Multiple lines of severe thunderstorms produced gusty winds over the tidal Potomac River and Chesapeake Bay, and a brief waterspout as a tornado crossed the upper tidal Potomac River between Arlington and DC.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 01-JUL-21 13:42:00 to 01-JUL-21 13:42:00 (EST-5)
Location: BABER POINT (BAB)
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 01-JUL-21 13:43:00 to 01-JUL-21 13:53:00 (EST-5)
Location: BABER POINT (BAB)
Magnitude: 37.00 MG
Reported by: Buoy

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

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 01-JUL-21 13:43:00 to 01-JUL-21 13:53:00 (EST-5)
Location: MONROE CREEK (MON)
Magnitude: 42.00 MG
Reported by: Broadcast Media

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

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 01-JUL-21 13:47:00 to 01-JUL-21 13:47:00 (EST-5)
Location: BABER POINT (BAB)
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 01-JUL-21 13:53:00 to 01-JUL-21 13:58:00 (EST-5)
Location: CUCKOLD CREEK (CCK)
Magnitude: 35.00 MG
Reported by: Buoy

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

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 01-JUL-21 13:53:00 to 01-JUL-21 14:08:00 (EST-5)
Location: COBB POINT (COB)
Magnitude: 41.00 MG
Reported by: Buoy

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

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 01-JUL-21 14:03:00 to 01-JUL-21 14:08:00 (EST-5)
Location: CUCKOLD CREEK (CCK)
Magnitude: 34.00 EG
Reported by: Mesonet

A thunderstorm produced estimated wind gusts to 34 knots (39 MPH) near a mesonet on Cobb Island adjacent to the tidal Potomac River.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 01-JUL-21 14:04:00 to 01-JUL-21 14:04:00 (EST-5)
Location: LEESYLVANIA STATE PARK (LSLVN)
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 01-JUL-21 14:09:00 to 01-JUL-21 14:09:00 (EST-5)
Location: WEST POTOMAC HS (ALEXD)
Magnitude: 39.00 MG
Reported by: Mesonet

A wind gust of 39 knots (45 MPH) was measured by a mesonet at West Potomac High School in Alexandria adjacent to the upper tidal Potomac River.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 01-JUL-21 14:10:00 to 01-JUL-21 14:10:00 (EST-5)
Location: UPPER POTOMAC BUOY (44061)
Magnitude: 35.00 MG
Reported by: Mesonet

A wind gust of 35 knots (40 MPH) was measured by a mesonet at the I-95/I-495 Capital Beltway/I-295 interchange adjacent to the upper tidal Potomac River.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 01-JUL-21 14:10:00 to 01-JUL-21 14:20:00 (EST-5)
Location: NATIONALS PARK (WSHNP)
Magnitude: 43.00 MG
Reported by: Mesonet

Wind gusts of 43 knots (49 MPH) were measured by a mesonet at Nationals Park adjacent to the upper tidal Potomac River.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 01-JUL-21 14:12:00 to 01-JUL-21 14:12:00 (EST-5)
Location: WASHINGTON DC (WASD2)
Magnitude: 35.00 MG
Reported by: Buoy

A wind gust of 35 knots (40 MPH) was measured by a buoy in Washington Channel.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 14:12:00 to 01-JUL-21 14:12:00 (EST-5)
Location: SANDY POINT (SPT)
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 14:13:00 to 01-JUL-21 14:13:00 (EST-5)
Location: TOLLY POINT (TOL)
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 01-JUL-21 14:16:00 to 01-JUL-21 14:16:00 (EST-5)
Location: GEORGE MASON ES (ALXD2)
Magnitude: 35.00 MG
Reported by: Mesonet

A wind gust of 35 knots (40 MPH) was measured by a mesonet at George Mason Elementary School in Alexandria adjacent to the upper tidal Potomac River.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 01-JUL-21 14:16:00 to 01-JUL-21 14:16:00 (EST-5)
Location: WASHINGTON DC (WASD2)
Magnitude: 36.00 MG
Reported by: Mesonet

A wind gust of 36 knots (41 MPH) was measured by a mesonet near DC Southwest Waterfront.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 01-JUL-21 14:34:00 to 01-JUL-21 14:39:00 (EST-5)
Location: LOWER HOOPER ISLAND (HPR)
Magnitude: 35.00 MG
Reported by: Buoy

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

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 01-JUL-21 14:34:00 to 01-JUL-21 14:34:00 (EST-5)
Location: CHESAPEAKE BIOLOGICAL LABORATORY (CBIM2)
Magnitude: 42.00 MG
Reported by: Mesonet

A wind gust of 42 knots (48 MPH) was measured by a mesonet at Thomas Johnson Bridge.

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 01-JUL-21 14:42:00 to 01-JUL-21 14:42:00 (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 01-JUL-21 14:45:00 to 01-JUL-21 14:45:00 (EST-5)
Location: PATUXENT RIVER ASOS (KNHK)
Magnitude: 34.00 EG
Reported by: ASOS

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near the ASOS at Patuxent River Naval Air Station.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 14:46:00 to 01-JUL-21 15:06:00 (EST-5)
Location: GREENBURY POINT (GBY)
Magnitude: 50.00 MG
Reported by: Buoy

Wind gusts of up to 50 knots (58 MPH) were measured by a buoy near Greenbury Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 14:48:00 to 01-JUL-21 15:03:00 (EST-5)
Location: TOLLY POINT (TOL)
Magnitude: 41.00 MG
Reported by: Buoy

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

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 01-JUL-21 14:48:00 to 01-JUL-21 14:48:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 39.00 MG
Reported by: Buoy

A wind gust of 39 knots (45 MPH) was measured by a buoy near Cove Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 14:49:00 to 01-JUL-21 14:54:00 (EST-5)
Location: HERRING BAY (HRB)
Magnitude: 39.00 MG
Reported by: Buoy

Wind gusts of up to 39 knots (45 MPH) were measured by a buoy in Herring Bay.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 14:51:00 to 01-JUL-21 14:51:00 (EST-5)
Location: THOMAS POINT (TPLM2)
Magnitude: 40.00 MG
Reported by: Buoy

A wind gust of 40 knots (46 MPH) was measured by a buoy near Saunders Point Light.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 14:52:00 to 01-JUL-21 15:07:00 (EST-5)
Location: SANDY POINT (SPT)
Magnitude: 43.00 MG
Reported by: Buoy

Wind gusts of up to 43 knots (49 MPH) were measured by a buoy near Sandy Point.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 01-JUL-21 14:54:00 to 01-JUL-21 15:00:00 (EST-5)
Location: BISHOPS HEAD (BISM2)
Magnitude: 38.00 MG
Reported by: Buoy

Wind gusts of up to 38 knots (44 MPH) were measured by a buoy near Bishops Head Pier.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 14:54:00 to 01-JUL-21 15:06:00 (EST-5)
Location: ANNAPOLIS MD (APAM2)
Magnitude: 36.00 MG
Reported by: Buoy

Wind gusts of up to 36 knots (41 MPH) were measured by a buoy near Annapolis.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 01-JUL-21 14:59:00 to 01-JUL-21 14:59:00 (EST-5)
Location: LOWER HOOPER ISLAND (HPR)
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 15:00:00 to 01-JUL-21 15:00:00 (EST-5)
Location: KENT POINT MD (KPTM2)
Magnitude: 42.00 MG
Reported by: Mesonet

A wind gust of 42 knots (48 MPH) was measured by a mesonet at Lowes Wharf.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 15:00:00 to 01-JUL-21 15:00:00 (EST-5)
Location: KENT POINT MD (KPTM2)
Magnitude: 48.00 MG
Reported by: Mesonet

A wind gust of 48 knots (55 MPH) was measured by a mesonet on MD-33 Tilghman Island Road at Knapps Narrows.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 15:00:00 to 01-JUL-21 15:06:00 (EST-5)
Location: THOMAS POINT (TPLM2)
Magnitude: 55.00 MG
Reported by: Buoy

Wind gusts of up to 55 knots (63 MPH) were measured by a buoy near Thomas Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 15:02:00 to 01-JUL-21 15:02:00 (EST-5)
Location: KENT ISLAND (KNT)
Magnitude: 37.00 MG
Reported by: Buoy

A wind gust of 37 knots (43 MPH) was measured by a mesonet near Wiggins.

Marine Thunderstorm Wind in CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 01-JUL-21 15:03:00 to 01-JUL-21 15:13:00 (EST-5)
Location: BLACKWALNUT HARBOR (BWH)
Magnitude: 39.00 MG
Reported by: Buoy

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

Marine Thunderstorm Wind in EASTERN BAY, ATLANTIC NORTH
From 01-JUL-21 15:05:00 to 01-JUL-21 15:25:00 (EST-5)
Location: US-50 (MD040)
Magnitude: 39.00 MG
Reported by: Mesonet

Wind gusts of up to 39 knots (45 MPH) were measured by a mesonet near Grasonville.

Marine Thunderstorm Wind in CHESAPEAKE BAY N OF POOLES IS MD, ATLANTIC NORTH
From 01-JUL-21 15:06:00 to 01-JUL-21 15:06:00 (EST-5)
Location: GROVE POINT (GVP)
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 15:06:00 to 01-JUL-21 15:06:00 (EST-5)
Location: ANNAPOLIS BUOY (44063)
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 15:07:00 to 01-JUL-21 15:07:00 (EST-5)
Location: (KW29)BAY BRIDGE AIRPORT
Magnitude: 57.00 MG
Reported by: Mesonet

A wind gust of 57 knots (66 MPH) was measured by a mesonet on the east side of the US-50/US-301 Chesapeake Bay Bridge.

Marine Thunderstorm Wind in CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 01-JUL-21 15:12:00 to 01-JUL-21 15:24:00 (EST-5)
Location: CAMBRIDGE (CAMM2)
Magnitude: 52.00 MG
Reported by: Buoy

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

Marine Thunderstorm Wind in EASTERN BAY, ATLANTIC NORTH
From 01-JUL-21 15:15:00 to 01-JUL-21 15:15:00 (EST-5)
Location: US-50 (MD040)
Magnitude: 40.00 MG
Reported by: Mesonet

A wind gust of 40 knots (46 MPH) was measured by a mesonet in near Crab Alley Bay.

Marine Thunderstorm Wind in EASTERN BAY, ATLANTIC NORTH
From 01-JUL-21 15:15:00 to 01-JUL-21 15:15:00 (EST-5)
Location: US-50 (MD040)
Magnitude: 34.00 MG
Reported by: Mesonet

A wind gust of 34 knots (39 MPH) was measured by a mesonet near Prospect Bay.

Marine Thunderstorm Wind in EASTERN BAY, ATLANTIC NORTH
From 01-JUL-21 15:15:00 to 01-JUL-21 15:15:00 (EST-5)
Location: US-50 (MD040)
Magnitude: 39.00 MG
Reported by: Mesonet

A wind gust of 39 knots (45 MPH) was measured by a mesonet near Piney Point on Eastern Bay.

Marine Thunderstorm Wind in CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 01-JUL-21 15:15:00 to 01-JUL-21 15:15:00 (EST-5)
Location: CAMBRIDGE (CAMM2)
Magnitude: 52.00 MG
Reported by: AWOS

A wind gust of 52 knots (60 MPH) was measured by the AWOS at Cambridge-Dorchester Regional Airport adjacent to the tidal Choptank River.

Marine Thunderstorm Wind in CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 01-JUL-21 15:20:00 to 01-JUL-21 15:20:00 (EST-5)
Location: CAMBRIDGE (CAMM2)
Magnitude: 51.00 MG
Reported by: Mesonet

A wind gust of 51 knots (59 MPH) was measured by a mesonet on US-50 Ocean Gateway over the Choptank River.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 01-JUL-21 15:27:00 to 01-JUL-21 15:33:00 (EST-5)
Location: CRISFIELD CG (CRS)
Magnitude: 34.00 EG
Reported by: Broadcast Media

A thunderstorm produced estimated wind gusts to 34 knots (39 MPH) near a buoy near Crisfield.

Marine Thunderstorm Wind in CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 01-JUL-21 15:31:00 to 01-JUL-21 15:31:00 (EST-5)
Location: CAMBRIDGE (CAMM2)
Magnitude: 34.00 EG
Reported by: Mesonet

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a mesonet near Cambridge adjacent to the tidal Choptank River.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 01-JUL-21 16:00:00 to 01-JUL-21 16:00:00 (EST-5)
Location: LEWISETTA MD (LWTV2)
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 01-JUL-21 16:07:00 to 01-JUL-21 16:22:00 (EST-5)
Location: CRISFIELD CG (CRS)
Magnitude: 52.00 MG
Reported by: Buoy

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

Marine Thunderstorm Wind in CHESTER RIVER TO QUEENSTOWN MD, ATLANTIC NORTH
From 01-JUL-21 15:05:00 to 01-JUL-21 15:05:00 (EST-5)
Location: US-50 (MD040)
Magnitude: 47.00 MG
Reported by: Mesonet

A wind gust of 47 knots (54 MPH) was measured by a mesonet on US-50/US-301 Kent Narrows Bridge.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 14:55:00 to 01-JUL-21 14:55:00 (EST-5)
Location: ST MARYS ES (ANNAS)
Magnitude: 40.00 MG
Reported by: Mesonet

A wind gust of 40 knots (46 MPH) was measured by a mesonet at the US-50/US-301 John Hanson Highway/MD-2 Solomons Island Road interchange adjacent to the Chesapeake Bay.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 01-JUL-21 14:04:00 to 01-JUL-21 14:04:00 (EST-5)
Location: WOODLAWN ES (ALVND)
Magnitude: 44.00 MG
Reported by: ASOS

A wind gust of 44 knots (51 MPH) was measured by the ASOS at Davison Army Airfield (KDAA) at Fort Belvoir adjacent to the upper tidal Potomac River.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 01-JUL-21 16:09:00 to 01-JUL-21 16:19:00 (EST-5)
Location: POINT LOOKOUT (PTL)
Magnitude: 44.00 MG
Reported by: Buoy

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

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 01-JUL-21 16:34:00 to 01-JUL-21 16:44:00 (EST-5)
Location: LOWER HOOPER ISLAND (HPR)
Magnitude: 44.00 MG
Reported by: Buoy

Wind gusts of up to 44 knots (51 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 01-JUL-21 16:36:00 to 01-JUL-21 16:48:00 (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.

Waterspout in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 01-JUL-21 20:03:00 to 01-JUL-21 20:03:00 (EST-5)
Location: WISCONSIN AVE (GTND2)
Reported by: NWS Storm Survey

A tornado crossed the upper tidal Potomac River between Arlington, Virginia, and Washington, DC, just south of the I-66/US-50 Theodore Roosevelt Memorial Bridge.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 01-JUL-21 20:05:00 to 01-JUL-21 20:05:00 (EST-5)
Location: CORA KELLY ES (ALXDR)
Magnitude: 34.00 EG
Reported by: Mesonet

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a mesonet near a school in Arlington adjacent to the upper tidal Potomac River.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 01-JUL-21 20:06:00 to 01-JUL-21 20:12:00 (EST-5)
Location: WASHINGTON DC (WASD2)
Magnitude: 43.00 MG
Reported by: Buoy

Wind gusts of up to 43 knots (49 MPH) were measured by a buoy in Washington Channel.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 01-JUL-21 20:06:00 to 01-JUL-21 20:06:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 45.00 MG
Reported by: ASOS

A wind gust of 45 knots (52 MPH) was measured by the ASOS at Ronald Reagan Washington National Airport (KDCA) adjacent to the upper tidal Potomac River.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 01-JUL-21 20:09:00 to 01-JUL-21 20:09:00 (EST-5)
Location: WASHINGTON DC (WASD2)
Magnitude: 36.00 MG
Reported by: Mesonet

A wind gust of 36 knots (41 MPH) was measured by a mesonet near DC Southwest Waterfront.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 01-JUL-21 20:10:00 to 01-JUL-21 20:10:00 (EST-5)
Location: NATIONALS PARK (WSHNP)
Magnitude: 46.00 MG
Reported by: Mesonet

A wind gust of 46 knots (53 MPH) was measured by a mesonet at Nationals Park.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 20:54:00 to 01-JUL-21 20:54:00 (EST-5)
Location: ANNAPOLIS BUOY (44063)
Magnitude: 34.00 EG
Reported by: Buoy

A thunderstorm produced an estimated wind gust of 34 knots (39 MPH) near a buoy near Annapolis.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 01-JUL-21 21:00:00 to 01-JUL-21 21:00:00 (EST-5)
Location: THOMAS POINT (TPLM2)
Magnitude: 38.00 MG
Reported by: Buoy

A wind gust of 38 knots (44 MPH) was measured by a buoy near Thomas Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 01-JUL-21 21:18:00 to 01-JUL-21 21:18:00 (EST-5)
Location: TOLCHESTER MD (TCBM2)
Magnitude: 34.00 EG
Reported by: Buoy

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