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Ended official alertUpdated

Special Marine Warning for Tidal Potomac from Key Bridge to Indian Head MD; Tidal Potomac from Indian Head to Cobb Island MD

This alert has ended.Kept for recent context. Do not use it as a current warning.

Official alert fields

What you need to know

Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Likely

What is happening

SMWLWX The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Tidal Potomac from Indian Head to Cobb Island MD... Tidal Potomac from Key Bridge to Indian Head MD... * Until 645 PM EDT. * At 444 PM EDT, strong thunderstorms were located along a line extending from 34 nm...

What the bulletin says to do

A Tornado Watch remains in effect until 1000 PM EDT for southern and central Maryland...northern and central Virginia...and the adjacent coastal waters. Move to safe harbor until hazardous weather passes.

Full official description

Bulletin details

SMWLWX The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Tidal Potomac from Indian Head to Cobb Island MD... Tidal Potomac from Key Bridge to Indian Head MD... * Until 645 PM EDT. * At 444 PM EDT, strong thunderstorms were located along a line extending from 34 nm northwest of Leesylvania State Park to 36 nm northwest of Quantico to 44 nm west of Aquia Creek, moving east at 25 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar indicated. IMPACT...Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel. * Locations impacted include... Potomac Creek, Maryland Point, Nanjemoy Creek, Port Tobacco River, Leesylvania State Park, Smallwood State Park, Quantico, Gunston Hall, Mathias Point, U.S. 301 Nice Memorial Bridge, Mason Neck State Park, Indian Head, Occoquan Bay, Fort Hunt, Popes Creek, Fairview Beach, and Fort Washington.

Lifecycle record

Official revisions

1 captured
  1. Alert

    Special Marine Warning issued July 28 at 4:44PM EDT until July 28 at 6:45PM EDT by NWS Baltimore MD/Washington DC

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Baltimore MD/Washington DC. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Alert
Last collected
Methodology and corrections