>WEATHER WARNING FOR US EAST COAST

Written by on March 12, 2010 in Rest of Europe with 0 Comments

> Graphic Source: AccuWeather.com

Just before I post on the upcoming Atlantic Hurricane Season, I thought I would mention the prospect of a major Nor’easter is set to impact the Eastern Seaboard this weekend.

Two low pressure centers, one over the N. Plains and the other over Georgia is producing some rain. The low over the Plains is further adding to the flooding situation as Minneapolis has went from 12″ to a trace within 11 days according to WeatherNation’s Paul Douglas, this fairly fast snowmelt is thanks to warm temps and rain and this is basically the story throughout that region of the country as the surge of warming air grows ever stronger.

As for the large band of rainfall stretching from Atlanta and up towards the Mid-Atlantic and then hooking into the Great Lakes is associated with a moisture plume that’s being forcing up and ahead of a frontal boundary where the air is warm and moist. It certainly doesn’t take a qualified meteorologist to work out that theres a front there.

OK, This indeed is nothing compared to what will happen tomorrow and into Sunday as the low pressure center that will blast the East Coast with a uniform 1-3 inch rains and strong gale force winds with some exposed or higher elevated areas experiencing storm to hurricane force winds will impact a region that is already experiencing flooding from snowmelt.

This storm will be a major Nor’easter and with warmer air in place it’s rain, not snow this time. This should be a concern to those in PA, Maryland, DC, Virginia, West Virginia, New Jersey, New York City and southern NY state, Connecticut for a soaking, drenching rain that will be driven by gale-force winds in many areas. Mt Pocono, the Jersey Shore, Lonh Island shore and up to Maine will experience beach erosion and a tidal surge is likely as tropical storm and hurricane force wind husts look likely. Flooding and wind damage will also be a big factor with this storm system as it forms off the coast of the Mid-Atlantic and bombs out, developing and strong windfield that will impact places as far west as Ohio where flooding may be the biggest factor with the combo of snowmelt and 1-3 inch rains… Winds may not be as strong as they will be across central PA with the strongest being the nearer to the coast you are or the higher and more exposed you are.

Across central PA, and the tri-state area may see locally 6″ of rain… and anywhere from Cape May, NJ to Cape Cod, MA may see some locations along that stretch of coast witnessed a surge of 2-5 feet, similar to a storm surge driven in by a hurricane or tropical storm. Breakers of 10-20 feet by also drive onshore…

Mt Washington may see 120-150 mph winds out of this and heavy snow may be a problem there not rains…

Stay tuned as I shall talk more about this storm over the weekend.

Thanks for reading.
-Mark

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