Tag Archive for 'valleys'
March 15th, 2010 by Steven DiMartino
7:30 AM
Another day and more rain. That’s the best way to describe this dreary Monday morning. Once again, the upper low that has plagued the Philadelphia and New York City metropolitan area since Thursday continues to drive Atlantic moisture into the northern Mid Atlantic.
A 996 MB surface low roughly 200 miles southeast of Long Island [...]
November 30th, 2009 by Steven DiMartino
8:03 AM
The data this morning for all periods of this forecast is pretty interesting as a cold front will be moving through today, a significant rain storm will move through later in the week, and more uncertainty on how this pattern will unfold as the month unfolds. Let’s deal with the here and now [...]
October 19th, 2009 by Steven DiMartino
6:30 AM
After a wet and cool weekend, the weather will turn to a much brighter and warmer outlook as high pressure takes hold from the Tennessee Valley.
This morning, yet another low pressure is developing over the coastal waters of the Mid Atlantic. However, this time the upper level trough axis is positioned off the coast [...]
September 29th, 2009 by Steven DiMartino
5:15 AM
A very interesting pattern will unfold over the next several days as a series of impressive upper level lows impact much of the nation.
The majority of the precipitation associated with the upper low over northern and central New York this afternoon has already exited the region in the form of a strong cold front [...]
September 22nd, 2009 by Steven DiMartino
5:15 AM
Moisture continues to stream from the southwest over the Ohio and Tennessee Valleys into the Philadelphia and New York City metropolitan areas. this morning.
High pressure off the New England coast this morning will continue to keep the northern Mid Atlantic dry, however clouds will continue to increase.
There are several interesting features on the 500 [...]
August 4th, 2009 by Steven DiMartino
5:38 PM
This afternoon, a strong trough is slowly progressing to the east through the Ohio and Tennessee Valleys. The cold front associated with this trough is producing strong to severe thunderstorms over much of the Ohio and Tennessee Valley and is having some minor lifting influence over the forecast area as well. A few isolated [...]
June 22nd, 2009 by Steven DiMartino
7:15 Am
Summer-like conditions will return to the forecast area and will do so in a short period of time. That means that humid air and temperatures in the 80’s and possibly 90’s will return to the forecast area. When the hot summer conditions return, I’m willing to bet that the conditions will feel hotter and [...]
June 21st, 2009 by Steven DiMartino
9:52 AM
June has seen some very impressive rainfall amounts with many locations well over an inch above normal. Even some locations double the amount of normal rainfall. While a continuous onslaught of showers and thunderstorms have impacted much of the Mid Atlantic, and specifically the New York City and Philadelphia metropolitan areas, other locations have [...]
June 21st, 2009 by Steven DiMartino
10:00 AM
The visible satellite picture this morning shows us that once again, yet another weekend has been spoiled by wet, soggy conditions. However, I do have some good news for this afternoon. Note that over the Hudson Valley and over eastern Pennsylvania that the clouds have started to break up and some clouds are lifting [...]
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 [...]