An outflow boundary from a decaying convective system triggered an isolated severe thunderstorm over northern Virginia around midday. A cold front then triggered an organized line of thunderstorms which produced scattered to numerous damaging wind gusts over eastern West Virginia, western Maryland, and northern into central Virginia as well as the DC metro area.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 25-AUG-20 18:30:00 to 25-AUG-20 18:30:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 34.00 EG
Reported by: ASOS

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near the ASOS at Ronald Reagan Washington National Airport (KDCA).

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 25-AUG-20 18:35:00 to 25-AUG-20 18:35:00 (EST-5)
Location: NATIONALS PARK (WSHNP)
Magnitude: 35.00 MG
Reported by: Mesonet

A wind gust of 35 knots (40 MPH) was measured by a mesonet at Nationals Park.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 25-AUG-20 18:40:00 to 25-AUG-20 18:45:00 (EST-5)
Location: LEESYLVANIA STATE PARK (LSLVN)
Magnitude: 34.00 MG
Reported by: Buoy

Wind gusts to 34 knots (39 MPH) were measured by a buoy in Occoquan Bay.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 25-AUG-20 19:21:00 to 25-AUG-20 19:36:00 (EST-5)
Location: BABER POINT (BAB)
Magnitude: 40.00 MG
Reported by: Buoy

Wind gusts of 34 to 40 knots (39 to 46 MPH) were measured by a buoy near Dahlgren (PYL).

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 25-AUG-20 19:24:00 to 25-AUG-20 19:24:00 (EST-5)
Location: BABER POINT (BAB)
Magnitude: 34.00 EG
Reported by: Buoy

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) at a buoy near Dahlgren (NCDV2).

Marine Thunderstorm Wind in EASTERN BAY, ATLANTIC NORTH
From 25-AUG-20 19:25:00 to 25-AUG-20 19:25:00 (EST-5)
Location: US-50 (MD040)
Magnitude: 63.00 MG
Reported by: Mesonet

A wind gust of 63 knots (72 MPH) was measured by a mesonet near Grasonville.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 25-AUG-20 19:26:00 to 25-AUG-20 19:36:00 (EST-5)
Location: BABER POINT (BAB)
Magnitude: 38.00 MG
Reported by: Buoy

Wind gusts of 34 to 38 knots (39 to 44 MPH) were measured by a buoy near Baber Point.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 25-AUG-20 19:31:00 to 25-AUG-20 19:31:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 37.00 MG
Reported by: Buoy

A wind gust of 37 knots (43 MPH) was measured by a buoy near Potomac Light.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 25-AUG-20 19:32:00 to 25-AUG-20 19:37:00 (EST-5)
Location: CUCKOLD CREEK (CCK)
Magnitude: 35.00 MG
Reported by: Buoy

Wind gusts of 34 to 35 knots (39 to 40 MPH) were measured by a buoy near Cuckold Creek.

Marine Thunderstorm Wind in CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 25-AUG-20 19:35:00 to 25-AUG-20 19:35:00 (EST-5)
Location: BLACKWALNUT HARBOR (BWH)
Magnitude: 34.00 EG
Reported by: Buoy

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a buoy near Blackwalnut Harbor.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 25-AUG-20 19:40:00 to 25-AUG-20 19:40:00 (EST-5)
Location: MONROE CREEK (MON)
Magnitude: 34.00 EG
Reported by: Buoy

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a buoy near Monroe Creek.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 25-AUG-20 19:44:00 to 25-AUG-20 19:49:00 (EST-5)
Location: COBB POINT (COB)
Magnitude: 40.00 MG
Reported by: Buoy

Wind gusts of 37 to 40 knots (43 to 46 MPH) were measured by a buoy near Cobb Island.

Marine Thunderstorm Wind in EASTERN BAY, ATLANTIC NORTH
From 25-AUG-20 19:47:00 to 25-AUG-20 19:47:00 (EST-5)
Location: STEVENSVILLE (D2030)
Magnitude: 34.00 MG
Reported by: Mesonet

A wind gust of 34 knots (39 MPH) was measured by a mesonet near Mount Pleasant.

Marine Thunderstorm Wind in CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 25-AUG-20 19:55:00 to 25-AUG-20 19:55:00 (EST-5)
Location: CAMBRIDGE (CAMM2)
Magnitude: 34.00 EG
Reported by: AWOS

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near the AWOS at Cambridge Airport.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 25-AUG-20 19:05:00 to 25-AUG-20 19:05:00 (EST-5)
Location: THOMAS POINT (TPLM2)
Magnitude: 42.00 MG
Reported by: Buoy

A wind gust of 42 knots (48 MPH) was measured by a buoy near Thomas Point.

Marine Thunderstorm Wind in CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 25-AUG-20 20:00:00 to 25-AUG-20 20:05:00 (EST-5)
Location: CAMBRIDGE (CAMM2)
Magnitude: 34.00 EG
Reported by: Buoy

A thunderstorm produced an estimated wind gust of 34 knots (39 MPH) at a buoy near Cambridge.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 25-AUG-20 20:00:00 to 25-AUG-20 20:00:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 34.00 EG
Reported by: Buoy

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a buoy near Cove Point.

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 25-AUG-20 20:06:00 to 25-AUG-20 20:06:00 (EST-5)
Location: SOLOMONS ISLAND (SLIM2)
Magnitude: 34.00 EG
Reported by: Buoy

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a buoy near Solomons Island.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 25-AUG-20 19:06:00 to 25-AUG-20 19:42:00 (EST-5)
Location: PINEY POINT (PPTM2)
Magnitude: 34.00 MG
Reported by: Buoy

Wind gusts to 34 knots (39 MPH) were measured by a buoy near Piney Point.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 25-AUG-20 20:07:00 to 25-AUG-20 20:07:00 (EST-5)
Location: ST INIGOES (KNUI)
Magnitude: 34.00 EG
Reported by: ASOS

A gust front produced an estimated wind gust to 34 knots (39 MPH) near the ASOS at Saint Inigoes (KNUI).

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 25-AUG-20 20:31:00 to 25-AUG-20 20:31:00 (EST-5)
Location: POINT LOOKOUT (PTL)
Magnitude: 35.00 MG
Reported by: Buoy

A wind gust of 35 knots (40 MPH) was measured by a buoy near Point Lookout.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 25-AUG-20 20:48:00 to 25-AUG-20 20:48:00 (EST-5)
Location: RACCOON POINT (RAC)
Magnitude: 34.00 MG
Reported by: Buoy

A wind gust of 34 knots (39 MPH) was measured by a buoy near Raccoon Point.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 25-AUG-20 20:25:00 to 25-AUG-20 20:25:00 (EST-5)
Location: COLES POINT (COL)
Magnitude: 41.00 MG
Reported by: Mesonet

A wind gust of 41 knots (47 MPH) was measured by a mesonet near Shepherds Point.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 25-AUG-20 20:01:00 to 25-AUG-20 20:01:00 (EST-5)
Location: CUCKOLD CREEK (CCK)
Magnitude: 34.00 EG
Reported by: Mesonet

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a mesonet on US-301 Harry Nice Memorial Bridge.