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Mesoscale Discussion 223 |
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MESOSCALE DISCUSSION 0223
NWS STORM PREDICTION CENTER NORMAN OK
1030 PM CST WED FEB 28 2007
AREAS AFFECTED...NERN MO / FAR SERN IA / W-CNTRL IL
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 010430Z - 010600Z
MARGINALLY SEVERE HAIL WILL BE POSSIBLE WITH MORE INTENSE STORMS
DEVELOPING ACROSS DISCUSSION AREA. A WW IS NOT ANTICIPATED ATTM.
A CLUSTER OF TSTMS HAVE RECENTLY DEVELOPED OVER FAR NERN MO /SE IRK/
WITHIN ZONE OF STRONG LOW-LEVEL WAA OCCURRING N OF SURFACE WARM
FRONT WHICH EXTENDED FROM JUST N OF SZL TO NEAR OR JUST N OF STL AS
OF 04Z. RUC FORECAST SOUNDINGS SUGGEST THAT THESE STORMS ARE LIKELY
ROOTED IN AN ELEVATED MOIST LAYER ROUGHLY AROUND 900-850 MB WHICH IS
CONTRIBUTING TO MUCAPES OF 600-800 J/KG.
EXPECT THIS ACTIVITY TO INCREASE IN COVERAGE AS IT MOVES NEWD INTO
PORTIONS OF FAR SERN IA AND W-CNTRL MO OVERNIGHT. SOME MARGINALLY
SEVERE HAIL MAY ACCOMPANY THE MORE INTENSE STORMS...HOWEVER IT
APPEARS THE WEAK INSTABILITY WILL PRECLUDE A MORE SUBSTANTIAL SEVERE
THREAT.
..MEAD.. 03/01/2007
ATTN...WFO...ILX...LSX...DVN...
39839227 40179227 40569197 40829160 40899113 40919036
40519009 39979011 39429052 39189084 39019164 39139207
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