1:05pm radar update: This initial line will target NE PA and northern Lehigh Valley over the next few hours. There's still the expectation with the front behind this, a 2nd line forms across South Central PA around 3-4pm and moves eastward to SE PA, NJ, DE, MD thru early evening.

Already seeing the bust tweets attacking the SPC...relax with that shit. Let it play out. The environment in front is still destabilizing as we speak. We have observational data that confirms it. New 16z HRRR is trying to show this also: