The following events were reported: Flash Flood, Flood. These occurred near station USW00093721, approximately 17.8869 km away, between 2011-07-07 17:20:00 and 2011-07-08 18:00:00. The flood was caused by Heavy Rain. Thankfully, no injuries or fatalities were reported. No significant property or crop damage was reported. Episode Narrative: A nearly stationary low pressure trough existing in a moist and unstable atmosphere aided in the development of showers and thunderstorms across northern Maryland. Slow storm movement caused flash flooding across the Baltimore metropolitan area as rainfall rates of over 1 inch per hour occurred. Rainfall totals reached as high as 3.10 in Montgomery County. A nearly stationary low pressure trough existing in a moist and unstable atmosphere aided in the development of showers and thunderstorms across northern Maryland. Event Narrative: A swift water rescue was performed at the intersection of York Road and Beaver Run Lane. Multiple roadways were reported closed due to flash flooding in and around Cockeysville. Northbound Route 1 was closed between North 2nd Street and Davis due to flash flooding. Water was about 3 feet deep. Rainfall totals near the event measured 2.93 inches. A vehicle was stranded in floodwaters at the intersection of Routes 24 and 40. A nearby rain gage measured 2.20 inches. Mountain Road was closed due to flash flooding at intersection with Tick Neck Road. A nearby rain gage measured 2.80 inches. Up to 6 inches of water was flooding across Eastern Avenue between Wiltshire and Mace Avenues. Rainfall Rates of up to one inch per hour were measured near this location. Route 40 was closed near Stevens Road. Portions of Quarantine Road were flooded. The intersection of North Point Blvd. and Norris Lane was closed due to overflowing creek. A nearby spotter measured 1.72 inches of rain. Intersection of St. Stephens Road and Route 450 were closed due to flash flooding. Mountain Road at Catherine Avenue was flooded by about one foot of standing water. North Point Road was flooded between Kane Street and Quad Avenue. A swift water rescue was performed at the intersection of North Avondale Road and Sellers Point Road. A swift water rescue was performed on Dundalk Avenue. A swift water rescue was performed at the intersection of North Point Road and German Hill Road. The intersection of Fort Smallwood Road and Hawkins Point Road was closed due to flash flooding. A swift water rescue was performed at the intersection of Myrtle and Tulip Avenues. A swift water rescue was performed on Halthorpe Avenue. Intersection of West Patapsco Avenue and Marmenco Court was closed due to flash flooding. Portion of South Hanover Street was closed due to flooding. Waterview Avenue was closed due to flash flooding at its intersection with Interstate 95. Intersection of Aliceanna and Caroline Streets closed due to flash flooding. Washington Blvd. was closed at Interstate 95 due to flash flooding. Intersection of Fleet and South Caroline Streets were closed due to flash flooding. Flooding on Haines Street. Intersection of Washington Blvd and Monroe Street was closed due to flash flooding. Benson Avenue was closed at South Grantley Street due to flash flooding. Flash flooding forced closure of Ashland and York Roads intersection. Several inches of water were covering various sections of Mountain Road. A nearby rain gage measured 0.81 inches.