The eastern portion of Fairfax County and the City of Falls Church are under a Flood Warning today (Tuesday) as Isaias approaches the D.C. area as a tropical storm.
The warning went into effect shortly after 7 a.m. and will last until 1 p.m. The National Weather Services says that McLean, Vienna and Falls Church can expect flooding.
More from NWS:
At 700 AM EDT, Doppler radar and automated rain gauges indicated that heavy rain was falling over the area. The heavy rain will cause flooding. Up to one inch of rain has already fallen. Additional rainfall amounts of several inches are possible, and Flash Flood Warnings could be required later today. For now, though, flooding will be relatively slow to develop…
A Flood Warning means that flooding is imminent or occurring. All interested parties should take necessary precautions immediately.
The Tysons area is also under a Flash Flood Watch until 4 p.m. and a Tropical Storm Warning.
Isaias is moving NE across NC, crossing our region through the early PM. Heavy rain will intensify with significant flood potential, especially near & east of I-95. Winds will also increase in these areas, with wind damage possible. Tornadoes also possible, mainly near the Bay. pic.twitter.com/wUyXqUxsuz
— NWS Baltimore-Washington (@NWS_BaltWash) August 4, 2020
— Fairfax Fire/Rescue (@ffxfirerescue) August 4, 2020