National Weather Service United States Department of Commerce


034
FLUS43 KGRB 092137
HWOGRB

Hazardous Weather Outlook
National Weather Service Green Bay WI
437 PM CDT Sun Aug 9 2026

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-102145-
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-
437 PM CDT Sun Aug 9 2026

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

.DAY ONE...Tonight

An isolated thunderstorm is still posibble into early this
evening. Severe weather is not expected, however any storm
could produce gusty winds and heavy rain.

Later tonight, areas of fog are expected to develop. The fog
may be locally dense in spots with a visibility down to 1/4 mile
or less.

.DAYS TWO THROUGH SEVEN...Monday through Sunday

Several rounds of showers and storms will be possible through
the middle of next week, though confidence in storm severity is
low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

$$

LMZ521-522-541>543-102145-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
437 PM CDT Sun Aug 9 2026

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

.DAY ONE...Tonight

An isolated thunderstorm is still possible through early this
evening that could pose a hazard to mariners. Patchy fog is
possible late tonight into Monday morning.

.DAYS TWO THROUGH SEVEN...Monday through Sunday

Thunderstorms will be possible at times through the middle of
next week. Any thunderstorm could pose a hazard to mariners.

$$

Eckberg


Northeast Wisconsin HWO
Southeast Wisconsin HWO
Upper Michigan HWO