Special Marine Warning for Lake Ontario and St. Lawrence River
This alert is no longer in effect.
NOAA issued it on July 12, 2026, 6 weeks 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 and the St. Lawrence River due to a strong thunderstorm producing wind gusts to 40 knots until 10:45 AM EDT.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Lake Ontario and St. Lawrence River, New York
- Issued
- July 12, 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 6 weeks ago; use the issuing agency's live warning service for current conditions in Lake Ontario and St. Lawrence River, New York.
Alert Details
A Special Marine Warning has been issued by the National Weather Service in Buffalo NY. The alert is effective from 9:49 AM EDT on June 14, 2026, until 10:45 AM EDT on June 14, 2026.
Affected Areas
The warning covers Lake Ontario from North Pond to Cape Vincent, the Saint Lawrence River from Cape Vincent to Alexandria Bay, Mexico Bay NY to the St. Lawrence River, Sodus Bay to Mexico Bay NY beyond 5NM off shoreline to US-Canadian border, Mexico Bay NY to the St. Lawrence River beyond 5NM off shoreline to US-Canadian border, and St. Lawrence River above Ogdensburg NY.
What You Should Do
Move to safe harbor immediately as gusty winds and high waves are expected.
Expected Conditions
At 9:48 AM EDT, a strong thunderstorm was located 19 nm northwest of Oswego, moving east at 45 knots. Hazard includes wind gusts to 40 knots. Small craft could be damaged in briefly higher winds and suddenly higher waves.
Timeline
The alert is in effect from 9:49 AM EDT until 10:45 AM EDT on June 14, 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 (1,028 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 12, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.