A snowy system moving across the Southeast could bring some flurries to the Baltimore region Thursday afternoon, and then cold air is forecast to move in overnight, triggering a “Code Blue” declaration in the city.
Snow is possible in the late afternoon or early evening, but no accumulation is expected, except for maybe a dusting in southernmost portions of Maryland.
Then, temperatures are forecast to drop close to 20 degrees overnight, with a 10 mph breeze from the north making it feel as cold as the lower teens.
Baltimore Health Commissioner Letitia Dzirasa issued a Code Blue Extreme Cold declaration from Thursday evening through Friday morning. The declaration urges residents to seek shelter from the cold and to check on vulnerable or elderly neighbors or relatives.
Though it has been largely mild this season, cold temperature has been a factor in six deaths in the city and more than two dozen others across the state so far this winter.
The average temperature at Baltimore-Washington International Thurgood Marshall Airport was more than 3 degrees above normal in December, more than 7 degrees above normal in January, and is so far 8.5 degrees above normal in February. The coldest readings this season at BWI have been 19 degrees on a handful of occasions. Only two seasons on record have been more lacking in extreme cold, with winter lows of 20 degrees in 1949 and 1937.
The snow chances and cold are coming as a low-pressure system moves across North Carolina and Virginia, where winter storm warnings are in effect. As much as six inches of snowfall is forecast in eastern parts of those states.
There has been 1.8 inches of snowfall so far this season at BWI, tied for third-least on record here.