A strong cold front produced squalls that resulted in gale- to storm-force wind gusts.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 18-NOV-21 19:29:00 to 18-NOV-21 19:29:00 (EST-5)
Location: SHADY SIDE ES (SHADY)
Magnitude: 35.00 EG
Reported by: Mesonet

A squall produced an estimated wind gust to 35 knots (40 MPH) near a mesonet in Shady Side (FW8079) adjacent to the Chesapeake Bay.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 18-NOV-21 19:22:00 to 18-NOV-21 19:57:00 (EST-5)
Location: HART MILLER ISLAND (HRT)
Magnitude: 40.00 MG
Reported by: Buoy

Wind gusts of up to 40 knots (46 MPH) were measured by the Hart Miller Island Weatherflow sensor (XHRT).

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 18-NOV-21 19:24:00 to 18-NOV-21 19:24:00 (EST-5)
Location: HAMPSTEAD HILL ACADEMY (BLMHH)
Magnitude: 34.00 EG
Reported by: Mesonet

A squall produced an estimated wind gust to 34 knots (39 MPH) near a mesonet in Patterson Park (KMDBALTI126) adjacent to the tidal Patapsco River.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 18-NOV-21 19:25:00 to 18-NOV-21 19:25:00 (EST-5)
Location: MARYLAND SCIENCE CENTER (BLMRE)
Magnitude: 34.00 EG
Reported by: Mesonet

A squall produced an estimated wind gust to 34 knots (39 MPH) near a mesonet at the Maryland Science Center (BLMRE) adjacent to the tidal Patapsco River.

Marine Thunderstorm Wind in CHESAPEAKE BAY N OF POOLES IS MD, ATLANTIC NORTH
From 18-NOV-21 19:39:00 to 18-NOV-21 19:39:00 (EST-5)
Location: SUSQUEHANNA RIVER BUOY (44057)
Magnitude: 34.00 EG
Reported by: Mesonet

A squall produced an estimated wind gust to 34 knots (39 MPH) near a mesonet on the US-40 Hatem Bridge (MD072).

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 18-NOV-21 19:51:00 to 18-NOV-21 19:51:00 (EST-5)
Location: HERRING BAY (HRB)
Magnitude: 34.00 EG
Reported by: Buoy

A squall produced an estimated wind gust to 34 knots (39 MPH) near the Herring Bay WeatherFlow sensor (XHRB).

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 18-NOV-21 19:51:00 to 18-NOV-21 19:51:00 (EST-5)
Location: ANNAPOLIS (KNAK)
Magnitude: 41.00 MG
Reported by: Mesonet

A wind gust of 41 knots (47 MPH) was measured by a mesonet on the US-50/US-301 Chesapeake Bay Bridge (MD066).

Marine Thunderstorm Wind in CHESAPEAKE BAY N OF POOLES IS MD, ATLANTIC NORTH
From 18-NOV-21 19:58:00 to 18-NOV-21 19:58:00 (EST-5)
Location: HAVRE DE GRACE (HAVDG)
Magnitude: 34.00 EG
Reported by: Mesonet

A squall produced an estimated wind gust to 34 knots (39 MPH) near a mesonet on the US-40 Hatem Bridge (MD067).

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 18-NOV-21 19:58:00 to 18-NOV-21 20:08:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 34.00 EG
Reported by: Buoy

A squall produced estimated wind gusts to 34 knots (39 MPH) near the Potomac Light 33 WeatherFlow sensor (XLT3).

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 18-NOV-21 20:05:00 to 18-NOV-21 20:05:00 (EST-5)
Location: KENT POINT MD (KPTM2)
Magnitude: 37.00 MG
Reported by: Mesonet

A wind gust of 37 knots (43 MPH) was measured by a mesonet on the MD-33 Knapps Narrows Drawbridge (MD073).

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 18-NOV-21 20:08:00 to 18-NOV-21 20:08:00 (EST-5)
Location: TOLLY POINT (TOL)
Magnitude: 34.00 EG
Reported by: Buoy

A squall produced an estimated wind gust to 34 knots (39 MPH) near the Tolly Point WeatherFlow sensor (XTOL).

Marine Thunderstorm Wind in CHESAPEAKE BAY N OF POOLES IS MD, ATLANTIC NORTH
From 18-NOV-21 20:11:00 to 18-NOV-21 20:15:00 (EST-5)
Location: GROVE POINT (GVP)
Magnitude: 34.00 MG
Reported by: Buoy

Wind gusts of up to 34 knots (39 MPH) were measured by the Grove Point WeatherFlow sensor (XGVP).

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 18-NOV-21 20:00:00 to 18-NOV-21 20:00:00 (EST-5)
Location: GREENBURY POINT (GBY)
Magnitude: 34.00 EG
Reported by: Buoy

A squall produced an estimated wind gust to 34 knots (39 MPH) near the Greenbury Point WeatherFlow sensor (XGBY).

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 18-NOV-21 20:00:00 to 18-NOV-21 20:06:00 (EST-5)
Location: ANNAPOLIS BUOY (44063)
Magnitude: 34.00 EG
Reported by: Buoy

A squall produced estimated wind gusts to 34 knots (39 MPH) near the Annapolis CBIBS sensor (44063).

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 18-NOV-21 20:12:00 to 18-NOV-21 20:12:00 (EST-5)
Location: HART MILLER ISLAND (HRT)
Magnitude: 34.00 EG
Reported by: Buoy

A squall produced an estimated wind gust to 34 knots (39 MPH) near the Hart Miller Island WeatherFlow sensor (XHRT).

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 18-NOV-21 20:18:00 to 18-NOV-21 20:30:00 (EST-5)
Location: GOOSES REEF BUOY (44062)
Magnitude: 34.00 EG
Reported by: Broadcast Media

A squall produced estimated wind gusts to 34 knots (39 MPH) near the Gooses Reef CBIBS sensor (44062).

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 18-NOV-21 20:27:00 to 18-NOV-21 20:27:00 (EST-5)
Location: MONROE CREEK (MON)
Magnitude: 37.00 MG
Reported by: Buoy

A wind gust of 37 knots (43 MPH) was measured by the Monroe Creek WeatherFlow sensor (XMON).

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 18-NOV-21 20:28:00 to 18-NOV-21 20:28:00 (EST-5)
Location: TOLLY POINT (TOL)
Magnitude: 34.00 EG
Reported by: Buoy

A squall produced an estimated wind gust to 34 knots (39 MPH) near the Tolly Point WeatherFlow sensor (XTOL).

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 18-NOV-21 20:48:00 to 18-NOV-21 21:30:00 (EST-5)
Location: GOOSES REEF BUOY (44062)
Magnitude: 37.00 MG
Reported by: Buoy

Wind gusts of up to 37 knots (43 MPH) were measured by the Gooses Reef CBIBS sensor (44062).

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 18-NOV-21 21:03:00 to 18-NOV-21 21:03:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 34.00 EG
Reported by: ASOS

A squall produced an estimated wind gust to 34 knots (39 MPH) near the ASOS at Ronald Reagan Washington National Airport (KDCA) adjacent to the upper tidal Potomac River.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 18-NOV-21 21:54:00 to 18-NOV-21 21:54:00 (EST-5)
Location: GOOSES REEF BUOY (44062)
Magnitude: 49.00 MG
Reported by: Buoy

A wind gust of 49 knots (56 MPH) was measured by the Gooses Reef CBIBS sensor (44062).

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 18-NOV-21 22:40:00 to 18-NOV-21 22:40:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 35.00 MG
Reported by: ASOS

A wind gust of 35 knots (40 MPH) was measured by the ASOS at Ronald Reagan Washington National Airport (KDCA) adjacent to the upper tidal Potomac River.

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 18-NOV-21 20:43:00 to 18-NOV-21 20:43:00 (EST-5)
Location: CHESAPEAKE BIOLOGICAL LABORATORY (CBIM2)
Magnitude: 38.00 MG
Reported by: Mesonet

A wind gust of 38 knots (44 MPH) was measured by a mesonet on the MD-4 Thomas Johnson Bridge (MD147).

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 18-NOV-21 18:45:00 to 18-NOV-21 18:45:00 (EST-5)
Location: LONG BRANCH ES (ARLNL)
Magnitude: 34.00 EG
Reported by: Mesonet

A squall produced an estimated wind gust to 34 knots (39 MPH) near a mesonet at Hoffman-Boston Elementary School (ARLNN) adjacent to the upper tidal Potomac River.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 18-NOV-21 18:53:00 to 18-NOV-21 19:06:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 34.00 EG
Reported by: ASOS

A squall produced estimated wind gusts to 34 knots (39 MPH) near 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 18-NOV-21 19:10:00 to 18-NOV-21 19:10:00 (EST-5)
Location: LONG BRANCH ES (ARLNL)
Magnitude: 34.00 EG
Reported by: Mesonet

A squall produced an estimated wind gust to 34 knots (39 MPH) near a mesonet at Hoffman-Boston Elementary School (ARLNN) adjacent to the upper tidal Potomac River.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 18-NOV-21 18:54:00 to 18-NOV-21 18:54:00 (EST-5)
Location: BALTIMORE KEY BRIDGE (FSKM2)
Magnitude: 34.00 EG
Reported by: Broadcast Media

A squall produced an estimated wind gust to 34 knots (39 MPH) near one of NOS sensors near the I-695 Francis Scott Key Bridge (FSNM2).

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 18-NOV-21 19:18:00 to 18-NOV-21 19:18:00 (EST-5)
Location: BALTIMORE KEY BRIDGE (FSKM2)
Magnitude: 36.00 MG
Reported by: Buoy

A wind gust of 36 knots (41 MPH) was measured by one of the NOS sensors near the I-695 Francis Scott Key Bridge (FSNM2).

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 18-NOV-21 19:18:00 to 18-NOV-21 19:30:00 (EST-5)
Location: BALTIMORE KEY BRIDGE (FSKM2)
Magnitude: 34.00 EG
Reported by: Broadcast Media

A squall produced estimated wind gusts to 34 knots (39 MPH) near one of NOS sensors near the I-695 Francis Scott Key Bridge (FSKM2).