A line of convective formed along a cold front as it swung through the Mid Atlantic. Strong winds aloft, between 30 and 50 mph, were mixed to the surface with the heavier precipitation.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 04-JAN-15 19:39:00 to 04-JAN-15 19:39:00 (EST-5)
Location: WASHINGTON NATIONALS PARK
Magnitude: 37.00 MG
Reported by: Mesonet

Reported at Wshnp.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 04-JAN-15 19:59:00 to 04-JAN-15 19:59:00 (EST-5)
Location: THOMAS POINT LIGHT
Magnitude: 42.00 MG
Reported by: Mesonet

Reported at Mesonet EW0112.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 04-JAN-15 20:05:00 to 04-JAN-15 20:05:00 (EST-5)
Location: THOMAS POINT LIGHT
Magnitude: 39.00 MG
Reported by: Mesonet

Reported at Mesonet Hrb.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 04-JAN-15 20:10:00 to 04-JAN-15 20:10:00 (EST-5)
Location: BALTIMORE CITY
Magnitude: 35.00 MG
Reported by: Buoy

Reported at Gun.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 04-JAN-15 20:49:00 to 04-JAN-15 20:49:00 (EST-5)
Location: PINEY POINT
Magnitude: 39.00 MG
Reported by: Buoy

Reported at Cobb Island.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 04-JAN-15 21:00:00 to 04-JAN-15 21:00:00 (EST-5)
Location: PINEY POINT
Magnitude: 39.00 MG
Reported by: Buoy

Reported at Piney Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 04-JAN-15 21:06:00 to 04-JAN-15 21:06:00 (EST-5)
Location: COVE POINT
Magnitude: 35.00 MG
Reported by: Buoy

Reported at Cove Point.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 04-JAN-15 21:58:00 to 04-JAN-15 21:58:00 (EST-5)
Location: SMITH ISLAND
Magnitude: 35.00 MG
Reported by: Buoy

Reported at Smith Island.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 04-JAN-15 19:30:00 to 04-JAN-15 19:30:00 (EST-5)
Location: WASHINGTON NATIONALS PARK
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 33 and 35 knots were reported at Pepco.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 04-JAN-15 19:36:00 to 04-JAN-15 19:36:00 (EST-5)
Location: RIVIERA BEACH
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 31 and 34 knots were reported.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 04-JAN-15 19:50:00 to 04-JAN-15 19:54:00 (EST-5)
Location: TOLLY POINT
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 31 and 34 knots were reported.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 04-JAN-15 19:53:00 to 04-JAN-15 19:53:00 (EST-5)
Location: GREENBERRY POINT
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 32 and 34 knots were reported.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 04-JAN-15 19:58:00 to 04-JAN-15 19:58:00 (EST-5)
Location: STEVENSVILLE
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 31 and 34 knots were reported.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 04-JAN-15 20:05:00 to 04-JAN-15 20:10:00 (EST-5)
Location: KENT ISLAND
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 33 and 34 knots were reported.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 04-JAN-15 20:05:00 to 04-JAN-15 20:10:00 (EST-5)
Location: THOMAS POINT LIGHT
Magnitude: 39.00 MG
Reported by: Mesonet

Gusts between 34 and 39 knots were reported.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 04-JAN-15 20:48:00 to 04-JAN-15 20:54:00 (EST-5)
Location: SANDY POINT
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 32 and 34 knots were reported.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 04-JAN-15 21:20:00 to 04-JAN-15 21:20:00 (EST-5)
Location: POINT LOOKOUT
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 31 and 34 knots were reported.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 04-JAN-15 21:30:00 to 04-JAN-15 21:30:00 (EST-5)
Location: POTOMAC BUOY
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 33 and 34 knots were reported.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 04-JAN-15 20:10:00 to 04-JAN-15 20:10:00 (EST-5)
Location: MARTIN STATE AIRPORT
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 31 and 34 knots were reported.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 04-JAN-15 20:24:00 to 04-JAN-15 20:24:00 (EST-5)
Location: MILLER ISLAND
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 31 and 34 knots were reported.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 04-JAN-15 20:39:00 to 04-JAN-15 20:39:00 (EST-5)
Location: POTOMAC LIGHT
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 32 and 34 knots were reported.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 04-JAN-15 20:00:00 to 04-JAN-15 20:00:00 (EST-5)
Location: THOMAS POINT LIGHT
Magnitude: 42.00 MG
Reported by: Buoy

Reported at Thomas Point.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 04-JAN-15 19:35:00 to 04-JAN-15 20:00:00 (EST-5)
Location: ORIOLE PARK AT CAMDEN YARDS
Magnitude: 34.00 EG
Reported by: Mesonet

Multiple gusts between 31 and 34 knots were reported between 1935 and 2000.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 04-JAN-15 21:36:00 to 04-JAN-15 21:36:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 31 and 34 knots were reported.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 04-JAN-15 21:18:00 to 04-JAN-15 21:18:00 (EST-5)
Location: PINEY POINT
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 31 and 34 knots were reported.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 04-JAN-15 19:50:00 to 04-JAN-15 19:50:00 (EST-5)
Location: SANDY POINT
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 31 and 34 knots were reported.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 04-JAN-15 19:58:00 to 04-JAN-15 19:58:00 (EST-5)
Location: TOLLY POINT
Magnitude: 42.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 04-JAN-15 19:50:00 to 04-JAN-15 20:00:00 (EST-5)
Location: ANNAPOLIS BUOY
Magnitude: 34.00 EG
Reported by: Mesonet

Gusts between 31 and 34 knots were reported.