A warm and increasingly humid day is expected Thursday in the Lehigh Valley, with potential for late afternoon and evening thunderstorms developing primarily west of the region.

Temperatures will climb into the low to mid-80s, with the rising humidity levels creating muggy conditions.

The National Weather Service forecasts isolated showers and thunderstorms developing after 4 p.m., with the highest probability along and west of the Interstate 95 corridor.

The weather service’s Storm Prediction Center has placed the Lehigh Valley and far-western New Jersey in a marginal risk for severe thunderstorms, indicating a low but present potential for strong winds or heavy rainfall.

Residents should be prepared for rapidly changing weather conditions Thursday evening, with potential for locall

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