Sunday, August 26, 2007

MESO: Mesoscale Discussion 1899

ACUS11 KWNS 270325
SWOMCD
SPC MCD 270325
MNZ000-NDZ000-270430-

MESOSCALE DISCUSSION 1899
NWS STORM PREDICTION CENTER NORMAN OK
1025 PM CDT SUN AUG 26 2007

AREAS AFFECTED...ERN ND THROUGH N CNTRL MN

CONCERNING...TORNADO WATCH 653...

VALID 270325Z - 270430Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 653 CONTINUES.

TORNADO WATCH 653 MAY NEED TO BE REPLACED BY A SEVERE THUNDERSTORM
WATCH PRIOR TO ITS EXPIRATION TIME OF 04Z.

SCATTERED STORMS CONTINUE FROM EXTREME NWRN MN SWWD THROUGH SERN ND.
SOME OF THIS ACTIVITY REMAINS SEVERE. OVERALL TREND HAS BEEN FOR
MOST STORMS TO BEGIN TO LOSE SOME OF THEIR SUPERCELL CHARACTERISTICS
AND WEAKEN...ESPECIALLY OVER SERN ND. STRONGEST SUPERCELL STORM
REMAINS OVER SRN GRAND FORKS COUNTY NEAR A COLD FRONT/OUTFLOW
BOUNDARY INTERSECTION. THIS STORM MAY STILL BE CAPABLE OF PRODUCING
VERY LARGE HAIL AND ISOLATED TORNADOES AS IT MOVES SWD INTO STEELE
COUNTY. THE ATMOSPHERE REMAINS VERY UNSTABLE...BUT INCREASING
CONVECTIVE INHIBITION TO SURFACE BASED PARCELS ASSOCIATED WITH
NOCTURNAL COOLING SUGGEST MOST STORMS MAY BEGIN TO STRUGGLE.
HOWEVER...POTENTIAL EXISTS FOR ADDITIONAL STORMS TO DEVELOP ALONG
COLD FRONT AS IT ADVANCES SEWD. PRIMARY THREAT SHOULD TRANSITION TO
DAMAGING WIND AND HAIL.

.DIAL.. 08/27/2007

..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...DLH...FGF...BIS...

46349972 47409777 48599557 48339298 47509400 46119801

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