Thunderstorms developed along and ahead of a pressure trough, producing gusty winds over portions of the tidal Potomac River and Chesapeake Bay.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 27-AUG-21 16:06:00 to 27-AUG-21 16:18:00 (EST-5)
Location: BALTIMORE KEY BRIDGE (FSKM2)
Magnitude: 39.00 MG
Reported by: Buoy

Wind gusts of up to 39 knots (45 MPH) were measured by a buoy near Francis Scott Key Bridge.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 27-AUG-21 16:08:00 to 27-AUG-21 16:18:00 (EST-5)
Location: BALTIMORE KEY BRIDGE (FSKM2)
Magnitude: 44.00 MG
Reported by: Mesonet

Wind gusts of up to 44 knots (51 MPH) were measured by a mesonet on I-695 Francis Scott Key Bridge.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 27-AUG-21 16:22:00 to 27-AUG-21 16:22:00 (EST-5)
Location: ANNAPOLIS (KNAK)
Magnitude: 36.00 MG
Reported by: ASOS

A wind gust of 36 knots (41 MPH) was measured by the ASOS at the U.S. Naval Academy in Annapolis adjacent to the Chesapeake Bay.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 27-AUG-21 16:24:00 to 27-AUG-21 16:24:00 (EST-5)
Location: ANNAPOLIS MD (APAM2)
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 27-AUG-21 16:25:00 to 27-AUG-21 16:25:00 (EST-5)
Location: GREENBURY POINT (GBY)
Magnitude: 34.00 MG
Reported by: Buoy

A wind gust of 34 knots (39 MPH) was measured by a buoy near Greenbury Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 27-AUG-21 16:30:00 to 27-AUG-21 16:30:00 (EST-5)
Location: ANNAPOLIS BUOY (44063)
Magnitude: 49.00 MG
Reported by: Buoy

A wind gust of 49 knots (56 MPH) was measured by a buoy near Annapolis.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 27-AUG-21 16:37:00 to 27-AUG-21 16:37:00 (EST-5)
Location: (KW29)BAY BRIDGE AIRPORT
Magnitude: 34.00 EG
Reported by: Mesonet

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a mesonet on the US-50/US-301 Chesapeake Bay Bridge.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 27-AUG-21 17:55:00 to 27-AUG-21 17:55:00 (EST-5)
Location: THOMAS POINT (TPLM2)
Magnitude: 34.00 MG
Reported by: Mesonet

A wind gust of 34 knots (39 MPH) was measured by a mesonet on Thomas Point Road adjacent to the Chesapeake Bay.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 27-AUG-21 17:55:00 to 27-AUG-21 17:55:00 (EST-5)
Location: THOMAS POINT (TPLM2)
Magnitude: 43.00 MG
Reported by: Buoy

A wind gust of 43 knots (49 MPH) was measured by a buoy near Thomas Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 27-AUG-21 18:00:00 to 27-AUG-21 18:00:00 (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 CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 27-AUG-21 18:00:00 to 27-AUG-21 18:06:00 (EST-5)
Location: GOOSES REEF BUOY (44062)
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 27-AUG-21 18:13:00 to 27-AUG-21 18:13:00 (EST-5)
Location: ANNAPOLIS (KNAK)
Magnitude: 36.00 MG
Reported by: Mesonet

A wind gust of 36 knots (41 MPH) was measured by a mesonet on the US-50/US-301 Chesapeake Bay Bridge.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 27-AUG-21 18:15:00 to 27-AUG-21 18:15:00 (EST-5)
Location: KENT POINT MD (KPTM2)
Magnitude: 36.00 MG
Reported by: Mesonet

A wind gust of 36 knots (41 MPH) was measured by a mesonet on the MD-33 Knapps Narrows Drawbridge.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 27-AUG-21 21:23:00 to 27-AUG-21 21:23:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 34.00 EG
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 CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 27-AUG-21 21:42:00 to 27-AUG-21 21:42:00 (EST-5)
Location: GOOSES REEF BUOY (44062)
Magnitude: 34.00 EG
Reported by: Broadcast Media

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

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 27-AUG-21 21:43:00 to 27-AUG-21 21:43:00 (EST-5)
Location: MONROE CREEK (MON)
Magnitude: 34.00 MG
Reported by: Broadcast Media

A wind gust of 34 knots (39 MPH) was measured by a buoy near Monroe Creek.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 27-AUG-21 21:52:00 to 27-AUG-21 21:57:00 (EST-5)
Location: COBB POINT (COB)
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 27-AUG-21 22:35:00 to 27-AUG-21 22:40:00 (EST-5)
Location: LOWER HOOPER ISLAND (HPR)
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 27-AUG-21 23:10:00 to 27-AUG-21 23:15:00 (EST-5)
Location: CRISFIELD CG (CRS)
Magnitude: 37.00 MG
Reported by: Buoy

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