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Waukesha County weather alerts
No active National Weather Service alerts for Waukesha County, Wisconsin right now. The most recent was a Special Weather Statement that ended Sep 4, 11:30 AM.
8 in the last 30 days 8 in 12 months (since Aug 30) most common: Severe Thunderstorm Warning Get alerts on your phone →
Active alerts for Waukesha County
Refreshed every few minutes; times in CDT.
All clear in Waukesha County
No warnings, watches or advisories are in effect. See what is active across the country, or check a neighbouring county below.
Get Waukesha County alerts on your phone before you think to look them up
Forecast Bar watches the official alert feeds around the clock, NWS in the United States and Environment Canada in Canada, and pushes every warning, watch and advisory for your saved locations the moment it is issued. This page is the same data, a few minutes later.
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Where
Waukesha County on the map
Alert polygons are NWS's own. Forecast Bar's radar shows the same warnings over live precipitation, with future radar and lightning. See the radar.
Last 30 days
Recent alerts for Waukesha County
| Alert | Issued | Ended | Issued by |
|---|---|---|---|
| Special Weather Statement | Sep 4, 10:39 AM | Sep 4, 11:30 AM | Milwaukee/Sullivan WI |
| Special Weather Statement | Sep 4, 9:35 AM | Sep 4, 10:15 AM | Milwaukee/Sullivan WI |
| Severe Thunderstorm Warning | Sep 4, 12:54 AM | Sep 4, 1:45 AM | Milwaukee/Sullivan WI |
| Severe Thunderstorm Warning | Sep 4, 12:44 AM | Sep 4, 1:00 AM | Milwaukee/Sullivan WI |
| Severe Thunderstorm Warning | Sep 4, 12:29 AM | Sep 4, 1:00 AM | Milwaukee/Sullivan WI |
| Flood Advisory | Sep 4, 12:28 AM | Cancelled Sep 4, 2:13 AM | Milwaukee/Sullivan WI |
| Severe Thunderstorm Warning | Sep 4, 12:18 AM | Sep 4, 1:00 AM | Milwaukee/Sullivan WI |
| Severe Thunderstorm Warning | Sep 4, 12:04 AM | Sep 4, 1:00 AM | Milwaukee/Sullivan WI |
Pattern
What Waukesha County gets alerted for
Every alert that named Waukesha County in the last 12 months, by type. Records begin August 30, 2026, so this fills in over the year.
Plain English
What these alerts mean
A warning means the hazard is happening or about to; a watch means conditions favour it; an advisory is a lesser hazard still worth planning around.
A heads-up about conditions that do not meet warning or advisory criteria but still deserve attention, such as a strong storm, patchy fog or a brief burst of snow.
A storm with hail of 1 inch or larger, winds of 58 mph or more, or both, is occurring or imminent. Move indoors and away from windows.
Minor flooding of streets, streams or low-lying areas is expected. Expect ponding on roads and use caution when driving.
Nearby
Alerts near Waukesha County
Cities in Waukesha County
Neighbouring counties in Wisconsin
Questions
About Waukesha County alerts
How do I get Waukesha County weather alerts on my iPhone?
Install Forecast Bar, add Waukesha County as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for Waukesha County then arrives as a push notification at the moment of issue, with Critical Alerts available for the most dangerous warnings. Forecast Bar also runs on iPad, Apple Watch, Mac and Apple TV.
Where do these alerts come from?
From the National Weather Service alert feed (api.weather.gov). NWS issues alerts by county and by forecast zone; this page lists every product that names Waukesha County. Forecast Bar checks the feed continuously and this page refreshes within a few minutes of a change.
What is the difference between a watch, a warning and an advisory?
A warning means the hazard is occurring, imminent or very likely: act now. A watch means conditions are favourable for it to develop: prepare and stay informed. An advisory covers a hazard that is less serious than a warning but can still cause real inconvenience or danger if you are not ready for it.
Can I get this data as JSON?
Yes. /weather-alerts/wi/waukesha-county.json returns the active alerts, the last 30 days and the 12-month counts for Waukesha County, refreshed every minute. Please cache responses and credit National Weather Service as the source.
Never find out about a Waukesha County alert from this page again
Add Waukesha County in Forecast Bar and every NWS warning, watch and advisory arrives as a push notification the moment it is issued, on iPhone, iPad, Apple Watch, Mac and Apple TV.
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