Scattered thunderstorms produced gusty winds during the afternoon hours.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 21-JUL-21 12:13:00 to 21-JUL-21 12:15:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 44.00 MG
Reported by: ASOS

Wind gusts of up to 44 knots (51 MPH) were measured by the ASOS at Ronald Reagan Washington National Airport (KDCA).

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 21-JUL-21 12:14:00 to 21-JUL-21 12:14:00 (EST-5)
Location: ALEXANDRIA COUNTRY DAY (ALXNC)
Magnitude: 36.00 MG
Reported by: Mesonet

A wind gust of 36 knots (41 MPH) was measured by a mesonet at Alexandria Country Day School adjacent to the upper tidal Potomac River.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 21-JUL-21 12:15:00 to 21-JUL-21 12:15:00 (EST-5)
Location: GEORGE MASON ES (ALXD2)
Magnitude: 40.00 MG
Reported by: Mesonet

A wind gust of 40 knots (46 MPH) was measured by a mesonet at George Mason Elementary School adjacent to the upper tidal Potomac River.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 21-JUL-21 12:25:00 to 21-JUL-21 12:25:00 (EST-5)
Location: UPPER POTOMAC BUOY (44061)
Magnitude: 34.00 MG
Reported by: Mesonet

A wind gust of 34 knots (39 MPH) was measured by a mesonet at the I-95/I-495 Capital Beltway/I-295 Anacostia Freeway interchange adjacent to the upper tidal Potomac River.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 21-JUL-21 12:39:00 to 21-JUL-21 12:39:00 (EST-5)
Location: UPPER POTOMAC BUOY (44061)
Magnitude: 36.00 MG
Reported by: Mesonet

A wind gust of 36 knots (41 MPH) was measured by a mesonet at Flintstone Elementary School adjacent to the upper tidal Potomac River.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 21-JUL-21 13:30:00 to 21-JUL-21 13:42:00 (EST-5)
Location: GOOSES REEF BUOY (44062)
Magnitude: 41.00 MG
Reported by: Buoy

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

Marine Thunderstorm Wind in CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 21-JUL-21 13:37:00 to 21-JUL-21 13:47:00 (EST-5)
Location: BLACKWALNUT HARBOR (BWH)
Magnitude: 56.00 MG
Reported by: Buoy

Wind gusts of up to 56 knots (64 MPH) were measured by a buoy in Blackwalnut Harbor.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 21-JUL-21 13:42:00 to 21-JUL-21 14:06:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 44.00 MG
Reported by: Buoy

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

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 21-JUL-21 13:58:00 to 21-JUL-21 14:03:00 (EST-5)
Location: CHESAPEAKE BIOLOGICAL LABORATORY (CBIM2)
Magnitude: 41.00 MG
Reported by: Mesonet

Wind gusts of up to 41 knots (47 MPH) were measured by a mesonet at the Thomas Johnson Bridge.

Marine Thunderstorm Wind in CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 21-JUL-21 14:00:00 to 21-JUL-21 14:10:00 (EST-5)
Location: CAMBRIDGE (CAMM2)
Magnitude: 38.00 MG
Reported by: Mesonet

A wind gust of 38 knots (44 MPH) was measured by a mesonet on US-50 at the Choptank River.

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 21-JUL-21 14:00:00 to 21-JUL-21 14:00:00 (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 CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 21-JUL-21 14:06:00 to 21-JUL-21 14:06:00 (EST-5)
Location: CAMBRIDGE (CAMM2)
Magnitude: 35.00 MG
Reported by: Buoy

A wind gust of 35 knots (40 MPH) was measured by a buoy near Cambridge.

Marine Thunderstorm Wind in CHESAPEAKE BAY N OF POOLES IS MD, ATLANTIC NORTH
From 21-JUL-21 14:34:00 to 21-JUL-21 14:34:00 (EST-5)
Location: SUSQUEHANNA RIVER BUOY (44057)
Magnitude: 34.00 EG
Reported by: Mesonet

A gust front produced an estimated wind gust to 34 knots (39 MPH) near a mesonet near the US-40 Hatem Bridge.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 21-JUL-21 14:41:00 to 21-JUL-21 14:41:00 (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 TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 21-JUL-21 15:43:00 to 21-JUL-21 15:43:00 (EST-5)
Location: QUANTICO (KNYG)
Magnitude: 34.00 EG
Reported by: ASOS

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near the ASOS at Quantico Marine Base (KNYG).

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 21-JUL-21 16:33:00 to 21-JUL-21 16:33:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 37.00 MG
Reported by: Buoy

A wind gust of 37 knots (43 MPH) was measured by a buoy near Potomac Light.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 21-JUL-21 16:34:00 to 21-JUL-21 16:39:00 (EST-5)
Location: BABER POINT (BAB)
Magnitude: 40.00 MG
Reported by: Buoy

Wind gusts of up to 40 knots (46 MPH) were measured by a buoy near Dahlgren.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 21-JUL-21 16:37:00 to 21-JUL-21 16:42:00 (EST-5)
Location: BABER POINT (BAB)
Magnitude: 38.00 MG
Reported by: Buoy

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

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 21-JUL-21 16:48:00 to 21-JUL-21 16:48:00 (EST-5)
Location: MONROE CREEK (MON)
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 21-JUL-21 12:10:00 to 21-JUL-21 12:10:00 (EST-5)
Location: LONG BRANCH ES (ARLNL)
Magnitude: 37.00 MG
Reported by: Mesonet

A wind gust of 37 knots (43 MPH) was measured by a mesonet at Hoffman-Boston Elementary School adjacent to the upper tidal Potomac River.