Flash Flood Warning Issued for Southeastern Wisconsin Counties
This alert is no longer in effect.
NOAA issued it on April 15, 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 Dodge, Milwaukee, Ozaukee, Washington, and Waukesha counties in southeastern Wisconsin until 10:15 PM CDT on April 14, 2026, due to thunderstorms producing heavy rain.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Southeastern Wisconsin
- Issued
- April 15, 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 Flash Flood Warning has been issued by the National Weather Service (NWS) Milwaukee/Sullivan WI. It is effective from 7:10 PM CDT on April 14, 2026, until 10:15 PM CDT on the same day.
Affected Areas
The warning affects Southeastern Dodge County, Northwestern Milwaukee County, Southwestern Ozaukee County, Southern Washington County, and Northern Waukesha County in southeastern Wisconsin. Some locations that may experience flash flooding include Northern Milwaukee, Brookfield, Menomonee Falls, Mequon, Hartford, Pewaukee, Brown Deer, Grafton, Cedarburg, Sussex, Hartland, Delafield, Jackson, Slinger, Bayside, Thiensville, Germantown, Okauchee Lake, Glendale, and Oconomowoc.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Expected Conditions
Flash flooding is caused by thunderstorms producing heavy rain. This may lead to flash flooding of small creeks and streams, urban areas, highways, streets, underpasses, and other poor drainage and low-lying areas.
Timeline
The alert is effective from 7:10 PM CDT on April 14, 2026, and expires at 10:15 PM CDT on April 14, 2026.
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 (1,178 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to April 15, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.