December 29th, 2008 by Steven DiMartino
7:26 AM
The negative NAO pattern is well on the way of developing and the first clipper that will impact the forecast area will help to enhance the 50/50 low that will be a major player in the later pattern. First though, let’s discuss the next three days.
High pressure will slide through the forecast area today [...]
December 24th, 2008 by Steven DiMartino
6:30 AM
The snow pack in place over the interior is doing its job of slowly down the warm air advection at the surface, which is supporting an area of freezing rain over locations north and west of the Philadelphia and New York City metros. Freezing rain even feel briefly along the coast before temperatures have [...]
December 4th, 2008 by Steven DiMartino
Enjoy the warm conditions this morning and early this afternoon, because the rest of the forecast period will feature well below normal temperatures and even the potential for snow, which I will discuss in the next post.
The strong cold front is currently (6:50 AM) moving through western Pennsylvania with a line of light to moderate [...]
November 25th, 2008 by Steven DiMartino
Take heart snow lovers everywhere, this rainfall this morning is yet another step to the snowy December that I think will unfold!
The cold front is in the process of moving through the forecast area right now (9:15 AM), and will continue to progress to the northeast. The heavy rainfall over Long Island and Connecticut will [...]
November 20th, 2008 by Steven DiMartino
So is everyone welcoming an early visit by winter? If not, then you are not going to enjoy the forecast discussions today nor much of December. More on that later.
Cloudy conditions are expected through much of the day as a weak clipper moves towards the Mid Atlantic coast. The low currently (6:50 AM) is over [...]
November 18th, 2008 by Steven DiMartino
The low pressure system that is rapidly developing over the Gulf Stream is too far east to produce any type of significant precipitation over the forecast area. In fact, at most, locations along the immediate coast may see a stray flurry along the immediate coastal locations of Long Island and New Jersey. The main impact [...]
November 3rd, 2008 by Steven DiMartino
The water vapor images this morning tell a compelling story about how this week will play out in terms of this coastal low. Turns out the GFS may have been on to something this weekend with bringing the coastal low into the forecast area faster than all the other guidance.
Notice the strong disturbance over [...]