577
ACUS11 KWNS 021735
SWOMCD
SPC MCD 021734
MIZ000-WIZ000-022130-
MESOSCALE DISCUSSION 0333
NWS STORM PREDICTION CENTER NORMAN OK
1234 PM CDT THU APR 02 2026
AREAS AFFECTED...MUCH OF CENTRAL AND EASTERN UPPER
MICHIGAN...ADJACENT NORTHEASTERN WISCONSIN AND PORTIONS OF NORTHERN
LOWER MICHIGAN
CONCERNING...FREEZING RAIN
VALID 021734Z - 022130Z
SUMMARY...LIGHT TO MODERATE FREEZING RAIN IS LIKELY TO CONTINUE TO
DEVELOP AND OVERSPREAD THE REGION THROUGH 5-7 PM EDT, WITH PRIMARY
ACCRUAL ON ELEVATED SURFACES AND VEGETATION.
DISCUSSION...AS A STILL SUB-1000 MB SURFACE CYCLONE CONTINUES TO
MIGRATE EAST-NORTHEASTWARD INTO AND THROUGH PORTIONS OF
SOUTHERN/EASTERN IOWA THIS AFTERNOON, A FAIRLY SHARP WARM FRONTAL
ZONE TO ITS EAST-NORTHEAST IS FORECAST TO CONTINUE TO SURGE
NORTHWARD ACROSS WISCONSIN AND MICHIGAN. THIS IS LIKELY TO OCCUR
NEAR THE NOSE OF A 40-50 KT SOUTHERLY 850 MB JET, WITH STRONG
LOWER/MID-TROPOSPHERIC WARM ADVECTION AND FRONTOGENETIC FORCING
MAINTAINING LIGHT AND DEVELOPING EMBEDDED BANDS OF MODERATE
PRECIPITATION.
WHILE SURFACE TEMPERATURES NEAR OR JUST BELOW 30F ARE LIKELY TO ALSO
BE MAINTAINED AT LEAST INTO LATE AFTERNOON OR EARLY EVENING, MODEL
FORECAST SOUNDINGS INDICATE NOTABLE WARMING ABOVE FREEZING IN A
DEEPENING LAYER ABOVE THE SURFACE, NORTHWARD THROUGH MUCH OF CENTRAL
AND EASTERN UPPER MICHIGAN BY 21-23Z. AS THIS OCCURS, PRECIPITATION
RATES MAY SUPPORT AT LEAST OCCASIONAL HOURLY FREEZING RAIN ACCRUAL
IN EXCESS OF .10 INCHES, PERHAPS UP TO .25 INCHES.
..KERR.. 04/02/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...APX...MQT...GRB...
LAT...LON 45178681 44948770 45388892 46308828 46828705 46538410
45548285 44678265 44718363 45378519 45178681
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