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Ended official alertUpdated

Special Marine Warning for Tidal Potomac from Indian Head to Cobb Island MD; Tidal Potomac from Cobb Island MD to Smith Point VA

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

For the following areas... Tidal Potomac from Cobb Island MD to Smith Point VA... Tidal Potomac from Indian Head to Cobb Island MD... At 1054 PM EDT, severe thunderstorms were located along a line extending from Miles River to 6 nm northeast of Taylors Island to Coltons Point, moving east at 45 knots. HAZARD...Wind...

What the bulletin says to do

Move to safe harbor immediately as gusty winds and high waves are expected.

Read official NWS bulletin

Full official description

Bulletin details

For the following areas... Tidal Potomac from Cobb Island MD to Smith Point VA... Tidal Potomac from Indian Head to Cobb Island MD... At 1054 PM EDT, severe thunderstorms were located along a line extending from Miles River to 6 nm northeast of Taylors Island to Coltons Point, moving east at 45 knots. HAZARD...Wind gusts in excess of 48 knots. SOURCE...Observed wind. IMPACT...Boaters could easily be thrown overboard by suddenly higher wind and waves capsizing their vessel. Boats could suffer significant damage in high winds. Locations impacted include... Yeocomico River, Breton Bay, Saint Clements Bay, Piney Point, Mouth Of The Potomac River, Point Lookout, Tall Timbers, Cobb Island, Swan Point, Coltons Point, Saint George Island, Wicomico River, White Point Beach, and Coles Point.

Lifecycle record

Official revisions

4 captured
  1. Update

    Special Marine Warning issued July 21 at 10:54PM EDT until July 21 at 11:30PM EDT by NWS Baltimore MD/Washington DC

    Official revision
  2. Update

    Special Marine Warning issued July 21 at 10:24PM EDT until July 21 at 11:30PM EDT by NWS Baltimore MD/Washington DC

    Official revision
  3. Update

    Special Marine Warning issued July 21 at 10:06PM EDT until July 21 at 11:30PM EDT by NWS Baltimore MD/Washington DC

    Official revision
  4. Alert

    Special Marine Warning issued July 21 at 9:36PM EDT until July 21 at 11:30PM 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
Update
Last collected
Methodology and corrections