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Tag Archive for 'normal'

What has caused the heavy rainfall this month?

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 [...]

Heavy rain and severe weather a significant threat

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 [...]

A break in the wet weather today, but more rain on the way

7:15 AM
As low pressure exits the forecast area this morning, a brief break in the clouds and rainfall can be expected through the day.  In case anyone forgot, that big bright ball in the sky is called the sun, and no we are not in Seatlle.  Weak high pressure over the eastern Great Lakes will [...]

Another rainy day for the region

7:39 AM
A clash of air masses is unfolding right over the forecast area as the marine air mass that has been over the forecast area the past several days slowly is eroded from the region and off the coast.  The latest surface map best describes the current situation.  High pressure remains off the New England [...]

Drier weather returns to the forecast area

7:58 AM
The rainy pattern that much of the forecast area has experienced this June is taking a short break, as high pressure positions itself over Maine this morning.  The position of the high pressure system will still force a marine air mass in place over the region, which is supporting the low clouds this morning. [...]

Threat for showers continues through the week

7:18 AM
Another disturbance is dropping south through the Hudson Valley, Connecticut, and Long Island Sound this morning with a round of heavy rain this morning.  This disturbance will continue to drop south and east and will exit the forecast area over the next 2 to 3 hours, impacting much of Connecticut and Long Island rush hour [...]

Maritime High Pressure Keeps Clouds Over Region

8:36 AM
Through this up coming week, the weather conditions will mirror more of late September rather than mid June as high pressure positions itself over Maine and several waves of low pressure passes to the south.  Conditions like yesterday’s heavy rain event may develop for any particular afternoon where some clearing develops and mesoscale boundaries [...]

Tropical Weather Update for Thursday, June 11 2009

7:55 AM
While the upper low over the central Tropical Atlantic is no more, a strong westerly shear dominates much of the region with no development expected over the next three days.  A trough over the Caribbean Sea is producing strong southwesterly shear from Cuba on through the Leeward Islands.  Meanwhile, disturbances coming off the African [...]

Another cool, raw day for this summer

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 [...]

Tropical Weather Update for Wednesday June 10, 2009

7:30 AM
The upper low that has inhibited the development of any tropical disturbance over the Atlantic continues to weaken and move towards Europe this morning.  However, westerly shear continues to influence much of the Tropical Atlantic and will continue to do so over the next several days.  Another trough over the Caribbean this morning will [...]



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