Subj : MESO: Mesoscale Discussion 0387
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Fri Mar 31 2023 03:04:56

ACUS11 KWNS 310304
SWOMCD
SPC MCD 310304=20
MIZ000-WIZ000-310330-

Mesoscale Discussion 0387
NWS Storm Prediction Center Norman OK
1004 PM CDT Thu Mar 30 2023

Areas affected...Northern Wisconsin and the Upper Michigan Peninsula

Concerning...Winter mixed precipitation=20

Valid 310304Z - 310330Z

SUMMARY...Mixed precipitation and snowfall will increase in coverage
and intensity through early Friday. Occasional snowfall rates up to=20
1" per hour are possible. Freezing rain accumulations up to 0.10"
are possible within the highlighted sub-region.

DISCUSSION...A band of moderate to heavy precipitation has been
ongoing this evening across central Wisconsin. Temperatures are
lingering around freezing with occasional change overs to unknown
and mixed precipitation occurring with wet-bulbing in heavier
showers just north and east of Green Bay. This line will continue to
shift northward across northern Wisconsin and the Upper Michigan
Peninsula through early Friday morning.=20

Across northern Wisconsin, temperatures are hovering near freezing
with reports of light snow on and off through the evening. As the
heavier precipitation shifts northward with ongoing warm air
advection, isentropic lift, and modest mid-level lapse rates, expect
snowfall rates to increase with occasional rates around 1"/hr. RAP
sounding analysis and HREF guidance suggest that precipitation will
largely remain snow through midnight. A transition to mixed
precipitation thereafter with potential for accumulating freezing
rain as warmer air is advected in around 850 mb. Ice accumulations
around 0.10" per hour will be possible across a narrow corridor.
Light freezing rain will be possible across the Upper Michigan
Peninsula early Friday morning, however accumulations should remain
light.

...Thornton/Edwards.. 03/31/2023

....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!-Q75MKFhCn_9tCiMprK7qR8v41XwcYXjvk1ykITgfBmEeshPqQfw1fkdSVJ6enQoZVcloXTj0=
kp0xbl_bs3klcZcf6I$  for graphic product...

ATTN...WFO...MQT...GRB...DLH...ARX...MPX...

LAT...LON   46899032 46818979 46678917 46598873 46418805 46178723
            46028685 45668674 45278699 44798765 44798799 45068951
            45199015 45399074 45829161 46379213 46829180 46979081
            46899032=20


=3D =3D =3D
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