Alert archive / Wisconsin / Winter Weather Advisories in 2020

Winter Weather Advisory 21, NWS La Crosse, WI

December 28, 20208 counties in Iowa; 13 counties in Wisconsin; 7 counties in Minnesota

NWS La Crosse, WI issued this winter weather advisory at Dec 28, 2020, 3:45 AM CST for 8 counties in Iowa; 13 counties in Wisconsin; 7 counties in Minnesota. It took effect at Dec 29, 2020, 12:00 PM CST. It was in force for 21 hr.

The area

The counties it named.

The facts

Issued
Dec 28, 2020, 3:45 AM CST (09:45 UTC)
In effect from
Dec 29, 2020, 12:00 PM CST
Expired
Dec 30, 2020, 9:00 AM CST
In force
21 hr
Issued by
NWS La Crosse, WI
All 28 counties

Allamakee County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Dodge County, MN, Fillmore County, MN, Houston County, MN, Mower County, MN, Olmsted County, MN, Wabasha County, MN, Winona County, MN, Adams County, WI, Buffalo County, WI, Clark County, WI, Crawford County, WI, Grant County, WI, Jackson County, WI, Juneau County, WI, La Crosse County, WI, Monroe County, WI, Richland County, WI, Taylor County, WI, Trempealeau County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 27 km from the middle of the area, began a volume at 09:50 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

Minneapolis, MN (KMPX), launched 00:00Z, 9.8 hours before the alert went out and 210 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, Minneapolis, MN at 00:00Z on 2020-12-28Temperature 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, Minneapolis, MN at 00:00Z on 2020-12-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -55 square meters per square second.19395878Sfc1 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
680 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-55 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

000 
WWUS43 KARX 280945
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
345 AM CST Mon Dec 28 2020

...Winter Storm to Bring Several Inches of Snow Tuesday into 
Wednesday...

.Widespread snow will impact the region from Tuesday afternoon
through Wednesday morning. The snow is expected to fall heaviest
Tuesday night with potential for a period of light freezing 
drizzle as snow begins to taper off early Wednesday morning. The
axis of heaviest snowfall is expected to lay out from northeast 
Iowa into southwest Wisconsin where a Winter Storm Watch is in 
effect for potential snow accumulations of 6 inches or more and a
light glaze of ice. However, any further fluctuation in storm 
track will result in a shift in the placement of this axis of 
heavier snow, so continue to monitor the latest forecast. A Winter
Weather Advisory is in effect for the remainder of the area with 
several inches of snow accumulation expected. 

Hazardous travel is expected across the region with impacts to the
Tuesday evening and Wednesday morning commutes. 

WIZ017-029-034-042>044-281900-
/O.NEW.KARX.WW.Y.0021.201230T0000Z-201230T1800Z/
Taylor-Clark-Jackson-Monroe-Juneau-Adams-
Including the cities of Medford, Neillsville, Black River Falls, 
Sparta, Tomah, Mauston, and Friendship
345 AM CST Mon Dec 28 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM TUESDAY TO NOON
CST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 4 to 5 inches
  with locally higher amounts up to 6 inches possible.

* WHERE...Portions of central, north central and west central 
  Wisconsin.

* WHEN...From 6 PM Tuesday to noon CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions will impact Wednesday morning's 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.

&&

$$

IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-281900-
/O.NEW.KARX.WW.Y.0021.201229T1800Z-201230T1800Z/
Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Buffalo-Trempealeau-La Crosse-
Including the cities of Osage, Wabasha, Dodge Center, Rochester, 
Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, 
and La Crosse
345 AM CST Mon Dec 28 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TUESDAY TO NOON
CST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 4 to 5 inches
  with locally higher amounts up to 6 inches possible.

* WHERE...Portions of west central Wisconsin, north central Iowa 
  and southeast Minnesota.

* WHEN...From noon Tuesday to noon CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions will impact the Tuesday evening and Wednesday morning
  commutes.

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.

&&

$$

IAZ009>011-018-019-029-030-WIZ053>055-061-281900-
/O.NEW.KARX.WS.A.0006.201229T1800Z-201230T1800Z/
Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Clayton-
Vernon-Crawford-Richland-Grant-
Including the cities of Cresco, Decorah, Waukon, Charles City, 
New Hampton, Oelwein, Elkader, Viroqua, Prairie Du Chien, 
Richland Center, and Platteville
345 AM CST Mon Dec 28 2020

...WINTER STORM WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH
WEDNESDAY MORNING...

* WHAT...Heavy snow and a period of freezing drizzle possible.
  Total snow accumulations of 5 to 7 inches with locally higher
  amounts up to 8 inches possible. Ice accumulations of a light 
  glaze possible.

* WHERE...Portions of southwest Wisconsin and north central and 
  northeast Iowa.

* WHEN...From Tuesday afternoon through Wednesday morning.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions will impact the Tuesday evening and Wednesday morning
  commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$

Kurz
13 follow-up statements
990 
WWUS43 KARX 281905
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
105 PM CST Mon Dec 28 2020

...Winter Storm To Bring Accumulating Snow Later Tuesday into
Wednesday Morning...

WIZ017-029-034-042>044-290315-
/O.CON.KARX.WW.Y.0021.201230T0000Z-201230T1800Z/
Taylor-Clark-Jackson-Monroe-Juneau-Adams-
Including the cities of Medford, Neillsville, Black River Falls, 
Sparta, Tomah, Mauston, and Friendship
105 PM CST Mon Dec 28 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM TUESDAY TO
NOON CST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 4 to 5 
  inches with locally higher amounts up to 6 inches possible.

* WHERE...Portions of central, north central and west central 
  Wisconsin.

* WHEN...From 6 PM Tuesday to noon CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will impact Wednesday morning's 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.

&&

$$

IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-290315-
/O.CON.KARX.WW.Y.0021.201229T1800Z-201230T1800Z/
Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Buffalo-Trempealeau-La Crosse-
Including the cities of Osage, Wabasha, Dodge Center, Rochester, 
Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, 
and La Crosse
105 PM CST Mon Dec 28 2020

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

* WHAT...Snow expected. Total snow accumulations of 4 to 5 
  inches with locally higher amounts up to 6 inches possible.

* WHERE...Portions of west central Wisconsin, north central Iowa 
  and southeast Minnesota.

* WHEN...From noon Tuesday to noon CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will impact the Tuesday evening and Wednesday 
  morning commutes.

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.

&&

$$

IAZ009>011-018-019-029-030-WIZ053>055-061-290315-
/O.CON.KARX.WS.A.0006.201229T1800Z-201230T1800Z/
Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Clayton-
Vernon-Crawford-Richland-Grant-
Including the cities of Cresco, Decorah, Waukon, Charles City, 
New Hampton, Oelwein, Elkader, Viroqua, Prairie Du Chien, 
Richland Center, and Platteville
105 PM CST Mon Dec 28 2020

...WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH WEDNESDAY MORNING...

* WHAT...Heavy snow and a period of freezing drizzle possible. 
  Total snow accumulations of 5 to 7 inches with locally higher 
  amounts up to 8 inches possible. Ice accumulations of a light 
  glaze possible.

* WHERE...Portions of southwest Wisconsin and north central and 
  northeast Iowa.

* WHEN...From Tuesday afternoon through Wednesday morning.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions will impact the Tuesday evening and Wednesday 
  morning commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$
209 
WWUS43 KARX 282031
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
231 PM CST Mon Dec 28 2020

...Winter Storm Impacts Will Being Late Tuesday and Continue into
Wednesday Morning...

. A strong winter storm will bring snowfall, heavy at times, to
the area beginning in the afternoon Tuesday. Several hours of
heavy snow of one inch per hour are expected south of Interstate 
90 in the late afternoon and evening. The snow will end from west
to east by Wednesday morning to allow clean up to begin.  

If you have travel planned Tuesday afternoon into Wednesday
morning, consider changing your plans, especially if south of 
Interstate 90. 

IAZ009>011-018-019-029-030-WIZ053>055-061-291100-
/O.UPG.KARX.WS.A.0006.201229T1800Z-201230T1800Z/
/O.NEW.KARX.WS.W.0005.201229T1800Z-201230T1800Z/
Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Clayton-
Vernon-Crawford-Richland-Grant-
Including the cities of Cresco, Decorah, Waukon, Charles City, 
New Hampton, Oelwein, Elkader, Viroqua, Prairie Du Chien, 
Richland Center, and Platteville
231 PM CST Mon Dec 28 2020

...WINTER STORM WARNING IN EFFECT FROM NOON TUESDAY TO NOON CST
WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 6 to 10
  inches and ice accumulations of a light glaze.

* WHERE...Portions of southwest Wisconsin and northeast Iowa.

* WHEN...From noon Tuesday to noon Wednesday. Snow is expected to
  begin during the afternoon and become heavy by the evening
  commute in most areas.  

* IMPACTS...Travel could be very difficult. The hazardous
  conditions will impact the Tuesday evening and Wednesday morning
  commutes. 


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.

&&

$$

WIZ017-029-034-042>044-291100-
/O.CON.KARX.WW.Y.0021.201230T0000Z-201230T1800Z/
Taylor-Clark-Jackson-Monroe-Juneau-Adams-
Including the cities of Medford, Neillsville, Black River Falls, 
Sparta, Tomah, Mauston, and Friendship
231 PM CST Mon Dec 28 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM TUESDAY TO
NOON CST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 7 inches possible.

* WHERE...Portions of central, north central and west central 
  Wisconsin.

* WHEN...From 6 PM Tuesday to noon Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will impact Wednesday morning's 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.

&&

$$

IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-291100-
/O.CON.KARX.WW.Y.0021.201229T1800Z-201230T1800Z/
Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Buffalo-Trempealeau-La Crosse-
Including the cities of Osage, Wabasha, Dodge Center, Rochester, 
Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, 
and La Crosse
231 PM CST Mon Dec 28 2020

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

* WHAT...Snow expected. Total snow accumulations of 3 to 7 inches possible.

* WHERE...Portions of west central Wisconsin, north central Iowa 
  and southeast Minnesota.

* WHEN...From noon Tuesday to noon CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will impact the Tuesday evening and Wednesday 
  morning commutes.

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.

&&

$$
Baumgardt
177 
WWUS43 KARX 290325
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
925 PM CST Mon Dec 28 2020

...Winter Storm Impacts Tuesday Afternoon into Wednesday 
Morning...

.A powerful winter storm will bring snowfall, heavy at times, to
the area Tuesday afternoon into Wednesday morning. Conditions 
will deteriorate quickly from west to east during the afternoon, 
impacting the afternoon and evening commutes. Snowfall rates of 
one inch per hour are expected south of Interstate 90 from late 
afternoon into the evening, with travel becoming hazardous. Snow 
will taper off from west to east early Wednesday morning.

If you are planning to travel Tuesday afternoon into Wednesday 
morning, consider changing your plans, especially if south of 
Interstate 90.

IAZ009>011-018-019-029-030-WIZ053>055-061-291215-
/O.CON.KARX.WS.W.0005.201229T1800Z-201230T1800Z/
Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Clayton-
Vernon-Crawford-Richland-Grant-
Including the cities of Cresco, Decorah, Waukon, Charles City, 
New Hampton, Oelwein, Elkader, Viroqua, Prairie Du Chien, 
Richland Center, and Platteville
925 PM CST Mon Dec 28 2020

...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TUESDAY TO
NOON CST WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 6 to 10 
  inches and ice accumulations of a light glaze.

* WHERE...Portions of southwest Wisconsin and northeast Iowa.

* WHEN...From noon Tuesday to noon CST Wednesday. Snow is expected
  to begin during the afternoon, becoming heavy by the evening
  commute.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions will impact the Tuesday evening and Wednesday morning
  commutes.

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.

&&

$$

WIZ017-029-034-042>044-291215-
/O.CON.KARX.WW.Y.0021.201230T0000Z-201230T1800Z/
Taylor-Clark-Jackson-Monroe-Juneau-Adams-
Including the cities of Medford, Neillsville, Black River Falls, 
Sparta, Tomah, Mauston, and Friendship
925 PM CST Mon Dec 28 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM TUESDAY TO
NOON CST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 7 
  inches.

* WHERE...Portions of central, north central and west central 
  Wisconsin.

* WHEN...From 6 PM Tuesday to noon CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions will impact the Tuesday afternoon and Wednesday
  morning commutes.

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.

&&

$$

IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-291215-
/O.CON.KARX.WW.Y.0021.201229T1800Z-201230T1800Z/
Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Buffalo-Trempealeau-La Crosse-
Including the cities of Osage, Wabasha, Dodge Center, Rochester, 
Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, 
and La Crosse
925 PM CST Mon Dec 28 2020

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

* WHAT...Snow expected. Total snow accumulations of 3 to 7 inches.

* WHERE...Portions of west central Wisconsin, north central Iowa 
  and southeast Minnesota.

* WHEN...From noon Tuesday to noon CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions will impact the Tuesday afternoon and Wednesday
  morning commutes.

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.

&&

$$

LL
364 
WWUS43 KARX 290913
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
313 AM CST Tue Dec 29 2020

...Winter Storm Impacts This Afternoon into Wednesday Morning...

.A winter storm will bring snowfall, heavy at times, to the area 
this afternoon into Wednesday morning. Conditions will deteriorate 
quickly from west to east this afternoon, impacting the afternoon 
and evening commutes. Snowfall rates of one inch per hour are 
expected south of Interstate 90 from late afternoon into the 
evening, with travel becoming hazardous. Look for the snow to taper 
off from west to east early Wednesday morning.

If you are planning to travel this afternoon into Wednesday morning, 
consider changing your plans, especially south of Interstate 90.

IAZ009>011-018-019-029-030-WIZ053>055-061-291715-
/O.CON.KARX.WS.W.0005.201229T1800Z-201230T1800Z/
Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Clayton-
Vernon-Crawford-Richland-Grant-
Including the cities of Cresco, Decorah, Waukon, Charles City, 
New Hampton, Oelwein, Elkader, Viroqua, Prairie Du Chien, 
Richland Center, and Platteville
313 AM CST Tue Dec 29 2020

...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO NOON
CST WEDNESDAY...

* WHAT...Heavy mixed precipitation expected. Total snow 
  accumulations of 6 to 10 inches and ice accumulations of a 
  light glaze.

* WHERE...Portions of southwest Wisconsin and northeast Iowa.

* WHEN...From noon today to noon CST Wednesday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

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.

&&

$$

WIZ017-029-034-042>044-291715-
/O.EXT.KARX.WW.Y.0021.201229T2100Z-201230T1800Z/
Taylor-Clark-Jackson-Monroe-Juneau-Adams-
Including the cities of Medford, Neillsville, Black River Falls, 
Sparta, Tomah, Mauston, and Friendship
313 AM CST Tue Dec 29 2020

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 3 PM THIS AFTERNOON
TO NOON CST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 
  inches.

* WHERE...Portions of central, north central and west central 
  Wisconsin.

* WHEN...From 3 PM this afternoon to noon CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions will impact the commutes this evening and Wednesday
  morning.

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.

&&

$$

IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-291715-
/O.CON.KARX.WW.Y.0021.201229T1800Z-201230T1800Z/
Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Buffalo-Trempealeau-La Crosse-
Including the cities of Osage, Wabasha, Dodge Center, Rochester, 
Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, 
and La Crosse
313 AM CST Tue Dec 29 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
NOON CST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 
  inches.

* WHERE...Portions of west central Wisconsin, north central Iowa 
  and southeast Minnesota.

* WHEN...From noon today to noon CST Wednesday.

* 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.

&&

$$

DAS
214 
WWUS43 KARX 291358
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
758 AM CST Tue Dec 29 2020

...Travel To Deteriorate This Afternoon...

.At mid-morning, radar showed snow, heavy at times, across western
Iowa. 3-4" of snow had fallen in western Iowa in only a few 
hours. That snow is headed for the local area and will spread in 
from west to east this afternoon. By 6 pm, most of northeast Iowa 
and far southwest Wisconsin will have 3 to 4 inches of fresh 
snow. Areas north of Interstate 94 will see snow increase in the 
early evening. 

Travel is expected to deteriorate rapidly south of Interstate 94 
this afternoon and become hazardous by early evening. If you are 
planning to travel this afternoon into Wednesday morning, consider
changing your plans, especially if into Iowa, southern Wisconsin,
or northern Illinois. 

IAZ009>011-018-019-029-030-WIZ053>055-061-292200-
/O.CON.KARX.WS.W.0005.201229T1800Z-201230T1800Z/
Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Clayton-
Vernon-Crawford-Richland-Grant-
Including the cities of Cresco, Decorah, Waukon, Charles City, 
New Hampton, Oelwein, Elkader, Viroqua, Prairie Du Chien, 
Richland Center, and Platteville
758 AM CST Tue Dec 29 2020

...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO NOON
CST WEDNESDAY...

* WHAT...Heavy mixed precipitation expected. Total snow 
  accumulations of 6 to 10 inches and ice accumulations of a 
  light glaze.

* WHERE...Portions of southwest Wisconsin and northeast Iowa.

* WHEN...From noon today to noon CST Wednesday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

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.

&&

$$

WIZ017-029-034-042>044-292200-
/O.CON.KARX.WW.Y.0021.201229T2100Z-201230T1800Z/
Taylor-Clark-Jackson-Monroe-Juneau-Adams-
Including the cities of Medford, Neillsville, Black River Falls, 
Sparta, Tomah, Mauston, and Friendship
758 AM CST Tue Dec 29 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO NOON CST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 
  inches.

* WHERE...Portions of central, north central and west central 
  Wisconsin.

* WHEN...From 3 PM this afternoon to noon CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will impact the commutes this evening and Wednesday 
  morning.

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.

&&

$$

IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-292200-
/O.CON.KARX.WW.Y.0021.201229T1800Z-201230T1800Z/
Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Buffalo-Trempealeau-La Crosse-
Including the cities of Osage, Wabasha, Dodge Center, Rochester, 
Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, 
and La Crosse
758 AM CST Tue Dec 29 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
NOON CST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 
  inches.

* WHERE...Portions of west central Wisconsin, north central Iowa 
  and southeast Minnesota.

* WHEN...From noon today to noon CST Wednesday.

* 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.

&&

$$
db
012 
WWUS43 KARX 291750
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
1150 AM CST Tue Dec 29 2020

...Snow Approaching Northeast Iowa and Southeast Minnesota...

.Around noon, radar indicated snow, some heavy, was approaching 
Interstate 35 in north central Iowa and southern Minnesota. 
Visibilities in the snow quickly dropped to less than one mile 
and roads become immediately covered and slick. 

Expect snow to begin in the early afternoon west of the
Mississippi river, shifting into Wisconsin by mid to late
afternoon. By 6 pm, most of northeast Iowa and far southwest 
Wisconsin will have 3 to 4 inches of fresh snow. Areas north of 
Interstate 94 will see snow increase in the early evening.

Travel is expected to deteriorate rapidly once snow begins.
If you have travel plans during the storm, consider changing them,
especially south of Interstate 90. 

The storm is moving through slightly faster and thus travel should
be improving Wednesday morning. The Advisories and Warnings will 
now end 3 hours sooner Wednesday morning. 

IAZ009>011-018-019-029-030-WIZ053>055-061-300200-
/O.EXT.KARX.WS.W.0005.201229T1800Z-201230T1500Z/
Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Clayton-
Vernon-Crawford-Richland-Grant-
Including the cities of Cresco, Decorah, Waukon, Charles City, 
New Hampton, Oelwein, Elkader, Viroqua, Prairie Du Chien, 
Richland Center, and Platteville
1150 AM CST Tue Dec 29 2020

...WINTER STORM WARNING NOW IN EFFECT UNTIL 9 AM CST WEDNESDAY...

* WHAT...Heavy snow. Total snow accumulations of 6 to 10 inches 
  and ice accumulations of a light glaze.

* WHERE...Portions of southwest Wisconsin and northeast Iowa.

* WHEN...Until 9 AM CST Wednesday. Heavy snow later this afternoon
  and evening. 

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

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.

&&

$$

WIZ017-029-034-042>044-300200-
/O.EXT.KARX.WW.Y.0021.201229T2100Z-201230T1500Z/
Taylor-Clark-Jackson-Monroe-Juneau-Adams-
Including the cities of Medford, Neillsville, Black River Falls, 
Sparta, Tomah, Mauston, and Friendship
1150 AM CST Tue Dec 29 2020

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 3 PM THIS AFTERNOON
TO 9 AM CST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 
  inches.

* WHERE...Portions of central, north central and west central 
  Wisconsin.

* WHEN...From 3 PM this afternoon to 9 AM CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will impact the commutes this evening and Wednesday 
  morning.

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.

&&

$$

IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-300200-
/O.EXT.KARX.WW.Y.0021.201229T1800Z-201230T1200Z/
Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Buffalo-Trempealeau-La Crosse-
Including the cities of Osage, Wabasha, Dodge Center, Rochester, 
Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, 
and La Crosse
1150 AM CST Tue Dec 29 2020

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

* WHAT...Snow expected. Total snow accumulations of 3 to 6 
  inches.

* WHERE...Portions of west central Wisconsin, north central Iowa 
  and southeast Minnesota.

* WHEN...Until 6 AM CST Wednesday.

* 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.

&&

$$
Baumgardt
327 
WWUS43 KARX 292002
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
202 PM CST Tue Dec 29 2020

...Accumulating Snow Shifting Into Wisconsin...

.Accumulating snow was falling in southeast Minnesota, northeast
Iowa, and southwest Wisconsin at mid-afternoon. Travel conditions
rapidly deteriorate once the snow begins and visibilities are
dropping to about 1/2 mile. 

The snow will continue to spread into Wisconsin through the late
afternoon and accumulate. 

The afternoon commute will be snowy for many so plan ahead and
allow extra time. By 6 pm, several inches of snow are expected
west and south of La Crosse. Travel will become hazardous tonight
with additional snowfall. If you have travel plans, consider 
changing them, especially south of Interstate 90.

IAZ009>011-018-019-029-030-WIZ053>055-061-300415-
/O.CON.KARX.WS.W.0005.000000T0000Z-201230T1500Z/
Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Clayton-
Vernon-Crawford-Richland-Grant-
Including the cities of Cresco, Decorah, Waukon, Charles City, 
New Hampton, Oelwein, Elkader, Viroqua, Prairie Du Chien, 
Richland Center, and Platteville
202 PM CST Tue Dec 29 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...

* WHAT...Heavy snow. Total snow accumulations of 6 to 10 inches 
  and ice accumulations of a light glaze.

* WHERE...Portions of southwest Wisconsin and northeast Iowa.

* WHEN...Until 9 AM CST Wednesday. Heavy snow later this 
  afternoon and evening.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

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.

&&

$$

WIZ017-029-034-042>044-300415-
/O.CON.KARX.WW.Y.0021.201229T2100Z-201230T1500Z/
Taylor-Clark-Jackson-Monroe-Juneau-Adams-
Including the cities of Medford, Neillsville, Black River Falls, 
Sparta, Tomah, Mauston, and Friendship
202 PM CST Tue Dec 29 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 5 
  inches.

* WHERE...Portions of central, north central and west central 
  Wisconsin.

* WHEN...Through 9 AM CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will impact the commutes this evening and Wednesday 
  morning.

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.

&&

$$

IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-300415-
/O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/
Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Buffalo-Trempealeau-La Crosse-
Including the cities of Osage, Wabasha, Dodge Center, Rochester, 
Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, 
and La Crosse
202 PM CST Tue Dec 29 2020

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

* WHAT...Snow expected. Total snow accumulations of 3 to 5 
  inches.

* WHERE...Portions of west central Wisconsin, north central Iowa 
  and southeast Minnesota.

* WHEN...Until 6 AM CST Wednesday.

* 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.

&&

$$

Baumgardt
376 
WWUS43 KARX 300058
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
658 PM CST Tue Dec 29 2020

...Accumulating Snow Continues For Parts of the Area...

.Accumulating snow continues for parts of eastern Iowa into
western Wisconsin. The dry air has worked into parts of southeast
Minnesota and northern Iowa, shutting down much of the
accumulating snow. The heavier snow and reduced visibilities of a
half mile or less are expected across far eastern Iowa and parts
of southeast Wisconsin through early evening.

The snow will continue to diminish from west to
east with the highest amounts across the warned area. Some
freezing drizzle is possible, so with the snow covered roads and
some patchy drizzle, the winter weather advisory remains in place.

IAZ009-010-018-019-WIZ053-300900-
/O.CAN.KARX.WS.W.0005.000000T0000Z-201230T1500Z/
/O.EXA.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/
Howard-Winneshiek-Floyd-Chickasaw-Vernon-
Including the cities of Cresco, Decorah, Charles City, 
New Hampton, and Viroqua
658 PM CST Tue Dec 29 2020

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST WEDNESDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of up to two inches.

* WHERE...In Wisconsin, Vernon County. In Iowa, Howard, 
  Winneshiek, Floyd and Chickasaw Counties.

* WHEN...Until 6 AM CST Wednesday.

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

&&

$$

IAZ011-029-030-WIZ054-055-061-300900-
/O.CON.KARX.WS.W.0005.000000T0000Z-201230T1500Z/
Allamakee-Fayette-Clayton-Crawford-Richland-Grant-
Including the cities of Waukon, Oelwein, Elkader, 
Prairie Du Chien, Richland Center, and Platteville
658 PM CST Tue Dec 29 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...

* WHAT...Heavy snow. Additional snow accumulations of up to two 
  inches.

* WHERE...Portions of southwest Wisconsin and northeast Iowa.

* WHEN...Until 9 AM CST Wednesday.

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

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.

&&

$$

WIZ017-029-034-042>044-300900-
/O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1500Z/
Taylor-Clark-Jackson-Monroe-Juneau-Adams-
Including the cities of Medford, Neillsville, Black River Falls, 
Sparta, Tomah, Mauston, and Friendship
658 PM CST Tue Dec 29 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...

* WHAT...Snow. Additional snow accumulations of up to two inches.

* WHERE...Portions of central, north central and west central 
  Wisconsin.

* WHEN...Until 9 AM CST Wednesday.

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

&&

$$

IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-300900-
/O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/
Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Buffalo-Trempealeau-La Crosse-
Including the cities of Osage, Wabasha, Dodge Center, Rochester, 
Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, 
and La Crosse
658 PM CST Tue Dec 29 2020

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

* WHAT...Snow. Additional snow accumulations trace to one inch. 
  Some patchy freezing drizzle possible.

* WHERE...Portions of west central Wisconsin, north central Iowa 
  and southeast Minnesota.

* WHEN...Until 6 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.

&&

$$

Zapotocny
600 
WWUS43 KARX 300301
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
901 PM CST Tue Dec 29 2020

The snow will continue to diminish from west to east with the 
highest snow amounts across parts of southwest Wisconsin. Some 
freezing drizzle is possible. Snow covered roads will make travel
slippery to hazardous.

IAZ011-029-301115-
/O.CAN.KARX.WS.W.0005.000000T0000Z-201230T1500Z/
/O.EXA.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/
Allamakee-Fayette-
Including the cities of Waukon and Oelwein
901 PM CST Tue Dec 29 2020

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST WEDNESDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow and some patchy freezing drizzle. Additional snow 
  accumulations a trace to one inch.

* WHERE...Allamakee and Fayette Counties.

* WHEN...Until 6 AM CST Wednesday.

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

&&

$$

IAZ030-WIZ054-055-061-301115-
/O.CON.KARX.WS.W.0005.000000T0000Z-201230T1500Z/
Clayton-Crawford-Richland-Grant-
Including the cities of Elkader, Prairie Du Chien, 
Richland Center, and Platteville
901 PM CST Tue Dec 29 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...

* WHAT...Snow and some patchy freezing drizzle. Some additional
  snow accumulations of an inch or two for far southern 
  Wisconsin.

* WHERE...In Iowa, Clayton County. In Wisconsin, Grant, Richland 
  and Crawford Counties.

* WHEN...Until 9 AM CST Wednesday.

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

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.

&&

$$

WIZ017-029-034-042>044-301115-
/O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1500Z/
Taylor-Clark-Jackson-Monroe-Juneau-Adams-
Including the cities of Medford, Neillsville, Black River Falls, 
Sparta, Tomah, Mauston, and Friendship
901 PM CST Tue Dec 29 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...

* WHAT...Snow and some patchy freezing drizzle. Additional snow
  accumulations of a trace to one inch.

* WHERE...Portions of central, north central and west central 
  Wisconsin.

* WHEN...Until 9 AM CST Wednesday.

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

&&

$$

IAZ008>010-018-019-MNZ079-086>088-094>096-WIZ032-033-041-053-
301115-
/O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/
Mitchell-Howard-Winneshiek-Floyd-Chickasaw-Wabasha-Dodge-Olmsted-
Winona-Mower-Fillmore-Houston-Buffalo-Trempealeau-La Crosse-
Vernon-
Including the cities of Osage, Cresco, Decorah, Charles City, 
New Hampton, Wabasha, Dodge Center, Rochester, Winona, Austin, 
Preston, Caledonia, Alma, Arcadia, Whitehall, La Crosse, 
and Viroqua
901 PM CST Tue Dec 29 2020

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

* WHAT...Snow and some patchy freezing drizzle. Additional snow
  accumulations of a trace to one inch.

* WHERE...Portions of southwest and west central Wisconsin, 
  north central and northeast Iowa and southeast Minnesota.

* WHEN...Until 6 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.

&&

$$

Zapotocny
044 
WWUS43 KARX 300358
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
958 PM CST Tue Dec 29 2020

Some snow showers continue to push across the area. Additional
snow amounts will be minimal. Some freezing drizzle is possible. 
Snow covered roads will make travel slippery to hazardous.

IAZ030-WIZ054-055-301200-
/O.CAN.KARX.WS.W.0005.000000T0000Z-201230T1500Z/
/O.EXA.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/
Clayton-Crawford-Richland-
Including the cities of Elkader, Prairie Du Chien, 
and Richland Center
958 PM CST Tue Dec 29 2020

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST WEDNESDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow and some patchy freezing drizzle. Additional snow 
  accumulations a trace to one inch.

* WHERE...In Wisconsin, Crawford and Richland Counties. In Iowa, 
  Clayton County.

* WHEN...Until 6 AM CST Wednesday.

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

&&

$$

WIZ061-301200-
/O.CON.KARX.WS.W.0005.000000T0000Z-201230T1500Z/
Grant-
Including the city of Platteville
958 PM CST Tue Dec 29 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...

* WHAT...Snow and some patchy freezing drizzle. Additional snow 
  accumulations a trace to one inch.

* WHERE...Grant County.

* WHEN...Until 9 AM CST Wednesday.

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

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.

&&

$$

WIZ017-029-034-042>044-301200-
/O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1500Z/
Taylor-Clark-Jackson-Monroe-Juneau-Adams-
Including the cities of Medford, Neillsville, Black River Falls, 
Sparta, Tomah, Mauston, and Friendship
958 PM CST Tue Dec 29 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...

* WHAT...Snow and some patchy freezing drizzle. Additional snow 
  accumulations a trace to one inch.

* WHERE...Portions of central, north central and west central 
  Wisconsin.

* WHEN...Until 9 AM CST Wednesday.

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

&&

$$

IAZ008>011-018-019-029-MNZ079-086>088-094>096-WIZ032-033-041-053-
301200-
/O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/
Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-
Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-Buffalo-
Trempealeau-La Crosse-Vernon-
Including the cities of Osage, Cresco, Decorah, Waukon, 
Charles City, New Hampton, Oelwein, Wabasha, Dodge Center, 
Rochester, Winona, Austin, Preston, Caledonia, Alma, Arcadia, 
Whitehall, La Crosse, and Viroqua
958 PM CST Tue Dec 29 2020

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

* WHAT...Snow and some patchy freezing drizzle. Additional snow 
  accumulations a trace to one inch.

* WHERE...Portions of southwest and west central Wisconsin, 
  north central and northeast Iowa and southeast Minnesota.

* WHEN...Until 6 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.

&&

$$

Zapotocny
314 
WWUS43 KARX 300911
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
311 AM CST Wed Dec 30 2020

Some light snow, mixing with or changing to freezing drizzle
continues to push across the area. Additional snow amounts will 
be minimal with possibly some glazing from the freezing drizzle. 
The combination of this light precipitation and snow covered 
roads will make travel slippery to hazardous early this morning.

WIZ061-301500-
/O.CAN.KARX.WS.W.0005.000000T0000Z-201230T1500Z/
/O.EXA.KARX.WW.Y.0021.000000T0000Z-201230T1500Z/
Grant-
Including the city of Platteville
311 AM CST Wed Dec 30 2020

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 AM CST THIS
MORNING...
...WINTER STORM WARNING IS CANCELLED...

The National Weather Service in La Crosse has issued a Winter
Weather Advisory for Grant County, which is in effect until 9 AM 
CST this morning. The Winter Storm Warning has been cancelled. 

* WHAT...Snow and some patchy freezing drizzle. Additional snow
  accumulations a trace to one inch. Light glaze possible from 
  freezing drizzle.

* WHERE...Portions of central, north central and west central 
  Wisconsin. 

* WHEN...Until 9 AM CST Wednesday.

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

&&

$$

IAZ008-009-018-019-MNZ086-087-094-095-301015-
/O.CAN.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/
Mitchell-Howard-Floyd-Chickasaw-Dodge-Olmsted-Mower-Fillmore-
Including the cities of Osage, Cresco, Charles City, New Hampton,
Dodge Center, Rochester, Austin, and Preston
311 AM CST Wed Dec 30 2020

...WINTER WEATHER ADVISORY IS CANCELLED...

The National Weather Service in La Crosse has cancelled the
Winter Weather Advisory. 

Precipitation has moved out of the area. Therefore, the Winter
Weather Advisory has been cancelled.

$$

WIZ017-029-034-042>044-301500-
/O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1500Z/
Taylor-Clark-Jackson-Monroe-Juneau-Adams-
Including the cities of Medford, Neillsville, Black River Falls, 
Sparta, Tomah, Mauston, and Friendship
311 AM CST Wed Dec 30 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS
MORNING...

* WHAT...Snow and some patchy freezing drizzle. Additional snow
  accumulations a trace to one inch. Light glaze possible from the
  freezing drizzle.

* WHERE...Portions of central, north central and west central 
  Wisconsin. 

* WHEN...Until 9 AM CST Wednesday.

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

&&

$$

IAZ010-011-029-030-MNZ079-088-096-WIZ032-033-041-053>055-301200-
/O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/
Winneshiek-Allamakee-Fayette-Clayton-Wabasha-Winona-Houston-
Buffalo-Trempealeau-La Crosse-Vernon-Crawford-Richland-
Including the cities of Decorah, Waukon, Oelwein, Elkader, 
Wabasha, Winona, Caledonia, Alma, Arcadia, Whitehall, La Crosse, 
Viroqua, Prairie Du Chien, and Richland Center
311 AM CST Wed Dec 30 2020

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

* WHAT...Snow and some patchy freezing drizzle. Additional snow
  accumulations a trace to one inch. Light glaze possible from the
  freezing drizzle.

* WHERE...Portions of southwest and west central Wisconsin, 
  north central and northeast Iowa and southeast Minnesota. 

* WHEN...Until 6 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.

&&

$$

DAS
339 
WWUS43 KARX 301118
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
518 AM CST Wed Dec 30 2020

Some light snow, mixing with or changing to freezing drizzle
continues to push across the area. Additional snow amounts will
be minimal with possibly some glazing from the freezing drizzle.
The combination of this light precipitation and snow covered
roads will make travel slippery to hazardous early this morning.

IAZ010-011-029-030-MNZ079-088-096-WIZ032-033-041-053>055-301230-
/O.CAN.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/
Winneshiek-Allamakee-Fayette-Clayton-Wabasha-Winona-Houston-
Buffalo-Trempealeau-La Crosse-Vernon-Crawford-Richland-
Including the cities of Decorah, Waukon, Oelwein, Elkader, 
Wabasha, Winona, Caledonia, Alma, Arcadia, Whitehall, La Crosse, 
Viroqua, Prairie Du Chien, and Richland Center
518 AM CST Wed Dec 30 2020

...WINTER WEATHER ADVISORY IS CANCELLED...

The National Weather Service in La Crosse has cancelled the
Winter Weather Advisory. 

Precipitation has moved out of the area. Therefore, the Winter
Weather Advisory has been cancelled.

$$

WIZ042>044-061-301230-
/O.CAN.KARX.WW.Y.0021.000000T0000Z-201230T1500Z/
Monroe-Juneau-Adams-Grant-
Including the cities of Sparta, Tomah, Mauston, Friendship, 
and Platteville
518 AM CST Wed Dec 30 2020

...WINTER WEATHER ADVISORY IS CANCELLED...

The National Weather Service in La Crosse has cancelled the
Winter Weather Advisory. 

Precipitation has moved out of the area. Therefore, the Winter
Weather Advisory has been cancelled.

$$

WIZ017-029-034-301500-
/O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1500Z/
Taylor-Clark-Jackson-
Including the cities of Medford, Neillsville, 
and Black River Falls
518 AM CST Wed Dec 30 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS
MORNING...

* WHAT...Light snow and some patchy freezing drizzle this morning.
  Additional snow accumulations a trace to 1/2 inch. Light glaze 
  possible from the freezing drizzle. 

* WHERE...Portions of central, north central and west central 
  Wisconsin. 

* WHEN...Until 9 AM CST Wednesday.

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

&&

$$
844 
WWUS43 KARX 301445
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
845 AM CST Wed Dec 30 2020

...Snow Ending...Slippery Travel Continues...

.The bulk of the accumulating snows have exited east this 
morning, and the advisory will be allowed to expire. 

However, slippery travel from snow covered roads will
persist through the day. Slow down and exercise caution if
traveling. 

WIZ017-029-034-301545-
/O.EXP.KARX.WW.Y.0021.000000T0000Z-201230T1500Z/
Taylor-Clark-Jackson-
Including the cities of Medford, Neillsville, 
and Black River Falls
845 AM CST Wed Dec 30 2020

...WINTER WEATHER ADVISORY WILL EXPIRE AT 9 AM CST THIS MORNING...

The bulk of the accumulating snows have come to an end and the
advisory will be allowed to expire.

However, slippery travel from snow covered roads will
persist through the day. Slow down and exercise caution if
traveling. 

$$

Rieck

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 La Crosse, WI wrote its last area forecast discussion before this winter weather advisory went out at Dec 27, 10:40 PM CST, 5 hours 5 minutes earlier.

Area forecast discussion, Dec 27, 10:40 PM CST, 5 hours 5 minutes before
Area Forecast Discussion
National Weather Service La Crosse WI
1040 PM CST Sun Dec 27 2020

.SHORT TERM...(Tonight through Monday night)
Issued at 148 PM CST Sun Dec 27 2020

It took awhile, but saturation finally occurred today as short wave
passes through the area. Drier air led to saturation in a cooler
temperature range producing mainly snow, outside of a brief period
of mixed precipitation in far southern areas earlier. Deformation
bands will continue to produce some light accumulations and impacts
on highways mainly in Wisconsin heading into the evening. Not great
timing for travelers as holiday weekend ends. Advisories continue
for parts of central and southwest Wisconsin.

This system should continue to progress east fairly quickly with
snow ending from west to east. Expect some subsidence behind this
wave with peaks at sun on Monday.

Depending on clearing, light winds Monday night could lead to a
chilly but quiet night.

.LONG TERM...(Tuesday through Sunday)
Issued at 148 PM CST Sun Dec 27 2020

Had made assumptions yesterday that the midweek storm might start
looking a little clearer by today. I should know better than that.
While medium range guidance may be coming together on some aspects,
still seeing differences run to run and ensemble members are
becoming more spread which does not help confidence much.

One item that has become more uniform in 27/00z and 27/12z guidance
is keeping approaching short wave out of the southwest more of an
open wave now. This will translate to a faster system. More
influence too from northern short wave trough which also boosts
confidence in faster translation. Also better agreement in timing
because of this, with main impact area moving in late Tuesday.
Influence of northern short wave may push main snow axis a little
further south and east than earlier suggestions, as noted in drift
of 27.12z GFS. Items to keep an eye on.

While there is still ample moisture with this system, progressive
nature in model trends suggest warm layer may be more limited, or at
least not advect as far north. Still could see brief window of 1-3C
layer and brief melting in south, but more likely time for any
freezing precipitation would be with dry slot and loss of saturation
behind main precipitation shield. Certainly main focus will be
snowfall and related impacts though.

Higher snowfall rates with this system expected Tuesday evening and
into the overnight ahead of main wave as upper air dynamics,
including diffluent jet flow, associated lift, moisture advection all
increase and come together. In fact, higher snowfall rates will be
keen at start of this event to reach higher totals. Refinement of
snowfall totals certainly will take place next 48 hours but still
seems like low end warning criteria with general 4 to 8 inch band
across area. Feeling like more conservative approach given trends
might be best so might need to use wider probability ranges
initially. Mean of 50 ECMWF EPS has gone from 8 to 7 to 6 inches
over past 3 runs at KLSE /La Crosse, WI/ so just doesnt support a
more aggressive forecast. Faster overall speed should bring end to
precipitation Wednesday but lingering impacts likely.

Lots of great collaboration between WPC and surrounding forecast
offices today. With previous mentioned reasoning, lower trends, and
ongoing advisory, have opted to hold off on any watches at this
point. But fully expect a watch in later shifts as event draws
closer.

Active flow out of southwest may not end with 2020. Now seeing
suggestions in outer ranges of another potential short wave ejecting
out of Texas late in the week and lifting toward Great Lakes. This
too would have ample moisture to work with, including a more favored
deformation zone compared to midweek system. Too far out for details
and exact track but given some consistencies between ECMWF and GFS,
could see another snow event impact the region to start the New Year.

&&

.AVIATION...(For the 06Z TAFS through 06Z Monday night)
Issued at 1040 PM CST Sun Dec 27 2020

Cigs: MVFR could linger into the overnight, but briefly, before
generally SCT/VFR through the overnight. Another upper level
shortwave/sfc front slides through the region and looks to bring
more MVFR cigs after 18z Mon. These should shift southeast of the
TAF sites later Mon evening thanks to a sfc high moving in.

WX/vsby: the shortwave looks to suffer from deeper saturation and is
somewhat weakly forced. Could see some flurries out of its
associated cloud band, but not looking for impactful -sn at this
time.

Winds: northwest becoming a bit more westerly for Mon afternoon.
Mostly holding near 10 kts.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...None.
MN...None.
IA...None.
&&

SHORT TERM...Shea
LONG TERM...Shea
AVIATION....Rieck
Hazardous weather outlook, Dec 27, 6:58 PM CST, 8 hours 47 minutes before
Hazardous Weather Outlook
National Weather Service La Crosse WI
658 PM CST Sun Dec 27 2020

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-281000-
Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-
Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau-
Adams-Vernon-Crawford-Richland-Grant-
658 PM CST Sun Dec 27 2020

This Hazardous Weather Outlook is for parts of southeast
Minnesota...northeast Iowa and southwest into central Wisconsin.

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

A winter storm will bring snow and travel hazards to the area
later Tuesday into early Wednesday morning. Amounts from 4 to 7
inches are expected, but this could change if the track and
strength of the storm alters from current expectations. A brief
period of a wintry mix could also occur at the start and end of
the storm. The bulk of the snow looks to fall Tuesday night.

.SPOTTER INFORMATION STATEMENT...

Snowfall reports are appreciated.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

nofwd

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 28, 3:45 AM CSTWinter Storm WatchARXAllamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 1 more11 hr
Dec 28, 2:31 PM CSTWinter Storm WarningARXAllamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 1 more37 hr

Nearby

Winter Weather Advisories in Wisconsin, 2020Winter Weather Advisories in Iowa, 2020Winter Weather Advisories in Minnesota, 2020Every winter weather advisory in 2020

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.