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Weather Underground Forecast for Friday, March 27, 2015

A strong low pressure system and associated cold front move offshore from the East Coast on Friday, as high pressure with cool and dry conditions move in behind it. A strong cold front that produced precipitation from the Northeast through the Gulf states will continue advancing eastward and offshore on Friday. This will allow for a few more rain showers to persist from the mid-Atlantic states through the Gulf states, with heaviest rainfall anticipated over parts of Florida and into the Carolinas. Rainfall totals will range from 0.5 to 1.0 inches in these areas, with isolated areas seeing over 1 inch possible. Precipitation from this front will move offshore and into the Atlantic Ocean by midday, as broad ridge of high pressure builds in behind this system. This ridge will bring cold air in from the North, allowing for high temperatures to range from 10 to 20 degrees below normal for the Eastern Valleys. A freeze watch has been issued for parts of the Tennessee Valley as early morning low temperatures are likely to drop below freezing early Friday and early Saturday mornings.

Meanwhile in the North, a small trough of low pressure that brought a few scattered rain and snow showers to the Dakotas on Thursday will continue making its way eastward over the Great Lakes and into the Northeast. This system is expected to produce widespread snow showers for the Ohio River Valley and into the Northeast on Friday.

Out West, another trough of low pressure dips into the Pacific Northwest from western Canada late on Friday, increasing the chance of precipitation for Washington and northwestern Oregon. Chances of showers will increase Friday night into early Saturday for the region.

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