Alert archive / Wisconsin / Wind Chill Advisories in 2022

Wind Chill Advisory 13, NWS Green Bay, WI

December 24, 202214 counties in Wisconsin

NWS Green Bay, WI issued this wind chill advisory at Dec 24, 2022, 11:59 AM CST for 14 counties in Wisconsin. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued
Dec 24, 2022, 11:59 AM CST (17:59 UTC)
Expired
Dec 25, 2022, 10:00 AM CST
In force
22 hr
Issued by
NWS Green Bay, WI

Counties Brown County, WI, Calumet County, WI, Langlade County, WI, Lincoln County, WI, Manitowoc County, WI, Marathon County, WI, Menominee County, WI, Outagamie County, WI, Portage County, WI, Shawano County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 64 km from the middle of the area, began a volume at 18:03 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.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 6.0 hours before the alert went out and 65 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 2022-12-24Temperature 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 2022-12-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 383 square meters per square second.1939587897Sfc1 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
865 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
383 m²/s²
0-3 km storm-relative helicity
328 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

203 
WWUS43 KGRB 241759
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
1159 AM CST Sat Dec 24 2022

WIZ018>020-030-031-035>038-045-048>050-250200-
/O.NEW.KGRB.WC.Y.0013.221224T1800Z-221225T1800Z/
/O.CAN.KGRB.WW.Y.0025.000000T0000Z-221225T0000Z/
Lincoln-Langlade-Menominee-Marathon-Shawano-Wood-Portage-Waupaca-
Outagamie-Waushara-Winnebago-Calumet-Manitowoc-
Including the cities of Manitowoc, Marshfield, Oshkosh, Keshena,
Redgranite, New London, Stevens Point, Antigo, Clintonville,
Wautoma, Menasha, Chilton, Brillion, Neenah, Neopit, Tomahawk,
Shawano, Wausau, Appleton, Two Rivers, New Holstein, Merrill,
Waupaca, Plover, and Wisconsin Rapids
1159 AM CST Sat Dec 24 2022

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST SUNDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

* WHAT...Very cold wind chills. Wind chills as low as 25 below zero.

* WHERE...Portions of central, east central, north central, and 
  northeast Wisconsin.

* WHEN...Until Noon CST Sunday.

* IMPACTS...Frostbite and hypothermia are possible if precautions 
  are not taken. The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Travel conditions may continue to be 
  hazardous along more rural highways and along open fields as 
  blowing and drifting snow may blow already-plowed snow back onto 
  roadways.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WIZ013-021-022-039-040-073-074-241900-
/O.CAN.KGRB.WW.Y.0025.000000T0000Z-221225T0000Z/
Northern Marinette County-Northern Oconto County-Door-Brown-
Kewaunee-Southern Marinette County-Southern Oconto County-
Including the cities of Little Suamico, Pensaukee, Oconto,
Brookside, Peshtigo, Wausaukee, High Falls Reservoir, Harmony,
Niagara, Green Bay, Porterfield, Townsend, Middle Inlet,
Sobieski, Mountain, Crivitz, Luxemburg, Fish Creek, Lakewood,
Kewaunee, Sturgeon Bay, Sister Bay, and Loomis
1159 AM CST Sat Dec 24 2022

...WINTER WEATHER ADVISORY IS CANCELLED...

Travel conditions may continue to be hazardous along more rural 
highways and along open fields as blowing and drifting snow may blow 
already-plowed snow back onto roadways.

$$

WIZ005-250200-
/O.CON.KGRB.WS.W.0011.000000T0000Z-221225T0000Z/
/O.EXB.KGRB.WW.Y.0025.221225T0000Z-221225T1200Z/
Vilas-
Including the cities of Eagle River and Lac Du Flambeau
1159 AM CST Sat Dec 24 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS 
EVENING...
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM 
CST SUNDAY...

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow 
  accumulations between 1 and 3 inches. Winds gusting as high as 40 
  mph. For the Winter Weather Advisory, snow expected. Total snow 
  accumulations up to one inch. Winds gusting as high as 35 mph.

* WHERE...Vilas County.

* WHEN...For the Winter Storm Warning, until 6 PM CST this evening. 
  For the Winter Weather Advisory, from 6 PM this evening to 6 AM 
  CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

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.

&&

$$

WIZ010>012-250200-
/O.EXT.KGRB.WW.Y.0025.000000T0000Z-221225T1200Z/
Oneida-Forest-Florence-
Including the cities of Crandon, Commonwealth, Spread Eagle,
Rhinelander, and Aurora
1159 AM CST Sat Dec 24 2022

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM CST SUNDAY...

* WHAT...Snow. Additional snow accumulations up to two inches. Winds 
  gusting as high as 45 mph.

* WHERE...Oneida, Florence, and Forest Counties.

* WHEN...Until 6 AM CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

For more information, visit us at http://www.weather.gov/GreenBay

Kotenberg
5 follow-up statements
363 
WWUS43 KGRB 242056
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
256 PM CST Sat Dec 24 2022

WIZ005-250500-
/O.CON.KGRB.WS.W.0011.000000T0000Z-221225T0000Z/
/O.CON.KGRB.WW.Y.0025.221225T0000Z-221225T1200Z/
Vilas-
Including the cities of Eagle River and Lac Du Flambeau
256 PM CST Sat Dec 24 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS 
EVENING...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING 
TO 6 AM CST SUNDAY...

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow 
  accumulations up to one inch. Winds gusting as high as 40 mph. For 
  the Winter Weather Advisory, snow expected. Total snow 
  accumulations up to one inch. Winds gusting as high as 35 mph.

* WHERE...Vilas County.

* WHEN...For the Winter Storm Warning, until 6 PM CST this evening. 
  For the Winter Weather Advisory, from 6 PM this evening to 6 AM 
  CST Sunday.

* IMPACTS...Plan on slippery road conditions. Widespread 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.

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

WIZ039-250500-
/O.EXA.KGRB.WC.Y.0013.000000T0000Z-221225T1800Z/
Brown-
Including the cities of Green Bay
256 PM CST Sat Dec 24 2022

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST SUNDAY...

* WHAT...Very cold wind chills. Wind chills as low as 20 below zero.

* WHERE...Brown County.

* WHEN...Until Noon CST Sunday.

* IMPACTS...Frostbite and hypothermia are possible if precautions 
  are not taken. The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Travel conditions may continue to be 
  hazardous along more rural highways and along open fields as 
  blowing and drifting snow may blow already-plowed snow back onto 
  roadways.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WIZ010>012-250500-
/O.CON.KGRB.WW.Y.0025.000000T0000Z-221225T1200Z/
Oneida-Forest-Florence-
Including the cities of Spread Eagle, Commonwealth, Aurora,
Crandon, and Rhinelander
256 PM CST Sat Dec 24 2022

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY...

* WHAT...Snow. Additional snow accumulations up to one inch. Winds 
  gusting as high as 40 mph.

* WHERE...Oneida, Florence, and Forest Counties.

* WHEN...Until 6 AM CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

WIZ018>020-030-031-035>038-045-048>050-250500-
/O.CON.KGRB.WC.Y.0013.000000T0000Z-221225T1800Z/
Lincoln-Langlade-Menominee-Marathon-Shawano-Wood-Portage-Waupaca-
Outagamie-Waushara-Winnebago-Calumet-Manitowoc-
Including the cities of Two Rivers, Marshfield, Neopit, Keshena,
Menasha, Waupaca, Chilton, Clintonville, Redgranite, Merrill,
Plover, Neenah, New London, Shawano, New Holstein, Stevens Point,
Appleton, Wautoma, Oshkosh, Wausau, Tomahawk, Wisconsin Rapids,
Antigo, Brillion, and Manitowoc
256 PM CST Sat Dec 24 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST SUNDAY...

* WHAT...Very cold wind chills. Wind chills as low as 25 below zero.

* WHERE...Portions of central, east central, north central, and 
  northeast Wisconsin.

* WHEN...Until Noon CST Sunday.

* IMPACTS...Frostbite and hypothermia are possible if precautions 
  are not taken. The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Travel conditions may continue to be 
  hazardous along more rural highways and along open fields as 
  blowing and drifting snow may blow already-plowed snow back onto 
  roadways.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

For more information, visit us at http://www.weather.gov/GreenBay

Kotenberg
512 
WWUS43 KGRB 250358
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
958 PM CST Sat Dec 24 2022

WIZ005-251200-
/O.CON.KGRB.WW.Y.0025.000000T0000Z-221225T1200Z/
Vilas-
Including the cities of Eagle River and Lac Du Flambeau
958 PM CST Sat Dec 24 2022

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY...

* WHAT...Snow showers. Additional snow accumulations around an inch. 
  Winds gusting as high as 35 mph producing blowing and drifting 
  snow, and wind chills to 25 below zero.

* WHERE...Vilas County.

* WHEN...Until 6 AM CST Sunday.

* IMPACTS...Roads will be slippery. Travel with care. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Dress warmly if you will be outdoors. 

&&

$$

WIZ010>012-251200-
/O.CON.KGRB.WW.Y.0025.000000T0000Z-221225T1200Z/
Oneida-Forest-Florence-
Including the cities of Commonwealth, Rhinelander, Crandon,
Spread Eagle, and Aurora
958 PM CST Sat Dec 24 2022

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY...

* WHAT...Winds gusting to 35 mph will produce blowing and drifting 
  snow and wind chills to 25 below zero.

* WHERE...Oneida, Florence, and Forest Counties.

* WHEN...Until 6 AM CST Sunday.

* IMPACTS...Plan on slippery road conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Dress warmly if you will be outdoors. 

&&

$$

WIZ018>020-030-031-035>039-045-048>050-251200-
/O.CON.KGRB.WC.Y.0013.000000T0000Z-221225T1800Z/
Lincoln-Langlade-Menominee-Marathon-Shawano-Wood-Portage-Waupaca-
Outagamie-Brown-Waushara-Winnebago-Calumet-Manitowoc-
Including the cities of Neenah, Antigo, Wausau, Wautoma,
Appleton, Shawano, Green Bay, Oshkosh, New London, Waupaca,
Merrill, Tomahawk, Stevens Point, Marshfield, Brillion,
Clintonville, Two Rivers, Keshena, Menasha, Redgranite, Plover,
Manitowoc, Wisconsin Rapids, Chilton, New Holstein, and Neopit
958 PM CST Sat Dec 24 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST SUNDAY...

* WHAT...Very cold wind chills. Wind chills as low as 25 below zero.

* WHERE...Portions of central, east central, north central, and 
  northeast Wisconsin.

* WHEN...Until Noon CST Sunday.

* IMPACTS...Frostbite and hypothermia are possible if precautions 
  are not taken. The dangerously cold wind chills 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.

&&

$$

For more information, visit us at http://www.weather.gov/GreenBay

RDM
912 
WWUS43 KGRB 251007
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
407 AM CST Sun Dec 25 2022

WIZ018>020-030-031-035>039-045-048>050-251600-
/O.EXT.KGRB.WC.Y.0013.000000T0000Z-221225T1600Z/
Lincoln-Langlade-Menominee-Marathon-Shawano-Wood-Portage-Waupaca-
Outagamie-Brown-Waushara-Winnebago-Calumet-Manitowoc-
Including the cities of Chilton, Clintonville, Green Bay, Neenah,
Wausau, New London, Brillion, New Holstein, Appleton, Plover,
Keshena, Menasha, Two Rivers, Tomahawk, Wisconsin Rapids, Stevens
Point, Shawano, Antigo, Redgranite, Manitowoc, Oshkosh,
Marshfield, Neopit, Waupaca, Wautoma, and Merrill
407 AM CST Sun Dec 25 2022

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 10 AM CST THIS MORNING...

* WHAT...Very cold. Wind chills of 15 below to  25 below zero.

* WHERE...Portions of central, east central, north central, and 
  northeast Wisconsin.

* WHEN...Until 10 AM CST this morning.

* IMPACTS...The combination of wind and cold will result in 
  hazardous conditions for anyone outdoors without appropriate 
  winter clothing. Exposed skin can suffer frostbite in as little as 
  30 minutes in these conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Wear appropriate clothing if you are going to be outdoors, including 
a hat, and gloves or mittens.

&&

$$

WIZ005-251200-
/O.CON.KGRB.WW.Y.0025.000000T0000Z-221225T1200Z/
Vilas-
Including the cities of Lac Du Flambeau and Eagle River
407 AM CST Sun Dec 25 2022

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY 
THIS MORNING...

* WHAT...Winds gusting to 25 mph producing areas of blowing and 
  drifting snow. Scattered snow showers will up to an inch or so of 
  additional accumulation possible in the snowbelt.

* WHERE...Vilas County.

* WHEN...Until 6 AM CST early this morning.

* IMPACTS...Hazardous travel conditions, especially in open areas 
  where the visibility will be reduced at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling, especially in open areas. The latest 
road conditions can be obtained by calling 5 1 1.

&&

$$

WIZ010>012-251200-
/O.CON.KGRB.WW.Y.0025.000000T0000Z-221225T1200Z/
Oneida-Forest-Florence-
Including the cities of Aurora, Rhinelander, Commonwealth, Spread
Eagle, and Crandon
407 AM CST Sun Dec 25 2022

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY 
THIS MORNING...

* WHAT...Winds gusting to 30 mph producing areas of blowing and 
  drifting snow.

* WHERE...Oneida, Florence, and Forest Counties.

* WHEN...Until 6 AM CST early this morning.

* IMPACTS...Hazardous travel conditions, especially in open areas 
  where the visibility will be reduced at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling, especially in open areas. The latest 
road conditions can be obtained by calling 5 1 1.

&&

$$

For more information, visit us at http://www.weather.gov/GreenBay
711 
WWUS43 KGRB 251223
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
623 AM CST Sun Dec 25 2022

WIZ005-010>012-251330-
/O.EXP.KGRB.WW.Y.0025.000000T0000Z-221225T1200Z/
Vilas-Oneida-Forest-Florence-
Including the cities of Aurora, Rhinelander, Eagle River, Lac Du
Flambeau, Commonwealth, Spread Eagle, and Crandon
623 AM CST Sun Dec 25 2022

...WINTER WEATHER ADVISORY HAS EXPIRED...

Scattered snow showers will continue in the Lake Superior snowbelt, 
and patchy blowing and drifting snow and flurries will continue 
across the area. But a gradual improvement in conditions is 
anticipated, so the Winter Weather Advisory has been allowed to 
expire.

$$

WIZ018>020-030-031-035>039-045-048>050-251600-
/O.CON.KGRB.WC.Y.0013.000000T0000Z-221225T1600Z/
Lincoln-Langlade-Menominee-Marathon-Shawano-Wood-Portage-Waupaca-
Outagamie-Brown-Waushara-Winnebago-Calumet-Manitowoc-
Including the cities of Chilton, Clintonville, Green Bay, Neenah,
Wausau, New London, Brillion, New Holstein, Appleton, Plover,
Keshena, Menasha, Two Rivers, Tomahawk, Wisconsin Rapids, Stevens
Point, Shawano, Antigo, Redgranite, Manitowoc, Oshkosh,
Marshfield, Neopit, Waupaca, Wautoma, and Merrill
623 AM CST Sun Dec 25 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM CST THIS 
MORNING...

* WHAT...Very cold. Wind chills of 15 below to  25 below zero.

* WHERE...Portions of central, east central, north central, and 
  northeast Wisconsin.

* WHEN...Until 10 AM CST this morning.

* IMPACTS...The combination of wind and cold will result in 
  hazardous conditions for anyone outdoors without appropriate 
  winter clothing. Exposed skin can suffer frostbite in as little as 
  30 minutes in these conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Wear appropriate clothing if you are going to be outdoors, including 
a hat, and gloves or mittens.

&&

$$

For more information, visit us at http://www.weather.gov/GreenBay
032 
WWUS43 KGRB 251553
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
953 AM CST Sun Dec 25 2022

WIZ018>020-030-031-035>039-045-048>050-251700-
/O.EXP.KGRB.WC.Y.0013.000000T0000Z-221225T1600Z/
Lincoln-Langlade-Menominee-Marathon-Shawano-Wood-Portage-Waupaca-
Outagamie-Brown-Waushara-Winnebago-Calumet-Manitowoc-
Including the cities of Keshena, Shawano, Tomahawk, Stevens
Point, Redgranite, Clintonville, Wautoma, Appleton, Waupaca, New
Holstein, Menasha, Plover, Wausau, Wisconsin Rapids, Neopit,
Green Bay, New London, Neenah, Merrill, Brillion, Two Rivers,
Marshfield, Antigo, Manitowoc, Chilton, and Oshkosh
953 AM CST Sun Dec 25 2022

...WIND CHILL ADVISORY WILL EXPIRE AT 10 AM CST THIS MORNING...

The coldest wind chills have ended, but a few spots in central WI 
may still see wind chills to around -20 through noon.

$$

For more information, visit us at http://www.weather.gov/GreenBay

Uhlmann

What forecasters said that day

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

NWS Green Bay, WI wrote its last area forecast discussion before this wind chill advisory went out at Dec 24, 5:42 AM CST, 6 hours 17 minutes earlier.

Area forecast discussion, Dec 24, 5:42 AM CST, 6 hours 17 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Green Bay WI
542 AM CST Sat Dec 24 2022

Updated to add short term portion for morning forecast issuance

.SYNOPSIS...
Issued at 536 AM CST Sat Dec 24 2022

Heavy snow showers in the Lake Superior Snowbelt today. Elsewhere,
still windy and cold with blowing and drifting snow, especially
in open areas. A chance for snow Christmas night, then warmer
next week.

The mid-latitude upper flow across NOAM consisted of a rather
broad ridge out west and an eastern trough comprised of the deep
vortex that wrapped up out of the intense cyclone that brought the
winter storm conditions to the area the past couple days. The
trough will linger for a few days before weakening. That will
allow the westerlies across the CONUS to trend toward a southern-
stream dominated split flow regime during the final days of 2022.

Cold conditions will persist through Monday, then temperatures
will quickly warm to above normal. Once in place, the milder
weather will probably be around for a little while. Precipitation
for the period will depend primarily on what occurs with a
southern stream cyclone late in the period. Given that the limited
opportunity for substantial precipitation and the uncertainty in
the track of the system so far out, the best estimate is for AOB
normal amounts.
&&

.SHORT TERM...Today...Tonight...and Sunday
Issued at 536 AM CST Sat Dec 24 2022

Land-based headlines were left unchanged with the morning
forecast issuance.

Winds were not quite as strong as anticipated yesterday. That was
probably due to slightly weaker winds above the surface than
originally forecast, and colder surface temperatures which
resulted in a bit more stability from the boundary layer up into
the low-levels of the free atmosphere. But a strong surface
pressure gradient will remain across the area today, and 850 mb
winds of 45-55 kts will be overhead all day. Although some of the
loose snow has probably settled into drifts, feel the winds will
still be sufficient to generate enough blowing and drifting snow
for open areas to experience a significant reduction in
visibility, and to warrant keeping the WW.Y in effect today. In
addition, roads have a tendency to ice over after being plowed
when drifting snow brings a thin layer of fresh snow over the
pavement which gets packed down by passing vehicles.

Wind chills were currently meeting advisory criteria (<= -20) over
about the WSW 1/3 of the forecast area. That should continue into
early afternoon and will wrap that hazard into the ongoing WW.Y.
After a short respite, wind chills will head back down this
evening. The latest forecast calls for wind chills of -20 to -25
over central WI from mid-evening through mid-morning Sunday. A
large area farther N and E has the WCI bottom out around -20, with
less harsh conditions in the far NE and lakeshore areas. So we
will likely need a WC.Y for at least central WI. But there is a
lot of uncertainty over exactly how much of the rest of the area
it will need to cover. Given that, and the ongoing headline for
the blowing and drifting snow, opted to forego issuing the WC.Y
with the morning issuance. This will also help keep the focus on
the hazardous travel conditions in open areas today, and allow the
next shift the benefit of basing the headline on updated
temperature and wind forecasts.

The other short-term issue is actually much more significant. Very
impressive lake-effect snows continue in Vilas county. KD25 has
been AOB 1/2SM most of the night, though some of that was likely
due to blowing snow. Still, obs from the 4 METAR sites in Vilas
county suggest travel must be very difficult in that area. Air
parcel trajectories and thermodynamics will remain favorable for
LES through tonight and possibly into Sunday. But the inversion
height will gradually lower, and that should be what finally
results in a decrease in the SHSN. Running the WS.W through 00Z
looked good. Might need something after that, but perhaps a WW.Y
might be sufficient. Again, the next shift will be a much better
position to make that decision.

.LONG TERM...Sunday Night Through Friday
Issued at 322 AM CST Sat Dec 24 2022

The main story for the long term portion of the forecast will be
the transitions from bitter cold Monday and Tuesday with
temperatures climbing well above normal levels for the latter
half of next week. Some locations could actually warm into the
40s!

The clipper system that was advertised to pass well south of the
area Sunday night has shifted to the north on the model
runs tonight. Have trended toward the ECMWF/Canadian model
solution as the GFS trended even further north. Snow chances
were increased moderately for now since the models could shift
the system south on upcoming model runs. Currently have less
than inch of accumulation based on the ECMWF/Canadian model
solution across central and east-central Wisconsin.

The cold will continue Monday and Tuesday. A warm front will
lift northward across the area Tuesday night into Wednesday.
Precipitation is expected to break out north of the front. Models
have depicted much of the precipitation north of the forecast
area, with only slight chances of precipitation across our
northern counties. Will need to monitor to see if the models
trend southward on the precipitation.

The mild weather is expected to continue Wednesday into the next
weekend. There are many concerns in the Thursday and Friday period
including precipitation types, the potential for fog, and how
mild it can be. For precipitation types, the GFS bufkit is
indicating a warm layer aloft which could cause the precipitation
to be in the form of rain, drizzle, freezing rain or freezing
drizzle or possibly some sleet at times. The cold ground may
be a factor for icing until the ground temperatures warm above
freezing. Also, numerical guidance on both the GFS and ECMWF
indicating dewpoints rising into the 30s Thursday into the
weekend. The combination of the snow pack, cold ground
temperatures, and rising dew points would suggest fog will be
possible at times during this period. It will probably be dense
at times that could impact travel before New Years Day. Lastly,
with a strong inversion present and the potential for fog and low
clouds around, high temperatures on some days may not be reached.
Plenty of time to resolve those issues in the coming days.
&&

.AVIATION...for 12Z TAF Issuance
Issued at 536 AM CST Sat Dec 24 2022

Aviation weather conditions will be better than yesterday, but
drifting snow will probably still be an issue for airport ground
crews. MVFR ceilings are likely at times as well.
&&

.GRB WATCHES/WARNINGS/ADVISORIES...
Winter Storm Warning until 6 PM CST this evening for WIZ005.

Winter Weather Advisory until 6 PM CST this evening for
WIZ010>013-018>022-030-031-035>040-045-048>050-073-074.
&&

SYNOPSIS.......Skowronski
SHORT TERM.....Skowronski
LONG TERM......Eckberg
AVIATION.......Skowronski
Hazardous weather outlook, Dec 24, 4:33 AM CST, 7 hours 26 minutes before
Hazardous Weather Outlook
National Weather Service Green Bay WI
433 AM CST Sat Dec 24 2022

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-251045-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
433 AM CST Sat Dec 24 2022

This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.

.DAY ONE...Today and Tonight

Very difficult travel conditions will continue in the Lake
Superior snowbelt today and possibly into tonight due to heavy
lake effect snow showers and blowing and drifting snow.

Hazardous travel conditions will continue today in open areas
elsewhere, due to blowing and drifting snow.

The combination of cold and wind will result in wind chill indices
of 15 below zero to 25 below zero in central Wisconsin today and
tonight. Wind chills across most of the rest of the area will
range from 5 below to 20 below zero.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

The combination of cold and wind will continue to produce wind
chills of 15 below zero to 25 below zero in central Wisconsin and
5 below to 20 below zero across the rest of the area into the late
morning on Christmas Day.

Hazardous travel is possible Sunday night as a clipper
system could bring light snow to portions of central and
east-central Wisconsin.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to forward snowfall measurements to the
National Weather Service in Green Bay.

LMZ521-522-541>543-251045-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
433 AM CST Sat Dec 24 2022

This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.

.DAY ONE...Today and Tonight

Northwest gales are expected today and tonight. Heavy freezing
spray is also anticipated today.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

The probability for widespread hazardous weather is low.

Skowronski/Eckberg

In the hours before

Special weather statement, Dec 24, 6:10 AM CST, 5 hours 49 minutes before
Special Weather Statement
National Weather Service Green Bay WI
610 AM CST Sat Dec 24 2022

WIZ005-010>012-241700-
Vilas-Oneida-Forest-Florence-
610 AM CST Sat Dec 24 2022

...LAKE-EFFECT SNOW SHOWERS RESULTING IN VERY DIFFICULT TRAVEL
CONDITIONS IN THE SNOWBELT THIS MORNING...

Heavy lake-effect snow showers will continue to move into the
Lake Superior snowbelt this morning. The snow, combined with
blowing and drifting snow generated by northwest winds gusting to
35 mph will result in near blizzard conditions at times, and very
difficult travel conditions. The snow showers will begin to
diminish this afternoon. Lighter snow showers will continue into
tonight.

Travel in the snowbelt will be very difficult at times today,
especially in open areas. If possible, consider postponing travel
until conditions improve.

Farther south and east, from Rhineland through Crandon to near
Iron Mountain, the snow showers will not be as persistent. But
winds will still be strong, so blowing and drifting snow will
affect these areas as well. Use caution while traveling in these
areas, especially in open terrain.

WIZ013-018>022-030-031-035>040-045-048>050-073-074-241700-
Northern Marinette County-Lincoln-Langlade-Menominee-
Northern Oconto County-Door-Marathon-Shawano-Wood-Portage-Waupaca-
Outagamie-Brown-Kewaunee-Waushara-Winnebago-Calumet-Manitowoc-
Southern Marinette County-Southern Oconto County-
610 AM CST Sat Dec 24 2022

...BLOWING AND DRIFTING SNOW WILL CREATE HAZARDOUS TRAVEL
CONDITIONS IN OPEN AREAS TODAY...

Northwest winds gusting to 35 to 40 mph will continue to generate
blowing and drifting snow in open areas today. The impact on
travel in urban and heavily forested areas will be minimal. But
travel through open areas could be much more difficult as the
visibility will be significantly reduced at times. Anyone
traveling today should be especially alert for the possibility of
encountering patches of icy and very slippery pavement in areas
where the wind blows a thin layer of snow back across the road
after snow plows have cleared off the deep snow. Often in these
situations, the thin layer of fresh snow will be packed down by
passing vehicles and polished off into a layer of glare ice.

The core of the coldest air has shifted east of the area. So
although it will still be cold today, temperatures will be 10 to
15 degrees warmer that at the same time yesterday. Wind chill
indices of 15 below to 25 below zero are expected in central
Wisconsin this morning. Wind chills of 10 below to 20 below zero
are anticipated across most of the rest of the area, though
slightly less harsh conditions are expected in far northeast
Wisconsin.

Skowronski
Local storm report, Dec 24, 8:53 AM CST, 3 hours 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
853 AM CST SAT DEC 24 2022

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

0848 AM     HEAVY SNOW       LAC VIEUX DESERT        46.13N 89.11W
12/24/2022  M12.2 INCH       VILAS              WI   CO-OP OBSERVER

            3 DAY TOTAL. CURRENT SNOW DEPTH 24 INCHES.

&&

SAC
Local storm report, Dec 24, 9:25 AM CST, 2 hours 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
925 AM CST SAT DEC 24 2022

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

0924 AM     HEAVY SNOW       PRESQUE ISLE            46.25N 89.73W
12/24/2022  M15.4 INCH       VILAS              WI   TRAINED SPOTTER

            3 DAY TOTAL. CURRENT SNOW DEPTH 24 INCHES.

&&

SAC

Nearby

Wind Chill Advisories in Wisconsin, 2022Every wind chill advisory in 2022

Sources

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