A cold front moved south through the region. Southerly flow ahead of the front led to an unstable air mass, which combined with steepening mid level lapse rates and increased sheer led to numerous severe thunderstorms being triggered right ahead of the front.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-JUN-15 19:26:00 to 23-JUN-15 19:26:00 (EST-5)
Location: BABAR POINT
Magnitude: 36.00 MG
Reported by: Mesonet

BAB reported gusts of 36 knots.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-JUN-15 19:35:00 to 23-JUN-15 19:35:00 (EST-5)
Location: CUCKOLD CREEK
Magnitude: 38.00 MG
Reported by: Mesonet

CCK reported gusts of 38 knots.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 23-JUN-15 19:34:00 to 23-JUN-15 20:39:00 (EST-5)
Location: RACCOON POINT
Magnitude: 42.00 MG
Reported by: Mesonet

RAC reported gusts between 31 and 42 knots.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 23-JUN-15 19:59:00 to 23-JUN-15 20:49:00 (EST-5)
Location: CRISFIELD
Magnitude: 36.00 MG
Reported by: Mesonet

CRS reported gusts between 31 and 36 knots.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 23-JUN-15 17:00:00 to 23-JUN-15 17:06:00 (EST-5)
Location: BALTIMORE CITY
Magnitude: 39.00 MG
Reported by: Mesonet

BLTM2 reported gusts between 34 and 39 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 23-JUN-15 17:20:00 to 23-JUN-15 17:20:00 (EST-5)
Location: MILLER ISLAND
Magnitude: 38.00 MG
Reported by: Mesonet

HRT reported gusts of 38 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 23-JUN-15 17:40:00 to 23-JUN-15 18:10:00 (EST-5)
Location: PATAPSCO BUOY
Magnitude: 39.00 MG
Reported by: Buoy

Patapsco Buoy 44043 reported gusts between 33 and 39 knots.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 23-JUN-15 17:54:00 to 23-JUN-15 18:34:00 (EST-5)
Location: LYLES-CROUCH ACADEMY ALEXANDRIA
Magnitude: 42.00 MG
Reported by: Mesonet

ALXNK reported gusts between 31 and 42 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 23-JUN-15 18:15:00 to 23-JUN-15 18:15:00 (EST-5)
Location: STEVENSVILLE
Magnitude: 38.00 MG
Reported by: AWOS

KW29 reported gusts of 38 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 23-JUN-15 18:30:00 to 23-JUN-15 19:20:00 (EST-5)
Location: CHESAPEAKE BEACH
Magnitude: 41.00 MG
Reported by: Mesonet

BWH reported gusts between 33 and 41 knots.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-JUN-15 19:19:00 to 23-JUN-15 19:34:00 (EST-5)
Location: POTOMAC LIGHT
Magnitude: 42.00 MG
Reported by: Mesonet

LT3 reported gusts between 35 and 42 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 23-JUN-15 17:15:00 to 23-JUN-15 17:15:00 (EST-5)
Location: MARTIN STATE AIRPORT
Magnitude: 34.00 EG
Reported by: Mesonet

GUN reported gusts between 33 and 34 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY N OF POOLES IS MD, ATLANTIC NORTH
From 23-JUN-15 16:40:00 to 23-JUN-15 16:40:00 (EST-5)
Location: SUSQUEHANNA
Magnitude: 47.00 MG
Reported by: Buoy

Susquehanna Buoy 44057 reported gusts of 47 knots.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 23-JUN-15 17:05:00 to 23-JUN-15 17:05:00 (EST-5)
Location: MARYLAND SCIENCE CENTER
Magnitude: 36.00 MG
Reported by: Mesonet

BLMRE reported gusts of 36 knots.

Marine Thunderstorm Wind in PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, ATLANTIC NORTH
From 23-JUN-15 17:18:00 to 23-JUN-15 17:48:00 (EST-5)
Location: RIVIERA BEACH
Magnitude: 47.00 MG
Reported by: Mesonet

FSKM2 reported gusts between 32 and 47 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 23-JUN-15 17:18:00 to 23-JUN-15 17:48:00 (EST-5)
Location: TOLCHESTER BEACH
Magnitude: 34.00 EG
Reported by: Mesonet

TCBM2 reported gusts between 31 and 34 knots.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 23-JUN-15 17:48:00 to 23-JUN-15 18:00:00 (EST-5)
Location: WASHINGTON NATIONALS PARK
Magnitude: 36.00 MG
Reported by: Mesonet

WASD2 reported gusts of 36 knots.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 23-JUN-15 17:49:00 to 23-JUN-15 17:59:00 (EST-5)
Location: WASHINGTON NATIONALS PARK
Magnitude: 39.00 MG
Reported by: Mesonet

WSHNP reported gusts between 37 and 39 knots.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 23-JUN-15 17:49:00 to 23-JUN-15 17:59:00 (EST-5)
Location: (DCA)REAGAN NATIONAL AIRPORT
Magnitude: 48.00 MG
Reported by: ASOS

KDCA reported gusts between 42 and 48 knots.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 23-JUN-15 17:49:00 to 23-JUN-15 17:49:00 (EST-5)
Location: WASHINGTON NATIONALS PARK
Magnitude: 35.00 MG
Reported by: Mesonet

PEPCO reported gusts of 35 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 23-JUN-15 17:50:00 to 23-JUN-15 18:10:00 (EST-5)
Location: ANNAPOLIS BUOY
Magnitude: 41.00 MG
Reported by: Buoy

Annapolis Buoy 44063 reported gusts between 31 and 41 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 23-JUN-15 17:50:00 to 23-JUN-15 17:55:00 (EST-5)
Location: ANNAPOLIS
Magnitude: 40.00 MG
Reported by: ASOS

KNAK reported gusts between 31 and 40 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY POOLES IS TO SANDY PT MD, ATLANTIC NORTH
From 23-JUN-15 17:55:00 to 23-JUN-15 18:05:00 (EST-5)
Location: SANDY POINT
Magnitude: 35.00 MG
Reported by: Mesonet

SPT reported gusts between 32 and 35 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 23-JUN-15 17:57:00 to 23-JUN-15 18:17:00 (EST-5)
Location: TOLLY POINT
Magnitude: 43.00 MG
Reported by: Mesonet

TOL reported gusts between 34 and 43 knots.

Marine Thunderstorm Wind in TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD, ATLANTIC NORTH
From 23-JUN-15 18:00:00 to 23-JUN-15 19:10:00 (EST-5)
Location: LYLES-CROUCH ACADEMY ALEXANDRIA
Magnitude: 45.00 MG
Reported by: Buoy

Upper Tidal Potomac Buoy 44061 reported gusts between 33 and 45 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 23-JUN-15 18:05:00 to 23-JUN-15 18:15:00 (EST-5)
Location: KENT ISLAND
Magnitude: 38.00 MG
Reported by: Mesonet

KNT reported gusts between 35 and 38 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 23-JUN-15 18:40:00 to 23-JUN-15 19:30:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 41.00 MG
Reported by: Buoy

Goose Reef Buoy 44062 reported gusts between 33 and 41 knots.

Marine Thunderstorm Wind in CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, ATLANTIC NORTH
From 23-JUN-15 18:42:00 to 23-JUN-15 19:06:00 (EST-5)
Location: CAMBRIDGE
Magnitude: 52.00 MG
Reported by: Mesonet

CAMM2 reported gusts between 35 and 52 knots.

Marine Thunderstorm Wind in TIDAL POTOMAC INDIAN HD TO COBB IS MD, ATLANTIC NORTH
From 23-JUN-15 18:56:00 to 23-JUN-15 20:01:00 (EST-5)
Location: QUANTICO
Magnitude: 49.00 MG
Reported by: ASOS

KNYG reported gusts between 31 and 49 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 23-JUN-15 19:00:00 to 23-JUN-15 20:00:00 (EST-5)
Location: COVE POINT
Magnitude: 43.00 MG
Reported by: Mesonet

COVM2 reported gusts between 33 and 43 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY DRUM PT TO SMITH PT VA, ATLANTIC NORTH
From 23-JUN-15 19:25:00 to 23-JUN-15 19:58:00 (EST-5)
Location: PATUXENT RIVER ASOS
Magnitude: 49.00 MG
Reported by: ASOS

KNHK reported gusts between 31 and 49 knots.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 23-JUN-15 19:55:00 to 23-JUN-15 19:55:00 (EST-5)
Location: POINT LOOKOUT
Magnitude: 34.00 MG
Reported by: Mesonet

PTL reported gusts of 34 knots.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 23-JUN-15 20:00:00 to 23-JUN-15 20:24:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 39.00 MG
Reported by: Mesonet

BISM2 reported gusts between 32 and 39 knots.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 23-JUN-15 20:04:00 to 23-JUN-15 20:14:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 42.00 MG
Reported by: Mesonet

BHD reported gusts between 32 and 42 knots.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 23-JUN-15 21:21:00 to 23-JUN-15 21:37:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 36.00 MG
Reported by: Mesonet

BHD reported gusts of 36 knots.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 23-JUN-15 21:24:00 to 23-JUN-15 21:24:00 (EST-5)
Location: BISHOPS HEAD
Magnitude: 34.00 MG
Reported by: Mesonet

BISM2 reported gusts of 34 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY N BEACH TO DRUM PT MD, ATLANTIC NORTH
From 23-JUN-15 20:40:00 to 23-JUN-15 21:00:00 (EST-5)
Location: MID BAY BUOY
Magnitude: 49.00 MG
Reported by: Buoy

Goose Reef Buoy 44062 reported gusts between 39 and 49 knots.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 23-JUN-15 21:49:00 to 23-JUN-15 21:49:00 (EST-5)
Location: RACCOON POINT
Magnitude: 34.00 EG
Reported by: Mesonet

RAC reported gusts between 31 and 34 knots.

Marine Thunderstorm Wind in TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND, ATLANTIC NORTH
From 23-JUN-15 21:44:00 to 23-JUN-15 21:59:00 (EST-5)
Location: CRISFIELD
Magnitude: 37.00 MG
Reported by: Mesonet

CRS reported gusts between 32 and 37 knots.

Marine Thunderstorm Wind in CHESAPEAKE BAY SANDY PT TO N BEACH MD, ATLANTIC NORTH
From 23-JUN-15 17:52:00 to 23-JUN-15 18:11:00 (EST-5)
Location: GREENBERRY POINT
Magnitude: 47.00 MG
Reported by: Mesonet

GBY reported gusts between 34 and 47 knots.

Marine Thunderstorm Wind in TIDAL POTOMAC COBB IS MD TO SMITH PT VA, ATLANTIC NORTH
From 23-JUN-15 19:34:00 to 23-JUN-15 19:49:00 (EST-5)
Location: PINEY POINT
Magnitude: 42.00 MG
Reported by: Mesonet

COB reported gusts between 31 and 42 knots.