The cold air that blasted into the Northeast yesterday will be replaced by milder air as we approach the weekend. There are two main issues that could cause complications. One is a new high pressure area that will build into New England on Sunday. It will maintain chilly conditions in northern New England. We will have to see how much onshore flow (wind blowing from ocean to land) sets up, because with cold water off the coast, winds from that direction will certainly not be mild.
The second issue is how far north precipitation will advance as a storm develops over the Southeast this weekend. For now, we are saying rain doesn't get much past southern Virginia, but until we see the storm take shape there will be some uncertainty. The video discusses what should happen in the Great Lakes and Northeast. 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.
Looking ahead to <strong>next</strong> weekend, the Mothers Day Weekend, we see quite a difference between the GFS model and European models on where cold Canadian air is heading at 2 a.m. Sunday.
Rain is spreading across the Middle Atlantic states today. Dampness will linger from southern New York state to Virginia tomorrow even as the main rain area moves offshore.
For the rest of the week and this weekend, the upper-air "steering winds" will be arranged in two separate streams. The northern branch will send air from central Canada toward New England.
In the Northeast today, the low pressure area shown on this map will move to the East Coast today, pulling the front south as a cold front. Showers and gusty thunderstorm will affect areas south of the front while steady rain and gray skies are common to the north...
This map shows predicted temperatures for 2 p.m. ET today. This is about two hours before the daily high temperature is often reached. Note how close the chilly and warm air masses are to each other in the Northeast and eastern Canada.
Tomorrow is the anniversary of the birth (in 1564) and death (1616) of William Shakespeare. For this weekend, we expect no Tempest in the Hamlets of the Northeast because no Merchant of Menace will be nearby.