Clusters of strong to severe thunderstorms produced numerous instances of gusty winds over the tidal Potomac River and portions of the Chesapeake Bay.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 14-JUL-21 16:23:00 to 14-JUL-21 16:48:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 52.00 MG
Reported by: Buoy

Wind gusts of up to 52 knots (60 MPH) were measured by a buoy near Potomac Light.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 14-JUL-21 16:27:00 to 14-JUL-21 16:37:00 (EST-5)
Location: BABER POINT (BAB)
Magnitude: 42.00 MG
Reported by: Buoy

Wind gusts of up to 42 knots (48 MPH) were measured by a buoy near Baber Point.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 14-JUL-21 16:32:00 to 14-JUL-21 16:57:00 (EST-5)
Location: BABER POINT (BAB)
Magnitude: 35.00 MG
Reported by: Buoy

Wind gusts of up to 35 knots (40 MPH) were measured by a buoy near Dahlgren.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 14-JUL-21 16:33:00 to 14-JUL-21 16:48:00 (EST-5)
Location: CUCKOLD CREEK (CCK)
Magnitude: 42.00 MG
Reported by: Buoy

Wind gusts of up to 42 knots (48 MPH) were measured by a buoy near Cuckold Creek.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 14-JUL-21 16:43:00 to 14-JUL-21 16:53:00 (EST-5)
Location: MONROE CREEK (MON)
Magnitude: 47.00 MG
Reported by: Buoy

Wind gusts of up to 47 knots (54 MPH) were measured by a buoy near Monroe Creek.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 14-JUL-21 16:43:00 to 14-JUL-21 17:08:00 (EST-5)
Location: COBB POINT (COB)
Magnitude: 44.00 MG
Reported by: Buoy

Wind gusts of up to 44 knots (51 MPH) were measured by a buoy near Cobb Island.

Waterspout in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 14-JUL-21 17:08:00 to 14-JUL-21 17:08:00 (EST-5)
Location: COBB POINT (COB)
Reported by: Trained Spotter

A waterspout was observed by a trained spotter in the middle of the tidal Potomac River south of Bretton Bay.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 14-JUL-21 17:24:00 to 14-JUL-21 17:48:00 (EST-5)
Location: PINEY POINT (PPTM2)
Magnitude: 54.00 MG
Reported by: Buoy

Wind gusts of up to 54 knots (62 MPH) were measured by a buoy near Piney Point.

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 14-JUL-21 17:30:00 to 14-JUL-21 17:30:00 (EST-5)
Location: SOLOMONS ISLAND (SLIM2)
Magnitude: 34.00 EG
Reported by: Buoy

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a buoy near Solomons Island.

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 14-JUL-21 17:30:00 to 14-JUL-21 17:48:00 (EST-5)
Location: SOLOMONS ISLAND (SLIM2)
Magnitude: 39.00 MG
Reported by: Buoy

Wind gusts of up to 39 knots (45 MPH) were measured by a buoy near Solomons Island.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 14-JUL-21 17:42:00 to 14-JUL-21 17:54:00 (EST-5)
Location: LEWISETTA MD (LWTV2)
Magnitude: 34.00 MG
Reported by: Buoy

Wind gusts of up to 34 knots (39 MPH) were measured by a buoy near Lewisetta.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 14-JUL-21 17:42:00 to 14-JUL-21 17:42:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 34.00 EG
Reported by: Buoy

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a buoy near Cove Point.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 14-JUL-21 17:42:00 to 14-JUL-21 17:42:00 (EST-5)
Location: ST INIGOES (KNUI)
Magnitude: 38.00 MG
Reported by: ASOS

A wind gust of 38 knots (44 MPH) was measured by the ASOS at Saint Inigoes (KNUI).

Waterspout in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 14-JUL-21 17:46:00 to 14-JUL-21 17:46:00 (EST-5)
Location: LEWISETTA (LWS)
Reported by: Trained Spotter

A trained spotter near Lewisetta reported a large waterspout just north of Sandy Point over the tidal Potomac River.

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 14-JUL-21 17:48:00 to 14-JUL-21 17:48:00 (EST-5)
Location: SOLOMONS ISLAND (SLIM2)
Magnitude: 34.00 EG
Reported by: Buoy

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a buoy near Solomons Island.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 14-JUL-21 17:49:00 to 14-JUL-21 18:09:00 (EST-5)
Location: POINT LOOKOUT (PTL)
Magnitude: 41.00 MG
Reported by: Buoy

Wind gusts of up to 41 knots (47 MPH) were measured by a buoy near Point Lookout.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 14-JUL-21 17:52:00 to 14-JUL-21 17:52:00 (EST-5)
Location: PATUXENT RIVER ASOS (KNHK)
Magnitude: 39.00 MG
Reported by: ASOS

A wind gust of 39 knots (45 MPH) was measured by the ASOS at Patuxent River Naval Air Station (KNHK).

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 14-JUL-21 18:03:00 to 14-JUL-21 18:18:00 (EST-5)
Location: LOWER HOOPER ISLAND (HPR)
Magnitude: 42.00 MG
Reported by: Buoy

Wind gusts of up to 42 knots (48 MPH) were measured by a buoy near Hooper Island.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 14-JUL-21 18:12:00 to 14-JUL-21 18:42:00 (EST-5)
Location: BISHOPS HEAD (BISM2)
Magnitude: 37.00 MG
Reported by: Buoy

Wind gusts of up to 37 knots (43 MPH) were measured by a buoy near Bishops Head Pier.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 14-JUL-21 18:31:00 to 14-JUL-21 18:41:00 (EST-5)
Location: CRISFIELD CG (CRS)
Magnitude: 34.00 MG
Reported by: Buoy

Wind gusts of up to 34 knots (39 MPH) were measured by a buoy near Crisfield.