A cold front crossed WV in the morning and made it to the I-95 corridor by the evening. Increased instability led to pre frontal showers and thunderstorms that were capable of damaging winds.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 08-SEP-12 15:18:00 to 08-SEP-12 15:30:00 (EST-5)
Location: RIVIERA BEACH
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 36 knots were reported at the Baltimore Key Bridge.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 06-SEP-12 15:28:00 to 06-SEP-12 15:28:00 (EST-5)
Location: THOMAS POINT LIGHT
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Wind gusts up to 35 knots were reported at Annapolis.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 08-SEP-12 15:30:00 to 08-SEP-12 15:50:00 (EST-5)
Location: PATAPSCO BUOY
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Wind gusts up to 43 knots were reported at Patapsco Buoy.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 08-SEP-12 15:34:00 to 08-SEP-12 15:34:00 (EST-5)
Location: US NAVAL ACADEMY
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 34 knots were reported at St Mary's Elementary School.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 08-SEP-12 15:35:00 to 08-SEP-12 15:45:00 (EST-5)
Location: THOMAS POINT LIGHT
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 39 knots were reported at Herring Bay.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 08-SEP-12 15:36:00 to 08-SEP-12 15:50:00 (EST-5)
Location: GREENBERRY POINT
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 40 knots were reported at Greenbury Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 08-SEP-12 15:42:00 to 08-SEP-12 15:54:00 (EST-5)
Location: BALTIMORE APPROACHES BUOY
Magnitude: 45.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 45 knots were reported at Tolly Point Bayside Elementary.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 08-SEP-12 15:44:00 to 08-SEP-12 15:44:00 (EST-5)
Location: STEVENSVILLE
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 37 knots were reported at Stevensville.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 08-SEP-12 15:00:00 to 08-SEP-12 15:10:00 (EST-5)
Location: LYLES-CROUCH ACADEMY ALEXANDRIA
Magnitude: 47.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Wing gusts up to 47 knots were reported at Upper Potomac Buoy.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 08-SEP-12 15:00:00 to 08-SEP-12 15:00:00 (EST-5)
Location: WASHINGTON NATIONALS PARK
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts of 37 knots were reported at Washington DC.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 08-SEP-12 15:00:00 to 08-SEP-12 15:10:00 (EST-5)
Location: WASHINGTON NATIONALS PARK
Magnitude: 45.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 45 knots were reported at Nationals Park.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 08-SEP-12 15:00:00 to 08-SEP-12 15:00:00 (EST-5)
Location: QUANTICO
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 34 knots were reported at Mason Neck.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 08-SEP-12 15:05:00 to 08-SEP-12 15:05:00 (EST-5)
Location: PATUXENT RIVER ASOS
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts in excess of 32 knots were reported at George Washington University.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 08-SEP-12 15:05:00 to 08-SEP-12 15:05:00 (EST-5)
Location: QUANTICO
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Wind gusts up to 50 knots were reported at Quantico.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 08-SEP-12 16:17:00 to 08-SEP-12 16:17:00 (EST-5)
Location: PATUXENT RIVER ASOS
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Wind gusts up to 34 knots were reported at Patuxent River ASOS.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 08-SEP-12 16:54:00 to 08-SEP-12 16:54:00 (EST-5)
Location: LEWISETTA
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts in excess of 33 knots were reported Lewisetta.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 08-SEP-12 16:54:00 to 08-SEP-12 16:54:00 (EST-5)
Location: LEWISETTA
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts in excess of 33 knots were reported at Lewisetta.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 08-SEP-12 15:45:00 to 08-SEP-12 15:55:00 (EST-5)
Location: KENT ISLAND
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 36 knots were reported at Kent Island.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 08-SEP-12 15:06:00 to 08-SEP-12 15:06:00 (EST-5)
Location: WASHINGTON NATIONALS PARK
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 37 knots were reported at Washington DC.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 08-SEP-12 15:10:00 to 08-SEP-12 15:10:00 (EST-5)
Location: LYLES-CROUCH ACADEMY ALEXANDRIA
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts in excess of 33 knots were reported at Club Managers Association Alexandria.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 08-SEP-12 17:34:00 to 08-SEP-12 17:59:00 (EST-5)
Location: CRISFIELD
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 39 knots were reported at Crisfield Fire Department.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 08-SEP-12 17:59:00 to 08-SEP-12 17:59:00 (EST-5)
Location: SMITH ISLAND
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts in excess of 32 knots were reported at Smith Island.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 08-SEP-12 17:39:00 to 08-SEP-12 17:39:00 (EST-5)
Location: CRISFIELD
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts in excess of 32 knots were reported at Crisfield CG Stat.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 08-SEP-12 15:40:00 to 08-SEP-12 15:50:00 (EST-5)
Location: GREENBERRY POINT
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Wind gusts up to 35 knots were reported at CBIBS Annapolis Buoy.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 08-SEP-12 15:55:00 to 08-SEP-12 16:05:00 (EST-5)
Location: CHESAPEAKE BEACH
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts of up to 36 knots were reported at Blackwalnut Harbour.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 08-SEP-12 15:56:00 to 08-SEP-12 15:56:00 (EST-5)
Location: SANDY POINT
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 34 knots were reported at Stevensville MD.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 08-SEP-12 16:00:00 to 08-SEP-12 16:00:00 (EST-5)
Location: THOMAS POINT LIGHT
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Wind gusts up to 52 knots were reported at Thomas Point Lighthouse.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 08-SEP-12 14:55:00 to 08-SEP-12 15:04:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 42.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 42 knots were reported Hoffman-Boston ES.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 08-SEP-12 14:55:00 to 08-SEP-12 15:04:00 (EST-5)
Location: WASHINGTON NATIONALS PARK
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 54 knots were reported at Pepco Washington DC.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 08-SEP-12 14:56:00 to 08-SEP-12 14:56:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Wind gusts up to 50 knots were reported at Reagan National Airport.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 08-SEP-12 16:48:00 to 08-SEP-12 16:48:00 (EST-5)
Location: COVE POINT
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts in excess of 31 knots were reported at Cove Point.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 08-SEP-12 16:54:00 to 08-SEP-12 16:54:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts in excess of 31 knots were reported at Bishops Head.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 08-SEP-12 16:54:00 to 08-SEP-12 16:54:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts in excess of 31 knots were reported at Bishops Head.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 08-SEP-12 15:47:00 to 08-SEP-12 15:47:00 (EST-5)
Location: CUCKOLD CREEK
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 34 knots were reported at Cuckold Creek.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 08-SEP-12 15:55:00 to 08-SEP-12 15:55:00 (EST-5)
Location: MONROE CREEK
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 34 knots were reported at Monroe Creek.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 08-SEP-12 15:45:00 to 08-SEP-12 15:50:00 (EST-5)
Location: CHESAPEAKE BEACH
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 36 knots were reported at Ron n Reel Chesapeake Beach.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 08-SEP-12 16:05:00 to 08-SEP-12 16:10:00 (EST-5)
Location: MONROE CREEK
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts in excess of 33 knots were reported at Monroe Creek.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 08-SEP-12 16:00:00 to 08-SEP-12 16:10:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Wind gusts up to 37 knots were reported at CBIBS Gooses Reef Buoy.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 08-SEP-12 16:12:00 to 08-SEP-12 16:48:00 (EST-5)
Location: COVE POINT
Magnitude: 47.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 47 knots were reported at Cove Point.

Marine Thunderstorm Wind in CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 08-SEP-12 16:18:00 to 08-SEP-12 16:36:00 (EST-5)
Location: CAMBRIDGE
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 37 knots were reported at Cambridge.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 08-SEP-12 16:30:00 to 08-SEP-12 16:30:00 (EST-5)
Location: PINEY POINT
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts in excess of 33 knots were reported at Piney Point.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 08-SEP-12 15:43:00 to 08-SEP-12 15:43:00 (EST-5)
Location: POTOMAC LIGHT
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 36 knots were reported at Potomac Light.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 08-SEP-12 15:35:00 to 08-SEP-12 15:55:00 (EST-5)
Location: MASON NECK
Magnitude: 42.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 42 knots were reported at Baber Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 08-SEP-12 15:34:00 to 08-SEP-12 15:44:00 (EST-5)
Location: TOLLY POINT
Magnitude: 38.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts up to 38 knots were reported at St Anne's School in Annapolis.