Central Pennsylvania is bracing for a significant warm-up with temperatures climbing into the 80s and 90s Wednesday and Thursday, accompanied by increasing humidity and potential thunderstorm activity. A moderate heat risk is in effect, with a cold front expected to trigger rounds of showers and thunderstorms starting Thursday afternoon.

The next 24 to 48 hours will bring substantial temperature increases, with daytime highs reaching 80 to 90 degrees across the region. The National Weather Service warns that residents may be particularly sensitive to the heat due to limited recent heat acclimation following a cooler, wet spring. Heat index values are anticipated to approach the low 90s, creating potential health risks for vulnerable populations.

Thunderstorm chances will increase Thursda

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