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Humidity Increases Starting Tuesday

Climate report for Monday
Climate report for Monday
Scott Derek

Monday turned out to be a better day than I first thought; the clouds were non-existent, but a short wave to the north was going to bring in the clouds once we reached the convective temperature(the estimated temperature that the surface must reach in order for clouds to develop). The clouds did bubble up, but there was not much mid-level moisture so the clouds didn't self-destruct the sky; with that in mind after lows in the middle 60s Philadelphia International Airport reached 86 in the early afternoon.

High pressure is still on top of the region, but the stationary front to the south is providing mid-level clouds

The clouds, however will be around overnight(mainly to the south) with lows around 70; there is low-level moisture around thanks to the stationary front to the south and there will be fog to along the coast. Morning fog will give way to sunshine in the afternoon on Tuesday as it will also be humid. Highs will be in the upper 80s with a continued southerly wind. After a partly cloudy sky(maybe some fog once again) overnight and lows in the lower 70s we'll be in the lower 90s on Wednesday with increasing clouds by the late afternoon.

Where will the clouds come from? Well, a cold front will approach from the west! There will showers and thunderstorms overnight Wednesday and lingering into Thursday itself; lows will be in the middle 70s and highs will be in the middle 80s. We clear that all out overnight Thursday and high pressure sets up for Friday and leading into Saturday with a northerly wind and highs in the lower(Friday) to middle(Saturday) 80s.

Another front will be pushing in from the west on Sunday as highs will be in the lower 80s, but remain humid throughout the day; showers and thunderstorms will not only continue through the evening on Sunday, but also Monday as well with highs in the middle 80s. We'll start to clear out by next Tuesday, but honestly forecasting after Day 5 is pretty much a crapshoot since the atmosphere is so chaotic(that's the dead truth; I'm not knocking my forecasting skills, and in fact I'm pretty damn good at it!).

So that's it for now and don't forget that you can see the 7-day forecast, follow the radar and satellite loops as well at

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