Hazardous Weather Outlook
Issued by NWS Green Bay, WI

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Hazardous Weather Outlook
National Weather Service Green Bay WI
140 PM CDT Tue May 12 2026

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-131845-
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-
140 PM CDT Tue May 12 2026

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

.DAY ONE...Tonight

Storms are expected to redevelop in eastern WI during the mid to
late afternoon, with isolated strong to near severe storms
possible in eastern WI, including the Fox Valley, between 3 pm
and 7 pm. Small hail and strong wind gusts will be the primary
hazards.

.DAYS TWO THROUGH SEVEN...Wednesday through Tuesday

Elevated fire weather conditions are expected Wednesday into
Thursday and also on Saturday.

Thunderstorms will be possible at times late Thursday night into
Friday evening, and also from late Saturday night through Monday.
Locally heavy rainfall is expected.

.SPOTTER INFORMATION STATEMENT...

Spotters should relay any reports of hail or wind gusts in excess
of 40 mph to the National Weather Service in Green Bay this
afternoon.

$$

LMZ521-522-541>543-131845-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
140 PM CDT Tue May 12 2026

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

.DAY ONE...Tonight

There is a slight chance of thunderstorms from 4 to 7 pm today.

A Small Craft Advisory is in effect for the lake and bay.

.DAYS TWO THROUGH SEVEN...Wednesday through Tuesday

Conditions hazardous to small craft are expected through early
Wednesday evening on the bay and lake. A Small Craft Advisory is
in effect.

Conditions hazardous to small craft are possible again Friday
into Friday night.

Thunderstorms will be possible on Friday, and again from Sunday
into Monday.

$$

MPC