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Hazardous Weather Outlook
Note:  Product updated daily by 6 AM and as needed during the day.

588
FLUS43 KGRB 170808
HWOGRB

Hazardous Weather Outlook
National Weather Service Green Bay WI
308 AM CDT Sun May 17 2026

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-180815-
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-
308 AM CDT Sun May 17 2026

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

.DAY ONE...Today and Tonight

The threat of thunderstorms will gradually increase from south to
north today. A few strong to severe storms could form in central
Wisconsin late in the afternoon, and regionwide tonight. A more
concentrated threat of severe storms may occur over north central
Wisconsin overnight. The primary threat will be large hail.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The potential for thunderstorms and heavy rainfall will continue
Monday into Tuesday morning. There is a chance of severe storms
with damaging winds and large hail during this period, but
precise timing and coverage is still uncertain.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed at times from late this
afternoon through early Tuesday.

$$

LMZ521-522-541>543-180815-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
308 AM CDT Sun May 17 2026

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

.DAY ONE...Today and Tonight

There is a chance of thunderstorms through the period.

Conditions hazardous to small craft will develop on Lake Michigan
late tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Conditions hazardous to small craft are expected on Lake Michigan
through Tuesday evening.

Thunderstorms will be possible from Monday through Tuesday morning.
Any thunderstorm could pose a hazard to mariners.

$$
Kieckbusch


 

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