Special Marine Warning Issued for Central Bay of Green Bay
This alert is no longer in effect.
NOAA issued it on August 18, 2026, 5 days 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.
NWS Green Bay has issued a Special Marine Warning for Central Bay of Green Bay until 4:45 PM CDT due to a severe thunderstorm with large hail and 34-knot winds.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Central Bay of Green Bay
- Issued
- August 18, 2026
- Issuing authority
- NWS Green Bay WI
Marine notices apply to named waters or shoreline zones. They may not describe conditions on land, even when the nearest place name is the same.
Record status: historical. It was issued 5 days ago; use the issuing agency's live warning service for current conditions in Central Bay of Green Bay.
Alert Details
A Special Marine Warning has been issued by the National Weather Service in Green Bay WI. The alert is effective from August 18 at 2:45 PM CDT until August 18 at 4:45 PM CDT.
Affected Areas
Central Bay of Green Bay south of a line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI. The thunderstorm was located over Crivitz, or 18 NM northwest of Marinette, and will be near Chambers Island around 3:40 PM CDT and Eagle Bluff Light around 3:55 PM CDT. Other impacted locations include Sister Bay.
What You Should Do
Move to safe harbor until hazardous weather passes. Small craft could be damaged in briefly higher winds and suddenly higher waves.
Expected Conditions
A severe thunderstorm is producing large hail and wind gusts to 34 knots. The storm is moving east at 30 knots.
Timeline
The warning is in effect from 2:45 PM CDT to 4:45 PM CDT on August 18.
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 (943 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 18, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.