Alert archive / Wisconsin / River Flood Warnings in 2026

River Flood Warning 7, NWS Green Bay, WI

April 4, 2026Outagamie County, Waupaca County, Winnebago County, Wisconsin

NWS Green Bay, WI issued this river flood warning at Apr 4, 2026, 10:36 AM CDT for Outagamie County, Waupaca County, Winnebago County, Wisconsin. It took effect at Apr 4, 2026, 8:57 PM CDT. It was in force for 25 days.

The area

The counties it named.

The facts

Issued: Apr 4, 2026, 10:36 AM CDT (15:36 UTC)
In effect from: Apr 4, 2026, 8:57 PM CDT
Expired: Apr 29, 2026, 11:03 AM CDT
In force: 25 days
Issued by: NWS Green Bay, WI
Area: Storm-based polygon
Flood severity: Minor

Counties Outagamie County, WI, Waupaca County, WI, Winnebago County, WI

The radar

The Green Bay radar (KGRB), 50 km from the middle of the area, began a volume at 15:36 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) at New London (NEWW3). The gauge peaked at 12.12 ft at Apr 18, 2026, 10:00 AM CDT.

Action stage: 7 ft
Minor stage: 9 ft
Moderate stage: 10.5 ft
Major stage: 11.1 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 04079000, 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, 7:19 AM CDT, 3 hours 17 minutes earlier.

Area forecast discussion, Apr 4, 7:19 AM CDT, 3 hours 17 minutes before

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Hazardous weather outlook, Apr 4, 3:38 AM CDT, 6 hours 58 minutes before

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In the hours before

Local storm report, Apr 4, 8:42 AM CDT, 1 hour 54 minutes before

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Local storm report, Apr 4, 9:11 AM CDT, 1 hour 25 minutes before

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Local storm report, Apr 4, 9:33 AM CDT, 1 hour 3 minutes before

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Local storm report, Apr 4, 9:38 AM CDT, 58 minutes before

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Local storm report, Apr 4, 9:46 AM CDT, 50 minutes before

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Local storm report, Apr 4, 10:25 AM CDT, 11 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 3:57 AM CDT	Small Craft Advisory	GRB		33 hr
Apr 4, 10:29 AM CDT	River Flood Warning	GRB	Shawano, Waupaca	58 hr
Apr 4, 10:32 AM CDT	River Flood Warning	GRB	Waupaca	58 hr
Apr 4, 11:40 AM CDT	River Flood Warning	GRB	Brown	9 hr
Apr 4, 3:43 PM CDT	River Flood Warning	GRB	Wood	36 hr

Nearby

River Flood Warnings in Wisconsin, 2026 Every 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.