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Short Range Public Discussion
(Caution: Version displayed is not the latest version. - Issued 0800Z Dec 03, 2022)
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Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 300 AM EST Sat Dec 03 2022 Valid 12Z Sat Dec 03 2022 - 12Z Mon Dec 05 2022 ...Much colder today across the northern tier into the northern Plains behind a sharp cold front with a period of snow across the Great Lakes... ...A slow-moving storm system will bring another round of heavy snow along the Sierra Nevada followed by mountain snow spreading across the Intermountain West... ...Mild and wet weather across the eastern U.S. today will be followed by blustery and cold conditions on Sunday... A sharp cold front marking the leading edge of an arctic air mass will surge into the Plains today, bringing rapidly falling temperatures and blustery west to northwesterly winds across the Great Lakes, Midwest, and into the Ohio Valley this morning. The influx of cold air will change the rain to a period of snow across the Great Lakes before dry air arriving tonight with clearing skies. In the mean time, a broad southerly flow ahead of the sharp front is bringing much milder air up the eastern U.S. today with rain expanding east into much of the Mid-Atlantic and New England. However, cold and dry weather will return across the eastern half of the country for the rest of the weekend as a cold high pressure system builds into the region behind the sharp front. Meanwhile, light to moderate lake effect snow is expected to develop over portions of the Upper Peninsula of Michigan over the next couple of days as winds out of the northwest advect over the relatively warm Lake Superior waters. Off the West Coast, a slow-moving low pressure system will direct Pacific moisture toward the western U.S. over the next couple of days. Coastal rain and mountain snow over the Pacific Northwest will gradually taper off later today as heavy precipitation begins to push into California. The precipitation will be in the form of heavy snow along the Sierra Nevada where 2-3 feet of snow is likely by Sunday night. Meanwhile, some parts of the northern and central-southern California coast may receive between 1-3 inches of rain as the system taps in subtropical moisture from the Pacific. The moisture is forecast to penetrate further inland on Sunday with widespread mountain snow across the Intermountain region, reaching into the northern Rockies Sunday night into Monday morning. Farther south, a plume of moisture is forecast to bring an axis of enhanced precipitation across the southern Rockies and some lighter amounts of rain into the southern Plains through this weekend near a developing wave of low pressure. Kong Graphics available at