Friday, June 17, 2011

MESO: Mesoscale Discussion 1263

ACUS11 KWNS 171945
SWOMCD
SPC MCD 171945
ALZ000-MSZ000-172045-

MESOSCALE DISCUSSION 1263
NWS STORM PREDICTION CENTER NORMAN OK
0245 PM CDT FRI JUN 17 2011

AREAS AFFECTED...SERN MS THROUGH SRN AL

CONCERNING...SEVERE THUNDERSTORM WATCH 490...

VALID 171945Z - 172045Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 490
CONTINUES.

THREAT FOR ISOLATED DAMAGING WIND AND SOME HAIL WILL PERSIST NEXT
COUPLE HOURS ACROSS SRN AL INTO WRN GA. IT STILL APPEARS THAT A FEW
STORMS MAY ALSO DEVELOP FARTHER WEST INTO SERN MS.

LINE OF STORMS FROM W-CNTRL GA INTO S-CNTRL AL CONTINUES SEWD AND IS
IN PROCESS OF MERGING WITH SCATTERED ACTIVITY THAT DEVELOPED IN WARM
SECTOR AND ALONG SEA BREEZE BOUNDARIES. THESE CELL MERGERS WILL
RESULT IN BRIEF INTENSIFICATION OF STORMS WITH AUGMENTED DOWNBURST
POTENTIAL UNTIL THE WARM SECTOR IS OVERTURNED. SATELLITE DATA SHOW
CUMULUS INCREASING FARTHER WEST ALONG OUTFLOW BOUNDARY INTO SWRN AL
AND SERN MS WHERE CONVECTIVE INHIBITION CONTINUES TO WEAKEN AS
TEMPERATURES CLIMB INTO THE MID 90S. ANY STORMS THAT DEVELOP IN THIS
AREA WILL ALSO BECOME CAPABLE OF PRODUCING ISOLATED DOWNBURST WINDS
AND HAIL GIVEN THE FAVORABLE THERMODYNAMIC ENVIRONMENT.

..DIAL.. 06/17/2011

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

ATTN...WFO...BMX...MOB...JAN...

LAT...LON 32458900 32258827 32158748 32268644 32448574 32568523
32168504 31858557 31618707 31348847 31138937 31528969
32338946 32458900

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