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12/8/09 FCST: LA/MS/AL

  • Thread starter Thread starter bwalker
  • Start date Start date

bwalker

The Southeast states are primed for a possible severe outbreak tonight.

From 18z sounding per JAN nws:

"As an overview, modifying for current conditions in NE LA/WC MS gives MLCAPE values between 800 and 1200 J/kg. 0-1 km SR helicity around 550 m2/s2 and impressive deep layer shear of 75 kt 0-6 km."

As well: Observed 700-500mb lapse rate on the 18Z Jackson, MS sounding was 8.2 c/km

BMX nws states:
"DEW POINTS CONTINUE TO RISE ACROSS CENTRAL ALABAMA SETTING THE STAGE FOR WHAT COULD TURN OUT TO BE A SIGNIFICANT NIGHTTIME
SEVERE WEATHER OUTBREAK ACROSS CENTRAL ALABAMA."

This is a definite heads up situation for those in the southeast.

bill walker, ph.d.
 
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