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Storm Summary Number 4 for Northern Plains and Upper Midwest Heavy Snow and High Winds NWS Weather Prediction Center College Park MD 900 PM CST Fri Dec 20 2024 ...Clipper system becomes absorbed by strengthening low pressure offshore tonight into Saturday... snow lingers downwind of the Great Lakes and across the higher elevations of the central and northern Appalachians... Winter Weather Advisories are in effect for portions of Michigan, northeastern Ohio, northwestern Pennsylvania, and western New York, in addition to the higher terrain of West Virginia, Virginia, Kentucky, Tennessee, and North Carolina. For a detailed graphical depiction of the latest watches, warnings and advisories, please see www.weather.gov At 800 PM CST...What is left of the Alberta Clipper low pressure system was tracking across the central Appalachians. The weakening low pressure center was located over southwestern Virginia with a minimum central pressure of 1013 mb (29.91 in Hg). The remnants of the Alberta Clipper were becoming absorbed by a strengthening low pressure system located over the Atlantic waters off the coast of New England. National Weather Service Doppler Radar showed numerous snow showers and more widespread areas of snow continuing across the eastern Great Lakes, Northeast, Mid-Atlantic, and central and northern Appalachians. Snowfall rates were light to moderate for most areas with some locally heavier rates noted downwind of the eastern Great Lakes, and along coastal areas of the Mid-Atlantic and New England. ...Selected preliminary Storm Total Snowfall in inches from 600 AM CST Wed Dec 18 through 800 PM CST Fri Dec 20... ...ILLINOIS... HARVARD 4.4 NNE 5.0 LAKE VILLA 1.1 SSW 5.0 BULL VALLEY 2 WNW 4.8 LINDENHURST 1 NW 4.0 LONG LAKE 0.4 S 4.0 NAPERVILLE 3.9 PALATINE 1 NW 3.0 WOODRIDGE 2.5 ADDISON 2 SW 2.4 OHARE AIRPORT 2.1 ROCKFORD AIRPORT 2.1 GALENA 2.0 WINNESHIEK 3 SW 2.0 YORKVILLE 1 SSE 2.0 NWS CHICAGO-ROMEOVILLE 1.7 MARENGO 1 NNE 1.2 ...INDIANA... AKRON 3.0 DONALDSON 2 ESE 3.0 ...IOWA... DECORAH 7.9 ENE 4.2 RANDALIA 3 ENE 3.8 ELKADER 6.8 WSW 3.5 MONONA 3.5 NEW HAMPTON 0.4 SW 3.2 HARPERS FERRY 3.0 FARLEY 2.5 POSTVILLE 5.5 NE 2.5 SAINT ANSGAR 2.4 FAYETTE 3 N 2.0 MASON CITY 2.0 ...MICHIGAN... BEECHWOOD 2 NNW 7.1 JAMESTOWN 6.5 JENISON 6.5 GRANDVILLE 1 SSW 6.0 KENTWOOD 3 ENE 5.9 GRAND VALLEY 1 NE 5.6 EAST GRAND RAPIDS 1 SSW 5.5 WALKER 3 ENE 5.5 EDGEMONT PARK 2 NNE 5.3 WAVERLY 1 N 5.3 BRUNSWICK 1 NNE 5.0 CALEDONIA 5.0 DUTTON 1 SSW 5.0 MUSKEGON 5.0 ZEELAND 3 WNW 5.0 NORTON SHORES 2 NE 4.7 GRAND LEDGE 3 ESE 4.5 LOWELL 1 NW 4.5 ...MINNESOTA... ELKO NEW MARKET 1.2 W 8.5 MINNEISKA 4 SE 8.1 PRIOR LAKE 8.1 S 8.1 HOLT 8.0 LE CENTER 5.8 NNW 8.0 ROCHESTER 3 NE 8.0 ORONOCO 1 SW 7.7 MONTGOMERY 1 N 7.3 DENNISON 2 NNE 7.2 WINTHROP 7.2 NEW PRAGUE 7.0 BIRD ISLAND 6.8 BLAKELY 3 W 6.5 KELLOGG 3 SE 6.5 MINNEOTA 6.5 ST PETER 6.5 NORTHFIELD 1 E 6.4 ...NEW YORK... MARATHON 4.6 ADDISON 4 SW 4.0 JASPER 3.8 BERKSHIRE 3.0 COVERT 2.5 ORCHARD PARK 2.5 RICHMONDVILLE 2.0 GLENS FALLS 1.9 ROCHESTER AIRPORT 1.8 ...NORTH CAROLINA... BANNER ELK 2 NE 1.5 ...NORTH DAKOTA... CAVALIER 12 NW 11.0 WALHALLA 10.0 PEMBINA 1 NE 9.5 LAKOTA 9.0 CATHAY 6.5 N 8.0 TOLLEY 6.4 N 8.0 CANDO 2 NNW 7.5 MAYVILLE 7.5 EMRICK 6 NE 7.0 FINLEY 7.0 LANGDON 7.0 LEAL 2 E 7.0 FOREST RIVER 0.2 ESE 6.7 LARIMORE 6.2 DRAYTON 6.0 FORT RANSOM 2 N 6.0 ...OHIO... HARPERSFIELD 2 S 3.0 ...PENNSYLVANIA... MONTANDON 3.5 LEWISBURG 1.5 W 2.5 NORTHUMBERLAND 2.5 BLOOMSBURG 2.0 ELIZABETHTOWN 2.0 ...SOUTH DAKOTA... WHITE 0.4 WNW 4.0 WATERTOWN 2.3 E 3.5 BRUCE 4.1 NE 3.0 DE SMET 3.0 BRITTON 2.1 HECLA 7 WNW 2.0 MILBANK 2.0 ...WEST VIRGINIA... SHADY SPRING 7 S 1.5 DANESE 1.0 SNOWSHOE 1.0 ...WISCONSIN... FREDONIA 1 SSE 11.0 WEST BEND 2 SE 10.5 CEDAR GROVE 10.0 PLYMOUTH 10.0 HARTFORD 2 E 9.8 MISHICOT 4 NNW 9.5 HORICON 9.1 SLINGER 9.1 JACKSON 9.0 PORT WASHINGTON 8.9 THERESA 8.2 ADAMS 8.0 ARCADIA 8.0 BELGIUM 8.0 BROOKS 3 S 8.0 SHEBOYGAN 7.5 ELLSWORTH 2 SW 7.0 LA CROSSE 2 E 6.5 ...Selected preliminary Peak Wind gusts in miles per hour earlier in the event... ...COLORADO... WALLSTREET 1 W 102 WHITE RANCH OPEN 4 NNW 97 TOLLAND 3 SE 85 CRISMAN 1 NE 81 BRAINARD LAKE 2 WSW 80 BUCKEYE 3 ESE 77 ASPEN SPRINGS 76 DOWNIEVILLE 1 ESE 72 LAPORTE 2 SSW 71 BOULDER 3 S 70 PINECLIFFE 3 ESE 69 ...IOWA... SIOUX GATEWAY AIRPORT 54 MAURICE 1 NE 53 ...MICHIGAN... COOPER HARBOR 41 GRAND MARAIS 1 NNE 41 ROCK OF AGES 34 ENE 39 MANISTIQUE 2 ENE 36 MUNISING 36 ...MONTANA... WASHOE 13 SW 93 BYNUM 14 W 87 BIGFORK 9 NE 82 EAST GLACIER PARK 8 SE 82 HILGER 7 ESE 82 LIVINGSTON 1 SSE 78 GALLATIN GATEWAY 16 SE 77 BIG TIMBER 2 SSW 76 HARLOWTON 2 ENE 76 WILSALL 17 NE 75 ...NEBRASKA... BRISTOW 3 WNW 66 PRAGUE 2 SW 66 GRAND ISLAND 4 NE 64 JOHNSTOWN 7 NE 63 NORFOLK AIRPORT 61 EMMET 3 NNE 60 GARLAND 5 NE 60 GENOA 3 N 59 VALENTINE 1 NNE 59 COLUMBUS AIRPORT 58 LINCOLN AIRPORT 58 OMAHA EPPLEY AIRFIELD 55 ...NORTH DAKOTA... HEART BUTTE DAM 1 WNW 70 LAKE TSCHIDA 70 BENTLEY 2 N 65 MOTT 12 E 65 DICKINSON 5 S 64 HETTINGER 1 NNW 62 BUFFALO SPRINGS 3 W 58 ...SOUTH DAKOTA... WASTA 3 NW 72 NEWELL 13 NE 68 RED ELM 1 WSW 68 WEWELA 68 CASTLE ROCK 20 NW 67 MUD BUTTE 1 ENE 65 PIERRE REGIONAL AIRPORT 2 N 65 GLAD VALLEY 14 E 64 HOOVER 7 WSW 64 RALPH 7 NNE 64 SOUTH EAGLE BUTTE 1 WSW 63 BUFFALO 1 N 62 WOLSEY 57 DOWNTOWN RAPID CITY 1 E 56 HURON REGIONAL AIRPORT 55 ...WYOMING... BORDEAUX 16 WSW 91 SOUTH GREELEY HIGH 6 SW 74 CHUGWATER 8 S 73 WOODS LANDING 9 ENE 73 CHEYENNE 1 NW 72 ARLINGTON 1 NNW 71 ELK MOUNTAIN 7 NW 70 WARREN AF BASE 11 WSW 70 CENTENNIAL 13 NE 68 SIBLEY PEAK 8 S 67 LARAMIE 14 WNW 63 The Clipper system will become fully absorbed by a strengthening offshore low pressure system tonight into Saturday. Snow showers associated with the clipper across the Great Lakes and the higher elevations of the northern and central Appalachians will gradually taper off, with leftover lake effect snow showers diminishing by late Saturday night. Farther east, snow will shift to the coastal areas of New England as the coastal storm deepens offshore. Additional light to moderate accumulations are likely, particularly in far eastern Maine. Snow ends by early Sunday morning as the coastal storm rapidly pulls away. This will leave cold and dry weather in its wake with Arctic high pressure building into the region. This will be the last Storm Summary issued by the Weather Prediction Center for this event. Please refer to your local National Weather service office for additional information. Miller
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