Northeast Wisconsin Hazardous Weather Outlook

875
FLUS43 KGRB 201826
HWOGRB

Hazardous Weather Outlook
National Weather Service Green Bay WI
126 PM CDT Wed May 20 2026

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-211830-
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-
126 PM CDT Wed May 20 2026

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

.DAY ONE...Tonight

A Frost Advisory is in effect for northern Wisconsin tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Areas of frost are possible across northern Wisconsin Thursday
night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed tonight.

$$

LMZ521-522-541>543-211830-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
126 PM CDT Wed May 20 2026

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

.DAY ONE...Tonight

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Conditions hazardous to small craft will be possible late Friday
into Saturday.

$$

Kurimski

Northeast Wisconsin HWO
Southeast Wisconsin HWO
Upper Michigan HWO