Special Marine Warning Issued for St. Lawrence River NY

Source: NOAA · St. Lawrence River, New York

This alert is no longer in effect.

NOAA issued it on July 22, 2026, 4 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 the St. Lawrence River above Ogdensburg to St. Regis until 4:00 PM EDT due to strong thunderstorms producing wind gusts to 40 knots.

Read this weather record in 30 seconds

Record type
Special Marine Warning
Affected area
St. Lawrence River, New York
Issued
July 22, 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 4 weeks ago; use the issuing agency's live warning service for current conditions in 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 June 18, 2026 at 2:38 PM EDT until June 18, 2026 at 4:00 PM EDT.

Affected Areas

The warning covers the St. Lawrence River above Ogdensburg NY and the St. Lawrence River from Ogdensburg to St. Regis NY. Impacted locations include Tucker Terrace, Ogdensburg, Chippewa Bay, and Alexandria Bay.

What You Should Do

Move to safe harbor until hazardous weather passes.

Expected Conditions

At 2:37 PM EDT, strong thunderstorms were located along a line extending from near Tucker Terrace to 15 nm northwest of Wellesley Island, moving east at 35 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 June 18, 2026 at 2:38 PM EDT and expires at 4:00 PM EDT the same day.

Original source: NOAA Official Notice ↗

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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.

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Buffalo has issued a Special Marine Warning for the St. Lawrence River above Ogdensburg to St. Regis until 4:00 PM EDT due to strong thunderstorms producing wind gusts to 40 knots.
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 St. Lawrence River, New York. 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.