Thursday 10 a.m.
The snow that was sequestered from downtown D.C. yesterday was appropriated for Boston this morning, where the snow and a temperature drop to the freezing point turned the morning commute into a nightmare. Since a liberal amount of snow (3-6 inches in many spots from Providence on past Boston (some computer models print out much more, but we'll watch it for now)) will fall tonight, it will be very slippery with poor visibility. Conservative driving habits may keep you independent from injury or accidents.
The cold air will depart this weekend, and a welcome sojourn toward springtime weather will spread from Chicago to Boston between Friday and Sunday.
Here is our working draft of projected snow amounts. This draft map is updated regularly is not to be copied elsewhere.
In yesterday's report I made an analogy about predicting snow amounts using our 16 year old American Eskimo dog Sam as an example. I told Sam about it before taking this picture, but he just looked at me.
This map shows the pressure pattern around the big storm that some people in Boston and Providence are comparing with the Blizzard of '78.
In the worst-hit areas, plan for travel bans (for all non-emergency activities) because of impassable roads and extremely poor visibility. This map shows our projection for snow accumulations by early Wednesday. In many areas the heaviest snow should fall overnight and tomorrow morning.
In the worst-hit areas, plan for travel bans (for all non-emergency activities) because of impassable roads and extremely poor visibility. If you get stranded, rescue crews may not be able to reach you. Storms like this sometimes generate thunderstorms within the heaviest snow bands. The map shows predicted snow accumulations by early Wednesday.
It appears likely that many normal activities can go on through the day Monday, as long as the typical cautions for light to moderate snowfalls are observed. Tuesday will be an <strong>entirely different story</strong>. This map shows the GFS- predicted snowfall through 7 P.M. ET Monday:
The second storm we have been talking about will affect the Middle Atlantic region late Sunday and Sunday night. This GFS forecast map is for 7PM ET Sunday and shows precipitation amounts for the 6 hours up to that time.