September 15th, 2009 by Steven DiMartino
2:21 PM
A very raw and windy day is setting up for the forecast area tomorrow as high pressure positions itself over southeastern Canada over the next 24 hours.
The upper level trough that has been east of the Mid Atlantic will retrograde back towards the Great Lakes tonight. A strong disturbance will dive south from central [...]
September 13th, 2009 by Steven DiMartino
11:45 AM
This morning there is an a lot of moisture sitting off the Southeast coast that has me very suspicious. The moisture is being drawn northward by a strong upper low that is positioned over eastern Texas this morning. However, there seems to be some upper level cyclonic development off of the eastern Florida coast [...]
September 2nd, 2009 by Steven DiMartino
5:15 AM
High pressure will continue to be the dominant influence on the region through the next three days. The high pressure system is supported by weak convergence and confluence at 500 MB this afternoon. This pattern is expected to remain in place through this week, which will keep the dry, cool air mass in place.
While [...]
August 31st, 2009 by Steven DiMartino
5:15 AM
The start of September is going to be unlike any weather conditions seen this summer, namely dry. High pressure over the Great Lakes will dominate the Mid Atlantic and New England through the next several days. The high pressure system is from central Canada and is bringing a dry, cool air mass into the [...]
June 20th, 2009 by Steven DiMartino
7:30 AM
The forecast for today through tonight is best described as significantly complicated and potentially very active. The main theme is basically the progression of the warm front currently over southwesterly Pennsylvania through eastern Virginia. I want to start with the fact that the surface low pressure system is further north and weaker than forecasted [...]
June 11th, 2009 by Steven DiMartino
7:34 AM
The theme for this summer, raw and cool, looks to continue as once again the forecast area is positioned north of a stationary front this morning. The forecast area is clearly under the influence of a marine air mass as an easterly wind fostered by high pressure over Maine and a stationary front over [...]