Several rounds of strong to severe thunderstorms moved from northern Virginia across the tidal Potomac River, central and southern Maryland and into the Maryland portion of the Chesapeake Bay during the afternoon and evening hours of Monday, July 20th, 2020.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 20-JUL-20 18:15:00 to 20-JUL-20 18:15:00 (EST-5)
Location: (KW29)BAY BRIDGE AIRPORT
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

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

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 20-JUL-20 18:32:00 to 20-JUL-20 19:12:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Wind gusts of 34 to 40 knots (39 to 46 MPH) were measured by a buoy near Potomac Light.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 20-JUL-20 18:42:00 to 20-JUL-20 18:47:00 (EST-5)
Location: BABER POINT (BAB)
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

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

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 20-JUL-20 18:46:00 to 20-JUL-20 18:46:00 (EST-5)
Location: BABER POINT (BAB)
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
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 20-JUL-20 19:00:00 to 20-JUL-20 19:05:00 (EST-5)
Location: MONROE CREEK (MON)
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Wind gusts of 34 knots (39 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 20-JUL-20 19:04:00 to 20-JUL-20 19:04:00 (EST-5)
Location: COBB POINT (COB)
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

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

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 20-JUL-20 19:43:00 to 20-JUL-20 19:43:00 (EST-5)
Location: BABER POINT (BAB)
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a buoy near Dahlgren (T70).

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 20-JUL-20 19:47:00 to 20-JUL-20 19:47:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

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

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 20-JUL-20 19:13:00 to 20-JUL-20 19:13:00 (EST-5)
Location: CHESAPEAKE BIOLOGICAL LABORATORY (CBIM2)
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 36 knots (41 MPH) was measured by a mesonet near MD-4 Governor Thomas Johnson Bridge.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 20-JUL-20 19:20:00 to 20-JUL-20 19:20:00 (EST-5)
Location: GEORGE MASON ES (ALXD2)
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 36 knots (41 MPH) was measured at George Mason Elementary School.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 20-JUL-20 17:45:00 to 20-JUL-20 17:55:00 (EST-5)
Location: LEESYLVANIA STATE PARK (LSLVN)
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Wind gusts of 34 to 35 knots (39 to 40 MPH) were measured by a buoy in Occoquan Bay.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 20-JUL-20 17:45:00 to 20-JUL-20 18:00:00 (EST-5)
Location: SHADY SIDE ES (SHADY)
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts of 34 to 43 knots (39 to 49 MPH) were measured by a mesonet near Galesville.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 20-JUL-20 17:53:00 to 20-JUL-20 17:58:00 (EST-5)
Location: TOLLY POINT (TOL)
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Wind gusts of 34 to 39 knots (39 to 45 MPH) were measured by a buoy near Tolly Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 20-JUL-20 18:00:00 to 20-JUL-20 18:15:00 (EST-5)
Location: THOMAS POINT (TPLM2)
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Wind gusts of 34 to 39 knots (39 to 45 MPH) were measured by a buoy near Thomas Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 20-JUL-20 18:15:00 to 20-JUL-20 18:15:00 (EST-5)
Location: (KW29)BAY BRIDGE AIRPORT
Magnitude: 34.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near the AWOS at Bay Bridge Airport (KW29).