Sniffed this out firstly on Monday! Some knew
...Northeast...
A wave of low pressure is forecast to develop over eastern PA early
in the day, translating northeastward along the front and into ME by
late afternoon. Stronger heating and steep low-level lapse rates
should develop from VA into eastern PA/NJ and into interior southern
New England, with MLCAPE around 1500 J/kg as an areal average.
As the warm air mass develops and accelerates north ahead of the
cold front, both instability and shear parameter space will become
favorable for severe storms, including supercell potential. A line
of storms is expected by 17 to 18Z, from eastern PA toward the
Hudson Valley, expanding N/S and pushing east through the afternoon.
Given 40-50 kt effective deep-layer shear and enhanced low-level
shear with the midday surface theta-e surge, the initial storm mode
may be cellular along the boundary, with a brief tornado or two
possible along with some hail. Damaging winds are then most likely
as outflows merge, and spread east across the remainder of the
region through late afternoon.