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Short Range Public Discussion
(Caution: Version displayed is not the latest version. - Issued 2000Z Dec 06, 2023)
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Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 300 PM EST Wed Dec 06 2023 Valid 00Z Thu Dec 07 2023 - 00Z Sat Dec 09 2023 ...Excessive rainfall and flooding potential continues across the Pacific Northwest into Thursday morning... ...Moderate upslope snow forecast across the central and southern Appalachians through Wednesday night... ...Well above average and potentially record-breaking warmth forecast across the central United States over the next few days... Several inches of rain has fallen over multiple days across the Pacific Northwest which has resulted in scattered areas of flooding. This water logged area will see some relief as precipitation weakens and reduces coverage by the week's end. WPC is maintaining a Marginal Risk for excessive rainfall for the Pacific Northwest/northern California Coast and northern Idaho/northwest Washington through Thursday morning. Additionally, numerous flood Watches, Warnings, and Advisories remain in effect. With colder air filtrating into the region snow levels are expected to drop to around 4000 feet which will reduce to negate snowmelt/runoff potential from areas of higher terrain as the next wave of moderate precipitation enters the region. With cold air surging into the eastern U.S. with a developing low pressure system in the western Atlantic snow showers and light accumulations are possible for the Appalachians, Great Lakes, and Northeast through Thursday. Some of the greatest accumulations may be observed along the higher terrain of the central and southern Appalachians through the overnight hours. Winter Weather Advisories extend from the mountainous terrain of western North Carolina to the Allegheny Front of West Virginia and western Maryland for 3 to 6 inches of snow. Meanwhile a vast portion of the central U.S. will be warmer and drier through Friday before a low pressure system and associated cold front advances through the Great Plains. Daily maximums will climb into the 60s across South Dakota with 70s across Kansas. These values are around 20 to 30 degrees above average when compared to early December climatology. The warmest day will be Thursday, where several daily high temperature records could be broken throughout the Great Plains and Upper Midwest. Meanwhile, as the aforementioned cold front swings through the Rockies on Thursday and approaches the Plains on Friday, unsettled weather and gusty winds are set to return. Moderate to locally heavy snow is possible across the mountainous terrain of the Rockies, as well as into the central High Plains on Friday. Strong westerly and downsloping winds may also prove to be hazardous across the northern and central High Plains for the end of the week. Campbell Graphics available at