ACUS11 KWNS 122357
SWOMCD
MESOSCALE DISCUSSION 0590
NWS STORM PREDICTION CENTER NORMAN OK
0656 PM CDT MON MAY 12 2014
AREAS AFFECTED...WI...NRN IL
CONCERNING...SEVERE THUNDERSTORM WATCH 152...
VALID 122356Z - 130100Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 152
CONTINUES.
SUMMARY...SCATTERED THUNDERSTORMS WILL CONTINUE ACROSS WW152 FOR
SEVERAL HOURS. FRONTAL SQUALL LINE SHOULD ADVANCE SLOWLY ACROSS IL
AT ROUGHLY 15-20KT. WW WILL BE LOCALLY EXTENDED TO INCLUDE CHICAGO
METRO.
DISCUSSION...PRE-FRONTAL WARM ADVECTION CONTINUES TO AID DISCRETE
THUNDERSTORM ACTIVITY ACROSS SRN WI AND NRN IL. STEEP LAPSE RATES
IN THE LOWEST 3KM EXTEND ACROSS IL TO NEAR THE WI BORDER AND NEW
TSTMS ARE DEVELOPING WITHIN THIS BUOYANT AIRMASS ALONG SRN FRINGE OF
WW. LARGE HAIL REMAINS THE MOST LIKELY SEVERE THREAT WITH THIS
PRE-FRONTAL CONVECTION AS IT SPREADS/DEVELOPS NEWD TOWARD SRN LAKE
MI.
WITH TIME...N-S FRONTAL SQUALL LINE WILL SPREAD SLOWLY ACROSS WRN IL
INTO WW152 LATER THIS EVENING.
..DARROW.. 05/12/2014
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...LOT...MKX...DVN...ARX...
LAT...LON 43579065 43558776 42098777 42139067 43579065
����
http://goo.gl/yRQzzy
------------------------------------------------
(c) Copyleft 2014 WxNotify. All wrongs reserved.
