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Heavy rain and severe weather a significant threat

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 [...]

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Drier weather returns to the forecast area

June 16th, 2009 by Steven DiMartino

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. [...]

Tags: air, air mass, Albany, Allentown, area, Atlantic, Atlantic City, atlantic ocean, atmosphere, axis, Belmar, Bridgeport, canadian maritimes, Citi Field, clouds, cloudy skies, coast, coastal waters, cold, confidence, Connecticut, dense fog, discussion, Disturbance, east, easterly wind, elevation, elevations, england, enhancement, evening hours, evenings, fog, forecast, forecast area, forecaster, forecasters, Freehold, front, Great Lakes, guidance, hail, Hartford, heavy rain, high, Hudson Valley, humidity, Islip, Jets, level moisture, lifting, lightning, Long Island, Long Island Sound, low, low clouds, lows, Maine, Mets, mid, models, moisture, New Jersey, New Jersey coast, New York, New York City, Newark, normal, normals, north, northe, Northeast, northern, Pennsylvania, periods, Philadelphia, Phillies, plains, Poughkeepsie, precipitation, precipitation types, precipitations, Rainfall, Reading, respects, Ridge, Rockies, Scranton, short break, showers, stationary front, suggestion, sun, surfaces, Sussex, systems, temperature, temperatures, thunderstorm, thunderstorms, tides, tornado, Trough, troughs, valleys, warm, weather, wednesday morning, White Plains, Wild Wood, wills, wind flow, wind speed, Yankee Stadium, Yankees. Technical Discussions Closed

Strong thunderstorms developing throughout the region

June 13th, 2009 by Steven DiMartino

12:35 PM
As discussed this morning, as the sun broke through and destabilize the atmosphere, mesoscale boundaries have developed. These boundaries have produced slow moving and strong thunderstorms. These thunderstorms are producing producing very heavy rainfall over western Burlington County and Morris County in New Jersey and throughout eastern Pennsylvania. These thunderstorms are capable of producing [...]

Tags: air, air mass, Albany, Allentown, Atlantic City, atlantic ocean, atmosphere, baseball game, Belmar, boston baseball, boundaries, Bridgeport, Burlington, Burlington County, Citi Field, coast, coastal waters, Connecticut, county, destabilization, discussion, doppler, eastern Pennsylvania, elevation, elevations, estimations, Freehold, frequent lightning, gusts, hail, Hartford, heavy rain, interaction, Islip, lightning, Long Island, Long Island Sound, Maine, mesoscale, Mets, morris county, New Jersey, New Jersey coast, New York, New York City, Newark, northern, observation, observations, Pennsylvania, Philadelphia, Phillies, Poughkeepsie, Rainfall, rainfall rates, Reading, Scranton, stable atmosphere, Storm, storms, strong wind, sun, Sussex, thunderstorm, thunderstorms, tides, tornado, White Plains, Wild Wood, wills, wind gusts, Yankee Stadium, Yankees, Yankees baseball. Technical Discussions Closed

Low level jet strengthening

June 10th, 2009 by Steven DiMartino

9:15 PM
I discussed earlier this evening that the majority of the showers and thunderstorms approaching the forecast area was from a mid level disturbance moving along the stationary front. However, over the past few hours another important feature is starting to take hold over the Mid Atlantic back through the eastern Ohio Valley. That feature [...]

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Evening thoughts- severe weather overview

June 9th, 2009 by Steven DiMartino

8:46 PM
This morning I was preparing for an active afternoon of severe weather for the Delaware River Valley and eastern Pennsylvania with the potential for strong thunderstorms for the rest of the region. While thunderstorms did organize and push towards severe levels over much of eastern Pennsylvania, the thunderstorms weakened as they moved towards New [...]

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Strong thunderstorms on the move, more to come later

June 9th, 2009 by Steven DiMartino

7:18 AM
There’s a lot to discuss this morning, so lets dive right into it!
An impressive line of thunderstorms has developed early this morning in response to the strong low level jet stream at 950 and 850 MB this morning. The warm front continues to lift north and eastward, but is having some difficulty doing so [...]

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Severe weather potentially explosive tomorrow afternoon

June 8th, 2009 by Steven DiMartino

9:38 PM
A preview of the a potentially very active afternoon was seen this afternoon over much of southern Monmouth and Ocean counties of New Jersey this afternoon. A weak disturbance, a remnant from the MCS that impacted much of the Mid West early this morning, sparked off a cluster of showers and thunderstorms. These thunderstorms [...]

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Great conditions to start the week

June 1st, 2009 by Steven DiMartino

6:42 AM
Through this week, the pattern will exhibit all the possible outcomes that the forecast area will see through this week all of which will be influenced by the position of the trough over the Great Lakes and the ridge over the western Atlantic through this period. Already this morning, we can see the evolution [...]

Tags: air, Albany, Allentown, area, Atlantic, Atlantic City, atlantic ocean, Belmar, Bridgeport, canadian maritimes, Citi Field, clear skies, coast, coastal waters, cold, cold front, cold fronts, Connecticut, continuation, convection, convective, discussion, downpours, east, East Coast, evenings, evolution, few days, forecast, forecast area, forecaster, forecasters, Freehold, front, Great Lakes, gusts, hail, Hartford, heavy rain, high, humidity, Islip, lifting, light winds, lightning, Long Island, Long Island Sound, low, lows, Maine, Mets, mid, moisture, New Jersey, New Jersey coast, New York, New York City, Newark, normal, normals, Northeast, Ohio, opinions, Pennsylvania, periods, Philadelphia, Phillies, Poughkeepsie, precipitation, precipitations, pva, Rainfall, Reading, Ridge, satellite, satellite images, Scranton, shape, showers, significant impact, slides, south, Southeast, southwesterly flow, southwesterly wind, surfaces, Sussex, systems, temperature, temperatures, thunderstorm, thunderstorms, tides, tornado, Trough, troughs, upper level winds, valleys, warm, water vapor satellite, weather, weeke, White Plains, Wild Wood, wills, Yankee Stadium, Yankees. Technical Discussions Closed

Severe Thunderstorm Watch for Philadelphia Metro

March 29th, 2009 by Steven DiMartino

6:18 PM
The following is from the National Weather Service at Mount Holly:
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
NORTHEASTERN CECIL COUNTY IN NORTHEAST MARYLAND…
THIS INCLUDES THE CITY OF ELKTON…
NORTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE…
THIS INCLUDES THE CITIES OF…WILMINGTON…NEWARK…
[...]

Tags: Albany, Allentown, area, Atlantic City, Belmar, Bridgeport, Burlington, Camden, Chester, clouds, Connecticut, county, Delaware, discussion, doppler, Freehold, Gloucester, gusts, Hartford, holly, Islip, lightning, Long Island, Maryland, mesoscale, metros, Montgomery, New Jersey, New York, New York City, Newark, Northeast, northern, Pennsylvania, Philadelphia, Poughkeepsie, radar, Reading, Salem, Scranton, Southeast, spc, Storm, storms, Sussex, thunderstorm, thunderstorms, tornado, tornadoes, watches, weather, west, White Plains, Wild Wood, wills. Technical Discussions Closed

Severe weather threat growing for southern New Jersey

March 28th, 2009 by Steven DiMartino

4:15 PM
The dynamics appear to be coming together for the potential for strong to severe thunderstorms over southeastern Pennsylvania and southern New Jersey.
As discussed this morning, a warm front will move through the forecast area tonight to producing a steady, heavy rain over the entire region. Currently, an area of heavy rainfall associated with [...]

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