Flood Warning Issued for Jefferson, Milwaukee, Racine, Walworth, and Waukesha Counties in 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This alert is no longer in effect.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 Jefferson, Milwaukee, Racine, Walworth, and Waukesha counties in Wisconsin until 1:00 PM CDT on April 16, due to heavy rainfall causing standing water and road closures.
Read this weather record in 30 seconds
- Record type
- Flood Warning
- Affected area
- Southeastern Wisconsin
- Issued
- April 16, 2026
- Issuing authority
- NWS Milwaukee
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 Southeastern Wisconsin.
Alert Details
A Flood Warning has been issued by the National Weather Service (NWS) Milwaukee/Sullivan WI. This alert is effective from 5:27 AM CDT on April 16, 2026, until 1:00 PM CDT on the same day.
Affected Areas
The warning affects portions of southeastern Wisconsin, specifically Jefferson, Milwaukee, Racine, Walworth, and Waukesha counties. Some locations that may experience flooding include Milwaukee, Waukesha, West Allis, Wauwatosa, New Berlin, Brookfield, Greenfield, Menomonee Falls, Oak Creek, Muskego, South Milwaukee, Cudahy, Whitewater, Whitefish Bay, Greendale, Pewaukee, Brown Deer, Sussex, Elkhorn, and St. Francis.
What You Should Do
Residents in the warned areas should turn around and not drive through flooded roads, as most flood deaths occur in vehicles. Avoid low-water crossings that are inundated and heed any road closures.
Expected Conditions
Flooding has been caused by excessive rainfall, with between 1 and 4 inches of rain having fallen. Additional rainfall amounts of 0.1 inches are possible. This has resulted in numerous areas of standing water, road closures, and slow-moving or standing water in urban and low-lying spots.
Timeline
The alert is effective from 5:27 AM CDT on April 16, 2026, and will expire at 1:00 PM CDT on April 16, 2026. Improvement in standing water is expected by early afternoon.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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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 (1,372 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to April 16, 2026.
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Common questions about this NWS weather alert.