Tag Archive for 'canadian maritimes'
December 22nd, 2008 by Steven DiMartino
7:05 AM
Today is going to be a very cold day, there is no getting around that. High pressure building in from the west in combination with the intense area of low pressure over the Canadian Maritimes will produce a strong pressure gradient over the forecast area, which will produce strong northwesterly winds. With temperatures today [...]
December 9th, 2008 by Steven DiMartino
The reason why I didn’t jump the gun on the solution from the GFS yesterday, specifically the 12Z GFS, was one simple and overriding reason. No negative NAO. No 50/50 low structure over the Canadian Maritimes. And a lot of timing needed to get conditions just right for a winter storm along the coast.
The [...]
December 4th, 2008 by Steven DiMartino
Can you feel the excitement in the air? Well if you can then you might be thinking about the clipper redevelopment seen on guidance the past 24 hours and what this storm may mean for the forecast area.
Now remember I said that I didn’t like any significant snowfall forecast out of this storm because of [...]
December 3rd, 2008 by Steven DiMartino
Can you hear that? Can you hear the beat of excitement grow for this Sunday? There are even hints on the morning news of a snow threat. Well, now let’s wait for a moment before we all start doing snow dances and watching individual model runs at 3 AM. Does the upper level pattern support [...]
November 30th, 2008 by Steven DiMartino
There is some good news and bad news I want to share with everyone this morning based on this coming week and the weeks to follow. I’ll start with the bad news first to get it out of the way.
The bad news for the medium and long range pattern is that upper low over the [...]
November 26th, 2008 by Steven DiMartino
Yesterday there was a lot of excitement when the medium range model guidance, especially the ECMWF produced a rather snowy solution for the coastal storm on Sunday. Even with the exciting model output, I had my significant doubts on this system playing out due to some of the points I made, one of which was [...]
November 25th, 2008 by Steven DiMartino
By the way I have gotten my email account pounded this afternoon, I could already tell that the models were brewing up some mischief for this weekend. The question is if the models are on to something or if the solution we are seeing is pure fantasy.
The ECMWF is the main culprit here. Let [...]
November 9th, 2008 by Steven DiMartino
The cold front, upper low, coastal low, and all the mess that has impacted the forecast area the past several days is now well east of the forecast area and into the northern Atlantic. Canadian high pressure will build into and dominate the forecast area through Wednesday with clear skies and comfortable temperatures. Temperatures will [...]
November 1st, 2008 by Steven DiMartino
There’s an interesting disturbance over the Southeast this morning that may play an important part in next weekend’s weather. The disturbance is expected to move towards the Bahamas where a surface low pressure system will take shape and intensify.
Now, the model guidance has some different solutions on how this low pressure system interacts with [...]
October 7th, 2008 by Steven DiMartino
The model guidance this evening is giving us a prime example on how a strong ridge in the East doesn’t always translate to warm conditions for the forecast area.
The rainfall currently over the Ohio Valley will weaken as the upper trough supporting the rainfall splits and weakens. Much of the PVA associated with this rainfall [...]