Alert archive / Wisconsin / Winter Storm Warnings in 2025

Winter Storm Warning 11, NWS Green Bay, WI

December 27, 202522 counties in Wisconsin

NWS Green Bay, WI issued this winter storm warning at Dec 27, 2025, 2:14 PM CST for 22 counties in Wisconsin. It took effect at Dec 28, 2025, 3:00 PM CST. It was in force for 24 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 27, 2025, 2:14 PM CST (20:14 UTC)
In effect from
Dec 28, 2025, 3:00 PM CST
Expired
Dec 29, 2025, 2:56 PM CST
In force
24 hr
Issued by
NWS Green Bay, WI
All 22 counties

Brown County, WI, Calumet County, WI, Door County, WI, Florence County, WI, Forest County, WI, Kewaunee County, WI, Langlade County, WI, Lincoln County, WI, Manitowoc County, WI, Marathon County, WI, Marinette County, WI, Menominee County, WI, Oconto County, WI, Oneida County, WI, Outagamie County, WI, Portage County, WI, Shawano County, WI, Vilas County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 63 km from the middle of the area, began a volume at 20:19 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Green Bay, WI wrote its last area forecast discussion before this winter storm warning went out at Dec 27, 5:52 AM CST, 8 hours 22 minutes earlier.

Area forecast discussion, Dec 27, 5:52 AM CST, 8 hours 22 minutes before
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Hazardous weather outlook, Dec 27, 4:55 AM CST, 9 hours 19 minutes before
Hazardous Weather Outlook
National Weather Service Green Bay WI
455 AM CST Sat Dec 27 2025

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-281100-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
455 AM CST Sat Dec 27 2025

This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.

.DAY ONE...Today and Tonight

Freezing fog may result in reduced visibilities and locally icy
roads over north central and central Wisconsin this morning.
Motorists should use caution.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

A Winter Storm Watch has been issued for the entire area starting
late Sunday afternoon and continuing through Monday, due to the
potential for heavy snowfall, northwest winds gusting to 35 to 50
mph, and blowing and drifting snow. Treacherous travel conditions
are likely. Some tree damage and power outages will also be
possible.

A surge of arctic air arrives for the New Year's holiday next
week, with periods of wind chill values as low as 15 to 25 below
zero anticipated Thursday and Friday mornings.

.SPOTTER INFORMATION STATEMENT...

Spotter activation should not be needed today or tonight.

LMZ521-522-541>543-281100-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
455 AM CST Sat Dec 27 2025

This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.

.DAY ONE...Today and Tonight

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Northwest gales or storm force gusts are possible late Sunday
night through Monday evening. The best potential for storm force
gusts will be near Deaths Door. Freezing spray will also be
possible during this time frame. Gale and Storm Watches have been
posted.

Kieckbusch

The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 26, 9:51 PM CSTSmall Craft AdvisoryGRB32 hr
Dec 27, 3:47 AM CSTGale WatchGRB11 hr
Dec 27, 3:47 AM CSTStorm WatchGRB11 hr
Dec 27, 2:40 PM CSTGale WarningGRB54 hr
Dec 27, 2:40 PM CSTStorm WarningGRB44 hr
Dec 27, 4:50 PM CSTDense Fog AdvisoryGRBLincoln, Marathon, Portage, Wood9 hr

Nearby

Winter Storm Warnings in Wisconsin, 2025Every winter storm warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.