Mar 4, 2014 11:40 AM by Associated Press
WASHINGTON (AP) - A blast of arctic air has sent temperatures into the single digits today in some parts of the mid-Atlantic and the Northeast.
Airports in Baltimore and near Washington, DC have seen record-low temperatures for the month of March. It got down to four degrees this morning at Baltimore's airport, breaking a record set in 1873. Dulles International Airport outside Washington saw a reading of one degree below zero, tying the record for the month set in 1993. It was a second straight day of record lows for the two airports.
Schools and government offices along the East Coast are closed again today, or have delayed opening. A half-foot of new snow is on the ground in some spots. And for now, at least, it isn't going to be melting.
Forecasters say there's been a return of the "polar vortex" -- in which the jet stream is bringing cold air down from the extreme northern latitudes.
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