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Tag Archive for 'southern pennsylvania'

Rain, snow, and ice on the way

8:30 AM
Rain, sleet, and even some snow is racing northward and eastward  from  the southern Mid Atlantic and Ohio Valley.  A coastal low is slowly forming off the North Carolina coast while pressure is quickly falling throughout the Tennessee Valley and Mid Atlantic.
My concern this morning is the cold air that is locked in [...]

Stationary front to keep dreary conditions through Friday

7:13 AM
While much of eastern Pennsylvania was impacted by strong to severe thunderstorms yesterday, much of the coastal plain was under the influence of a cool marine air mass, which produced generally overcast skies and showery conditions.  The strong to severe thunderstorms over Pennsylvania produce large hail, frequent light, and flash flooding.  I do not [...]

Boat and beach report for Wednesday, June 10 2009

6:36 AM
A stationary front over southern New Jersey and south of Long Island  will channel several waves of weak low pressure, which will produce overcast skies, foggy conditions, and periods of showers and thunderstorms.  The first wave of low pressure will move through the region this afternoon with scattered showers.  On Thursday, a more developed [...]

Severe weather potentially explosive tomorrow afternoon

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 [...]

Periods of heavy rain through Friday

1:59 PM
This afternoon, the disturbance over the southern Mississippi Valley is pushing towards the Tennessee Valley.  As a result, a surface low pressure system is quickly organizing over the Southeast.  As you can see with the radar, precipitation is quickly developing over southern Pennsylvania through the Ohio Valley while there is clearly a low level [...]

Showers on the move as a rainy day sets up for tomorrow

8:30 PM
An area of showers over western Pennsylvania and throughout much of the Tennessee Valley.  The showers are supported by weak isentropic lifting associated with a warm front moving towards the Mid Atlantic.  
Clouds will continue to increase over the forecast area, however the majority of the rainfall will hold off until later tomorrow morning [...]

Windy Day As Temperatures Return To Normal

6:43 AM
The initial cold front with the heavier rain has moved well east of the forecast area and a secondary cold front is currently moving through eastern Pennsylvania.  The intensifying low pressure system over Lake Ontario will support a strong pressure gradient over much of the Northeast and northern Mid Atlantic, which will lead to [...]

Snow Continues To Expand

10:22 PM
Snow is now expanding from southern Pennsylvania and southern New Jersey into central New Jersey and through the Philadelphia metro.  
At this point, the forecast is pretty much on track with no major deviations either way towards warm nor cold.  At this point, I’m going to get some rest and will start updating once [...]

Snow On The Way

6:06 PM
Snow is starting to enter southeastern Pennsylvania in the past hour.  Light snow is now falling over southern Pennsylvania, however heavier precipitation is on the way over Ohio and West Virginia.  Strong lifting is also beginning to intensify precipitation over Virginia, Maryland, and Delaware.  
Through the evening, snow will spread throughout the forecast area [...]

Watching The Boundary Layer

8:24 AM
All though the morning I’ve been looking over forecast data from model guidance like the MM5, ARW, NNM, and other mesoscale guidance to get a better read on the atmosphere below 850 MB.
I pretty much have this storm nailed down with the exception of the time period from 5 AM to 11 AM Wednesday. [...]



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