Monday, January 5, 2009

Severe Weather Tuesday Night?

A pretty dynamic trough will be swinging through the Southeast tomorrow night which could lead to some severe storms. Instability will be marginal at best but shear will be relatively high. The SPC has outlined a Slight Risk of severe weather for most of S AL and parts of GA and MS. Boundary layer conditions will need to be monitored throughout the day tomorrow. The main threat should come from bow echoes and straight line winds though I can imagine that we will see some tornado warnings as well. If the sun breaks out tomorrow therefore increasing instability the threat might be more significant, especially for S AL. If I had to pick a spot to be tomorrow to see severe weather it would be Demopolis, AL and South.

**Images courtesy of***

850 mb Winds

Surface Temperature

Surface Dewpoint


0-1 km Helicity
Energy Helicity Index EHI

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