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Special Weather Statement

Special Weather Statement
National Weather Service Marquette MI
512 AM EST Wed Jan 23 2019

MIZ002-004>007-009>014-084-085-232200-
Ontonagon-Baraga-Marquette-Alger-Luce-Gogebic-Iron-Dickinson-
Menominee-Delta-Southern Schoolcraft-Southern Houghton-
Northern Schoolcraft-
Including the cities of Ontonagon, L`Anse, Gwinn, Marquette,
Grand Marais, Munising, Newberry, Ironwood, Iron River,
Iron Mountain, Menominee, Escanaba, Gladstone, Manistique,
Kenton, Sidnaw, and Seney
512 AM EST Wed Jan 23 2019 /412 AM CST Wed Jan 23 2019/

...Dangerous Winter Conditions Setting in on Thursday and
Continuing for Much of Next Week...

A strong arctic cold front sweeping across the area Thursday will
be the beginning of a long duration period of very cold
conditions that will likely feature three surges of bitter cold
air over the next week. For much of Upper Michigan, high
temperatures Friday through at least the middle of next week will
generally not be any higher than the single digits above zero
with nighttime lows mostly between 5 below and 20 below zero.
Temperatures will be even lower on any clear nights with light
winds. High temperatures on a few days may not rise above zero
over portions of Upper Michigan. Wind chill readings will
frequently range from 15 below to 30 below zero.

As the first arctic front passes Thursday, expect a period of
heavy lake effect snow across much of the Lake Superior snow belts,
followed by northwest winds gusting to 25 to 40 mph and falling
temperatures. As the arctic air flows into the area, snowflake
size will become small and extremely effective at reducing
visibility. Along with the blowing snow, frequent white-out
conditions will become likely in the Lake Superior snow belts during
the day Thursday. Dangerous travel conditions will likely occur
between Marquette and Munising Thursday afternoon and Thursday
night. Across much of the west half of Upper Michigan,
temperatures Thursday will fall to zero or below zero by late
afternoon with wind chill readings down to 15 below to 25 below
zero.

Another surge of even colder air will arrive Saturday night with a
third surge of bitter cold air possible during the middle of next
week. Lake effect snow will occur in the Lake Superior snow belts
whenever the winds are onshore. Although the cold air will
prevent significant snow accumulations, the light, powdery snow
will lead to very poor visibility and frequent white-out
conditions during periods of even moderate winds. This type of
snow will also be easily whipped up on the roads, leading to
white-out conditions for short distances behind vehicles on the
highways.

Make any necessary preparations now for this expected long
duration period of very cold conditions. Be aware that dangerous
travel conditions will occur at times in the Lake Superior snow
belts Thursday through at least the middle of next week. Make
sure you have a winter survival kit in your vehicle if traveling.

$$

Rolfson



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