The muggies are back today -- it won't be oppressively hot out today but humidity levels will be high enough today to bring a summery feel to the region. Along with more humidity is a risk for thunderstorms throughout the day. Radar is already picking them up out to the west -- showers and storms in Maryland and Southwest Pennsylvania are slowly working east this morning and we'll see some of that activity around here in a few hours if they hold together.
After whatever amounts from this morning's activity moves through, off and on sun will greet us through the day, further destabilizing the atmosphere and allowing for more thunderstorm development this afternoon. While (as of this morning) there is no declared risk of severe weather from the Storm Prediction Center, this airmass yields the potential of a few storms reaching severe criteria later on today in Pennsylvania. The threat of localized heavier downpours exists as well and may ultimately be the bigger threat, not damaging winds (although those can't be ruled out). Thunderstorm development looks to be scattered in nature (see below), with the focal point generally starting in Central Pennsylvania and then working east or east-northeast. Models are uncertain about how widespread the thunder threat is and exact timing, with the NAM a bit later compared to the GFS on firing stuff up. Odds, however, favor late afternoon through late evening (5-11 PM) locally for storms to move through, which means the Phils' game could have some delays if the timing is "right."
More: Current Weather Page
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