Alert USA
weather NWS none September 4, 2026 at 9:16 PM

Special Marine Warning

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 530 PM EDT.

* At 459 PM EDT, strong thunderstorms were located along a line extending from near Alexandria to near Gunston Hall, moving east at 25 knots.

HAZARD...Wind gusts 34 knots or greater.

SOURCE...Radar indicated.

IMPACT...Boaters in small craft could be thrown overboard b

Local conditions may affect travel, public safety, or daily routines. Stay informed and adjust plans if conditions change.

This report is based on information from NWS, monitored by Alert USA's verified emergency feed.

Residents should be prepared for possible effects on travel, public safety, and daily routines while the situation remains active.

Recommended steps: stay informed via official sources; avoid non-essential travel in the area; secure outdoor items if weather is involved; check on family and neighbors.

Alert USA is tracking this developing situation and will update this report as verified information becomes available.

Verified by Alert USA • NWS

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