Tropical Cyclones
[Index] | Tropical Cyclone OLGA : JTWC Advisories |
Season 2009-2010 Summaries (Operational Data): [AU] [SIO] [SPAC] [SH] | |
---> Tropical Cyclone OLGA Track Map and Data |
WTPS21 PGTW 20100122 20:30z MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE FORMATION ALERT// RMKS/ 1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN 195 NM EITHER SIDE OF A LINE FROM 15.9S 153.2E TO 17.6S 146.0E WITHIN THE NEXT 12 TO 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME. WINDS IN THE AREA ARE ESTIMATED TO BE 30 TO 33 KNOTS. METSAT IMAGERY AT 221730Z INDICATES THAT A CIRCULATION CENTER IS LOCATED NEAR 16.6S 151.6E. THE SYSTEM IS MOVING WEST-SOUTHWESTWARD AT 19 KNOTS. 2. REMARKS: THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 12.5S 157.3E IS NOW LOCATED NEAR 16.6S 151.6E, APPROXIMATELY 335 NM EAST OF CAIRNS, AUSTRALIA. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY SHOWS PERSISTENT, DEEP CONVECTION PERSISTING OVER A DEVELOPING LOW LEVEL CIRCULATION CENTER (LLCC). A 221514Z AMSR-E AND A 221700Z TRMM PASS INDICATED BANDING CONVECTION IS DEVELOPING AROUND THE LLCC, AND IS SUPPORTED BY ANIMATED RADAR IMAGERY FROM WILLIS ISLAND, AUSTRALIA. RECENT OBSERVATIONS FROM WILLIS ISLAND AND LIHOU REEF INDICATE WINDS NEAR THE LLCC ARE BETWEEN 25 AND 30 KNOTS, WITH STRONGER CONVERGENT FLOW BETWEEN 30 AND 35 KNOTS TO THE SOUTH OF THE LLCC. CENTRAL PRESSURES ARE ESTIMATED BETWEEN 999 AND 1001 MB BASED ON THE RECENT OBSERVATIONS MENTIONED PREVIOUSLY. UPPER LEVEL ANALYSIS INDICATES THE LLCC IS LOCATED EQUATORWARD OF A SUBTROPICAL RIDGE AXIS, WHICH IS PROVIDING STRONG EASTERLY FLOW ALOFT. THIS IS SUPPORTING GOOD WEST- WARD OUTFLOW, BUT IS ALSO CREATING A MODERATE TO HIGH VERTICAL WIND SHEAR ENVIRONMENT. MAXIMUM SUSTAINED WINDS ARE ESTIMATED AT 30 TO 35 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1000 MB. BASED ON THE RADAR IMAGERY AND SUPPORTING OBSERVATIONS NEAR THE LLCC, THE POTENTIAL FOR DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS GOOD. 3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY 232030Z.// ========================================================================= WTPS31 PGTW 20100123 03:00z MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE 09P (OLGA) WARNING NR 001// RMKS/ 1. TROPICAL CYCLONE 09P (OLGA) WARNING NR 001 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 230000Z --- NEAR 16.6S 150.2E MOVEMENT PAST SIX HOURS - 270 DEGREES AT 13 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY REPEAT POSIT: 16.6S 150.2E --- FORECASTS: 12 HRS, VALID AT: 231200Z --- 16.1S 147.6E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 285 DEG/ 11 KTS --- 24 HRS, VALID AT: 240000Z --- 15.5S 145.3E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 36 HR POSIT: 275 DEG/ 10 KTS --- 36 HRS, VALID AT: 241200Z --- 15.3S 143.3E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 48 HR POSIT: 265 DEG/ 11 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 250000Z --- 15.4S 141.0E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 260 DEG/ 06 KTS --- 72 HRS, VALID AT: 260000Z --- 15.9S 138.4E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 000 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 000 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 260 DEG/ 05 KTS --- LONG RANGE OUTLOOK: NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 250 NM ON DAY 4 AND 350 NM ON DAY 5... AND FOR INTENSITY NEAR 20 KT EACH DAY. --- 96 HRS, VALID AT: 270000Z --- 16.2S 136.5E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 120 HR POSIT: 265 DEG/ 06 KTS --- 120 HRS, VALID AT: 280000Z --- 16.4S 134.1E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY --- REMARKS: 230300Z POSITION NEAR 16.5S 149.6E. TROPICAL CYCLONE (TC) 09P (OLGA), LOCATED APPROXIMATELY 260 NM EAST OF CAIRNS, AUSTRALIA, HAS TRACKED WESTWARD AT 13 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY SHOWS PERSISTENT, DEEP, BANDING CONVECTION WRAPPING TOWARDS A DEVELOPING LOW LEVEL CIRCULATION CENTER (LLCC). A 221514Z AMSR-E AND A 221700Z TRMM PASS ALSO SHOWS THE BANDING CONVECTION WRAPPING INTO THE LLCC. ANIMATED RADAR IMAGERY FROM WILLIS ISLAND, AUSTRALIA SHOWS THE CONVECTION IS STRONGEST ALONG THE NORTHERN HALF OF THE LLCC, AND A CLEAR CENTER EVIDENT IN THIS RADAR IMAGERY LENDS GOOD CONFIDENCE TO THE INITIAL POSITION OF THE SYSTEM ESTIMATED IN THIS WARNING. OBSERVATIONS FROM WILLIS ISLAND INDICATE THAT WINDS NEAR THE LLCC ARE AROUND 35 KNOTS, WHICH IS IN GOOD AGREEMENT WITH THE 2.5 DVORAK FIX FROM PGTW. CENTRAL PRESSURES, BASED ON THE OBSERVATIONS AT WILLIS ISLAND, HAVE CONTINUED TO DROP AND ARE CURRENTLY AT 993.5 MB. THE LLCC HAS PASSED ALMOST DIRECTLY OVER THE ISLAND, PROVIDING A VERY GOOD BASELINE FOR ANALYSIS OF THE SYSTEM AS IT HAS DEVELOPED. A LOW PRESSURE SYSTEM TO THE NORTHWEST IS CURRENTLY TRACKING TOWARDS TC 09P, AND IS EXPECTED TO MERGE WITH THE TC 09P WITHIN THE NEXT 12 TO 24 HOURS. HOWEVER, INTERACTIONS BETWEEN THE TWO SYSTEMS PRIOR TO THEIR MERGER WILL LIKELY HINDER TC 09P FROM RAPIDLY INTENSIFYING PRIOR TO LANDFALL IN NORTHEASTERN AUSTRALIA. ON THE OTHER HAND, THE INCREASE IN VORTICITY AFTER THEIR MERGER SHOULD HELP TO MAINTAIN THE SYSTEM AS IT TRACKS OVER CAPE YORK INTO THE GULF OF CARPENTARIA. UPON ENTERING THE GULF, WEAKENING VERTICAL WIND SHEAR AND PASSAGE OVER VERY WARM WATER WILL LEAD TO A BRIEF PERIOD OF INTENSIFICATION BEFORE THE CYCLONE MOVES BACK OVER LAND AROUND TAU 96. MODEL GUIDANCE IS IN FAIR AGREEMENT WITH THE CURRENT FORECAST, WITH THE TRACK BASED ON A CON- SENSUS OF ALL AVAILABLE GUIDANCE. MINIMUM SEA LEVEL PRESSURE IS ESTI- MATED TO BE NEAR 993 MB. THIS WARNING SUPERSEDES AND CANCELS REF A, NAVMARFCSTCEN 222021Z JAN 10 TROPICAL CYCLONE FORMATION ALERT ========================================================================= WTPS31 PGTW 20100123 15:00z MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE 09P (OLGA) WARNING NR 002// RMKS/ 1. TROPICAL CYCLONE 09P (OLGA) WARNING NR 002 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 231200Z --- NEAR 16.4S 148.1E MOVEMENT PAST SIX HOURS - 280 DEGREES AT 10 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT REPEAT POSIT: 16.4S 148.1E --- FORECASTS: 12 HRS, VALID AT: 240000Z --- 16.0S 146.4E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 015 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 015 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 275 DEG/ 09 KTS --- 24 HRS, VALID AT: 241200Z --- 15.9S 144.5E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 36 HR POSIT: 265 DEG/ 11 KTS --- 36 HRS, VALID AT: 250000Z --- 16.1S 142.3E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 48 HR POSIT: 260 DEG/ 12 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 251200Z --- 16.5S 139.9E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 010 NM NORTHEAST QUADRANT 010 NM SOUTHEAST QUADRANT 010 NM SOUTHWEST QUADRANT 010 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 270 DEG/ 07 KTS --- 72 HRS, VALID AT: 261200Z --- 16.6S 137.0E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 96 HR POSIT: 275 DEG/ 07 KTS --- LONG RANGE OUTLOOK: NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 250 NM ON DAY 4 AND 350 NM ON DAY 5... AND FOR INTENSITY NEAR 20 KT EACH DAY. --- 96 HRS, VALID AT: 271200Z --- 16.3S 134.2E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 120 HR POSIT: 285 DEG/ 07 KTS --- 120 HRS, VALID AT: 281200Z --- 15.5S 131.6E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY --- REMARKS: 231500Z POSITION NEAR 16.3S 147.7E. TROPICAL CYCLONE (TC) 09P (OLGA), LOCATED APPROXIMATELY 150 NM EAST- NORTHEAST OF CAIRNS, AUSTRALIA, HAS TRACKED WESTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. SINCE THE LAST WARNING, TC OLGA HAS INTENSIFIED BY 15 KNOTS AS THE SYSTEM IS LOCATED NEAR A SUBTROPICAL RIDGE AXIS WITH LOW TO MODERATE VERTICAL WIND SHEAR AND GOOD RADIAL OUTFLOW. ADDITIONALLY, ANIMATED INFRARED IMAGERY AND A 230758Z SSMIS MICROWAVE IMAGE SHOW CONVECTIVE BANDING INTO A STRENGTHENING LOW LEVEL CIRCULATION CENTER (LLCC). THE IMAGERY ALSO DEPICTS DIRECT CYCLONE INTERACTION (DCI) OCCURING BETWEEN TC 09P AND AN INVEST AREA LOCATED 150 NM TO THE NORTH-NORTHEAST. THE DCI WILL ENABLE TC OLGA TO INTENSIFY SLIGHTLY AND TRACK WEST-NORTHWEST AS THE CYCLONE MERGES WITH THE OTHER SYSTEM BY TAU 24. AS TC 09P CONTINUES INTO THE GULF OF CARPENTERIA AFTER TAU 36, OLGA WILL RE-INTENSIFY DUE TO VERY WARM WATERS AND DECREASING VERTICAL WIND SHEAR. BY TAU 72, TC 09P WILL ONCE AGAIN REACH LAND AND GRADUALLY WEAKEN. IN THE EXTENDED TAU'S, THE STEERING RIDGE IS EXPECTED TO REORIENT AND CAUSE THE SYSTEM TO MOVE MORE NORTHWEST. THE MAJORITY OF THE NUMERICAL MODELS ARE IN AGREEMENT WITH THIS FORECAST EXCEPT FOR JGSM AND TCLAPS WHICH DEPICT A WEAKER STEERING RIDGE AND TAKE THE SYSTEM IN A MORE SOUTHWESTERLY DIRECTION. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 231200Z IS 15 FEET. NEXT WARNINGS AT 240300Z AND 241500Z.// ========================================================================= WTPS31 PGTW 20100124 03:00z MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE 09P (OLGA) WARNING NR 003// RMKS/ 1. TROPICAL CYCLONE 09P (OLGA) WARNING NR 003 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 240000Z --- NEAR 15.7S 146.1E MOVEMENT PAST SIX HOURS - 285 DEGREES AT 09 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT REPEAT POSIT: 15.7S 146.1E --- FORECASTS: 12 HRS, VALID AT: 241200Z --- 15.6S 144.0E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 24 HR POSIT: 265 DEG/ 10 KTS --- 24 HRS, VALID AT: 250000Z --- 15.7S 141.9E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 36 HR POSIT: 255 DEG/ 10 KTS --- 36 HRS, VALID AT: 251200Z --- 16.2S 139.8E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 030 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 260 DEG/ 10 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 260000Z --- 16.6S 137.7E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 72 HR POSIT: 275 DEG/ 07 KTS --- 72 HRS, VALID AT: 270000Z --- 16.4S 134.9E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 96 HR POSIT: 275 DEG/ 06 KTS --- LONG RANGE OUTLOOK: NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 250 NM ON DAY 4 AND 350 NM ON DAY 5... AND FOR INTENSITY NEAR 20 KT EACH DAY. --- 96 HRS, VALID AT: 280000Z --- 16.1S 132.6E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 120 HR POSIT: 290 DEG/ 03 KTS --- 120 HRS, VALID AT: 290000Z --- 15.7S 131.3E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 240300Z POSITION NEAR 15.7S 145.6E. TROPICAL CYCLONE (TC) 09P (OLGA), LOCATED APPROXIMATELY 75 NM NORTH- NORTHEAST OF CAIRNS, AUSTRALIA, HAS TRACKED WEST-NORTHWESTWARD AT 09 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) SHOWS THE LOW LEVEL CIRCULATION CENTER (LLCC) HAS MAIN- TAINED ITS ORGANIZATIONAL STRUCTURE OVER THE PAST 12 HOURS, WITH THE DEEP CONVECTION REMAINING OVER THE LLCC EVEN WITH THE STRONG UPPER LEVEL EASTERLY FLOW IMPACTING ON THE EASTERN HALF OF THE SYSTEM. THE WESTERN OUTFLOW REMAINS VERY FAVORABLE DUE TO THIS UPPER LEVEL FLOW. VERTICAL WIND SHEAR (VWS) WILL REMAIN A MAJOR FACTOR AS TC 09P MOVES OVER CAPE YORK INTO THE GULF OF CARPENTARIA. VWS IS CURRENTLY AT A MODERATE TO HIGH LEVEL (20 TO 30 KNOTS) BUT IS EXPECTED TO SLOWLY DECREASE AS TC 09P MOVES TOWARD THE CENTRAL PORTION OF NORTHERN AUST- RALIA. THE INTENSITY WILL DECREASE SLIGHTLY OVER THE CAPE, BUT WILL BEGIN TO STRENGTHEN AS IT TRACKS INTO THE GULF. A MID-LEVEL SUB- TROPICAL RIDGE THAT IS CURRENTLY STEERING TC 09P WILL BEGIN TO WEAKEN BETWEEN TAU 72 AND TAU 96, LEADING TO A SLOWING OF THE SYSTEM AND EVENTUALLY CAUSING TC 09P TO BECOME QUASI-STATIONARY AROUND TAU 120. UPON MOVING BACK OVER AUSTRALIA, AROUND TAU 48, THE COMBINATION OF MODERATE VWS AND LAND EFFECTS WILL SLOWLY WEAKEN TC 09P. COMPLETE DISSIPATION IS NOT EXPECTED WITHIN THIS FORECAST PERIOD. MODEL GUID- ANCE IS IN FAIR AGREEMENT WITH THE TRACK AND INTENSITY FORECAST. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 240000Z IS 11 FEET. NEXT WARNINGS AT 241500Z AND 250300Z.// ========================================================================= WTPS31 PGTW 20100124 15:00z MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE 09P (OLGA) WARNING NR 004// RMKS/ 1. TROPICAL CYCLONE 09P (OLGA) WARNING NR 004 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 241200Z --- NEAR 16.3S 145.9E MOVEMENT PAST SIX HOURS - 250 DEGREES AT 03 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT REPEAT POSIT: 16.3S 145.9E --- FORECASTS: 12 HRS, VALID AT: 250000Z --- 16.4S 144.7E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 24 HR POSIT: 255 DEG/ 07 KTS --- 24 HRS, VALID AT: 251200Z --- 16.7S 143.3E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 241500Z POSITION NEAR 16.3S 145.6E. TROPICAL CYCLONE (TC) 09P (OLGA), LOCATED APPROXIMATELY 40 NM NORTH OF CAIRNS, AUSTRALIA, HAS TRACKED WEST-SOUTHWESTWARD AT 04 KNOTS OVER THE PAST SIX HOURS. ANIMATED INFRARED IMAGERY SHOWS A SIGNIFICANT DECREASE IN CONVECTION OVER THE PAST TWELVE HOURS AND SURFACE OBSERVATIONS THROUGHOUT THE AREA HAVE CONSISTENTLY BEEN LESS THAN GALE-FORCE STRENGTH. THEREFORE, THE CURRENT INTENSITY OF 35 KTS IS SUPPORTED BY THE PGTW DVORAK ESTIMATE AND JUSTIFIED DESPITE THE APPEARANCE OF AN EYE-LIKE FEATURE IN A 240411Z AMSR-E MICROWAVE IMAGE. AS FOR POSITION, THE CAIRNS RADAR SHOWS A BROADENING LOW LEVEL CIRCULATION CENTER (LLCC) AND THE CURRENT SYSTEM POSITION IS HIGHLY UNCERTAIN DUE TO THE LACK OF CONVECTION IN THE RADAR SIGNATURE AND CLOUDS OBSCURING THE LLCC IN THE INFRARED IMAGERY. ADDITIONALLY, RECENT OBSERVATIONS SUGGEST THAT TC 09P MAY EVEN BE DRIFTING SLOWLY SOUTHEASTWARD AS IT IS CURRENTLY LOCATED IN AN OPPOSING STEERING ENVIRONMENT. SINCE THE SYSTEM HAS WEAKENED, THE STEERING LEVEL HAS SHIFTED TO THE LOWER LEVELS WITH THE CROSS- EQUATORIAL WESTERLY FLOW TO THE NORTH BECOMING MORE OF A STEERING INFLUENCE THAN THE MID-LEVEL SUBTROPICAL RIDGE TO THE SOUTH. OVER THE NEXT 12 HOURS, TC OLGA IS EXPECTED TO RESUME A SLOW, WESTWARD TRACK AND DISSIPATE AS A SIGNIFICANT TROPICAL CYCLONE OVER THE NEXT 24 HOURS. NUMERICAL MODEL GUIDANCE IS IN GOOD AGREEMENT WITH A WESTWARD TRACK. HOWEVER, IT APPEARS THAT THE MODELS ARE OVER- INITIALIZING THE INTENSITY OF THE SYSTEM AND ARE SUBSEQUENTLY MOVING OLGA FASTER THAN THE CURRENT FORECAST VIA THE SUBTROPICAL RIDGE. FINALLY, THE POSSIBILITY REMAINS THAT TC O9P MAY RE-INTENSIFY TO MINIMAL GALE STRENGTH IN THE GULF OF CARPENTENTARIA AROUND TAU 48. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WARNING CENTER (NAVMARFCSTCEN). THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 241200Z IS 10 FEET.// ========================================================================= WTPS21 PGTW 20100126 17:30z RMKS/ 1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN A 170 NM RADIUS OF 16.1S 137.8E WITHIN THE NEXT 12 TO 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME. WINDS IN THE AREA ARE ESTIMATED TO BE 25 TO 30 KNOTS. METSAT IMAGERY AT 261730Z INDICATES THAT A CIRCULATION CENTER IS LOCATED NEAR 16.8S 138.1E. THE SYSTEM IS MOVING NORTHWESTWARD AT 12 KNOTS. 2. REMARKS: THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 18.3S 140.2E IS NOW LOCATED NEAR 16.8S 138.1E, APPROXIMATELY 60 NM WEST OF MORNINGTON ISLAND, AUSTRALIA. COMPOSITE RADAR IMAGERY FROM MORNINGTON ISLAND INDICATES A CONSOLIDATING LOW-LEVEL CIRCULATION CENTER (LLCC) WITH CONVECTIVE BANDING WRAPPING INTO A WELL-DEFINED LLCC. RADAR IMAGERY ALSO INDICATES THAT THE LLCC IS TRACKING ALONG THE COAST OF THE GULF OF CARPENTARIA AND IS LOCATED NEAR 16.4S 137.9E AT 26/17Z. SURFACE OBSERVATIONS FROM CENTRE ISLAND AND MORNINGTON ISLAND INDICATE SUSTAINED WINDS OF 10-20 KNOTS, SLP NEAR 999 MB AND 24-HOUR SLP FALLS OF 3 MB INDICATIVE OF A STRENGTHENING SYSTEM. UPPER-LEVEL ANALYSIS INDICATES A FAVORABLE ENVIRONMENT WITH A DEVELOPING ANTICYCLONE OVER THE SOUTHEAST GULF OF CARPENTARIA, GOOD OVERALL OUTFLOW AND WEAK VERTICAL WIND SHEAR. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 25 TO 30 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 998 MB. BASED ON THE EXPECTED TRACK OVER THE GULF OF CARPENTARIA AND RECENT IMPROVED ORGANIZATION, THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS GOOD. 3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY 271730Z.// ========================================================================= WTPS31 PGTW 20100126 21:00z MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE 09P (OLGA) WARNING NR 005// REF/A/MSG/NAVMARFCSTCEN PEARL HARBOR HI/261721ZJAN2010// AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT.// SUBJ: TROPICAL CYCLONE 09P (OLGA) WARNING NR 005 1. TROPICAL CYCLONE 09P (OLGA) WARNING NR 005 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 261800Z --- NEAR 16.4S 137.9E MOVEMENT PAST SIX HOURS - 325 DEGREES AT 07 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE, RADAR AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY REPEAT POSIT: 16.4S 137.9E --- FORECASTS: 12 HRS, VALID AT: 270600Z --- 15.7S 137.0E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 330 DEG/ 03 KTS --- 24 HRS, VALID AT: 271800Z --- 15.2S 136.7E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 075 DEG/ 02 KTS --- 36 HRS, VALID AT: 280600Z --- 15.1S 137.1E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 105 DEG/ 02 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 281800Z --- 15.2S 137.5E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 125 DEG/ 05 KTS --- 72 HRS, VALID AT: 291800Z --- 16.2S 139.1E MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 130 DEG/ 09 KTS --- LONG RANGE OUTLOOK: NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 250 NM ON DAY 4 AND 350 NM ON DAY 5... AND FOR INTENSITY NEAR 20 KT EACH DAY. --- 96 HRS, VALID AT: 301800Z --- 18.6S 142.1E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 120 HR POSIT: 145 DEG/ 11 KTS --- 120 HRS, VALID AT: 311800Z --- 22.4S 144.8E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 262100Z POSITION NEAR 16.2S 137.7E. TROPICAL CYCLONE (TC) 09P (OLGA), LOCATED APPROXIMATELY 100 NM WEST OF MORNINGTON ISLAND, HAS TRACKED NORTHWESTWARD AT 07 KNOTS OVER THE PAST SIX HOURS. ANIMATED INFRARED SATELLITE IMAGERY, RADAR IMAGERY FROM THE MORNINGTON ISLAND RADAR, AND A 261628Z AMSR-E 85 GHZ MICROWAVE IMAGE INDICATE THAT THE SYSTEM HAS REGENERATED ALONG THE SOUTHERN COAST OF THE GULF OF CARPENTARIA WITH IMPROVED CONSOLIDATION AND TIGHTLY CURVED BANDING WRAPPING INTO THE LOW LEVEL CIRCULATION CENTER (LLCC). THE CURRENT INTENSITY IS BASED ON DVORAK ESTIMATES RANGING FROM 30 TO 35 KNOTS FROM ADRM AND PGTW. THE SYSTEM IS CURRENTLY LOCATED IN A REGION OF HIGH SST (31C) AND FAVORABLE OHC VALUES. UPPER LEVEL ANALYSIS INDICATES THAT THE SYSTEM IS UNDER AN UPPER LEVEL ANTICYCLONE WITH WEAK VERTICAL WIND SHEAR AND GOOD RADIAL OUTFLOW. THE SYSTEM IS CURRENTLY TRACKING NORTHWESTWARD ALONG THE NORTHERN PERIPHERY OF A LOW TO MID LEVEL SUBTROPICAL RIDGE (STR) OVER CENTRAL AUSTRALIA. THE STR IS EXPECTED TO BUILD NORTHWESTWARD AFTER TAU 12, THEREFORE, THE SYSTEM IS FORECAST TO SLOW AND TURN NORTH TO NORTHEASTWARD. BY TAU 48 A DEEPENING SHORTWAVE TROUGH WILL BREAK DOWN THE STR AND, IN COMBINATION WITH THE NEAR-EQUATORIAL RIDGE, PROVIDE AN EASTWARD TO SOUTHEASTWARD STEERING INFLUENCE. TC 09P IS EXPECTED TO SLOWLY INTENSIFY THROUGH TAU 24 DUE TO CONTINUED LAND INTERACTION, BUT IS FORECAST TO INTENSIFY AT A 15-20 KNOT RATE PER DAY UNDER VERY FAVORABLE CONDITIONS. AFTER TAU 72 THE SYSTEM IS EXPECTED TO WEAKEN AS IT INTERACTS WITH LAND AND SHOULD DISSIPATE BY TAU 120. NUMERICAL MODEL GUIDANCE IS IN GOOD AGREEMENT WITH THIS FORECAST ALTHOUGH THERE ARE SLIGHT DIFFERENCES IN THE TIMING OF THE TURN EASTWARD. THIS WARNING SUPERSEDES AND CANCELS REF A, NAVMARFCSTCEN 261721Z JAN 10 TROPICAL CYCLONE FORMATION ALERT ========================================================================= WTPS31 PGTW 20100127 09:00z MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE 09P (OLGA) WARNING NR 006// RMKS/ 1. TROPICAL CYCLONE 09P (OLGA) WARNING NR 006 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 270600Z --- NEAR 16.4S 137.1E MOVEMENT PAST SIX HOURS - 270 DEGREES AT 04 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY REPEAT POSIT: 16.4S 137.1E --- FORECASTS: 12 HRS, VALID AT: 271800Z --- 16.1S 136.8E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 24 HR POSIT: 360 DEG/ 02 KTS --- 24 HRS, VALID AT: 280600Z --- 15.7S 136.8E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 100 DEG/ 04 KTS --- 36 HRS, VALID AT: 281800Z --- 15.8S 137.6E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT 015 NM SOUTHEAST QUADRANT 015 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 115 DEG/ 06 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 290600Z --- 16.3S 138.8E MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 015 NM NORTHEAST QUADRANT 015 NM SOUTHEAST QUADRANT 015 NM SOUTHWEST QUADRANT 015 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 130 DEG/ 10 KTS --- 72 HRS, VALID AT: 300600Z --- 19.0S 142.0E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 96 HR POSIT: 150 DEG/ 14 KTS --- LONG RANGE OUTLOOK: NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 250 NM ON DAY 4 AND 350 NM ON DAY 5... AND FOR INTENSITY NEAR 20 KT EACH DAY. --- 96 HRS, VALID AT: 310600Z --- 23.8S 144.8E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 270900Z POSITION NEAR 16.3S 137.0E. TROPICAL CYCLONE (TC) 09P (OLGA), LOCATED APPROXIMATELY 500 NM WEST OF CAIRNS, AUSTRALIA, HAS TRACKED WESTWARD AT 04 KNOTS OVER THE PAST SIX HOURS. RECENT ANIMATED MULTISPECTRAL SATELLITE AND COMPOSITE RADAR IMAGERY FROM MORNINGTON ISLAND SUGGEST THAT THE LOW LEVEL CIRCULATION CENTER (LLCC) HAS YET TO EXIT INTO THE GULF OF CARPENTARIA. BORROLOOLA, THE NEAREST REPORTING STATION TO THE LLCC, IS REPORTING SEA LEVEL PRESSURE AT 994.1 MB, WHICH GENERALLY SUPPORTS AT LEAST A 35 KNOT CIRCULATION. THE LLCC IS EXPECTED TO TURN TOWARDS THE NORTH AND ENTER THE GULF WITHIN THE NEXT DAY AS A TRANSITORY, MID-LATITUDE TROUGH WEAKENS THE STEERING RIDGE TO THE SOUTH. ALL AVAILABLE CONSENSUS MEMBERS, WITH THE EXCEPTION OF WBAR, INDICATE A TURN BACK TOWARDS THE EAST WITHIN THE 12 TO 24 HOURS. AS THIS RIDGE WEAKENS, MID TO DEEP LAYER RIDGING TO THE NORTHEAST WILL BECOME THE PREDOMINANT STEERING FORCE AND WILL TRACK THE SYSTEM TOWARDS THE EAST, DEEPER INTO THE GULF. WARM SEA SURFACE TEMPERATURES, RANGING FROM 28 DEGREES CELSIUS (C) NEAR THE COASTLINE TO OVER 30 C FURTHER OUT TO SEA, WILL SUPPORT MARKED INTENSIFICATION, IN ADDITION TO STRONG RADIAL OUTFLOW ALOFT AND LOW VERTICAL WIND SHEAR. BETWEEN TAU 48 AND 72 OLGA WILL TRACK BACK OVER LAND AND BEGIN TO DISSIPATE. NEXT WARNINGS AT 272100Z AND 280900Z.// ========================================================================= WTPS31 PGTW 20100127 21:00z MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE 09P (OLGA) WARNING NR 007// RMKS/ 1. TROPICAL CYCLONE 09P (OLGA) WARNING NR 007 02 ACTIVE TROPICAL CYCLONES IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 271800Z --- NEAR 16.3S 136.3E MOVEMENT PAST SIX HOURS - 205 DEGREES AT 02 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY REPEAT POSIT: 16.3S 136.3E --- FORECASTS: 12 HRS, VALID AT: 280600Z --- 16.1S 136.5E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 24 HR POSIT: 065 DEG/ 02 KTS --- 24 HRS, VALID AT: 281800Z --- 15.9S 136.9E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 100 DEG/ 06 KTS --- 36 HRS, VALID AT: 290600Z --- 16.1S 138.2E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 055 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 125 DEG/ 09 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 291800Z --- 17.1S 139.7E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 055 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 145 DEG/ 09 KTS --- 72 HRS, VALID AT: 301800Z --- 20.1S 141.9E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 96 HR POSIT: 155 DEG/ 09 KTS --- LONG RANGE OUTLOOK: NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 250 NM ON DAY 4 AND 350 NM ON DAY 5... AND FOR INTENSITY NEAR 20 KT EACH DAY. --- 96 HRS, VALID AT: 311800Z --- 23.4S 143.7E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 272100Z POSITION NEAR 16.3S 136.3E. TROPICAL CYCLONE (TC) 09P (OLGA), LOCATED APPROXIMATELY 550 NM WEST OF CAIRNS, AUSTRALIA, HAS BEEN QUASI-STATIONARY OVER THE PAST SIX HOURS. ANIMATED INFRARED SATELLITE IMAGERY SHOWS TC 09P HAS BEEN SLOWLY TRACKING OVER LAND ALONG THE NORTHERN COAST OF AUSTRALIA. RADAR IMAGERY HAS HELPED TO LOCATE THE LOW LEVEL CIRCULATION CENTER (LLCC) AND OBSERVATIONS IN THE VICINITY HAVE BEEN USED TO ESTIMATE THE CURRENT INTENSITY OF 35 KNOTS. RECENTLY THERE HAS BEEN A SLIGHT SOUTHWARD TREND IN THE TRACK OF THE LLCC, BUT IT IS EXPECTED TO TRACK MORE TO THE EAST-NORTHEAST IN THE NEXT 12 TO 24 HOURS. TC 09P IS EXPECTED TO ENTER THE GULF OF CARPENTARIA BY TAU 24, AND WILL START TO INTENSIFY AS TC 09P TRACKS EASTWARD, SHIFTING TO EAST-SOUTHEAST BY TAU 36 AS NEAR-EQUATORIAL RIDGING TO THE NORTHEAST OF TC 09P BECOMES THE DOMINANT STEERING INFLUENCE. AS THE RIDGE BUILDS, IT IS FORECAST TO CONTINUE SHIFTING THE TRACK SOUTHWARD THROUGH TAU 96, WITH LAND- FALL INTO SOUTHERN CAPE YORK BETWEEN TAU 48 AND TAU 60. LAND INFLU- ENCES AND INCREASING VERTICAL WIND SHEAR WILL CAUSE TC 09P TO DISSI- PATE BY TAU 96 OVER THE CENTRAL PORTION OF EASTERN AUSTRALIA. MODEL GUIDANCE IS IN GOOD AGREEMENT WITH THE CURRENT FORECAST. NEXT WARNINGS AT 280900Z AND 282100Z. REFER TO TROPICAL CYCLONE 10P (NISHA) WARNINGS (WTPS32 PGTW) FOR TWELVE-HOURLY UPDATES.// ========================================================================= WTPS31 PGTW 20100128 09:00z MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE 09P (OLGA) WARNING NR 008// RMKS/ 1. TROPICAL CYCLONE 09P (OLGA) WARNING NR 008 02 ACTIVE TROPICAL CYCLONES IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 280600Z --- NEAR 17.3S 135.9E MOVEMENT PAST SIX HOURS - 200 DEGREES AT 08 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND REPEAT POSIT: 17.3S 135.9E --- FORECASTS: 12 HRS, VALID AT: 281800Z --- 17.2S 136.7E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 24 HR POSIT: 105 DEG/ 06 KTS --- 24 HRS, VALID AT: 290600Z --- 17.5S 137.9E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 280900Z POSITION NEAR 17.3S 136.1E. TROPICAL CYCLONE (TC) 09P (OLGA), LOCATED APPROXIMATELY 400 NM SOUTHEAST OF DARWIN, AUSTRALIA, HAS TRACKED SOUTH-SOUTHWESTWARD AT 08 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY SHOWS CONVECTIVE WRAPPING INTO A DEVELOPED LOW LEVEL CIRCULATION CENTER (LLCC) AND UPPER LEVEL ANALYSIS INDICATES THE SYSTEM IS IN A WEAK STEERING ENVIRONMENT WITH LOW VERTICAL WIND SHEAR. HOWEVER, THE ANIMATED VISIBLE IMAGERY ALSO SHOWS THE SYSTEM HAS CONTINUED TO TRACK SLOWLY OVER LAND IN A SOUTHWARD DIRECTION OVER THE LAST 18 HOURS. ACCORDINGLY, THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WARNING CENTER (NAVMARFCSTCEN). THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. REFER TO TROPICAL CYCLONE 10P (NISHA) WARNINGS (WTPS32 PGTW) FOR TWELVE- HOURLY UPDATES.// ========================================================================= WTPS31 PGTW 20100129 15:00z MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE 09P (OLGA) WARNING NR 009// REF/A/NAVMARFCSTCEN PEARL HARBOR HI/290851Z JAN 10// AMPN/TROPICAL CYCLONE FORMATION ALERT// RMKS/ 1. TROPICAL CYCLONE 09P (OLGA) WARNING NR 009 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 291200Z --- NEAR 16.3S 139.3E MOVEMENT PAST SIX HOURS - 100 DEGREES AT 15 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE AND RADAR PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY REPEAT POSIT: 16.3S 139.3E --- FORECASTS: 12 HRS, VALID AT: 300000Z --- 17.9S 141.5E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 24 HR POSIT: 150 DEG/ 13 KTS --- 24 HRS, VALID AT: 301200Z --- 20.1S 142.8E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 291500Z POSITION NEAR 16.7S 139.8E. JTWC IS RESUMING WARNINGS ON TROPICAL CYCLONE (TC) 09P (OLGA). TC 09P (OLGA), LOCATED APPROXIMATELY 275 WEST OF CAIRNS, AUSTRALIA, HAS TRACKED EASTWARD AT 15 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY SHOWS THAT TC OLGA HAS MOVED OUT INTO THE GULF OF CARPENTARIA OVER THE PAST SIX HOURS. ADDITIONALLY, RECENT RADAR IMAGERY FROM MORNINGTON ISLAND, AUSTRALIA, CAPTURES A CONSOLDATING LOW LEVEL CIRCULATION CENTER (LLCC) AND SEA LEVEL PRESSURES IN THE AREA ARE CLOSE TO 989 MB. DVORAK ESTIMATES RANGE FROM 25 KNOTS (PGTW) TO 45 KNOTS (ABRF). LOCATED IN AN AREA OF MINIMUM VERTICAL WIND SHEAR AND FAVORABLE SEA SURFACE TEMPERATURES, TC OLGA WILL INTENSIFY OVER THE NEXT SIX HOURS BEFORE TRACKING EAST- SOUTHEASTWARD AND ONCE AGAIN MAKING LANDFALL. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 291200Z IS 12 FEET. NEXT WARNINGS AT 300300Z. REFER TO TROPICAL CYCLONE 10P (NISHA) WARNINGS (WTPS32 PGTW) FOR TWELVE- HOURLY UPDATES. THIS WARNING SUPERSEDES AND CANCELS REF A (WTPS21 PGTW 290900).// ========================================================================= WTPS31 PGTW 20100130 03:00z SUBJ: TROPICAL CYCLONE 09P (OLGA) WARNING NR 010 1. TROPICAL CYCLONE 09P (OLGA) WARNING NR 010 02 ACTIVE TROPICAL CYCLONES IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 300000Z --- NEAR 18.4S 141.1E MOVEMENT PAST SIX HOURS - 150 DEGREES AT 14 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND REPEAT POSIT: 18.4S 141.1E --- FORECASTS: 12 HRS, VALID AT: 301200Z --- 20.4S 142.9E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 24 HR POSIT: 150 DEG/ 10 KTS --- 24 HRS, VALID AT: 310000Z --- 22.1S 144.0E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 300300Z POSITION NEAR 18.9S 141.5E. TROPICAL CYCLONE (TC) 09P (OLGA), LOCATED APPROXIMATELY 280 NM WEST- SOUTHWEST OF CAIRNS, AUSTRALIA, HAS TRACKED SOUTH-SOUTHEASTWARD AT 14 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY CONTINUES TO DEPICT DEEP CONVECTIVE BANDING WRAPPING INTO A WELL-DEFINED LOW-LEVEL CIRCULATION CENTER (LLCC). TC 09P MADE LANDFALL EAST OF BURKETOWN AT 29/20Z AND HAS CONTINUED TO TRACK INLAND. THE SYSTEM PASSED 40NM SOUTH OF NORMANTON AT 30/00Z WITH PEAK WINDS FROM THE NORTH-NORTHWEST AT 29 KNOTS GUSTING TO 39 KNOTS AND MINIMUM SLP OF 986.1 MB (AT 29/2030Z). THE SYSTEM IS EXPECTED TO DISSIPATE BY TAU 12-24 WHILE TRACKING SOUTHEASTWARD. TC 09P WILL MAINTAIN INTENSITY AT 25-30 KNOTS THROUGH THE NEXT 24-36 HOURS. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WARNING CENTER (NAVMARFCSTCEN). THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. REFER TO TROPICAL CYCLONE 10P (NISHA) FINAL WARNING (WTPS32 PGTW).//
Tropical cyclone tracks developed by Michael Bath using operational warnings and advisories.
Document: tropical_cyclone_olga_jtwc_advisories.htm
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