Monday 10 AM
A slow-moving low pressure area now heading into the Northeast has an abundance of moisture, so some areas will have street and highway flooding. The greatest impact areas may be at the places that had the most rain from Andrea.
The current pattern has caused some folks to wonder what happened to summer. One of the hash tags on I saw on twitter this morning was #whereissummer. That question will be answered quite forcefully in the central and southern Plains this week, but excursions into warm, sunny weather will be transient from the Great Lakes to the Middle and North Atlantic states.
Northeast video from 7 AM Monday:
Chicago area video
The Northeast regional radar at 10 AM showed a large area affected by showers and thunderstorms:
The map below the video is one of the GFS solutions for where the southeast storm will be early Saturday. The precipitation is predicted to be farther north than suggested by other models.
It is freezing cold in the Northeast this morning, but this map shows that much more mellow mildness has reached the Plains.
Extensive precipitation straddles both sides of the cold front that was moving through central New York and central Pennsylvania as of mid morning. This radar shows the distribution of rain and snow; some temperatures are added.
The cold front approaching the East shows up quite well in this pressure analysis. Several temperatures are plotted to give you a sense for how much the temperature changes behind the cold front. At Chicago, it went from 60 at 4 a.m. to 39 at 5:19, a 21-degree drop in little more than an hour.
Temperatures on Sunday and Monday will range from the 60s in parts of New England to near 80 in Maryland and Virginia. However, a strong cold front will then trigger and perhaps a few thunderstorms as it ushers in air that will be 30-40 degrees colder than it will be ahead of the cold front.
During the early morning hours of April 15, there will be a total lunar eclipse visible across North America. This eclipse is the start of a <em>tetrad</em>, a series of four total lunar eclipses over a two-year period. The totality begins at 3:07 a.m. ET, 2:07 a.m. CT, etc.