We have all the ingredients coming together late this week for a truly wild end to April. A storm system will fire on all cylinders with major cold driving south out of Canada into the rear while out ahead, the first real surge of heat (upper 80s/low 90s) lifts up the Eastern coastal plain.

Looks like a heavy snow event is likely for Denver, Cheyenne, Rapid City and Minneapolis.

GFS surface/precip

2m temp anomaly late Sat

Saturday could see Denver struggle to reach 30 with snow and wind while 90 is reached in DC, maybe Philadelphia.

Expect some unusually cold nights for the Rockies once this storm clears.