Pittsburgh: Storms, Then Dramatically Cooler

By Alex Sosnowski, Expert Senior Meteorologist

September 11,2013; 8:30PM,EDT

 

 

After a brief spell of late-summer heat, a couple of rounds of thunderstorms rolled through Pittsburgh, western Pennsylvania, northern West Virginia and western Maryland, followed by some of the coolest weather of the season so far.
A change is on the way after midweek high heat and humidity.
The combination of temperature, sunshine, humidity and other factors made it feel like the temperature was in the upper 90s in the urban areas for a few hours during the afternoons. However, temperatures on Wednesday hit a high of 88 degrees.
RELATED:
Forecast Temperature Maps
Western Pennsylvania Interactive Radar
Locally Severe Storms: I-90 Wednesday, I-95 Thursday
One or more rounds of thunderstorms are forecast from Wednesday afternoon and on into Thursday. Any storm through Thursday can be locally strong with blinding downpours and gusty winds. A few areas could be hit with travel delays and sporadic power disruptions.

The storms will break the heat.
Thursday night and Friday, Canadian air will settle in over the region with much lower temperatures and humidity, as well as a gusty breeze. Some people will feel refreshed, while others may mind the sudden chill.
The pattern Friday into the weekend could yield some of the lowest temperatures of the season so far for the metro area and the region in general. High temperatures will only be in the 60s in many locations.