BBS:      TELESC.NET.BR
Assunto:  HVYSNOW: Probabilistic Heavy Snow And Icing Discussion
De:       COD Weather Processor
Data:     Thu, 26 Mar 2026 07:16:57 +0000
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FOUS11 KWBC 260716
QPFHSD

Probabilistic Heavy Snow and Icing Discussion
NWS Weather Prediction Center College Park MD
316 AM EDT Thu Mar 26 2026

Valid 12Z Thu Mar 26 2026 - 12Z Sun Mar 29 2026

...Northern New England...
Day 1...

A weak area of low pressure and a trailing front will bring some
light snow to northern New England. Amounts will be light and
generally limited to the higher elevations due to marginal
temperatures. WPC probabilities for at least 4 inches of snow are
low, generally 10-20%, above 2000-3000ft or so.


...Upper Midwest and western Great Lakes...
Days 1-3...

A frontal boundary across the region has prompted some light icing
overnight that will continue this morning after 12Z, particularly
over northeastern WI, southern U.P. of Michigan, and into northern
Lower Michigan. WPC probabilities for at least 0.01" icing are
moderate (40-70%) in these regions, but are below 5% for amounts
higher than a tenth of an inch.

Colder air behind this system will move across the Great Lakes
Friday afternoon into Saturday, coincident with a mid-level
shortwave. With 850mb temperatures dipping to below -15C, some lake
enhanced/effect snow is forecast for parts of the U.P. into
northern Wisconsin. Another weak shortwave Saturday evening will
bring another light dusting to an inch of snow to the U.P. of
Michigan. Amounts even across all three days should be light (1-2"
or so), and WPC probabilities for at least 4 inches are only 10-20%
for the period.



The probability of significant icing across the CONUS for days 1-3
is less than 10%.


Fracasso

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