On the morning of May 30th a surface front was positioned across Pennsylvania, with a surface low positioned west of Chicago, Illinois. Through the day the surface
low moved eastward along the frontal boundary, reaching western Pennsylvania by late in the afternoon. The low then quickly pushed eastward off the NJ coastline by late in the evening, with a cold front crossing the region. In addition, two disturbances aloft moved across the area, one during the mid to late afternoon hours, and another
in the evening. Out ahead of the front, warmth and humidity allowed for the development of moderate instability and that coupled with moderate wind shear aloft set the stage for two rounds of scattered showers and thunderstorms, some of which produced gusty winds over the waters.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 30-MAY-19 14:39:00 to 30-MAY-19 14:44:00 (EST-5)
Location: NATIONALS PARK (WSHNP)
Magnitude: 36.00 MG
Reported by: Mesonet

Wind gusts of up to 36 knots were observed at Washington Nationals Park.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 30-MAY-19 14:40:00 to 30-MAY-19 14:40:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 45.00 MG
Reported by: ASOS

Wind gusts of up to 45 knots were observed at Washington National Airport.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 30-MAY-19 14:56:00 to 30-MAY-19 14:56:00 (EST-5)
Location: LEESYLVANIA STATE PARK (LSLVN)
Magnitude: 55.00 MG
Reported by: Mesonet

Wind gusts of up to 55 knots were observed near Occoquan.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 30-MAY-19 15:00:00 to 30-MAY-19 15:00:00 (EST-5)
Location: BALTIMORE KEY BRIDGE (FSKM2)
Magnitude: 35.00 MG
Reported by: Mesonet

Wind gusts of up to 35 knots were observed at the Baltimore Key Bridge.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 30-MAY-19 15:26:00 to 30-MAY-19 15:31:00 (EST-5)
Location: HERRING BAY (HRB)
Magnitude: 42.00 MG
Reported by: Mesonet

Wind gusts of up to 42 knots were observed at Herring Bay.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 30-MAY-19 15:26:00 to 30-MAY-19 15:26:00 (EST-5)
Location: KENT ISLAND (KNT)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Kent Island.

Marine Thunderstorm Wind in CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 30-MAY-19 15:40:00 to 30-MAY-19 15:45:00 (EST-5)
Location: BLACKWALNUT HARBOR (BWH)
Magnitude: 42.00 MG
Reported by: Mesonet

Wind gusts of up to 42 knots were observed at Blackwalnut Harbor.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 30-MAY-19 15:54:00 to 30-MAY-19 16:06:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 50.00 MG
Reported by: Mesonet

Wind gusts of up to 50 knots were observed at Cove Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 30-MAY-19 16:00:00 to 30-MAY-19 16:00:00 (EST-5)
Location: THOMAS POINT (TPLM2)
Magnitude: 48.00 MG
Reported by: Mesonet

Wind gusts of up to 48 knots were observed at Thomas Point.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 30-MAY-19 16:25:00 to 30-MAY-19 16:25:00 (EST-5)
Location: BAYSIDE ES (STVVL)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed near Stevensville.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 30-MAY-19 15:17:00 to 30-MAY-19 15:17:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Tower 70.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 30-MAY-19 15:21:00 to 30-MAY-19 15:26:00 (EST-5)
Location: BABAR POINT (BAB)
Magnitude: 35.00 MG
Reported by: Mesonet

Wind gusts of up to 35 knots were observed at Babar Point.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 30-MAY-19 15:22:00 to 30-MAY-19 15:27:00 (EST-5)
Location: BABAR POINT (BAB)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Pylons.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 30-MAY-19 15:24:00 to 30-MAY-19 15:29:00 (EST-5)
Location: POTOMAC LIGHT 33 (LT3)
Magnitude: 38.00 MG
Reported by: Mesonet

Wind gusts of up to 38 knots were observed at Potomac Light 33.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 30-MAY-19 15:32:00 to 30-MAY-19 15:37:00 (EST-5)
Location: CUCKOLD CREEK (CCK)
Magnitude: 34.00 MG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Cuckold Creek.

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 30-MAY-19 15:54:00 to 30-MAY-19 15:54:00 (EST-5)
Location: SOLOMONS ISLAND (SLIM2)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Solomons Island.

Marine Thunderstorm Wind in PATUXENT RIVER TO BROOMES ISLAND MD, ATLANTIC NORTH
From 30-MAY-19 16:00:00 to 30-MAY-19 16:00:00 (EST-5)
Location: SOLOMONS ISLAND (SLIM2)
Magnitude: 34.00 EG
Reported by: Mesonet

Wind gusts of up to 34 knots were observed at Patuxent River.