SPC AC 260654
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1254 AM CST SUN NOV 26 2006
VALID 281200Z - 291200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
DYNAMIC...LONG WAVE TROUGH WILL CONTINUE TO SLOWLY PROGRESS EWD
THROUGH THE INTERMOUNTAIN W DURING THE DAY THREE PERIOD. EMBEDDED
SHORT WAVE TROUGH INITIALLY OVER THE NRN AND CNTRL PLAINS WILL LIFT
NEWD THROUGH THE PERIOD WITH UPPER LOW EVENTUALLY EVOLVING OVER THE
NRN RED RIVER VALLEY INTO MANITOBA. MEANWHILE...UPSTREAM JET STREAK
FROM THE PACIFIC NW COAST INTO THE GREAT BASIN WILL DIG SEWD WITH
STRONG HEIGHT FALLS DEVELOPING THROUGH THE FOUR CORNERS REGION.
IN THE LOW-LEVELS...SURFACE LOW OVER SD WILL WEAKEN AS IT DEVELOPS
NEWD INTO WRN ONTARIO WHILE TRAILING ARCTIC COLD FRONT SURGES SWD
THROUGH THE NRN AND CNTRL PLAINS.
...UPPER GREAT LAKES INTO THE MIDWEST AND CNTRL LOW PLAINS...
CLUSTERS OF ELEVATED TSTMS ARE EXPECTED TO BE ONGOING TUESDAY
MORNING FROM SRN MN/IA SWD INTO ERN KS/WRN MO WITHIN ZONE OF STRONG
DEEP LAYER FORCING AHEAD OF SHORT WAVE TROUGH LIFTING NEWD THROUGH
THE REGION. A FEW OF THE MORE INTENSE STORMS WILL BE CAPABLE OF
SOME MARGINALLY SEVERE HAIL EARLY IN THE PERIOD WITHIN ENVIRONMENT
OF WEAK ELEVATED INSTABILITY. CURRENTLY...THIS THREAT APPEARS TOO
MINIMAL TO WARRANT SEVERE PROBABILITIES. THESE STORMS SHOULD TEND
TO WEAKEN THROUGH THE DAY AS THEY BECOME PROGRESSIVELY MORE ELEVATED
INTO INCREASINGLY STABLE ENVIRONMENT OVER THE UPPER GREAT LAKES.
OTHER MORE SURFACE BASED STORMS WILL BE POSSIBLE TUESDAY AFTERNOON
INTO TUESDAY NIGHT ALONG STRONG COLD FRONT FROM PORTIONS OF
CNTRL/ERN IA SWWD INTO ERN KS. IT APPEARS THAT INSTABILITY WILL
REMAIN LIMITED AND NO SEVERE STORMS ARE FORECAST ATTM.
..MEAD.. 11/26/2006
CLICK TO GET WUUS03 PTSDY3 PRODUCT
NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 1100Z
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