Reagan National sets daily rainfall record
* Flash Flood Warning extended until 12:15 a.m. *
* Storm impact coverage: PostLocal | Live chat transcript *
* Flash Flood Watch thru tonight | Share photos | Dr. Gridlock *
* Citizen observer rain totals: VA, MD | NWS Mesonet rain totals *
* Outside now? Radar, temperatures & more: Weather Wall *
Intense rainfall, with rates as high as 1-2" an hour along the I-95 corridor, is dousing much of the metro region. Storm totals are now in the 3-6" range on average in the immediate metro area, with amounts exceeding 8" from Baltimore south along the western side of the Chesapeake Bay. An additional 1-3" of rain is possible on top of what has already fallen.
Rain still extends all the way down to near the Virginia/North Carolina border and will continue streaming northward overnight. By the time the rain winds down early in the morning, totals will likely average 4-8", with double digit totals (10-12" or so) possible east of town near the Bay. All three airports, Reagan National, Dulles, and BWI, have now cruised past their respective rainfall records for the date of 2.76", 0.86", and 1.60". We'll provide the official totals tomorrow.
Flash flooding is being reported in many areas, including Sligo Creek and Rock Creek in Montgomery County. Stay off the roads if you can this evening and do not attempt to cross flooded roadways if you have to travel.
Refer to Ian's PM Update for additional information on Friday's forecast.