Wednesday started cold but became milder in the afternoon. In New England, gusty winds accentuated the chill. The sky looked lke this in central Pennsylvania this afternoon:
It is doubtful that areas from the Ohio Valley to the Northeast Corridor will have any extended period like this for the rest of April.
The late Wednesday afternoon satellite, radar and lightning maps begin to tell us why.
The stripe of blue from Michigan southeastward represents snow and mixed precipitation that will advance to the Northeast coast by tomorrow morning. It is mostly light. The larger area of rain will not reach the Northeast until later tomorrow or tomorrow night.