Flood Warning Issued for Milwaukee and Waukesha Counties, Wisconsin
This alert is no longer in effect.
NOAA issued it on April 16, 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 Flood Warning is in effect for Milwaukee and Waukesha counties in Wisconsin until 2:00 AM CDT on April 16, 2026, due to excessive rainfall causing urban and small stream flooding.
Read this weather record in 30 seconds
- Record type
- Flood Warning
- Affected area
- Southeast Wisconsin
- Issued
- April 16, 2026
- Issuing authority
- NWS Milwaukee/Sullivan 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 Southeast Wisconsin.
Alert Details
The Flood Warning has been issued by NWS Milwaukee/Sullivan WI. It is effective from April 15, 2026, at 10:58 PM CDT until April 16, 2026, at 2:00 AM CDT.
Affected Areas
The warning affects Milwaukee, WI and Waukesha, WI, including specific locations such as Milwaukee, Waukesha, West Allis, Wauwatosa, New Berlin, Brookfield, Greenfield, Menomonee Falls, Oak Creek, Muskego, South Milwaukee, Cudahy, Whitefish Bay, Greendale, Pewaukee, Brown Deer, Sussex, St. Francis, Hartland, and Hales Corners.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Expected Conditions
Urban area and small stream flooding caused by excessive rainfall is expected. Between 1.5 and 3 inches of rain have fallen, with additional rainfall amounts up to 0.5 inches possible. Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring, with numerous roads closed and low-water crossings inundated.
Timeline
The alert is effective from April 15, 2026, at 10:58 PM CDT and ends on April 16, 2026, at 2:00 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 (1,134 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to April 16, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.