A cold front passed moved into the waters on the 25th. Tropical moisture ahead of the front caused moderate amounts of instability to develop. Thunderstorms that developed ahead of the cold front were able to produce gusty winds.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 25-AUG-11 16:30:00 to 25-AUG-11 16:45:00 (EST-5)
Location: PINEY POINT
Magnitude: 55.00 MG
Reported by: Mesonet

Wind gusts between 35 and 55 knots were reported at Cobb Point.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 25-AUG-11 16:05:00 to 25-AUG-11 16:25:00 (EST-5)
Location: BABAR POINT
Magnitude: 52.00 EG
Reported by: Mesonet

Wind gusts up to 52 knots were estimated near Baber Point.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 25-AUG-11 16:14:00 to 25-AUG-11 16:35:00 (EST-5)
Location: POTOMAC LIGHT
Magnitude: 56.00 MG
Reported by: Mesonet

Wind gusts between 35 and 56 knots were measured at the Potomac Lighthouse.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 25-AUG-11 15:50:00 to 25-AUG-11 15:55:00 (EST-5)
Location: MONROE CREEK
Magnitude: 49.00 MG
Reported by: Mesonet

Wind gusts between 47 and 49 knots were measured at Monroe Creek.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 25-AUG-11 16:22:00 to 25-AUG-11 16:22:00 (EST-5)
Location: CUCKOLD CREEK
Magnitude: 36.00 MG
Reported by: Mesonet

A wind gust of 36 knots was measured at Cuckold Creek.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 25-AUG-11 17:24:00 to 25-AUG-11 17:24:00 (EST-5)
Location: COVE POINT
Magnitude: 37.00 MG
Reported by: Buoy

A wind gust of 37 knots was measured at Cove Point.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 25-AUG-11 16:54:00 to 25-AUG-11 17:30:00 (EST-5)
Location: PINEY POINT
Magnitude: 40.00 MG
Reported by: Mesonet

Wind gusts up to 40 knots were measured at Piney Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 25-AUG-11 17:13:00 to 25-AUG-11 17:13:00 (EST-5)
Location: PATUXENT RIVER ASOS
Magnitude: 49.00 EG
Reported by: ASOS

A wind gust of 49 knots was estimated near the Patuxent River Air Station.

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 25-AUG-11 17:12:00 to 25-AUG-11 17:18:00 (EST-5)
Location: CHESAPEAKE BIOLOGICAL LABORATORY
Magnitude: 47.00 MG
Reported by: Buoy

Wind gusts between 38 and 47 knots were measured at Solomons Island.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 25-AUG-11 18:17:00 to 25-AUG-11 18:17:00 (EST-5)
Location: CRISFIELD
Magnitude: 39.00 MG
Reported by: Mesonet

A wind gust of 39 knots was measured at Crisfield.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 25-AUG-11 18:30:00 to 25-AUG-11 18:30:00 (EST-5)
Location: RACCOON POINT
Magnitude: 34.00 EG
Reported by: Mesonet

A wind gust in excess of 30 knots was measured at Raccoon Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 25-AUG-11 17:40:00 to 25-AUG-11 17:55:00 (EST-5)
Location: POINT LOOKOUT
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts in excess of 30 knots was measured at Point Lookout.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 25-AUG-11 16:09:00 to 25-AUG-11 16:09:00 (EST-5)
Location: ROUTE 301 BRIDGE
Magnitude: 56.00 EG
Reported by: Unknown

Wind gusts around 56 knots were estimated due to thunderstorm wind damage nearby.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 25-AUG-11 17:45:00 to 25-AUG-11 17:45:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 40.00 MG
Reported by: Mesonet

A wind gust of 48 knots was measured at Bishops Head.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 25-AUG-11 17:42:00 to 25-AUG-11 18:36:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 40.00 MG
Reported by: Mesonet

Wind gusts up to 40 knots were measured at Bishops Head.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 25-AUG-11 18:36:00 to 25-AUG-11 18:36:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 34.00 EG
Reported by: Mesonet

A wind gust in excess of 30 knots was measured at Bishops Head.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 25-AUG-11 18:08:00 to 25-AUG-11 18:08:00 (EST-5)
Location: SMITH ISLAND
Magnitude: 34.00 EG
Reported by: Mesonet

A wind gust in excess of 30 knots was measured at Solomons Island.