Severe Thunderstorm Warning Issued for Pierce and St. Croix Counties in Wisconsin
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The National Weather Service has issued a Severe Thunderstorm Warning for eastern Pierce and southeastern St. Croix counties in Wisconsin until 2:45 PM CDT, with half dollar-sized hail and winds up to 50 MPH expected.
What this NWS weather alert tells you, and what most readers miss
This notice was issued by NOAA on April 23, 2026 and geographically references Pierce and St. Croix Counties, Wisconsin. Its severity classification of "high" signals how the issuing agency weighs the risk of harm if no action is taken - "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to - Weather Alerts - determines the warning protocol behind it, which shapes what protective action (seeking shelter, following evacuation orders if issued, monitoring official updates) is recommended and which agency holds authority to issue or cancel it.
Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly NOAA detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action, a single localized NWS weather alert is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.
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Severe Thunderstorm Warning
Alert Details
The National Weather Service in Twin Cities/Chanhassen MN has issued a Severe Thunderstorm Warning. It is effective from 2:06 PM CDT on April 17, 2026, until 2:45 PM CDT on the same day.
Affected Areas
The warning affects eastern Pierce County and southeastern St. Croix County in west central Wisconsin. Specific locations impacted include Red Wing Airport, Hager City, Bay City, Esdaile, Ellsworth, El Paso, Martel, Baldwin, Woodville, Wilson, and Hersey.
What You Should Do
Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing large hail.
Expected Conditions
The severe thunderstorm is producing half dollar size hail, with wind gusts up to 50 MPH. It is moving northeast at 60 mph, as indicated by radar.
Timeline
The warning is effective from 2:06 PM CDT to 2:45 PM CDT on April 17, 2026.
Original source: NOAA Official Notice ↗
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