As a push of cooler, less humid air approaches western Pennsylvania, northern West Virginia and western Maryland Thursday afternoon and evening, spotty heavy, gusty thunderstorms will form over the region.
While the storms will be hit-or-miss, a few communities can be hit hard with damaging wind gusts and flash flooding.
Late Thursday afternoon, a thunderstorm wind gust reached 68 mph in Westmoreland County, Pa., according to a report by AWOS.
The storms have the potential to cause travel delays and sporadic power outages along the I-70, I-79 and Route 22 corridors.
The risk of severe weather will diminish later Thursday night as the cooler, less humid air begins to filter in from Canada.
Highs will be near 80 degrees Friday and Saturday with nighttime lows in the 50s to near 60 degrees. The sky will be generally clear over the region during the period. However, patchy fog is possible during the early morning hours along the rivers.
During next week, warmth and humidity will return. However, there is also the chance of additional rounds of showers and thunderstorms.
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Severe thunderstorms capable of causing property damage and flooding will swing into the southeastern United States and Ohio River Valley into Sunday night.
Dangerous thunderstorms and flash flooding will continue to threaten lives and property across the central United States through Saturday night.
While a storm will douse outdoor plans and lead to flooding on some of the Hawaiian Islands, enough rain may fall to ease drought conditions into the start of May.
Milder air will erase the recent chill and snow across Germany by May Day, though rain threatens to spoil the holiday for western and southern areas.
Temperatures will be put on a roller coaster ride in the northeastern United States through the start of May, delivering bouts of summerlike warmth.
While the recent cold snap will be over, bouts of rain will persist and threaten to disrupt outdoor plans across the United Kingdom during the Bank Holiday weekend.
It will feel like the calendar has been turned back to winter instead of moving ahead to May as snow sweeps across the central United States into Monday.
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