Sunday, May 4, 2008

More Severe Weather This Week?





We very well could have another multiple day severe weather outbreak...I have posted the 0z GFS image (8PM EDT) for each day where severe weather is possible...and will now break the possible outbreak down day by day:
-Tomorrow/Tomorrow night will not be that bad. Right now there is a small slight risk on the SPC day 2 outlook. For tomorrow it looks like the surface low will just be starting to develop across the Plains. Across the Southern Plains it looks like moisture will start returning from the gulf today and will be plentiful by tomorrow. This along with high CAPE values and a poorly defined dry line will allow scattered storms to pop from SW Texas up into OK/KS. Due to high amounts of shear and moisture some storms could become severe. The winds aloft will not be that strong tomorrow across the area in question, but will be coming from all sorts of directions so some storms could spawn tornadoes. Expect a map for this later today.
-Tuesday/Tuesday night there will be a bigger threat area. It appears that cold air will try to dive south across the Great Lakes/Northern Plains. This will likely spawn storms along the cold front that will be slowly pushing south from the Great Lakes to the Central Plains. It appears that this front may not get really active until later Tuesday evening but may stay active most of Tuesday night due to the jet stream speeding up and a 10-20 degree temp diff on either side of the front. This bodes well for a damaging wind threat.
-Wednesday/Wednesday night another low will develop over the Panhandle of Texas and slide ENE. This will be very interesting, almost like a winter time Panhandle hook in the early May. There will be very chilly air to the north of the system and warm, moist, and unstable air south of the system. There will also be an energetic low level jet across the deep south with this system. I will not get into specifics now since we are still several days but this will likely produce severe weather across the deep south Wednesday/Thursday.

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