Tropical Cyclones
[Index] | Tropical Cyclone ELLIE : JTWC Advisories |
Season 2008-2009 Summaries (Operational Data): [AU] [SIO] [SPAC] [SH] | |
---> Tropical Cyclone ELLIE Track Map and Data |
WTPS31 PGTW 20090131 21:00z MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC// SUBJ: TROPICAL CYCLONE 12P (ELLIE) WARNING NR 001 1. TROPICAL CYCLONE 12P (ELLIE) WARNING NR 001 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 311800Z --- NEAR 16.7S 147.5E MOVEMENT PAST SIX HOURS - 255 DEGREES AT 04 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT REPEAT POSIT: 16.7S 147.5E --- FORECASTS: 12 HRS, VALID AT: 010600Z --- 17.2S 147.0E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 215 DEG/ 03 KTS --- 24 HRS, VALID AT: 011800Z --- 17.7S 146.6E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 220 DEG/ 04 KTS --- 36 HRS, VALID AT: 020600Z --- 18.3S 146.1E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 48 HR POSIT: 200 DEG/ 02 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 021800Z --- 18.6S 146.0E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 312100Z POSITION NEAR 16.8S 147.4E. TROPICAL CYCLONE (TC) 12P (ELLIE), LOCATED APPROXIMATELY 100 NM EAST OF CAIRNS, AUSTRALIA HAS SLOWLY TRACKED WEST-SOUTHWESTWARD AT 04 KNOTS OVER THE PAST 06 HOURS. ANIMATED INFRARED SATELLITE IMAGERY AND A 311541Z AMSR-E IMAGE DEPICT A PARTIALLY-EXPOSED, WELL-DEFINED LOW-LEVEL CIRCULATION CENTER (LLCC) SHEARED ABOUT 20 NM EAST OF A LARGE, INTENSE AREA OF DEEP CONVECTION. OVER THE PAST 12 HOURS, THE LLCC HAS MOVED CLOSER TO THE DEEP CONVECTION AND HAS STRENGTHENED. OBSERVATIONS FROM HOLMES REEF INDICATE SUSTAINED (10-MINUTE AVERAGE) NORTHERLY WINDS OF 35-40 KNOTS WITH SLP OF 994MB WITH 24-HOUR SLP FALLS OF 4MB. EARLIER OBSERVATIONS INDICATED A MINIMUM SLP OF 990MB AS THE CENTER PASSED WITHIN 30NM OF HOLMES REEF. THIS WARNING WAS ISSUED BASED PRIMARILY ON THESE OBSERVATIONS DESPITE LOW DVORAK ESTIMATES OF 25 KNOTS FROM KNES/PGTW (ABRF IS AT 45 KNOTS). EARLIER SCATTEROMETER DATA AND OBSERVATIONS FROM GREEN ISLAND HAD INDICATED GALE FORCE WINDS, ENHANCED BY BOTH THE GRADIENT AND TOPOGRAPHY, ALONG THE SOUTH AND WEST QUADRANTS...THESE WINDS HAVE NOW WRAPPED INTO THE NORTHEAST QUADRANT. THE SYSTEM IS TRACKING WSW UNDER THE COMPETING STEERING INFLUENCES OF LOW-LEVEL WESTERLY FLOW NORTH AND LOW-LEVEL EASTERLY FLOW SOUTH ASSOCIATED WITH A LOW- TO MID-LEVEL SUBTROPICAL RIDGE OVER EASTERN AUSTRALIA, AND IS, THEREFORE, EXPECTED TO CONTINUE A SLOW TRACK WEST-SOUTHWESTWARD TO SOUTH- WESTWARD UNDER THE DOMINANT STERING INFLUENCE THROUGH THE FORECAST PERIOD. HIGH VERTICAL WIND SHEAR IS FORECAST TO CONTINUE HINDERING DEVELOPMENT AND TC 12P IS EXPECTED TO DISSIPATE BETWEEN TAU 36 AND 48 SOUTH OF CAIRNS. THE REMNANTS WILL LIKELY TRACK BACK EASTWARD BACK OVER WATER AND WILL BE MONITORED FOR POSSIBLE REGENERATION. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 311800Z IS 11 FEET. NEXT WARNINGS AT 010900Z AND 012100Z.// ========================================================================= WTPS31 PGTW 20090201 09:00z MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE 12P (ELLIE) WARNING NR 002// RMKS/ 1. TROPICAL CYCLONE 12P (ELLIE) WARNING NR 002 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 010600Z --- NEAR 17.5S 146.9E MOVEMENT PAST SIX HOURS - 200 DEGREES AT 05 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: 17.5S 146.9E --- FORECASTS: 12 HRS, VALID AT: 011800Z --- 18.0S 146.6E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 24 HR POSIT: 215 DEG/ 03 KTS --- 24 HRS, VALID AT: 020600Z --- 18.5S 146.2E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 36 HR POSIT: 210 DEG/ 03 KTS --- 36 HRS, VALID AT: 021800Z --- 19.0S 145.9E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 010900Z POSITION NEAR 17.6S 146.8E. TROPICAL CYCLONE (TC) 12P (ELLIE), LOCATED APPROXIMATELY 75 NM EAST- SOUTHEAST OF CAIRNS, AUSTRALIA HAS SLOWLY TRACKED SOUTHWESTWARD AT 05 KNOTS OVER THE PAST 06 HOURS. ANIMATED METSAT IMAGERY AND A 010353Z AMSR-E IMAGE DEPICT A PARTIALLY-EXPOSED LOW-LEVEL CIRCULATION CENTER (LLCC) LOCATED 30 NM EAST OF AN AREA OF DEEP CONVECTION. OVER THE PAST 12 HOURS, THE DEEP CONVECTION AND HAS WANED SIGNIFICANTLY, INDICATING THAT THE STORM IS BEGINNING TO WEAKEN. THIS IS CONFIRMED BY NEARBY SURFACE OBSERVATIONS AND A 312135Z WINDSAT IMAGE INDICATING WINDS NEAR THE CENTER OF 25 TO 35 KNOTS ALONG WITH DVORAK ESTIMATES OF 30 KNOTS FROM PGTW. THE SYSTEM CONTINUES TO TRACK SLOWLY SOUTHWESTWARD UNDER THE COMPETING STEERING INFLUENCES OF LOW- LEVEL WESTERLY FLOW TO THE NORTH AND SLIGHTLY MORE DOMINANT EAST- NORTHEASTERLY FLOW SOUTH OF THE STORM ASSOCIATED WITH A LOW- TO MID- LEVEL SUBTROPICAL RIDGE OVER EASTERN AUSTRALIA. MODERATE VERTICAL WIND SHEAR IS FORECAST TO CONTINUE HINDERING DEVELOPMENT AND TC 12P IS EXPECTED TO DISSIPATE BETWEEN TAU 24 AND 36 AFTER MAKING LANDFALL SOUTH OF CAIRNS. THE REMNANTS WILL LIKELY TRACK BACK EASTWARD BACK OVER WATER AND WILL BE MONITORED CLOSELY FOR POSSIBLE REGENERATION. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 010600Z IS 11 FEET. NEXT WARNINGS AT 012100Z AND 020900Z. ========================================================================= WTPS31 PGTW 20090201 21:00z SUBJ: TROPICAL CYCLONE 12P (ELLIE) WARNING NR 003 1. TROPICAL CYCLONE 12P (ELLIE) WARNING NR 003 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 011800Z --- NEAR 18.3S 145.7E MOVEMENT PAST SIX HOURS - 235 DEGREES AT 07 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: 18.3S 145.7E --- FORECASTS: 12 HRS, VALID AT: 020600Z --- 18.1S 145.6E 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: 060 DEG/ 01 KTS --- 24 HRS, VALID AT: 021800Z --- 18.0S 145.8E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 36 HR POSIT: 075 DEG/ 02 KTS --- 36 HRS, VALID AT: 030600Z --- 17.9S 146.2E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 48 HR POSIT: 090 DEG/ 02 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 031800Z --- 17.9S 146.7E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 012100Z POSITION NEAR 18.3S 145.7E. TROPICAL CYCLONE (TC) 12P (ELLIE), LOCATED APPROXIMATELY 85 NM SOUTH OF CAIRNS, AUSTRALIA HAS TRACKED SOUTHWESTWARD AT 07 KNOTS OVER THE PAST 06 HOURS. ANIMATED INFRARED SATELLITE IMAGERY AND THE TOWNSVILLE AND CAIRNS RADARS INDICATE THAT TC 12P MADE LANDFALL SOUTH OF CAIRNS AT APPROXIMATELY 01/14Z AND HAS WEAKENED SLIGHTLY AND TRACKED FURTHER INLAND OVER THE PAST 06 HOURS. THE LOW-LEVEL CIRCULATION CENTER IS CLEARLY DISCERNIBLE WITH BANDING REMAINING OVER THE NORTHERN AND NORTHEASTERN QUADRANT AND STRONG INFLOW OVER THE SOUTHEASTERN FLANK. THE MAJORITY OF THE SURFACE OBSERVATIONS SUPPORT THE CURRENT INTENSITY OF 30 KNOTS, HOWEVER, COASTAL OBSERVATIONS FROM LUCINDA, SOUTHEAST OF THE CENTER, REMAIN STRONGER AT 30-35 KNOTS SUSTAINED. TC 12P IS EXPECTED TO TRACK SLOWLY WESTWARD TO NORTHWESTWARD THROUGH TAU 12 BUT SHOULD WEAKEN WITH THE REMNANTS LIKELY TO TRACK BACK OVER WATER IN A GENERAL EASTWARD DIRECTION. THERE IS A POSSIBILITY THAT THE SYSTEM MAY REGENERATE AFTER 24-36 HOURS WITH BOTH THE GFS AND ECMWF INDICATING 35 KNOT WINDS AFTER 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 011800Z IS 10 FEET.//
Tropical cyclone tracks developed by Michael Bath using operational warnings and advisories.
Document: tropical_cyclone_ellie_jtwc_advisories.htm
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