Tuesday, July 3, 2007

MESO: Mesoscale Discussion 1371

ACUS11 KWNS 032250
SWOMCD
SPC MCD 032250
MIZ000-WIZ000-IAZ000-MNZ000-032345-

MESOSCALE DISCUSSION 1371
NWS STORM PREDICTION CENTER NORMAN OK
0550 PM CDT TUE JUL 03 2007

AREAS AFFECTED...MN...WI

CONCERNING...TORNADO WATCH 477...

VALID 032250Z - 032345Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 477 CONTINUES.

NUMEROUS INTENSE STORMS AND WIDELY SCATTERED SUPERCELLS HAVE
DEVELOPED IN THE WAKE OF EARLIER MCS AND NOW EXTEND FROM IA/MN
BORDER NWD ACROSS SERN AND CNTRL MN. THESE STORMS WILL BE CAPABLE OF
PRODUCING LARGE HAIL...IN ADDITION TO TORNADOES.

STRONG INSTABILITY HAS SPREAD NEWD ACROSS ALL OF SERN MN THIS
EVENING AND ROBUST STORMS APPEAR TO BE INCREASING INVOF WAKE
LOW...AND ALONG ASSOCIATED TROUGHS EXTENDING OUT FROM THE LOW.
IN ADDITION...OUTFLOW BOUNDARY FROM EARLIER MCS EXTENDS NWWD ACROSS
EXTREME SERN MN AND APPEARS TO INTERSECT WAKE LOW OVER GOODHUE
COUNTY. THIS IS WHERE A PARTICULARLY INTENSE CELL AND DEVELOPING
MESOCYCLONE ARE CURRENTLY LOCATED. ENHANCED LOW LEVEL SHEAR AND LOW
LFC IN ADVANCE OF THIS CELL...AS WELL AS OTHER DISCRETE CONVECTION
ALONG AND EAST OF THE OUTFLOW BOUNDARY...COULD FAVOR A TORNADOES AT
ANY TIME.

.CARBIN.. 07/03/2007

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

ATTN...WFO...MQT...GRB...MKX...DLH...ARX...MPX...FSD...

45859450 46739425 47039347 46839308 46729221 46909088
46449012 45699004 45119017 44319033 44248962 43588968
43429090 43509259 43509490 44129485 44129517 44259513
44289492 44559457

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