Alert archive / Iowa / Blizzard Warnings in 2020

Blizzard Warning 2, NWS Des Moines, IA

December 22, 202015 counties in Iowa

NWS Des Moines, IA issued this blizzard warning at Dec 22, 2020, 9:01 PM CST for 15 counties in Iowa. It took effect at Dec 23, 2020, 12:00 PM CST. It was in force for 15 hr. 1 report 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
Dec 22, 2020, 9:01 PM CST (03:01 UTC)
In effect from
Dec 23, 2020, 12:00 PM CST
Expired
Dec 24, 2020, 3:00 AM CST
In force
15 hr
Issued by
NWS Des Moines, IA

Counties Calhoun County, IA, Carroll County, IA, Cerro Gordo County, IA, Crawford County, IA, Emmet County, IA, Hancock County, IA, Humboldt County, IA, Kossuth County, IA, Palo Alto County, IA, Pocahontas County, IA, Sac County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA

The radar

The Des Moines radar (KDMX), 128 km from the middle of the area, began a volume at 02:59 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
Dec 23, 6:00 PM CSTHEAVY SNOW 2.5Fort Dodge, IACOCORAHS OBSERVER REPORTS 2.5 INCHES OF SNOW IN 45 MINUTES.

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

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 3.0 hours before the alert went out and 234 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2020-12-23Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2020-12-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 850 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1598 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
850 m²/s²
0-3 km storm-relative helicity
949 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

491 
WWUS43 KDMX 230301
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
901 PM CST Tue Dec 22 2020

...Hazardous Travel from Snow and Blowing Snow Wednesday...

.A strong cold front will bring falling temperatures, gusty
northwest winds, and snowfall to the area. Although current
forecast snowfall amounts are not heavy, the combination of
falling snow and winds gusting in excess of 50 mph at times are
expected to create areas of blowing snow and low visibility.
Those with travel plans Wednesday afternoon and evening are
encouraged to plan ahead and be prepared for wintry travel
conditions.

IAZ004-231115-
/O.UPG.KDMX.WW.Y.0023.201223T1800Z-201224T0600Z/
/O.NEW.KDMX.BZ.W.0002.201223T1800Z-201224T0600Z/
Emmet-
Including the city of Estherville
901 PM CST Tue Dec 22 2020

...BLIZZARD WARNING IN EFFECT FROM NOON WEDNESDAY TO MIDNIGHT CST
WEDNESDAY NIGHT...

* WHAT...Blizzard conditions expected. Total snow accumulations of
  1 to 3 inches. Winds gusting as high as 55 mph.

* WHERE...Northwest Iowa.

* WHEN...From noon Wednesday to midnight CST Wednesday night.

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

* ADDITIONAL DETAILS...Snowfall totals remain uncertain at this
  time. Amounts may trend higher in future updates.

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. 

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

&&

$$

IAZ016-024-034-035-231115-
/O.EXA.KDMX.WW.Y.0023.201223T1800Z-201224T0600Z/
Hancock-Humboldt-Calhoun-Webster-
Including the cities of Garner, Britt, Kanawha, Humboldt, 
Rockwell City, Manson, Lake City, Pomeroy, and Fort Dodge
901 PM CST Tue Dec 22 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON WEDNESDAY TO
MIDNIGHT CST WEDNESDAY NIGHT...

* WHAT...Snow expected. Total snow accumulations of up to one 
  inch. Winds gusting as high as 45 to 55 mph.

* WHERE...Northwest to north central Iowa.

* WHEN...From noon Wednesday to midnight CST Wednesday night.

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

* ADDITIONAL DETAILS...Snowfall totals remain uncertain at this 
  time. Amounts may trend higher in future updates.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

IAZ005-006-015-023-033-044-231115-
/O.CON.KDMX.WW.Y.0023.201223T1800Z-201224T0600Z/
Kossuth-Winnebago-Palo Alto-Pocahontas-Sac-Crawford-
Including the cities of Algona, Forest City, Lake Mills, 
Emmetsburg, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, 
Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, 
and Denison
901 PM CST Tue Dec 22 2020

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

* WHAT...Snow and blowing snow expected. Total snow 
  accumulations of one inch or more. Winds gusting as high as 45 
  to 55 mph.

* WHERE...Northwest into north central Iowa.

* WHEN...From noon Wednesday to midnight CST Wednesday night.

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

* ADDITIONAL DETAILS...Snowfall totals remain uncertain at this 
  time. Amounts may trend higher in future updates.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

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

&&

$$

For more information from the National Weather Service visit
https://weather.gov/desmoines
7 follow-up statements
517 
WWUS43 KDMX 230950
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
350 AM CST Wed Dec 23 2020

...Impactful Winter Storm to Bring Blizzard Conditions and
Strong Winds to the Region Today and This Evening...

.A strengthening winter storm will strong northwest winds with 
light to moderate snowfall to the area today. Falling temperatures
with bitter cold conditions will follow late tonight into Thursday
morning. The combination of falling snow and winds gusting in 
excess of 50 mph at times are expected to create blizzard 
conditions northwest and north. Those with travel plans today
are encouraged to plan ahead and be prepared to alter plans if 
travel is being considered for portions of northwest, northern 
Iowa, much of Minnesota or the eastern Dakotas. 

IAZ005-006-015-016-023-024-033-034-044-231800-
/O.UPG.KDMX.WW.Y.0023.201223T1800Z-201224T0600Z/
/O.EXA.KDMX.BZ.W.0002.201223T1800Z-201224T0600Z/
Kossuth-Winnebago-Palo Alto-Hancock-Pocahontas-Humboldt-Sac-
Calhoun-Crawford-
Including the cities of Algona, Forest City, Lake Mills, 
Emmetsburg, Garner, Britt, Kanawha, Pocahontas, Laurens, Rolfe, 
Fonda, Gilmore City, Humboldt, Sac City, Lake View, Odebolt, 
Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, 
Pomeroy, and Denison
350 AM CST Wed Dec 23 2020

...BLIZZARD WARNING IN EFFECT FROM NOON TODAY TO MIDNIGHT CST
TONIGHT...

* WHAT...Blizzard conditions expected. Total snow accumulations of
  2 to 4 inches with the higher totals nearer the Iowa Minnesota 
  border. Winds gusting as high as 50 to 55 mph.

* WHERE...Northwest and Northern Iowa

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

* IMPACTS...Snow and blowing snow will significantly reduce 
  visibility to near zero at times this afternoon and evening; 
  especially northwest and north. 

* ADDITIONAL DETAILS...Dangerous travel may develop this afternoon
  and this evening.

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. 

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

&&

$$

IAZ007-045-231800-
/O.EXA.KDMX.BZ.W.0002.201223T1800Z-201224T0600Z/
Worth-Carroll-
Including the cities of Northwood, Manly, and Carroll
350 AM CST Wed Dec 23 2020

...BLIZZARD WARNING IN EFFECT FROM NOON TODAY TO MIDNIGHT CST
TONIGHT...

* WHAT...Blizzard conditions expected. Total snow accumulations of
  1 to 2 inches. Winds gusting as high as 50 mph.

* WHERE...Portions of Western Iowa

* WHEN...From noon Wednesday to midnight CST Wednesday night.

* IMPACTS...Blizzard conditions at times this afternoon and
  evening. Winds gusting as high as 45 to 50 mph at times 
  reducing visibility to near zero at times mainly this afternoon.

* ADDITIONAL DETAILS...Very poor to dangerous travel may develop
  this afternoon and early evening. 

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. 

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

&&

$$

IAZ004-231800-
/O.CON.KDMX.BZ.W.0002.201223T1800Z-201224T0600Z/
Emmet-
Including the city of Estherville
350 AM CST Wed Dec 23 2020

...BLIZZARD WARNING REMAINS IN EFFECT FROM NOON TODAY TO MIDNIGHT
CST TONIGHT...

* WHAT...Blizzard conditions expected. Total snow accumulations of
  4 to 5 inches. Winds gusting as high as 55 mph.

* WHERE...Northwest Iowa.

* WHEN...From noon Wednesday to midnight CST Wednesday night.

* IMPACTS...Snow and blowing snow will significantly reduce 
  visibility to near zero at times this afternoon and evening.

* ADDITIONAL DETAILS...Dangerous travel may develop this 
  afternoon and this evening.

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. 

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

&&

$$

IAZ017-025-026-036-046-047-057-058-070-231800-
/O.EXA.KDMX.WW.Y.0023.201223T1800Z-201224T0600Z/
Cerro Gordo-Wright-Franklin-Hamilton-Greene-Boone-Audubon-Guthrie-
Cass-
Including the cities of Mason City, Clear Lake, Eagle Grove, 
Clarion, Belmond, Hampton, Webster City, Jefferson, Boone, 
Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, 
and Atlantic
350 AM CST Wed Dec 23 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO MIDNIGHT
CST TONIGHT...

* WHAT...Snow expected. Total snow accumulations of up to 2 
  inches. Winds gusting as high as 45 mph.

* WHERE...Portions of Western, Central and Northern Iowa

* WHEN...From noon Wednesday to midnight CST Wednesday night.

* IMPACTS...Snow and blowing snow will significantly reduce
  visibility at times this afternoon and evening and result in
  hazardous travel.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

IAZ035-231800-
/O.CON.KDMX.WW.Y.0023.201223T1800Z-201224T0600Z/
Webster-
Including the city of Fort Dodge
350 AM CST Wed Dec 23 2020

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

* WHAT...Snow expected. Total snow accumulations of 2 to 3 
  inches. Winds gusting as high as 45 to 55 mph.

* WHERE...Northwest to north central Iowa.

* WHEN...From noon Wednesday to midnight CST Wednesday night.

* IMPACTS...Snow and blowing snow will significantly reduce
  visibility at times this afternoon and evening and result in
  hazardous travel to dangerous travel.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

For more information from the National Weather Service visit
https://weather.gov/desmoines
232 
WWUS43 KDMX 231643
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
1043 AM CST Wed Dec 23 2020

...Impactful Winter Storm to Bring Blizzard Conditions and Strong
Winds to the Region Today and This Evening...

.A strengthening winter storm with strong northwest winds and 
light to moderate snowfall will continue to traverse the area
today and tonight. Falling temperatures, inducing bitter cold 
conditions will follow late tonight into Thursday morning. The 
combination of falling snow and winds gusting in excess of 50 mph 
at times are expected to create blizzard conditions across 
northwest and northern Iowa. Those with travel plans today are 
encouraged to plan accordingly and be prepared to alter or cancel 
plans if travel is being considered in portions of northwest or
northern Iowa, much of Minnesota, or the eastern Dakotas.

IAZ004>007-015-016-023-024-033-034-044-045-240045-
/O.CON.KDMX.BZ.W.0002.201223T1800Z-201224T0600Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Pocahontas-
Humboldt-Sac-Calhoun-Crawford-Carroll-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha,
Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, 
Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, 
Rockwell City, Manson, Lake City, Pomeroy, Denison, and Carroll
1043 AM CST Wed Dec 23 2020

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Blizzard conditions expected. Total snow accumulations of
  2 to 4 inches with the higher totals nearer the Iowa Minnesota
  border. Winds gusting to around 55 mph.

* WHERE...Northwest and Northern Iowa.

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

* IMPACTS...Snow and blowing snow will significantly reduce 
  visibility to near zero at times this afternoon and evening; 
  especially northwest and north.

* ADDITIONAL DETAILS...Dangerous travel may develop this 
  afternoon and this evening.

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.

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

&&

$$

IAZ017-025-026-035-036-046-047-057-058-070-240045-
/O.CON.KDMX.WW.Y.0023.201223T1800Z-201224T0600Z/
Cerro Gordo-Wright-Franklin-Webster-Hamilton-Greene-Boone-Audubon-
Guthrie-Cass-
Including the cities of Mason City, Clear Lake, Eagle Grove, 
Clarion, Belmond, Hampton, Fort Dodge, Webster City, Jefferson, 
Boone, Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, 
and Atlantic
1043 AM CST Wed Dec 23 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow expected. Total snow accumulations of up to around 2
  inches. Northwest winds gust to around 50 mph.

* WHERE...Portions of Western, Central and Northern Iowa.

* WHEN...From noon Wednesday to midnight CST Wednesday night.

* IMPACTS...Snow and blowing snow may significantly reduce 
  visibility at times this afternoon and evening and result in 
  hazardous travel.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

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

&&

$$

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

CURTIS
629 
WWUS43 KDMX 231954
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
154 PM CST Wed Dec 23 2020

...Impactful Winter Storm to Continue Blizzard Conditions and 
Strong Winds in the Region This Afternoon and Evening...

.A winter storm with strong northwest winds and light to moderate 
snowfall will continue to traverse the area today and tonight. 
Falling temperatures, inducing bitter cold conditions, will continue 
through tonight and into Thursday morning. The combination of 
falling snow and winds gusting in excess of 50 mph at times have 
created blizzard conditions across portions of northwest and 
northern Iowa this afternoon and are expected to continue and expand 
into the evening. Those with travel plans are strongly encouraged to 
plan accordingly and be prepared to alter or cancel plans if travel 
is being considered in portions of northwest or northern Iowa, much 
of Minnesota, or the eastern Dakotas.

IAZ017-025-035-240400-
/O.UPG.KDMX.WW.Y.0023.000000T0000Z-201224T0600Z/
/O.EXA.KDMX.BZ.W.0002.000000T0000Z-201224T0600Z/
Cerro Gordo-Wright-Webster-
Including the cities of Mason City, Clear Lake, Eagle Grove, 
Clarion, Belmond, and Fort Dodge
154 PM CST Wed Dec 23 2020

...BLIZZARD WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

* WHAT...Blizzard conditions expected. Total snow accumulations of
  2 to 4 inches with the higher totals closer to the Iowa 
  Minnesota border. Winds gusting to around 55 mph.

* WHERE...Northern Iowa.

* WHEN...Until midnight CST tonight.

* IMPACTS...Snow and blowing snow will significantly reduce
  visibility to near zero at times this afternoon and evening,
  resulting in very dangerous travel conditions.

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. 

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

&&

$$

IAZ004>007-015-016-023-024-033-034-044-045-240400-
/O.CON.KDMX.BZ.W.0002.000000T0000Z-201224T0600Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Pocahontas-
Humboldt-Sac-Calhoun-Crawford-Carroll-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha,
Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, 
Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, 
Rockwell City, Manson, Lake City, Pomeroy, Denison, and Carroll
154 PM CST Wed Dec 23 2020

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Blizzard conditions expected. Total snow accumulations of
  2 to 4 inches with the higher totals closer to the Iowa 
  Minnesota border. Winds gusting to around 55 mph.

* WHERE...Northwest and Northern Iowa.

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

* IMPACTS...Snow and blowing snow will significantly reduce
  visibility to near zero at times this afternoon and evening,
  resulting in very dangerous travel conditions.

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.

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

&&

$$

IAZ027-037-048-059-060-071-240400-
/O.EXA.KDMX.WW.Y.0023.000000T0000Z-201224T0600Z/
Butler-Hardin-Story-Dallas-Polk-Adair-
Including the cities of Parkersburg, Clarksville, Shell Rock, 
Greene, Aplington, Allison, Dumont, Iowa Falls, Eldora, Ackley, 
Ames, Perry, Waukee, Adel, Des Moines, Greenfield, Stuart, Adair,
and Fontanelle
154 PM CST Wed Dec 23 2020

...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

* WHAT...Light snowfall accumulations up to an inch. Northwest
  wind gusts to around 50 mph.

* WHERE...Central Iowa.

* WHEN...From noon Wednesday to midnight CST Wednesday night.

* IMPACTS...Falling snow and strong winds will combine to produce
  blowing snow and reduce visibilities to under a half mile at 
  times, resulting in hazardous travel conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

IAZ026-036-046-047-057-058-070-240400-
/O.CON.KDMX.WW.Y.0023.000000T0000Z-201224T0600Z/
Franklin-Hamilton-Greene-Boone-Audubon-Guthrie-Cass-
Including the cities of Hampton, Webster City, Jefferson, Boone, 
Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, 
and Atlantic
154 PM CST Wed Dec 23 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow expected. Total snow accumulations of up to around 
  2 inches. Northwest winds gust to around 50 mph.

* WHERE...Portions of Western, Central and Northern Iowa.

* WHEN...From noon Wednesday to midnight CST Wednesday night.

* IMPACTS...Falling snow and strong winds will combine to produce
  blowing snow and reduce visibilities to under a half mile at 
  times, resulting in hazardous travel conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

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

&&

$$

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

CURTIS
424 
WWUS43 KDMX 232305
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
505 PM CST Wed Dec 23 2020

...Winter Storm to Continue Blizzard Conditions and Strong Winds 
into this Evening...

.A winter storm with strong northwest winds and light to moderate
snowfall will continue to traverse the area into this evening. 
Falling temperatures, inducing bitter cold conditions, will 
continue through tonight and into Thursday morning. The 
combination of falling snow and winds gusting in excess of 50 mph 
at times have created blizzard conditions across portions of 
northwest and northern Iowa. Those with travel plans are strongly
encouraged to plan accordingly and be prepared to alter or cancel
plans if travel is being considered in portions of northwest or 
northern Iowa, much of Minnesota, or the eastern Dakotas.

IAZ004>007-015>017-023>025-033>035-044-045-240600-
/O.CON.KDMX.BZ.W.0002.000000T0000Z-201224T0600Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Sac-Calhoun-Webster-Crawford-Carroll-
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, Denison, and Carroll
505 PM CST Wed Dec 23 2020

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Blizzard conditions expected. Total snow accumulations of
  2 to 5 inches with the higher totals closer to the Iowa 
  Minnesota border. Winds gusting to around 55 mph.

* WHERE...Northern Iowa.

* WHEN...Until midnight CST tonight.

* IMPACTS...Snow and blowing snow will significantly reduce
  visibility to near zero at times resulting in extremely 
  dangerous travel conditions.


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. 

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

&&

$$

IAZ026-027-036-037-046>048-057>060-070-071-240600-
/O.CON.KDMX.WW.Y.0023.000000T0000Z-201224T0600Z/
Franklin-Butler-Hamilton-Hardin-Greene-Boone-Story-Audubon-
Guthrie-Dallas-Polk-Cass-Adair-
Including the cities of Hampton, Parkersburg, Clarksville, 
Shell Rock, Greene, Aplington, Allison, Dumont, Webster City, 
Iowa Falls, Eldora, Ackley, Jefferson, Boone, Ames, Audubon, 
Exira, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, 
Adel, Des Moines, Atlantic, Greenfield, Stuart, Adair, 
and Fontanelle
505 PM CST Wed Dec 23 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow expected. Total snow accumulations up to 2 inches. 
  Northwest winds gust to around 50 mph.

* WHERE...Portions of Western, Central and Northern Iowa.

* WHEN...Until midnight tonight.

* IMPACTS...Falling snow and strong winds will combine to 
  produce blowing snow and reduce visibilities to under a half 
  mile at times, resulting in hazardous travel conditions.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

For more information from the National Weather Service visit
https://weather.gov/desmoines
237 
WWUS43 KDMX 240229
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
829 PM CST Wed Dec 23 2020

...Blizzard Conditions and Strong Winds will continue this 
Evening...

.Snow is gradually ending from west to east as a winter storm 
continues to traverse the area. Falling temperatures, inducing 
bitter cold conditions, will continue through tonight and into 
Thursday morning. The combination of falling snow and winds 
gusting in excess of 50 mph at times have created blizzard 
conditions across portions of northwest and northern Iowa. Those 
with travel plans are strongly encouraged to plan accordingly and 
be prepared to alter or cancel plans if travel is being considered
in portions of northwest or northern Iowa, much of Minnesota, or 
the eastern Dakotas.

IAZ004>007-015>017-023>025-033>035-044-045-240600-
/O.CON.KDMX.BZ.W.0002.000000T0000Z-201224T0600Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Sac-Calhoun-Webster-Crawford-Carroll-
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, Denison, and Carroll
829 PM CST Wed Dec 23 2020

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Blizzard conditions expected. Total snow accumulations 
  of 2 to 5 inches with the higher totals closer to the Iowa 
  Minnesota border. Winds gusting to around 55 mph.

* WHERE...Northern Iowa.

* WHEN...Until midnight CST tonight.

* IMPACTS...Snow and blowing snow will significantly reduce 
  visibility to near zero at times resulting in extremely 
  dangerous travel conditions.

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. 

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

&&

$$

IAZ026-027-036-037-046>048-057>060-070-071-240600-
/O.CON.KDMX.WW.Y.0023.000000T0000Z-201224T0600Z/
Franklin-Butler-Hamilton-Hardin-Greene-Boone-Story-Audubon-
Guthrie-Dallas-Polk-Cass-Adair-
Including the cities of Hampton, Parkersburg, Clarksville, 
Shell Rock, Greene, Aplington, Allison, Dumont, Webster City, 
Iowa Falls, Eldora, Ackley, Jefferson, Boone, Ames, Audubon, 
Exira, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, 
Adel, Des Moines, Atlantic, Greenfield, Stuart, Adair, 
and Fontanelle
829 PM CST Wed Dec 23 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow expected. Total snow accumulations up to 2 inches.
  Northwest winds gust in excess of 50 mph.

* WHERE...Portions of Western, Central and Northern Iowa.

* WHEN...Until midnight tonight.

* IMPACTS...Falling snow and strong winds will combine to 
  produce blowing snow and reduce visibilities to under a half 
  mile at times, resulting in hazardous travel conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

For more information from the National Weather Service visit
https://weather.gov/desmoines
332 
WWUS43 KDMX 240459
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
1059 PM CST Wed Dec 23 2020

...Blizzard Conditions and Strong Winds will continue Tonight...

.Snow is gradually ending from west to east as a winter storm
continues to traverse the area. Falling temperatures, inducing
bitter cold conditions, will continue through tonight and into
Thursday morning. The combination of falling snow and winds
gusting in excess of 50 mph at times have created blizzard
conditions across portions of northwest and northern Iowa. Those
with travel plans are strongly encouraged to plan accordingly and
be prepared to alter or cancel plans if travel is being
considered in portions of northwest or northern Iowa, much of
Minnesota, or the eastern Dakotas.

IAZ004>007-015>017-023>025-033>035-044-045-240900-
/O.EXT.KDMX.BZ.W.0002.000000T0000Z-201224T0900Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Sac-Calhoun-Webster-Crawford-Carroll-
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, Denison, and Carroll
1059 PM CST Wed Dec 23 2020

...BLIZZARD WARNING NOW IN EFFECT UNTIL 3 AM CST THURSDAY...

* WHAT...Blizzard conditions expected. Total snow accumulations 
  of 2 to 5 inches with the higher totals closer to the Iowa 
  Minnesota border. Winds gusting to around 55 mph.

* WHERE...Northern Iowa.

* WHEN...Until 3 AM CST Thursday.

* IMPACTS...Snow and blowing snow will significantly reduce
  visibility to near zero at times resulting in extremely
  dangerous travel conditions that will be near impossible in some
  areas.

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. 

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

&&

$$

IAZ026-027-036-037-046>048-057>060-070-071-240900-
/O.EXT.KDMX.WW.Y.0023.000000T0000Z-201224T0900Z/
Franklin-Butler-Hamilton-Hardin-Greene-Boone-Story-Audubon-
Guthrie-Dallas-Polk-Cass-Adair-
Including the cities of Hampton, Parkersburg, Clarksville, 
Shell Rock, Greene, Aplington, Allison, Dumont, Webster City, 
Iowa Falls, Eldora, Ackley, Jefferson, Boone, Ames, Audubon, 
Exira, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, 
Adel, Des Moines, Atlantic, Greenfield, Stuart, Adair, 
and Fontanelle
1059 PM CST Wed Dec 23 2020

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 3 AM CST
THURSDAY...

* WHAT...Snow expected. Total snow accumulations up to 2 inches. 
  Northwest winds gust in excess of 50 mph.

* WHERE...Portions of Western, Central and Northern Iowa.

* WHEN...Until 3 AM CST Thursday.

* IMPACTS...Falling snow and strong winds will combine to 
  produce blowing snow and reduce visibilities to under a half 
  mile at times, resulting in hazardous travel conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

For more information from the National Weather Service visit
https://weather.gov/desmoines
174 
WWUS43 KDMX 240916
WSWDMX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Des Moines IA
316 AM CST Thu Dec 24 2020

...Blowing Snow Diminishing, but Bitterly Cold into Christmas...

.No additional snow is anticipated, but minor blowing snow will
continue this morning, especially in open areas. The primary 
weather story will turn to bitterly cold temperatures today
through Christmas morning. Temperatures across northern Iowa
should be no better than then single digits above zero, and down
into the single digits below zero at night.

IAZ004>007-015>017-023>025-033>035-241800-
/O.EXP.KDMX.BZ.W.0002.000000T0000Z-201224T0900Z/
/O.NEW.KDMX.WC.Y.0007.201224T0916Z-201224T1800Z/
/O.NEW.KDMX.WC.Y.0008.201225T0000Z-201225T1500Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Sac-Calhoun-Webster-
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, and Fort Dodge
316 AM CST Thu Dec 24 2020

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 9 AM
CST FRIDAY...
...BLIZZARD WARNING WILL EXPIRE AT 3 AM CST EARLY THIS MORNING...

* WHAT...Bitter cold wind chills expected this morning, and then
  again tonight into Christmas morning. Wind chills 20 to 30 
  below zero north.

* WHERE...Northern Iowa

* WHEN...For the first Wind Chill Advisory, until noon CST 
  today. For the second Wind Chill Advisory, from 6 PM this 
  evening to 9 AM CST Friday.

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

* ADDITIONAL DETAILS...Blizzard conditions and additional snowfall
  have ended, but some minor blowing snow may persist today,
  especially in rural, open areas. Some roads may remain slick and
  snow covered as well.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. Motorists are also advised to slow down, be
prepared for variable possibly hazardous road conditions, and plan
for extra travel time.

&&

$$

IAZ044-045-241030-
/O.EXP.KDMX.BZ.W.0002.000000T0000Z-201224T0900Z/
Crawford-Carroll-
Including the cities of Denison and Carroll
316 AM CST Thu Dec 24 2020

...BLIZZARD WARNING WILL EXPIRE AT 3 AM CST EARLY THIS MORNING...

Blizzard conditions have ended, with no additional snowfall
anticipated, however minor blowing snow may persist today,
especially in rural, open areas. Motorists are advised to slow 
down, be prepared for variable possibly hazardous road conditions,
and plan for extra travel time.

$$

IAZ026-027-036-037-241800-
/O.EXP.KDMX.WW.Y.0023.000000T0000Z-201224T0900Z/
/O.NEW.KDMX.WC.Y.0007.201224T0916Z-201224T1800Z/
/O.NEW.KDMX.WC.Y.0008.201225T0000Z-201225T1500Z/
Franklin-Butler-Hamilton-Hardin-
Including the cities of Hampton, Parkersburg, Clarksville, 
Shell Rock, Greene, Aplington, Allison, Dumont, Webster City, 
Iowa Falls, Eldora, and Ackley
316 AM CST Thu Dec 24 2020

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 9 AM
CST FRIDAY...
...WINTER WEATHER ADVISORY WILL EXPIRE AT 3 AM CST EARLY THIS
MORNING...

* WHAT...Bitter cold wind chills expected this morning, and then
  again tonight into Christmas morning. Wind chills 15 to 25 
  below zero.

* WHERE...Northern Iowa

* WHEN...For the first Wind Chill Advisory, until noon CST 
  today. For the second Wind Chill Advisory, from 6 PM this 
  evening to 9 AM CST Friday.

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

* ADDITIONAL DETAILS...Additional snowfall has ended, but some 
  minor blowing snow may persist today, especially in rural, open 
  areas. Some roads may remain slick and snow covered as well.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. Motorists are advised to slow down as needed, be
prepared for variable possibly hazardous road conditions, and 
plan for extra travel time.

&&

$$

IAZ046>048-057>060-070-071-241030-
/O.EXP.KDMX.WW.Y.0023.000000T0000Z-201224T0900Z/
Greene-Boone-Story-Audubon-Guthrie-Dallas-Polk-Cass-Adair-
Including the cities of Jefferson, Boone, Ames, Audubon, Exira, 
Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, 
Des Moines, Atlantic, Greenfield, Stuart, Adair, and Fontanelle
316 AM CST Thu Dec 24 2020

...WINTER WEATHER ADVISORY WILL EXPIRE AT 3 AM CST EARLY THIS
MORNING...

Blowing snow conditions have diminished, with no additional 
snowfall anticipated, however minor blowing snow may persist 
today, especially in rural, open areas. Motorists are advised to 
slow down, be prepared for variable possibly hazardous road 
conditions, and plan for extra travel time.

$$

IAZ028-038-241800-
/O.NEW.KDMX.WC.Y.0007.201224T0916Z-201224T1800Z/
/O.NEW.KDMX.WC.Y.0008.201225T0000Z-201225T1500Z/
Bremer-Grundy-
Including the cities of Waverly, Grundy Center, Reinbeck, Conrad,
Dike, and Wellsburg
316 AM CST Thu Dec 24 2020

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...Bitter cold temperatures and wind chills. Wind chills as
  low as 20 below zero.

* WHERE...Portions of northeast Iowa.

* WHEN...For the first Wind Chill Advisory, until noon CST 
  today. For the second Wind Chill Advisory, from 6 PM this 
  evening to 9 AM CST Friday.

* 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

Small

Nearby

Blizzard Warnings in Iowa, 2020Every blizzard warning in 2020

Sources

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