SWODY1
SPC AC 031626
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1026 AM CST THU MAR 03 2011
VALID 031630Z - 041200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
NO CHANGES TO PREVIOUS OUTLOOK. A MIDLEVEL SHORTWAVE TROUGH OVER
NV/UT WILL PROGRESS EWD TO THE CENTRAL HIGH PLAINS TONIGHT...WHILE
AN ASSOCIATED LEE CYCLONE FORMS ACROSS SE CO BY THIS EVENING...AND
THEN THE REMNANT CYCLONE WILL MOVE SEWD TOWARD WRN OK OVERNIGHT.
STEEP LAPSE RATES AND SUFFICIENT LOW-MIDLEVEL MOISTURE /PER THE 12Z
SLC AND GJT SOUNDINGS/ WILL SUPPORT A CONTINUATION THROUGH THE DAY
OF THE ONGOING ISOLATED THUNDERSTORMS FROM UT INTO CO. FARTHER
E...AN INCREASE IN MOISTURE NEAR AND JUST ABOVE THE SURFACE IS
EXPECTED IN CONJUNCTION WITH A STRENGTHENING LLJ FROM THE LOWER MS
VALLEY INTO THE OH VALLEY BY TONIGHT. THE MOISTENING COULD RESULT
IN SUFFICIENT INSTABILITY FOR ISOLATED THUNDERSTORMS ROOTED AROUND
850 MB LATE IN THE PERIOD...SUPPORTED BY WEAK LOW-LEVEL WAA.
..THOMPSON/SMITH.. 03/03/2011
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