Jim Nichols Weather Blog

From the 70's Thursday to struggling 40s today, at the risk of sounding utterly cliché...what a difference a day makes. High pressure is in control tonight...with a clear sky and calm winds, expect temperatures to p-l-u-m-m-e-t. It's going to get cold...the extra-blanket on the bed; dog doesn't want to go outside kind of cold tonight. A few people will reach down into the teens (I'm looking at you Mount Pocono!) while the rest of us remain in the low 20s. Sure, we haven't felt this kind of cold in a while...but hey...many of the bloggers here like the cold stuff anyway.

A cold front will arrive on Monday providing a good deal of rain showers Monday afternoon and Tuesday morning. As was proven on Thanksgiving...timing for the front is everything. There is a potential for the temperature to rocket into the 60s but for now I'm going to shoot for the mid-to-low 50s. Expect it to be windy...which is one of the reasons why it's *possible* to reach higher. Expect to lose your trashcan lids if you have collection on Monday.

Temperatures are set to level off by the end of the week as we are waiting the arrival of a pattern change next week. It appears that the Jet Stream is poised to ride right over Philly in the beginning of December. At this point, all the cold air that the jet is bottling up over the Midwest plains (the Dakotas) will shift our way. For those that want the really cold stuff...this could be your December gift. There is not a lot of indication on how long this will last, as the models become way too unreliable past this point. However, the models have been consistent in advertising this the last few days and it appears to be convinced that a decent cold shot with some storm possibilities will arrive the first few days of December.

Enjoy!