Valid 200100Z – 201200Z
…NO SEVERE THUNDERSTORM AREAS FORECAST…
Severe thunderstorms are not expected through tonight.
…Texas into the lower Mississippi Valley region…
Shallow convection will persist within plume of subtropical moisture
along an east-west oriented baroclinic zone from TX into the lower
MS Valley tonight. Weak progressive vorticity maxima embedded within
a zonal flow regime will maintain pockets of enhanced ascent.
Isolated lightning flashes have occurred within this zone, but
coverage is expected remain sparse. A somewhat greater coverage of
thunderstorms might occur late tonight from southeast TX into LA.
Here, weak theta-e advection along a strengthening southerly
low-level jet will contribute to a corridor of enhanced ascent and