Flash Flood Warning Issued for Milwaukee and Nearby Wisconsin Counties
If you are in immediate danger, call emergency services now.
For real-time, official alerts and instructions for your exact location, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia) as applicable. This article is a data summary, not a substitute for the issuing agency's live warning.
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Milwaukee/Sullivan has issued a Flash Flood Warning for parts of Milwaukee, Ozaukee, Washington, and Waukesha counties until 12:15 PM CDT.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Southeastern Wisconsin
- Issued
- September 3, 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: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
Flash Flood Warning issued by NWS Milwaukee/Sullivan WI. Effective from September 3, 2026 at 9:19 AM CDT until September 3, 2026 at 12:15 PM CDT. Severity: Severe. Urgency: Immediate. Certainty: Likely.
Affected Areas
Northern Milwaukee County, Southwestern Ozaukee County, Southeastern Washington County, and Northeastern Waukesha County in southeastern Wisconsin. Specific locations include Northern Milwaukee, Wauwatosa, Brookfield, Menomonee Falls, Mequon, Whitefish Bay, Pewaukee, Brown Deer, Sussex, Fox Point, Bayside, Thiensville, Germantown, Glendale, Butler, River Hills, Lannon, Shorewood, and Colgate.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Expected Conditions
Doppler radar indicated thunderstorms producing heavy rain. Between 1 and 2 inches of rain have fallen, with additional rainfall amounts of 1 to 2 inches possible. Flash flooding is ongoing or expected to begin shortly.
Timeline
The warning is in effect from 9:19 AM CDT to 12:15 PM CDT on September 3, 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 (1,089 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 3, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.