A subtle remnant disturbance from prior day's convection over the Midwest amplified a pre-existing lee pressure trough, igniting numerous thunderstorms. Given the excessive hot, humid, and unstable environment, these thunderstorms were able to organize into clusters and lines despite a lack of stronger wind shear.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 28-JUL-23 18:57:00 to 28-JUL-23 19:12:00 (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 WeatherFlow sensor (XHRT).

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 28-JUL-23 18:59:00 to 28-JUL-23 18:59:00 (EST-5)
Location: (KMTN)MARTIN STATE AIRPORT
Magnitude: 39.00 MG
Reported by: Mesonet

A wind gust of 39 knots (45 MPH) was measured by a mesonet at the intersection of MD-43 White Marsh Boulevard and MD-150 Eastern Boulevard (MD063) adjacent to the Chesapeake Bay.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 28-JUL-23 19:00:00 to 28-JUL-23 19:00:00 (EST-5)
Location: BALTIMORE KEY BRIDGE (FSKM2)
Magnitude: 40.00 MG
Reported by: Mesonet

A wind gust of 40 knots (46 MPH) was measured by a mesonet at Baltimore Tower (MSI05) adjacent to the tidal Patapsco River.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 28-JUL-23 19:00:00 to 28-JUL-23 19:00:00 (EST-5)
Location: HAMPSTEAD HILL ACADEMY (BLMHH)
Magnitude: 34.00 EG
Reported by: Mesonet

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a mesonet at Hampstead Hill Academy (BLMHH) adjacent to the tidal Patapsco River.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 28-JUL-23 19:00:00 to 28-JUL-23 19:00:00 (EST-5)
Location: MARYLAND SCIENCE CENTER (BLMRE)
Magnitude: 35.00 MG
Reported by: Mesonet

A wind gust of 35 knots (40 MPH) was measured by a mesonet at the Maryland Science Center (BLMRE) adjacent to the tidal Patapsco River.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 28-JUL-23 19:02:00 to 28-JUL-23 19:33:00 (EST-5)
Location: SANDY POINT (SPT)
Magnitude: 48.00 MG
Reported by: Mesonet

Wind gusts of up to 48 knots (55 MPH) were measured by a personal weather station at Persimmon Point (KMDANNAP2658) adjacent to the Chesapeake Bay.

Marine Thunderstorm Wind in CHESAPEAKE BAY N OF POOLES IS MD, ATLANTIC NORTH
From 28-JUL-23 19:09:00 to 28-JUL-23 19:24:00 (EST-5)
Location: GROVE POINT (GVP)
Magnitude: 38.00 MG
Reported by: Buoy

Wind gusts of up to 38 knots (44 MPH) were measured by the Grove Point WeatherFlow sensor (XGVP).

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 28-JUL-23 19:12:00 to 28-JUL-23 19:24:00 (EST-5)
Location: TOLCHESTER MD (TCBM2)
Magnitude: 43.00 MG
Reported by: Buoy

Wind gusts of up to 43 knots (49 MPH) were measured by the Tolchester Beach NOS sensor (TCBM2).

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 28-JUL-23 19:15:00 to 28-JUL-23 19:15:00 (EST-5)
Location: TOLCHESTER MD (TCBM2)
Magnitude: 34.00 EG
Reported by: Mesonet

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a Tempest station on North Bayview Avenue adjacent to the Chesapeake Bay.

Marine Thunderstorm Wind in CHESTER RIVER TO QUEENSTOWN MD, ATLANTIC NORTH
From 28-JUL-23 19:20:00 to 28-JUL-23 19:25:00 (EST-5)
Location: ROCK HALL ES (RKHAL)
Magnitude: 49.00 MG
Reported by: Mesonet

Wind gusts of up to 49 knots (56 MPH) were measured by a Tempest station at Huntingfield Point adjacent to the tidal Chester River.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 28-JUL-23 20:00:00 to 28-JUL-23 20:20:00 (EST-5)
Location: OCCOQUAN RIVER (OCC)
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

Wind gusts of up to 54 knots (62 MPH) were measured by the Occoquan River WeatherFlow sensor (XOCC).

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 28-JUL-23 20:18:00 to 28-JUL-23 20:18:00 (EST-5)
Location: THOMAS POINT (TPLM2)
Magnitude: 34.00 EG
Reported by: Buoy

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near the Thomas Point NOS sensor (TPLM2).

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 28-JUL-23 20:24:00 to 28-JUL-23 20:24:00 (EST-5)
Location: GREENBURY POINT (GBY)
Magnitude: 34.00 EG
Reported by: Mesonet

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a personal weather station at Annapolis Sailing School (KMDANNAP2625) adjacent to the Chesapeake Bay.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 28-JUL-23 20:24:00 to 28-JUL-23 20:34:00 (EST-5)
Location: TOLLY POINT (TOL)
Magnitude: 43.00 MG
Reported by: Buoy

Wind gusts of up to 43 knots (49 MPH) were measured by the Tolly Point WeatherFlow sensor (XTOL).

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 28-JUL-23 20:26:00 to 28-JUL-23 20:26:00 (EST-5)
Location: GREENBURY POINT (GBY)
Magnitude: 34.00 EG
Reported by: Buoy

A thunderstorm 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 28-JUL-23 20:30:00 to 28-JUL-23 20:35:00 (EST-5)
Location: THOMAS POINT (TPLM2)
Magnitude: 34.00 EG
Reported by: Mesonet

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a Tempest station on Thomas Point Road adjacent to the Chesapeake Bay.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 28-JUL-23 18:36:00 to 28-JUL-23 19:00:00 (EST-5)
Location: BALTIMORE KEY BRIDGE (FSKM2)
Magnitude: 46.00 MG
Reported by: Buoy

Wind gusts of up to 46 knots (53 MPH) were measured by the I-695 Francis Scott Key Bridge Northeast Tower NOS sensor (FSNM2).

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 28-JUL-23 18:39:00 to 28-JUL-23 18:49:00 (EST-5)
Location: BALTIMORE (BLTM2)
Magnitude: 38.00 MG
Reported by: Mesonet

Wind gusts of up to 38 knots (44 MPH) were measured by a personal weather station at Canton - Baltimore Water Taxi (KMDBALTI181).

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 28-JUL-23 18:48:00 to 28-JUL-23 19:18:00 (EST-5)
Location: SENECA CREEK
Magnitude: 39.00 MG
Reported by: Buoy

Wind gusts of up to 39 knots (45 MPH) were measured by the Seneca Creek WeatherFlow sensor (XSNC).

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 28-JUL-23 18:48:00 to 28-JUL-23 18:54:00 (EST-5)
Location: BALTIMORE KEY BRIDGE (FSKM2)
Magnitude: 42.00 MG
Reported by: Buoy

Wind gusts of up to 42 knots (48 MPH) were measured by the I-695 Francis Scott Key Bridge NOS sensor (FSKM2).

Marine Thunderstorm Wind in CHESAPEAKE BAY N OF POOLES IS MD, ATLANTIC NORTH
From 28-JUL-23 18:55:00 to 28-JUL-23 19:15:00 (EST-5)
Location: HAVRE DE GRACE (HAVDG)
Magnitude: 39.00 MG
Reported by: Mesonet

Wind gusts of up to 39 knots (45 MPH) were measured by a mesonet on the eastbound span of the US-40 Hatem Bridge (MD072).

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 28-JUL-23 20:19:00 to 28-JUL-23 20:24:00 (EST-5)
Location: SANDY POINT (SPT)
Magnitude: 34.00 EG
Reported by: Mesonet

A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a personal weather station at Persimmon Point (KMDANNAP2658) adjacent to the Chesapeake Bay.