Special Marine Warning Issued for Lake Ontario Areas
This alert is no longer in effect.
NOAA issued it on May 21, 2026, 3 months 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 Buffalo has issued a Special Marine Warning for Lake Ontario from Oswego to Chaumont until 5:30 PM EDT due to a strong thunderstorm.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Lake Ontario, New York
- Issued
- May 21, 2026
- Issuing authority
- NWS Buffalo NY
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 3 months ago; use the issuing agency's live warning service for current conditions in Lake Ontario, New York.
Alert Details
A Special Marine Warning has been issued by the National Weather Service in Buffalo NY. The alert is effective from May 13, 2026 at 4:54 PM EDT until May 13, 2026 at 5:30 PM EDT.
Affected Areas
The warning covers Lake Ontario from Oswego to Chaumont, including locations such as Pillar Point, Black River Bay, Southwick Beach, Sackets Harbor, North Pond, Henderson Harbor, Chaumont Bay, Stony Point, Sandy Island Beach, and Oswego.
What You Should Do
Move to safe harbor until hazardous weather passes.
Expected Conditions
At 4:54 PM EDT, a strong thunderstorm was located near Southwick Beach, or 11 nm north of Mexico Bay, moving northeast at 25 knots. Hazards include wind gusts of 34 knots or greater and small hail.
Timeline
The alert is in effect from 4:54 PM EDT to 5:30 PM EDT on May 13, 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 (834 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 21, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.