Winter Storm #2 still likely for Southern Plains through Mid-Atlantic!
<img style="margin: 3px; float: left;" alt="2010okblizzard2_watch" src="
http://www.tornadovideos.net/images/stories/2010/2010okblizzard2_watch.jpg" height="115" width="150" /><img style="margin: 3px; float: left;" alt="2010okblizzard1_precip" src="
http://www.tornadovideos.net/images/stories/2010/2010okblizzard1_precip.jpg" height="115" width="160" />A witner storm watch has been issued by the National Weather Service for parts of Northwest Texas through much of Oklahoma for Thursday, as the 18z NAM is continuing to forecast a powerful winter storm moving from the Southern Plains through the Mid Atlantic, from midweek to the weekend. Different from the Christmas Eve blizzard, there will be many forms of significant winter precipitation, including a large region that will be inundated by more than an inch of accumulated freezing rain. It looks right now like the Texas Panhandle into western Oklahoma will see the most significant snow accumulations of 1-2 feet, while eastern <img style="margin: 3px; float: left;" alt="2010okblizzard1_sounding" src="
http://www.tornadovideos.net/images/stories/2010/2010okblizzard1_sounding.jpg" height="121" width="120" />Oklahoma into northern Arkansas will likely see more than two inches of freezing rain followed by several inches of snowfall on the backside of the system. Here in central OK, we'll likey receive intense freezing rain and sleet beginning Wednesday night and continuing early Thursday, changing to very heavy snow by afternoon, with 8-10 inches of snow on top of ice accumulations. Shown at left is the 18z NAM forecast sounding for OUN at 21z Thursday, right around when the sleet will be changing to snow, after which over an inch of water equivalnet precipitation is still forecast to fall.. The 12z to 18z NAM trended slightly southward with the track of this system, with the GFS showing the furthest south track, so I wouldn't be surprised if this southward trend continues with subsequent model runs. By Friday and Saturday, the Ohio River Valley through Mid-Atlantic region, including DC and Philadelphia, could get several inches of snow. It is possible this system could then track northeastward along the western edge of the Gulf Stream, with NYC to Boston also receiving significant snow by late in the weekend. Stay tuned for updates!
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