Monday, November 21, 2011

Tuesday Trouble then Saturday????

EHI Midnight Tuesday

NAM SB Cape Midnight Tuesday

500mb Vortmax Saturday 7am

Warm is the word. It is very very warm for the end of November as most areas will be between 73-78 degrees across the state and some areas might even see 80F if the sun comes out. The SPC maintains a slight risk of severe weather for areas to our west including Texas, South Oklahoma, and SW Arkansas.

A strong upper trough and surface front approaches and showers and storms will increase tomorrow afternoon and tomorrow night, and much of Alabama is in a slight risk for that reason. The main window for severe weather in Alabama now looks as if it will come from about 3:00 p.m. tomorrow until 3:00 a.m. Wednesday. A tornado threat does not seem overly high with somewhat marginal SRH values ,but a few isolated tornadoes are certainly possible as SRH values will certainly be high enough to support rotating updrafts during the late afternoon and evening hours with any discreet cells that form ahead of the squall line over North and Central Alabama. The main severe weather threat looks to come from damaging winds with bowing segments along the line tomorrow night as it moves through. This looks like the setup last Wednesday when the few tornadoes did hit a few areas of the state, but unlike then when it was just Central and Southern Alabama being effected this one will affect the whole area. The system moves out and Thanksgiving looks great as well as Black Friday, but then comes Saturday. The system on Saturday looks stronger and more robust than the one on Tuesday right now so we will have to watch it close.

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