A southwest flow caused hot and humid conditions over the area. A pressure trough triggered showers and thunderstorms, and produced gusty winds due to the unstable atmosphere.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 17-AUG-16 20:19:00 to 17-AUG-16 20:19:00 (EST-5)
Location: NATIONALS PARK (WSHNP)
Magnitude: 39.00 MG
Reported by: Mesonet

A wind gust of 39 knots was reported at Washington Nationals Park.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 17-AUG-16 19:59:00 to 17-AUG-16 20:09:00 (EST-5)
Location: LEESYLVANIA STATE PARK (LSLVN)
Magnitude: 37.00 MG
Reported by: Mesonet

A wind gust of 37 knots was reported at Occoquan.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 17-AUG-16 20:11:00 to 17-AUG-16 20:11:00 (EST-5)
Location: FEATHERSTONE ES (WDBRE)
Magnitude: 50.00 EG
Reported by: Unknown

Wind gusts around 50 knots were estimated due to damage nearby in Potomac Heights.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 17-AUG-16 20:16:00 to 17-AUG-16 20:16:00 (EST-5)
Location: MONROE CREEK (MON)
Magnitude: 40.00 MG
Reported by: Buoy

A wind gust of 40 knots was reported at Monroe Creek.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 17-AUG-16 20:20:00 to 17-AUG-16 20:20:00 (EST-5)
Location: BABAR POINT (BAB)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts in excess of 30 knots were reported at Pylons.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 17-AUG-16 20:28:00 to 17-AUG-16 20:33:00 (EST-5)
Location: COBB POINT (COB)
Magnitude: 34.00 EG
Reported by: Buoy

Wind gusts in excess of 30 knots were reported at Cobb Point.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 17-AUG-16 20:36:00 to 17-AUG-16 20:36:00 (EST-5)
Location: PINEY POINT (PPTM2)
Magnitude: 34.00 MG
Reported by: Buoy

A wind gust of 34 knots was reported at Piney Point.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 17-AUG-16 20:36:00 to 17-AUG-16 20:48:00 (EST-5)
Location: LEWISETTA MD (LWTV2)
Magnitude: 34.00 EG
Reported by: Buoy

Wind gusts up to 37 knots were reported at Lewisetta.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 17-AUG-16 20:50:00 to 17-AUG-16 20:55:00 (EST-5)
Location: HERRING BAY (HRB)
Magnitude: 44.00 MG
Reported by: Buoy

Wind gusts up to 44 knots were reported at Herring Bay.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 17-AUG-16 20:54:00 to 17-AUG-16 20:59:00 (EST-5)
Location: GREENBERRY POINT (GBY)
Magnitude: 38.00 MG
Reported by: Buoy

A wind gust of 38 knots was reported at Greenberry Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 17-AUG-16 20:58:00 to 17-AUG-16 20:58:00 (EST-5)
Location: THOMAS POINT (TPLM2)
Magnitude: 54.00 MG
Reported by: Buoy

A wind gust of 54 knots was reported at Thomas Point Lighthouse.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 17-AUG-16 21:00:00 to 17-AUG-16 21:00:00 (EST-5)
Location: (KW29)BAY BRIDGE AIRPORT
Magnitude: 37.00 MG
Reported by: Buoy

A wind gust of 37 knots was reported at the Bay Bridge.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 17-AUG-16 21:01:00 to 17-AUG-16 21:01:00 (EST-5)
Location: TOLLY POINT (TOL)
Magnitude: 40.00 MG
Reported by: Buoy

A wind gust of 40 knots was reported at the Bay Bridge.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 17-AUG-16 21:01:00 to 17-AUG-16 21:01:00 (EST-5)
Location: SANDY POINT (SPT)
Magnitude: 34.00 EG
Reported by: Buoy

Wind gusts in excess of 30 knots were reported at Sandy Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 17-AUG-16 21:10:00 to 17-AUG-16 21:15:00 (EST-5)
Location: KENT POINT MD (KPTM2)
Magnitude: 37.00 MG
Reported by: Buoy

A wind gust of 37 knots was reported at Black Walnut Harbor.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 17-AUG-16 21:30:00 to 17-AUG-16 21:30:00 (EST-5)
Location: GOOSES REEF BUOY (44062)
Magnitude: 34.00 EG
Reported by: Buoy

A wind gusts in excess of 30 knots was reported at Gooses Reef.

Marine Thunderstorm Wind in CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 17-AUG-16 21:48:00 to 17-AUG-16 22:00:00 (EST-5)
Location: CAMBRIDGE (CAMM2)
Magnitude: 39.00 MG
Reported by: Buoy

Wind gusts up to 39 knots were reported at Cambridge.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 17-AUG-16 20:51:00 to 17-AUG-16 20:51:00 (EST-5)
Location: ST INIGOES (KNUI)
Magnitude: 34.00 MG
Reported by: AWOS

A wind gusts of 34 knots was reported at St. Inigoes.

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 17-AUG-16 20:59:00 to 17-AUG-16 20:59:00 (EST-5)
Location: LOWER HOOPERS ISLAND (HPR)
Magnitude: 39.00 MG
Reported by: AWOS

Wind gusts up to 39 knots were reported at Patuxent River.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 17-AUG-16 21:00:00 to 17-AUG-16 21:00:00 (EST-5)
Location: POTOMAC POINT LOOKOUT BUOY (44042)
Magnitude: 34.00 EG
Reported by: AWOS

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

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 17-AUG-16 21:05:00 to 17-AUG-16 21:20:00 (EST-5)
Location: LOWER HOOPERS ISLAND (HPR)
Magnitude: 48.00 MG
Reported by: Buoy

Wind gusts up to 48 knots were reported at Hooper Island.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 17-AUG-16 21:18:00 to 17-AUG-16 21:24:00 (EST-5)
Location: BISHOPS HEAD (BISM2)
Magnitude: 48.00 MG
Reported by: Buoy

Wind gusts up to 48 knots were reported at Bishops Head.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 17-AUG-16 20:03:00 to 17-AUG-16 20:03:00 (EST-5)
Location: QUANTICO (KNYG)
Magnitude: 40.00 MG
Reported by: AWOS

A wind gust of 40 knots was measured at Quantico.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 17-AUG-16 20:10:00 to 17-AUG-16 20:10:00 (EST-5)
Location: UPPER POTOMAC BUOY (44061)
Magnitude: 34.00 EG
Reported by: Buoy

Wind gusts in excess of 30 knots were reported at the Upper Potomac Buoy.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 17-AUG-16 21:12:00 to 17-AUG-16 21:12:00 (EST-5)
Location: PATAPSCO BUOY (44043)
Magnitude: 50.00 EG
Reported by: Unknown

Wind gusts around 50 knots were estimated based on damage nearby.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 17-AUG-16 21:34:00 to 17-AUG-16 21:49:00 (EST-5)
Location: RACCOON POINT (RAC)
Magnitude: 35.00 MG
Reported by: Buoy

Wind gusts up to 35 knots were reported at Raccoon Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 17-AUG-16 21:00:00 to 17-AUG-16 21:20:00 (EST-5)
Location: PATAPSCO BUOY (44043)
Magnitude: 35.00 MG
Reported by: Buoy

Wind gusts up to 35 knots were reported at the Patapsco Buoy.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 17-AUG-16 21:24:00 to 17-AUG-16 21:30:00 (EST-5)
Location: TOLCHESTER MD (TCBM2)
Magnitude: 39.00 MG
Reported by: Buoy

Wind gusts up to 39 knots were measured at Tolchester Beach.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 17-AUG-16 20:54:00 to 17-AUG-16 20:54:00 (EST-5)
Location: CREEK ROAD (CRKM2)
Magnitude: 50.00 EG
Reported by: Unknown

Wind gusts around 50 knots were estimated based on damage nearby.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 17-AUG-16 21:10:00 to 17-AUG-16 21:10:00 (EST-5)
Location: PATAPSCO BUOY (44043)
Magnitude: 34.00 EG
Reported by: Buoy

Wind gusts in excess of 30 knots were reported at the Patapsco Buoy.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 17-AUG-16 20:02:00 to 17-AUG-16 20:02:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 36.00 MG
Reported by: ASOS

A wind gust off 36 knots was reported at Reagan National.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 17-AUG-16 20:10:00 to 17-AUG-16 20:12:00 (EST-5)
Location: WASHINGTON DC (WASD2)
Magnitude: 39.00 MG
Reported by: Mesonet

A wind gust off 39 knots was reported.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 17-AUG-16 20:12:00 to 17-AUG-16 20:12:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 34.00 EG
Reported by: ASOS

A wind gust of 35 knots was reported at Reagan National.