SWODY3
SPC AC 160659
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0159 AM CDT TUE MAR 16 2010
VALID 181200Z - 191200Z
...SYNOPSIS...
WITHIN A STRONGER BELT OF WESTERLIES EMANATING FROM THE MID LATITUDE
PACIFIC...MODELS CONTINUE TO INDICATE THAT SIGNIFICANT AMPLIFICATION
WILL OCCUR DURING THIS FORECAST PERIOD. AS AN UPPER RIDGE SHARPENS
JUST WEST OF THE PACIFIC COAST...AN INTENSIFYING SHORT WAVE TROUGH
IS PROGGED TO DIG SOUTH OF THE CANADIAN ROCKIES THROUGH THE NORTHERN
INTERMOUNTAIN REGION AND GREAT BASIN BY LATE THURSDAY NIGHT. AS
THIS OCCURS...DOWNSTREAM SHORT WAVE RIDGING APPEARS LIKELY TO SHIFT
FROM THE CENTRAL/SOUTHERN PLAINS THROUGH THE WESTERN GULF COAST
REGION AND LOWER HALF OF THE MISSISSIPPI VALLEY...WHILE UPPER
TROUGHING CONTINUES TO DEVELOP EASTWARD ACROSS THE SOUTHEASTERN U.S.
INTO THE ATLANTIC. THE LATTER FEATURE IS NOT EXPECTED TO CLEAR THE
SOUTH ATLANTIC SEABOARD PRIOR TO 12Z FRIDAY...AND SURFACE RIDGING
SHOULD REMAIN PROMINENT OVER MUCH OF THE GULF OF MEXICO. LITTLE
POTENTIAL FOR SUBSTANTIVE LOW-LEVEL MOISTENING APPEARS TO EXIST
THURSDAY...EITHER EAST OF THE ROCKIES...OR ACROSS THE INTERMOUNTAIN
WEST. THUS...WHILE WIDELY SCATTERED THUNDERSTORMS ARE POSSIBLE
ACROSS PARTS OF THE GREAT BASIN AND CENTRAL ROCKIES IN RESPONSE TO
DESTABILIZATION ASSOCIATED WITH COOLING ALOFT AND DAYTIME HEATING
...THE RISK FOR SEVERE STORMS SEEMS NEGLIGIBLE.
..KERR.. 03/16/2010
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