Two cold fronts will travel from the northern Plains to the New England and mid-Atlantic states late this week and this weekend. The first front will bring a mild, Pacific air mass into the Ohio Valley, then the East, while the second front will eventually bring much cooler air through the northern Plains and Midwest into the Great Lakes and Ohio Valley, then the Northeast.
Thunderstorms broke out in eastern New England this morning. Here is a lightning map showing strikes between 8 AM and 10:30 ET:
Temperature battles will be fought from the Mississippi Valley to the mid-Atlantic this weekend. At the same time, a storm coming into California Saturday will eventually become a much larger and slow moving system that suggests a lousy week of weather next week for a large part of the country.
This is my latest forecast model interpretation of the weekly weather patterns going into May......