Thursday, October 15, 2009

Cool to cold for many - Rain a plenty - some snow!

Again, this winter like pattern is going to be interesting and bring some mountain snows above 2000 feet as well as even a rain/snow mixed close to the DC Metro suburbs.

Storm Highlights:

Cold Air Damming:
We have a cold air damming situation which is making the Piedmont very cool (40s) while the coastal plains today could see highs near 60 in SE Va and NC

Snow threats:
The Nor'easter that is forming off the Carolina coast will wrap some colder air in it over time and so higher elevations of Virginia (will say north of Harrisonburg) will see a chance of rain and snow tonight and tomorrow night.

Another system appears to get its act together Saturday and this could have even colder air which cold mean snow may accumulate higher elevations and some accumulations could occur. This should be monitored
As colder air gets more entrained into the system, snow and rain mixed could start to spread eastward and even affect the Piedmont areas up to areas west of I-95 from Fredericksburg northward to the DC and Baltimore suburbs Saturday Night.

Copious rain:
Rain from these storm systems could drop 1 to 3 inches of rain with highest amounts along the coastal plains.

Winds:
Winds along the coast will be at gale force and even Storm force so Coastal storm warnings and gale warnings are posted. Areas from the Delmarva and north could see coastal flooding as well. All areas should see winds increase as the coastal storm gets wrapped up.

Pennsylvania and Northwards have many Winter storm watches and warnings are now flying due to heavy wet snows. This is especially true of areas above 1500 to 2000 feet. With trees having many leaves left on them this could be a serious situation.Forecasts are calling for 4 to as much as 12 inches in higher elevations and mainly on trees.

Longer term:
60s and 70s will make a come back next week with sunnier skies.

This will be a wild weather event the next 60 hours!

All for now!

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