Significant severe thunderstorms occurred on September 28 across the region. A strong cold front moved from the Appalachian Mountains to the Mid Atlantic during the afternoon. The cold front reached to along the Chesapeake Bay around midnight. The most intense thunderstorms occurred along the Interstate 95 corridor, with one confirmed F1 tornado in Anne Arundel County, Maryland. Intense thunderstorm winds also occurred across the tidal waters of the Potomac and Chesapeake.

Thunderstorm Wind in PRINCE GEORGE'S, MARYLAND
From 28-SEP-06 17:09:00 to 28-SEP-06 17:30:00 (EST)
Location: BOWIE
Magnitude: 60 MG
Property damage: 70K
Reported by: TRAINED SPOTTER

Measured wind gust by a trained SKYWARN spotter. Significant roof damage also occurred to a home in Bowie. No injuries were reported.

Hail in PRINCE GEORGE'S, MARYLAND
From 28-SEP-06 17:09:00 to 28-SEP-06 17:09:00 (EST)
Location: BOWIE
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Penny sized hail reported near the intersection of John Hanson Highway and Maryland Route 197.

Thunderstorm Wind in HARFORD, MARYLAND
From 28-SEP-06 18:30:00 to 28-SEP-06 18:30:00 (EST)
Location: STREET
Magnitude: 50 EG
Property damage: 25K
Reported by: EMERGENCY MANAGER

Trees downed in several locations.

Thunderstorm Wind in CARROLL, MARYLAND
From 28-SEP-06 15:30:00 to 28-SEP-06 15:30:00 (EST)
Location: HAMPSTEAD
Magnitude: 50 EG
Property damage: 15K
Reported by: EMERGENCY MANAGER

Powerlines down.

Tornado in ANNE ARUNDEL, MARYLAND
From 28-SEP-06 17:34:00 to 28-SEP-06 17:44:00 (EST)
Location: SEVERNA PARK
Tornado F-scale: F1
Property damage: 6M
Reported by: NWS STORM SURVEY

The National Weather Service conducted a storm survey in Severna Park and Pasadena Maryland, rating the tornado an F1 on the Fujita scale of tornado intensity. It was determined that a the tornado touched down in the area of Severna Park about 6:34 pm, and traveled two miles before lifting in Pasadena around 6:44 pm. At its maximum the storm was 250 yards wide with winds of 90 mph. 34 homes were severely damaged by falling trees with 13 of those homes rendered uninhabitable. Initial minor damage was located near the intersection of Ritchie Highway and McKinsey Avenue. A hardware store had its sign blown down and a small tree was downed near the Severna Park Marketplace Shopping Center. A few trees were also downed immediately behind the shopping center along Leelynn Road. The tornado gathered strength as it progressed through West Ridge and towards Cattail Creek off of the Magothy River. Five large hardwood trees of one to two feet in diameter were uprooted, and several others were snapped off along Whittier Parkway. Two of the large trees had fallen through houses. These trees, as most of the trees were in the survey, were blown down nearly perpendicular to the path of the tornado (knocked down towards the west). The tornado then reached its most intense and widest extent as it passed through the community of Lower Magothy Beach. Many of these trees knocked down in this area were large two foot diameter hardwood trees that were 60 to 80 feet tall. Leaf spatter was noted on the sides of homes and vehicles. Slight siding damage was noted on one home. Many wires and telephone poles were knocked down in this area. The width of the tornado at this point was 250 yards. Damage became much more limited as the tornado continued north across Norwich Road and Inverness Road in Riverdale. By the time the storm crossed the Magothy for the final time and traveled over the community of Beachwood Park, only leaf litter and small downed branches were noted.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 28-SEP-06 15:35:00 to 28-SEP-06 15:35:00 (EST)
Location: BORING
Magnitude: 50 EG
Property damage: 22K
Reported by: EMERGENCY MANAGER

Trees and powerlines down in Northern Baltimore County.

Thunderstorm Wind in HOWARD, MARYLAND
From 28-SEP-06 16:42:00 to 28-SEP-06 16:42:00 (EST)
Location: LISBON
Magnitude: 50 EG
Property damage: 35K
Reported by: EMERGENCY MANAGER

Several trees down.