Tag Archive for 'frequent lightning'
August 23rd, 2009 by Steven DiMartino
6:26 PM
A cluster of strong to severe thunderstorms have developed over the southern Hudson Valley this evening as the surface cold front finally exits the forecast area. A severe thunderstorm warning has been issued for Westchester County of New York and Fairfield County of Connecticut through 6:45 PM. These thunderstorms are capable of penny size [...]
August 22nd, 2009 by Steven DiMartino
5:05 AM
A strong disturbance along and ahead of a cold front over the Ohio Valley produced a cluster of strong to severe thunderstorms which impacted much of the forecast area. These thunderstorms were capable of wind gusts over 55 mph, heavy downpours, and frequent lightning.
The following are official storm reports from the National weather Service:
1730
UNK
4 [...]
August 18th, 2009 by Steven DiMartino
9:40 PM
A cluster of strong to severe thunderstorms is moving through the Philadelphia metro and much of central and southern New Jersey this evening. These thunderstorms are associated with a strong upper level disturbance and will not usher in any air mass change for tomorrow. These thunderstorms will be capable of wind gusts over 55 [...]
August 11th, 2009 by Steven DiMartino
7:45 AM
The cold front has stalled over the forecast area this morning and will continue to linger over the region through this afternoon. The air mass over the forecast area continues to be very warm and humid. Dew points already range from the mid 60’s to lower 70’s over the forecast area and will continue [...]
August 11th, 2009 by Steven DiMartino
5:35 AM
A mid level disturbance along a warm front produced strong to severe thunderstorms over the Hudson Valley in the afternoon and evening hours of Monday, August 10 2009. These thunderstorms were enhanced by a strong mid level jet streak at 850 to 950 MB between 20 and 40 KT. This jet streak enhanced the [...]
August 10th, 2009 by Steven DiMartino
7:15 AM
On Sunday, August 9 2009 a warm front slowly pushed through the forecast area with widely scattered showers initially. A strong mid level and upper level disturbance moved along the warm front from the Great Lakes into eastern Pennsylvania. This strong disturbance, enhanced by a strong jet streak at 500 and 850 MB, produced [...]
August 9th, 2009 by Steven DiMartino
8:32 AM
A warm front is slowly moving north and northeast this morning with periods of moderate to heavy showers. These showers will continue to move through the forecast area through this afternoon with a few embedded thunderstorms as well. As the warm front lifts north, humidity will increase significantly from the lower 60’s into the [...]
August 6th, 2009 by Steven DiMartino
5:00 AM
On Wednesday, August 5 2009; a cold front slowly moved through the forecast area from the northwest towards the coast. For the most part, the showers and thunderstorms were widely scattered and weak. However a few thunderstorms did reach severe levels for a brief period of time.
The convection with this cold front was rather [...]
August 3rd, 2009 by Steven DiMartino
9:16 PM
Model guidance this afternoon and evening suggest that the pattern is about to take a shift towards warmer and drier conditions, maybe. Let’s take a look at the water vapor satellite image tonight.
First lets discuss the next 36 hours, as they will be the warmest period of weather experienced this summer, so far at [...]
August 2nd, 2009 by Steven DiMartino
5:15 AM
After a very pleasant break to the stormy weather conditions on Saturday, the forecast area will be under the gun with another round of showers and strong to severe thunderstorms through this evening. An upper level low and long wave trough over the central Great Lakes will once again drift to the east towards [...]