Weather forecasters expect a dramatic change in Pittsburgh's weather starting today.
At 8:30 a.m., the National Weather Service in Pittsburgh issued a severe thunderstorm watch for all of southwestern Pennsylvania, northern West Virginia, western Maryland and southeastern Ohio until 4 p.m.
At 9:57 a.m., the temperature measured at Pittsburgh International Airport was 68 degrees, breaking the record high of 66 degrees set in 1916, according to NWS meterologist Rihaan Gangat. But, he said, it will be all downhill from there.
By 8 a.m. Thursday, the bottom will fall out, with the temperature plunging by 40 degrees and snow flurries moving in.
The National Weather Service also has posted a flood advisory for Pittsburgh, with the rivers at the Point expected to crest overnight Thursday just above the level that floods the Mon Wharf. The wharf is open today but parking is restricted to the back of the facility. It will be closed Thursday and likely on Friday.
Much of the rest of Western Pennsylvania, from counties including Greene, Fayette and Westmoreland, and to the north and east, is under a flood watch from 1 p.m. today through Thursday morning.
For the latest watches, warnings and advisories, visit the National Weather Service in Pittsburgh's website.
First Published January 30, 2013 12:45 PM