The National Weather Service has issued a Tornado Warning for Rockville, Montgomery Village, Potomac, and Southern-most area of Germantown until 3:15 pm
TAKE COVER NOW
At 239 PM EDT, a severe thunderstorm capable of producing a tornado was located over Great Falls, or over Lowes Island, moving northeast at 40 mph. Radar indicated rotation.
Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows. If you are outdoors, in a mobile home, or in a vehicle move to the closest substantial shelter and protect yourself from flying debris.
Motorists should not take shelter under highway overpasses. If you cannot safely drive away from the tornado, as a last resort either park your vehicle and stay put or abandon your vehicle and lie down in a low lying area and protect yourself from flying debris.