Special Marine Warning Issued for Chesapeake Bay and Maryland Waters

Source: NOAA · Chesapeake Bay, Maryland

This alert is no longer in effect.

NOAA issued it on July 7, 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 Baltimore MD/Washington DC has issued a Special Marine Warning for portions of the Chesapeake Bay and surrounding Maryland rivers until 10:00 PM EDT.

Read this weather record in 30 seconds

Record type
Special Marine Warning
Affected area
Chesapeake Bay, Maryland
Issued
July 7, 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 6 weeks ago; use the issuing agency's live warning service for current conditions in Chesapeake Bay, Maryland.

Alert Details

A Special Marine Warning has been issued by the National Weather Service Baltimore MD/Washington DC. The alert is effective from June 11, 2026 at 8:07 PM EDT until June 11, 2026 at 10:00 PM EDT.

Affected Areas

The warning covers Chesapeake Bay from North Beach to Drum Point MD; Choptank River to Cambridge MD and the Little Choptank River; Patuxent River to Broomes Island MD; and Tangier Sound and the inland waters surrounding Bloodsworth Island.

What You Should Do

Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. Report severe weather to the Coast Guard or the National Weather Service. Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel.

Expected Conditions

At 8:06 PM EDT, strong thunderstorms were located along a line extending from 11 nm north of Key Bridge to Leesylvania State Park, moving northeast at 50 knots. Hazard includes wind gusts 34 knots or greater.

Timeline

The alert is in effect from June 11, 2026 at 8:07 PM EDT and expires June 11, 2026 at 10:00 PM EDT.

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 surrounding Maryland rivers until 10:00 PM EDT.
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, Maryland. 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.