Synopsis: Pennsylvania will be experiencing warmer temperatures early this week dying down into the 60s on Friday. The majority of days this week will see sun with a chance of rain on Wednesday and a chance for thunderstorms for much of the state on Thursday. Nothing truly exciting is currently happening around the nation except for heavy rains and flash flood warnings in the 4 Corners Region out West.
Outlook: Consistent southerly winds advecting moist, hot air will cause temps and dewpoints to spike well above average tomorrow and Wednesday. This circulation pattern will be associated with a developing low to the west that will move NE over the Great Lakes. We won't see much in the way of storms from this system as its associated (and weak) fronts move through on Wednesday. GFS shows it merging with another developing low in Ontario and strengthening as the combined low heads eastward. The cold front associated with this system WILL impact PA on Thursday, bringing storms (some strong) in the early afternoon. Afterwards, a NW flow sets up, bringing chilly temperatures with highs in the 60's across much of the commonwealth.
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