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One More Dry Day Saturday; Sunday Looks Wet

Climate report for Friday
Climate report for Friday
Scott Derek

Friday totally had that Fall feel to it; there was sunshine and those fair weather cumulus clouds once we reached our convective temperature(the estimated temperature that the surface must warm to in order for clouds to develop) again. After a morning low of 60 at Philly International Airport we reached a high of 77 in the afternoon. Those seem like the average high for the middle of SEPTEMBER, not August! Our average high should be 86 while the average low is supposed to be 68! We ran 8-9 degrees below that!

High pressure is on top of the region, but a cold front near the Great Lakes will push southward on Sunday
High pressure is on top of the region, but a cold front near the Great Lakes will push southward on Sunday
NOAA

There are still a few clouds around, but they are dissipating as they are pushing eastward; this means overnight shall be mostly clear with lows in the upper 50s in Center City, but lower 50s in the suburbs(upper 40s in the higher elevations!). Saturday will feature sunshine and then some higher clouds in the afternoon ahead of a cold front that's currently to the north of the Great Lakes. Highs will be in the lower 80s and a south-southwesterly wind(which means there will be a sea breeze along the shore in the afternoon).

After lows in the upper 60s overnight Saturday with increasing clouds we will see showers and thunderstorms after sunrise as that cold front pushes southward; highs will make it toward the middle 80s by the afternoon as although the showers may end after lunch we could see some sunshine and then another round of showers/t-storms as the front pushes through by the evening. Overnight Sunday will be in the middle 60s with a mostly clear sky while Monday will just be in the lower 80s with a northerly wind and a sun/cloud mix.

Come Tuesday that frontal boundary to our south will try and progress northward as a warm front, but it never makes it past the Mason-Dixon Line; there will be an area of low pressure riding along it and right now weather models have a Tuesday night setup taking place from Baltimore up to Southern NJ with those heavy soaking rains(leading to flooding). Highs will be in the lower 80s with showers and thunderstorms in the afternoon. That front will sit just to our south for Wednesday and we should stay dry for the most part with highs in the lower 80s while Thursday will feature unsettled showers and thunderstorms with highs once again in the lower 80s.

Remember that you can check out the 7-day forecast(as well as obtain radar and satellite maps) any time at www.scottderekwx.com/forecast.html.