A low pressure system moving eastward from the central United States on Thursday March 1st, intensified rapidly as it moved offshore Thursday night and early Friday, deepening to 974 mb by the evening of Friday March 2nd.
Strong winds were present in the low levels of the atmosphere due to the strengthening pressure gradient, and were able to mix down to the surface in strong wind gusts under northwest flow cold air advection.

High Wind in WASHINGTON, MARYLAND
From 02-MAR-18 12:15:00 to 02-MAR-18 19:57:00 (EST-5)
Magnitude: 53.00 EG
Reported by: ASOS

A wind gust of 61 mph was reported at the Hagerstown Regional Airport.

High Wind in EXTREME WESTERN ALLEGANY, MARYLAND
From 02-MAR-18 00:15:00 to 02-MAR-18 19:57:00 (EST-5)
Magnitude: 52.00 MG
Reported by: Mesonet

A wind gust of 60 mph as reported at Frosburg.

High Wind in CENTRAL AND EASTERN ALLEGANY, MARYLAND
From 02-MAR-18 00:15:00 to 02-MAR-18 19:57:00 (EST-5)
Magnitude: 50.00 EG
Reported by: 911 Call Center

The 911 call estimated about 55 calls related due to downed trees and power lines.

High Wind in FREDERICK, MARYLAND
From 02-MAR-18 05:12:00 to 03-MAR-18 00:41:00 (EST-5)
Magnitude: 53.00 MG
Reported by: AWOS

A wind gust of 61 mph was reported at the Frederick Municipal Airport. US 15 was closed due to downed trees near Briggs Ford Road.

High Wind in CARROLL, MARYLAND
From 02-MAR-18 02:30:00 to 03-MAR-18 00:41:00 (EST-5)
Magnitude: 50.00 EG
Reported by: 911 Call Center

There were two calls regarding trees on houses due to high wind.

High Wind in NORTHERN BALTIMORE, MARYLAND
From 02-MAR-18 06:36:00 to 03-MAR-18 00:41:00 (EST-5)
Magnitude: 50.00 EG
Reported by: 911 Call Center

Numerous trees were down due to high winds.

High Wind in SOUTHERN BALTIMORE, MARYLAND
From 02-MAR-18 06:36:00 to 03-MAR-18 00:41:00 (EST-5)
Magnitude: 50.00 EG
Reported by: 911 Call Center

Numerous trees were down due to high winds. A large tree branch fell onto a pedestrian in the 11000 block of Cedar Lane resulting in a fatality.

High Wind in NORTHWEST HARFORD, MARYLAND
From 02-MAR-18 05:36:00 to 03-MAR-18 00:41:00 (EST-5)
Magnitude: 50.00 EG
Reported by: Trained Spotter

Numerous trees were down across Harford County.

High Wind in SOUTHEAST HARFORD, MARYLAND
From 02-MAR-18 05:36:00 to 03-MAR-18 00:41:00 (EST-5)
Magnitude: 50.00 EG
Reported by: Trained Spotter

Numerous trees were down across Harford County.

High Wind in CENTRAL AND SOUTHEAST HOWARD, MARYLAND
From 02-MAR-18 05:00:00 to 03-MAR-18 00:41:00 (EST-5)
Magnitude: 50.00 EG
Reported by: 911 Call Center

Numerous trees were reported down across southeastern Howard County.

High Wind in PRINCE GEORGES, MARYLAND
From 02-MAR-18 05:36:00 to 03-MAR-18 00:41:00 (EST-5)
Magnitude: 53.00 MG
Reported by: 911 Call Center

A wind gust of 58 mph was reported in Upper Marlboro. A wind gust of 61 mph was reported at Andrews Air Force Base. Numerous trees were down across the county from high winds. The Prince Georges County 911 center reported approximately 1000 wind-related calls, mainly for trees and wires down.

High Wind in CHARLES, MARYLAND
From 02-MAR-18 08:38:00 to 03-MAR-18 00:41:00 (EST-5)
Magnitude: 52.00 MG
Reported by: 911 Call Center

A wind gust of 60 mph was reported near Tompkinsville. The Charles County 911 Center reported approximately 80 reports of downed trees or power lines.

High Wind in ANNE ARUNDEL, MARYLAND
From 02-MAR-18 12:00:00 to 03-MAR-18 00:41:00 (EST-5)
Magnitude: 56.00 MG
Reported by: 911 Call Center

A wind gust of 64 mph was reported at Annapolis (KNAK). A wind gust of 62 mph was reported at Glen Burnie, and 61 mph was reported at Baltimore-Washington International.
The Anne Arundel County 911 Center reported around 65 calls due to trees and wires down.

High Wind in ST. MARY'S, MARYLAND
From 02-MAR-18 04:12:00 to 03-MAR-18 00:41:00 (EST-5)
Magnitude: 60.00 MG
Reported by: 911 Call Center

A wind gust of 60 mph was reported near Chaptico and a wind gust of 69 mph was reported at Patuxent River. Shingles and siding was blown off of multiple homes near California, and several trees were down.
The St. Marys 911 center reported around 150 calls due to wind damage to trees, wires and shingles.

High Wind in NORTHWEST MONTGOMERY, MARYLAND
From 02-MAR-18 05:00:00 to 03-MAR-18 00:41:00 (EST-5)
Magnitude: 60.00 EG
Reported by: Trained Spotter

Numerous trees were down across Montgomery County. A large tree fell onto a house near Laytonsville, and siding was also blown off the house. A wind gust of 60 mph was reported in Clarksburg.

High Wind in NORTHWEST HOWARD, MARYLAND
From 02-MAR-18 05:00:00 to 03-MAR-18 00:41:00 (EST-5)
Magnitude: 50.00 EG
Reported by: Trained Spotter

A tree was down blocking Frederick Road between Carrs Mill Road and Morgan Station Road.

High Wind in CALVERT, MARYLAND
From 02-MAR-18 08:38:00 to 03-MAR-18 00:41:00 (EST-5)
Magnitude: 60.00 EG
Reported by: 911 Call Center

The Calvert County 911 center reported around 1000 wind-related calls, mainly for trees and wires down.

High Wind in CENTRAL AND SOUTHEAST MONTGOMERY, MARYLAND
From 02-MAR-18 05:00:00 to 03-MAR-18 00:41:00 (EST-5)
Magnitude: 60.00 EG
Reported by: Trained Spotter

Numerous trees were down across Montgomery County. A tree fell onto a house near Glenmont. A tree also fell onto a house in Gaithersburg along the 9700 block of Rutley Road. A wind gust of 64 mph was reported in Gaithersburg. A tree fell into a house causing the roof to collapse in the 16800 block of Westbourne Terrace.
A large tree was uprooted and fell onto six cars in the Bristol Square Condominium Complex off of Pooks Hill Road. A large tree was blocking several lanes of the Inner Loop of the Capital Beltway near MD-355.
A tree fell onto a car blocking Fernwood Road near Tusculum Road, resulting in an injury. A tree fell onto a care near the intersection of Beach Drive and Knowles Avenue, resulting in an injury. A tree fell onto a house near Glenmont.
The 911 Center reported approximately 500 calls of wind damage, mainly from trees and wires down blocking roads, and on cars and houses.