Wind Advisory 2, NWS Marquette, MI

939 
WWUS73 KMQT 171951
NPWMQT

URGENT - WEATHER MESSAGE
National Weather Service Marquette MI
251 PM EST Fri Jan 17 2025

MIZ005-181100-
/O.EXP.KMQT.WI.Y.0001.000000T0000Z-250117T2000Z/
/O.NEW.KMQT.CW.Y.0001.250120T0300Z-250121T0300Z/
Marquette-
Including the cities of Marquette and Gwinn
251 PM EST Fri Jan 17 2025

...COLD WEATHER ADVISORY IN EFFECT FROM 10 PM SUNDAY TO 10 PM EST 
MONDAY...
...WIND ADVISORY WILL EXPIRE AT 3 PM EST THIS AFTERNOON...

* WHAT...Very cold wind chills as low as 30 below expected.

* WHERE...Marquette County.

* WHEN...From 10 PM Sunday to 10 PM EST Monday.

* IMPACTS...The dangerously cold wind chills as low as 30 below zero 
  could cause frostbite on exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...An Extreme Cold Warning could be issued for 
  Monday night/Tuesday morning in the future.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

MIZ006-181100-
/O.EXP.KMQT.WI.Y.0001.000000T0000Z-250117T2000Z/
/O.NEW.KMQT.CW.Y.0001.250120T0300Z-250121T0300Z/
Alger-
Including the cities of Munising and Grand Marais
251 PM EST Fri Jan 17 2025

...COLD WEATHER ADVISORY IN EFFECT FROM 10 PM SUNDAY TO 10 PM EST 
MONDAY...
...WIND ADVISORY WILL EXPIRE AT 3 PM EST THIS AFTERNOON...

* WHAT...Very cold wind chills as low as 25 below expected.

* WHERE...Alger County.

* WHEN...From 10 PM Sunday to 10 PM EST Monday.

* IMPACTS...The dangerously cold wind chills as low as 25 below zero 
  could cause frostbite on exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...An Extreme Cold Warning could be issued for 
  Monday night/Tuesday morning in the future.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

MIZ001-003-181100-
/O.NEW.KMQT.CW.Y.0001.250119T0300Z-250121T0300Z/
/O.CON.KMQT.WI.Y.0002.250117T2200Z-250118T0800Z/
Keweenaw-Northern Houghton-
Including the cities of Houghton, Hancock, and Copper Harbor
251 PM EST Fri Jan 17 2025

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM EST SATURDAY...
...COLD WEATHER ADVISORY IN EFFECT FROM 10 PM SATURDAY TO 10 PM EST 
MONDAY...

* WHAT...For the Wind Advisory, northwest winds 20 to 30 mph with 
  gusts up to 45 mph expected. For the Cold Weather Advisory, very 
  cold wind chills as low as 25 below expected.

* WHERE...Keweenaw and Northern Houghton Counties.

* WHEN...For the Wind Advisory, until 3 AM EST Saturday. For the 
  Cold Weather Advisory, from 10 PM Saturday to 10 PM EST Monday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result. The 
  dangerously cold wind chills as low as 25 below zero could cause 
  frostbite on exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...An Extreme Cold Warning could be issued for 
  Monday night/Tuesday morning in the future.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

Secure outdoor objects.

&&

$$

MIZ009-010-181100-
/O.NEW.KMQT.CW.Y.0001.250119T0300Z-250121T0300Z/
Gogebic-Iron-
Including the cities of Ironwood and Iron River
151 PM CST Fri Jan 17 2025

...COLD WEATHER ADVISORY IN EFFECT FROM 9 PM SATURDAY TO 9 PM CST 
MONDAY...

* WHAT...Very cold wind chills as low as 34 below expected.

* WHERE...Iron and Gogebic Counties.

* WHEN...From 9 PM Saturday to 9 PM CST Monday.

* IMPACTS...The dangerously cold wind chills as low as 35 below zero 
  could cause frostbite on exposed skin in as little as 10 minutes.

* ADDITIONAL DETAILS...An Extreme Cold Warning is expected to be 
  issued for Monday night/Tuesday morning in the future.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

MIZ002-084-181100-
/O.NEW.KMQT.CW.Y.0001.250120T0300Z-250121T0300Z/
Ontonagon-Southern Houghton-
Including the cities of Ontonagon, Sidnaw, and Kenton
251 PM EST Fri Jan 17 2025

...COLD WEATHER ADVISORY IN EFFECT FROM 10 PM SUNDAY TO 10 PM EST 
MONDAY...

* WHAT...Very cold wind chills as low as 30 below expected.

* WHERE...Ontonagon and Southern Houghton Counties.

* WHEN...From 10 PM Sunday to 10 PM EST Monday.

* IMPACTS...The dangerously cold wind chills as low as 30 below zero 
  could cause frostbite on exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...An Extreme Cold Warning could be issued for 
  Monday night/Tuesday morning in the future.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

MIZ004-011-181100-
/O.NEW.KMQT.CW.Y.0001.250120T0300Z-250121T0300Z/
Baraga-Dickinson-
Including the cities of Iron Mountain and L'Anse
251 PM EST Fri Jan 17 2025 /151 PM CST Fri Jan 17 2025/

...COLD WEATHER ADVISORY IN EFFECT FROM 10 PM EST /9 PM CST/ SUNDAY 
TO 10 PM EST /9 PM CST/ MONDAY...

* WHAT...Very cold wind chills as low as 31 below expected.

* WHERE...Baraga and Dickinson Counties.

* WHEN...From 10 PM EST /9 PM CST/ Sunday to 10 PM EST /9 PM CST/ 
  Monday.

* IMPACTS...The dangerously cold wind chills as low as 30 below zero 
  could cause frostbite on exposed skin in as little as 10 minutes.

* ADDITIONAL DETAILS...An Extreme Cold Warning could be issued for 
  Monday night/Tuesday morning in the future.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

MIZ012-013-181100-
/O.NEW.KMQT.CW.Y.0001.250120T0300Z-250121T0300Z/
Menominee-Delta-
Including the cities of Menominee, Escanaba, and Gladstone
151 PM CST Fri Jan 17 2025 /251 PM EST Fri Jan 17 2025/

...COLD WEATHER ADVISORY IN EFFECT FROM 9 PM CST /10 PM EST/ SUNDAY 
TO 9 PM CST /10 PM EST/ MONDAY...

* WHAT...Very cold wind chills as low as 27 below expected.

* WHERE...Delta and Menominee Counties.

* WHEN...From 9 PM CST /10 PM EST/ Sunday to 9 PM CST /10 PM EST/ 
  Monday.

* IMPACTS...The dangerously cold wind chills as low as 25 below zero 
  could cause frostbite on exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...An Extreme Cold Warning could be issued for 
  Monday night/Tuesday morning in the future.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

MIZ014-085-181100-
/O.NEW.KMQT.CW.Y.0001.250120T0300Z-250121T0300Z/
Southern Schoolcraft-Northern Schoolcraft-
Including the cities of Manistique and Seney
251 PM EST Fri Jan 17 2025

...COLD WEATHER ADVISORY IN EFFECT FROM 10 PM SUNDAY TO 10 PM EST 
MONDAY...

* WHAT...Very cold wind chills as low as 23 below expected.

* WHERE...Northern Schoolcraft and Southern Schoolcraft Counties.

* WHEN...From 10 PM Sunday to 10 PM EST Monday.

* IMPACTS...The dangerously cold wind chills as low as 25 below zero 
  could cause frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

MIZ007-172100-
/O.CON.KMQT.WI.Y.0001.000000T0000Z-250117T2100Z/
Luce-
Including the cities of Newberry
251 PM EST Fri Jan 17 2025

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

* WHAT...South winds 20 to 25 mph with gusts up to 40 mph.

* WHERE...Luce County.

* WHEN...Until 4 PM EST this afternoon.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

Secure outdoor objects.

&&

$$

TAP

Area Forecast Discussion
National Weather Service Marquette MI
311 AM EST Fri Jan 17 2025

.KEY MESSAGES...

- Blustery southerly winds develop today, turning to the NW
  tonight behind a passing cold front. Wind gusts up to
  40-50mph will be possible near the shorelines of Marquette,
  Alger, and Luce counties later this morning through the
  afternoon, and across the Keweenaw tonight.

- Lake effect snow develops across the NW wind belts tonight,
  with 1-3 inches of snow accumulations by the morning. Gusty
  winds may lead to blowing snow and reduced visibility.

- Dangerously cold arctic air settles into the area this weekend
  into early next week, leading to temperatures remaining
  subzero from Saturday night through at least Tuesday morning
  over interior western Upper Michigan. Much of the rest of west
  and central Upper Michigan may see temperatures fail to rise
  above zero on Monday and maybe Tuesday.

- Homeowners and property managers should take action now for
  this cold period, especially if past very cold periods have
  yielded impacts. Ensure your Winter Car Survival Kit is up-to-
  date. This weekend through Tuesday, limit time outdoors for
  you and your pets, and check on vulnerable neighbors.

- Frequent whiteouts are expected in the northwest wind snow
  belts Saturday through Tuesday morning due to the falling snow
  being a fine, powdery type snow that is highly effective at
  reducing visibility. Expect very hazardous driving conditions in
  the lake effect snow areas.

- No widespread, significant snowfalls for Upper MI through next week.
  Nearly all of the snow that occurs will be lake effect driven.

&&

.SHORT TERM /THROUGH TONIGHT/...
Issued at 302 PM EST Thu Jan 16 2025

Afternoon RAP analysis and water vapor imagery reveal troughing
nudging into the Upper Great Lakes and drier low level air making an
eastward trek across Lake Superior. This is actively working to
diminishing NW lake effect snow across the forecast area, where the
west half has been dry the last several hours. Meanwhile, light lake
effect snow showers are ongoing across the east half of the UP and
will continue through the evening. Into tonight, dry air will
continue to eat away at lake induced inversion heights, tapering off
LES across the east before the surface ridge axis presses into the
UP, backing winds to the SW and kicking any remaining showers
offshore. Overall, snow accumulations through Friday morning are
expected to remain low, generally less than an inch across the east-
central, though Luce county could pick up another 1-2" considering
the far east will hold onto low-level moisture the longest. Lows
tonight will dip into the teens across the interior to near 20F
along the lakeshores.

Upstream, a clipper is forecast to dig into the Upper
Great Lakes and send a sub-990mb sfc low north of Lake Superior
through Friday. Isentropic uplift noted around the ~290k theta sfc
Friday morning could touch off some light snow showers across the
west-central UP in the AM hours, however forecast soundings show a
stout dry layer below 700mb, which will be difficult to overcome;
thus PoPs have been capped to around 20%.

Otherwise, south-southwest winds will be on the increase early
Friday morning coinciding a 40-45kt low-level jet nosing into the
west-central UP. Areas susceptible to strong downsloping along the
Lake Superior shoreline in Marquette and Alger counties could see a
gusty morning with sfc winds upwards of 35-40 mph (>75% chance).

&&

.LONG TERM /FRIDAY THROUGH THURSDAY/...
Issued at 506 PM EST Thu Jan 16 2025

Medium range model guidance remains in excellent agreement on the
large scale surge of arctic air into the U.S. this weekend into
early next week. This surge of arctic air will be driven by a
building ridge over the ne Pacific that becomes highly amplified
northward thru Alaska/nw Canada into the high Arctic over the
weekend, forcing a significantly deepening trof downstream across
central to eastern N America. Negative height anomalies at 500mb in
this trof settle at ~320m (2.2-2.6 sigma) over WI on Mon. Over the
last 24hrs of model runs, ensembles have settled on 850mb temps
dropping to -30 to -31C into western Upper MI in the core of the
cold air as it reaches Upper MI. 850mb temps that low at this time
of year very easily support 2m temps remaining subzero during the
daylight hrs across interior western Upper MI and likely thru much
of central Upper MI as well. In addition, with 850mb temps at -30C
to -31C at lowest, would expect temps during the daylight hrs over
interior western Upper MI (generally Ironwood to Iron River area) to
struggle to get above -10F Sun/Mon, Mon in particular as the core of
the coldest air passes on that day, leading to the coldest day fcst
area wide. Once temps fall blo 0F over interior western Upper MI Sat
night, they won't rise above 0F until sometime Tue aftn at the very
earliest, but it seems more likely now that it will be late Wed
morning before that happens. With the exception of areas from
Menominee to Escanaba, Manistique and Newberry, and along the Lake
Superior shore where w to nw winds are onshore, much of the rest of
the fcst area may remain blo 0F Mon and potentially Tue. Min temps
will range down thru the negative teens and -20s F away from Lake
Superior. Temps will even fall subzero to Lake Superior, except
where w to nw winds are onshore. There is the potential for a
morning or two with air temps falling to or blo -30F in Iron County,
maybe Gogebic County, but that will depend on whether sfc winds
largely decouple. Seems unlikely, but Sun night and Mon night would
be the nights to watch. A few record low min and record low max
temps may be set across Upper MI with this arctic outbreak.
Homeowners and property managers who have had issues with water
pipes freezing during periods of very cold conditions should make
preparations now. Areas that have very little snow cover could also
become at risk for freezing of water supply lines early next week as
ground frost depths deepen rapidly.

Fortunately, winds won't be strong to really drive wind chills down
during this the arctic outbreak. Nonetheless, the cold will be
dangerous, and expect conditions to warrant cold weather advisories.
A few extreme cold warnings will be possible interior w. Even light
winds could result in conditions feeling like -20 to -40. These
conditions can result in hypothermia and frostbite in less than 30
minutes. Anyone with outside plans in this period should limit time
outside. Everyone is encouraged to ensure their Winter Car Survival
Kit is up to date. Check on vulnerable neighbors and limit outdoor
time for pets.

As for pcpn, this pattern will not support any widespread,
significant snowfalls for Upper MI through next week as only a few
clipper type waves will generate some brief periods of -sn. So,
snowfall will be almost exclusively lake effect driven. While the
arctic air arriving over the weekend/early next week will lead to
extreme overlake instability, the cold will also suppress the DGZ
toward the sfc or eliminate it altogether, leading to a fine/powdery
type snow (low SLR) that does not accumulate as efficiently. On the
flip side, this type of snow is highly effective at reducing
visibility, leading to frequent whiteouts in snow showers. This type
of snow is also easily kicked up on roads by vehicles, leading to
mini whiteouts trailing vehicles. Travel in the areas affected by nw
flow LES Sat thru Tue will be very hazardous due to poor visibility.
From Tue onward, flow across N America deamplifies, but there will
continue to be some degree of ridging in the mean over the ne
Pacific/adjacent N America forcing troffing in central and eastern N
America. The deamplification will allow for moderation from the
early week bitter cold, but the pattern will still support the
potential for colder air to at least graze Upper MI with the passage
of clipper type shortwaves. Expect temps on most days during the
last half of next week to be blo normal.

Beginning Fri, a clipper shortwave will pass across the area. This
wave will initiate the start of the arctic air surge. WAA/isentropic
ascent ahead of the wave will need to overcome drier air as that
ascent overspreads the area late tonight thru Fri morning. Models
are split on whether that will occur, but sufficient saturation will
occur deeper into the retreating colder air where it is easier to
achieve. Thus, will hold onto chc pops over the eastern fcst area in
the morning. Any snow accumulation will be less than 1 inch. Bigger
fcst concern is wind. Pres falls will pass across the area in the
waa regime with the center at 6-8mb/3hr passing just n of Lake
Superior. The resulting isallobaric wind will be aligned with the s
to sw gradient wind and thus enhance the wind. Wind direction will
be particularly favorable from the downslope areas of Marquette
County into the eastern fcst area. Given that HRRR/NAM/GFS fcst
soundings show potential to mix to 40-50kt winds for a few hrs and
considering the isallobaric enhancement, will hoist a wind advy for
Marquette/Alger counties for gusts up to 50mph Fri morning until
about mid aftn (13z-20z). In reality, peak winds will likely occur
in a 2-3hr period, so the advy timing runs a little long. Later
shifts will need to consider adding Schoolcraft and Luce as 180-190
wind direction is an ideal direction for strong winds there. Fcst
reflects 40-45mph gusts in that area for now. Any loose snow will
lead to blowing/drifting snow on roads. Cold front that passes late
Fri aftn/evening will be followed by incoming 6-9mb/3hr pres rises,
bringing another round of stronger winds, this time nw winds to the
Keweenaw and to lakeside locations from Alger County eastward. Based
on mixed layer winds in fcst soundings, expect 40-50mph gusts, maybe
peak up to 55mph on the Keweenaw. Will hold off on headline for
these winds given the late aftn/evening time frame. High temps on
Fri should reach the low/mid 30s F.

Cold fropa will initiate LES and lead to progressively colder air
flowing into the area thru the weekend on predominantly nw low-level
flow. Temps will fall thru the day on Sat as 850mb temps fall from
just after midnight Fri night readings of around -10C e to -15C w to
to around -22C e to -25C w by Sat evening. By sunset Sat, temps will
be nearing 0F w to around 10F above e. The increasingly colder air
surrounding the lake will progressively strengthen lake induced
thermal troffing, leading to winds developing an offshore component,
particularly off of nw WI, off of Marquette County and off of
Ontario along the e side of Lake Superior. This will favor enhanced
convergence into Ontonagon/southern Houghton counties and also into
Alger/Luce counties. Expect LES to be most persistent/heavier in
those areas. However, by later Sat and thru Tue, the cold will
suppress the DGZ to near the sfc or eliminate it altogether, leading
to a fine/powdery type snow that does not accumulate as efficiently
as typical LES. Initial thoughts are that snow accumulations will
end up in a 2-4 to locally 6 inch range on Sat before the arctic air
largely eliminates the DGZ. Then, a general 1-3 to isold 4-5
inches/12hr range Sat night thru Tue. The higher amounts are more
likely in eastern portions of Alger into Luce Counties due to longer
fetch and because the offshore wind component off of Ontario often
leads to particularly strong low-level convergence. In fact, given
the magnitude of the cold and the not particularly strong low-level
gradient wind fields as we get into Sun thru Tue, easterly winds may
push out a good distance over eastern Lake Superior at times,
converging with the wnw/nw winds over the lake. That may boost snow
amounts more than previously mentioned. Will be something to monitor
as we get closer to that time frame. Bigger issue with the snow will
be whiteouts as previously discussed. Winds will be stronger on Sat,
leading to blsn, but during the coldest period Sun into Tue, winds
won't be particularly strong, gusting to around 25mph near the Lake
Superior shore and Keweenaw and up to around 20mph elsewhere. Even
so, the fine/powdery snow will be easily lofted by these winds to
further reduce the already very poor vis from the falling snow.

Wind begin to back westerly Tue with onset of waa, shifting LES to
mainly the Keweenaw over the w and closer to shore over the e.
Clipper type shortwave will pass at some point Wed/Thu to provide a
chc of -sn, followed by some LES.

&&

.AVIATION /06Z TAFS THROUGH 06Z SATURDAY/...
Issued at 1221 AM EST Fri Jan 17 2025

Dry air will continue to work into the area. IWD will stay VFR into
Fri morning before MVFR conditions move back in. CMX and SAW
will go VFR and stay that way into Fri morning. MVFR will come
back in to CMX and SAW in the afternoon. Friday, a low pressure
passing north of Lake Superior will increase south-southwest
winds in the morning where gusts upwards of 25-30kts are
possible at all sites through the afternoon. The uptick in winds
aloft will also bring potential low level wind shear impacts at
IWD. CMX will have some blowing snow with the gusty winds where
it could get down into the IFR category Friday evening.

&&

.MARINE...
Issued at 506 PM EST Thu Jan 16 2025

A couple of passing clippers will result in a strong pressure
gradient over the lake at times in this period, followed by
deepening arctic cold this weekend and early next week.

Ongoing nw winds to 20-30kt, strongest over eastern Lake Superior
will fall briefly to 20kt or less by late evening as sfc high pres
ridge quickly passes. Winds then increase again late tonight into
Friday as next clipper system approaches. S to sw gales are likely
by Fri morning as winds are enhanced by strong pressure falls
passing over the area with the max pres falls passing by just n of
the lake. Gales will reach 40-45kt across the e half, including a 15-
25pct chance of peak gusts reaching storm force. After the cold
front associated with the clipper crosses the lake Fri aftn/night,
nw gales will develop as colder air flows into the area with winds
enhanced by incoming pres rises. Another high end gale will occur
with the nw winds, including a 15-25pct chance of peak gusts
reaching storm force. These stronger winds will diminish during the
day Sat, but increasingly colder air flowing over the lake will
support 20-30kt winds. There is also some local gale potential where
wnw/nw winds over the lake converge with winds locally altered by
very cold air flowing off of the land. There area some indications
for another clipper middle of next week, which could increase winds
again.

The increasingly colder air arriving over weekend will support ice
accretion from freezing spray. Expecting moderate to heavy ice
accretion rates at times.

&&

.MQT WATCHES/WARNINGS/ADVISORIES...
Upper Michigan...
  Wind Advisory from 8 AM this morning to 3 PM EST this
     afternoon for MIZ005-006.

Lake Superior...
  Gale Warning from 7 AM EST /6 AM CST/ this morning to 1 PM EST
     /noon CST/ Saturday for LSZ162-240>248-263-264.

  Heavy Freezing Spray Warning from 1 AM EST /midnight CST/
     Saturday to 1 PM EST /noon CST/ Sunday for LSZ162-240>242-
     263.

  Heavy Freezing Spray Warning from 1 AM Saturday to 7 PM EST
     Monday for LSZ244>251-264>267.

  Gale Warning from 7 AM this morning to 7 PM EST Saturday for
     LSZ249>251-265>267.

Lake Michigan...
  Gale Warning from 9 AM this morning to 7 PM EST this evening
     for LMZ221-248-250.

&&

SHORT TERM...BW
LONG TERM...Voss
AVIATION...07
MARINE...Voss

Hazardous Weather Outlook
National Weather Service Marquette MI
415 PM EST Thu Jan 16 2025

MIZ001>007-009>014-084-085-171300-
Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce-
Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft-
Southern Houghton-Northern Schoolcraft-
415 PM EST Thu Jan 16 2025 /315 PM CST Thu Jan 16 2025/

This Hazardous Weather Outlook is for portions of central Upper
Michigan and western Upper Michigan.

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

South to southwest winds will gust to 40 to 50 mph on Friday
from the Marquette area to Munising, Newberry and
Manistique. The strongest winds will occur near Lake Superior in
Marquette and Alger counties. See the latest Weather Message for
additions details.

Northwest winds will gust to 40 to 50 mph across the Keweenaw late
Friday afternoon and evening and along the lakeshore east of
Harvey during Friday evening.

Dangerously cold arctic air settles into the area this weekend
into early next week. Across interior western Upper Michigan, air
temperatures will be below zero from Saturday night through at
least Tuesday morning, and potentially until late Wednesday
morning. Into central Upper Michigan, the time period of
continuously subzero temperatures will be a little shorter. Monday
will be the coldest day. On that day, temperatures may not rise
above 10 below zero during the daylight hours over interior
western Upper Michigan. Wind chills of 15 below to 40 below zero,
coldest interior west, are expected late Saturday through at
least Tuesday morning.

In addition, lake effect snow will result in periods of whiteout
conditions in the northwest wind snow belts late Saturday through
Tuesday. After snow accumulations of 2 to 4 to locally 6 inches on
Saturday, snow accumulations will range from 1 to 3 to locally 4
inches per 12 hours from Saturday night through Tuesday. The
higher snow accumulations will occur in Alger and Luce counties.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to submit any observed high winds
and also snowfall reports to the National Weather Service via
phone, on our website, or through Facebook or Twitter.

LSZ162-240>251-263>267-171300-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
415 PM EST Thu Jan 16 2025 /315 PM CST Thu Jan 16 2025/

This Hazardous Weather Outlook is for portions of Central Lake
Superior...Eastern Lake Superior and Western Lake Superior.

.DAY ONE...Tonight

A few northwest gale force gusts to 35 knots are possible early
this evening across eastern Lake Superior.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

South to southwest gales of 35 to 45 knots develop across most of
Lake Superior Friday morning, strongest across the east half.
These winds become northwest 40 to 45 knots Friday night into
Saturday morning. See the latest Open Lakes Forecast and Marine
Weather Message for more details.

Heavy freezing spray is expected last Friday night through
Tuesday.

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

LMZ221-248-250-171300-
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
415 PM EST Thu Jan 16 2025

This Hazardous Weather Outlook is for portions of Northern Lake
Michigan.

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

South to southwest gales of 35 to 40 knots are expected on
Friday. See the latest Marine Weather Message and Nearshore
Forecast for more details.

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

BW/Rolfson