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Frosty Weather Will Chill Northeast This Morning

6 AM EDT, October 13, 2012

By WeatherBug Meteorologist, John Bateman

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Cold air bleeding south from Canada will bring a frosty weekend start to the Mid-Atlantic and Northeast. Temperatures will be cold enough to endanger the growing season across large stretches of the Interstate 81 and 95 corridors.

Clear skies and high pressure will bring morning lows of below freezing for several hours, with upper 20s to lower 30s from the western suburbs of Washington and Baltimore, all the way to the southeast coast of Maine. This includes the Mohawk and Hudson valleys along with the Connecticut River Valley.

Widespread Freeze Warnings are in place from southern Pennsylvania to southeast Maine, including the western suburbs of Philadelphia and Newark, N.J., Syracuse, N.Y., Hartford, Conn., Providence, R.I., and Boston.

A Freeze Watch has been posted for the immediate western suburbs of Baltimore and Washington to the Interstate 81 corridor in northern Maryland. Parts of southern New Jersey, including the towns of Jackson and Hammonton, are also included under this watch.

Don`t forget to cover weather-sensitive plants or bring them inside to avoid exposure to the cold. Also, keep pets inside overnight during the cold weather. For more advice on protecting plants in the cold weather, click here.

The first frost will be right on cue in the Northeast. Boston and Syracuse, N.Y., typically experience their first frost within the first week of October while Hartford, Conn., is a bit later. First frost is around October 23rd.

Although temperatures will inch above the freezing mark quickly after sunrise today, highs will be much cooler than average. Washington and Baltimore will rebound to around 60 degrees, with the average being 70 degrees for mid-October. Philadelphia will reach the upper 50s while farther north Boston, Providence, R.I., and Hartford, Conn., will only reach into the lower and middle 50s.

High pressure will quickly move offshore as a Plains weather maker quickly moves into the Northeast on Saturday night. A warm front will bring clouds and showers, keeping low temperatures much milder with 40s from Washington to Boston.

Be sure to keep WeatherBug active to receive the latest weather and frost/freeze advisories for your neighborhood and get the latest updates anywhere on Twitter.

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