A warm front crossed the waters during the morning hours of May 23rd, placing the area in the warm sector by the afternoon hours. At the same time, surface low pressure tracked across the northern Great Lakes, with an attendant cold front moving into the Ohio Valley by the evening. A mesoscale convective system (MCS) was ongoing during the morning hours and moved eastward and into the region during the afternoon hours. Out ahead of the MCS, moisture and warmth increased with moderate instability developing. Aloft, wind shear increased throughout the day and became quite substantial by the late afternoon. The MCS intensified into a linear feature that produced gusty winds over the waters during the afternoon and evening hours.

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 23-MAY-19 16:02:00 to 23-MAY-19 16:02:00 (EST-5)
Location: SOLOMONS ISLAND (SLIM2)
Magnitude: 45.00 MG
Reported by: Mesonet

Wind gusts of up to 45 knots were observed at Patuxent River.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 23-MAY-19 16:06:00 to 23-MAY-19 16:06:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 34.00 MG
Reported by: Mesonet

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

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 23-MAY-19 16:20:00 to 23-MAY-19 16:20:00 (EST-5)
Location: LOWER HOOPERS ISLAND (HPR)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Lower Hoopers Island.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 23-MAY-19 16:24:00 to 23-MAY-19 16:36:00 (EST-5)
Location: POTOMAC POINT LOOKOUT BUOY (44042)
Magnitude: 35.00 MG
Reported by: Mesonet

Wind gusts of up to 35 knots were observed at Potomac Point Buoy.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 23-MAY-19 16:27:00 to 23-MAY-19 16:27:00 (EST-5)
Location: ST INIGOES (KNUI)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Saint Inigoes.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 23-MAY-19 16:30:00 to 23-MAY-19 16:30:00 (EST-5)
Location: LEWISETTA MD (LWTV2)
Magnitude: 35.00 MG
Reported by: Mesonet

Wind gusts of up to 35 knots were observed at Lewisetta.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 23-MAY-19 16:30:00 to 23-MAY-19 16:30:00 (EST-5)
Location: LEWISETTA (LWS)
Magnitude: 35.00 MG
Reported by: Mesonet

Wind gusts of up to 35 knots were observed near Lewisetta.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 23-MAY-19 16:34:00 to 23-MAY-19 16:39:00 (EST-5)
Location: POINT LOOKOUT (PTL)
Magnitude: 45.00 MG
Reported by: Mesonet

Wind gusts of up to 45 knots were observed near Point Lookout.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 23-MAY-19 16:54:00 to 23-MAY-19 16:54:00 (EST-5)
Location: RACCOON POINT (RAC)
Magnitude: 39.00 MG
Reported by: Mesonet

Wind gusts of up to 39 knots were observed at Raccoon Point.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 23-MAY-19 17:05:00 to 23-MAY-19 17:05:00 (EST-5)
Location: CRISFIELD CG (CRS)
Magnitude: 37.00 MG
Reported by: Mesonet

Wind gusts of up to 37 knots were observed at Crisfield.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 23-MAY-19 16:34:00 to 23-MAY-19 16:34:00 (EST-5)
Location: POINT LOOKOUT (PTL)
Magnitude: 48.00 MG
Reported by: Mesonet

Wind gusts of up to 48 knots were observed at Point Lookout.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 23-MAY-19 14:45:00 to 23-MAY-19 14:55:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 59.00 MG
Reported by: Mesonet

Wind gusts of up to 59 knots were observed at Washington National Airport.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 23-MAY-19 14:49:00 to 23-MAY-19 14:59:00 (EST-5)
Location: NATIONALS PARK (WSHNP)
Magnitude: 47.00 MG
Reported by: Mesonet

Wind gusts of up to 47 knots were observed at Washington Nationals Park.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 23-MAY-19 14:49:00 to 23-MAY-19 14:49:00 (EST-5)
Location: LYLES-CROUCH ACADEMY (AXDRA)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Lyles-Crouch Academy.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 23-MAY-19 14:54:00 to 23-MAY-19 14:54:00 (EST-5)
Location: ALEXANDRIA (D4370)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Fort Washington.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-MAY-19 14:55:00 to 23-MAY-19 15:00:00 (EST-5)
Location: QUANTICO (KNYG)
Magnitude: 43.00 MG
Reported by: Mesonet

Wind gusts of up to 43 knots were observed at Quantico (KNYG).

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-MAY-19 15:26:00 to 23-MAY-19 15:26:00 (EST-5)
Location: BABAR POINT (BAB)
Magnitude: 42.00 MG
Reported by: Mesonet

Wind gusts of up to 42 knots were observed at Babar Point (BAB).

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-MAY-19 15:27:00 to 23-MAY-19 15:27:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 40.00 MG
Reported by: Mesonet

Wind gusts of up to 40 knots were observed at Pylons (PYL).

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-MAY-19 15:27:00 to 23-MAY-19 15:27:00 (EST-5)
Location: BABAR POINT (BAB)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Tower 70 (T70).

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-MAY-19 15:29:00 to 23-MAY-19 15:29:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 41.00 MG
Reported by: Mesonet

Wind gusts of up to 41 knots were observed at Potomac Light 33.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 23-MAY-19 15:05:00 to 23-MAY-19 15:05:00 (EST-5)
Location: ANNAPOLIS (KNAK)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Annapolis (KNAK).

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 23-MAY-19 15:15:00 to 23-MAY-19 15:20:00 (EST-5)
Location: BAYSIDE ES (STVVL)
Magnitude: 36.00 MG
Reported by: Mesonet

Wind gusts of up to 36 knots were observed near Stevensville.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 23-MAY-19 15:40:00 to 23-MAY-19 15:40:00 (EST-5)
Location: GOOSES REEF BUOY (44062)
Magnitude: 36.00 MG
Reported by: Mesonet

Wind gusts of up to 36 knots were observed at Blackwalnut Harbor.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 23-MAY-19 16:00:00 to 23-MAY-19 16:00:00 (EST-5)
Location: THOMAS POINT (TPLM2)
Magnitude: 36.00 MG
Reported by: Mesonet

Wind gusts of up to 36 knots were observed at Thomas Point.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-MAY-19 15:31:00 to 23-MAY-19 15:36:00 (EST-5)
Location: BABAR POINT (BAB)
Magnitude: 39.00 MG
Reported by: Mesonet

Wind gusts of up to 39 knots were observed at Babar Point.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-MAY-19 15:32:00 to 23-MAY-19 15:42:00 (EST-5)
Location: CUCKOLD CREEK (CCK)
Magnitude: 42.00 MG
Reported by: Mesonet

Wind gusts of up to 42 knots were observed at Cuckold Creek.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-MAY-19 15:32:00 to 23-MAY-19 15:42:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Pylons.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-MAY-19 15:37:00 to 23-MAY-19 15:37:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Tower 70.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-MAY-19 15:41:00 to 23-MAY-19 16:01:00 (EST-5)
Location: MONROE CREEK (MON)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Monroe Creek.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 23-MAY-19 15:43:00 to 23-MAY-19 15:48:00 (EST-5)
Location: COBB POINT (COB)
Magnitude: 36.00 MG
Reported by: Mesonet

Wind gusts of up to 36 knots were observed at Cobb Point.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-MAY-19 15:49:00 to 23-MAY-19 15:54:00 (EST-5)
Location: MONROE CREEK (MON)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed near Colonial Beach.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 23-MAY-19 16:12:00 to 23-MAY-19 16:12:00 (EST-5)
Location: PINEY POINT (PPTM2)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Piney Point.

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 23-MAY-19 16:00:00 to 23-MAY-19 16:00:00 (EST-5)
Location: SOLOMONS ISLAND (SLIM2)
Magnitude: 41.00 MG
Reported by: Mesonet

Wind gusts of up to 41 knots were observed at Solomons Island.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 23-MAY-19 14:42:00 to 23-MAY-19 14:48:00 (EST-5)
Location: WASHINGTON DC (WASD2)
Magnitude: 44.00 MG
Reported by: Mesonet

Wind gusts of up to 44 knots were observed at the Washington DC Southwest Waterfront (WASD2).

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 23-MAY-19 15:26:00 to 23-MAY-19 15:26:00 (EST-5)
Location: HERRING BAY (HRB)
Magnitude: 41.00 MG
Reported by: Mesonet

Wind gusts of up to 41 knots were observed at Herring Bay.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-MAY-19 15:34:00 to 23-MAY-19 15:39:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 38.00 MG
Reported by: Mesonet

Wind gusts of up to 38 knots were observed at Potomac Light 33.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 23-MAY-19 16:00:00 to 23-MAY-19 16:00:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 45.00 MG
Reported by: Mesonet

Wind gusts of up to 45 knots were observed at Cove Point.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 23-MAY-19 17:05:00 to 23-MAY-19 17:05:00 (EST-5)
Location: CRISFIELD FIRE DEPARTMENT (CRSFL)
Magnitude: 43.00 MG
Reported by: Mesonet

Wind gusts of up to 43 knots were observed at the Crisfield Fire Department.