Flash Flood Warning Issued for Northeast Wisconsin Counties
This alert is no longer in effect.
NOAA issued it on April 14, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
A Flash Flood Warning is in effect for Brown, Calumet, Kewaunee, Manitowoc, Outagamie, and Winnebago counties in Wisconsin until 4:00 AM CDT on April 14, 2026, due to heavy rain causing potential flooding.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Northeastern Wisconsin
- Issued
- April 14, 2026
- Issuing authority
- NWS Green Bay WI
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Northeastern Wisconsin.
Alert Details
A Flash Flood Warning has been issued by the National Weather Service (NWS) Green Bay WI. This alert is effective from April 13, 2026, at 10:54 PM CDT until April 14, 2026, at 4:00 AM CDT.
Affected Areas
The warning affects Brown County, Calumet County, Kewaunee County, Manitowoc County, Outagamie County, and Winnebago County in Wisconsin. Specific locations include Green Bay, Appleton, Manitowoc, Kewaunee, Menasha, Kaukauna, Little Chute, Kimberly, Algoma, Brillion, Luxemburg, Denmark, Two Creeks, Bellevue, High Cliff State Park, Darboy, Northern Lake Winnebago, Central Lake Winnebago, and Lake Poygan.
What You Should Do
Turn around, don't drown when encountering flooded roads. Be especially cautious at night when it is harder to recognize the dangers of flooding. Be aware of your surroundings and do not drive on flooded roads.
Expected Conditions
Doppler radar indicates thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have already fallen, with additional rainfall amounts of 1 to 2 inches possible. Flash flooding is ongoing or expected to begin shortly, affecting small creeks and streams, urban areas, highways, streets, underpasses, and other poor drainage and low-lying areas.
Timeline
The alert is effective from April 13, 2026, at 10:54 PM CDT and ends on April 14, 2026, at 4:00 AM CDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,383 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to April 14, 2026.
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