The Memorial Day weekend will begin with a big chill in Western Pennsylvania and much of the Tri-State area.
The National Weather Service has posted frost advisories or freeze warnings for most of the district from 3 a.m. to 8 a.m. Saturday, with the warning in place for counties north and east of Allegheny.
The weather service warned that sensitive or unprotected plants could be damaged or killed by the cold.
The temperature at 7 a.m. was in the low 40s with a biting wind, but nowhere near the record low for the date of 30 degrees set in 1963. However, the revised forecast high of 51 would break the record for the lowest high temperature ever recorded for the date, 52 in 1877.
Gusting winds brought a tree down on Forbes Avenue in Squirrel Hill this morning, blocking the road between Albemarle Avenue and Plainfield Street.
Temperatures throughout the region are expected to dip to near or below freezing overnight, then recover to the mid-60s in Pittsburgh on Saturday afternoon under sunny skies. A high in the upper 60s is projected for Sunday and the low 70s on Memorial Day, with plenty of sunshine.
Jon Schmitz: email@example.com, 412-263-1868 and on Twitter @pgtraffic.