A cold front combined with plenty of instability to trigger showers and thunderstorms across the Tidal Potomac and Chesapeake Bay. Some thunderstorms produced gusty winds.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 21-APR-09 17:32:00 to 21-APR-09 17:32:00 (EST-5)
Location: ROUTE 301 BRIDGE
Magnitude: 50.00 EG
Reported by: Fire Department/Rescue

A wind gust was estimated between 40 and 50 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 21-APR-09 18:15:00 to 21-APR-09 18:20:00 (EST-5)
Location: SANDY POINT
Magnitude: 34.00 EG
Reported by: Mesonet

A wind gust in excess of 30 knots was measured at Sandy Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 21-APR-09 18:12:00 to 21-APR-09 18:12:00 (EST-5)
Location: CHESAPEAKE BIOLOGICAL LABORATORY
Magnitude: 38.00 MG
Reported by: Buoy

A wind gust of 38 knots was measured at Solomons Island.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 21-APR-09 18:12:00 to 21-APR-09 18:16:00 (EST-5)
Location: PATUXENT RIVER NAS
Magnitude: 41.00 MG
Reported by: ASOS

A wind gust of 41 knots was measured at Patuxent River.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 21-APR-09 16:56:00 to 21-APR-09 16:56:00 (EST-5)
Location: QUANTICO
Magnitude: 44.00 MG
Reported by: ASOS

A wind gust of 44 knots was measured at Quantico.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 21-APR-09 17:49:00 to 21-APR-09 17:49:00 (EST-5)
Location: PINEY POINT
Magnitude: 40.00 EG
Reported by: Emergency Manager

A wind gust was estimated around 40 knots one mile southwest of Maddox.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 21-APR-09 17:54:00 to 21-APR-09 17:54:00 (EST-5)
Location: PINEY POINT
Magnitude: 35.00 MG
Reported by: Buoy

A wind gust of 35 knots was measured at Piney Point.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 21-APR-09 18:18:00 to 21-APR-09 18:18:00 (EST-5)
Location: ST INIGOES
Magnitude: 37.00 MG
Reported by: Mesonet

A wind gust of 37 knots was measured at Piney Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 21-APR-09 18:31:00 to 21-APR-09 18:37:00 (EST-5)
Location: LOWER HOOPERS ISLAND
Magnitude: 37.00 MG
Reported by: Mesonet

A wind gust of 37 knots was measured at Lower Hooper Island.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 21-APR-09 18:40:00 to 21-APR-09 18:55:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 51.00 MG
Reported by: Mesonet

Wind gusts between 34 and 51 knots were measured at Bishops Head.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 21-APR-09 17:32:00 to 21-APR-09 17:32:00 (EST-5)
Location: POTOMAC LIGHT
Magnitude: 42.00 MG
Reported by: Mesonet

Wind gusts between 34 and 42 knots were measured at Potomac Lighthouse.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 21-APR-09 18:24:00 to 21-APR-09 18:40:00 (EST-5)
Location: TOLCHESTER BEACH
Magnitude: 35.00 MG
Reported by: Buoy

Wind gusts up to 35 knots were measured at Tolchester Beach.