MD 2026 CONCERNING FREEZING RAIN FOR PORTIONS OF NORTHERN WISCONSIN AND UPPER MICHIGAN
Mesoscale Discussion 2026
NWS Storm Prediction Center Norman OK
1202 AM CST Wed Dec 14 2022
Areas affected...portions of northern Wisconsin and upper Michigan
Concerning...Freezing rain
Valid 140602Z - 141100Z
SUMMARY...Periods of light to moderate freezing rain and mixed
precipitation will likely continue overnight with total ice
accumulation rates of 0.05 in/hr A transition to snow may occur
later overnight.
DISCUSSION...To the east of a deep surface and upper-level cyclone
over the central and northern Plains, a broad area of wintry
precipitation was ongoing across portions of the upper Midwest.
Additional stratiform precipitation should develop and expand
northward with strong mid-level warm advection occurring. Mid-level
warming should continue overnight as the cyclones warm conveyor
shifts northward into WI and MN. A prominent 1-2C warm nose will
favor freezing rain and mixed precipitation types. Some hi-res
models show heavier shower/weak convective elements may develop and
support locally heavier ice accumulations as the maximum in dynamic
lift and any weak slantwise/upright instability are released. Total
ice accumulations of 0.05 to 0.1 in/hr inches are possible over the
next several hours. A transition to mixed p-type or snow will be
possible after 10z as cooler air shifts eastward.
..Lyons.. 12/14/2022
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...MQT...GRB...DLH...ARX...MPX...
LAT...LON 46548938 46398868 46228847 46008843 45608849 45138865
44888919 44948936 45029009 45089058 45369138 46129237
46839273 47099225 46529038 46548938
