Thunderstorms which contained winds in excess of 55 MPH, heavy rainfall, and large hail developed ahead of a cold front during the evening of the 21st.  The line of storms that moved across Montgomery and Prince George's Counties produced two tornadoes.  The first tornado touched down in the Aspen Hill area of Montgomery County along Colesville Manor Drive.  It move east across Northwest Branch Park and onto Scott Drive, Mills Avenue, Notley Street, and Paula Lynn Drive, then dissipated 1 mile north of Colesville. The F1 tornado was on the ground for 1 mile and was 30 yards wide .  It downed numerous trees, including one which fell onto a house and another onto a shed.  The second tornado, nearly 150 yards wide, touched down just east of Laurel near Route 197 and the Patuxent Greens Country Club.  It damaged a garage door, tore an awning, and lifted shingles on golf course property, in addition to knocking down over 80 large trees.  The F1 tornado continued east for one mile downing several other trees before dissipating near the Patuxent River.  In addition to the tornado damage, straight line winds in excess of 55 MPH also damaged trees, power lines, and structures in Montgomery and Prince George's Counties.  An apartment complex in Silver Spring suffered roof damage, shattered windows, ripped gutters, and damaged cinder block walls.  Downed fences and several cars damaged by fallen trees were found nearby.  Tree damage was also reported in Gaithersburg, the Rock Creek Valley neighborhood, Wheaton, and Laurel.  In Howard County, high winds blew in a window and snapped trees south of Columbia.  Winds estimated between 60 and 75 MPH downed numerous trees and power lines across northern Anne Arundel County, including the communities of Odenton, Glen Burnie, Crownsville, and Pasadena.  In Frederick County, 1.75 inches of rain fell in Wolfsville and 1.57 inches was recorded in Frederick.

Tornado in MONTGOMERY, MARYLAND
From 21-JUN-00 21:10:00 to 21-JUN-00 21:10:00 (EST)
Location: GLENMONT
Tornado F-scale: F1
Property damage: 250K
Reported by: NWS STORM SURVEY

Numerous trees were downed or snapped, several cars were damaged by trees and debris. Several apartment roofs, a wall, and a fence were damaged.  Trim and siding on homes were also damaged.

Tornado in PRINCE GEORGE'S, MARYLAND
From 21-JUN-00 21:28:00 to 21-JUN-00 21:32:00 (EST)
Location: LAUREL
Tornado F-scale: F1
Property damage: 150K
Reported by: NWS STORM SURVEY

Numerous trees were downed and some exterior damaged was reported on buildings.  The tornado cut a path through the Patuxent Greens Golf Course and damaged the clubhouse and maintenance buildings.  About 80 large trees were lost on the property.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 21-JUN-00 21:00:00 to 21-JUN-00 21:00:00 (EST)
Location: GAITHERSBURG
Property damage: 1K
Reported by: TRAINED SPOTTER

Trees were downed.

Thunderstorm Wind in PRINCE GEORGE'S, MARYLAND
From 21-JUN-00 21:25:00 to 21-JUN-00 21:25:00 (EST)
Location: LAUREL
Property damage: 10K
Reported by: NWS STORM SURVEY

Wind gusts between 60 and 75 MPH downed trees just south of the tornado's path.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 21-JUN-00 21:10:00 to 21-JUN-00 21:10:00 (EST)
Location: WHEATON
Property damage: 5K
Reported by: NWS STORM SURVEY

Trees were downed south of the tornado's path.

Thunderstorm Wind in ANNE ARUNDEL, MARYLAND
From 21-JUN-00 21:25:00 to 21-JUN-00 21:50:00 (EST)
Location: NORTH PORTION
Property damage: 25K
Reported by: NWS STORM SURVEY

Wind gusts between 60 and 75 MPH downed several trees and power lines.

Heavy Rain in FREDERICK, MARYLAND
From 21-JUN-00 20:00:00 to 21-JUN-00 22:00:00 (EST)
Location: COUNTYWIDE
Reported by: TRAINED SPOTTER

Thunderstorm Wind in HOWARD, MARYLAND
From 21-JUN-00 21:20:00 to 21-JUN-00 21:20:00 (EST)
Location: COLUMBIA
Property damage: 5K
Reported by: TRAINED SPOTTER

High winds blew in a window and snapped trees.

Hail in MONTGOMERY, MARYLAND
From 21-JUN-00 21:20:00 to 21-JUN-00 21:20:00 (EST)
Location: COLESVILLE
Magnitude: 2.00 
Reported by: NWS STORM SURVEY

Golfball to lemon sized hail fell just prior to the tornado.