5:30 Update: Totals through 5:00: National 3.38", Dulles 2.23", BWI 2.03". The amount at National is more than the average total for the entire month of October.
Rain, moderate to heavy at times. The flood watch for West Virginia and western portions of Virginia was cancelled at mid afternoon, but the watch remains in effect for DC and adjacent Maryland and Virginia through Saturday morning. Additional rainfall of 1-3" is possible with some urban flooding or flash flooding from thunderstorms.
Although not as heavy as Wednesday evening, the rainfall rate has picked up today following the drizzle and light rain on Thursday. Storm totals through early this afternoon included: National 2.61", Dulles 2.1", and BWI 1.75". Radar shows a steady stream of showers extending as far back as the Carolinas. This is all moving generally northward, although the heaviest showers were concentrated east of I-95, headed toward the eastern areas of Virginia and Maryland which received lighter amounts through yesterday. The whole area of rain will be shifting very gradually eastward, and precipitation should be tapering off in the immediate metro area by about 8am Saturday.
Temperatures tonight should remain near steady, around 60° to the lower 60s.
CapitalWeather.com chart from NWS data, photo © Kevin Ambrose