Tag Archive for 'mid level'
March 14th, 2010 by Steven DiMartino
4:10 PM
Another round of rainfall is expected tonight with this storm, however the worst conditions are over.
The storm developed initially as a frontal boundary off the New Jersey coast. As a strong upper low started to drive towards the Mississippi Valley, the low and eventually mid level winds began to veer to the southeast off [...]
March 11th, 2010 by Steven DiMartino
4:25 PM
The storm is starting to organize over the Plains, Gulf Coast, and Southeast. The model guidance at this point is in very strong agreement for a widespread heavy rainfall starting tomorrow afternoon and continuing on through Sunday morning with rainfall amounts by Monday morning ranging from 2 inches to as much as 5.5 inches [...]
March 10th, 2010 by Steven DiMartino
4:19 PM
Clouds are already building over much of the northern Mid Atlantic this afternoon in response to the increasing moisture from the Atlantic as the high pressure system that has produced great weather conditions the past few days now exits into the Atlantic. A weak mid level disturbance was able to use some of this [...]
February 27th, 2010 by Steven DiMartino
11:30 AM
Through this winter one of the major impacts that has significantly impacted snow fall totals is the development of mesoscale snow banding within the precipitation shield. The impact of such banding has produced staggering snowfall gradients throughout the region and has created significant impacts on many locations this winter.
Mesoscale banding can have several different [...]
February 24th, 2010 by Steven DiMartino
8:40 AM
A major winter storm is starting to develop over the Gulf Coast that will have a lasting impact on the entire northern Mid Atlantic tonight through Friday evening.
This morning, the water vapor satellite picture shows two disturbances beginning to interact over the Tennessee Valley. By this afternoon, these disturbances will form a powerful upper [...]
February 22nd, 2010 by Steven DiMartino
9:41 PM
The first storm to impact the northern Mid Atlantic this week is going to generally be a miss, however more potential storms are on the way.
Tonight, a new coastal low is forming off the North Carolina coast as a primary low is weakening over Lake Erie. The continued dominance of the low over the [...]
February 3rd, 2010 by Steven DiMartino
9:58 PM
As expected, the models are waffling a bit and have trended north and then south. The latest 00Z NAM appears to be trending south as well, but the let’s look at what if anything has changed in the set up leading up to this storm.
First and foremost, the Sub Tropical disturbance is very [...]
February 3rd, 2010 by Steven DiMartino
– Weather When Posted –Temperature: 30°F;Humidity: 92%;Heat Index: 30°F;Wind Chill: 27°F;Pressure: 30.08 in.;
February 1st, 2010 by Steven DiMartino
– Weather When Posted –Temperature: 24°F;Humidity: 58%;Heat Index: 24°F;Wind Chill: 18°F;Pressure: 30.27 in.;
January 22nd, 2010 by Steven DiMartino
9:00 AM
An area of rain and snow showers is expanding and intensifying over south-central Pennsylvania this morning. This area of precipitation is developing due to enhanced lifting from the upper low over Virginia. As the upper low moves east along with the rapidly intensifying coastal low off the Virginia coast, this area of precipitation will [...]