Alert archive / Iowa / Blizzard Warnings in 2024

Blizzard Warning 1, NWS La Crosse, WI

January 12, 20246 counties in Iowa; Grant County, Wisconsin

NWS La Crosse, WI issued this blizzard warning at Jan 12, 2024, 10:56 AM CST for 6 counties in Iowa; Grant County, Wisconsin. It took effect at Jan 12, 2024, 2:49 PM CST. It was in force for 9 hr. 2 reports came from inside the area while it was in force.

The area

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

The facts

Issued
Jan 12, 2024, 10:56 AM CST (16:56 UTC)
In effect from
Jan 12, 2024, 2:49 PM CST
Expired
Jan 13, 2024, 12:00 AM CST
In force
9 hr
Issued by
NWS La Crosse, WI

Counties Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Grant County, WI

The radar

The La Crosse radar (KARX), 108 km from the middle of the area, began a volume at 16:56 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

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

What was reported inside it

TimeReportWhereRemark
Jan 12, 5:41 PM CSTSNOW 5.93 Ssw Beetown, WI
Jan 12, 9:53 PM CSTSNOW 102 Se Blue River, WI

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

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 4.9 hours before the alert went out and 203 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, Davenport, at 12:00Z on 2024-01-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2024-01-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 429 square meters per square second.1939587897117Sfc1 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
513 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
429 m²/s²
0-3 km storm-relative helicity
634 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

715 
WWUS43 KARX 121656
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
1056 AM CST Fri Jan 12 2024

...Dangerous Winter Storm through Early Saturday...

.The winds across parts of northeast Iowa and Grant County in
southwest Wisconsin are expected to strengthen from mid to late 
afternoon and then continue through midnight. Sustained winds will
range from 30 to 35 mph and wind gust will be as high as 45 mph.
Blowing snow will significantly reduce visibility to near white 
out or blizzard conditions at times, especially in rural or open 
areas. 

Heavy snow will continue to fall south of a Charles City 
Iowa to Wisconsin Rapids line. Snow rates will be as high as 1 
inch per hour at times, especially across northeast Iowa through 
southwest and central Wisconsin. Winds will increase later this 
afternoon leading to blowing and drifting in open areas.

Travel will become hazardous for most of the region, potentially
impossible where snowfall and winds are the highest. Consider
altering, delaying or even canceling travel plans if conditions
warrant it.

Bitterly cold air arrives as this storm system exits the area
with wind chills of 20 to 30 below by Saturday night.

IAZ030-WIZ061-130100-
/O.NEW.KARX.BZ.W.0001.240112T2300Z-240113T0600Z/
/O.NEW.KARX.WS.W.0003.240113T0600Z-240113T1800Z/
/O.EXT.KARX.WS.W.0002.000000T0000Z-240112T2300Z/
Clayton-Grant-
Including the cities of Elkader and Platteville
1056 AM CST Fri Jan 12 2024

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

* WHAT...Heavy snow. Additional snow accumulations of 5 to 9
  inches. Winds gusting as high as 45 mph. The highest wind gusts
  will be from 5 PM through midnight. During this time period there
  will be blizzard conditions.

* WHERE...In Iowa, Clayton County. In Wisconsin, Grant County.

* WHEN...Winter Storm Warning until 5 PM CST this afternoon. For
  the Blizzard Warning from 5 PM this afternoon to midnight CST
  tonight. Winter Storm Warning from midnight tonight to noon CST
  Saturday.

* IMPACTS...Travel is not advised from late afternoon through 
  evening. Blowing snow will significantly reduce visibility. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In Iowa, visit 511ia.org for road conditions. In Wisconsin,
visit 511wi.gov for road conditions.

&&

$$

IAZ008-018-019-029-130100-
/O.NEW.KARX.BZ.W.0001.240112T2100Z-240113T0600Z/
/O.NEW.KARX.WS.W.0003.240113T0600Z-240113T1500Z/
/O.EXT.KARX.WS.W.0002.000000T0000Z-240112T2100Z/
Mitchell-Floyd-Chickasaw-Fayette-
Including the cities of Osage, Charles City, New Hampton, 
and Oelwein
1056 AM CST Fri Jan 12 2024

...WINTER STORM WARNING NOW IN EFFECT UNTIL 3 PM CST THIS 
AFTERNOON...
...BLIZZARD WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO MIDNIGHT 
CST TONIGHT...
...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST 
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 3 to 7
  inches. Winds gusting as high as 45 mph. The highest wind gusts
  will be from 3 PM through midnight. During this time period
  there will be blizzard conditions.

* WHERE...Mitchell, Floyd, Chickasaw and Fayette Counties.

* WHEN...Winter Storm Warning through 3 PM CST this afternoon.
  Blizzard Warning from 3 PM this afternoon to midnight CST tonight. 
  Winter Storm Warning from midnight tonight to 9 AM CST Saturday.

* IMPACTS...Travel is not advised from mid-afternoon through 
  evening. Blowing snow will significantly reduce visibility. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Visit 511ia.org for road conditions.

&&

$$

IAZ009-010-MNZ079-086>088-094-095-130100-
/O.CON.KARX.WS.W.0002.000000T0000Z-240113T1500Z/
Howard-Winneshiek-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-
Including the cities of Cresco, Decorah, Wabasha, Dodge Center, 
Rochester, Winona, Austin, and Preston
1056 AM CST Fri Jan 12 2024

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

* WHAT...Heavy snow. Additional snow accumulations of 4 to 9 
  inches. Winds gusting as high as 45 mph.

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

* WHEN...Until 9 AM CST Saturday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In Iowa, visit 511ia.org for road conditions. In Minnesota,
visit 511mn.org for road conditions.

&&

$$

IAZ011-MNZ096-WIZ032>034-041>044-053>055-130100-
/O.CON.KARX.WS.W.0002.000000T0000Z-240113T1800Z/
Allamakee-Houston-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-
Juneau-Adams-Vernon-Crawford-Richland-
Including the cities of Waukon, Caledonia, Alma, Arcadia, 
Whitehall, Black River Falls, La Crosse, Sparta, Tomah, Mauston, 
Friendship, Viroqua, Prairie Du Chien, and Richland Center
1056 AM CST Fri Jan 12 2024

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

* WHAT...Heavy snow. Additional snow accumulations of 7 to 10 
  inches. Winds gusting as high as 40 mph.

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

* WHEN...Until noon CST Saturday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In Iowa, visit 511ia.org for road conditions. In Minnesota,
visit 511mn.org for road conditions. In Wisconsin, visit
511wi.gov for road conditions.

&&

$$

WIZ017-029-130100-
/O.CON.KARX.WS.W.0002.000000T0000Z-240113T1800Z/
Taylor-Clark-
Including the cities of Medford and Neillsville
1056 AM CST Fri Jan 12 2024

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

* WHAT...Heavy snow. Additional snow accumulations of 4 to 7 
  inches. Winds gusting as high as 35 mph.

* WHERE...Taylor and Clark Counties.

* WHEN...Until noon CST Saturday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Visit 511wi.gov for road conditions.

&&

$$

Boyne
4 follow-up statements
539 
WWUS43 KARX 122049
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
249 PM CST Fri Jan 12 2024

...Dangerous Winter Storm Peaking Now and into the Evening...

.A complex winter storm continues to bring heavy snow to central 
and southwest Wisconsin into far northeast Iowa. Winds were also 
on the increase with blowing and drifting now becoming more of a 
problem across parts of Iowa...mainly southwest of Highway 52. 
Further northwest snow was not as heavy and snow amount forecasts 
have been lowered northwest of a line from Austin to Winona 
Minnesota to Medford Wisconsin. The Winter Storm Warning was 
replaced by an Advisory for much of that area. 

The winter storm will continue to bring snow, heaviest east and 
south of the La Crosse - Winona area through the evening before 
becoming lighter. Whiteout conditions will become more widespread 
near and southwest of Highway 52 in northeast Iowa and extreme
southwest Wisconsin. Travel will become more dangerous after 
sunset with darkness and whiteout in blowing snow there as winds 
gust to 45 mph. Consider altering, delaying or even canceling 
travel plans through the evening. 

Bitterly cold air arrives as this storm system exits the area
with wind chills of 20 to 30 below by Saturday night.

IAZ008-018-019-029-130500-
/O.CAN.KARX.WS.W.0002.000000T0000Z-240112T2100Z/
/O.CAN.KARX.WS.W.0003.240113T0600Z-240113T1500Z/
/O.NEW.KARX.WW.Y.0002.240113T0600Z-240114T0000Z/
/O.EXT.KARX.BZ.W.0001.240112T2049Z-240113T0600Z/
Mitchell-Floyd-Chickasaw-Fayette-
Including the cities of Osage, Charles City, New Hampton, 
and Oelwein
249 PM CST Fri Jan 12 2024

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST 
TONIGHT... 
...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT 
TONIGHT TO 6 PM CST SATURDAY...

* WHAT...Blizzard conditions expected with drastically reduced
  visibilities near zero in whiteout conditions. Additional snow 
  accumulations of 1 to 3 inches. Winds gusting as high as 45 mph.

* WHERE...Mitchell, Floyd, Chickasaw and Fayette Counties.

* WHEN...Blizzard Warning, until midnight CST tonight. For the 
  Winter Weather Advisory, from midnight tonight to 6 PM CST 
  Saturday.

* IMPACTS...Travel is not advised through evening. Blowing snow 
  will significantly reduce visibility. The cold wind chills as 
  low as 20 below zero could cause frostbite on exposed skin in as
  little as 30 minutes.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Slow down and use caution while traveling. 

Visit 511ia.org for road conditions.

&&

$$

IAZ030-WIZ061-130500-
/O.CAN.KARX.WS.W.0003.240113T0600Z-240113T1800Z/
/O.NEW.KARX.WW.Y.0002.240113T0600Z-240114T0000Z/
/O.CON.KARX.WS.W.0002.000000T0000Z-240112T2300Z/
/O.CON.KARX.BZ.W.0001.240112T2300Z-240113T0600Z/
Clayton-Grant-
Including the cities of Elkader and Platteville
249 PM CST Fri Jan 12 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM CST THIS
AFTERNOON...
...BLIZZARD WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO
MIDNIGHT CST TONIGHT...
...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM CST SATURDAY...

* WHAT...Blizzard conditions expected with whiteout in open areas.
  Total snow accumulations of 8 to 12 inches. Winds gusting as 
  high as 45 mph. For the Winter Weather Advisory, snow expected. 
  Total snow accumulations of up to two inches. Winds gusting as 
  high as 40 mph.

* WHERE...In Iowa, Clayton County. In Wisconsin, Grant County.

* WHEN...For the Winter Storm Warning, until 5 PM CST this 
  afternoon. For the Blizzard Warning, from 5 PM this afternoon 
  to midnight CST tonight. For the Winter Weather Advisory, from 
  midnight tonight to 6 PM CST Saturday.

* IMPACTS...Travel could be very difficult with heavy snow and
  blowing snow into the evening. Blowing snow will significantly 
  reduce visibility. The hazardous conditions could impact the 
  evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Slow down and use caution while traveling. 

In Iowa, visit 511ia.org for road conditions. In Wisconsin,
visit 511wi.gov for road conditions.

&&

$$

MNZ079-086-087-130500-
/O.CAN.KARX.WS.W.0002.000000T0000Z-240113T1500Z/
/O.NEW.KARX.WW.Y.0002.240112T2049Z-240114T0000Z/
Wabasha-Dodge-Olmsted-
Including the cities of Wabasha, Dodge Center, and Rochester
249 PM CST Fri Jan 12 2024

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM CST SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Total snow accumulations of 3 to 7 inches. Winds 
  gusting as high as 40 mph.

* WHERE...Wabasha, Dodge and Olmsted Counties.

* WHEN...Until 6 PM CST Saturday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing snow
  could significantly reduce visibility. The hazardous conditions
  could impact the evening commute. The cold wind chills as low as
  20 below zero could cause frostbite on exposed skin in as little
  as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Visit 511mn.org for road conditions.

&&

$$

WIZ017-130500-
/O.CAN.KARX.WS.W.0002.000000T0000Z-240113T1800Z/
/O.NEW.KARX.WW.Y.0002.240112T2049Z-240114T0000Z/
Taylor-
Including the city of Medford
249 PM CST Fri Jan 12 2024

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM CST SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

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

* WHERE...Taylor County.

* WHEN...Until 6 PM CST Saturday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing snow
  could significantly reduce visibility. The hazardous conditions
  could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Visit 511wi.gov for road conditions.

&&

$$

IAZ009-130500-
/O.UPG.KARX.WS.W.0002.000000T0000Z-240113T1500Z/
/O.NEW.KARX.WW.Y.0002.240113T0600Z-240114T0000Z/
/O.EXB.KARX.BZ.W.0001.240112T2049Z-240113T0600Z/
Howard-
Including the city of Cresco
249 PM CST Fri Jan 12 2024

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST 
TONIGHT... 
...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT 
TONIGHT TO 6 PM CST SATURDAY...

* WHAT...Blizzard conditions expected with drastically reduced
  visibilities near zero in whiteout conditions. Total snow
  accumulations of 1 to 4 inches. Winds gusting as high as 45 
  mph.

* WHERE...Howard Counties.

* WHEN...Blizzard Warning, until midnight CST tonight. For the 
  Winter Weather Advisory, from midnight tonight to 6 PM CST 
  Saturday.

* IMPACTS...Travel is not advised from mid-afternoon through
  evening. Blowing snow will significantly reduce visibility. The
  cold wind chills as low as 20 below zero could cause frostbite
  on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Slow down and use caution while traveling. 

Visit 511ia.org for road conditions.

&&

$$

IAZ010-011-MNZ088-094>096-WIZ029-032>034-041>044-053>055-130500-
/O.NEW.KARX.WW.Y.0002.240113T0600Z-240114T0000Z/
/O.EXT.KARX.WS.W.0002.000000T0000Z-240113T0600Z/
Winneshiek-Allamakee-Winona-Mower-Fillmore-Houston-Clark-Buffalo-
Trempealeau-Jackson-La Crosse-Monroe-Juneau-Adams-Vernon-Crawford-
Richland-
Including the cities of Decorah, Waukon, Winona, Austin, Preston,
Caledonia, Neillsville, Alma, Arcadia, Whitehall, 
Black River Falls, La Crosse, Sparta, Tomah, Mauston, Friendship,
Viroqua, Prairie Du Chien, and Richland Center
249 PM CST Fri Jan 12 2024

...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM CST SATURDAY...

* WHAT...For the Winter Storm Warning, heavy snow. Winds gusting
  as high as 40 mph. For the Winter Weather Advisory, lighter snow
  expected. Total snow accumulations of 8 to 13 inches, lesser
  amounts north and west of La Crosse Wisconsin. Winds gusting as
  high as 35 mph.

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

* WHEN...For the Winter Storm Warning, until midnight CST 
  tonight. For the Winter Weather Advisory, from midnight 
  tonight to 6 PM CST Saturday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the evening commute. The cold wind 
  chills as low as 20 below zero 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. 

Slow down and use caution while traveling. 

In Iowa, visit 511ia.org for road conditions. In Minnesota,
visit 511mn.org for road conditions. In Wisconsin, visit
511wi.gov for road conditions.

&&

$$
Baumgardt/Boyne
832 
WWUS43 KARX 122110
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
310 PM CST Fri Jan 12 2024

...Dangerous Winter Storm Peaking Now and into the Evening...

.A complex winter storm continues to bring heavy snow to central
and southwest Wisconsin into far northeast Iowa. Winds were also
on the increase with blowing and drifting now becoming more of a
problem across parts of Iowa...mainly southwest of Highway 52.
Further northwest snow was not as heavy and snow amount forecasts
have been lowered northwest of a line from Austin to Winona
Minnesota to Medford Wisconsin. The Winter Storm Warning was
replaced by an Advisory for much of that area.

The winter storm will continue to bring snow, heaviest east and
south of the La Crosse - Winona area through the evening before
becoming lighter. Whiteout conditions will become more widespread
near and southwest of Highway 52 in northeast Iowa and extreme
southwest Wisconsin. Travel will become more dangerous after
sunset with darkness and whiteout in blowing snow there as winds
gust to 45 mph. Consider altering, delaying or even canceling
travel plans through the evening.

Bitterly cold air arrives as this storm system exits the area
with wind chills of 20 to 30 below by Saturday night.

IAZ030-WIZ061-130515-
/O.CON.KARX.WS.W.0002.000000T0000Z-240112T2300Z/
/O.CON.KARX.BZ.W.0001.240112T2300Z-240113T0600Z/
/O.CON.KARX.WW.Y.0002.240113T0600Z-240114T0000Z/
Clayton-Grant-
Including the cities of Elkader and Platteville
310 PM CST Fri Jan 12 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM CST THIS
AFTERNOON...
...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO 6 PM CST SATURDAY...

* WHAT...Blizzard conditions expected with whiteout in open 
  areas. Total snow accumulations of 8 to 12 inches. Winds 
  gusting as high as 45 mph. For the Winter Weather Advisory, 
  snow expected. Total snow accumulations of up to two inches. 
  Winds gusting as high as 40 mph.

* WHERE...In Iowa, Clayton County. In Wisconsin, Grant County.

* WHEN...For the Winter Storm Warning, until 5 PM CST this 
  afternoon. For the Blizzard Warning, from 5 PM this afternoon 
  to midnight CST tonight. For the Winter Weather Advisory, from 
  midnight tonight to 6 PM CST Saturday.

* IMPACTS...Travel could be very difficult with heavy snow and 
  blowing snow into the evening. Blowing snow will significantly 
  reduce visibility. The hazardous conditions could impact the 
  evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Slow down and use caution while traveling.

In Iowa, visit 511ia.org for road conditions. In Wisconsin, visit
511wi.gov for road conditions.

&&

$$

IAZ008-009-018-019-029-130515-
/O.CON.KARX.BZ.W.0001.000000T0000Z-240113T0600Z/
/O.CON.KARX.WW.Y.0002.240113T0600Z-240114T0000Z/
Mitchell-Howard-Floyd-Chickasaw-Fayette-
Including the cities of Osage, Cresco, Charles City, New Hampton,
and Oelwein
310 PM CST Fri Jan 12 2024

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO 6 PM CST SATURDAY...

* WHAT...Blizzard conditions expected with drastically reduced 
  visibilities near zero in whiteout conditions. Additional snow 
  accumulations of 1 to 3 inches. Winds gusting as high as 45 
  mph.

* WHERE...Howard, Mitchell, Floyd, Chickasaw and Fayette 
  Counties.

* WHEN...Blizzard Warning, until midnight CST tonight. For the 
  Winter Weather Advisory, from midnight tonight to 6 PM CST 
  Saturday.

* IMPACTS...Travel is not advised through evening. Blowing snow 
  will significantly reduce visibility. The cold wind chills as 
  low as 20 below zero could cause frostbite on exposed skin in 
  as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Slow down and use caution while traveling.

Visit 511ia.org for road conditions.

&&

$$

IAZ010-011-MNZ088-094>096-WIZ029-032>034-041>044-053>055-130515-
/O.CON.KARX.WS.W.0002.000000T0000Z-240113T0600Z/
/O.CON.KARX.WW.Y.0002.240113T0600Z-240114T0000Z/
Winneshiek-Allamakee-Winona-Mower-Fillmore-Houston-Clark-Buffalo-
Trempealeau-Jackson-La Crosse-Monroe-Juneau-Adams-Vernon-Crawford-
Richland-
Including the cities of Decorah, Waukon, Winona, Austin, Preston,
Caledonia, Neillsville, Alma, Arcadia, Whitehall, 
Black River Falls, La Crosse, Sparta, Tomah, Mauston, Friendship,
Viroqua, Prairie Du Chien, and Richland Center
310 PM CST Fri Jan 12 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO 6 PM CST SATURDAY...

* WHAT...For the Winter Storm Warning, heavy snow. Winds gusting 
  as high as 40 mph. For the Winter Weather Advisory, lighter 
  snow expected. Total snow accumulations of 8 to 13 inches, 
  lesser amounts north and west of La Crosse Wisconsin. Winds 
  gusting as high as 35 mph.

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

* WHEN...For the Winter Storm Warning, until midnight CST 
  tonight. For the Winter Weather Advisory, from midnight 
  tonight to 6 PM CST Saturday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the evening commute. The cold wind 
  chills as low as 20 below zero 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.

Slow down and use caution while traveling.

In Iowa, visit 511ia.org for road conditions. In Minnesota, visit
511mn.org for road conditions. In Wisconsin, visit 511wi.gov for
road conditions.

&&

$$

MNZ079-086-087-WIZ017-130515-
/O.CON.KARX.WW.Y.0002.000000T0000Z-240114T0000Z/
Wabasha-Dodge-Olmsted-Taylor-
Including the cities of Wabasha, Dodge Center, Rochester, 
and Medford
310 PM CST Fri Jan 12 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST
SATURDAY...

* WHAT...Snow. Total snow accumulations of 3 to 7 inches. Winds 
  gusting as high as 40 mph.

* WHERE...Wabasha, Dodge and Olmsted Counties.

* WHEN...Until 6 PM CST Saturday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the evening commute. The cold wind 
  chills as low as 20 below zero could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

Visit 511mn.org for road conditions.

&&

$$
793 
WWUS43 KARX 130047
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
647 PM CST Fri Jan 12 2024

...Dangerous Winter Storm Continues, Winds Increasing...

.A complex winter storm continues to drop heavy snow over
eastern Wisconsin, stretching westward into west-central
Wisconsin. Bands of moderate to light snow were found across
southeast Minnesota and northeast Iowa. Winds are on the increase
with gusts upwards of 45 mph across parts of northeast 
Iowa...resulting in blizzard conditions.

Blowing and drifting will become more widespread this evening as
winds continue to ramp up. Highest impacts will be across parts of 
northeast Iowa into southwest Wisconsin with blizzard conditions, 
and also along and southwest of Highway 52 in southeast Minnesota
where blowing and drifting will drop visibilities to 1/2 mile at
times. 

Snow will continue to fall through the evening hours, but will
decrease in intensity and become more focused along and north of 
Interstate 90 moving into the overnight. 

Travel is hazardous to dangerous for many tonight, especially
where higher snow totals and strongest winds are occurring. 
Consider altering, delaying or even canceling travel plans through
the evening.

Bitterly cold air arrives as this storm system exits the area
with wind chills of 20 to 30 below by Saturday night.

IAZ008-009-018-019-029-130900-
/O.CON.KARX.BZ.W.0001.000000T0000Z-240113T0600Z/
/O.CON.KARX.WW.Y.0002.240113T0600Z-240114T0000Z/
Mitchell-Howard-Floyd-Chickasaw-Fayette-
Including the cities of Osage, Cresco, Charles City, New Hampton,
and Oelwein
647 PM CST Fri Jan 12 2024

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO 6 PM CST SATURDAY...

* WHAT...Blizzard conditions expected with drastically reduced
  visibilities near zero in whiteout conditions. Additional snow
  accumulations of 1 to 2 inches. Winds gusting as high as 45 mph.

* WHERE...Mitchell, Howard, Floyd, Chickasaw and Fayette 
  Counties.

* WHEN...For the Blizzard Warning, until midnight CST tonight. 
  For the Winter Weather Advisory, from midnight tonight to 6 PM 
  CST Saturday.

* IMPACTS...Travel is not advised through evening. Blowing snow
  will significantly reduce visibility. The cold wind chills as
  low as 20 below zero could cause frostbite on exposed skin in as
  little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Slow down and use caution while traveling. 

Visit 511ia.org for road conditions.

&&

$$

IAZ030-WIZ061-130900-
/O.CON.KARX.BZ.W.0001.000000T0000Z-240113T0600Z/
/O.CON.KARX.WW.Y.0002.240113T0600Z-240114T0000Z/
Clayton-Grant-
Including the cities of Elkader and Platteville
647 PM CST Fri Jan 12 2024

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO 6 PM CST SATURDAY...

* WHAT...Blizzard conditions expected with whiteout in open areas.
  Total snow accumulations of 8 to 12 inches. Winds gusting as
  high as 45 mph. For the Winter Weather Advisory, snow expected.
  Total snow accumulations of up to 2 inches. Winds gusting as 
  high as 40 mph.

* WHERE...In Iowa, Clayton County. In Wisconsin, Grant County.

* WHEN...For the Blizzard Warning, until midnight CST tonight. 
  For the Winter Weather Advisory, from midnight tonight to 6 PM 
  CST Saturday.

* IMPACTS...Travel could be very difficult with heavy snow and
  blowing snow into the evening. Blowing snow will significantly
  reduce visibility. The cold wind chills as low as 20 below zero
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Slow down and use caution while traveling. 

In Iowa, visit 511ia.org for road conditions. In Wisconsin,
visit 511wi.gov for road conditions.

&&

$$

IAZ010-011-MNZ088-094>096-WIZ029-032>034-041>044-053>055-130900-
/O.CON.KARX.WS.W.0002.000000T0000Z-240113T0600Z/
/O.CON.KARX.WW.Y.0002.240113T0600Z-240114T0000Z/
Winneshiek-Allamakee-Winona-Mower-Fillmore-Houston-Clark-Buffalo-
Trempealeau-Jackson-La Crosse-Monroe-Juneau-Adams-Vernon-Crawford-
Richland-
Including the cities of Decorah, Waukon, Winona, Austin, Preston,
Caledonia, Neillsville, Alma, Arcadia, Whitehall, 
Black River Falls, La Crosse, Sparta, Tomah, Mauston, Friendship,
Viroqua, Prairie Du Chien, and Richland Center
647 PM CST Fri Jan 12 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO 6 PM CST SATURDAY...

* WHAT...For the Winter Storm Warning, heavy snow. Winds gusting 
  as high as 40 mph. For the Winter Weather Advisory, lighter snow
  expected. Total snow accumulations of 8 to 13 inches, lesser 
  amounts north and west of La Crosse Wisconsin. Winds gusting as 
  high as 35 mph.

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

* WHEN...For the Winter Storm Warning, until midnight CST 
  tonight. For the Winter Weather Advisory, from midnight 
  tonight to 6 PM CST Saturday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow
  could significantly reduce visibility. The cold wind chills as 
  low as 20 below zero 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. 

Slow down and use caution while traveling. 

In Iowa, visit 511ia.org for road conditions. In Minnesota,
visit 511mn.org for road conditions. In Wisconsin, visit
511wi.gov for road conditions.

&&

$$

MNZ079-086-087-WIZ017-130900-
/O.CON.KARX.WW.Y.0002.000000T0000Z-240114T0000Z/
Wabasha-Dodge-Olmsted-Taylor-
Including the cities of Wabasha, Dodge Center, Rochester, 
and Medford
647 PM CST Fri Jan 12 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST
SATURDAY...

* WHAT...Snow. Total snow accumulations of 3 to 7 inches. Winds
  gusting as high as 40 mph.

* WHERE...In Minnesota, Wabasha, Dodge and Olmsted Counties. In 
  Wisconsin, Taylor County.

* WHEN...Until 6 PM CST Saturday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing snow
  could significantly reduce visibility. The cold wind chills as 
  low as 20 below zero could cause frostbite on exposed skin in as
  little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

In Minnesota, visit 511mn.org for road conditions. In Wisconsin,
visit 511wi.gov for road conditions.

&&

$$

Rieck
959 
WWUS43 KARX 130424
WSWARX

URGENT - WINTER WEATHER MESSAGE
National Weather Service La Crosse WI
1024 PM CST Fri Jan 12 2024

...Hazardous Conditions Continue, Winter Storm Exiting East...

.As a winter storm continues to progress northeast overnight, 
widespread snow will continue across the region. While the 
chances for heavy snow are diminishing, snow may lead to 
additional accumulations of 1 to 3 inches overnight with the 
focus of snow being along and north of I-90. Snow showers during 
the day tomorrow could lead to further accumulations of up to an 
inch. 

With winds decreasing in strength overnight expecting blizzard
conditions to no longer be a threat. However, blowing and drifting
snow will continue to be a concern into tomorrow. 

Travel remains hazardous at this time, especially where snow
totals are the highest and winds remain strong. Consider making
alterations or canceling any travel plans overnight. 

Behind this system, bitterly cold air moves ino the region with
wind chills of 20 to 35 degrees below zero beginning Saturday
night. 


IAZ008-009-018-019-029-131230-
/O.CON.KARX.BZ.W.0001.000000T0000Z-240113T0600Z/
/O.CON.KARX.WW.Y.0002.240113T0600Z-240114T0000Z/
Mitchell-Howard-Floyd-Chickasaw-Fayette-
Including the cities of Osage, Cresco, Charles City, New Hampton,
and Oelwein
1024 PM CST Fri Jan 12 2024

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST
SATURDAY...

* WHAT...For the Blizzard Warning, blizzard conditions. 
  Additional snow accumulations of up to one inch. Winds gusting 
  as high as 40 mph. For the Winter Weather Advisory, snow 
  expected. Total snow accumulations of up to one inch. Winds 
  gusting as high as 40 mph.

* WHERE...Mitchell, Howard, Floyd, Chickasaw and Fayette 
  Counties.

* WHEN...For the Blizzard Warning, until midnight CST tonight. 
  For the Winter Weather Advisory, until 6 PM CST Saturday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. The cold wind 
  chills as low as 25 below zero could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Slow down and use caution while traveling. 

Visit 511ia.org for road conditions.

&&

$$

IAZ030-WIZ061-131230-
/O.CON.KARX.BZ.W.0001.000000T0000Z-240113T0600Z/
/O.CON.KARX.WW.Y.0002.240113T0600Z-240114T0000Z/
Clayton-Grant-
Including the cities of Elkader and Platteville
1024 PM CST Fri Jan 12 2024

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST
SATURDAY...

* WHAT...For the Blizzard Warning, blizzard conditions. 
  Additional snow accumulations of up to one inch. Winds gusting 
  as high as 40 mph. For the Winter Weather Advisory, snow 
  expected. Total snow accumulations of up to two inches. Winds 
  gusting as high as 40 mph.

* WHERE...In Iowa, Clayton County. In Wisconsin, Grant County.

* WHEN...For the Blizzard Warning, until midnight CST tonight. 
  For the Winter Weather Advisory, until 6 PM CST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Slow down and use caution while traveling. 

In Iowa, visit 511ia.org for road conditions. In Wisconsin,
visit 511wi.gov for road conditions.

&&

$$

IAZ010-011-MNZ088-094>096-WIZ029-032>034-041>044-053>055-131230-
/O.CON.KARX.WS.W.0002.000000T0000Z-240113T0600Z/
/O.CON.KARX.WW.Y.0002.240113T0600Z-240114T0000Z/
Winneshiek-Allamakee-Winona-Mower-Fillmore-Houston-Clark-Buffalo-
Trempealeau-Jackson-La Crosse-Monroe-Juneau-Adams-Vernon-Crawford-
Richland-
Including the cities of Decorah, Waukon, Winona, Austin, Preston,
Caledonia, Neillsville, Alma, Arcadia, Whitehall, 
Black River Falls, La Crosse, Sparta, Tomah, Mauston, Friendship,
Viroqua, Prairie Du Chien, and Richland Center
1024 PM CST Fri Jan 12 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST
SATURDAY...

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

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

* WHEN...For the Winter Storm Warning, until midnight CST 
  tonight. For the Winter Weather Advisory, until 6 PM CST 
  Saturday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The cold wind 
  chills as low as 20 below zero 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. 

Slow down and use caution while traveling. 

In Iowa, visit 511ia.org for road conditions. In Minnesota,
visit 511mn.org for road conditions. In Wisconsin, visit
511wi.gov for road conditions.

&&

$$

MNZ079-086-087-WIZ017-131230-
/O.CON.KARX.WW.Y.0002.000000T0000Z-240114T0000Z/
Wabasha-Dodge-Olmsted-Taylor-
Including the cities of Wabasha, Dodge Center, Rochester, 
and Medford
1024 PM CST Fri Jan 12 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches. 
  Winds gusting as high as 40 mph.

* WHERE...In Minnesota, Wabasha, Dodge and Olmsted Counties. In 
  Wisconsin, Taylor County.

* WHEN...Until 6 PM CST Saturday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The cold wind 
  chills as low as 20 below zero could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

In Minnesota, visit 511mn.org for road conditions. In Wisconsin,
visit 511wi.gov for road conditions.

&&

$$

Naylor

What forecasters said that day

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

NWS La Crosse, WI wrote its last area forecast discussion before this blizzard warning went out at Jan 12, 5:02 AM CST, 5 hours 54 minutes earlier. Its key messages:

  • A significant winter storm remains on track for today into Saturday with heavy snow and gusty winds leading to blowing/drifting. Widespread travel impacts are likely!
  • A blast of bitter cold air will impact the region this weekend into next week with hazardous to dangerous wind chills expected at times.
Area forecast discussion, Jan 12, 5:02 AM CST, 5 hours 54 minutes before
Area Forecast Discussion
National Weather Service La Crosse WI
502 AM CST Fri Jan 12 2024

.KEY MESSAGES...

- A significant winter storm remains on track for today into
  Saturday with heavy snow and gusty winds leading to
  blowing/drifting. Widespread travel impacts are likely!

- A blast of bitter cold air will impact the region this weekend
  into next week with hazardous to dangerous wind chills
  expected at times.

&&

.DISCUSSION...
Issued at 317 AM CST Fri Jan 12 2024

Today-Saturday: Winter Storm

A significant winter storm remains on track to impact the region
tonight into the start of the weekend. Early morning GOES
imagery/observations showed the mid-level trough across the southern
plains with snow spreading north across Iowa into southern
Minnesota. Confidence remains high for a major winter storm
with recent EPS runs expanding the the area of higher
probabilities for 6"+ area-wide. The highest totals are favored
across far northeast Iowa through southwest/central Wisconsin
where WPC superensemble probabilities for a foot or more of
snow reach 40 to 70%. Incoming 00Z HREF data is in good
agreement showing PMM amounts of 6-12+" for much of the area
through tonight.

Meteorologically, the first push of snow will spread north this
morning with a slug of mid-level warm advection/frontogenesis.
The higher rates with this snow favors northeast IA through
southwest and central WI.  As the surface low deepens
northeastward towards the Great Lakes, strong synoptic lift will
maintain a broad deformation band of snow across the area today
and tonight. Residence time of the band over any area through
tonight will impact amounts. Snow rates of 0.5 to 1"+ per hour
are expected today, gradually lightening tonight into Saturday.
As the whole column cools heading into Saturday, a deeper
dendritic growth zone with some remaining lift will likely keep
snow showers going with some lighter accumulations before
drying occurs Saturday night.

This will be a longer duration event, helping to boost snow totals.
Snow ratios will likely be somewhat higher west of the MS River
to start the event with cooler thermal profiles in place
relative to farther east, compensating to some extent for the
lower precipitation amounts expected to the west. Overall, as
more cool air works in behind the system, snow ratios will tend
to increase tonight/Saturday, leading to a drier snow more
susceptible to blowing/drifting.

Still expect the winds to ramp up through the afternoon into
tonight. HREF/RAP guidance shows enhanced low-level flow ahead of
the surface low into central/eastern Wisconsin and another corridor
of winds across central Iowa. RAP soundings at Mason City show 40-45
kts topped by a sharp inversion and only modest cold advection this
evening, so there is some question on gust potential. However, will
have to monitor parts of northeast Iowa for potential blizzard
conditions late today/tonight, especially . Unsheltered areas of
central Wisconsin may be more prone to blowing/drifting as
well. Localized whiteouts are possible.

Saturday night-Thursday: Bitterly Cold

Bitterly cold air will push south and east across the area through
the weekend into early next week as we head into climatologically
what tends to be the coldest phase of winter. While the more
anomalous cold still looks to stay a bit west, it will certainly
be very cold, especially with a fresh snowpack, with NAEFS 850
mb standard anomalies approaching -2. In addition, with the
surface high staying to the west early in the week, some
gradient hangs on across the Upper Midwest, which will keep the
winds up a bit. This will likely lead to wind chill concerns by
as early as Saturday night west of the Mississippi River, and
area-wide late in the weekend into early next week. Wind chill
headlines are likely during this time. Although some slow
moderation is expected later next week, spread is high, and
below average temps are still favored. Beyond the current winter
storm, no strong precip signal is indicated heading into next
week.

&&

.AVIATION /12Z TAFS THROUGH 12Z SATURDAY/...
Issued at 502 AM CST Fri Jan 12 2024

Poor flying conditions will persist through this TAF period with
widespread snow restricting ceilings in the IFR/MVFR range and
visibility generally LIFR to IFR, occasionally MVFR. Winds will
increase this afternoon and tonight, with gusts up to 30 kts,
leading some blowing/drifting of snow, especially at KRST.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...Winter Storm Warning until noon CST Saturday for WIZ017-029-
     032>034-041>044-053>055-061.
MN...Winter Storm Warning until 9 AM CST Saturday for MNZ079-
     086>088-094-095.
     Winter Storm Warning until noon CST Saturday for MNZ096.
IA...Winter Storm Warning until 9 AM CST Saturday for IAZ008>010-
     018-019-029.
     Winter Storm Warning until noon CST Saturday for IAZ011-030.

&&

DISCUSSION...JM
AVIATION...JM
Hazardous weather outlook, Jan 12, 3:19 AM CST, 7 hours 37 minutes before
Hazardous Weather Outlook
National Weather Service La Crosse WI
319 AM CST Fri Jan 12 2024

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-131330-
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-
319 AM CST Fri Jan 12 2024

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

.DAY ONE...Today and Tonight

A significant winter storm will bring widespread snow
accumulations of 4 to 12 inches through tonight along with gusty
winds by this afternoon and tonight, leading to blowing and
drifting snow in open areas. Widespread travel impacts are
expected with localized whiteouts possible. A winter storm warning
is in effect.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Additional snow accumulations of 1 to 3 inches are expected
through Saturday night with patchy blowing and drifting snow in
open areas. A winter storm warning is in effect Saturday morning.

Bitterly cold wind chills of 15 below to 35 below zero are
expected at times Saturday night through Wednesday morning.

.SPOTTER INFORMATION STATEMENT...

Snowfall reports are appreciated along with any observations of
local whiteout conditions.

.EMERGENCY MANAGEMENT COORDINATION...

A Google LIVE meet is scheduled for 11 AM today.

In the hours before

Local storm report, Jan 12, 8:28 AM CST, 2 hours 28 minutes before
Preliminary Local Storm Report
National Weather Service La Crosse WI
828 AM CST Fri Jan 12 2024

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

0800 AM     Snow             Dickeyville             42.62N 90.59W
01/12/2024  M3.3 inch        Grant              WI   Cocorahs

            Cocorahs station WI-GT-15 Dickeyville 0.1
            SW.

0800 AM     Snow             1 ESE Mauston           43.79N 90.06W
01/12/2024  M2.0 inch        Juneau             WI   CO-OP Observer

            CO-OP Observer station MAUW3 1.0 E Mauston.

0740 AM     Snow             Osage                   43.28N 92.81W
01/12/2024  M1.5 inch        Mitchell           IA   CO-OP Observer

            CO-OP Observer station OSAI4 Osage.

0700 AM     Snow             1 SSW Osborne           42.78N 91.45W
01/12/2024  M1.2 inch        Clayton            IA   CO-OP Observer

            CO-OP Observer station EKRI4 Elkader 6SSW.

0700 AM     Snow             2 NE Mound Prairie      43.80N 91.43W
01/12/2024  M1.0 inch        Houston            MN   CO-OP Observer

            CO-OP Observer station HOKM5 Hokah 4 NW.

0700 AM     Snow             2 WSW Hillsboro         43.63N 90.38W
01/12/2024  M1.0 inch        Vernon             WI   CO-OP Observer

            CO-OP Observer station HLBW3 Hillsboro 2 SW.

0800 AM     Snow             2 ENE Mound Prairie     43.79N 91.42W
01/12/2024  M1.0 inch        Houston            MN   Cocorahs

            Cocorahs station MN-HS-15 1 ENE Mound
            Prairie.

&&
Local storm report, Jan 12, 8:35 AM CST, 2 hours 21 minutes before
Preliminary Local Storm Report
National Weather Service La Crosse WI
835 AM CST Fri Jan 12 2024

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

0800 AM     Snow             Fredericksburg          42.96N 92.20W
01/12/2024  M4.1 inch        Chickasaw          IA   Cocorahs

            Cocorahs station IA-CW-5 Fredericksburg 0.3
            S.

0800 AM     Snow             1 SW Sparta             43.94N 90.82W
01/12/2024  M1.0 inch        Monroe             WI   CO-OP Observer

            CO-OP Observer station SRTW3 0.5 SW Sparta.

&&
Local storm report, Jan 12, 8:58 AM CST, 1 hour 58 minutes before
Preliminary Local Storm Report
National Weather Service La Crosse WI
858 AM CST Fri Jan 12 2024

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

0830 AM     Snow             1 SSW Black River Falls 44.29N 90.85W
01/12/2024  M1.7 inch        Jackson            WI   CO-OP Observer

            CO-OP Observer station BLKW3 Black River
            Falls.

0700 AM     Snow             1 SSE Charles City      43.06N 92.67W
01/12/2024  M1.5 inch        Floyd              IA   CO-OP Observer

            CO-OP Observer station CIYI4 Charles City.

0700 AM     Snow             1 NNE Prairie Du Chien  43.05N 91.13W
01/12/2024  M1.4 inch        Crawford           WI   CO-OP Observer

            CO-OP Observer station PDCW3 0.6 NE Prairie
            Du Chien.

0700 AM     Snow             Strawberry Point        42.69N 91.53W
01/12/2024  M1.2 inch        Clayton            IA   CO-OP Observer

            CO-OP Observer station SPTI4 Strawberry
            Point.

0700 AM     Snow             1 SSW Osborne           42.78N 91.45W
01/12/2024  M1.2 inch        Clayton            IA   CO-OP Observer

            CO-OP Observer station EKRI4 Elkader 6SSW.

&&
Local storm report, Jan 12, 9:38 AM CST, 1 hour 18 minutes before
Preliminary Local Storm Report
National Weather Service La Crosse WI
938 AM CST Fri Jan 12 2024

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

0915 AM     Snow             4 SSW Rockbridge        43.40N 90.39W
01/12/2024  M5.5 inch        Richland           WI   CO-OP Observer

            CO-OP Observer station RCRW3 Richland Center
            4 N.

&&
Local storm report, Jan 12, 9:39 AM CST, 1 hour 17 minutes before
Preliminary Local Storm Report
National Weather Service La Crosse WI
939 AM CST Fri Jan 12 2024

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

0800 AM     Snow             Preston                 43.67N 92.07W
01/12/2024  M2.0 inch        Fillmore           MN   CO-OP Observer

            CO-OP Observer station PTNM5 Preston.

0824 AM     Snow             3 SSE Steuben           43.13N 90.84W
01/12/2024  M1.0 inch        Crawford           WI   CO-OP Observer

            CO-OP Observer station SBNW3 Steuben 4SE.

&&
Local storm report, Jan 12, 10:45 AM CST, 11 minutes before
Preliminary Local Storm Report
National Weather Service La Crosse WI
1045 AM CST Fri Jan 12 2024

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

1040 AM     Snow             1 N Tomah               44.00N 90.51W
01/12/2024  M2.3 inch        Monroe             WI   Amateur Radio

&&

db

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 12, 10:56 AM CSTWinter Storm WarningARXChickasaw, Clayton, Fayette, Floyd, Mitchell4 hr
Jan 12, 2:49 PM CSTWinter Weather AdvisoryARXAllamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more36 hr

Nearby

Blizzard Warnings in Iowa, 2024Blizzard Warnings in Wisconsin, 2024Every blizzard warning in 2024

Sources

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