Severe Thunderstorm Warning for Calumet and Winnebago Counties, WI

Source: NOAA · East Central Wisconsin

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 Green Bay has issued a Severe Thunderstorm Warning for Calumet and Winnebago Counties until 4:00 PM CDT on June 10.

What this NWS weather alert tells you, and what most readers miss

This notice was issued by NOAA on July 3, 2026 and geographically references East Central 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.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (weather, alert, Severe Thunderstorm Warning, Wisconsin) map to related alerts in the same area of risk - browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

Alert Details

A Severe Thunderstorm Warning (SVR) has been issued by the National Weather Service in Green Bay WI. The alert is effective from June 10 at 2:55 PM CDT until June 10 at 4:00 PM CDT.

Affected Areas

The warning covers Calumet County and Winnebago County in east central Wisconsin. Severe thunderstorms were located along a line extending from near Green Lake to Theresa to Okauchee Lake, moving northeast at 60 mph. Locations impacted include Rush Lake, Oshkosh, Central Lake Winnebago, Chilton, St Anna, Northern Lake Winnebago, Appleton, Menasha, High Cliff State Park, Darboy, Brillion, Pickett, Killsnake Wildlife Area, Butte Des Morts, Larsen, Lake Butte Des Morts, Jericho, Rivermoor, Charlesburg, Brothertown, and Winneconne.

What You Should Do

For your protection move to an interior room on the lowest floor of a building.

Expected Conditions

At 2:55 PM CDT, severe thunderstorms were located along the line, with hazard of 60 mph wind gusts (radar indicated). Expect damage to roofs, siding, and trees. Max hail size up to .75 inches (radar indicated).

Timeline

The warning is in effect from June 10 at 2:55 PM CDT until June 10 at 4:00 PM CDT.

Original source: NOAA Official Notice ↗

All Weather Alerts →

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Green Bay has issued a Severe Thunderstorm Warning for Calumet and Winnebago Counties until 4:00 PM CDT on June 10.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects East Central Wisconsin. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.