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Short Range Public Discussion
(Caution: Version displayed is not the latest version. - Issued 2004Z Nov 30, 2022)
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Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 304 PM EST Wed Nov 30 2022 Valid 00Z Thu Dec 01 2022 - 00Z Sat Dec 03 2022 ...Heavy coastal rain and mountain snow across West... ...Rain and lake effect snow for parts of the Northeast tonight... A departing low pressure system will bring strong winds and rain showers to the coastal Northeast while cold air advection on the backside will generate light blowing snow showers over interior portions of New England tonight. Northwesterly winds over the Lower Great Lakes will lead to the development of light to moderate snow bands downwind of the Lakes through tomorrow afternoon. Between 4-8 inches of snow are forecast to accumulate with locally higher amounts once the precipitation winds down tomorrow. High Wind Warnings and Wind advisories are in effect for much of the Northeast and portions of the Allegheny Mountains. Another area of low pressure, beneath a positively tilted upper trough, will cut across the West over the next couple of days. Moderate to heavy rain will focus along a cold front gliding down the West Coast through Thursday night. Scattered thunderstorms are possible along parts of the Pacific Northwest Coast tonight. Meanwhile, heavy snow will spread from the Cascades and Northern Rockies tonight into the Sierra tomorrow and the Central Rockies by Friday. Between 1-2 feet of additional snow is likely for the Cascades, 2-3 feet for the Sierra, 1-2 feet for the Northern Rockies and 6-12 inches for the Colorado Rockies by Friday evening. This system will expand out over the Plains on Friday, bringing rain showers to the Upper Great Lakes and Midwest as well as snow and gusty winds to the Upper Midwest into the evening. Another low pressure system arrives over the Pacific Northwest on Friday, kicking off a weekend of unsettled weather for the West Coast. Temperatures will drop across the East as the cold front pushes off into the Atlantic tonight, but then rebound in time for the weekend. Temperatures will warm to be 10-20 degrees above average over the central third of the country on Thursday and Friday out ahead of the West Coast system. Frigid arctic air will begin to descend upon the Northern Plains by Friday. Kebede Graphics available at