The following events were reported: Flood. These occurred near station USW00093738, approximately 23.2298 km away, between 2018-12-15 10:30:00 and 2018-12-16 19:30:00. 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 potent upper-level low and associated area of surface low pressure approached the region from southwest on the 15th. Strong forcing for ascent and ample moisture transport in advance of the upper level low led to a prolonged period of rain across the region. Eventually low pressure transferred to the coast before precipitation wound down on the 16th. Widespread rainfall totals of 2-4 inches were observed across the area. A potent upper-level low and associated area of surface low pressure approached the region from southwest on the 15th. Event Narrative: Old Courthouse Road closed near intersection with Besley Road due to flooding. Edwards Ferry Road NE closed between Battlefield Parkway and Red Rock Way. Burke Lake Road closed near intersection with Kilkenny Lane due to flooding. Fleetwood Drive near Sowego Road impassable due to flooding. The stream gage on the South Fork of the Catoctin Creek near Waterford exceeded the 8 foot flood stage during the indicated period. Lowland fields near the creek were flooded. The peak level of 8.45 feet occurred at 1:00 AM on the 16th. The stream gage on Cedar Run at Catlett exceeded the 12 foot flood stage during the indicated period. Water overflowed the banks into the lowlands. The peak level of 12.02 feet occurred at 4:30 AM on the 16th. The stream gage on Goose Creek at Leesburg exceeded the 12 foot flood stage during the indicated period. Water approached low spots along State Route 733 (Lime Kiln Road). Water was in the backyards of homes near Highway 15 and reached the underside of two low bridges over the creek at Crooked Bridge Lane. The peak level of 14.75 feet occurred at 08:15 AM on the 16th. Aden Road at Parkgate Drive closed as a result of flooding. New Guinea Road (10000 block) closed due to flooding. Lime Kiln Road (38000 block) closed due to flooding/vehicle in the water. Lake Drive closed from Dead End to Pine Street due to flooding. Snickersville Turnpike at Hibbs Bridge Road closed due to flooding. The stream gage on Bull Run at Manassas Park exceeded the 12 foot flood stage during the indicated period. Backyards were flooded along Lake Drive in Manassas, along with much of the Bull Run trail system. The peak level of 15.63 feet occurred at 7:38 AM on the 16th. The stream gage on the Broad Run at Bristow exceeded the 9.5 foot flood stage during the indicated period. Piper Lane flooded near Manassas Airport and trails along the stream were also flooded. The peak level of 13.35 feet occurred at 11:07 PM on the 15th. The stream gage on Cedar Run at Aden exceeded the 10 foot flood stage during the indicated period, flooding Fleetwood Drive near Cedar Run. The peak level of 11.80 feet occurred at 7:06 AM on the 16th. Valley View Drive at Bristow Road closed due to flooding. Old Church Road at Oxfordshire Drive closed due to flooding. Water rescue on Little River Road near the Prince William/Loudoun County line. Submerged vehicle with four occupants, self rescued. Artemus Road at Pageland Lane is closed due to flooding. Piper Lane closed as a result of flooding. Joplin Road from Bristow Road to Liming Lane closed due to flooding. Shreve Mill Road closed west of Sycolin Road due to flooding. Reid Lane closed from Fauqier Drive to Vint Hill Road due to flooding. Featherbed Lane closed at Sudley Road as a result of flooding. Hunter Mill Road closed near intersection with Lawyers Road due to flooding. Water rescue on Chapel Road near Cold Point Road. Car stranded in high water.