Special Marine Warning Issued for Chesapeake Bay and Tidal Potomac (Sep 2, 2026)

Source: NOAA · Chesapeake Bay and Tidal Potomac

This alert is no longer in effect.

NOAA issued it on September 2, 2026, 8 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 Baltimore MD/Washington DC has issued a Special Marine Warning for portions of the Chesapeake Bay and Tidal Potomac until 4:00 PM EDT due to strong thunderstorms producing wind gusts of 34 knots or greater.

Read this weather record in 30 seconds

Record type
Special Marine Warning
Affected area
Chesapeake Bay and Tidal Potomac
Issued
September 2, 2026
Issuing authority
NWS Baltimore MD/Washington DC

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 8 days ago; use the issuing agency's live warning service for current conditions in Chesapeake Bay and Tidal Potomac.

Alert Details

A Special Marine Warning has been issued by the National Weather Service Baltimore MD/Washington DC. The alert is effective from 2:55 PM EDT on September 2, 2026, until 4:00 PM EDT on September 2, 2026. The warning carries a severity of Severe with immediate urgency and likely certainty.

Affected Areas

The warning covers Chesapeake Bay from Drum Point MD to Smith Point VA; Tidal Potomac from Indian Head to Cobb Island MD; Tidal Potomac from Cobb Island MD to Smith Point VA; and Tangier Sound and the inland waters surrounding Bloodsworth Island. Locations impacted include Yeocomico River, Breton Bay, Saint Clements Bay, Smith Island, Piney Point, Mouth Of The Potomac River, Southwest Middle Grounds, Ewell, Point Lookout, Tall Timbers, Cobb Island, Coltons Point, Nomini Bay, Coles Point, Saint George Island, Wicomico River, White Point Beach, and Crisfield.

What You Should Do

Move to safe harbor immediately as gusty winds and high waves are expected. Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel.

Expected Conditions

At 2:54 PM EDT, strong thunderstorms were located along a line extending from near Saint Inigoes Creek to White Point Beach to near Wicomico River, moving south at 35 knots. Hazard includes wind gusts 34 knots or greater, indicated by radar.

Timeline

The alert is in effect from 2:55 PM EDT until 4:00 PM EDT on September 2, 2026.

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 Baltimore MD/Washington DC has issued a Special Marine Warning for portions of the Chesapeake Bay and Tidal Potomac until 4:00 PM EDT due to strong thunderstorms producing wind gusts of 34 knots or greater.
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 Chesapeake Bay and Tidal Potomac. 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.