Alert archive / Iowa / Wind Chill Advisories in 2020

Wind Chill Advisory 2, NWS La Crosse, WI

January 18, 20207 counties in Wisconsin; 7 counties in Minnesota; 8 counties in Iowa

NWS La Crosse, WI issued this wind chill advisory at Jan 18, 2020, 2:18 PM CST for 7 counties in Wisconsin; 7 counties in Minnesota; 8 counties in Iowa. It took effect at Jan 18, 2020, 6:00 PM CST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Jan 18, 2020, 2:18 PM CST (20:18 UTC)
In effect from
Jan 18, 2020, 6:00 PM CST
Expired
Jan 19, 2020, 12:00 PM CST
In force
18 hr
Issued by
NWS La Crosse, WI
All 22 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, Buffalo County, WI, Crawford County, WI, Grant County, WI, La Crosse County, WI, Richland County, WI, Trempealeau County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 57 km from the middle of the area, began a volume at 20:18 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 12:00Z, 8.3 hours before the alert went out and 204 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 12:00Z on 2020-01-18Temperature 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 12:00Z on 2020-01-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 178 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
486 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
178 m²/s²
0-3 km storm-relative helicity
368 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

239 
WWUS43 KARX 182018
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
218 PM CST Sat Jan 18 2020

...Blizzard Conditions for Parts of Southeast Minnesota and
Northeast Iowa with Cold Wind Chills Tonight...

Whiteout conditions continue to be reported at times across open
and unsheltered areas of northeast Iowa and southeast Minnesota as
northwest winds gust to near 40 mph. Elsewhere, areas of blowing
and drifting snow will continue through late afternoon, with
hazardous travel continuing in many areas. By this evening and
tonight, wind chill readings will dip to 20 to 30 below zero, with
gradual improvement expected through Sunday morning.

IAZ008-009-018-019-MNZ086-087-094-095-190600-
/O.NEW.KARX.WC.Y.0002.200119T0000Z-200119T1800Z/
/O.CON.KARX.BZ.W.0001.000000T0000Z-200119T0000Z/
Mitchell-Howard-Floyd-Chickasaw-Dodge-Olmsted-Mower-Fillmore-
Including the cities of Osage, Cresco, Charles City, New Hampton,
Dodge Center, Rochester, Austin, and Preston
218 PM CST Sat Jan 18 2020

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON
CST SUNDAY...

The National Weather Service in La Crosse has issued a Wind Chill
Advisory, which is in effect from 6 PM this evening to noon CST
Sunday. 

* WHAT...Widespread blowing and drifting snow through late
  afternoon, with whiteout conditions at times, especially outside
  of cities and towns. Northwest winds gusting to 40 mph into late
  afternoon. Wind chill readings tonight into Sunday morning of 
  25 to 30 below zero.

* WHERE...Portions of southeast Minnesota and northeast Iowa.

* WHEN...Blizzard Warning until 6 PM. Wind Chill Advisory from 6 
  PM through noon Sunday.

* IMPACTS...Plan on dangerous travel conditions with significantly
  lowered visibility, particularly for open and unsheltered areas
  outside of towns. Wind chills of 25 to 30 below zero tonight
  could cause frostbite on exposed skin in as little as 15 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling or blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions, making travel extremely dangerous. Do not travel if
at all possible. If you must travel, have a winter survival kit
with you. If you get stranded, stay with your vehicle.

A Wind Chill Advisory means that very cold air and strong winds
will combine to generate low wind chills. This will result in
frost bite and lead to hypothermia if precautions are not taken. 
If you must venture outdoors, make sure you wear a hat and 
gloves.

&&

$$

IAZ010-029-030-190600-
/O.NEW.KARX.WC.Y.0002.200119T0000Z-200119T1800Z/
/O.CON.KARX.WS.W.0001.000000T0000Z-200119T0000Z/
Winneshiek-Fayette-Clayton-
Including the cities of Decorah, Oelwein, and Elkader
218 PM CST Sat Jan 18 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON
CST SUNDAY...

The National Weather Service in La Crosse has issued a Wind Chill
Advisory, which is in effect from 6 PM this evening to noon CST
Sunday. 

* WHAT...Northwest winds gusting to 40 mph this afternoon,
  resulting in areas of blowing and drifting snow. Periodic
  whiteout conditions could occur along ridge tops. Wind chill
  readings of 20 to 30 below zero tonight into Sunday morning.

* WHERE...Portions of northeast Iowa.

* WHEN...Winter Storm Warning until 6 PM. Wind Chill Advisory from
  6 PM through noon Sunday.

* IMPACTS...Plan on hazardous road conditions and areas of blowing
  snow with significantly reduced visibility. Cold wind chills as
  low as 30 below zero tonight could cause frostbite on exposed 
  skin in as little as 30 minutes. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

A Wind Chill Advisory means that very cold air and strong winds
will combine to generate low wind chills. This will result in
frost bite and lead to hypothermia if precautions are not taken. 
If you must venture outdoors, make sure you wear a hat and 
gloves.

&&

$$

MNZ079-088-WIZ032-033-190600-
/O.NEW.KARX.WC.Y.0002.200119T0000Z-200119T1800Z/
/O.CON.KARX.WS.W.0001.000000T0000Z-200119T0000Z/
Wabasha-Winona-Buffalo-Trempealeau-
Including the cities of Wabasha, Winona, Alma, Arcadia, 
and Whitehall
218 PM CST Sat Jan 18 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON
CST SUNDAY...

The National Weather Service in La Crosse has issued a Wind Chill
Advisory, which is in effect from 6 PM this evening to noon CST
Sunday. 

* WHAT...Northwest winds gusting to 40 mph this afternoon,
  resulting in areas of blowing and drifting snow. Periodic
  whiteout conditions could occur along ridge tops. Wind chill
  readings of 20 to 25 below zero tonight into Sunday morning.

* WHERE...In Wisconsin, Trempealeau, Buffalo and Jackson 
  Counties. In Minnesota, Winona and Wabasha Counties. 

* WHEN...Winter Storm Warning until 6 PM. Wind Chill Advisory from
  6 PM through noon Sunday.

* IMPACTS...Plan on hazardous road conditions and areas of blowing
  snow with significantly reduced visibility. Cold wind chills as
  low as 25 below zero tonight could cause frostbite on exposed 
  skin in as little as 30 minutes. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

A Wind Chill Advisory means that very cold air and strong winds
will combine to generate low wind chills. This will result in
frost bite and lead to hypothermia if precautions are not taken. 
If you must venture outdoors...make sure you wear a hat and
gloves.

&&

$$

WIZ017-029-034-190000-
/O.CON.KARX.WS.W.0001.000000T0000Z-200119T0000Z/
Taylor-Clark-Jackson-
Including the cities of Medford, Neillsville, 
and Black River Falls
218 PM CST Sat Jan 18 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Northwest winds gusting to 40 mph this afternoon,
  resulting in areas of blowing and drifting snow. Periodic
  whiteout conditions could occur along ridge tops. Wind chill
  readings of 10 to 20 below zero tonight.

* WHERE...In Wisconsin, Trempealeau, Buffalo and Jackson 
  Counties. In Minnesota, Winona and Wabasha Counties. 

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Plan on hazardous road conditions and areas of 
  blowing snow with significantly reduced visibility. Cold wind 
  chills as low as 20 below zero tonight could cause frostbite 
  on exposed skin in as little as 30 minutes. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

IAZ011-MNZ096-WIZ041-053>055-061-190600-
/O.NEW.KARX.WC.Y.0002.200119T0000Z-200119T1800Z/
/O.CON.KARX.WW.Y.0007.000000T0000Z-200119T0000Z/
Allamakee-Houston-La Crosse-Vernon-Crawford-Richland-Grant-
Including the cities of Waukon, Caledonia, La Crosse, Viroqua, 
Prairie Du Chien, Richland Center, and Platteville
218 PM CST Sat Jan 18 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON
CST SUNDAY...

The National Weather Service in La Crosse has issued a Wind Chill
Advisory, which is in effect from 6 PM this evening to noon CST
Sunday. 

* WHAT...Northwest winds gusting to 40 mph this afternoon,
  resulting in some blowing and drifting snow. Wind chill readings
  of 15 to 25 below zero tonight into Sunday morning.

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

* WHEN...Winter Weather Advisory until 6 PM. Wind Chill Advisory 
  from 6 PM through noon Sunday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing
  snow will significantly reduce visibility at times for open and
  unsheltered areas. Cold wind chills as low as 25 below zero 
  tonight could cause frostbite on exposed skin in as little as 30
  minutes. 

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.

A Wind Chill Advisory means that very cold air and strong winds
will combine to generate low wind chills. This will result in
frost bite and lead to hypothermia if precautions are not taken. 
If you must venture outdoors...make sure you wear a hat and
gloves.

&&

$$

WIZ042>044-190000-
/O.CON.KARX.WW.Y.0007.000000T0000Z-200119T0000Z/
Monroe-Juneau-Adams-
Including the cities of Sparta, Tomah, Mauston, and Friendship
218 PM CST Sat Jan 18 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Northwest winds gusting to 40 mph this afternoon, 
  resulting in some blowing and drifting snow. Rapidly falling 
  temperatures this afternoon. 

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

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow will significantly reduce visibility at times for open 
  and unsheltered areas. Cold wind chills as low as 20 below 
  zero tonight could cause frostbite on exposed skin in as 
  little as 30 minutes. 

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.

&&

$$

Lawrence
6 follow-up statements
481 
WWUS43 KARX 182348
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
548 PM CST Sat Jan 18 2020

...Winds Slowly Decreasing...Bitter Cold Wind Chills Tonight...

Winds will remains strong and gusty through the evening, but they
are on a slow decrease. Impacts on visibility from blowing snow
have started to lessen as a result. With conditions expected to
continue to slowly improve through the rest of the night, the
warnings and advisories will be allowed to expire.

Evening travelers should still be alert for some pockets of 
lowered visibilities and drifting snows across roads, mostly in 
open and unsheltered areas. Take it slow. 

While the blowing and drifting impacts from the wind are on a
downward trend, the winds coupled with falling temperatures will
result in wind chills from 20 to 30 below. If venturing into the
cold, limit your exposure and bundle up. Don't forget to protect
your pets from the bitter cold too!

IAZ008-009-018-019-MNZ086-087-094-095-190800-
/O.EXP.KARX.BZ.W.0001.000000T0000Z-200119T0000Z/
/O.CON.KARX.WC.Y.0002.200119T0000Z-200119T1800Z/
Mitchell-Howard-Floyd-Chickasaw-Dodge-Olmsted-Mower-Fillmore-
Including the cities of Osage, Cresco, Charles City, New Hampton,
Dodge Center, Rochester, Austin, and Preston
548 PM CST Sat Jan 18 2020

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST SUNDAY...
...BLIZZARD WARNING WILL EXPIRE AT 6 PM CST THIS EVENING...

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

* WHERE...Portions of north central and northeast Iowa and 
  southeast Minnesota.

* WHEN...Until noon CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ010-029-030-190800-
/O.EXP.KARX.WS.W.0001.000000T0000Z-200119T0000Z/
/O.CON.KARX.WC.Y.0002.200119T0000Z-200119T1800Z/
Winneshiek-Fayette-Clayton-
Including the cities of Decorah, Oelwein, and Elkader
548 PM CST Sat Jan 18 2020

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST SUNDAY...
...WINTER STORM WARNING WILL EXPIRE AT 6 PM CST THIS EVENING...

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

* WHERE...Winneshiek, Clayton and Fayette Counties.

* WHEN...Until noon CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MNZ079-088-WIZ032-033-190800-
/O.EXP.KARX.WS.W.0001.000000T0000Z-200119T0000Z/
/O.CON.KARX.WC.Y.0002.200119T0000Z-200119T1800Z/
Wabasha-Winona-Buffalo-Trempealeau-
Including the cities of Wabasha, Winona, Alma, Arcadia, 
and Whitehall
548 PM CST Sat Jan 18 2020

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST SUNDAY...
...WINTER STORM WARNING WILL EXPIRE AT 6 PM CST THIS EVENING...

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

* WHERE...In Wisconsin, Trempealeau and Buffalo Counties. In 
  Minnesota, Winona and Wabasha Counties.

* WHEN...Until noon CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WIZ017-029-034-190100-
/O.EXP.KARX.WS.W.0001.000000T0000Z-200119T0000Z/
Taylor-Clark-Jackson-
Including the cities of Medford, Neillsville, 
and Black River Falls
548 PM CST Sat Jan 18 2020

...WINTER STORM WARNING WILL EXPIRE AT 6 PM CST THIS EVENING...

Impacts from snow and wind are diminishing across the area, and
will continue to do so for the rest of the night. The winter
storm warning will be allowed to expire as a result.

$$

IAZ011-MNZ096-WIZ041-053>055-061-190800-
/O.EXP.KARX.WW.Y.0007.000000T0000Z-200119T0000Z/
/O.CON.KARX.WC.Y.0002.200119T0000Z-200119T1800Z/
Allamakee-Houston-La Crosse-Vernon-Crawford-Richland-Grant-
Including the cities of Waukon, Caledonia, La Crosse, Viroqua, 
Prairie Du Chien, Richland Center, and Platteville
548 PM CST Sat Jan 18 2020

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST SUNDAY...
...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM CST THIS EVENING...

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

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

* WHEN...Until noon CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WIZ042>044-190100-
/O.EXP.KARX.WW.Y.0007.000000T0000Z-200119T0000Z/
Monroe-Juneau-Adams-
Including the cities of Sparta, Tomah, Mauston, and Friendship
548 PM CST Sat Jan 18 2020

...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM CST THIS EVENING...

Impacts from snow and wind are diminishing across the area, and
will continue to do so for the rest of the night. The winter
weather advisory will be allowed to expire as a result. 

$$

Rieck
854 
WWUS43 KARX 190838
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
238 AM CST Sun Jan 19 2020

...Bitter Cold Wind Chills This Morning...

Plan on wind chills this morning in the 20 to 30 below range,
gradually improving by midday. If venturing into the cold this 
morning, limit your exposure and bundle up. 

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ032-033-041-
053>055-061-191645-
/O.CON.KARX.WC.Y.0002.000000T0000Z-200119T1800Z/
Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-
Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Buffalo-Trempealeau-La Crosse-Vernon-Crawford-Richland-Grant-
Including the cities of Osage, Cresco, Decorah, Waukon, 
Charles City, New Hampton, Oelwein, Elkader, Wabasha, 
Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, 
Alma, Arcadia, Whitehall, La Crosse, Viroqua, Prairie Du Chien, 
Richland Center, and Platteville
238 AM CST Sun Jan 19 2020

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

* WHAT...Very cold wind chills. Wind chills as low as 30 below 
  zero.

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

* WHEN...Until noon CST today.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

DAS
776 
WWUS43 KARX 191254
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
654 AM CST Sun Jan 19 2020

...Bitter Cold Wind Chills Continue This Morning...

Bitter cold wind chills this morning in the -20 to -30 below 
range will gradually improve by midday. If venturing out this
morning, protect yourself against the cold. Limit your exposure 
and bundle up.

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ032-033-041-
053>055-061-191800-
/O.CON.KARX.WC.Y.0002.000000T0000Z-200119T1800Z/
Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-
Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Buffalo-Trempealeau-La Crosse-Vernon-Crawford-Richland-Grant-
Including the cities of Osage, Cresco, Decorah, Waukon, 
Charles City, New Hampton, Oelwein, Elkader, Wabasha, 
Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, 
Alma, Arcadia, Whitehall, La Crosse, Viroqua, Prairie Du Chien, 
Richland Center, and Platteville
654 AM CST Sun Jan 19 2020

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

* WHAT...Very cold wind chills. Wind chills as low as 30 below 
  zero. 

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

* WHEN...Until noon CST today.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

DAS
956 
WWUS43 KARX 191255 CCA
WSWARX

URGENT - WINTER WEATHER MESSAGE...CORRECTED
National Weather Service La Crosse WI
655 AM CST Sun Jan 19 2020

...Bitter Cold Wind Chills Continue This Morning...

Bitter cold wind chills this morning in the -20 to -30 range will
gradually improve by midday. If venturing out this morning, 
protect yourself against the cold. Limit your exposure and bundle 
up.

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ032-033-041-
053>055-061-191800-
/O.CON.KARX.WC.Y.0002.000000T0000Z-200119T1800Z/
Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-
Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Buffalo-Trempealeau-La Crosse-Vernon-Crawford-Richland-Grant-
Including the cities of Osage, Cresco, Decorah, Waukon, 
Charles City, New Hampton, Oelwein, Elkader, Wabasha, 
Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, 
Alma, Arcadia, Whitehall, La Crosse, Viroqua, Prairie Du Chien, 
Richland Center, and Platteville
655 AM CST Sun Jan 19 2020

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

* WHAT...Very cold wind chills. Wind chills as low as 30 below 
  zero. 

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

* WHEN...Until noon CST today.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

DAS
780 
WWUS43 KARX 191548
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
948 AM CST Sun Jan 19 2020

...Wind Chills Gradually Improving...

Bitter cold wind chills of 15 to 25 below zero will continue
through midday for much of southeast Minnesota into northeast
Iowa. If venturing out this morning, protect yourself against the
cold. Limit your exposure and bundle up in layers.

IAZ011-030-MNZ079-088-096-WIZ032-033-041-053>055-061-191700-
/O.CAN.KARX.WC.Y.0002.000000T0000Z-200119T1800Z/
Allamakee-Clayton-Wabasha-Winona-Houston-Buffalo-Trempealeau-
La Crosse-Vernon-Crawford-Richland-Grant-
Including the cities of Waukon, Elkader, Wabasha, Winona, 
Caledonia, Alma, Arcadia, Whitehall, La Crosse, Viroqua, 
Prairie Du Chien, Richland Center, and Platteville
948 AM CST Sun Jan 19 2020

...WIND CHILL ADVISORY IS CANCELLED...

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

Wind chill readings have gradually improved into the 5 to 15 below
zero range as of mid morning. While these values are a little
warmer than overnight readings, please be sure to bundle up in
layers if venturing outdoors today.

$$

IAZ008>010-018-019-029-MNZ086-087-094-095-191800-
/O.CON.KARX.WC.Y.0002.000000T0000Z-200119T1800Z/
Mitchell-Howard-Winneshiek-Floyd-Chickasaw-Fayette-Dodge-Olmsted-
Mower-Fillmore-
Including the cities of Osage, Cresco, Decorah, Charles City, 
New Hampton, Oelwein, Dodge Center, Rochester, Austin, 
and Preston
948 AM CST Sun Jan 19 2020

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

* WHAT...Wind chill readings of 15 to 25 below zero through noon.
 
* WHERE...Much of northeast Iowa and southeast Minnesota.

* WHEN...Until noon CST today.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Lawrence
675 
WWUS43 KARX 191751
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
1151 AM CST Sun Jan 19 2020

IAZ008>010-018-019-029-MNZ086-087-094-095-191900-
/O.EXP.KARX.WC.Y.0002.000000T0000Z-200119T1800Z/
Mitchell-Howard-Winneshiek-Floyd-Chickasaw-Fayette-Dodge-Olmsted-
Mower-Fillmore-
Including the cities of Osage, Cresco, Decorah, Charles City, 
New Hampton, Oelwein, Dodge Center, Rochester, Austin, 
and Preston
1151 AM CST Sun Jan 19 2020

...WIND CHILL ADVISORY WILL EXPIRE AT NOON CST TODAY...

After a very cold start to the day, wind chill readings have
recovered into the 5 to 15 below zero range, and will remain there
for much of the afternoon. If you will be outdoors this afternoon,
please remain aware of and dress appropriately for the cold.

$$

Lawrence

What forecasters said that day

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

NWS La Crosse, WI wrote its last area forecast discussion before this wind chill advisory went out at Jan 18, 11:33 AM CST, 2 hours 45 minutes earlier.

Area forecast discussion, Jan 18, 11:33 AM CST, 2 hours 45 minutes before
Area Forecast Discussion
National Weather Service La Crosse WI
1133 AM CST Sat Jan 18 2020

.SHORT TERM...(Today and tonight)
Issued at 315 AM CST Sat Jan 18 2020

Latest water vapor satellite imagery shows upper level low over the
Northern Plains with a couple of shortwave troughs rotating
around upper level low into the region. Latest 08z surface
analysis indicated a cold front extending from northwest Minnesota
to western Iowa. Out ahead of the cold front freezing drizzle was
falling and light snow was falling behind the front...per latest
mosaic radar and metars.

Concern today is the potential of blowing and drifting of snow in
open areas of southeast Minnesota and northeast Iowa. Surface front
is expected to move across the forecast area. Tight pressure
gradient behind the front will increase the winds out of the
northwest to 20 to 30 mph with gusts up to 40 mph. The
combination of subsidence/greatest pressure rises southwest of the
forecast area and a layer of ice crust on top of the recent snow
due to freezing drizzle overnight...may prohibit blowing and
drifting snow in open areas of southeast Minnesota and northeast
Iowa. At this time...not looking at any widespread
blowing snow across the forecast and continue mention of patchy
to areas of blowing/drifting snow in open areas.

With the surface frontal passage...colder airmass advects into the
forecast area and temperatures during the day will fall into the
single digits to the teens by early this evening. Strong winds and
temperatures falling into the single digits below zero tonight will
produce wind chill values in the minus 15 to minus 30 range. Wind
chill advisories most likely will be needed tonight into Sunday
morning.

.LONG TERM...(Sunday through Friday)
Issued at 315 AM CST Sat Jan 18 2020

Sunday into Monday...Arctic surface ridge builds into the area.
Colder airmass remains entrenched over the forecast area...with
925mb temperatures progged to be minus 10 to minus 20 degrees
celsius. Low temperatures Sunday morning are expected to drop into
the single digits below zero...and combined with the winds. Wind
chill values Sunday morning will be in the minus 15 to minus 25
range across the forecast area. Weak shortwave embedded in the
northwesterly flow aloft tracks into the Northern Plains Sunday
night into Monday morning. The 18.00z GFS/NAM indicate the deeper
lift/saturation remains west of the forecast area. The 18.00z
deterministic models bufkit soundings show saturation through the
atmosphere column and the potential is there for flurries Sunday
night into Monday. Have introduced flurries during this time
frame.

Main forecast concerns Tuesday night into Friday are
precipitation chances through the period. The latest 18.00z
GFS/ECMWF/GEM are in decent agreement with breaking down shortwave
ridging over the Upper Great Lakes Region and cut off upper level
low over the central United States middle of next week. Pieces of
energy ejecting out/rotating around the closed upper level low
into the Upper Midwest will produce chances of precipitation
middle to late next week. Precipitation type will be an issue...as
the deterministic models are suggesting temperatures rising into
the 30s/above freezing middle of next week.

&&

.AVIATION...(For the 18Z TAFS through 18Z Sunday afternoon)
Issued at 1133 AM CST Sat Jan 18 2020

Windy conditions will continue across the region through this
evening, with northwest breezes of 15-25 knots gusting up to 40
knots at times before gradually subsiding later tonight into
Sunday morning. Those winds will lead to widespread blowing snow
at RST, with visibility down to 1/4-1/2SM at times, while LSE
shouldn't see any blowing snow impacts due to its more sheltered
location. Occasional flurries will also continue for most of the
area into the afternoon, with MVFR ceilings gradually lifting to
VFR for a time tonight before again returning to MVFR levels
toward or after 09Z as additional moisture works back into the
area.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...Winter Weather Advisory until 6 PM CST this evening for
     WIZ041>044-053>055-061.

     Winter Storm Warning until 6 PM CST this evening for WIZ017-029-
     032>034.

MN...Blizzard Warning until 6 PM CST this evening for MNZ086-087-094-
     095.

     Winter Weather Advisory until 6 PM CST this evening for MNZ096.

     Winter Storm Warning until 6 PM CST this evening for MNZ079-088.

IA...Blizzard Warning until 6 PM CST this evening for IAZ008-009-018-
     019.

     Winter Weather Advisory until 6 PM CST this evening for IAZ011.

     Winter Storm Warning until 6 PM CST this evening for IAZ010-029-
     030.

&&

SHORT TERM...DTJ
LONG TERM...DTJ
AVIATION...Lawrence
Hazardous weather outlook, Jan 18, 9:24 AM CST, 4 hours 54 minutes before
Hazardous Weather Outlook
National Weather Service La Crosse WI
924 AM CST Sat Jan 18 2020

IAZ010-029-030-MNZ079-088-191530-
Winneshiek-Fayette-Clayton-Wabasha-Winona-
924 AM CST Sat Jan 18 2020

This Hazardous Weather Outlook is for portions northeast Iowa and
southeast Minnesota.

.DAY ONE...Today and Tonight

A Winter Storm Warning is in effect today.

Light snow accumulations up to 1/2 inch are expected. Strong west
to northwest winds gusting to 40 to 50 mph later this morning
into this afternoon will produce areas of blowing and drifting
snow with some significant reductions in visibility in open areas.
Expect hazardous driving conditions today.

Wind chills of 20 to 30 below zero are likely tonight into Sunday
morning.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Snow chances move back into the area Wednesday, lasting through
Friday. It is too early to discern snow amounts but travel could
be impacted at times.

.SPOTTER INFORMATION STATEMENT...

Any snow or ice reports would be appreciated.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

WIZ017-029-032>034-191530-
Taylor-Clark-Buffalo-Trempealeau-Jackson-
924 AM CST Sat Jan 18 2020

This Hazardous Weather Outlook is for portions of central
Wisconsin...north central Wisconsin and west central Wisconsin.

.DAY ONE...Today and Tonight

A Winter Storm Warning is in effect today.

Additional snowfall of 1 to 2 inches is expected today with
areas of blowing and drifting snow in unsheltered areas.
Significant visibility reductions are expected at times with
slippery and hazardous travel.

Winds chills of 15 to 25 below zero are likely tonight into
Sunday morning.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Snow chances move back into the area Wednesday, lasting through
Friday. It is too early to discern snow amounts but travel could
be impacted at times.

.SPOTTER INFORMATION STATEMENT...

Any snow reports would be appreciated.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

IAZ011-MNZ096-WIZ041>044-053>055-061-191530-
Allamakee-Houston-La Crosse-Monroe-Juneau-Adams-Vernon-Crawford-
Richland-Grant-
924 AM CST Sat Jan 18 2020

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

.DAY ONE...Today and Tonight

A Winter Weather Advisory is in effect today.

Additional snowfall of up to 1 inch is expected today with
slippery travel. Northwest winds gusting to 40 mph will result in
patchy blowing and drifting snow.

Winds chills of 15 to 25 below zero are likely tonight into
Sunday morning.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Snow chances move back into the area Wednesday, lasting through
Friday. It is too early to discern snow amounts but travel could
be impacted at times.

.SPOTTER INFORMATION STATEMENT...

Any snow reports would be appreciated.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

IAZ008-009-018-019-MNZ086-087-094-095-191530-
Mitchell-Howard-Floyd-Chickasaw-Dodge-Olmsted-Mower-Fillmore-
924 AM CST Sat Jan 18 2020

This Hazardous Weather Outlook is for portions northeast Iowa and
southeast Minnesota.

.DAY ONE...Today and Tonight

A Blizzard Warning is in effect today.

Strong winds gusting up to 40 to 50 mph at times along with light
snow will produce whiteouts in open areas. Snow accumulations less
than an inch are expected. Travel will be dangerous.

Winds chills of 20 to 30 below zero are likely tonight into
Sunday morning.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Winds chills of 15 to 25 below zero are likely Sunday night.

Snow chances move back into the area Wednesday, lasting through
Friday. It is too early to discern snow amounts but travel could
be impacted at times.

.SPOTTER INFORMATION STATEMENT...

Any snow reports would be appreciated.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

In the hours before

Local storm report, Jan 18, 10:33 AM CST, 3 hours 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1033 AM CST SAT JAN 18 2020

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

0700 AM     SNOW             DORCHESTER              45.00N 90.33W
01/18/2020  E6.0 INCH        CLARK              WI   PUBLIC

            RELAYED VIA SOCIAL MEDIA.

&&
Local storm report, Jan 18, 10:50 AM CST, 3 hours 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1050 AM CST SAT JAN 18 2020

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

1049 AM     SNOW             1 SW ROCHESTER          44.00N 92.49W
01/18/2020  E4.5 INCH        OLMSTED            MN   PUBLIC

            RELAYED VIA SOCIAL MEDIA.

&&
Local storm report, Jan 18, 10:53 AM CST, 3 hours 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1053 AM CST SAT JAN 18 2020

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

1050 AM     FREEZING RAIN    ROCHESTER AIRPORT       43.90N 92.49W
01/18/2020  M0.20 INCH       OLMSTED            MN   ASOS

&&
Local storm report, Jan 18, 12:38 PM CST, 1 hour 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1238 PM CST SAT JAN 18 2020

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

1237 PM     SNOW             1 N ONALASKA            43.90N 91.23W
01/18/2020  M3.5 INCH        LA CROSSE          WI   TRAINED SPOTTER

1237 PM     SNOW             1 SW AUSTIN             43.66N 92.98W
01/18/2020  E4.5 INCH        MOWER              MN   PUBLIC

            RELAYED VIA SOCIAL MEDIA.

&&
Local storm report, Jan 18, 1:15 PM CST, 1 hour 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
115 PM CST SAT JAN 18 2020

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

0700 AM     SNOW             2 NNE OWEN              44.98N 90.55W
01/18/2020  M8.0 INCH        CLARK              WI   CO-OP OBSERVER

            CO-OP OBSERVER STATION OWEW3 OWEN 2 N.

0700 AM     SNOW             2 NE KASSON             44.05N 92.72W
01/18/2020  M5.0 INCH        DODGE              MN   COCORAHS

            COCORAHS STATION MN-DD-3 MANTORVILLE 1.9
            ESE.

0800 AM     SNOW             3 N LA CRESCENT         43.87N 91.31W
01/18/2020  M4.0 INCH        WINONA             MN   CO-OP OBSERVER

            CO-OP OBSERVER STATION LCRM5 LA CRESCENT DAM
            7.

0700 AM     SNOW             1 NE MELVINA            43.81N 90.76W
01/18/2020  M3.4 INCH        MONROE             WI   COCORAHS

            COCORAHS STATION WI-MN-5 CASHTON 4.8 N.

1030 AM     SNOW             1 SW WINONA             44.03N 91.68W
01/18/2020  M3.0 INCH        WINONA             MN   COCORAHS

            COCORAHS STATION MN-WN-11 WINONA 1.3 SSW.

1256 PM     SNOW             4 W STEVENSTOWN         44.04N 91.26W
01/18/2020  M2.9 INCH        LA CROSSE          WI   NWS EMPLOYEE

0952 AM     SNOW             MUSCODA                 43.18N 90.44W
01/18/2020  M2.4 INCH        GRANT              WI   COCORAHS

            COCORAHS STATION WI-GT-6 MUSCODA 0.5 WSW.

0700 AM     SNOW             ELMA                    43.24N 92.44W
01/18/2020  M2.2 INCH        HOWARD             IA   CO-OP OBSERVER

            CO-OP OBSERVER STATION ELMI4 ELMA.

0745 AM     SNOW             5 ESE DECORAH           43.26N 91.70W
01/18/2020  M1.9 INCH        WINNESHIEK         IA   COCORAHS

            COCORAHS STATION IA-WH-5 DECORAH 4.9SE.

1000 AM     SNOW             5 SW ELBA               44.04N 92.09W
01/18/2020  M0.2 INCH        OLMSTED            MN   COCORAHS

            COCORAHS STATION MN-OL-991 ELBA 4.7 SW.

&&
Local storm report, Jan 18, 1:28 PM CST, 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
128 PM CST SAT JAN 18 2020

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

1200 PM     SNOW             LA CROSSE NWS OFFICE    43.82N 91.19W
01/18/2020  M3.5 INCH        LA CROSSE          WI   OFFICIAL NWS OBS

1200 PM     SNOW             LA CROSSE REGIONAL AIRP 43.87N 91.25W
01/18/2020  M2.8 INCH        LA CROSSE          WI   OFFICIAL NWS OBS

1200 PM     SNOW             ROCHESTER INTERNATIONAL 43.90N 92.49W
01/18/2020  M4.5 INCH        OLMSTED            MN   OFFICIAL NWS OBS

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 18, 9:05 AM CSTBlizzard WarningARXDodge, Fillmore, Mower, Olmsted9 hr

Nearby

Wind Chill Advisories in Iowa, 2020Wind Chill Advisories in Wisconsin, 2020Wind Chill Advisories in Minnesota, 2020Every wind chill 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.