Issued at 4:38 PM CST, Monday, February 8th, 2010
Lake Effect Snow Update:
850 mb temps around -12 degrees C will persist through Tuesday across Lake Superior while surface water temperatures were running between 33-35 degrees f. Temperature difference between 850 mb and the lake water temps have been running between 12-15 degrees since last night, and this has been enough to generate some very heavy snow bands along the North Shore of Lake Superior which began last night and continued through Today. Some of the most intense snow showers have dropped 1-3″ per hour snow rates Today along the North Shore of Lake Superior.
Some snowfall reports from last night and Today from Northern Minnesota and Northwest Wisconsin. Totals are through This Afternoon. Source: NWS Duluth, Minnesota.
Duluth MN NWS (St. Louis County) 2.0″ or 0.11″ liquid precip. Ending at 4 PM.
30 miles North of Two Harbors MN (Lake County) 6.0″
Cotton MN (St. Louis County) 1.2″
Grand Marais MN (Cook County) 5.5″
Breezy Point MN (Crow Wing County) 3.0″
5 miles Southeast of Grand Rapids MN (Itasca County) 2.0″
Beaver Bay MN (Lake County) 3.0″
Schroder MN (Lake County) 8.0″
International Falls MN (Koochiching County) 1.9″
Lutsen MN (Cook County) 5.0″
Finland MN (Lake County) 12.0″
3 miles East of Finland MN (Lake County) 7.8″
Brainerd MN (Crow Wing County) 2.5″
…All headlines issued by the NWS Duluth, Minnesota…
*LAKE EFFECT SNOW WARNING*
A Lake Effect Snow Warning remains in effect until Midnight CST Tuesday Night for the following Counties in Northwest Wisconsin: Douglas…Bayfield…And Ashland. Some Cities included in the warning are: Superior WI…Oliver WI…Pattison Park WI…Patzau WI…Poplar WI…Brule WI…Solon Springs WI…Hawthorne WI…Gordon WI…Port Wing WI…Cornucopia WI…Bayfield WI…Washburn WI…Iron River WI…Moquah WI…Grand View WI…Cable WI…Ashland WI…Odanah WI…High Bridge WI…And Butternut WI…
Heavy lake effect snow showers will develop Tonight and will continue through Tuesday Evening across the favored snowbelt areas in Northern portions of Douglas, Bayfield, and Ashland Counties. Snowfall rates of 1″ or more an hour could develop at times while visibilities drop to one quarter mile for brief periods of time.
East to northeast winds This Evening will become northeast Overnight through early Tuesday Afternoon, and will then become north-northeast Tuesday Afternoon through Tuesday Evening. The focus for heavier lake effect snow showers should shift south/east of the city of Superior Tuesday Morning or early Tuesday Afternoon as winds back from east-northeast to north-northeast.
Total snowfall accumulations of 5-9″ are expected by late Tuesday Night in Northern portions of Douglas, Bayfield, and Ashland Counties with localized totals of up to one foot possible! Lower snowfall totals from 2-5″ are expected in Southern parts of Douglas, Bayfield, and Ashland Counties.
*WINTER WEATHER ADVISORY*
A Winter Weather Advisory remains in effect until Noon CST Tuesday for the following Counties in Northeast Minnesota: Southern St. Louis and Carlton. Some Cities included in the advisory are: Duluth MN…Arnold MN…Twig MN…French River MN…Brookston MN…Saginaw MN…Gowan MN…Floodwood MN…Cloquet MN…Esko MN…Moose Lake MN…Wrenshall MN…And Cromwell MN…
Light snow and flurries will persist in the advisory area Tonight and Tuesday with accumulations of 1-3″ expected by Tuesday Afternoon.
East to northeast winds coming off Lake Superior will cause heavier lake effect snow showers in the Twin Ports, north to Arnold and French River and south to Cloquet, Esko, Fond Du Lac, West Duluth, and Wrenshall This Evening. Snowfall rates could reach 1″ an hour in the most intense snow showers. By late Tonight into Tuesday Morning, winds will become northeast and this should shift the threat for heavier lake effect snow showers to areas mainly south/east of the Twin Ports, but there is a potential that the West Duluth, Fond Du Lac, Proctor, and Esko areas could continue to see heavy lake effect snow showers Overnight. By Tuesday Morning, winds are expected to shift more to the north/northeast which will shift the focus of heavy lake effect snow showers to areas southeast/east of Duluth and Superior.
Snowfall accumulations will range widely as is often the case with lake effect snow. In general 3-6″ of snow is expected to accumulate by Tuesday Morning, but localized higher amounts of 6-11″ may occur.
Travel conditions in the advisory and warning areas will be difficult with snow covered and slippery roads. Visibilities will be reduced to as low as one quarter mile at times when the heavier lake effect snow showers move through. Use extreme caution if driving and make sure to have a winter survival kit in your vehicle.
Tim
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