Thunderstorms flared up as expected in Eastern Pennsylvania, but quickly died down with nightfall. Temperatures are currently in the seventies, but will slowly drop. Highs on Tuesday will likely be reached within the first hour or two. Isolated showers and possibly some thunderstorms could pop-up into the morning commute.
The cold front essentially stalls right over the region on Tuesday and Wednesday. A strong wave of low pressure will develop along the cold front, energizing the front. Therefore, periods of showers and thunderstorms will be likely. Severe weather will be at a minimum as the clouds and frequent showers will hold down the temperatures and keep instability in check. There still is enough instability for at least some thunderstorms with heavy rainfall being the main threat, although an isolated gusty thunderstorm is not out of the question. The models are keying in on Tuesday Night into Early Wednesday Morning for the heaviest round of very heavy rain and heavy thunderstorms. Should peaks of sunshine occur tomorrow, then we may have an increased threat for stronger thunderstorms but at this point it will be a “nowcast” event.
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