Tuesday, July 13, 2010

Slight Risk For Severe Weather in North Alabama...


Excerpt from SPC Outlook...
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1257 AM CDT TUE JUL 13 2010

VALID 131200Z - 141200Z

...THERE IS A SLGT RISK OF SVR TSTMS FROM THE TN VALLEY INTO THE SRN
APPALACHIANS REGION...

...TN VALLEY/SRN APPALACHIANS REGION...
30-40 KT WLY MID LEVEL FLOW IS EXPECTED TO SPREAD ACROSS THE TN
VALLEY TO SRN APPALACHIANS REGION TO VA/CAROLINAS THIS AFTERNOON AND
EARLY EVENING. DESPITE WEAK MIDLEVEL LAPSE RATES...SURFACE HEATING
WITHIN A RATHER MOIST AIR MASS RESIDING ACROSS THE TN VALLEY AND IN
LEE OF THE SRN/CENTRAL APPALACHIANS IS EXPECTED TO SUPPORT MODERATE
INSTABILITY BY AFTERNOON. TSTMS PRODUCING MAINLY STRONG WIND GUSTS
SHOULD POSE THE GREATEST THREAT ALONG THE CORRIDOR OF STRONGER
MIDLEVEL WLY MIDLEVEL FLOW.

..PETERS/GRAMS.. 07/13/2010

No comments: