
SPC AC 260057
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0757 PM CDT TUE MAY 25 2010
VALID 260100Z - 261200Z
...THERE IS A SLGT RISK OF SVR TSTMS ACROSS PORTIONS OF THE CENTRAL
AND SRN HIGH PLAINS...
...CENTRAL AND SRN HIGH PLAINS...
SEVERE STRONG/LOCALLY-SEVERE STORMS ARE ONGOING FROM SERN CO/WRN KS
SWD INTO ERN NM AND ADJACENT PARTS OF THE TX PANHANDLE/S
PLAINS...WITHIN MOIST/MODERATELY UNSTABLE AIRMASS ACROSS THIS
REGION. WHILE MID-LEVEL SWLYS SHOULD DIMINISH A BIT
OVERNIGHT...SOME INCREASE IN SELY LOW-LEVEL FLOW MAY OFFSET
THIS...MAINTAINING SHEAR SUFFICIENT FOR PERSISTENT/ORGANIZED STORMS.
SEVERAL SUPERCELL STORMS ACROSS WRN KS AND ADJACENT SERN CO REMAIN
CAPABLE OF PRODUCING ISOLATED TORNADOES...AS WELL AS LARGE HAIL AND
DAMAGING WINDS. THIS THREAT IS ALSO ONGOING ACROSS E CENTRAL AND
SERN NM AND INTO THE TX SOUTH PLAINS REGION -- AND SHOULD CONTINUE
THROUGH THE EVENING AND POSSIBLY INTO THE OVERNIGHT HOURS -- WITH
STORMS LIKELY TO BE MAINTAINED BY THE INCREASE IN LOW-LEVEL WIND
FIELD.
...UPPER MS/MID MO VALLEYS AND VICINITY...
MODEST INSTABILITY AND GENERALLY WEAK SHEAR ARE INDICATED ACROSS
THIS REGION INVOF WEAK/LINGERING SURFACE FRONT...WITH ONGOING STORMS
NOW BELOW SEVERE LEVELS. STILL...A LOCALLY STRONGER GUST OR
MARGINAL HAIL EVENT CANNOT BE RULED OUT THIS EVENING WITH A STRONGER
STORM PULSE. OVERALL HOWEVER...NO APPRECIABLE RAMP-UP IN SEVERE
POTENTIAL IS EXPECTED.
...PARTS OF MAINE...
A SECOND ROUND OF SHOWERS AND THUNDERSTORMS ARE MOVING SEWD ACROSS
THE ST. LAWRENCE VALLEY AND INTO NWRN ME ATTM. WHILE THE CONVECTION
IS MOVING INTO A LESS UNSTABLE AIRMASS NOW IN PLACE ACROSS
ME...BRIEF GUSTY WINDS AND SMALL HAIL MAY ACCOMPANY STRONGER CELLS
THIS EVENING.
..GOSS.. 05/26/2010
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