Temperatures were significantly below normal overnight Monday, April 22 and into Tuesday morning for the Washington, D.C. area. The National Weather Service (NWS) in Baltimore reported on Twitter that temperatures were forecast to be at or below freezing for much of the region, issuing Freeze Warnings and Frost Advisories for the area:
Below normal temperatures in the 30s are expected across much of the region tonight. This will lead to the development of frost in many areas. Frost/freeze headlines are in effect.
Freeze Warnings & Frost Advisories are in effect for most of the area from 2am tonight to 8am Tuesday as temperatures drop into the low to mid 30s. The growing season hasn’t started yet in the Alleghenies.
A map of temperatures provided by NWS Baltimore shows the extent of the below normal temperature forecast:
