Arlington County and the D.C. region will be under a freeze watch from Friday evening until Saturday morning as cold temperatures descend on the area.
An Arctic blast of cold air arriving tonight (Thursday) will bring temperatures in the 20s on Friday night and Saturday morning.
The National Weather Service said sensitive plants may be damaged or killed, and NWS recommends protecting from the cold.
From the National Weather Service:
FREEZE WATCH REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY MORNING… * TEMPERATURES… LOWS AROUND 20 INLAND AREAS, MID 20S FOR THE URBAN CENTERS AND ALONG THE WESTERN SHORE OF THE CHESAPEAKE BAY AND TIDAL POTOMAC RIVER * IMPACTS… FROST AND FREEZE CONDITIONS WILL DAMAGE OR KILL SENSITIVE VEGETATION ON FRIDAY NIGHT. TAKE STEPS NOW TO PROTECT TENDER PLANTS FROM THE COLD. PRECAUTIONARY/PREPAREDNESS ACTIONS… A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION.
Much colder weather is on the way as a strong cold front moves across the region late tonight and early Friday.The coldest night will be Friday night when temperatures bottom out in the upper teens to 20s. pic.twitter.com/BLtg07bLsj
— NWS DC/Baltimore (@NWS_BaltWash) November 9, 2017
Freeze Watches are in effect for those portions of our region which are still considered to have an active growing season. Northern Maryland may see a freeze tonight, while they and the rest of the region will definitely see a freeze Friday night! pic.twitter.com/vGQXkRAu2W
— NWS DC/Baltimore (@NWS_BaltWash) November 9, 2017