A cold front passed through the area. Warm and humid conditions led to an unstable atmosphere ahead of the boundary, and that caused a few storms to become severe.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 15-MAY-18 20:35:00 to 15-MAY-18 20:35:00 (EST-5)
Location: ROD N REEL CHESAPEAKE BEACH (CHSRL)
Magnitude: 36.00 MG
Reported by: Mesonet

A wind gust of 36 knots was reported at the Crisfield Fire Department.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 15-MAY-18 20:10:00 to 15-MAY-18 20:10:00 (EST-5)
Location: ANNAPOLIS BUOY (44063)
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in CHESAPEAKE BAY N OF POOLES IS MD, ATLANTIC NORTH
From 15-MAY-18 18:21:00 to 15-MAY-18 18:46:00 (EST-5)
Location: GROVE POINT (GVP)
Magnitude: 34.00 EG
Reported by: Buoy

A wind gust in excess of 30 knots was reported at Grove Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 15-MAY-18 18:42:00 to 15-MAY-18 19:32:00 (EST-5)
Location: HART MILLER ISLAND (HRT)
Magnitude: 39.00 MG
Reported by: Buoy

Wind gusts up to 39 knots were reported at Hart Miller Island.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 15-MAY-18 19:41:00 to 15-MAY-18 20:01:00 (EST-5)
Location: TOLLY POINT (TOL)
Magnitude: 34.00 EG
Reported by: Buoy

A wind gust in excess of 30 knots was reported at Tolly Point.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 15-MAY-18 19:50:00 to 15-MAY-18 19:53:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 36.00 MG
Reported by: ASOS

Wind gusts up to 36 knots were reported at Reagan National.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 15-MAY-18 19:55:00 to 15-MAY-18 19:55:00 (EST-5)
Location: LONG BRANCH ES (ARLNL)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts in excess of 30 knots were reported at Hoffman-Boston Elementary School.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 15-MAY-18 19:55:00 to 15-MAY-18 20:09:00 (EST-5)
Location: ALEXANDRIA COUNTRY DAY (ALXNC)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts in excess of 30 knots were reported at Alexandria Country Day.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 15-MAY-18 19:59:00 to 15-MAY-18 19:59:00 (EST-5)
Location: NATIONALS PARK (WSHNP)
Magnitude: 34.00 MG
Reported by: Mesonet

A wind gust of 34 knots was reported at Nationals Park.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 15-MAY-18 20:00:00 to 15-MAY-18 21:00:00 (EST-5)
Location: THOMAS POINT (TPLM2)
Magnitude: 43.00 MG
Reported by: Buoy

Wind gusts of 35 to 43 knots were reported at Thomas Point Lighthouse.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 15-MAY-18 20:09:00 to 15-MAY-18 20:09:00 (EST-5)
Location: GREENBERRY POINT (GBY)
Magnitude: 34.00 EG
Reported by: Buoy

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

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 15-MAY-18 20:17:00 to 15-MAY-18 20:17:00 (EST-5)
Location: KENT ISLAND (KNT)
Magnitude: 34.00 EG
Reported by: AWOS

Wind gusts in excess of 30 knots were reported at the Kent Island.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 15-MAY-18 21:18:00 to 15-MAY-18 21:36:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 44.00 MG
Reported by: Buoy

Wind gusts up to 44 knots were reported at Cove Point.

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 15-MAY-18 21:30:00 to 15-MAY-18 21:42:00 (EST-5)
Location: SOLOMONS ISLAND (SLIM2)
Magnitude: 35.00 MG
Reported by: Buoy

Wind gusts up to 35 knots were reported at Solomons Island.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 15-MAY-18 21:46:00 to 15-MAY-18 21:53:00 (EST-5)
Location: PATUXENT RIVER ASOS (KNAK)
Magnitude: 34.00 MG
Reported by: AWOS

Wind gusts up to 34 knots were reported at Patuxent River (KNHK).