Alert archive / Wisconsin / River Flood Warnings in 2026

River Flood Warning 44, NWS Green Bay, WI

April 20, 2026Waushara County, Winnebago County, Wisconsin

NWS Green Bay, WI issued this river flood warning at Apr 20, 2026, 8:24 AM CDT for Waushara County, Winnebago County, Wisconsin. It was in force for 21 days.

The area

The counties it named.

The facts

Issued
Apr 20, 2026, 8:24 AM CDT (13:24 UTC)
Expired
May 11, 2026, 8:24 AM CDT
In force
21 days
Issued by
NWS Green Bay, WI
Area
Storm-based polygon
Flood severity
Minor

Counties Waushara County, WI, Winnebago County, WI

The radar

The Green Bay radar (KGRB), 80 km from the middle of the area, began a volume at 13:26 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 Wolf River (WI) near Lake Poygan (WNCW3).

Action stage
4 ft
Minor stage
5 ft
Moderate stage
7 ft
Major stage
8.5 ft

This gauge today: stage, forecast and historic crests

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

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 20, 1:15 AM CDTSmall Craft AdvisoryGRB36 hr
Apr 20, 8:25 AM CDTRiver Flood WarningGRBFlorence, Marinette37 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.