Update, 3:04 p.m.: A Flash Flood Warning has also been issued for northeastern Montgomery County.
At 3:03 p.m., NWS radar picked up thunderstorms producing heavy rain across the warned areas and between 1 and 2 inches of rain has already fallen, according to the MoCo Information App.
Flash flooding is ongoing and expected to begin shortly, said the report. The Flashing Flood Warning is expected to run through 6 p.m…