Alert archive / Wisconsin / Blizzard Warnings in 2024

Blizzard Warning 1, NWS Milwaukee, WI

January 12, 2024Fond du Lac County, Sheboygan County, Wisconsin

NWS Milwaukee, WI issued this blizzard warning at Jan 12, 2024, 2:10 PM CST for Fond du Lac County, Sheboygan County, Wisconsin. It took effect at Jan 12, 2024, 5:00 PM CST. It was in force for 10 hr. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jan 12, 2024, 2:10 PM CST (20:10 UTC)
In effect from
Jan 12, 2024, 5:00 PM CST
Expired
Jan 13, 2024, 3:00 AM CST
In force
10 hr
Issued by
NWS Milwaukee, WI

Counties Fond du Lac County, WI, Sheboygan County, WI

The radar

The Green Bay radar (KGRB), 83 km from the middle of the area, began a volume at 20:12 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jan 12, 5:46 PM CSTSNOW 34 Nnw Sheboygan, WIWet Slushy Snow.
Jan 12, 10:54 PM CSTSNOW 12Ripon, WI
Jan 12, 11:30 PM CSTSNOW 12Fond Du Lac, WIVia broadcast media.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.2 hours before the alert went out and 81 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2024-01-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2024-01-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
708 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
171 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

607 
WWUS43 KMKX 122010
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
210 PM CST Fri Jan 12 2024

WIZ051-052-130415-
/O.NEW.KMKX.BZ.W.0001.240112T2300Z-240113T0900Z/
/O.NEW.KMKX.WS.W.0003.240113T0900Z-240113T1800Z/
/O.EXT.KMKX.WS.W.0002.000000T0000Z-240112T2300Z/
Fond du Lac-Sheboygan-
Including the cities of Fond Du Lac, Plymouth, Sheboygan Falls, 
Howards Grove, and Oostburg
210 PM CST Fri Jan 12 2024

...WINTER STORM WARNING NOW IN EFFECT UNTIL 5 PM CST THIS
AFTERNOON...
...BLIZZARD WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 3 AM
CST SATURDAY...
...WINTER STORM WARNING IN EFFECT FROM 3 AM TO NOON CST
SATURDAY...

* WHAT...Heavy snow and blowing snow will continue into Saturday
  morning. Blizzard conditions are expected from late this
  afternoon into late tonight due to heavy snow and winds gusting
  to 45 mph. Additional snow accumulations of 4 to 8 inches, with
  lower amounts possible along the lakeshore.  

* WHERE...Fond du Lac and Sheboygan Counties.

* WHEN...The Winter Storm Warning is until 5 PM CST this
  afternoon, with the Blizzard Warning in effect from 5 pm CST
  this afternoon to 3 AM CST Saturday. The Winter Storm Warning 
  resumes at 3 AM CST Saturday and continues until noon CST 
  Saturday.

* IMPACTS...Travel could be very difficult to impossible. Areas of
  blowing snow will significantly reduce visibility. Gusty winds
  could bring down tree branches and cause power outages. The
  evening commute will be impacted. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ046-047-056>059-062>065-067>070-130415-
/O.CON.KMKX.WS.W.0002.000000T0000Z-240113T1800Z/
Marquette-Green Lake-Sauk-Columbia-Dodge-Washington-Iowa-Dane-
Jefferson-Waukesha-Lafayette-Green-Rock-Walworth-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Baraboo, Reedsburg, 
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin, 
Lodi, Beaver Dam, Waupun, Mayville, West Bend, Germantown, 
Hartford, Dodgeville, Mineral Point, Barneveld, Madison, 
Watertown, Fort Atkinson, Jefferson, Waukesha, Brookfield, 
New Berlin, Menomonee Falls, Muskego, Darlington, Shullsburg, 
Benton, Belmont, Argyle, Blanchardville, Monroe, Brodhead, 
Janesville, Beloit, Whitewater, Delavan, Elkhorn, Lake Geneva, 
and East Troy
210 PM CST Fri Jan 12 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 8
  inches. Winds gusting as high as 40 mph causing blowing and
  drifting of snow. Near blizzard conditions are possible.

* WHERE...Portions of south central and southeast Wisconsin.

* WHEN...Until noon CST Saturday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow
  could significantly reduce visibility. The evening commute will
  be impacted. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ060-066-071-072-130415-
/O.CON.KMKX.WS.W.0002.000000T0000Z-240113T1800Z/
Ozaukee-Milwaukee-Racine-Kenosha-
Including the cities of Mequon, Cedarburg, Grafton, Milwaukee, 
Racine, and Kenosha
210 PM CST Fri Jan 12 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 3 to 7
  inches, with the lower amounts toward the lakeshore. Winds
  gusting as high as 40 mph causing blowing and drifting of snow.
  Near blizzard conditions are possible.

* WHERE...Ozaukee, Milwaukee, Racine and Kenosha Counties.

* WHEN...Until noon CST Saturday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The evening commute will
  be impacted. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
2 follow-up statements
039 
WWUS43 KMKX 130257
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
857 PM CST Fri Jan 12 2024

WIZ051-052-131100-
/O.CON.KMKX.BZ.W.0001.000000T0000Z-240113T0900Z/
/O.CON.KMKX.WS.W.0003.240113T0900Z-240113T1800Z/
Fond du Lac-Sheboygan-
Including the cities of Fond Du Lac, Plymouth, Sheboygan Falls, 
Howards Grove, and Oostburg
857 PM CST Fri Jan 12 2024

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 AM CST SATURDAY...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM TO NOON CST
SATURDAY...

* WHAT...For the Blizzard Warning, blizzard conditions. Winds
  gusting as high as 45 mph. For the Winter Storm Warning, heavy
  snow expected. Winds gusting as high as 40 mph. Additional snow
  accumulations of 2 to 5 inches. 

* WHERE...Fond du Lac and Sheboygan Counties.

* WHEN...For the Blizzard Warning, until 3 AM CST Saturday. For 
  the Winter Storm Warning, from 3 AM to noon CST Saturday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. Gusty winds could 
  bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ046-047-056>059-062>065-067>070-131100-
/O.CON.KMKX.WS.W.0002.000000T0000Z-240113T1800Z/
Marquette-Green Lake-Sauk-Columbia-Dodge-Washington-Iowa-Dane-
Jefferson-Waukesha-Lafayette-Green-Rock-Walworth-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Baraboo, Reedsburg, 
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin, 
Lodi, Beaver Dam, Waupun, Mayville, West Bend, Germantown, 
Hartford, Dodgeville, Mineral Point, Barneveld, Madison, 
Watertown, Fort Atkinson, Jefferson, Waukesha, Brookfield, 
New Berlin, Menomonee Falls, Muskego, Darlington, Shullsburg, 
Benton, Belmont, Argyle, Blanchardville, Monroe, Brodhead, 
Janesville, Beloit, Whitewater, Delavan, Elkhorn, Lake Geneva, 
and East Troy
857 PM CST Fri Jan 12 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 2 to 4 
  inches. Winds gusting as high as 45 mph.

* WHERE...Portions of south central and southeast Wisconsin.

* WHEN...Until noon CST Saturday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ060-066-071-072-131100-
/O.CON.KMKX.WS.W.0002.000000T0000Z-240113T1800Z/
Ozaukee-Milwaukee-Racine-Kenosha-
Including the cities of Mequon, Cedarburg, Grafton, Milwaukee, 
Racine, and Kenosha
857 PM CST Fri Jan 12 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 2 to 4 
  inches. Winds gusting as high as 40 mph.

* WHERE...Ozaukee, Milwaukee, Racine and Kenosha Counties.

* WHEN...Until noon CST Saturday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
949 
WWUS43 KMKX 130855
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
255 AM CST Sat Jan 13 2024

WIZ051-052-131700-
/O.CAN.KMKX.WS.W.0003.240113T0900Z-240113T1800Z/
/O.NEW.KMKX.WW.Y.0002.240113T0900Z-240113T1800Z/
/O.EXP.KMKX.BZ.W.0001.000000T0000Z-240113T0900Z/
/O.NEW.KMKX.WC.Y.0001.240114T0900Z-240114T1800Z/
Fond du Lac-Sheboygan-
Including the cities of Fond Du Lac, Plymouth, Sheboygan Falls, 
Howards Grove, and Oostburg
255 AM CST Sat Jan 13 2024

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...WIND CHILL ADVISORY IN EFFECT FROM 3 AM TO NOON CST SUNDAY...
...BLIZZARD WARNING WILL EXPIRE AT 3 AM CST EARLY THIS MORNING...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...For the Winter Weather Advisory, light snow, patchy
  blowing snow and drifting expected. New snow accumulations up 
  to one inch. Winds gusting as high as 30 to 35 mph. For the Wind
  Chill Advisory, very cold wind chills expected. Wind chills as 
  low as 20 below zero.

* WHERE...Fond du Lac and Sheboygan Counties.

* WHEN...For the Winter Weather Advisory, until noon CST today. 
  For the Wind Chill Advisory, from 3 AM to noon CST Sunday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The cold wind 
  chills could cause frostbite on exposed skin in as little as 
  30 minutes.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ046-047-056>059-062>065-067>070-131700-
/O.NEW.KMKX.WW.Y.0002.240113T0900Z-240113T1800Z/
/O.NEW.KMKX.WC.Y.0001.240114T0900Z-240114T1800Z/
/O.EXT.KMKX.WS.W.0002.000000T0000Z-240113T0900Z/
Marquette-Green Lake-Sauk-Columbia-Dodge-Washington-Iowa-Dane-
Jefferson-Waukesha-Lafayette-Green-Rock-Walworth-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Baraboo, Reedsburg, 
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin, 
Lodi, Beaver Dam, Waupun, Mayville, West Bend, Germantown, 
Hartford, Dodgeville, Mineral Point, Barneveld, Madison, 
Watertown, Fort Atkinson, Jefferson, Waukesha, Brookfield, 
New Berlin, Menomonee Falls, Muskego, Darlington, Shullsburg, 
Benton, Belmont, Argyle, Blanchardville, Monroe, Brodhead, 
Janesville, Beloit, Whitewater, Delavan, Elkhorn, Lake Geneva, 
and East Troy
255 AM CST Sat Jan 13 2024

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...WIND CHILL ADVISORY IN EFFECT FROM 3 AM TO NOON CST SUNDAY...

* WHAT...For the Winter Weather Advisory, light snow, patchy
  blowing snow, drifting expected. New snow accumulations of up to
  one inch. Winds gusting as high as 30 to 35 mph. For the Wind
  Chill Advisory, very cold wind chills expected. Wind chills as
  low as 25 below to 30 below zero.

* WHERE...Portions of south central and southeast Wisconsin.

* WHEN...For the Winter Weather Advisory, until noon CST today. 
  For the Wind Chill Advisory, from 3 AM to noon CST Sunday.

* IMPACTS...Plan on slippery road conditions. The cold wind 
  chills could cause frostbite on exposed skin in as little as 
  30 minutes.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. Prepare for possible power
outages. 

Slow down and use caution while traveling. 

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ060-066-071-072-131700-
/O.NEW.KMKX.WW.Y.0002.240113T0900Z-240113T1800Z/
/O.NEW.KMKX.WC.Y.0001.240114T0900Z-240114T1800Z/
/O.EXT.KMKX.WS.W.0002.000000T0000Z-240113T0900Z/
Ozaukee-Milwaukee-Racine-Kenosha-
Including the cities of Mequon, Cedarburg, Grafton, Milwaukee, 
Racine, and Kenosha
255 AM CST Sat Jan 13 2024

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...WIND CHILL ADVISORY IN EFFECT FROM 3 AM TO NOON CST SUNDAY...

* WHAT...For the Winter Weather Advisory, light snow, patchy
  blowing snow, drifting expected. New snow accumulations of up to
  one inch. Winds gusting as high as 35 mph. For the Wind Chill 
  Advisory, very cold wind chills expected. Wind chills as low as 
  20 below to 25 below zero.

* WHERE...Ozaukee, Milwaukee, Racine and Kenosha Counties.

* WHEN...For the Winter Weather Advisory, until noon CST today. 
  For the Wind Chill Advisory, from 3 AM to noon CST Sunday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The cold wind 
  chills could cause frostbite on exposed skin in as little as 
  30 minutes.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. Prepare for possible power
outages. 

Slow down and use caution while traveling. 

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

What forecasters said that day

The local office's own words before this blizzard warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Milwaukee, WI wrote its last area forecast discussion before this blizzard warning went out at Jan 12, 10:40 AM CST, 3 hours 30 minutes earlier. Its key messages:

  • A winter storm will continue bring periods of impactful snowfall this morning into Saturday morning. Strong winds will result in blowing/drifting of snow that will reduce visibilities. Near blizzard conditions are possible. Lower snow amounts are likely along the lakeshore.
  • Confidence is high in an arctic airmass moving into the region Saturday night through the middle of next week. This will deliver the coldest temperatures of the season with bitter wind chills.
Area forecast discussion, Jan 12, 10:40 AM CST, 3 hours 30 minutes before
Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
1040 AM CST Fri Jan 12 2024

.KEY MESSAGES...

- A winter storm will continue bring periods of impactful
  snowfall this morning into Saturday morning. Strong winds will
  result in blowing/drifting of snow that will reduce
  visibilities. Near blizzard conditions are possible. Lower
  snow amounts are likely along the lakeshore.

- Confidence is high in an arctic airmass moving into the region
  Saturday night through the middle of next week. This will
  deliver the coldest temperatures of the season with bitter
  wind chills.

&&

.UPDATE...
Issued 1040 AM CST Fri Jan 12 2024

After looking through models and observations this morning,
there are a few things of note with the ongoing winter storm.
Models were showing a rain/snow mix or transition to rain for
lakeshore areas for a time today, but not seeing this in any of
the latest short term guidance this morning. Accumulations are
struggling lakeside as expected though, with snow to liquid
ratios around 5 to 1 through mid-morning. Also, there was a
concern for some mid level dry air causing a significant drop in
snowfall rates this afternoon, but the bulk of model soundings
now show deep saturation throughout the event. Additionally,
this morning round of snow with the warm air advection has been
very impressive, with just over 6 inches of snow at the office
here by 9:45 am. Model QPF has stayed the course, if not nudged
up a tad higher compared to 24 hours ago. No real surprise with
the low track so far this morning, though a couple high res
models want to take the low almost to the WI/IL state line,
which would bring a dry slot into the south. Leaning away from
this though given the bulk of guidance and latest obs.

The highest widespread snowfall rates for this storm are still
expected to be through the morning hours with the strong warm
air advection. The higher rates may continue east into the
afternoon away from the lakeshore due to the lake enhancement.
Though many areas may not see 1-2" an hour rates this afternoon,
steady accumulating snowfall is expected to persist.

In all, it looks like this system is heading towards the higher
end of our forecasted ranges, with increasing confidence
locations could reach the foot mark. Still looks like the
highest QPF will be in the east closer to the track of the low,
with a boost from lake enhancement likely too. Though rates will
struggle along the lake through this afternoon, snow amounts are
expected to be significantly higher farther inland.

Mentioned near blizzard conditions in the update to the warning
this morning. Still not confident enough in sustained and
widespread blizzard conditions to upgrade to a Blizzard Warning. The
snow will be drier and easier to blow in the west, but winds
aren't expected to be quite as strong there. The winds are
stronger east, but the snow is wetter due to the milder temps
and will be more difficult to blow around. The snow will turn
more powdery across the area this evening into tonight, though
snowfall rates will gradually decrease overnight. Regardless of
whether we hit blizzard criteria or not, travel will be very
difficult due to the high snowfall rates, reducing visibility
and keeping roads snow covered.

DDV

&&

.SHORT TERM...
Issued 530 AM CST Fri Jan 12 2024

Today through Saturday:

Lgt to mdt snow via a strong surge of 850-700 mb warm, moist
advection and frontogenesis is now overspreading srn WI from nrn
IL. Mdt to heavy snow will continue to develop early this AM as
it shifts nwd and is supported aloft by PVA and the right
entrance region of an upper jet.

A 995 MB sfc low over srn MO is then expected to deepen to 978
MB as it moves to ne IN by 00Z Sat. The main catalyst for this
deepening is the strong upper wave over TX that will lift newd
on a swly 150 kt jet streak. Occlusion will occur tnt as the sfc
low slows and moves to wrn Lake Huron by 12Z Sat. The shortwave
trough currently over the central Great Plains will move ewd and
become absorbed by the occlusion, but provide PVA and continued
lift to srn WI. The strong enely winds in response to the
deepening low will contribute to frictional convergence and lake
enhanced snow for the lake counties, including Washington and
Jefferson Counties today through this evening. Thus the highest
qpf of 1.30-1.60 inches is located over this area with 0.85-1.05
inches well inland and over south central WI into Saturday. A
rain and snow mixture is likely at the lakefront and could move
slightly inland this afternoon, but overall more snow will occur
than the storm a few days ago. Snow accums of 3-6 inches at the
lakefront and 7-13 inches elsewhere over srn WI. A wet to
neutral snow ratio will limit the blowing and drifting, but it
will increase late today and tnt as winds back to nly and temps
cool. Will have to watch for potential blizzard conditions
toward east central WI where wind gusts will be the strongest
and steadier snow tnt due to its closer proximity to the
occlusion.

Gehring

&&

.LONG TERM...
Issued 530 AM CST Fri Jan 12 2024

Saturday night through Thursday:

Light snow chances will continue Sat nt-Sun, but bitterly cold
arctic air will prevail for much of this period. Wind Chill
Advisories will likely be needed.

Gehring

&&

.AVIATION...
Issued 1040 AM CST Fri Jan 12 2024

Moderate to heavy snow will continue into early this afternoon
across the area, with 1/4 to 1/2 mile visibility at times.
Snowfall rates of 1 inch per hour or greater are possible, except
for terminals near the lake where milder temperatures will limit
rates and slushy snow should occur. Gusty east northeast winds
will continue as well, with ceilings around 500 feet AGL.

There may be a lull in the intensity of the snow this afternoon at
times, especially near the lake with the milder temperatures.
Still expect generally moderate snow with visibility of 1/2 to 1
mile, perhaps higher values near the lake. Snow rates should be
1/2 to 1 inch per hour, perhaps higher in localized heavier
bands. Gusty winds will gradually shift to the northeast by late
afternoon and early evening. Ceilings should remain around 500
feet AGL or so.

Moderate snow with 1/2 to 1 mile visibility should linger this
evening, before becoming light and 1 to 2 miles or so later
tonight. On and off light snow showers should remain on Saturday.
Snowfall rates should be 1/4 to 1/2 inch per hour tonight,
locally higher, with up to 1/4 inch per hour rates with any light
snow showers on Saturday. Ceilings should gradually rise from 500
to around 1500 feet AGL tonight into Saturday.

Gusty winds will become stronger tonight into Saturday, as they
back from the northeast to northwest tonight and west on Saturday.
This will bring more impacts from blowing and drifting snow, as
temperatures drop and the snow composition becomes more fluffy.
May see visibility reductions to 1 mile or less at times with the
blowing and drifting snow tonight into Saturday.

Wood

&&

.MARINE...
Issued 530 AM CST Fri Jan 12 2024

A strong low pressure system around 29.4 inches over northwest
Arkansas early this morning will move into northeast Indiana and
strengthen to around 28.9 inches by early this evening. The low
will move across Lower Michigan and into Lake Huron tonight into
Saturday, before shifting further northeast Saturday night.

This strong low will bring gales to the open waters of Lake Michigan
today into Saturday, lingering across the southern half of the
lake into Saturday night. Gale Warnings are in effect.

Storm force gusts are expected over the northern half of the lake
later this afternoon and evening, where a Storm Warning is in
effect. These winds will result in substantial waves across the
lake today into Saturday night.

Gusty west to northwest winds and much colder temperatures Sunday
into next week will bring freezing spray across the entire lake.

Gehring

&&

.MKX WATCHES/WARNINGS/ADVISORIES...
WI...Winter Storm Warning...WIZ046-WIZ047-WIZ051-WIZ052-WIZ056-
     WIZ057-WIZ058-WIZ059-WIZ060-WIZ062-WIZ063-WIZ064-WIZ065-
     WIZ066-WIZ067-WIZ068-WIZ069-WIZ070-WIZ071-WIZ072 until
     noon Saturday.

LM...Gale Warning...LMZ080-LMZ567-LMZ669-LMZ671-LMZ673-LMZ675-
     LMZ777-LMZ779-LMZ868-LMZ870-LMZ872-LMZ874-LMZ876-LMZ878
     until 6 AM Sunday.

     Gale Warning...LMZ261-LMZ362-LMZ364-LMZ366-LMZ563-LMZ565 until
     3 PM Friday.

     Gale Warning...LMZ261-LMZ362-LMZ364-LMZ366-LMZ563-
     LMZ565...midnight Saturday to noon Saturday.

     Storm Warning...LMZ261-LMZ362-LMZ364-LMZ366-LMZ563-LMZ565...3
     PM Friday to midnight Saturday.

     Gale Warning...LMZ643-LMZ644-LMZ645-LMZ646 until 6 PM Saturday.

&&

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Hazardous weather outlook, Jan 12, 5:27 AM CST, 8 hours 43 minutes before
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
527 AM CST Fri Jan 12 2024

WIZ046-047-051-052-056>060-062>072-131130-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
527 AM CST Fri Jan 12 2024

This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.

.DAY ONE...Today and Tonight

Snow has begun to overspread the region this morning and will
continue to lift north through the morning, creating hazardous
driving conditions heading into the morning commute. Into this
afternoon we may see a lull in heavier snow but will pick up in
the evening again, especially near the lake as lake enhancement
will dominate. In addition winds will pick up later this afternoon
into this evening. See the latest Winter Storm Warnings for the
most up to date information.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Snow showers through the day on Saturday. Blowing and drifting
snow is likely at times through Sunday in addition so light snow
accumulations. A Winter Storm Warning is in effect for the entire
outlook area through mid day Saturday.

A period of bitter cold wind chills and cold temperatures is
expected Saturday night into early next week. Wind chills between
25 and 30 degrees blow zero are likely during the overnight hours
from Saturday night through Tuesday night.

.SPOTTER INFORMATION STATEMENT...

Snowfall reports will be appreciated this week.

LMZ643>646-131130-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
527 AM CST Fri Jan 12 2024

This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.

.DAY ONE...Today and Tonight

Winds and waves will build today within the nearshore. A Gale
Warning is in effect starting at 6am this morning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Widespread gales to 40 knots are expected through Saturday.
Elevated winds and waves are then expected for much of the coming
week, as very cold air filters through the region. Freezing spray
will be possible at times as well.

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-131130-
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
527 AM CST Fri Jan 12 2024

This Hazardous Weather Outlook is for the open waters of Lake Michigan.

.DAY ONE...Today and Tonight

East to northeast gales to 45 knots are expected to develop
this morning, with winds then reaching storm force over the
northern half of the lake this afternoon and evening. Winds will
gradually turn today into tonight to the north to northwest.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

North to northwest gales are anticipated through Saturday night.

Moderate freezing spray is likely starting Saturday and
continuing into the middle portion of next week.

www.weather.gov/mkx

In the hours before

Local storm report, Jan 12, 1:37 PM CST, 33 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
137 PM CST Fri Jan 12 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0106 PM     Snow             2 NNE Twin Lakes        42.55N 88.24W
01/12/2024  M6.5 inch        Kenosha            WI   Public

&&
Local storm report, Jan 12, 1:45 PM CST, 25 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
145 PM CST Fri Jan 12 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0138 PM     Snow             1 NE Germantown         43.25N 88.11W
01/12/2024  M7.5 inch        Washington         WI   Public

&&

MRC
Local storm report, Jan 12, 1:51 PM CST, 19 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
151 PM CST Fri Jan 12 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0100 PM     Snow             3 NNW Brookfield        43.10N 88.14W
01/12/2024  M8.5 inch        Waukesha           WI   Public

            fROM SOCIAL MEDIA.

&&
Local storm report, Jan 12, 1:54 PM CST, 16 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
154 PM CST Fri Jan 12 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0100 PM     Snow             1 SE Menomonee Falls    43.13N 88.10W
01/12/2024  M9.7 inch        Waukesha           WI   Public

            Still snowing heavily. From social media.

&&
Local storm report, Jan 12, 1:56 PM CST, 14 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
156 PM CST Fri Jan 12 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0100 PM     Snow             Twin Lakes              42.53N 88.26W
01/12/2024  E8.0 inch        Kenosha            WI   Public

            From social media.

&&
Local storm report, Jan 12, 2:03 PM CST, 7 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
203 PM CST Fri Jan 12 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1200 PM     Snow             2 N Oconomowoc          43.13N 88.49W
01/12/2024  M7.1 inch        Waukesha           WI   NWS Employee

            7.1 of snowfall since onset. 12 total depth.

&&

The office that day

Everything else NWS Milwaukee, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 12, 2:10 PM CSTWinter Storm WarningMKXFond du Lac, Sheboygan13 hr

Nearby

Blizzard Warnings in Wisconsin, 2024Every blizzard warning in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.