Jennifer Perez

A clipper system is now east of the U.P. Behind it a trough swings through from north to south, which will cause lake effect snow to increase during the day. We’ve issued a First Alert Weather Day for Ontonagon and Houghton counties today through tomorrow morning due to the development of moderate to heavy intensities. This will cause hazardous travel with snow covered roads and reduced visibilities at times during the afternoon through tonight. Over the next twenty-four hours Snowfall amounts in those counties will range 12-15″. Otherwise, lower elevations areas in Western U.P. will have ranges of 7-10″ of snow. Amounts in the Eastern U.P. will range 3-6″ with isolated areas ranging around a foot. The lake effect snow tapers off by midday tomorrow. The pattern is still remains active with on off snow. The next disturbance will brings light scattered snow Wednesday night into Thursday with another clipper system.

The First Alert Weather Day for Ontonagon and Northern Houghton counties ends at 7 am. However, impacts continue. Light lake effect snow showers persist for the first half of the day for the Northern U.P. Snowfall will generally be 1-3″, but higher elevations will push up to 5″ by the end of the day. Plan on snow-covered roads and slippery conditions. High pressure moves in overnight resulting in sunshine for the first part of tomorrow. Then, scattered snow showers will move in late tomorrow afternoon in the west and spread east through Thursday with a front. The pattern remains active with on-off bouts of lake effect snow into the weekend. Then, a deep trough in the jetstream will bring an arctic blast of air by early next week! Temperatures will be 10-20º below the normal.

A couple milder days to end the week

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Light lake effect snow develops this morning along the northwest wind belts. Then, another clipper moves in tomorrow. Ahead of it, milder air conditions through tomorrow. Behind it, snowy, windy, and colder air develops.

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Strong winds develop during the day ahead of a clipper system. Gusts will range 30-50mph out of the south. Watch out for blowing snow, toppled objects and sporadic outages. Scattered snow moves in by this evening with lake effect snow taking over tonight through the weekend along the northwest wind belts. Snowfall amounts will range 3-6″ with higher elevations exceeding 7″ by Sunday evening. Blustery conditions persist throughout the weekend with gusts ranging 25-35mph. This will cause hazardous travel in the north near Lake Superior with whiteouts possible since the snow will be fine and powdery.

A big arctic air mass has settled across the region with dangerous cold. Temperatures will remain ten to twenty degrees below the normal with windchills ranging in the twenties to forties below. The upper-level trough bringing the arctic air will shift northeast during the midweek allowing this cold airmass to let up. Temperatures will rebound to the teens for the second half of the week. In the meantime, lake effect snow will continue along the northwest wind belts. This will continue to impact the Keweenaw, Western U.P. and near Lake Superior east of Marquette. Roads will be slippery with blowing snow in those areas. Additional snowfall will be 3-6″ with higher elevations exceeding 7″. We’re tracking a clipper coming on Wednesday with a round of scattered snow.

The entire U.P. continues under a First Alert Weather due to the extreme cold. This arctic air mass starts to shift out of the region tomorrow bringing back relatively milder air for the rest of the week. In the meantime, wind chills continue to range twenties to forties below zero. Please, be prepared if you’re spending time in the elements and don’t forget a winter survival kit for your vehicle.

The deep upper-level trough with the arctic air mass is moving out and relatively milder air is moving in. This comes a head of a clipper system, which will bring light scattered snow. Then, lake effect snow showers along the northwest wind belts late in the day through tomorrow. Snowfall in the Western and Eastern U.P. near Lake Superior will range 3-6″ with Marquette County ranging 1-3″. Another clipper system comes on Saturday with above normal temperatures.