The NWS offices in Wisconsin are busy issuing out Severe Thunderstorm Warnings as we speak. The Severe Weather Threat will intensify over the coming hours and expect a Watch to be issued by 10:30am. Right now the main threat appears to be Wind, Hail, Heavy Rains and Hail. Although Isolated Tornadoes are not out of the question with some of these storms. At this point a Tornado outbreak is not expected. Although the storms are currently more in the Central and Northern Parts of Wisconsin this system will spread Eastward and Southward over the coming hours.
Wednesday, July 2, 2008
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MESOSCALE DISCUSSION 1662
NWS STORM PREDICTION CENTER NORMAN OK
0942 AM CDT WED JUL 02 2008
AREAS AFFECTED...EASTERN IA/NORTHERN IL/SOUTHERN AND EASTERN WI INTO
LOWER MI/NORTHWEST IND
CONCERNING...SEVERE POTENTIAL...WATCH LIKELY
VALID 021442Z - 021645Z
SEVERE TSTM THREAT IS EXPECTED TO INCREASE/BECOME MORE WIDESPREAD
THROUGH EARLY AFTERNOON ACROSS PORTIONS OF SOUTHERN/EASTERN WI AND
EASTERN IA/NORTHERN IL...INTO LOWER MI AND EVENTUALLY NORTHWEST
INDIANA. CONTINUED INCREASING CONVECTIVE TRENDS COULD PROMPT A WATCH
WITHIN THE HOUR FOR PORTIONS OF THE REGION.
A FEW STRONG/SEVERE TSTMS CONTINUE TO INCREASE ALONG/AHEAD OF A COLD
FRONT ACROSS SOUTHERN/EAST CENTRAL WI AT MID MORNING. WITH ONGOING
HEIGHT FALLS/INCREASING FORCING FOR ASCENT IN ASSOCIATION WITH A
POTENT EAST-SOUTHEAST MOVING SHORTWAVE TROUGH OVER ONTARIO...AND A
SOUTHWESTERLY LOW LEVEL MOISTURE TRANSPORT REGIME...AN UPSWING IN
TSTM COVERAGE/INTENSITY IS EXPECTED THROUGH EARLY AFTERNOON
ALONG/AHEAD OF THE COLD FRONT. WHILE THIS INITIAL MORNING ACTIVITY
IS LIKELY ELEVATED ABOVE A SHALLOW COOL/RELATIVELY STABLE
LAYER...ADJUSTED 12Z OBSERVED RAOBS/RUC SOUNDINGS SUGGEST THAT TSTMS
WILL BECOME INCREASINGLY SURFACE BASED AS TEMPERATURES WARM THROUGH
THE 80-85 F DEGREE RANGE. ALONG THESE LINES...A 42 KT CONVECTIVE
GUST WAS RECENTLY MEASURED AT VOLK FIELD/CAMP DOUGLAS WI...AND A
DAMAGING WIND THREAT COULD ALREADY BE INCREASING. INCREASINGLY
STRONG WIND PROFILES AND MODERATE TO STRONG INSTABILITY WILL SUPPORT
BOTH SUPERCELLS AND BOWING LINES CAPABLE OF SEVERE HAIL/DAMAGING
WINDS.
..GUYER.. 07/02/2008
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