Tag Archive for 'surprise'
October 5th, 2009 by Steven DiMartino
4:45 AM
The Tropical Atlantic has produced a surprise tropical storm over the northeastern Atlantic, roughly 420 miles northeast of the Azores Islands. Tropical Storm Grace is a compact tropical system that has developed along an old stationary frontal boundary. The future of Tropical Storm Grace is pretty much nailed down as a deep trough over [...]
September 2nd, 2009 by Steven DiMartino
11:20 AM
Tropical Storm Erika continues to weaken late this morning as strong southwesterly shear has sufficiently disrupted the low level circulation. Sustained winds have fallen off from 60 mph to 40 mph and the pressure has now risen to 1008 MB.
There is a pretty wide range in the models as far as solutions for [...]
March 30th, 2009 by Steven DiMartino
6:47 AM
The main phrase to describe the pattern for the end of this week and into next weekend is progressive. There are no sustained troughs that will drive the pattern, instead troughs will dive into the West and lift northeastward into the eastern Great Lakes. This type of pattern produces fast moving low pressure system [...]
March 29th, 2009 by Steven DiMartino
5:07 PM
I have to admit I am pretty surprised that the SPC has not issued a severe thunderstorm watch at the very least over the Philadelphia metro. I don’t think anyone can really question as to whether severe thunderstorms will form this afternoon, as they already have. At this point, if I was at the [...]
March 11th, 2009 by Steven DiMartino
7:05 AM
The model guidance in this period is in some disagreement on how to handle the upper level development of the pattern and therefore the surface features. I think the GFS is an outlier here and leaned more on the ECMWF with some tweaks here and there.
On Sunday afternoon, a disturbance in the southern [...]
March 8th, 2009 by Steven DiMartino
9:11 AM
March madness is about to begin for the forecast area. Well, really it’s already started. So far this March we’ve had a snow storm that produced more snow for some locations than what we received for December, January, and February combined; we’ve had mid 60’s for highs, and now an eventual return to cold [...]
February 27th, 2009 by Steven DiMartino
6:06 AM
When you walk out this morning, you are going to be pleasantly surprised with how warm it is as temperatures are already rising through the 40’s this morning. A strong cold front over the Ohio Valley will continue to slowly move towards the forecast area with rain entering the region by around 6 PM [...]
February 21st, 2009 by Steven DiMartino
9:17 AM
The Alberta Clipper that will impact the forecast area late tonight through Sunday morning is currently entering the Ohio Valley and will race towards the eastern Great Lakes by this evening. The latest water vapor images do hint at the potential for some coastal redevelopment as the base of the trough is showing the [...]
February 14th, 2009 by Steven DiMartino
9:13 AM
An area of low pressure, associated with the first of three disturbances that will move through the eastern United States is slightly stronger than forecasted this morning. Moderate snowfall is being reported over west-central Pennsylvania this morning with some minor accumulations. As the disturbance moves east, precipitation will enter the forecast area today with [...]
February 4th, 2009 by Steven DiMartino
6:31 AM
I would call yesterday’s storm, the storm that over performed. I was very surprised to see that Philadelphia received up to 8 inches of snow according to the latest snowfall update, which is double the amount that anyone has seen so far this year from other storms. Meanwhile, in Monmouth County around 6 inches [...]