[MCD] SWOMCD

[Mesoscale Convective Discussions]

ACUS11 KWNS 121811
SWOMCD
SPC MCD 121810 
IAZ000-121945-

MESOSCALE DISCUSSION 0257
NWS STORM PREDICTION CENTER NORMAN OK
1210 PM CST SUN MAR 12 2006

AREAS AFFECTED...SOUTHERN/CENTRAL IA

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 121810Z - 121945Z

SEVERE THREAT MAY INCREASE THROUGH EARLY AFTERNOON ACROSS
SOUTHERN/CENTRAL IA...WITH PRIMARY HAZARD OF LARGE HAIL. WILL
MONITOR FOR A POSSIBLE WATCH.

STRONG/SEVERE STORMS ONGOING AT MIDDAY ACROSS MUCH OF NORTHERN
MO...WITH THIS ACTIVITY LIKELY TO CONTINUE TO SPREAD NORTHEASTWARD
WITH ADDITIONAL DEVELOPMENT ACROSS SOUTHERN/CENTRAL IA THROUGH EARLY
AFTERNOON. CURRENTLY WELL NORTH OF SURFACE WARM FRONT ACROSS
MO...STRONG LOW LEVEL JET/WARM CONVEYOR WILL CONTINUE TO TRANSPORT
AN ELEVATED UNSTABLE AIRMASS NORTHWARD ABOVE A COOL BOUNDARY LAYER.
STRONG CLOUD BEARING SHEAR AND STEEP LAPSE RATES WITH POTENTIAL FOR
750-1000 J/KG MUCAPE WILL PROMOTE A LARGE HAIL THREAT.

..GUYER.. 03/12/2006

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

ATTN...WFO...DVN...DMX...OAX...

40669370 40769555 41369566 42109339 41869158 40789129 

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