Alert archive / Iowa / Wind Chill Warnings in 2018

Wind Chill Warning 1, NWS Des Moines, IA

January 14, 201831 counties in Iowa

NWS Des Moines, IA issued this wind chill warning at Jan 14, 2018, 3:10 PM CST for 31 counties in Iowa. It took effect at Jan 15, 2018, 3:00 AM CST. It was in force for 31 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 14, 2018, 3:10 PM CST (21:10 UTC)
In effect from
Jan 15, 2018, 3:00 AM CST
Expired
Jan 16, 2018, 10:05 AM CST
In force
31 hr
Issued by
NWS Des Moines, IA
All 31 counties

Adair County, IA, Adams County, IA, Audubon County, IA, Boone County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Cerro Gordo County, IA, Crawford County, IA, Dallas County, IA, Emmet County, IA, Franklin County, IA, Greene County, IA, Guthrie County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Humboldt County, IA, Kossuth County, IA, Madison County, IA, Palo Alto County, IA, Pocahontas County, IA, Ringgold County, IA, Sac County, IA, Story County, IA, Taylor County, IA, Union County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA

The radar

The Des Moines radar (KDMX), 67 km from the middle of the area, began a volume at 21:10 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 15, 6:00 AM CSTSNOW 2.22 Ssw Minburn, IASTORM TOTAL.
Jan 15, 6:30 AM CSTSNOW 1Creston, IASNOWFALL FROM SUNDAY.

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

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 9.2 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, Omaha, NE at 12:00Z on 2018-01-14Temperature 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, Omaha, NE at 12:00Z on 2018-01-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 195 square meters per square second.193958Sfc1 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
594 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
195 m²/s²
0-3 km storm-relative helicity
235 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

246 
WWUS43 KDMX 142110
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
310 PM CST Sun Jan 14 2018

...Dangerously Cold Wind Chills from Late Tonight through Tuesday
Morning...

.Another Arctic intrusion will drop temperatures into the single
digits and below from late tonight through Wednesday morning. 
Lows will approach 10 to 15 below zero at times across northern 
Iowa. Combine the cold temperatures with gusty 15 to 25 mph winds
Monday into Tuesday and wind chills will be dangerous at times.
Wind chill values in the 20 below to nearly 40 below zero range
are expected. 

IAZ004>007-015>017-023>026-033>037-150600-
/O.UPG.KDMX.WC.Y.0005.180115T0900Z-180116T1800Z/
/O.NEW.KDMX.WC.W.0001.180115T0900Z-180116T1800Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Sac-Calhoun-Webster-Hamilton-
Hardin-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha,
Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, 
Gilmore City, Humboldt, Eagle Grove, Clarion, Belmond, Hampton, 
Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, 
Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, 
Webster City, Iowa Falls, Eldora, and Ackley
310 PM CST Sun Jan 14 2018

...WIND CHILL WARNING IN EFFECT FROM 3 AM MONDAY TO NOON CST
TUESDAY...

* WHAT...Dangerously cold wind chills expected. The dangerously
  cold wind chills will cause frostbite in as little as 10 minutes
  to exposed skin. Expect wind chills to range from 25 below zero
  to 35 below zero.

* WHERE...Northern Iowa.

* WHEN...3 AM Monday to noon Tuesday.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
the wind will create dangerously low wind chill values. Frost
bite can occur quickly and even hypothermia or death if
precautions are not taken.

$$

IAZ092>097-150600-
/O.EXB.KDMX.WC.Y.0005.180115T2100Z-180116T1800Z/
Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis-
Including the cities of Bedford, Lenox, New Market, Mount Ayr, 
Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville, 
and Bloomfield
310 PM CST Sun Jan 14 2018

...WIND CHILL ADVISORY IN EFFECT FROM 3 PM MONDAY TO NOON CST
TUESDAY...

* WHAT...Very cold wind chills expected. The cold wind chills 
  will cause frostbite in as little as 30 minutes to exposed 
  skin. Expect wind chills to range from 15 below zero to 30 
  below zero.

* WHERE...Southern Iowa.

* WHEN...3 PM Monday to noon Tuesday.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

IAZ057>062-070>075-081>086-150600-
/O.EXA.KDMX.WC.Y.0005.180115T0900Z-180116T1800Z/
Audubon-Guthrie-Dallas-Polk-Jasper-Poweshiek-Cass-Adair-Madison-
Warren-Marion-Mahaska-Adams-Union-Clarke-Lucas-Monroe-Wapello-
Including the cities of Audubon, Exira, Guthrie Center, Panora, 
Bayard, Casey, Perry, Waukee, Adel, Des Moines, Newton, Grinnell,
Atlantic, Greenfield, Stuart, Adair, Fontanelle, Winterset, 
Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, 
Oskaloosa, Corning, Creston, Osceola, Chariton, Albia, 
and Ottumwa
310 PM CST Sun Jan 14 2018

...WIND CHILL ADVISORY IN EFFECT FROM 3 AM MONDAY TO NOON CST
TUESDAY...

* WHAT...Very cold wind chills expected. The cold wind chills will
  cause frostbite in as little as 30 minutes to exposed skin.
  Expect wind chills to range from 15 below zero to 30 below 
  zero.

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

* WHEN...3 AM Monday to noon Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

IAZ027-028-038-039-044>050-150600-
/O.CON.KDMX.WC.Y.0005.180115T0900Z-180116T1800Z/
Butler-Bremer-Grundy-Black Hawk-Crawford-Carroll-Greene-Boone-
Story-Marshall-Tama-
Including the cities of Parkersburg, Clarksville, Shell Rock, 
Greene, Aplington, Allison, Dumont, Waverly, Grundy Center, 
Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, 
Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Tama, 
Toledo, Traer, Dysart, and Gladbrook
310 PM CST Sun Jan 14 2018

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 3 AM MONDAY TO NOON
CST TUESDAY...

* WHAT...Very cold wind chills expected. The cold wind chills will
  cause frostbite in as little as 30 minutes to exposed skin.
  Expect wind chills to range from 15 below zero to 30 below 
  zero.

* WHERE...Central Iowa

* WHEN...3 AM Monday to noon Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

For more information from the National Weather Service visit
http://weather.gov/desmoines
8 follow-up statements
698 
WWUS43 KDMX 150346
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
946 PM CST Sun Jan 14 2018

...Dangerously Cold Wind Chills from Late Tonight through Tuesday
Morning...

.Another Arctic intrusion will produce very cold temperatures late
tonight into Tuesday. The combination of this cold air and the 
winds will produce bitter cold wind chills.

IAZ004>007-015>017-023>026-033>037-151200-
/O.CON.KDMX.WC.W.0001.180115T0900Z-180116T1800Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Sac-Calhoun-Webster-Hamilton-
Hardin-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha,
Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, 
Gilmore City, Humboldt, Eagle Grove, Clarion, Belmond, Hampton, 
Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, 
Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, 
Webster City, Iowa Falls, Eldora, and Ackley
946 PM CST Sun Jan 14 2018

...WIND CHILL WARNING REMAINS IN EFFECT FROM 3 AM MONDAY TO NOON
CST TUESDAY...

* WHAT...Dangerously cold wind chills expected. The dangerously
  cold wind chills will cause frostbite in as little as 10 minutes
  to exposed skin. Expect wind chills to range from 25 below zero
  to 35 below zero.

* WHERE...Northern Iowa.

* WHEN...3 AM Monday to noon Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
the wind will create dangerously low wind chill values. Frost
bite can occur quickly and even hypothermia or death if
precautions are not taken.

$$

IAZ027-028-038-039-044>050-057>062-070>075-081>086-151200-
/O.CON.KDMX.WC.Y.0005.180115T0900Z-180116T1800Z/
Butler-Bremer-Grundy-Black Hawk-Crawford-Carroll-Greene-Boone-
Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-Poweshiek-
Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union-Clarke-Lucas-
Monroe-Wapello-
Including the cities of Parkersburg, Clarksville, Shell Rock, 
Greene, Aplington, Allison, Dumont, Waverly, Grundy Center, 
Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, 
Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Tama, 
Toledo, Traer, Dysart, Gladbrook, Audubon, Exira, Guthrie Center,
Panora, Bayard, Casey, Perry, Waukee, Adel, Des Moines, Newton, 
Grinnell, Atlantic, Greenfield, Stuart, Adair, Fontanelle, 
Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, 
Knoxville, Oskaloosa, Corning, Creston, Osceola, Chariton, Albia,
and Ottumwa
946 PM CST Sun Jan 14 2018

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 3 AM MONDAY TO NOON
CST TUESDAY...

* WHAT...Very cold wind chills expected. The cold wind chills will
  cause frostbite in as little as 30 minutes to exposed skin.
  Expect wind chills to range from 15 below zero to 30 below 
  zero.

* WHERE...Central Iowa

* WHEN...3 AM Monday to noon Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

IAZ092>097-151200-
/O.CON.KDMX.WC.Y.0005.180115T2100Z-180116T1800Z/
Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis-
Including the cities of Bedford, Lenox, New Market, Mount Ayr, 
Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville, 
and Bloomfield
946 PM CST Sun Jan 14 2018

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 3 PM MONDAY TO NOON
CST TUESDAY...

* WHAT...Very cold wind chills expected. The cold wind chills 
  will cause frostbite in as little as 30 minutes to exposed 
  skin. Expect wind chills to range from 15 below zero to 30 
  below zero.

* WHERE...Southern Iowa.

* WHEN...3 PM Monday to noon Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

For more information from the National Weather Service visit
http://weather.gov/desmoines
865 
WWUS43 KDMX 150918
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
318 AM CST Mon Jan 15 2018

...Dangerously Cold Wind Chills Through Tuesday Morning...

.Another Arctic intrusion will produce very cold temperatures
today through Tuesday. The combination of this cold air and strong
northwest winds will produce dangerously cold wind chills.

IAZ004>007-015>017-023>026-033>037-151730-
/O.CON.KDMX.WC.W.0001.000000T0000Z-180116T1800Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Sac-Calhoun-Webster-Hamilton-
Hardin-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha,
Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, 
Gilmore City, Humboldt, Eagle Grove, Clarion, Belmond, Hampton, 
Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, 
Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, 
Webster City, Iowa Falls, Eldora, and Ackley
318 AM CST Mon Jan 15 2018

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

* WHAT...Dangerously cold wind chills expected. Frostbite may occur
  in as little as 10 minutes to exposed skin. Expect wind chills 
  to range from 15 below zero to 35 below zero.

* WHERE...Northern Iowa.

* WHEN...Now to noon Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
strong winds will create dangerously low wind chill values. Frost
bite can occur quickly and even hypothermia or death if precautions
are not taken.

$$

IAZ027-028-038-039-044>050-057>062-070>075-081>086-151730-
/O.CON.KDMX.WC.Y.0005.000000T0000Z-180116T1800Z/
Butler-Bremer-Grundy-Black Hawk-Crawford-Carroll-Greene-Boone-
Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-Poweshiek-
Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union-Clarke-Lucas-
Monroe-Wapello-
Including the cities of Parkersburg, Clarksville, Shell Rock, 
Greene, Aplington, Allison, Dumont, Waverly, Grundy Center, 
Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, 
Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Tama, 
Toledo, Traer, Dysart, Gladbrook, Audubon, Exira, Guthrie Center,
Panora, Bayard, Casey, Perry, Waukee, Adel, Des Moines, Newton, 
Grinnell, Atlantic, Greenfield, Stuart, Adair, Fontanelle, 
Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, 
Knoxville, Oskaloosa, Corning, Creston, Osceola, Chariton, Albia,
and Ottumwa
318 AM CST Mon Jan 15 2018

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

* WHAT...Very cold wind chills expected. The cold wind chills 
  will cause frostbite in as little as 30 minutes to exposed 
  skin. Expect wind chills to range from 5 below zero to 30 
  below zero.

* WHERE...Central Iowa

* WHEN...Now to noon Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the strong winds 
will combine to create low wind chills. Frost bite and hypothermia
can occur if precautions are not taken. Make sure you wear a hat 
and gloves.

$$

IAZ092>097-151730-
/O.CON.KDMX.WC.Y.0005.180115T2100Z-180116T1800Z/
Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis-
Including the cities of Bedford, Lenox, New Market, Mount Ayr, 
Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville, 
and Bloomfield
318 AM CST Mon Jan 15 2018

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON
TO NOON CST TUESDAY...

* WHAT...Very cold wind chills expected. The cold wind chills 
  will cause frostbite in as little as 30 minutes to exposed 
  skin. Expect wind chills to range from 15 below zero to 30 
  below zero.

* WHERE...Southern Iowa.

* WHEN...3 PM this afternoon to noon Tuesday.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

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

REV
186 
WWUS43 KDMX 151346
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
746 AM CST Mon Jan 15 2018

...Dangerously Cold Wind Chills Through Tuesday Morning...

.Another Arctic intrusion will produce very cold temperatures
today through Tuesday. The combination of this cold air and
strong northwest winds will produce dangerously cold wind chills.

IAZ004>007-015>017-023>026-033>037-152200-
/O.CON.KDMX.WC.W.0001.000000T0000Z-180116T1800Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Sac-Calhoun-Webster-Hamilton-
Hardin-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha,
Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, 
Gilmore City, Humboldt, Eagle Grove, Clarion, Belmond, Hampton, 
Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, 
Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, 
Webster City, Iowa Falls, Eldora, and Ackley
746 AM CST Mon Jan 15 2018

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

* WHAT...Dangerously cold wind chills expected. Frostbite may 
  occur in as little as 10 minutes to exposed skin. Expect wind 
  chills to range from 15 below zero to 35 below zero.

* WHERE...Northern Iowa.

* WHEN...Now to noon Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
the wind will create dangerously low wind chill values. Frost
bite can occur quickly and even hypothermia or death if
precautions are not taken.

$$

IAZ027-028-038-039-044>050-057>062-070>075-081>086-152200-
/O.CON.KDMX.WC.Y.0005.000000T0000Z-180116T1800Z/
Butler-Bremer-Grundy-Black Hawk-Crawford-Carroll-Greene-Boone-
Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-Poweshiek-
Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union-Clarke-Lucas-
Monroe-Wapello-
Including the cities of Parkersburg, Clarksville, Shell Rock, 
Greene, Aplington, Allison, Dumont, Waverly, Grundy Center, 
Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, 
Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Tama, 
Toledo, Traer, Dysart, Gladbrook, Audubon, Exira, Guthrie Center,
Panora, Bayard, Casey, Perry, Waukee, Adel, Des Moines, Newton, 
Grinnell, Atlantic, Greenfield, Stuart, Adair, Fontanelle, 
Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, 
Knoxville, Oskaloosa, Corning, Creston, Osceola, Chariton, Albia,
and Ottumwa
746 AM CST Mon Jan 15 2018

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

* WHAT...Very cold wind chills expected. The cold wind chills 
  will cause frostbite in as little as 30 minutes to exposed 
  skin. Expect wind chills to range from 5 below zero to 30 
  below zero.

* WHERE...Central Iowa

* WHEN...Now to noon Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

IAZ092>097-152200-
/O.CON.KDMX.WC.Y.0005.180115T2100Z-180116T1800Z/
Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis-
Including the cities of Bedford, Lenox, New Market, Mount Ayr, 
Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville, 
and Bloomfield
746 AM CST Mon Jan 15 2018

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON
TO NOON CST TUESDAY...

* WHAT...Very cold wind chills expected. The cold wind chills 
  will cause frostbite in as little as 30 minutes to exposed 
  skin. Expect wind chills to range from 15 below zero to 30 
  below zero.

* WHERE...Southern Iowa.

* WHEN...3 PM this afternoon to noon Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

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

REV
244 
WWUS43 KDMX 151651
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
1051 AM CST Mon Jan 15 2018

...Dangerously Cold Wind Chills Through Tuesday Morning...

.Another Arctic intrusion will produce very cold temperatures
today through Tuesday. The combination of this cold air and
strong northwest winds will produce dangerously cold wind chills.

IAZ004>007-015>017-023>026-033>037-160100-
/O.CON.KDMX.WC.W.0001.000000T0000Z-180116T1800Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Sac-Calhoun-Webster-Hamilton-
Hardin-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha,
Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, 
Gilmore City, Humboldt, Eagle Grove, Clarion, Belmond, Hampton, 
Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, 
Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, 
Webster City, Iowa Falls, Eldora, and Ackley
1051 AM CST Mon Jan 15 2018

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

* WHAT...Dangerously cold wind chills occurring. Frostbite may 
  occur in as little as 10 minutes to exposed skin. Expect wind 
  chills to range from 15 below zero to 35 below zero.

* WHERE...Northern Iowa.

* WHEN...Now through noon Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
the wind will create dangerously low wind chill values. Frost
bite can occur quickly and even hypothermia or death if
precautions are not taken.

$$

IAZ027-028-038-039-044>050-057>062-070>075-081>086-160100-
/O.CON.KDMX.WC.Y.0005.000000T0000Z-180116T1800Z/
Butler-Bremer-Grundy-Black Hawk-Crawford-Carroll-Greene-Boone-
Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-Poweshiek-
Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union-Clarke-Lucas-
Monroe-Wapello-
Including the cities of Parkersburg, Clarksville, Shell Rock, 
Greene, Aplington, Allison, Dumont, Waverly, Grundy Center, 
Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, 
Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Tama, 
Toledo, Traer, Dysart, Gladbrook, Audubon, Exira, Guthrie Center,
Panora, Bayard, Casey, Perry, Waukee, Adel, Des Moines, Newton, 
Grinnell, Atlantic, Greenfield, Stuart, Adair, Fontanelle, 
Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, 
Knoxville, Oskaloosa, Corning, Creston, Osceola, Chariton, Albia,
and Ottumwa
1051 AM CST Mon Jan 15 2018

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

* WHAT...Very cold wind chills occurring. The cold wind chills 
  will cause frostbite in as little as 30 minutes to exposed skin.
  Expect wind chills to range from 5 below zero to 30 below zero.

* WHERE...Central Iowa

* WHEN...Now through noon Tuesday.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

IAZ092>097-160100-
/O.CON.KDMX.WC.Y.0005.180115T2100Z-180116T1800Z/
Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis-
Including the cities of Bedford, Lenox, New Market, Mount Ayr, 
Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville, 
and Bloomfield
1051 AM CST Mon Jan 15 2018

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON
TO NOON CST TUESDAY...

* WHAT...Very cold wind chills expected. The cold wind chills 
  will cause frostbite in as little as 30 minutes to exposed 
  skin. Expect wind chills to range from 15 below zero to 30 
  below zero.

* WHERE...Southern Iowa.

* WHEN...3 PM this afternoon to noon Tuesday.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

For more information from the National Weather Service visit
http://weather.gov/desmoines
157 
WWUS43 KDMX 152107
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
307 PM CST Mon Jan 15 2018

...Dangerously Cold Wind Chills into Tuesday Morning...

.Another Arctic intrusion will continue to produce very cold 
temperatures tonight into Tuesday. The combination of this cold 
air and strong northwest winds will continue to produce 
dangerously cold wind chills.

IAZ044>048-057>059-070>072-081-082-092-093-160600-
/O.UPG.KDMX.WC.Y.0005.000000T0000Z-180116T1800Z/
/O.EXA.KDMX.WC.W.0001.000000T0000Z-180116T1800Z/
Crawford-Carroll-Greene-Boone-Story-Audubon-Guthrie-Dallas-Cass-
Adair-Madison-Adams-Union-Taylor-Ringgold-
Including the cities of Denison, Carroll, Jefferson, Boone, Ames,
Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, Perry, 
Waukee, Adel, Atlantic, Greenfield, Stuart, Adair, Fontanelle, 
Winterset, Earlham, Corning, Creston, Bedford, Lenox, New Market,
and Mount Ayr
307 PM CST Mon Jan 15 2018

...WIND CHILL WARNING IN EFFECT UNTIL NOON CST TUESDAY...

* WHAT...Dangerously cold wind chills expected. Frostbite may
  occur in as little as 10 minutes to exposed skin. Expect wind
  chills to range from 20 below zero to 35 below zero.

* WHERE...Portions of central and southwest Iowa.

* WHEN...Now through noon Tuesday.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
the wind will create dangerously low wind chill values. Frost
bite can occur quickly and even hypothermia or death if
precautions are not taken.

$$

IAZ004>007-015>017-023>026-033>037-160600-
/O.CON.KDMX.WC.W.0001.000000T0000Z-180116T1800Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Sac-Calhoun-Webster-Hamilton-
Hardin-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha,
Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, 
Gilmore City, Humboldt, Eagle Grove, Clarion, Belmond, Hampton, 
Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, 
Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, 
Webster City, Iowa Falls, Eldora, and Ackley
307 PM CST Mon Jan 15 2018

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

* WHAT...Dangerously cold wind chills occurring. Frostbite may
  occur in as little as 10 minutes to exposed skin. Expect wind
  chills to range from 25 below zero to 35 below zero.

* WHERE...North central Iowa.

* WHEN...Now through noon Tuesday.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
the wind will create dangerously low wind chill values. Frost
bite can occur quickly and even hypothermia or death if
precautions are not taken.

$$

IAZ027-028-038-039-049-050-060>062-073>075-083>086-094>097-160600-
/O.CON.KDMX.WC.Y.0005.000000T0000Z-180116T1800Z/
Butler-Bremer-Grundy-Black Hawk-Marshall-Tama-Polk-Jasper-
Poweshiek-Warren-Marion-Mahaska-Clarke-Lucas-Monroe-Wapello-
Decatur-Wayne-Appanoose-Davis-
Including the cities of Parkersburg, Clarksville, Shell Rock, 
Greene, Aplington, Allison, Dumont, Waverly, Grundy Center, 
Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, 
Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Des Moines,
Newton, Grinnell, Indianola, Norwalk, Carlisle, Pella, Knoxville,
Oskaloosa, Osceola, Chariton, Albia, Ottumwa, Lamoni, Leon, 
Corydon, Seymour, Allerton, Humeston, Centerville, and Bloomfield
307 PM CST Mon Jan 15 2018

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

* WHAT...Very cold wind chills occurring. The cold wind chills
  will cause frostbite in as little as 30 minutes to exposed skin.
  Expect wind chills to range from 20 below zero to 30 below 
  zero.

* WHERE...Portions of central and south central Iowa

* WHEN...Now through noon Tuesday.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

For more information from the National Weather Service visit
http://weather.gov/desmoines
221 
WWUS43 KDMX 160259
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
859 PM CST Mon Jan 15 2018

...Dangerously Cold Wind Chills Occurring Now and Lasting Through
Tuesday Morning...

.Wind chill values have already reached the minus 20 to minus 30
degree range across much of Iowa... with a few locations
in northern Iowa nearing minus 35 degrees. These dangerously cold
wind chills will continue through tonight and tomorrow morning.

IAZ004>007-015>017-023>026-033>037-044>048-057>059-070>072-081-
082-092-093-161800-
/O.CON.KDMX.WC.W.0001.000000T0000Z-180116T1800Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Sac-Calhoun-Webster-Hamilton-
Hardin-Crawford-Carroll-Greene-Boone-Story-Audubon-Guthrie-Dallas-
Cass-Adair-Madison-Adams-Union-Taylor-Ringgold-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha,
Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, 
Gilmore City, Humboldt, Eagle Grove, Clarion, Belmond, Hampton, 
Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, 
Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, 
Webster City, Iowa Falls, Eldora, Ackley, Denison, Carroll, 
Jefferson, Boone, Ames, Audubon, Exira, Guthrie Center, Panora, 
Bayard, Casey, Perry, Waukee, Adel, Atlantic, Greenfield, Stuart,
Adair, Fontanelle, Winterset, Earlham, Corning, Creston, Bedford,
Lenox, New Market, and Mount Ayr
859 PM CST Mon Jan 15 2018

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

* WHAT...Dangerously cold wind chills expected. The dangerously 
  cold wind chills will cause frostbite in as little as 10 
  minutes to exposed skin. Expect wind chills to range from 15 
  below zero to 30 below zero.

* WHERE...Portions of central and southwest Iowa.

* WHEN...Now to noon Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
the wind will create dangerously low wind chill values. Frost
bite can occur quickly and even hypothermia or death if
precautions are not taken.

$$

IAZ027-028-038-039-049-050-060>062-073>075-083>086-094>097-161800-
/O.CON.KDMX.WC.Y.0005.000000T0000Z-180116T1800Z/
Butler-Bremer-Grundy-Black Hawk-Marshall-Tama-Polk-Jasper-
Poweshiek-Warren-Marion-Mahaska-Clarke-Lucas-Monroe-Wapello-
Decatur-Wayne-Appanoose-Davis-
Including the cities of Parkersburg, Clarksville, Shell Rock, 
Greene, Aplington, Allison, Dumont, Waverly, Grundy Center, 
Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, 
Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Des Moines,
Newton, Grinnell, Indianola, Norwalk, Carlisle, Pella, Knoxville,
Oskaloosa, Osceola, Chariton, Albia, Ottumwa, Lamoni, Leon, 
Corydon, Seymour, Allerton, Humeston, Centerville, and Bloomfield
859 PM CST Mon Jan 15 2018

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

* WHAT...Very cold wind chills expected. The cold wind chills 
  will cause frostbite in as little as 30 minutes to exposed 
  skin. Expect wind chills to range from 15 below zero to 25 
  below zero.

* WHERE...Portions of central and south central Iowa

* WHEN...Now to noon Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

For more information from the National Weather Service visit
http://weather.gov/desmoines
221 
WWUS43 KDMX 161032
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
432 AM CST Tue Jan 16 2018

...Dangerously Cold Wind Chills This Morning...

.Arctic air will remain entrenched across Iowa this morning with
brisk northwest winds making matters worse often producing wind 
chills 20 to 25 degrees below actual air temperatures already in 
the single digits above and below zero. 

IAZ004>007-015>017-023>026-033>037-044>048-057>059-070>072-081-
082-092-093-161800-
/O.CON.KDMX.WC.W.0001.000000T0000Z-180116T1800Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Sac-Calhoun-Webster-Hamilton-
Hardin-Crawford-Carroll-Greene-Boone-Story-Audubon-Guthrie-Dallas-
Cass-Adair-Madison-Adams-Union-Taylor-Ringgold-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha,
Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, 
Gilmore City, Humboldt, Eagle Grove, Clarion, Belmond, Hampton, 
Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, 
Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, 
Webster City, Iowa Falls, Eldora, Ackley, Denison, Carroll, 
Jefferson, Boone, Ames, Audubon, Exira, Guthrie Center, Panora, 
Bayard, Casey, Perry, Waukee, Adel, Atlantic, Greenfield, Stuart,
Adair, Fontanelle, Winterset, Earlham, Corning, Creston, Bedford,
Lenox, New Market, and Mount Ayr
432 AM CST Tue Jan 16 2018

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

* WHAT...Dangerously cold wind chills expected. The dangerously
  cold wind chills may cause frostbite in as little as 10 minutes
  to exposed skin. Expect wind chills to range from 15 below zero
  to 30 below zero or less.

* WHERE...Portions of central and southwest Iowa.

* WHEN...Now to noon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
the wind will create dangerously low wind chill values. Frost
bite can occur quickly and even hypothermia or death if
precautions are not taken.

$$

IAZ027-028-038-039-049-050-060>062-073>075-083>086-094>097-161800-
/O.CON.KDMX.WC.Y.0005.000000T0000Z-180116T1800Z/
Butler-Bremer-Grundy-Black Hawk-Marshall-Tama-Polk-Jasper-
Poweshiek-Warren-Marion-Mahaska-Clarke-Lucas-Monroe-Wapello-
Decatur-Wayne-Appanoose-Davis-
Including the cities of Parkersburg, Clarksville, Shell Rock, 
Greene, Aplington, Allison, Dumont, Waverly, Grundy Center, 
Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, 
Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Des Moines,
Newton, Grinnell, Indianola, Norwalk, Carlisle, Pella, Knoxville,
Oskaloosa, Osceola, Chariton, Albia, Ottumwa, Lamoni, Leon, 
Corydon, Seymour, Allerton, Humeston, Centerville, and Bloomfield
432 AM CST Tue Jan 16 2018

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

* WHAT...Very cold wind chills expected. The cold wind chills may  
  cause frostbite in as little as 30 minutes to exposed skin. 
  Expect wind chills to range from 10 below zero to 25 below zero.

* WHERE...Portions of central and south central Iowa

* WHEN...Now to noon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

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

Small
424 
WWUS43 KDMX 161605
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
1005 AM CST Tue Jan 16 2018

...Very Cold Wind Chills This Morning...


IAZ004>007-015>017-023>025-033>036-044>047-057>059-070>072-081-
082-092-093-161800-
/O.CAN.KDMX.WC.W.0001.000000T0000Z-180116T1800Z/
/O.EXA.KDMX.WC.Y.0005.000000T0000Z-180116T1800Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Sac-Calhoun-Webster-Hamilton-Crawford-
Carroll-Greene-Boone-Audubon-Guthrie-Dallas-Cass-Adair-Madison-
Adams-Union-Taylor-Ringgold-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha,
Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, 
Gilmore City, Humboldt, Eagle Grove, Clarion, Belmond, Sac City, 
Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, 
Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Denison, 
Carroll, Jefferson, Boone, Audubon, Exira, Guthrie Center, 
Panora, Bayard, Casey, Perry, Waukee, Adel, Atlantic, Greenfield,
Stuart, Adair, Fontanelle, Winterset, Earlham, Corning, Creston, 
Bedford, Lenox, New Market, and Mount Ayr
1005 AM CST Tue Jan 16 2018

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...WIND CHILL WARNING IS CANCELLED...

* WHAT...Very cold wind chills occurring. The cold wind chills 
  may cause frostbite in as little as 30 minutes to exposed skin. 
  Expect wind chills to range from 10 below zero to 25 below zero.

* WHERE...Portions of central Iowa.

* WHEN...Now to noon.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

IAZ026-037-048-161715-
/O.CAN.KDMX.WC.W.0001.000000T0000Z-180116T1800Z/
Franklin-Hardin-Story-
Including the cities of Hampton, Iowa Falls, Eldora, Ackley, 
and Ames
1005 AM CST Tue Jan 16 2018

...WIND CHILL WARNING IS CANCELLED...

Wind chills have warmed into the 10 below to 20 below range above
warning criteria, thus the warning has been cancelled. Wind chills
and temperatures will continue to warm through the remainder of
the day. 

$$

IAZ027-028-038-039-049-050-161715-
/O.CAN.KDMX.WC.Y.0005.000000T0000Z-180116T1800Z/
Butler-Bremer-Grundy-Black Hawk-Marshall-Tama-
Including the cities of Parkersburg, Clarksville, Shell Rock, 
Greene, Aplington, Allison, Dumont, Waverly, Grundy Center, 
Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, 
Marshalltown, Tama, Toledo, Traer, Dysart, and Gladbrook
1005 AM CST Tue Jan 16 2018

...WIND CHILL ADVISORY IS CANCELLED...

Wind chills have warmed into the 10 below to 20 below range above
advisory criteria, thus the advisory has been cancelled. Wind 
chills and temperatures will continue to warm through the 
remainder of the day. 

$$

IAZ060>062-073>075-083>086-094>097-161800-
/O.CON.KDMX.WC.Y.0005.000000T0000Z-180116T1800Z/
Polk-Jasper-Poweshiek-Warren-Marion-Mahaska-Clarke-Lucas-Monroe-
Wapello-Decatur-Wayne-Appanoose-Davis-
Including the cities of Des Moines, Newton, Grinnell, Indianola, 
Norwalk, Carlisle, Pella, Knoxville, Oskaloosa, Osceola, 
Chariton, Albia, Ottumwa, Lamoni, Leon, Corydon, Seymour, 
Allerton, Humeston, Centerville, and Bloomfield
1005 AM CST Tue Jan 16 2018

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

* WHAT...Very cold wind chills occurring. The cold wind chills 
  may cause frostbite in as little as 30 minutes to exposed skin. 
  Expect wind chills to range from 10 below zero to 25 below zero.

* WHERE...Portions of central Iowa

* WHEN...Now to noon.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

For more information from the National Weather Service visit
http://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 14, 3:04 PM CST, 6 minutes earlier.

Area forecast discussion, Jan 14, 3:04 PM CST, 6 minutes before
Area Forecast Discussion
National Weather Service Des Moines IA
304 PM CST Sun Jan 14 2018

.SHORT TERM.../Tonight through Monday/
Issued at 304 PM CST Sun Jan 14 2018

Initial shortwave trough has impacted the southern forecast area
much of the day and will continue to push southeastward into the OH
valley region this evening. Stronger upper trough digging through ND
will continue to dig southeastward through the forecast area
tonight, with the upper low closing off and remaining in place
across the region into Monday. At the surface have an area of low
pressure stretching from far SW Ontario through nrn MN and into NE
SD. Strong southerly flow in advance of this system with WAA in
place today and moisture advection. Band of snow oriented along the
sfc trough axis and ahead of it in vicinity of the baroclinic zone
aloft, with a westward extent along the cold front moving through SE
ND and wrn SD. As the low drops southeastward into the state this
evening, the area of snow to move through from northwest to
southeast bringing a burst of fairly intense snowfall to the
forecast area. Snow already beginning to move into far northwest
Iowa, and should continue to translate southeast through midnight.
Expect a brief period of 1-3 hours where visibilities drop to around
1-2 miles or less with the snow. Given the brief burst of snow,
expect a quick 1-2 inches, especially in the northeastern half of
the forecast area. As the snow tapers off, northwest winds are
expected to pick up behind the cold front. Strong sfc pres gradient
in place, with an isallobaric push toward 06-09z across much of the
area, far south 09-12z. Bufkit winds showing 25 to 30 kts in the
mixed layer which given the strong CAA should allow much of these
winds to transfer to the sfc. Therefore expect sustained winds
behind the front of around 25 mph, with gusts possible to 35-40 mph.
This should result in some areas of blowing snow late tonight into
early Monday. Some concern as to how low visibilities may be reduced
given the fact that the strong winds will occur after the end of the
snow. Therefore expect mainly vsbys into the 2-5 mile range with the
winds, and more widespread drifting of snow across roads into Monday
morning. Even though winds stay up into Tuesday afternoon/evening,
the snowpack should blow itself out, with the snow becoming
compacted sometime late tonight into early Monday. Therefore just
kept the BLSN mention in through 18z Monday.

Temperatures to fall with the increasing winds tonight behind the
front, will send wind chills falling late tonight into the 20s to
30s below range. These low values continue into Monday, with a few
hours where they may rise above wind chill advisory/warning
criteria. However values will dip again into Monday evening,
therefore have upgraded the north into a Wind Chill Warning starting
late tonight, and expanded the advisory to the south across much of
the forecast area.

.LONG TERM.../Monday night through Sunday/
Issued at 304 PM CST Sun Jan 14 2018

Another surge of cold air to filter southward into the forecast area
as the upper trough continues to wobble across the area aloft. This
should result in a blanket of low stratus in place and possibly some
flurries in the cyclonic flow pattern aloft Monday night into
Tuesday. Additionally, winds to remain up through Monday night into
Tuesday with the arctic air in place. This will keep wind chills in
the 20s below to 30s below range into Tuesday morning as
temperatures drop into the 5 below to 15 below range Tuesday night.
Therefore continued the wind chill headlines into Tuesday morning.

Upper trough to begin to shift eastward late Tuesday with some
moderation in temperatures expected for mid-week and upper ridging
across the central US. Therefore have dry conditions for Tuesday
into Friday, with temperatures warming each day. Expect temps into
the 30s and 40s toward Friday as WAA picks up ahead of deepening
southwestern US upper trough. This system will eject northeastward
through the central US and is on track to bring the next widespread
chance of precipitation to the state. Currently temperatures will
hover around freezing and could bring a rain/snow mix to much of the
forecast area for mainly late Saturday into Sunday.

&&

.AVIATION.../For the 18Z TAFS through 18Z Monday afternoon/
Issued at 11590 AM CST Sun Jan 14 2018

Very light snow with MVFR to low VFR CIGS in place this afternoon.
Gusty southerly winds at times. This evening another wave of snow
to move through with VSBYS dropping to around 1 mile at times
with the snow. Winds to shift around to the northwest tonight, and
increase to become strong and gusty. Some BLSN possible
especially in the north. Right now have highlighted with low
VFR/MVFR VSBYS.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...
Wind Chill Advisory from 3 AM Monday to noon CST Tuesday for
IAZ027-028-038-039-044>050-057>062-070>075-081>086.

Wind Chill Warning from 3 AM Monday to noon CST Tuesday for
IAZ004>007-015>017-023>026-033>037.

Wind Chill Advisory from 3 PM Monday to noon CST Tuesday for
IAZ092>097.

&&

SHORT TERM...Beerends
LONG TERM...Beerends
AVIATION...Beerends
Hazardous weather outlook, Jan 14, 4:04 AM CST, 11 hours 6 minutes before
Hazardous Weather Outlook
National Weather Service Des Moines IA
404 AM CST Sun Jan 14 2018

IAZ057>062-070>075-081>086-092>097-151015-
Audubon-Guthrie-Dallas-Polk-Jasper-Poweshiek-Cass-Adair-Madison-
Warren-Marion-Mahaska-Adams-Union-Clarke-Lucas-Monroe-Wapello-
Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis-
404 AM CST Sun Jan 14 2018

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Today and tonight

Light snowfall will pass through today with accumulations
generally around an inch or less. Patchy blowing may occur
this evening and overnight as strong NW winds pick up behind the
cold front.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Very cold wind chills can be expected Monday through Wednesday
morning. The coldest night will be Monday night with wind chill
values potentially approaching 25 to 30 degrees below zero in
some areas of central and southern Iowa.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

IAZ004>007-015>017-023>028-033>039-044>050-151015-
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-
Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene-
Boone-Story-Marshall-Tama-
404 AM CST Sun Jan 14 2018

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Today and tonight

Light snowfall will pass through today with accumulations
generally around 2 inches or less. Patchy blowing may occur this
evening and overnight as strong NW winds pick up behind the cold
front. Wind chills will drop into the 20 to 30 degrees below zero
range overnight.

A Wind Chill Advisory is in effect from 3 AM Monday through noon
Tuesday. Please refer to the National Weather Service website at
weather.gov/desmoines for further details.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Very cold wind chills can be expected Monday through Wednesday
morning. The coldest night will be Monday night with wind chill
values potentially approaching 40 degrees below zero in some
areas of northern Iowa.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

CURTIS

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 14, 3:47 AM CSTWind Chill AdvisoryDMXAdair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more56 hr

Nearby

Wind Chill Warnings in Iowa, 2018Every wind chill warning in 2018

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.