Alert archive / Wisconsin / River Flood Warnings in 2026

River Flood Warning 10, NWS Green Bay, WI

April 4, 2026Kewaunee County, Wisconsin

NWS Green Bay, WI issued this river flood warning at Apr 4, 2026, 8:52 PM CDT for Kewaunee County, Wisconsin. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Apr 4, 2026, 8:52 PM CDT (01:52 UTC)
Expired
Apr 5, 2026, 10:19 AM CDT
In force
13 hr
Issued by
NWS Green Bay, WI
Area
Storm-based polygon
Flood severity
Minor

County Kewaunee County, WI

The radar

The Green Bay radar (KGRB), 47 km from the middle of the area, began a volume at 01:50 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point Kewaunee River near Kewaunee (KEWW3).

Action stage
12 ft
Minor stage
14 ft
Moderate stage
17 ft
Major stage
19 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 04085200, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Green Bay, WI wrote its last area forecast discussion before this river flood warning went out at Apr 4, 7:08 PM CDT, 1 hour 44 minutes earlier.

Area forecast discussion, Apr 4, 7:08 PM CDT, 1 hour 44 minutes before
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Hazardous weather outlook, Apr 4, 2:15 PM CDT, 6 hours 37 minutes before
Hazardous Weather Outlook
National Weather Service Green Bay WI
215 PM CDT Sat Apr 4 2026

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-051915-
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-
215 PM CDT Sat Apr 4 2026

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

.DAY ONE...Tonight

Many rivers will remain at or rise to bankfull tonight. Isolated
instances of minor flooding could occur on some rivers. Caution is
urged near rivers and streams, as flows will remain high.

.DAYS TWO THROUGH SEVEN...Sunday through Saturday

Many rivers will remain at or rise to bankfull through early in
the week. Isolated instances of minor flooding could occur on some
rivers. Caution is urged near rivers and streams, as flows will
remain high.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to report any river flooding to the
National Weather Service in Green Bay.

LMZ521-522-541>543-051915-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
215 PM CDT Sat Apr 4 2026

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

.DAY ONE...Tonight

Gusty winds will shift west this evening, and high winds will
create hazardous conditions for small craft on the lake and bay.
Small Craft Advisories are in effect.

.DAYS TWO THROUGH SEVEN...Sunday through Saturday

Hazardous conditions to small craft are expected on the lake and
bay Sunday morning. Small Craft Advisories are in effect.

Additional periods of hazardous conditions to small craft are
possible Monday into Monday night and Tuesday night through
Thursday. Gales are possible Wednesday into Wednesday night.

Kurimski

The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 5, 1:36 PM CDTSmall Craft AdvisoryGRB22 hr

Nearby

River Flood Warnings in Wisconsin, 2026Every river flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.