This video describes and shows how low pressure area from the Midwest should cause snow as it moves eastward. Milder weather and rain are likely for most of the Middle and North Atlantic coast late this week, but more cold weather will follow
This map shows our snowfall forecast for the event starting near Chicago today and reaching the Northeast Corridor tomorrow before sunrise from Philadelphia to New York City... after the morning commute in Boston.
In other words:
Today is Presidents' Day; so let's see what's happening around the country at presidential locations. The Obama residence in Washington, D.C, near Reagan National Airport has sunshine today with afternoon temperatures in the 30s. North Adams MA, Coolidge Corners outside Boston and Lincoln ME will have sunshine today but with cold gusty winds .
The weather should not veto travel plans in the East today, but snow will disrupt the morning commute tomorrow. With dry conditions today, the high temperature will be 31 in Garfield NJ and 27 near Nixon Rd in central Pennsylvania... colder at Taftville CT and Trumansburg NY... but near 32 in Buchanon and Chadd's Ford, PA. It was35 this morning in Wilson, NC today but will turn milder this afternoon.
There is snow today in Clintonville and Madison, WI. Chicago's Kennedy and Eisenhower expressways as well as the Jane Adams faced a rapid onslaught of snow this morning and it will get slippery this afternoon from Van Buren and Jackson Counties in Michigan over to Roosevelt Park, Snow will reach Cleveland by night.
Jefferson City Missouri will have a windy afternoon, while Jefferson Maine has a frigid chill in the air. It will become warmer at Port Arthur and Tyler, TX, with the warmup extending from Monroe LA over to Jackson MS, Hoover AL and then Cartersville GA. The high pressure area administering the warmup will also affect Harrison AR and Johnson City TN.
In central Florida the day started cool, but it'll go toward the 70s in Polk County and Fort Pierce this afternoon. It'll be mild at Busch gardens.
Mt McKinley will be cold. More dry weather is likely this week at Harding AZ and Grants NM. South winds will shift to northwest to bring a temporary chill back through Lincoln, Hayes and Fillmore, NE today, but it will be milder. That's the weather from ... hopefully ... unimpeachable sources.
This map shows the pressure pattern at 9 a.m. ET. As the high moves closer and the storm moves farther away tomorrow and Wednesday, there should be an increase in sunshine with milder afternoons.
This map is the GFS forecast for when weekend rain makes its most northward advance early Sunday. The model then shows drying from north to south during the day Sunday. The ensemble mean has the northern edge in the same area. Looking ahead, it appears that warmer air is coming when May starts.
This map shows the GFS model forecast for Saturday evening. In the last day or two, the models have trended northward with the precipitation. If it trends even farther north, the issue of possible snow would need to be addressed. Check back later for updates, please.
The GFS (U.S. Model) predicts a major storm for the Middle Atlantic in the middle or late part of next week. This map is the GFS forecast for next Thursday (April 30) at 8 a.m. ET. Just to put you in a better mood, the second map (for May 4) shows what would be a sunny and pleasantly warm spring day.
This map shows the pressure pattern earlier this morning. You can see the extensiveness of the area of west to east winds. As a storm north of the Upper Great Lakes moves eastward, the flow will become more northwesterly.
This year, the "slight" category has been divided in two: slight and enhanced. When seen together on an SPC map, the progression makes sense. When the term "enhanced" is used alone, it can be a challenge, at least until we get used to it.