Tornado in FREDERICK, MARYLAND
From 17-SEP-04 17:10:00 to 17-SEP-04 17:17:00 (EST)
Location: BRUNSWICK
Tornado F-scale: F1
Property damage: 200K
Reported by: NWS STORM SURVEY

An F1 tornado produced structural damage to a couple of homes near Brunswick. A few buildings and out buildings were destroyed. Other structures sustained roof damage, and some trees were downed or stripped. The tornado damage continued to the north along Route 17 for approximately 3 miles before lifting at Burkittsville.

Tornado in FREDERICK, MARYLAND
From 17-SEP-04 17:54:00 to 17-SEP-04 18:05:00 (EST)
Location: ADAMSTOWN
Tornado F-scale: F1
Property damage: 50K
Reported by: NWS STORM SURVEY

An F1 tornado touched down in south central Frederick County, just east of Adamstown.  The storm traveled north and produced minor structural damage. It blew out windows, tore shingles off a couple of roofs, and caused a chimney to collapse.  The tornado also  uprooted and sheared several large softwood and hardwood trees.

Tornado in FREDERICK, MARYLAND
From 17-SEP-04 18:50:00 to 17-SEP-04 18:57:00 (EST)
Location: CATOCTIN
Tornado F-scale: F2
Property damage: 5K
Reported by: NWS STORM SURVEY

An F2 tornado touched down in far northwest Frederick County, on the northwest edge of Catoctin Mountain Park. A thickly forested stand of hardwood trees was snapped off  above the bases.

Tornado in HARFORD, MARYLAND
From 18-SEP-04 03:00:00 to 18-SEP-04 03:10:00 (EST)
Location: PYLESVILLE
Tornado F-scale: F2
Property damage: 350K
Reported by: NWS STORM SURVEY

A tornado touched down near a residence off Grier Nursery Road. The storm destroyed two mobile homes, the side of a barn was blown out, structural damage to two homes were noted, and numerous large healthy trees were twisted off near the bases.

Tornado in WASHINGTON, MARYLAND
From 17-SEP-04 17:25:00 to 17-SEP-04 17:28:00 (EST)
Location: BOONSBORO
Tornado F-scale: F0
Property damage: 120K
Reported by: NWS STORM SURVEY

A thunderstorm moved out of Frederick County into Washington County. This thunderstorm produced an F0 tornado near Boonsboro.  The storm felled trees in Boonsboro, and the trees damaged five homes.

Tornado in WASHINGTON, MARYLAND
From 17-SEP-04 19:37:00 to 17-SEP-04 19:39:00 (EST)
Location: HANCOCK
Tornado F-scale: F0
Property damage: 5K
Reported by: NWS STORM SURVEY

A weak tornado moved out of Morgan County, West Virginia. The tornado downed trees in remote areas just east of Hancock.

Tornado in MONTGOMERY, MARYLAND
From 17-SEP-04 17:35:00 to 17-SEP-04 17:39:00 (EST)
Location: POOLESVILLE
Tornado F-scale: F1
Property damage: 120K
Reported by: NWS STORM SURVEY

A thunderstorm moved north out of Loudoun County, Virginia into Montgomery County, Maryland. A tornado touched down and damaged a few structures in the Poolesville area and snapped and uprooted trees in the wooded area and farm land leading to Beallsville.

Tornado in HARFORD, MARYLAND
From 18-SEP-04 02:40:00 to 18-SEP-04 02:43:00 (EST)
Location: JOPPA
Tornado F-scale: F1
Property damage: 100K
Reported by: NWS STORM SURVEY

Trees fell on a single story house causing extensive damage to the roof. The windows were also blown out of this residence in the Greenspring Hills Subdivision. Just before the storm lifted, it peeled some siding off a few homes and blew down a few more trees.

Tornado in CHARLES, MARYLAND
From 17-SEP-04 17:42:00 to 17-SEP-04 17:47:00 (EST)
Location: MARYLAND PT
Tornado F-scale: F0
Property damage: 10K
Reported by: NWS STORM SURVEY

A weak tornado touched down in southwest Charles County Maryland near Maryland Point. The tornado downed numerous trees near the Merrick 4-H Campground. It traveled north and downed trees along Williams Farm Place and American Beauty Place. The tornado dissipated shortly after uprooting trees near the intersection of Maryland Point and Smith Point Roads.