Friday 10:45 a.m.
Here is the morning video, and I was dressed for the occasion:
A fast-moving storm will spread snow to the East Coast by the end of the day. Most of the accumulations have been light, but heavy snow broke out in southwestern and central Ohio. The Dayton area picked up a quick 3 inches. The map below shows the pressure pattern at 10 a.m. EST. The close spacing of lines from northern Georgia to West Virginia implies strong winds heading north. However, on a line from central Kentucky to northern West Virginia, the lines quickly spread apart, There and just to the north is the area where the heaviest precipitation was breaking out.
Computer models suggest this enhanced snow will continue eastward to the middle of Pennsylvania then weakens. There will be updates of stories and videos on AccuWeather.com all afternoon and evening. The main thing this morning was how little snow it has taken to cause nasty travel conditions. The Chicago morning rush hour was a nightmare when most places had about a half inch of snow. The total Chicago snowfall surpassed 1 inch for the first time this season. The last time they had that much was one month less than a year ago.
As milder air advances northeastward, it will run into the retreating cold air. This could lead to assortment of precipitation types, with freezing rain posing the greatest danger. As the mild air flows over the cold ground, areas of dense fog could develop.
Later next week, cold will regain its place in the Great Lakes and Northeast and mildness will be in the shadows on Groundhog Day.
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.