Low pressure tracked through the Ohio Valley and into the Great Lakes. The warm front associated with this system passed through the waters during the first. Plenty of moisture from the Gulf of Mexico and the Atlantic Ocean combined with strong forcing associated with the warm front, causing thunderstorms to develop. Moderate instability along with strong forcing caused some thunderstorms to produce gusty winds.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 01-JUN-12 18:06:00 to 01-JUN-12 18:12:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 34.00 MG
Reported by: Mesonet

Wind gusts up to 34 knots were measured at Bishops Head.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUN-12 18:00:00 to 01-JUN-12 18:00:00 (EST-5)
Location: THOMAS POINT LIGHT
Magnitude: 35.00 MG
Reported by: Buoy

Wind gusts up to 35 knots were reported at the Thomas Point Lighthouse.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 01-JUN-12 19:35:00 to 01-JUN-12 19:35:00 (EST-5)
Location: POINT LOOKOUT
Magnitude: 34.00 EG
Reported by: Mesonet

A wind gust in excess of 30 knots was reported at Point Lookout.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 01-JUN-12 20:42:00 to 01-JUN-12 20:42:00 (EST-5)
Location: COVE POINT
Magnitude: 34.00 EG
Reported by: Buoy

A wind gust in excess of 30 knots was reported at Cove Point.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 01-JUN-12 20:43:00 to 01-JUN-12 20:43:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 44.00 MG
Reported by: Buoy

A wind gust of 44 knots was reported at Bishops Head.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 01-JUN-12 20:38:00 to 01-JUN-12 20:48:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 42.00 MG
Reported by: Mesonet

Wind gusts up to 42 knots were reported at Bishops Head.

Marine Hail in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 01-JUN-12 15:10:00 to 01-JUN-12 15:10:00 (EST-5)
Location: QUANTICO
Magnitude: 0.75 
Reported by: Trained Spotter

Penny sized hail was reported nearby.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 01-JUN-12 14:49:00 to 01-JUN-12 14:49:00 (EST-5)
Location: POTOMAC LIGHT
Magnitude: 34.00 EG
Reported by: Mesonet

A wind gust in excess of 30 knots was reported at the Potomac Lighthouse.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 01-JUN-12 15:18:00 to 01-JUN-12 15:18:00 (EST-5)
Location: LEWISETTA
Magnitude: 41.00 MG
Reported by: Buoy

A wind gust of 41 knots was reported at Lewisetta.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 01-JUN-12 14:30:00 to 01-JUN-12 14:35:00 (EST-5)
Location: MONROE CREEK
Magnitude: 37.00 MG
Reported by: Mesonet

Wind gusts up to 37 knots were reported at Monroe Creek.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 01-JUN-12 15:40:00 to 01-JUN-12 15:50:00 (EST-5)
Location: WEST POTOMAC HIGH SCHOOL
Magnitude: 41.00 MG
Reported by: Buoy

Wind gusts up to 41 knots were reported AT THE Upper Potomac Buoy.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 01-JUN-12 15:54:00 to 01-JUN-12 15:54:00 (EST-5)
Location: POTOMAC BUOY
Magnitude: 34.00 EG
Reported by: Buoy

A wind gust in excess of 30 knots.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 01-JUN-12 17:06:00 to 01-JUN-12 17:06:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 34.00 EG
Reported by: Mesonet

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

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 01-JUN-12 17:00:00 to 01-JUN-12 17:30:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 34.00 EG
Reported by: Buoy

Wind gusts in excess of 30 knots was reported at Bishops Head.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 01-JUN-12 18:08:00 to 01-JUN-12 18:08:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 01-JUN-12 19:48:00 to 01-JUN-12 20:24:00 (EST-5)
Location: COVE POINT
Magnitude: 34.00 MG
Reported by: Buoy

Wind gusts up to 34 knots were reported at Cove Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 01-JUN-12 19:50:00 to 01-JUN-12 20:10:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 34.00 MG
Reported by: Buoy

Wind gusts up to 34 knots were reported at Gooses Reef.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUN-12 20:30:00 to 01-JUN-12 22:29:00 (EST-5)
Location: THOMAS POINT LIGHT
Magnitude: 35.00 MG
Reported by: Buoy

Wind gusts up to 35 knots were reported.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 01-JUN-12 17:00:00 to 01-JUN-12 17:00:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 34.00 EG
Reported by: Buoy

A wind gust in excess of 30 knots was reported at the Gooses Reef Buoy.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 01-JUN-12 16:48:00 to 01-JUN-12 17:12:00 (EST-5)
Location: COVE POINT
Magnitude: 34.00 EG
Reported by: Buoy

A wind gust in excess of 30 knots was reported at Cove Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 01-JUN-12 18:12:00 to 01-JUN-12 18:18:00 (EST-5)
Location: COVE POINT
Magnitude: 34.00 EG
Reported by: Buoy

A wind gust in excess of 30 knots was reported at Cove Point.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 01-JUN-12 20:10:00 to 01-JUN-12 20:10:00 (EST-5)
Location: LOWER HOOPERS ISLAND
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts in excess of 30 knots were reported at Lower Hoopers Island.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 01-JUN-12 20:58:00 to 01-JUN-12 20:58:00 (EST-5)
Location: RACCOON POINT
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts in excess of 30 knots were reported at Raccoon Point.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 01-JUN-12 20:39:00 to 01-JUN-12 20:56:00 (EST-5)
Location: CRISFIELD
Magnitude: 37.00 MG
Reported by: Mesonet

Wind gusts in excess of 30 knots were reported at Crisfield.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUN-12 20:32:00 to 01-JUN-12 20:32:00 (EST-5)
Location: KENT ISLAND
Magnitude: 34.00 MG
Reported by: Mesonet

A wind gust of 34 knots was reported at Kent Island.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 01-JUN-12 22:24:00 to 01-JUN-12 22:24:00 (EST-5)
Location: BALTIMORE APPROACHES BUOY
Magnitude: 35.00 MG
Reported by: Mesonet

A wind gust of 35 knots was reported.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 01-JUN-12 16:30:00 to 01-JUN-12 16:30:00 (EST-5)
Location: POINT LOOKOUT
Magnitude: 34.00 EG
Reported by: Buoy

A wind gust in excess of 30 knots was reported at Point Lookout.