Fairfax County, including Reston, is under a Severe Thunderstorm Watch until 10 p.m. tonight. From the National Weather Service:
ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON ANDÂ EVENING. LOCALLYÂ DAMAGING WIND GUSTS ARE THE PRIMARY THREAT.
LOCALLY HEAVY RAIN IS POSSIBLE WITH THE THUNDERSTORMS LATE THISÂ AFTERNOON AND EVENING. IF REPETITIVE OR PERSISTENT THUNDERSTORMSÂ OCCUR…ISOLATED FLASH FLOODING COULD OCCUR…PARTICULARLY INÂ URBAN AREAS.