Sunday, September 13, 2009

DAY3SVR: Nws Storm Prediction Center Norman Ok

ACUS03 KWNS 130723
SWODY3
SPC AC 130720

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0220 AM CDT SUN SEP 13 2009

VALID 151200Z - 161200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
RELATIVELY UNCHANGED PATTERN ALOFT IS FORECAST FOR DAY 3...AS THE
LOW OVER THE S CENTRAL U.S. CONTINUES DRIFTING SLOWLY EWD...AND
LIKEWISE WITH THE LOW OVER UT. OTHERWISE...ASIDE FROM SOME
AMPLIFICATION OF THE NERN U.S. TROUGH...LARGE-SCALE/LONGWAVE RIDGING
WILL PERSIST ACROSS THE CONUS.

AFTERNOON THUNDERSTORMS ARE ONCE AGAIN EXPECTED OVER THE
ROCKIES...AHEAD OF THE WEAK UPPER LOW DRIFTING ACROSS UT...AND
CONVECTION SHOULD REMAIN FAIRLY WIDESPREAD OVER THE SOUTHEAST
QUARTER OF THE COUNTRY. IN BOTH REGIONS...LIMITED SHEAR AND/OR
INSTABILITY SHOULD PRECLUDE APPRECIABLE SEVERE POTENTIAL.

..GOSS.. 09/13/2009

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