SWOMCD
SPC MCD 102302
MIZ000-WIZ000-110030-
MESOSCALE DISCUSSION 0399
NWS STORM PREDICTION CENTER NORMAN OK
0602 PM CDT SUN APR 10 2011
AREAS AFFECTED...WI AND THE UPPER PENINSULA OF MICHIGAN
CONCERNING...TORNADO WATCH 120...
VALID 102302Z - 110030Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 120 CONTINUES.
THE REMAINDER OF THE WESTERN AND CENTRAL UPPER PENINSULA OF MICHIGAN
MAY NEED TO BE ADDED TO WW 120 WITHIN THE NEXT HOUR OR TWO.
SCATTERED VIGOROUS STORMS ARE ONGOING...FROM NEAR THE DEEP SURFACE
CYCLONE CENTER MIGRATING ACROSS NORTHWEST WISCONSIN...SOUTHWARD TO
THE VICINITY OF A 90 KT SOUTHWESTERLY 500 MB JET AXIS ACROSS
SOUTHWEST WISCONSIN. AN EMBEDDED SPEED MAXIMUM IS IN THE PROCESS OF
NOSING ACROSS THE UPPER MISSISSIPPI VALLEY TOWARD THE UPPER GREAT
LAKES REGION...WITH A REGION OF ENHANCED UPPER DIVERGENCE
CONTRIBUTING TO CONVECTIVE DEVELOPMENT. THIS ACTIVITY APPEARS
LIKELY TO GENERALLY MAINTAIN ITS DISCRETE NATURE AT LEAST ANOTHER
COUPLE OF HOURS AS UPPER FORCING SPREADS ACROSS NORTHEASTERN
WISCONSIN AND THE WESTERN UPPER PENINSULA OF MICHIGAN THROUGH
01-02Z. IN THE PRESENCE OF MODERATELY STRONG MIXED LAYER CAPE
/1000-1500 J PER KG/ AND STRONG DEEP LAYER SHEAR...AS WELL AS
PERHAPS ENLARGING LOW-LEVEL HODOGRAPHS...TORNADIC POTENTIAL COULD
STILL INCREASE EARLY THIS EVENING. LARGE HAIL WILL CONTINUE
POSSIBLE...ALONG WITH LOCALLY DAMAGING WIND GUSTS.
..KERR.. 04/10/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...APX...MQT...GRB...MKX...DLH...ARX...
LAT...LON 43119050 43899032 44928981 45648985 46499021 47238919
47448841 47158672 46388561 45588633 43848769 43098901
42919035 43119050
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