Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Green Bay WI
131 AM CDT Mon Jun 29 2026

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-300645-
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-
131 AM CDT Mon Jun 29 2026

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

.DAY ONE...Today and Tonight

An Extreme Heat Warning is in effect this afternoon and evening
for central and east-central Wisconsin as well as the lakeshore
counties. A Heat Advisory is in effect for northern Wisconsin.

There will be an increased risk of rip currents at Lake Michigan
beaches today and tonight.

Thunderstorms are possible across the region early this morning.
These storms are not expected to be severe.

There is a chance for strong to severe thunderstorms late
tonight across northern Wisconsin. The main hazards would be
damaging winds and heavy rainfall.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Multiple days of high heat and humidity along with very warm nighttime
lows will result in heat-related impacts much of the upcoming
week. An Extreme Heat Warning is in effect for central and east-
central Wisconsin as well as the lakeshore counties on Tuesday. A
Heat Advisory is in effect for northern Wisconsin.

There will be an increased risk of rip currents at Lake Michigan
beaches Tuesday and Tuesday evening.

Periodic chances for thunderstorms will last through much of next
week. There will be a risk for strong to severe storms Tuesday
and Tuesday night as well as Wednesday and Wednesday night. The
main hazards will be damaging winds and heavy rain.

Additional rounds of storms are expected Wednesday through the 4th
of July weekend. Though details are not yet known, the pattern
would support strong or severe storms.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed tonight.

$$

URGENT - WEATHER MESSAGE
National Weather Service Green Bay WI
951 AM CDT Mon Jun 29 2026

WIZ030-031-035>039-045-048-049-292300-
/O.CON.KGRB.XH.W.0001.260629T1700Z-260701T0000Z/
Marathon-Shawano-Wood-Portage-Waupaca-Outagamie-Brown-Waushara-
Winnebago-Calumet-
Including the cities of Wisconsin Rapids, Chilton, Menasha, New
London, Waupaca, Shawano, New Holstein, Wausau, Appleton, Plover,
Redgranite, Marshfield, Stevens Point, Green Bay, Oshkosh, Neenah,
Clintonville, Wautoma, and Brillion
951 AM CDT Mon Jun 29 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT TUESDAY...

* WHAT...Dangerously hot conditions with heat index values up to 109
  expected both today and Tuesday afternoon. Overnight heat indices
  will remain around 75 degrees, which will still be hazardous for
  anyone without shelter after the extreme heat in the afternoon.

* WHERE...Marathon, Portage, Waushara, Wood, Calumet, Winnebago,
  Brown, Outagamie, Shawano, and Waupaca Counties.

* WHEN...Until 7 PM CDT Tuesday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

&&

$$

Hazard Report Provided By forecast.weather.gov