Alert archive / Iowa / Wind Chill Warnings in 2022

Wind Chill Warning 2, NWS Des Moines, IA

January 24, 202212 counties in Iowa

NWS Des Moines, IA issued this wind chill warning at Jan 24, 2022, 2:59 PM CST for 12 counties in Iowa. It took effect at Jan 25, 2022, 12:00 AM CST. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 24, 2022, 2:59 PM CST (20:59 UTC)
In effect from
Jan 25, 2022, 12:00 AM CST
Expired
Jan 25, 2022, 9:00 AM CST
In force
9 hr
Issued by
NWS Des Moines, IA

Counties Bremer County, IA, Butler County, IA, Cerro Gordo County, IA, Emmet County, IA, Franklin County, IA, Hancock County, IA, Humboldt County, IA, Kossuth County, IA, Palo Alto County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA

The radar

The Des Moines radar (KDMX), 144 km from the middle of the area, began a volume at 21:00 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, 9.0 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, Minneapolis, MN at 12:00Z on 2022-01-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 2022-01-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -79 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
499 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
-79 m²/s²
0-3 km storm-relative helicity
-52 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

278 
WWUS43 KDMX 242059
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
259 PM CST Mon Jan 24 2022

...Dangerous Cold Returns Tonight through Wednesday...

.Temperatures will fall below zero across central Iowa tonight 
into Tuesday morning and a breeze from the northwest will create
wind chills lower than 20 below zero over northern Iowa, much of 
central Iowa, and a portion of southern Iowa. Northern Iowa will 
experience the coldest temperatures and lowest wind chills with 
wind chills of 30 to 35 below zero Tuesday morning. Bitter cold 
wind chills will persist over northern Iowa Tuesday afternoon 
through midday Wednesday while parts of southern into central Iowa
will have a brief moderation in temperatures Tuesday afternoon.

IAZ004>007-015>017-024>028-250500-
/O.NEW.KDMX.WC.W.0002.220125T0600Z-220125T1500Z/
/O.NEW.KDMX.WC.Y.0010.220125T1500Z-220126T1700Z/
/O.EXT.KDMX.WC.Y.0009.220125T0000Z-220125T0600Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Humboldt-Wright-Franklin-Butler-Bremer-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha,
Mason City, Clear Lake, Humboldt, Eagle Grove, Clarion, Belmond, 
Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington,
Allison, Dumont, and Waverly
259 PM CST Mon Jan 24 2022

...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 
MIDNIGHT CST TONIGHT...THEN WIND CHILL WARNING IN EFFECT UNTIL 9 
AM CST TUESDAY... 
...WIND CHILL ADVISORY IN EFFECT FROM 9 AM TUESDAY TO 11 AM CST 
WEDNESDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills
  expected. Wind chills as low as 35 below zero. For the first
  Wind Chill Advisory, very cold wind chills expected and as low 
  as around 30 below zero.

* WHERE...Northern Iowa.

* WHEN...For the Wind Chill Warning, from midnight tonight to 9 AM
  CST Tuesday. For the first Wind Chill Advisory, from 6 PM this
  evening to midnight CST tonight. For the second wind chill 
  Advisory, from 9 AM Tuesday to 11 AM CST Wednesday. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

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

&&

$$

IAZ036>039-250500-
/O.CON.KDMX.WC.Y.0009.220125T0000Z-220126T1700Z/
Hamilton-Hardin-Grundy-Black Hawk-
Including the cities of Webster City, Iowa Falls, Eldora, Ackley,
Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, 
and Cedar Falls
259 PM CST Mon Jan 24 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 11 AM CST WEDNESDAY...

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

* WHERE...Northern Iowa.

* WHEN...From 6 PM this evening to 11 AM CST Wednesday.

* 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. 

&&

$$

IAZ023-033>035-250500-
/O.CON.KDMX.WC.Y.0009.220125T0300Z-220125T1800Z/
Pocahontas-Sac-Calhoun-Webster-
Including the cities of Pocahontas, Laurens, Rolfe, Fonda, 
Gilmore City, Sac City, Lake View, Odebolt, Wall Lake, Schaller, 
Early, Rockwell City, Manson, Lake City, Pomeroy, and Fort Dodge
259 PM CST Mon Jan 24 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO NOON CST TUESDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 20
  to 30 below zero.

* WHERE...Northern Iowa.

* WHEN...From 9 PM this evening to noon CST Tuesday.

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

* ADDITIONAL DETAILS...An additional advisory will likely be 
  needed for Tuesday night into Wednesday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ045>050-058>062-071>075-250500-
/O.CON.KDMX.WC.Y.0009.220125T0600Z-220125T1800Z/
Carroll-Greene-Boone-Story-Marshall-Tama-Guthrie-Dallas-Polk-
Jasper-Poweshiek-Adair-Madison-Warren-Marion-Mahaska-
Including the cities of Carroll, Jefferson, Boone, Ames, 
Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, 
Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, 
Des Moines, Newton, Grinnell, Greenfield, Stuart, Adair, 
Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, 
Pella, Knoxville, and Oskaloosa
259 PM CST Mon Jan 24 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
NOON CST TUESDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 20
  to 30 below zero.

* WHERE...Central Iowa and parts of southern Iowa.

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

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

* ADDITIONAL DETAILS...An additional advisory will likely be
  needed for parts of the central Iowa area Tuesday night into 
  Wednesday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

For more information from the National Weather Service visit
https://weather.gov/desmoines
3 follow-up statements
283 
WWUS43 KDMX 250306
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
906 PM CST Mon Jan 24 2022

...Dangerous Cold Tonight through Wednesday...

.Temperatures will continue to fall below zero across central 
Iowa tonight into Tuesday morning. The cold temperatures combined
with breezy northwest winds will create wind chills lower than 20
below zero over northern Iowa, much of central Iowa, and a 
portion of southern Iowa. Northern Iowa will experience the 
coldest temperatures and lowest wind chills with wind chills of 30
to 35 below zero Tuesday morning. Bitter cold wind chills will 
persist over northern Iowa Tuesday afternoon through midday 
Wednesday while parts of southern into central Iowa will have a 
brief moderation in temperatures Tuesday afternoon.

IAZ004>007-015>017-024>028-251115-
/O.CON.KDMX.WC.W.0002.220125T0600Z-220125T1500Z/
/O.CON.KDMX.WC.Y.0009.000000T0000Z-220125T0600Z/
/O.CON.KDMX.WC.Y.0010.220125T1500Z-220126T1700Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Humboldt-Wright-Franklin-Butler-Bremer-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha,
Mason City, Clear Lake, Humboldt, Eagle Grove, Clarion, Belmond, 
Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington,
Allison, Dumont, and Waverly
906 PM CST Mon Jan 24 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM CST TUESDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 9 AM TUESDAY TO
11 AM CST WEDNESDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind 
  chills expected. Wind chills as low as 35 below zero. For the 
  first Wind Chill Advisory, very cold wind chills. Wind chills 
  as low as 30 below zero. For the second Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 35 below 
  zero.

* WHERE...North central Iowa.

* WHEN...For the Wind Chill Warning, from midnight until 9 AM CST
  Tuesday. For the first Wind Chill Advisory, until midnight CST 
  tonight. For the second Wind Chill Advisory, from 9 AM Tuesday 
  to 11 AM CST Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

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

&&

$$

IAZ023-033>035-251115-
/O.CON.KDMX.WC.Y.0009.000000T0000Z-220125T1800Z/
Pocahontas-Sac-Calhoun-Webster-
Including the cities of Pocahontas, Laurens, Rolfe, Fonda, 
Gilmore City, Sac City, Lake View, Odebolt, Wall Lake, Schaller, 
Early, Rockwell City, Manson, Lake City, Pomeroy, and Fort Dodge
906 PM CST Mon Jan 24 2022

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

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

* WHERE...Parts of northern Iowa.

* WHEN...Until noon CST Tuesday.

* 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. 

&&

$$

IAZ036>039-251115-
/O.CON.KDMX.WC.Y.0009.000000T0000Z-220126T1700Z/
Hamilton-Hardin-Grundy-Black Hawk-
Including the cities of Webster City, Iowa Falls, Eldora, Ackley,
Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, 
and Cedar Falls
906 PM CST Mon Jan 24 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM CST
WEDNESDAY...

* WHAT...Very cold wind chills. Wind chills as low as 35 below 
  zero.

* WHERE...Parts of northern Iowa.

* WHEN...Until 11 AM CST Wednesday.

* 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. 

&&

$$

IAZ045>050-058>062-071>075-251115-
/O.CON.KDMX.WC.Y.0009.220125T0600Z-220125T1800Z/
Carroll-Greene-Boone-Story-Marshall-Tama-Guthrie-Dallas-Polk-
Jasper-Poweshiek-Adair-Madison-Warren-Marion-Mahaska-
Including the cities of Carroll, Jefferson, Boone, Ames, 
Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, 
Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, 
Des Moines, Newton, Grinnell, Greenfield, Stuart, Adair, 
Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, 
Pella, Knoxville, and Oskaloosa
906 PM CST Mon Jan 24 2022

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

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

* WHERE...Central Iowa

* WHEN...From midnight until noon CST Tuesday.

* 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. 

&&

$$

For more information from the National Weather Service visit
https://weather.gov/desmoines
256 
WWUS43 KDMX 251004
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
404 AM CST Tue Jan 25 2022

...Dangerous Cold This Morning through Wednesday...

.Temperatures have fallen below zero across much of central Iowa 
overnight and will continue to fall into this morning. The cold
temperatures combined with northwest winds will continue to lower
wind chills to 20 below zero or colder over northern, much of
central, and parts of southern Iowa into this morning. Northern 
Iowa will experience the coldest temperatures and lowest wind 
chills with wind chills of around 30 below zero this morning. 
Bitter cold wind chills will persist over northern Iowa into
midday Wednesday reaching wind chills of 30 to 35 below zero or
greater Wednesday morning. Central and southern Iowa will have a 
brief moderation in temperatures Tuesday afternoon but will return
to wind chills of 20 below zero or colder Tuesday night into 
midday Wednesday.

IAZ004>007-015>017-024>028-251815-
/O.NEW.KDMX.WC.W.0003.220126T0600Z-220126T1800Z/
/O.EXT.KDMX.WC.Y.0010.220125T1500Z-220126T0600Z/
/O.CON.KDMX.WC.W.0002.000000T0000Z-220125T1500Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Humboldt-Wright-Franklin-Butler-Bremer-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha,
Mason City, Clear Lake, Humboldt, Eagle Grove, Clarion, Belmond, 
Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington,
Allison, Dumont, and Waverly
404 AM CST Tue Jan 25 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS
MORNING...
...WIND CHILL ADVISORY NOW IN EFFECT FROM 9 AM THIS MORNING TO
MIDNIGHT CST TONIGHT...
...WIND CHILL WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON CST
WEDNESDAY...

* WHAT...For the Wind Chill Warnings, dangerously cold wind
  chills. Wind chills as low as 30 below zero this morning and as
  low as 35 to 40 below zero into Wednesday morning. For the Wind
  Chill Advisory, very cold wind chills expected. Wind chills as 
  low as 35 below zero.

* WHERE...North central Iowa.

* WHEN...For the first Wind Chill Warning, until 9 AM CST this 
  morning. For the second Wind Chill Warning, from midnight 
  tonight to noon CST Wednesday. For the Wind Chill Advisory, 
  from 9 AM this morning to midnight CST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. Use caution while traveling
outside. When outside, make sure you wear appropriate clothing, a
hat, and gloves. 

&&

$$

IAZ023-034-035-046>050-061-062-075-251815-
/O.NEW.KDMX.WC.Y.0011.220126T0300Z-220126T1800Z/
/O.CON.KDMX.WC.Y.0009.000000T0000Z-220125T1800Z/
Pocahontas-Calhoun-Webster-Greene-Boone-Story-Marshall-Tama-
Jasper-Poweshiek-Mahaska-
Including the cities of Pocahontas, Laurens, Rolfe, Fonda, 
Gilmore City, Rockwell City, Manson, Lake City, Pomeroy, 
Fort Dodge, Jefferson, Boone, Ames, Marshalltown, Tama, Toledo, 
Traer, Dysart, Gladbrook, Newton, Grinnell, and Oskaloosa
404 AM CST Tue Jan 25 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...
...WIND CHILL ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO NOON
CST WEDNESDAY...

* WHAT...For the first Wind Chill Advisory, very cold wind 
  chills. Wind chills as low as 25 below zero. For the second 
  Wind Chill Advisory, very cold wind chills expected. Wind 
  chills as low as 35 below zero.

* WHERE...Parts of northern into central Iowa.

* WHEN...For the first Wind Chill Advisory, until noon CST 
  today. For the second Wind Chill Advisory, from 9 PM this 
  evening to noon CST Wednesday.

* 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. 

&&

$$

IAZ036>039-251815-
/O.EXT.KDMX.WC.Y.0009.000000T0000Z-220126T1800Z/
Hamilton-Hardin-Grundy-Black Hawk-
Including the cities of Webster City, Iowa Falls, Eldora, Ackley,
Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, 
and Cedar Falls
404 AM CST Tue Jan 25 2022

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL NOON CST WEDNESDAY...

* WHAT...Very cold wind chills. Wind chills as low as 35 below 
  zero.

* WHERE...Parts of northern Iowa.

* WHEN...Until noon CST Wednesday.

* 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.

&&

$$

IAZ033-045-058>060-071>074-251800-
/O.CON.KDMX.WC.Y.0009.000000T0000Z-220125T1800Z/
Sac-Carroll-Guthrie-Dallas-Polk-Adair-Madison-Warren-Marion-
Including the cities of Sac City, Lake View, Odebolt, Wall Lake, 
Schaller, Early, Carroll, Guthrie Center, Panora, Bayard, Casey, 
Perry, Waukee, Adel, Des Moines, Greenfield, Stuart, Adair, 
Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, 
Pella, and Knoxville
404 AM CST Tue Jan 25 2022

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

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

* WHERE...Central Iowa.

* WHEN...Until noon CST Tuesday.

* 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.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/desmoines
878 
WWUS43 KDMX 251502
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
902 AM CST Tue Jan 25 2022

...Bitter Cold Continues Into Wednesday...

.Temperatures will remain cold across much of Iowa for today.
Northern Iowa and portions of central Iowa will continue to see
wind chill values of 10 below zero, and 20 below zero further
north. Temperatures and wind chill values will drastically drop
again overnight and into Wednesday morning. Multiple wind chill
headlines remain in effect across the state of Iowa.

IAZ004>007-015>017-024>028-252315-
/O.EXP.KDMX.WC.W.0002.000000T0000Z-220125T1500Z/
/O.CON.KDMX.WC.W.0003.220126T0600Z-220126T1800Z/
/O.CON.KDMX.WC.Y.0010.000000T0000Z-220126T0600Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Humboldt-Wright-Franklin-Butler-Bremer-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha,
Mason City, Clear Lake, Humboldt, Eagle Grove, Clarion, Belmond, 
Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington,
Allison, Dumont, and Waverly
902 AM CST Tue Jan 25 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT FOR SOME AREAS AND CONTINUES INTO WEDNESDAY MORNING FOR 
OTHER AREAS...

...WIND CHILL WARNING HAS EXPIRED FOR NOW BUT WILL GO BACK INTO
EFFECT FROM MIDNIGHT TONIGHT UNTIL NOON WEDNESDAY...


* WHAT...For the Wind Chill Warning, dangerously cold wind 
  chills expected. Wind chills as low as 40 below zero. For the 
  Wind Chill Advisory, very cold wind chills expected. Wind 
  chills as low as 35 below zero.

* WHERE...North central Iowa.

* WHEN...For the next Wind Chill Warning, from midnight tonight 
  to noon CST Wednesday. For the Wind Chill Advisory, from 9 AM 
  this morning to midnight CST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

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

&&

$$

IAZ023-034-035-046>050-061-062-075-252315-
/O.CON.KDMX.WC.Y.0009.000000T0000Z-220125T1800Z/
/O.CON.KDMX.WC.Y.0011.220126T0300Z-220126T1800Z/
Pocahontas-Calhoun-Webster-Greene-Boone-Story-Marshall-Tama-
Jasper-Poweshiek-Mahaska-
Including the cities of Pocahontas, Laurens, Rolfe, Fonda, 
Gilmore City, Rockwell City, Manson, Lake City, Pomeroy, 
Fort Dodge, Jefferson, Boone, Ames, Marshalltown, Tama, Toledo, 
Traer, Dysart, Gladbrook, Newton, Grinnell, and Oskaloosa
902 AM CST Tue Jan 25 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO NOON CST WEDNESDAY...

* WHAT...For the first Wind Chill Advisory, very cold wind 
  chills. Wind chills as low as 25 below zero. For the second 
  Wind Chill Advisory, very cold wind chills expected. Wind 
  chills as low as 35 below zero.

* WHERE...Parts of northern into central Iowa.

* WHEN...For the first Wind Chill Advisory, until noon CST 
  today. For the second Wind Chill Advisory, from 9 PM this 
  evening to noon CST Wednesday.

* 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. 

&&

$$

IAZ033-045-058>060-071>074-251800-
/O.CON.KDMX.WC.Y.0009.000000T0000Z-220125T1800Z/
Sac-Carroll-Guthrie-Dallas-Polk-Adair-Madison-Warren-Marion-
Including the cities of Sac City, Lake View, Odebolt, Wall Lake, 
Schaller, Early, Carroll, Guthrie Center, Panora, Bayard, Casey, 
Perry, Waukee, Adel, Des Moines, Greenfield, Stuart, Adair, 
Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, 
Pella, and Knoxville
902 AM CST Tue Jan 25 2022

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

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

* WHERE...Central Iowa.

* WHEN...Until noon CST Tuesday.

* 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. 

&&

$$

IAZ036>039-252315-
/O.CON.KDMX.WC.Y.0009.000000T0000Z-220126T1800Z/
Hamilton-Hardin-Grundy-Black Hawk-
Including the cities of Webster City, Iowa Falls, Eldora, Ackley,
Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, 
and Cedar Falls
902 AM CST Tue Jan 25 2022

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

* WHAT...Very cold wind chills. Wind chills as low as 35 below 
  zero.

* WHERE...Parts of northern Iowa.

* WHEN...Until noon CST Wednesday.

* 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. 

&&

$$

For more information from the National Weather Service visit
https://weather.gov/desmoines

What forecasters said that day

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

NWS Des Moines, IA wrote its last area forecast discussion before this wind chill warning went out at Jan 24, 2:41 PM CST, 18 minutes earlier.

Area forecast discussion, Jan 24, 2:41 PM CST, 18 minutes before
Area Forecast Discussion
National Weather Service Des Moines IA
241 PM CST Mon Jan 24 2022

.DISCUSSION.../Tonight through Monday/
Issued at 237 PM CST Mon Jan 24 2022

Take Home Points:

*Another Arctic blast of cold today through Wednesday AM
*Weaker cold intrusion Thursday PM into Friday
*Seasonable in between cold intrusions and otherwise
*Largely dry forecast

Discussion:

Daytime highs were seen across the state early this morning with
most locations warming overnight into this morning on the heels of
southerly to westerly winds ahead of a surface low passage, ranging
from the mid to upper 30s in the SW to the low to mid 20s to the N
and NE. This all came to an abrupt halt as the surface low slid
through to the SE and brought with it a pronounced cold front across
the state this morning and afternoon. Brief periods of blowing snow
have been seen via plow and web cams across northern Iowa, but
impacts have largely been negligible with much of it being
"streamers" across roads versus reduced visibilities. Steep low
level lapse rates to just shy of 900mb have also resulted in cloud
streets/HCR development, resulting in brief periods of snow
showers and visibilities dropping to around a mile. This activity
will subside as strongest CAA and daytime surface heating/low
level lapse rates subside.

Arctic air will continue to filter into the region tonight and result
in a bitter night across much of the state, including nearly state-
wide forecast lows below zero. Expect teens below zero to prevail
across the northern 2 to 3 tiers of counties and to around -10
deg F down to portions of the Highway 30 corridor. With 10 to 15
mph winds, wind chills remain on track to dip into -20 to -35 deg
F territory within the existing wind chill headline areas. Arctic
high will settle into/across the region later Tuesday and Tuesday
night, resulting in the coldest night of the forecast with once
again nearly state wide lows below zero and a few areas of north
central and northeast Iowa potentially reaching -20 deg F or a
couple degrees colder, though with lighter winds under the Arctic
high. Largely little to no change in the geographical placement
of coldest conditions, so have not made any changes to the
existing wind chill headline locations, but have upgraded much of
northern Iowa to a Wind Chill Warning for tonight with a number
of hours in the -30 to -35 deg F range expected. An additional
Wind Chill Warning may be needed for similar area or bit eastward
Tuesday night, but have held off on making additional changes at
this time. Suffice it to say it will be quite cold through
Wednesday morning.

As the Arctic high departs Wednesday, WAA will return to the region
and see temperatures rise into the upper 20s to mid 30s by Thursday,
including likely stable to slowly rising temperatures overnight
Wednesday. The relative warm up will be short lived as a large upper
and surface low moves across Hudson Bay area and drags a cold front
through the Midwest. NBM/ensembles remain predominantly dry within
the area, but enough members depict light QPF/snow that a casual eye
should be kept on it for low-end winter impact potential. This cold
front will drop temperatures again, but not near to the degree of
the existing cold that is filtering in. Remainder of the forecast
will see largely quiet NW flow overhead and gradual height
rises/warming through the weekend and into early next week.

&&

.AVIATION.../For the 18Z TAFS through 18Z Tuesday afternoon/
Issued at 1131 AM CST Mon Jan 24 2022

Sub-VFR conditions will largely prevail through the daytime hours
across sites before returning VFR from NW to SE as ceilings
break/clear. In the meantime, largely MVFR will prevail with
ceilings in the 1200 to 2500 foot range. Pockets of IFR will be
possible, especially in areas that see any brief bursts of snow,
combined with the breezy NW winds, dropping visibilities. As
mentioned, VFR will return to all sites by this evening and look
to remain so through the remainder of the period.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...
Wind Chill Advisory from midnight tonight to noon CST Tuesday
for IAZ045>050-058>062-071>075.

Wind Chill Warning from midnight tonight to 9 AM CST Tuesday for
IAZ004>007-015>017-024>028.

Wind Chill Advisory from 6 PM this evening to midnight CST
tonight for IAZ004>007-015>017-024>028.

Wind Chill Advisory from 9 AM Tuesday to 11 AM CST Wednesday for
IAZ004>007-015>017-024>028.

Wind Chill Advisory from 9 PM this evening to noon CST Tuesday
for IAZ023-033>035.

Wind Chill Advisory from 6 PM this evening to 11 AM CST
Wednesday for IAZ036>039.

&&

DISCUSSION...Curtis
AVIATION...Curtis
Hazardous weather outlook, Jan 24, 3:40 AM CST, 11 hours 19 minutes before
Hazardous Weather Outlook
National Weather Service Des Moines IA
340 AM CST Mon Jan 24 2022

IAZ004>007-015>017-023>028-033>039-250945-
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-
Webster-Hamilton-Hardin-Grundy-Black Hawk-
340 AM CST Mon Jan 24 2022

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Today and tonight

Light snow this morning and afternoon may result in snow covered
roads. Some minor travel impacts may occur at times. Patchy
blowing snow is possible later this morning and afternoon.

A Wind Chill Advisory is in effect for most of the area tonight
through midday Wednesday. Please visit weather.gov/desmoines for
further details.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

A Wind Chill Advisory is in effect for most of the area through
midday Wednesday. Please visit weather.gov/desmoines for further
details.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

IAZ045>050-058>062-071>075-250945-
Carroll-Greene-Boone-Story-Marshall-Tama-Guthrie-Dallas-Polk-
Jasper-Poweshiek-Adair-Madison-Warren-Marion-Mahaska-
340 AM CST Mon Jan 24 2022

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Today and tonight

A Wind Chill Advisory is in effect for most of the area from
midnight tonight through midday Tuesday. Please visit
weather.gov/desmoines for further details.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

A Wind Chill Advisory is in effect for most of the area from
midnight through midday Tuesday. Please visit
weather.gov/desmoines for further details.

Bitter cold and dangerous wind chills will return for Tuesday
night through Wednesday morning across the region. Dangerous wind
chills of 20 to 25 below will impact this area.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

IAZ044-057-070-081>086-092>097-250945-
Crawford-Audubon-Cass-Adams-Union-Clarke-Lucas-Monroe-Wapello-
Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis-
340 AM CST Mon Jan 24 2022

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Today and tonight

Bitter cold with wind chills of 10 to 20 below are expected tonight.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Bitter cold with wind chills of 10 to 20 below are expected
Tuesday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

REV

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 24, 3:22 AM CSTWind Chill AdvisoryDMXAdair, Black Hawk, Boone, Bremer, Butler, Calhoun and 30 more42 hr
Jan 24, 2:59 PM CSTWind Chill AdvisoryDMXBremer, Butler, Carroll, Cerro Gordo, Dallas, Emmet and 11 more42 hr

Nearby

Wind Chill Warnings in Iowa, 2022Every wind chill warning in 2022

Sources

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