Friday, July 06, 2012

Prelude To Worst Heat of Heat Wave

Believe it or not there was some slight relief in portions of the area last night from the heat.  A weak front did slip down yesterday, helping pull down some lower humidity levels from the north and helping bring a relatively refreshing night to the Lehigh Valley and's 60 degrees in Allentown at 6 AM, 57 in Quakertown.  Hopefully folks up to our north are enjoying this bit of relief as these modest humidity levels will only last through today.

It will be another hot one through the region -- even places that are starting cool locally will push 90 by day's end, with mid 90's a likely bet along I-95 and points south.  We're pushing Philly for 96 for a high this afternoon with a light west to northwest breeze.  The "good" news is that humidity levels will remain modest today as dew points should hang around 60, which means that the heat index values should not climb much beyond the projected high temperatures -- mid and upper 90's is likely, with a 100 or 101 possible south of the city later on.

Excessive heat watches are up for Central and North Jersey, away from the Philly metro, with excessive heat warnings now up for South Jersey, Delaware, and the Philly metro through Saturday.  Heat advisories are up for the Lehigh Valley and Berks County through Saturday as Saturday is expected to be the hottest and most oppressive of the heat wave...100+ is not out of question in a good chunk of I-95 and South Jersey.