204
ACUS11 KWNS 130706
SWOMCD
SPC MCD 130706
MIZ000-WIZ000-131100-
MESOSCALE DISCUSSION 0236
NWS STORM PREDICTION CENTER NORMAN OK
0206 AM CDT FRI MAR 13 2026
AREAS AFFECTED...PARTS OF UPPER MI...NORTHERN LOWER MI...AND FAR
NORTHEASTERN WI
CONCERNING...HEAVY SNOW
VALID 130706Z - 131100Z
SUMMARY...HEAVY SNOW WITH RATES AROUND 1 INCH PER HOUR (LOCALLY
HIGHER) ARE EXPECTED THROUGH THE EARLY MORNING.
DISCUSSION...WITHIN THE BASE OF A COMPACT SHORTWAVE TROUGH MOVING
EASTWARD ACROSS MN, WATER-VAPOR IMAGERY AND VWP DATA INDICATE A
ROBUST JET STREAK (AROUND 100 KT AT 6 KM PER VWP DATA) IMPINGING ON
WI. IN RESPONSE, A NORTHWEST/SOUTHEAST-ORIENTED FRONTOGENETIC ZONE
IS EVOLVING SLOWLY NORTHEASTWARD ACROSS WI, UPPER MI, AND NORTHERN
LOWER MI. FORCING FOR ASCENT IS BEING MAXIMIZED ALONG/IMMEDIATELY
NORTH OF THIS ZONE, WHERE COLD/DEEPLY SATURATED PROFILES AND THE
FOCUSED ASCENT ARE FAVORING A BAND OF MODERATE TO HEAVY SNOW. THE
STRONG/FOCUSED ASCENT WITHIN A DEEP/SATURATED DGZ WILL CONTINUE TO
FAVOR HEAVY SNOWFALL RATES AROUND 1 INCH PER HOUR, THOUGH LOCALLY
HIGHER RATES TO AROUND 2 INCHES PER HOUR ARE POSSIBLE UNDER THE CORE
OF THE BAND TRANSLATING NORTHEASTWARD ACROSS UPPER MI INTO NORTHERN
LOWER MI THROUGH THE EARLY MORNING HOURS.
..WEINMAN.. 03/13/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...DTX...APX...GRR...MQT...GRB...
LAT...LON 44318652 45258770 46658930 47168927 47518865 47538779
47038636 46598548 45838455 45048402 44518375 43928393
43598463 43778565 44318652
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