Alert archive / Wisconsin / Winter Weather Advisories in 2021

Winter Weather Advisory 13, NWS Milwaukee, WI

December 27, 202120 counties in Wisconsin

NWS Milwaukee, WI issued this winter weather advisory at Dec 27, 2021, 2:34 PM CST for 20 counties in Wisconsin. It took effect at Dec 28, 2021, 11:00 AM CST. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Dec 27, 2021, 2:34 PM CST (20:34 UTC)
In effect from
Dec 28, 2021, 11:00 AM CST
Expired
Dec 29, 2021, 2:00 AM CST
In force
15 hr
Issued by
NWS Milwaukee, WI

Counties Columbia County, WI, Dane County, WI, Dodge County, WI, Fond du Lac County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Jefferson County, WI, Kenosha County, WI, Lafayette County, WI, Marquette County, WI, Milwaukee County, WI, Ozaukee County, WI, Racine County, WI, Rock County, WI, Sauk County, WI, Sheboygan County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI

The radar

The Milwaukee radar (KMKX), 31 km from the middle of the area, began a volume at 20:35 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, 8.6 hours before the alert went out and 157 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 2021-12-27Temperature 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 2021-12-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 333 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
506 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
333 m²/s²
0-3 km storm-relative helicity
790 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

029 
WWUS43 KMKX 272034
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
234 PM CST Mon Dec 27 2021

WIZ056-057-062>064-067>070-280445-
/O.NEW.KMKX.WW.Y.0013.211228T1500Z-211229T0600Z/
Sauk-Columbia-Iowa-Dane-Jefferson-Lafayette-Green-Rock-Walworth-
Including the cities of Baraboo, Reedsburg, Prairie Du Sac, 
Sauk City, Portage, Columbus, Lake Wisconsin, Lodi, Dodgeville, 
Mineral Point, Barneveld, Madison, Watertown, Fort Atkinson, 
Jefferson, Darlington, Shullsburg, Benton, Belmont, Argyle, 
Blanchardville, Monroe, Brodhead, Janesville, Beloit, Whitewater,
Delavan, Elkhorn, Lake Geneva, and East Troy
234 PM CST Mon Dec 27 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 AM TUESDAY TO
MIDNIGHT CST TUESDAY NIGHT...

* WHAT...Accumulating snow is expected. Total snow accumulations
  around 2 to 4 inches are expected. Heavy snowfall rates up to 
  an inch per hour are possible causing hazardous driving 
  conditions. A brief period of freezing rain may occur as 
  precipitation transitions to rain Tuesday evening with ice 
  accumulations of a light glaze.

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

* WHEN...From 9 AM Tuesday to midnight CST Tuesday night.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the morning or evening commute.

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.

&&

$$

WIZ046-047-051-052-058>060-065-066-071-072-280445-
/O.NEW.KMKX.WW.Y.0013.211228T1800Z-211229T0600Z/
Marquette-Green Lake-Fond du Lac-Sheboygan-Dodge-Washington-
Ozaukee-Waukesha-Milwaukee-Racine-Kenosha-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Fond Du Lac, Plymouth, 
Sheboygan Falls, Howards Grove, Oostburg, Beaver Dam, Waupun, 
Mayville, West Bend, Germantown, Hartford, Mequon, Cedarburg, 
Grafton, Waukesha, Brookfield, New Berlin, Menomonee Falls, 
Muskego, Milwaukee, Racine, and Kenosha
234 PM CST Mon Dec 27 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TUESDAY TO
MIDNIGHT CST TUESDAY NIGHT...

* WHAT...Accumulating snow is expected. Total snow accumulations
  around 2 to 4 inches are expected with the highest amounts
  towards I-39. Heavy snowfall rates up to an inch per hour are
  possible causing hazardous driving conditions. A brief period of
  freezing rain may occur as precipitation transitions to rain
  Tuesday evening with ice accumulations of a light glaze mainly
  towards central Wisconsin.

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

* WHEN...From noon Tuesday to midnight CST Tuesday night.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the evening commute.

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.

&&

$$

RAH
5 follow-up statements
617 
WWUS43 KMKX 280314
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
914 PM CST Mon Dec 27 2021

WIZ056-057-062>064-067>070-281115-
/O.CON.KMKX.WW.Y.0013.211228T1500Z-211229T0600Z/
Sauk-Columbia-Iowa-Dane-Jefferson-Lafayette-Green-Rock-Walworth-
Including the cities of Baraboo, Reedsburg, Prairie Du Sac, 
Sauk City, Portage, Columbus, Lake Wisconsin, Lodi, Dodgeville, 
Mineral Point, Barneveld, Madison, Watertown, Fort Atkinson, 
Jefferson, Darlington, Shullsburg, Benton, Belmont, Argyle, 
Blanchardville, Monroe, Brodhead, Janesville, Beloit, Whitewater,
Delavan, Elkhorn, Lake Geneva, and East Troy
914 PM CST Mon Dec 27 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 AM TUESDAY TO
MIDNIGHT CST TUESDAY NIGHT...

* WHAT...Accumulating snow is expected. Total snow accumulations 
  around 2 to 4 inches are expected. Heavy snowfall rates up to 
  an inch per hour are possible causing hazardous driving 
  conditions. A brief period of freezing rain may occur as 
  precipitation transitions to rain Tuesday evening with ice 
  accumulations of a light glaze.

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

* WHEN...From 9 AM Tuesday to midnight CST Tuesday night.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

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.

&&

$$

WIZ046-047-051-052-058>060-065-066-071-072-281115-
/O.CON.KMKX.WW.Y.0013.211228T1800Z-211229T0600Z/
Marquette-Green Lake-Fond du Lac-Sheboygan-Dodge-Washington-
Ozaukee-Waukesha-Milwaukee-Racine-Kenosha-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Fond Du Lac, Plymouth, 
Sheboygan Falls, Howards Grove, Oostburg, Beaver Dam, Waupun, 
Mayville, West Bend, Germantown, Hartford, Mequon, Cedarburg, 
Grafton, Waukesha, Brookfield, New Berlin, Menomonee Falls, 
Muskego, Milwaukee, Racine, and Kenosha
914 PM CST Mon Dec 27 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TUESDAY TO
MIDNIGHT CST TUESDAY NIGHT...

* WHAT...Accumulating snow is expected. Total snow accumulations 
  around 2 to 4 inches are expected with the highest amounts 
  towards I-39. Heavy snowfall rates up to an inch per hour are 
  possible causing hazardous driving conditions. A brief period 
  of freezing rain may occur as precipitation transitions to 
  rain Tuesday evening with ice accumulations of a light glaze 
  mainly towards central Wisconsin.

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

* WHEN...From noon Tuesday to midnight CST Tuesday night.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

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.

&&

$$
272 
WWUS43 KMKX 280917
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
317 AM CST Tue Dec 28 2021

WIZ056-057-062>064-067>072-281730-
/O.EXT.KMKX.WW.Y.0013.211228T1700Z-211229T0600Z/
Sauk-Columbia-Iowa-Dane-Jefferson-Lafayette-Green-Rock-Walworth-
Racine-Kenosha-
Including the cities of Baraboo, Reedsburg, Prairie Du Sac, 
Sauk City, Portage, Columbus, Lake Wisconsin, Lodi, Dodgeville, 
Mineral Point, Barneveld, Madison, Watertown, Fort Atkinson, 
Jefferson, Darlington, Shullsburg, Benton, Belmont, Argyle, 
Blanchardville, Monroe, Brodhead, Janesville, Beloit, Whitewater,
Delavan, Elkhorn, Lake Geneva, East Troy, Racine, and Kenosha
317 AM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 11 AM THIS MORNING
TO MIDNIGHT CST TONIGHT...

* WHAT...Mixed precipitation expected. Total snow accumulations of
  1 to 4 inches and minor ice accumulations.

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

* WHEN...From 11 AM this morning to midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

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.

&&

$$

WIZ046-047-051-052-058>060-065-066-281730-
/O.EXT.KMKX.WW.Y.0013.211228T1900Z-211229T0800Z/
Marquette-Green Lake-Fond du Lac-Sheboygan-Dodge-Washington-
Ozaukee-Waukesha-Milwaukee-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Fond Du Lac, Plymouth, 
Sheboygan Falls, Howards Grove, Oostburg, Beaver Dam, Waupun, 
Mayville, West Bend, Germantown, Hartford, Mequon, Cedarburg, 
Grafton, Waukesha, Brookfield, New Berlin, Menomonee Falls, 
Muskego, and Milwaukee
317 AM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 1 PM THIS AFTERNOON
TO 2 AM CST WEDNESDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations of
  1 to 3 inches and minor ice accumulations possible.

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

* WHEN...From 1 PM this afternoon to 2 AM CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

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.

&&

$$
051 
WWUS43 KMKX 281810
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
1210 PM CST Tue Dec 28 2021

WIZ056-057-062>064-067>072-290215-
/O.CON.KMKX.WW.Y.0013.000000T0000Z-211229T0600Z/
Sauk-Columbia-Iowa-Dane-Jefferson-Lafayette-Green-Rock-Walworth-
Racine-Kenosha-
Including the cities of Baraboo, Reedsburg, Prairie Du Sac, 
Sauk City, Portage, Columbus, Lake Wisconsin, Lodi, Dodgeville, 
Mineral Point, Barneveld, Madison, Watertown, Fort Atkinson, 
Jefferson, Darlington, Shullsburg, Benton, Belmont, Argyle, 
Blanchardville, Monroe, Brodhead, Janesville, Beloit, Whitewater,
Delavan, Elkhorn, Lake Geneva, East Troy, Racine, and Kenosha
1210 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow and then mixed precipitation expected. Snow 
  accumulations of 2 to 4 inches with minor ice accumulations 
  after the snow tapers off.

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

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

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.

&&

$$

WIZ046-047-051-052-058>060-065-066-290215-
/O.CON.KMKX.WW.Y.0013.211228T1900Z-211229T0800Z/
Marquette-Green Lake-Fond du Lac-Sheboygan-Dodge-Washington-
Ozaukee-Waukesha-Milwaukee-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Fond Du Lac, Plymouth, 
Sheboygan Falls, Howards Grove, Oostburg, Beaver Dam, Waupun, 
Mayville, West Bend, Germantown, Hartford, Mequon, Cedarburg, 
Grafton, Waukesha, Brookfield, New Berlin, Menomonee Falls, 
Muskego, and Milwaukee
1210 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 AM CST
WEDNESDAY...

* WHAT...Snow and then mixed precipitation expected. Total snow
  accumulations of 1 to 3 inches and minor ice accumulations.

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

* WHEN...Until 2 AM CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

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.

&&

$$

MRC
784 
WWUS43 KMKX 282043
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
243 PM CST Tue Dec 28 2021

WIZ056-057-062>064-067>072-290445-
/O.CON.KMKX.WW.Y.0013.000000T0000Z-211229T0600Z/
Sauk-Columbia-Iowa-Dane-Jefferson-Lafayette-Green-Rock-Walworth-
Racine-Kenosha-
Including the cities of Baraboo, Reedsburg, Prairie Du Sac, 
Sauk City, Portage, Columbus, Lake Wisconsin, Lodi, Dodgeville, 
Mineral Point, Barneveld, Madison, Watertown, Fort Atkinson, 
Jefferson, Darlington, Shullsburg, Benton, Belmont, Argyle, 
Blanchardville, Monroe, Brodhead, Janesville, Beloit, Whitewater,
Delavan, Elkhorn, Lake Geneva, East Troy, Racine, and Kenosha
243 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow and then mixed precipitation expected. Additional 
  snow accumulations of 1 to 3 inches and ice accumulations of a 
  light glaze.

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

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

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.

&&

$$

WIZ046-047-051-052-058>060-065-066-290445-
/O.CON.KMKX.WW.Y.0013.000000T0000Z-211229T0800Z/
Marquette-Green Lake-Fond du Lac-Sheboygan-Dodge-Washington-
Ozaukee-Waukesha-Milwaukee-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Fond Du Lac, Plymouth, 
Sheboygan Falls, Howards Grove, Oostburg, Beaver Dam, Waupun, 
Mayville, West Bend, Germantown, Hartford, Mequon, Cedarburg, 
Grafton, Waukesha, Brookfield, New Berlin, Menomonee Falls, 
Muskego, and Milwaukee
243 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 AM CST
WEDNESDAY...

* WHAT...Snow and then mixed precipitation expected. Additional
  snow accumulations of 1 to 3 inches and ice accumulations of a
  light glaze.

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

* WHEN...Until 2 AM CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

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.

&&

$$

MRC
325 
WWUS43 KMKX 290238
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
838 PM CST Tue Dec 28 2021

WIZ067>072-290345-
/O.CAN.KMKX.WW.Y.0013.000000T0000Z-211229T0600Z/
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
Including the cities of Darlington, Shullsburg, Benton, Belmont, 
Argyle, Blanchardville, Monroe, Brodhead, Janesville, Beloit, 
Whitewater, Delavan, Elkhorn, Lake Geneva, East Troy, Racine, 
and Kenosha
838 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Precipitation has switched over to rain or drizzle, as
temperatures have warmed above freezing this evening. There may
still be a few slick spots on roads from earlier snowfall.

$$

WIZ066-290345-
/O.CAN.KMKX.WW.Y.0013.000000T0000Z-211229T0800Z/
Milwaukee-
Including the city of Milwaukee
838 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Precipitation has switched over to rain or drizzle, as
temperatures have warmed above freezing this evening. There may
still be a few slick spots on roads from earlier snowfall.

$$

WIZ056-057-062>064-290600-
/O.CON.KMKX.WW.Y.0013.000000T0000Z-211229T0600Z/
Sauk-Columbia-Iowa-Dane-Jefferson-
Including the cities of Baraboo, Reedsburg, Prairie Du Sac, 
Sauk City, Portage, Columbus, Lake Wisconsin, Lodi, Dodgeville, 
Mineral Point, Barneveld, Madison, Watertown, Fort Atkinson, 
and Jefferson
838 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Mixed precipitation. Additional snow accumulations of less
  than one inch and ice accumulations of a light glaze.

* WHERE...Jefferson, Iowa, Dane, Columbia and Sauk Counties.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions.

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.

&&

$$

WIZ046-047-051-052-058>060-065-290800-
/O.CON.KMKX.WW.Y.0013.000000T0000Z-211229T0800Z/
Marquette-Green Lake-Fond du Lac-Sheboygan-Dodge-Washington-
Ozaukee-Waukesha-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Fond Du Lac, Plymouth, 
Sheboygan Falls, Howards Grove, Oostburg, Beaver Dam, Waupun, 
Mayville, West Bend, Germantown, Hartford, Mequon, Cedarburg, 
Grafton, Waukesha, Brookfield, New Berlin, Menomonee Falls, 
and Muskego
838 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 AM CST
WEDNESDAY...

* WHAT...Mixed precipitation. Additional snow accumulations of 
  less than one inch and ice accumulations of a light glaze.

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

* WHEN...Until 2 AM CST Wednesday.

* IMPACTS...Plan on slippery road conditions.

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.

&&

$$

What forecasters said that day

The local office's own words before this winter weather advisory 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 winter weather advisory went out at Dec 27, 9:48 AM CST, 4 hours 46 minutes earlier.

Area forecast discussion, Dec 27, 9:48 AM CST, 4 hours 46 minutes before
Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
948 AM CST Mon Dec 27 2021

.UPDATE...
(Issued 948 AM CST Mon Dec 27 2021)

Some lower visibilities are being observed due to fog this
morning, especially along the WI/IL border with the low nearby
along with light winds. Westerly winds will pick up in the next
few hours along with clouds gradually clearing into this
afternoon. This will allow visibilities to improve with any
lingering fog clearing with the clouds.

RAH

&&

.SHORT TERM...
(Issued 250 AM CST Mon Dec 27 2021)

Today and Tonight:

The system pushing through this morning will likely push out over
the next few hours with some linger precipitation possible. Given
that we will have lost out ice in the DGZ temperatures will
determine whether that precipitation falls as freezing
drizzle/sleet or just drizzle. Given current temperatures and any
wet bulbing potential we would expect areas across the northern
half of the CWA to receive some freezing drizzle/sleet, perhaps
amounting to as much as a glaze or so. However, by around 12-14z
expect much of the precip to end and with increasing temperatures
into the morning expect much of any lingering precip to become
drizzle. The far north will be the best chance for any additional
ice into the daylight hours with precip chances ending by noon
today. In addition, expect some fog development this morning that
will cause some visibility restrictions. It is uncertain how
dense this might be but it should clear by the early afternoon.

Otherwise this afternoon into tonight will remain mostly dry with
clearing skies in the afternoon and early evening. It may remain a
bit breezy but for the most part quiet. Late tonight we will start
to see another system push in from the southwest with clouds
rolling in ahead of the system.

Kuroski

&&

.LONG TERM...
(Issued 250 AM CST Mon Dec 27 2021)

Tuesday through Sunday:

Another complex winter system is expected to impact the area on
Tuesday. The overall evolution should be fairly similar to what
took place Sunday night/early this morning, with initial snow
(with heavy rates) mixing with and changing to rain across the
south, and snow persisting further north. With the snow falling
during the day, impacts will likely be more widespread than what
we saw last night and early this morning.

Snow is expected to move into areas southwest of Madison Tuesday
morning, quickly expanding across most of the area through mid
day. Rates will be heavy at times--likely on the order of 1 to 2
inches per hour, especially across the northern half of the
forecast area. By afternoon, locations near the Illinois state
line and the lakeshore are expected to transition to a rain/snow
mix or all rain, while snow will persist elsewhere. By early
evening, cloud ice will diminish, with light freezing rain or
freezing drizzle developing across the far northwest, where
temperatures will still be at or below freezing. Further south and
east, rain and drizzle are expected, with temperatures at that
point expected to be in the mid 30s.

Snow amounts are expected to be highest northwest of Madison,
where 2 to 4 inches of snow will be possible. A glaze to tenth of
an inch of ice will also be possible in this area. Snow amounts
then taper to 1 to 3 inches for the Madison to Watertown to West
Bend corridor. Lakeshore areas and locations south of I-94 are
currently expected to receive around an inch or less. Again, much
like last night/this morning, snowfall rates will likely be the
bigger impact, with much of that snow falling within just a few
hours.

Precipitation will end late Tuesday night, with fairly quiet but
cold conditions expected on Wednesday as high pressure noses in
from the northwest. Highs will be in the 20s, though the far
northwest may remain in the teens.

An upper level jet will strengthen across the area Wednesday
night, with one or more bands of snow potentially developing along
the baroclinic zone located across the region. Currently have up
to a half inch of snow in the forecast for this timeframe, though
it's worth mentioning that these weakly forced, banded snow events
can be sneaky, especially with snow ratios. So, it's plausible
that some areas could see higher amounts, though that should be
fairly localized.

Beyond Wednesday night, the next feature of interest is a
potential system impacting the Midwest over the weekend. Most extended
ensembles members depict  the system in some form, though storm
track differs considerably. Ensemble mean is south of the
last few operational GFS runs, which is worth noting. Ultimately
the storm track will depend on how things evolve on Tuesday, and
how far south the colder air makes it Wednesday and Thursday. Lots
of time for things to change/shift, but definitely something to
keep an eye on in the coming days.

Boxell

&&

.AVIATION...
(Issued 948 AM CST Mon Dec 27 2021)

IFR to LIFR visibilities and ceilings will gradually improve to
VFR through 21Z as clouds clear. Winds will pick up from the west
this afternoon with gusts around 25 knots before lighter
northwesterly winds move in for tonight. Winds will then shift to
the southeast ahead of our next system expected to move through
Tuesday, bringing with it another round of IFR to LIFR ceilings
with snow changing to rain into Wednesday night.

RAH

&&

.MARINE...
(Issued 250 AM CST Mon Dec 27 2021)

Breezy southeast winds continue this morning ahead of the
approaching surface low. As this surface low pushes into southern
Wisconsin this morning there will be a decent lull in the winds.
As this exits to the northeast west winds will then pick back up.
Thus we have a Gale warning currently in effect until 9am for the
breezy southeast winds and then another Gale Warning for the
breezy west winds on the backside of the system going from 6pm to
midnight. Despite the lull in winds the Small Craft Advisory will
remain in effect until 2am this morning. In addition, we could see
winds approaching gale force across the far far northern part of
the lake for a brief period from the mid morning to the early
afternoon though we have not issued a Gale Warning for this
period.

Winds will die down overnight tonight but will likely pick up a
bit again Tuesday with another system pushing in. While gales do
not seem likely at this point, southeast gusts across the southern
half of the lake could approach gale force at times. Thereafter
winds look to be a bit quieter across the lake with the next
chance for gales likely coming next weekend.

Kuroski

&&

.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...Gale Warning...LMZ261-LMZ362-LMZ364-LMZ366-LMZ563-LMZ565-LMZ567-
     LMZ669-LMZ868-LMZ870...6 PM Monday to midnight Tuesday.

     Small Craft Advisory...LMZ643-LMZ644-LMZ645-LMZ646 until 2 AM
     Tuesday.

&&

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Hazardous weather outlook, Dec 27, 9:55 AM CST, 4 hours 39 minutes before
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
955 AM CST Mon Dec 27 2021

WIZ046-047-051-052-056>060-062>072-281600-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
955 AM CST Mon Dec 27 2021

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

.DAY ONE...This Afternoon and Tonight

Fog is expected to continue through the rest of this morning
before clearing this afternoon. Visibilities may drop to 1/4 of a
mile at times along the WI/IL border.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Another round of snow accumulation and mixed precipitation is
expected late Tuesday morning into Tuesday evening.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

LMZ643>646-281600-
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-
955 AM CST Mon Dec 27 2021

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

.DAY ONE...This Afternoon and Tonight

A Small Craft Advisory is in effect for high waves this morning.
The Advisory will continue into tonight as westerly gusts around
30 knots develop during the late afternoon.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Another Small Craft Advisory may be needed Tuesday into Wednesday
for breezy southeast winds and high waves.

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-281600-
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-
955 AM CST Mon Dec 27 2021

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

.DAY ONE...This Afternoon and Tonight

A Gale Warning is in effect for this evening from 6 PM until
midnight CST for westerly gale force winds over the northern two
thirds of Lake Michigan.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Southeast winds may approach gale force across the southern half
of the lake Tuesday and Tuesday night.

www.weather.gov/mkx

In the hours before

Special weather statement, Dec 27, 9:11 AM CST, 5 hours 23 minutes before
SPECIAL WEATHER STATEMENT
National Weather Service MILWAUKEE/SULLIVAN WI
911 AM CST Mon Dec 27 2021

WIZ062>072-271800-
Iowa-Dane-Jefferson-Waukesha-Milwaukee-Lafayette-Green-Rock-
Walworth-Racine-Kenosha-
Including the cities of Dodgeville, Mineral Point, Barneveld,
Madison, Watertown, Fort Atkinson, Jefferson, Waukesha,
Brookfield, New Berlin, Menomonee Falls, Muskego, Milwaukee,
Darlington, Shullsburg, Benton, Belmont, Argyle, Blanchardville,
Monroe, Brodhead, Janesville, Beloit, Whitewater, Delavan,
Elkhorn, Lake Geneva, East Troy, Racine, and Kenosha
911 AM CST Mon Dec 27 2021

...Some Dense Fog This Morning...

Fog has developed across the area this morning, with some dense
fog possible in low lying areas. This should only last for another
couple of hours, before winds shift to the west and become gusty
by midday and mixes out the fog. Slow down if driving through any
dense fog areas, as visibility values may drop quickly to 1/4 mile
or less.

Wood
Local storm report, Dec 27, 9:51 AM CST, 4 hours 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
951 AM CST MON DEC 27 2021

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

0825 AM     SNOW             1 W ALLENTON            43.42N 88.35W
12/27/2021  M4.0 INCH        WASHINGTON         WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION ALLW3 ALLENTON.

0700 AM     SNOW             NEWBURG                 43.43N 88.04W
12/27/2021  M4.0 INCH        OZAUKEE            WI   COCORAHS

            COCORAHS STATION WI-OZ-17 WEST BEND 7.3 E.

0700 AM     SNOW             2 ESE MONTELLO          43.78N 89.30W
12/27/2021  M4.0 INCH        MARQUETTE          WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION MTLW3 2.0 SE
            MONTELLO.

0700 AM     SNOW             2 WNW BEAVER DAM        43.47N 88.88W
12/27/2021  M3.8 INCH        DODGE              WI   COCORAHS

            COCORAHS STATION WI-DD-16 BEAVER DAM 2.4
            WNW.

0630 AM     SNOW             1 SW MARKESAN           43.70N 89.00W
12/27/2021  M3.7 INCH        GREEN LAKE         WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION RKNW3 0.6 SW
            MARKESAN.

0700 AM     SNOW             1 WNW SLINGER           43.33N 88.30W
12/27/2021  M3.0 INCH        WASHINGTON         WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION SLRW3 SLINGER 1 WNW.

0657 AM     SNOW             4 WSW HOWARDS GROVE     43.81N 87.91W
12/27/2021  M3.0 INCH        SHEBOYGAN          WI   COCORAHS

            COCORAHS STATION WI-SB-18 PLYMOUTH 5.4 NE.

0600 AM     SNOW             1 N REEDSBURG           43.55N 90.00W
12/27/2021  M3.0 INCH        SAUK               WI   COCORAHS

            COCORAHS STATION WI-SK-15 REEDSBURG 1.3 N.

0700 AM     SNOW             THERESA                 43.52N 88.45W
12/27/2021  M3.0 INCH        DODGE              WI   COCORAHS

            COCORAHS STATION WI-DD-14 THERESA 0.1 ESE.

0915 AM     SNOW             1 SSW BEAVER DAM        43.45N 88.85W
12/27/2021  M3.0 INCH        DODGE              WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION BEAW3 1.2 SW BEAVER
            DAM.

0700 AM     SNOW             1 S COLUMBUS            43.32N 89.03W
12/27/2021  M3.0 INCH        COLUMBIA           WI   COCORAHS

            COCORAHS STATION WI-CB-1 COLUMBUS 1.2 S.

0700 AM     SNOW             3 ESE ROSENDALE         43.79N 88.62W
12/27/2021  M2.8 INCH        FOND DU LAC        WI   COCORAHS

            COCORAHS STATION WI-DL-18 ELDORADO 2.3 S.

0635 AM     SNOW             2 NNE MERTON            43.16N 88.30W
12/27/2021  M2.7 INCH        WAUKESHA           WI   COCORAHS

            COCORAHS STATION WI-WK-61 HARTLAND 5.0 NNE.

0700 AM     SNOW             2 WNW KEWASKUM          43.53N 88.27W
12/27/2021  M2.7 INCH        WASHINGTON         WI   COCORAHS

            COCORAHS STATION WI-WS-4 KEWASKUM 1.8 WNW.

0800 AM     SNOW             1 S REEDSBURG           43.52N 90.00W
12/27/2021  M2.7 INCH        SAUK               WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION RBGW3 1.0 S
            REEDSBURG.

0700 AM     SNOW             1 W SHOREWOOD HILLS     43.08N 89.47W
12/27/2021  M2.7 INCH        DANE               WI   COCORAHS

            COCORAHS STATION WI-DA-39 MADISON 4.0 W.

0800 AM     SNOW             3 N MAPLE BLUFF         43.16N 89.37W
12/27/2021  M2.6 INCH        DANE               WI   COCORAHS

            COCORAHS STATION WI-DA-35 MADISON 5.5 N.

0800 AM     SNOW             5 NE JACKSON            43.37N 88.10W
12/27/2021  M2.5 INCH        WASHINGTON         WI   COCORAHS

            COCORAHS STATION WI-WS-15 WEST BEND 5.4 SE.

0645 AM     SNOW             5 SSE LIME RIDGE        43.40N 90.12W
12/27/2021  M2.5 INCH        SAUK               WI   COCORAHS

            COCORAHS STATION WI-SK-27 4 SSE LIME RIDGE.

0700 AM     SNOW             1 SSW MIDDLETON         43.09N 89.51W
12/27/2021  M2.5 INCH        DANE               WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION MDDW3 MIDDLETON.

0700 AM     SNOW             3 WSW ROCK SPRINGS      43.46N 89.97W
12/27/2021  M2.4 INCH        SAUK               WI   COCORAHS

            COCORAHS STATION WI-SK-2 ROCK SPRINGS 2.8
            WSW.

0700 AM     SNOW             1 E GREEN LAKE          43.84N 88.94W
12/27/2021  M2.4 INCH        GREEN LAKE         WI   COCORAHS

            COCORAHS STATION WI-GL-4 GREEN LAKE 0.8 E.

0702 AM     SNOW             WATERLOO                43.19N 88.98W
12/27/2021  M2.3 INCH        JEFFERSON          WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION LOOW3 WATERLOO.

0700 AM     SNOW             1 NW FITCHBURG          43.00N 89.44W
12/27/2021  M2.3 INCH        DANE               WI   COCORAHS

            COCORAHS STATION WI-DA-99 FITCHBURG 1.1 NW.

0700 AM     SNOW             3 N KOHLER              43.78N 87.77W
12/27/2021  M2.2 INCH        SHEBOYGAN          WI   COCORAHS

            COCORAHS STATION WI-SB-12 SHEBOYGAN 3.2 NW.

0710 AM     SNOW             ST. PETER               43.83N 88.35W
12/27/2021  M2.2 INCH        FOND DU LAC        WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION TAHW3 ST. PETER.

0700 AM     SNOW             OCONOMOWOC              43.10N 88.50W
12/27/2021  M2.0 INCH        WAUKESHA           WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION OCOW3 OCONOMOWOC.

0630 AM     SNOW             1 SW HARTFORD           43.32N 88.40W
12/27/2021  M2.0 INCH        WASHINGTON         WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION HARW3 0.7 SW
            HARTFORD.

0700 AM     SNOW             1 SSE RANDOM LAKE       43.55N 87.95W
12/27/2021  M2.0 INCH        SHEBOYGAN          WI   COCORAHS

            COCORAHS STATION WI-SB-10 RANDOM
            LAKE-COCORAHS.

0800 AM     SNOW             2 SW SHEBOYGAN          43.74N 87.73W
12/27/2021  M2.0 INCH        SHEBOYGAN          WI   COCORAHS

            COCORAHS STATION WI-SB-19 SHEBOYGAN 0.7 SSW.

0630 AM     SNOW             1 S SAUKVILLE           43.37N 87.94W
12/27/2021  M2.0 INCH        OZAUKEE            WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION SAVW3 SAUKVILLE.

0730 AM     SNOW             1 SSW LAKE MILLS        43.07N 88.91W
12/27/2021  M2.0 INCH        JEFFERSON          WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION LKMW3 0.5 SW LAKE
            MILLS.

0700 AM     SNOW             1 NNE WATERTOWN         43.21N 88.71W
12/27/2021  M2.0 INCH        DODGE              WI   COCORAHS

            COCORAHS STATION WI-DD-22 WATERTOWN 1.2 NNE.

0700 AM     SNOW             2 SW SHOREWOOD HILLS    43.06N 89.48W
12/27/2021  M2.0 INCH        DANE               WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION CHMW3 2.0 SW
            SHOREWOOD HILLS.

0700 AM     SNOW             1 SSW SAUKVILLE         43.37N 87.95W
12/27/2021  M1.7 INCH        OZAUKEE            WI   COCORAHS

            COCORAHS STATION WI-OZ-22 SAUKVILLE 0.9 SSW.

0700 AM     SNOW             2 NNE WHITEWATER        42.86N 88.73W
12/27/2021  M1.6 INCH        JEFFERSON          WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION WHTW3 WHITEWATER.

0735 AM     SNOW             1 NNW OCONOMOWOC        43.11N 88.50W
12/27/2021  M1.5 INCH        WAUKESHA           WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION ONCW3 OCONOMOWOC.

0600 AM     SNOW             3 SSE STOUGHTON         42.88N 89.21W
12/27/2021  M1.5 INCH        DANE               WI   COCORAHS

            COCORAHS STATION WI-DA-87 STOUGHTON 2.7 SSE.

0700 AM     SNOW             2 S MOUNT HOREB         42.98N 89.74W
12/27/2021  M1.5 INCH        DANE               WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION MRBW3 2.0 S MOUNT
            HOREB.

0700 AM     SNOW             4 S RILEY               42.97N 89.61W
12/27/2021  M1.5 INCH        DANE               WI   COCORAHS

            COCORAHS STATION WI-DA-77 VERONA 3.9 WSW.

0700 AM     SNOW             3 W JANESVILLE          42.68N 89.08W
12/27/2021  M1.4 INCH        ROCK               WI   COCORAHS

            COCORAHS STATION WI-RK-12 JANESVILLE 3.1 W.

0700 AM     SNOW             2 NE MENOMONEE FALLS    43.17N 88.10W
12/27/2021  M1.3 INCH        WAUKESHA           WI   COCORAHS

            COCORAHS STATION WI-WK-81 MENOMONEE FALLS
            2.0 NE.

0700 AM     SNOW             1 S GRAFTON             43.31N 87.96W
12/27/2021  M1.3 INCH        OZAUKEE            WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION GATW3 GRAFTON 1 S.

0700 AM     SNOW             3 WSW GLENDALE          43.11N 87.99W
12/27/2021  M1.3 INCH        MILWAUKEE          WI   COCORAHS

            COCORAHS STATION WI-MW-14 MILWAUKEE 3.6 NNW.

0645 AM     SNOW             3 WSW BROOKFIELD        43.05N 88.18W
12/27/2021  M1.2 INCH        WAUKESHA           WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION BFDW3 2.9 W
            BROOKFIELD.

0700 AM     SNOW             3 W WEST ALLIS          43.01N 88.08W
12/27/2021  M1.2 INCH        WAUKESHA           WI   COCORAHS

            COCORAHS STATION WI-WK-109 NEW BERLIN 3.4
            NE.

0700 AM     SNOW             2 NW WAUKESHA           43.03N 88.26W
12/27/2021  M1.2 INCH        WAUKESHA           WI   COCORAHS

            COCORAHS STATION WI-WK-54 WAUKESHA 1.6 NW.

0800 AM     SNOW             1 SSW CEDARBURG         43.28N 88.00W
12/27/2021  M1.1 INCH        OZAUKEE            WI   COCORAHS

            COCORAHS STATION WI-OZ-23 CEDARBURG 1.2 SSW.

0800 AM     SNOW             2 SE MONTICELLO         42.72N 89.56W
12/27/2021  M1.1 INCH        GREEN              WI   COCORAHS

            COCORAHS STATION WI-GN-5 MONTICELLO 2.2 SE.

0603 AM     SNOW             1 WSW BUTLER            43.10N 88.09W
12/27/2021  M1.0 INCH        WAUKESHA           WI   COCORAHS

            COCORAHS STATION WI-WK-93 1 WSW BUTLER.

0700 AM     SNOW             2 ESE HARTLAND          43.09N 88.31W
12/27/2021  M1.0 INCH        WAUKESHA           WI   COCORAHS

            COCORAHS STATION WI-WK-112 PEWAUKEE 3.2 W.

0700 AM     SNOW             5 N ELKHORN             42.75N 88.55W
12/27/2021  M1.0 INCH        WALWORTH           WI   COCORAHS

            COCORAHS STATION WI-WW-31 ELKHORN 5.3 N.

0400 AM     SNOW             1 S ROCHESTER           42.73N 88.23W
12/27/2021  M1.0 INCH        RACINE             WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION ROCW3 ROCHESTER 1 S.

0700 AM     SNOW             2 NE WAUWATOSA          43.08N 88.01W
12/27/2021  M1.0 INCH        MILWAUKEE          WI   COCORAHS

            COCORAHS STATION WI-MW-82 MILWAUKEE 2.4 WNW.

0714 AM     SNOW             2 N PALMYRA             42.90N 88.59W
12/27/2021  M1.0 INCH        JEFFERSON          WI   COCORAHS

            COCORAHS STATION WI-JF-10 PALMYRA 1.5 N.

0700 AM     SNOW             5 SE DODGEVILLE         42.91N 90.06W
12/27/2021  M1.0 INCH        IOWA               WI   COCORAHS

            COCORAHS STATION WI-IW-3 MINERAL POINT 7.3
            ENE.

0700 AM     SNOW             2 ESE BELLEVILLE        42.85N 89.51W
12/27/2021  M1.0 INCH        GREEN              WI   COCORAHS

            COCORAHS STATION WI-GN-1 BELLEVILLE 1.7 ESE.

0700 AM     SNOW             1 N MUKWONAGO           42.87N 88.33W
12/27/2021  M0.9 INCH        WAUKESHA           WI   COCORAHS

            COCORAHS STATION WI-WK-20 MUKWONAGO 0.5 N.

0800 AM     SNOW             4 WNW BIG BEND          42.91N 88.27W
12/27/2021  M0.9 INCH        WAUKESHA           WI   COCORAHS

            COCORAHS STATION WI-WK-43 WAUKESHA 7.2 SSW.

0818 AM     SNOW             3 ENE JANESVILLE        42.69N 88.96W
12/27/2021  M0.9 INCH        ROCK               WI   COCORAHS

            COCORAHS STATION WI-RK-16 JANESVILLE 2.7
            ENE.

0700 AM     SNOW             BIG BEND                42.88N 88.21W
12/27/2021  M0.8 INCH        WAUKESHA           WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION BBDW3 BIG BEND.

0700 AM     SNOW             2 SW PALMYRA            42.86N 88.61W
12/27/2021  M0.8 INCH        JEFFERSON          WI   COCORAHS

            COCORAHS STATION WI-JF-15 PALMYRA 1.9 SW.

0700 AM     SNOW             2 S SHEBOYGAN           43.72N 87.71W
12/27/2021  M0.7 INCH        SHEBOYGAN          WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION COSW3 SHEBOYGAN 3 S.

0815 AM     SNOW             DARLINGTON              42.68N 90.12W
12/27/2021  M0.7 INCH        LAFAYETTE          WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION DARW3 DARLINGTON 1
            SE.

0515 AM     SNOW             1 W MUSKEGO             42.89N 88.14W
12/27/2021  M0.6 INCH        WAUKESHA           WI   COCORAHS

            COCORAHS STATION WI-WK-16 MUSKEGO 1.0 W.

0600 AM     SNOW             2 WNW POTTER LAKE       42.84N 88.39W
12/27/2021  M0.6 INCH        WALWORTH           WI   COCORAHS

            COCORAHS STATION WI-WW-13 MUKWONAGO 3.4 SW.

0530 AM     SNOW             ELKHORN                 42.67N 88.53W
12/27/2021  M0.5 INCH        WALWORTH           WI   COCORAHS

            COCORAHS STATION WI-WW-12 ELKHORN 0.4 ESE.

0630 AM     SNOW             2 WNW DELAVAN           42.63N 88.66W
12/27/2021  M0.5 INCH        WALWORTH           WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION DLNW3 DELAVAN 1 W.

0600 AM     SNOW             4 SSW SOUTH WAYNE       42.51N 89.90W
12/27/2021  M0.5 INCH        LAFAYETTE          WI   COCORAHS

            COCORAHS STATION WI-LF-6 SOUTH WAYNE 3.9
            SSW.

0700 AM     SNOW             1 ENE LAKE GENEVA       42.59N 88.42W
12/27/2021  M0.4 INCH        WALWORTH           WI   COCORAHS

            COCORAHS STATION WI-WW-2 LAKE GENEVA 0.6
            ENE.

0630 AM     SNOW             1 W MONROE              42.60N 89.67W
12/27/2021  M0.4 INCH        GREEN              WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION MONW3 1.2 W MONROE.

0800 AM     SNOW             BENTON                  42.57N 90.39W
12/27/2021  M0.3 INCH        LAFAYETTE          WI   COCORAHS

            COCORAHS STATION WI-LF-5 BENTON 0.3 WNW.

0700 AM     SNOW             2 NW ELMWOOD PARK       42.71N 87.85W
12/27/2021  M0.1 INCH        RACINE             WI   COCORAHS

            COCORAHS STATION WI-RC-3 RACINE 2.3 WSW.

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 27, 2:15 AM CSTGale WarningMKX22 hr

Nearby

Winter Weather Advisories in Wisconsin, 2021Every winter weather advisory in 2021

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.