A strong cold front passed through during the evening of the 31st. A southerly flow led to warm and humid conditions ahead of the boundary, which caused an unstable atmosphere. The instability along with the cold front caused showers and isolated thunderstorms, some of which were able to mix down strong winds from aloft.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 21:48:00 to 31-OCT-19 22:13:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 44.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 21:51:00 to 31-OCT-19 22:11:00 (EST-5)
Location: BABAR POINT (BAB)
Magnitude: 47.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 21:56:00 to 31-OCT-19 22:11:00 (EST-5)
Location: BABAR POINT (BAB)
Magnitude: 43.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 21:59:00 to 31-OCT-19 22:14:00 (EST-5)
Location: BABAR POINT (BAB)
Magnitude: 34.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 31-OCT-19 22:55:00 to 31-OCT-19 22:55:00 (EST-5)
Location: PATUXENT RIVER ASOS (KNAK)
Magnitude: 36.00 MG
Reported by: AWOS

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 31-OCT-19 22:10:00 to 31-OCT-19 22:10:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 37.00 MG
Reported by: ASOS

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 31-OCT-19 21:46:00 to 31-OCT-19 22:21:00 (EST-5)
Location: HART MILLER ISLAND (HRT)
Magnitude: 49.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 31-OCT-19 22:01:00 to 31-OCT-19 22:01:00 (EST-5)
Location: (KMTN)MARTIN STATE AIRPORT
Magnitude: 38.00 MG
Reported by: AWOS

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 31-OCT-19 22:05:00 to 31-OCT-19 22:15:00 (EST-5)
Location: SANDY POINT (SPT)
Magnitude: 36.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 31-OCT-19 22:22:00 to 31-OCT-19 23:42:00 (EST-5)
Location: GREENBERRY POINT (GBY)
Magnitude: 42.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 31-OCT-19 22:25:00 to 31-OCT-19 23:30:00 (EST-5)
Location: GREENBERRY POINT (GBY)
Magnitude: 43.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 31-OCT-19 22:36:00 to 31-OCT-19 23:00:00 (EST-5)
Location: SOLOMONS ISLAND (SLIM2)
Magnitude: 45.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 31-OCT-19 22:36:00 to 31-OCT-19 23:42:00 (EST-5)
Location: GOOSES REEF BUOY (44062)
Magnitude: 34.00 EG
Reported by: Buoy

Gusts in excess of 30 knots were observed at Goose's Reef Buoy.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 31-OCT-19 22:55:00 to 31-OCT-19 22:55:00 (EST-5)
Location: PATUXENT RIVER ASOS (KNAK)
Magnitude: 36.00 MG
Reported by: AWOS

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 31-OCT-19 23:00:00 to 31-OCT-19 23:00:00 (EST-5)
Location: PATUXENT RIVER ASOS (KNAK)
Magnitude: 51.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 31-OCT-19 23:00:00 to 31-OCT-19 23:00:00 (EST-5)
Location: SOLOMONS ISLAND (SLIM2)
Magnitude: 34.00 EG
Reported by: Buoy

Gusts in excess of 30 knots were observed on Solomons Island.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 31-OCT-19 23:02:00 to 31-OCT-19 23:12:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 39.00 MG
Reported by: Mesonet

Marine Thunderstorm Wind in CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 31-OCT-19 23:06:00 to 31-OCT-19 23:42:00 (EST-5)
Location: CAMBRIDGE (CAMM2)
Magnitude: 40.00 MG
Reported by: Mesonet

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 20:26:00 to 31-OCT-19 20:51:00 (EST-5)
Location: BABAR POINT (BAB)
Magnitude: 35.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 31-OCT-19 22:06:00 to 31-OCT-19 22:30:00 (EST-5)
Location: TOLCHESTER MD (TCBM2)
Magnitude: 53.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 31-OCT-19 22:12:00 to 31-OCT-19 23:24:00 (EST-5)
Location: PINEY POINT (PPTM2)
Magnitude: 46.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 31-OCT-19 22:12:00 to 31-OCT-19 23:24:00 (EST-5)
Location: LEWISETTA MD (LWTV2)
Magnitude: 42.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 22:16:00 to 31-OCT-19 22:36:00 (EST-5)
Location: BABAR POINT (BAB)
Magnitude: 41.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 31-OCT-19 23:08:00 to 31-OCT-19 23:28:00 (EST-5)
Location: LOWER HOOPERS ISLAND (HPR)
Magnitude: 39.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 31-OCT-19 23:12:00 to 31-OCT-19 23:30:00 (EST-5)
Location: GREENBERRY POINT (GBY)
Magnitude: 34.00 EG
Reported by: Buoy

Wind gusts in excess of 30 knots were observed at Annapolis buoy.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 20:28:00 to 31-OCT-19 21:08:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 38.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 20:29:00 to 31-OCT-19 21:29:00 (EST-5)
Location: MONROE CREEK (MON)
Magnitude: 35.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 20:29:00 to 31-OCT-19 20:29:00 (EST-5)
Location: CUCKOLD CREEK (CCK)
Magnitude: 34.00 EG
Reported by: Buoy

Winds gusted to in excess of 30 knots at Cuckold Creek.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 20:30:00 to 31-OCT-19 21:25:00 (EST-5)
Location: LEESYLVANIA STATE PARK (LSLVN)
Magnitude: 42.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 22:16:00 to 31-OCT-19 22:41:00 (EST-5)
Location: BABAR POINT (BAB)
Magnitude: 41.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 31-OCT-19 22:16:00 to 31-OCT-19 23:01:00 (EST-5)
Location: COBB POINT (COB)
Magnitude: 54.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 22:18:00 to 31-OCT-19 23:08:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 41.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 22:19:00 to 31-OCT-19 22:29:00 (EST-5)
Location: MONROE CREEK (MON)
Magnitude: 41.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 31-OCT-19 23:18:00 to 31-OCT-19 23:18:00 (EST-5)
Location: ANNAPOLIS (KNAK)
Magnitude: 43.00 MG
Reported by: ASOS

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 31-OCT-19 23:11:00 to 31-OCT-19 23:59:00 (EST-5)
Location: RACCOON POINT (RAC)
Magnitude: 41.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 31-OCT-19 23:18:00 to 31-OCT-19 23:59:00 (EST-5)
Location: RACCOON POINT (RAC)
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 31-OCT-19 23:36:00 to 31-OCT-19 23:59:00 (EST-5)
Location: CRISFIELD CG (CRS)
Magnitude: 45.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 31-OCT-19 23:45:00 to 31-OCT-19 23:59:00 (EST-5)
Location: CRISFIELD FIRE DEPARTMENT (CRSFL)
Magnitude: 46.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 31-OCT-19 23:48:00 to 31-OCT-19 23:59:00 (EST-5)
Location: PINEY POINT (PPTM2)
Magnitude: 36.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 21:34:00 to 31-OCT-19 22:14:00 (EST-5)
Location: MONROE CREEK (MON)
Magnitude: 36.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 21:44:00 to 31-OCT-19 22:14:00 (EST-5)
Location: CUCKOLD CREEK (CCK)
Magnitude: 50.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 31-OCT-19 21:34:00 to 31-OCT-19 22:14:00 (EST-5)
Location: NATIONALS PARK (WSHNP)
Magnitude: 34.00 EG
Reported by: Mesonet

Winds gusts in excess of 30 knots were observed at Nationals Park.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 31-OCT-19 21:39:00 to 31-OCT-19 21:39:00 (EST-5)
Location: ALEXANDRIA (D4370)
Magnitude: 40.00 MG
Reported by: Mesonet

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 31-OCT-19 23:49:00 to 31-OCT-19 23:59:00 (EST-5)
Location: POINT LOOKOUT (PTL)
Magnitude: 34.00 EG
Reported by: Buoy

Wind gusts in excess of 30 knots were observed at Point Lookout.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 22:19:00 to 31-OCT-19 22:19:00 (EST-5)
Location: BABAR POINT (BAB)
Magnitude: 34.00 EG
Reported by: Buoy

Wind gusts in excess of 30 knots were observed at Tower 70.

Marine Thunderstorm Wind in EASTERN BAY, ATLANTIC NORTH
From 31-OCT-19 22:30:00 to 31-OCT-19 22:30:00 (EST-5)
Location: US-50 (MD040)
Magnitude: 40.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 31-OCT-19 22:18:00 to 31-OCT-19 23:38:00 (EST-5)
Location: HERRING BAY (HRB)
Magnitude: 40.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 31-OCT-19 22:19:00 to 31-OCT-19 23:44:00 (EST-5)
Location: TOLLY POINT (TOL)
Magnitude: 40.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 31-OCT-19 22:20:00 to 31-OCT-19 22:20:00 (EST-5)
Location: KENT ISLAND (KNT)
Magnitude: 38.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 31-OCT-19 22:36:00 to 31-OCT-19 23:36:00 (EST-5)
Location: GOOSES REEF BUOY (44062)
Magnitude: 34.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 31-OCT-19 22:40:00 to 31-OCT-19 23:20:00 (EST-5)
Location: (KW29)BAY BRIDGE AIRPORT
Magnitude: 34.00 EG
Reported by: AWOS

Wind gusts in excess of 30 knots were observed at Bay Bridge Airport.

Marine Thunderstorm Wind in EASTERN BAY, ATLANTIC NORTH
From 31-OCT-19 22:46:00 to 31-OCT-19 23:31:00 (EST-5)
Location: US-50 (MD040)
Magnitude: 34.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 31-OCT-19 22:48:00 to 31-OCT-19 23:42:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 38.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 31-OCT-19 20:30:00 to 31-OCT-19 21:26:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 38.00 MG
Reported by: ASOS

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 31-OCT-19 21:21:00 to 31-OCT-19 21:21:00 (EST-5)
Location: QUANTICO (KNYG)
Magnitude: 36.00 MG
Reported by: AWOS

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 31-OCT-19 22:12:00 to 31-OCT-19 23:24:00 (EST-5)
Location: LEWISETTA (LWS)
Magnitude: 42.00 MG
Reported by: Buoy

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 31-OCT-19 22:09:00 to 31-OCT-19 23:34:00 (EST-5)
Location: POINT LOOKOUT (PTL)
Magnitude: 47.00 MG
Reported by: Buoy