MESO: Mesoscale Discussion 0404

ACUS11 KWNS 260642
SWOMCD
SPC MCD 260642
FLZ000-260745-

MESOSCALE DISCUSSION 0404
NWS STORM PREDICTION CENTER NORMAN OK
0142 AM CDT MON APR 26 2010

AREAS AFFECTED...SRN FL

CONCERNING...TORNADO WATCH 107...

VALID 260642Z - 260745Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 107 CONTINUES.

THREAT FOR DAMAGING WIND AND AN ISOLATED TORNADO OR TWO CONTINUES
ACROSS PORTIONS OF SRN FL.

AS OF 0635Z SQUALL LINE EXTENDS FROM MELBOURNE SWWD TO VENICE.
BETTER ORGANIZATION REMAINS ALONG THE ERN FLANK OF THE LINE FROM
NEAR MELBOURNE TO S OF ARCADIA WHERE LEWP AND BOW STRUCTURES ARE
MOVING ESEWD AT 45 KT. A FEW DISCRETE CELLS ARE ALSO DEVELOPING S OF
THE LINE. THE SQUALL LINE WILL CONTINUE SEWD INTO A MODERATELY
UNSTABLE ATMOSPHERE. STRONG 500 MB FLOW ALONG THE SRN EXTENSION OF A
BROAD UPPER TROUGH OVER THE ERN U.S. WILL MAINTAIN VERTICAL SHEAR
SUFFICIENT FOR ORGANIZED STORM STRUCTURES. AN ISOLATED TORNADO OR
TWO REMAINS POSSIBLE WITH ANY EMBEDDED SUPERCELLS. TORNADO THREAT
WOULD BE GREATER IF THE MORE DISCRETE CELLS DEVELOPING SOUTH OF THE
LINE COULD BECOME BETTER ORGANIZED...BUT THIS ACTIVITY CURRENTLY
APPEARS TO BE STRUGGLING WITH A CAPPING INVERSION.

..DIAL.. 04/26/2010

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

ATTN...WFO...MFL...MLB...TBW...

LAT...LON 26748182 27208120 27748053 27378033 26758043 25908131
26298179 26748182

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