A warm front crossed the waters from south to north during the morning hours of April 14th, allowing for increasing warm and moist air to move overhead. During the afternoon and evening, low pressure moved through the Ohio Valley and into the eastern Great Lakes, leading to an increase in the wind field across all levels and therefore an increase in deep layer shear. Instability remained somewhat limited, but was enough to produce showers and scattered thunderstorms during the afternoon and evening hours. A second more potent round of showers and thunderstorms then moved across the waters as a strong cold front crossed the region during the late evening and overnight hours. These thunderstorms took the form of a quasi-linear convective system which produced strong and gusty winds over the waters.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 15-APR-19 01:53:00 to 15-APR-19 02:11:00 (EST-5)
Location: ST INIGOES (KNUI)
Magnitude: 43.00 MG
Reported by: AWOS

Wind gusts of up to 43 knots were measured near St. Inigoes.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 15-APR-19 01:48:00 to 15-APR-19 02:28:00 (EST-5)
Location: POINT LOOKOUT (PTL)
Magnitude: 54.00 MG
Reported by: Buoy

Wind gusts of up to 54 knots were measured near Point Lookout.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 15-APR-19 01:31:00 to 15-APR-19 01:31:00 (EST-5)
Location: HERRING BAY (HRB)
Magnitude: 35.00 MG
Reported by: Buoy

Wind gusts of up to 35 knots were measured near Herring Bay.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 15-APR-19 02:49:00 to 15-APR-19 02:54:00 (EST-5)
Location: CRISFIELD CG (CRS)
Magnitude: 40.00 MG
Reported by: Buoy

Wind gusts of up to 40 knots were measured near Crisfield.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 15-APR-19 01:34:00 to 15-APR-19 01:39:00 (EST-5)
Location: GREENBERRY POINT (GBY)
Magnitude: 39.00 MG
Reported by: Buoy

Wind gusts of up to 39 knots were measured near Greenbury Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 15-APR-19 01:36:00 to 15-APR-19 01:41:00 (EST-5)
Location: KENT ISLAND (KNT)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed near Kent Island.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 15-APR-19 00:16:00 to 15-APR-19 00:56:00 (EST-5)
Location: LEESYLVANIA STATE PARK (LSLVN)
Magnitude: 40.00 MG
Reported by: Mesonet

Wind gusts of up to 40 knots were measured near Occoquan.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 15-APR-19 00:29:00 to 15-APR-19 00:29:00 (EST-5)
Location: BRYANT ALTERNATIVE HS (AELXD)
Magnitude: 34.00 MG
Reported by: Mesonet

A wind gust of 34 knots was measured near Bryant Alternative High School.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 15-APR-19 00:24:00 to 15-APR-19 00:24:00 (EST-5)
Location: WASHINGTON DC (WASD2)
Magnitude: 34.00 EG
Reported by: Mesonet

A wind gust of up to 34 knots was observed near Washington DC Southwest Waterfront (WASD2).

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 15-APR-19 00:26:00 to 15-APR-19 01:21:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 48.00 MG
Reported by: ASOS

Wind gusts of up to 48 knots were measured at Washington Reagan National Airport (KDCA).

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 15-APR-19 00:41:00 to 15-APR-19 00:41:00 (EST-5)
Location: QUANTICO (KNYG)
Magnitude: 38.00 MG
Reported by: ASOS

A wind gust of 38 knots was measured at Quantico (KNYG).

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 15-APR-19 00:29:00 to 15-APR-19 00:29:00 (EST-5)
Location: NATIONALS PARK (WSHNP)
Magnitude: 36.00 MG
Reported by: Mesonet

A wind gust of 36 knots was measured near Washington Nationals Park.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 15-APR-19 00:59:00 to 15-APR-19 00:59:00 (EST-5)
Location: ALEXANDRIA (D4370)
Magnitude: 35.00 MG
Reported by: Mesonet

A wind gust of 35 knots was measured near Fort Washington.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 15-APR-19 01:00:00 to 15-APR-19 02:00:00 (EST-5)
Location: BALTIMORE KEY BRIDGE (FSKM2)
Magnitude: 35.00 MG
Reported by: Mesonet

Wind gusts of up to 35 knots were measured near the Baltimore Key Bridge.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 15-APR-19 01:21:00 to 15-APR-19 01:36:00 (EST-5)
Location: MONROE CREEK (MON)
Magnitude: 46.00 MG
Reported by: Buoy

A wind gust of 46 knots was measured near Monroe Creek.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 15-APR-19 01:37:00 to 15-APR-19 01:37:00 (EST-5)
Location: CUCKOLD CREEK (CCK)
Magnitude: 37.00 MG
Reported by: Buoy

A wind gust of 37 knots was measured near Cuckold Creek.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 15-APR-19 01:36:00 to 15-APR-19 01:41:00 (EST-5)
Location: SANDY POINT (SPT)
Magnitude: 38.00 MG
Reported by: Buoy

A wind gust of 38 knots was measured near Sandy Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 15-APR-19 01:10:00 to 15-APR-19 02:10:00 (EST-5)
Location: HART MILLER ISLAND (HRT)
Magnitude: 38.00 MG
Reported by: Buoy

Wind gusts of up to 38 knots were measured near Hart Miller Island.

Marine Thunderstorm Wind in CHESAPEAKE BAY N OF POOLES IS MD, ATLANTIC NORTH
From 15-APR-19 01:38:00 to 15-APR-19 02:08:00 (EST-5)
Location: GROVE POINT (GVP)
Magnitude: 53.00 MG
Reported by: Buoy

Wind gusts of up to 53 knots were measured near Grove Point.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 15-APR-19 01:36:00 to 15-APR-19 02:12:00 (EST-5)
Location: LEWISETTA MD (LWTV2)
Magnitude: 50.00 MG
Reported by: Buoy

Wind gusts of up to 50 knots were measured at Lewisetta.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 15-APR-19 01:42:00 to 15-APR-19 01:48:00 (EST-5)
Location: TOLCHESTER MD (TCBM2)
Magnitude: 42.00 MG
Reported by: Buoy

Wind gusts of up to 42 knots were measured near Tolchester.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 15-APR-19 01:36:00 to 15-APR-19 02:12:00 (EST-5)
Location: LEWISETTA (LWS)
Magnitude: 50.00 MG
Reported by: Buoy

Wind gusts of up to 50 knots were measured near Lewisetta.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 15-APR-19 01:50:00 to 15-APR-19 01:50:00 (EST-5)
Location: LAKELAND ES AND MS (BLTLK)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were measured near Lakeland Elementary School.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 15-APR-19 01:50:00 to 15-APR-19 01:50:00 (EST-5)
Location: MARYLAND SCIENCE CENTER (BLMRE)
Magnitude: 41.00 MG
Reported by: Mesonet

Wind gusts of up to 41 knots were measured near the Maryland Science Center.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 15-APR-19 01:33:00 to 15-APR-19 01:51:00 (EST-5)
Location: COBB POINT (COB)
Magnitude: 51.00 MG
Reported by: Buoy

Wind gusts of up to 51 knots were measured near Cobb Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 15-APR-19 02:12:00 to 15-APR-19 02:12:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 34.00 EG
Reported by: Buoy

Wind gusts of up to 34 knots were observed near Cove Point.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 15-APR-19 02:10:00 to 15-APR-19 02:55:00 (EST-5)
Location: CRISFIELD FIRE DEPARTMENT (CRSFL)
Magnitude: 37.00 MG
Reported by: Mesonet

Wind gusts of up to 37 knots were measured at the Crisfield Fire Department.

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 15-APR-19 02:05:00 to 15-APR-19 02:13:00 (EST-5)
Location: SOLOMONS ISLAND (SLIM2)
Magnitude: 36.00 MG
Reported by: ASOS

Wind gusts of up to 36 knots were measured at Patuxent River NAS (KNHK).

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 15-APR-19 02:01:00 to 15-APR-19 02:36:00 (EST-5)
Location: LOWER HOOPERS ISLAND (HPR)
Magnitude: 60.00 MG
Reported by: Buoy

Wind gusts of up to 60 knots were measured near Lower Hoopers Island.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 15-APR-19 02:00:00 to 15-APR-19 02:36:00 (EST-5)
Location: BISHOPS HEAD (BISM2)
Magnitude: 44.00 MG
Reported by: Buoy

Wind gusts of up to 44 knots were measured near Bishops Head.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 15-APR-19 02:14:00 to 15-APR-19 02:54:00 (EST-5)
Location: RACCOON POINT (RAC)
Magnitude: 45.00 MG
Reported by: Buoy

Wind gusts of up to 45 knots were measured near Raccoon Point.