Alert archive / Iowa / High Wind Watches in 2021

High Wind Watch 1, NWS Des Moines, IA

December 13, 202146 counties in Iowa

NWS Des Moines, IA issued this high wind watch at Dec 13, 2021, 3:40 AM CST for 46 counties in Iowa. It took effect at Dec 15, 2021, 12:00 PM CST. It was in force for .

The area

The counties it named.

The facts

Issued
Dec 13, 2021, 3:40 AM CST (09:40 UTC)
In effect from
Dec 15, 2021, 12:00 PM CST
Expired
Dec 14, 2021, 4:09 AM CST
In force
Issued by
NWS Des Moines, IA
All 46 counties

Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Black Hawk County, IA, Boone County, IA, Bremer County, IA, Butler County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Cerro Gordo County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Franklin County, IA, Greene County, IA, Grundy County, IA, Guthrie County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Humboldt County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Monroe County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Sac County, IA, Story County, IA, Tama County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA, Webster County, IA, Worth County, IA, Wright County, IA

The radar

The Des Moines radar (KDMX), 10 km from the middle of the area, began a volume at 09:39 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

Omaha, NE (KOAX), launched 00:00Z, 9.7 hours before the alert went out and 232 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 00:00Z on 2021-12-13Temperature 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, Omaha, NE at 00:00Z on 2021-12-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 241 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
3043 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
241 m²/s²
0-3 km storm-relative helicity
290 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

672 
WWUS73 KDMX 130940
NPWDMX

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
340 AM CST Mon Dec 13 2021

IAZ007-016-017-024>028-033>039-044>050-057>061-070>074-081>084-
092>095-131800-
/O.NEW.KDMX.HW.A.0001.211215T1800Z-211216T0600Z/
Worth-Hancock-Cerro Gordo-Humboldt-Wright-Franklin-Butler-Bremer-
Sac-Calhoun-Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-
Carroll-Greene-Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-
Polk-Jasper-Cass-Adair-Madison-Warren-Marion-Adams-Union-Clarke-
Lucas-Taylor-Ringgold-Decatur-Wayne-
Including the cities of Northwood, Manly, Garner, Britt, Kanawha,
Mason City, Clear Lake, Humboldt, Eagle Grove, Clarion, Belmond, 
Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington,
Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, 
Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, 
Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, 
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, Atlantic, Greenfield, Stuart, Adair, 
Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, 
Pella, Knoxville, Corning, Creston, Osceola, Chariton, Bedford, 
Lenox, New Market, Mount Ayr, Lamoni, Leon, Corydon, Seymour, 
Allerton, and Humeston
340 AM CST Mon Dec 13 2021

...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
WEDNESDAY EVENING...

* WHAT...Southwest winds 25 to 35 mph with gusts to 55 to 65 mph 
  possible.

* WHERE...Much of central Iowa.

* WHEN...From Wednesday afternoon through Wednesday evening.

* IMPACTS...Damaging winds could blow down trees and power lines.
  Widespread power outages are possible. Travel could be
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/desmoines
4 follow-up statements
511 
WWUS73 KDMX 131657
NPWDMX

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
1057 AM CST Mon Dec 13 2021

IAZ007-016-017-024>028-033>039-044>050-057>061-070>074-081>084-
092>095-140100-
/O.CON.KDMX.HW.A.0001.211215T1800Z-211216T0600Z/
Worth-Hancock-Cerro Gordo-Humboldt-Wright-Franklin-Butler-Bremer-
Sac-Calhoun-Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-
Carroll-Greene-Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-
Polk-Jasper-Cass-Adair-Madison-Warren-Marion-Adams-Union-Clarke-
Lucas-Taylor-Ringgold-Decatur-Wayne-
Including the cities of Northwood, Manly, Garner, Britt, Kanawha,
Mason City, Clear Lake, Humboldt, Eagle Grove, Clarion, Belmond, 
Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington,
Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, 
Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, 
Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, 
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, Atlantic, Greenfield, Stuart, Adair, 
Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, 
Pella, Knoxville, Corning, Creston, Osceola, Chariton, Bedford, 
Lenox, New Market, Mount Ayr, Lamoni, Leon, Corydon, Seymour, 
Allerton, and Humeston
1057 AM CST Mon Dec 13 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING...

* WHAT...Southwest winds 25 to 35 mph with gusts to 55 to 65 mph 
  possible.

* WHERE...Much of central Iowa.

* WHEN...From Wednesday afternoon through Wednesday evening.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/desmoines
988 
WWUS73 KDMX 132032
NPWDMX

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
232 PM CST Mon Dec 13 2021

IAZ062-075-085-086-096-097-140445-
/O.EXB.KDMX.HW.A.0001.211215T2100Z-211216T0900Z/
Poweshiek-Mahaska-Monroe-Wapello-Appanoose-Davis-
Including the cities of Grinnell, Oskaloosa, Albia, Ottumwa, 
Centerville, and Bloomfield
232 PM CST Mon Dec 13 2021

...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...

* WHAT...Southwest winds 25 to 40 mph with gusts up to 55 to 65 
  mph possible.

* WHERE...Portions of Central and Southeast Iowa

* WHEN...From Wednesday afternoon through late Wednesday night.

* IMPACTS...Damaging winds could blow down trees and power lines.
  Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

IAZ007-017-026>028-038-039-049-050-061-074-140445-
/O.EXT.KDMX.HW.A.0001.211215T1800Z-211216T0900Z/
Worth-Cerro Gordo-Franklin-Butler-Bremer-Grundy-Black Hawk-
Marshall-Tama-Jasper-Marion-
Including the cities of Northwood, Manly, Mason City, Clear Lake,
Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington,
Allison, Dumont, Waverly, Grundy Center, Reinbeck, Conrad, Dike, 
Wellsburg, Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, 
Traer, Dysart, Gladbrook, Newton, Pella, and Knoxville
232 PM CST Mon Dec 13 2021

...HIGH WIND WATCH NOW IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...

* WHAT...Southwest winds 25 to 40 mph with gusts to 55 to 70 mph 
  possible.

* WHERE...Much of central Iowa.

* WHEN...From Wednesday afternoon through late Wednesday night.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

IAZ016-024-025-033>037-044>048-057>060-070>073-081>084-092>095-
140445-
/O.CON.KDMX.HW.A.0001.211215T1800Z-211216T0600Z/
Hancock-Humboldt-Wright-Sac-Calhoun-Webster-Hamilton-Hardin-
Crawford-Carroll-Greene-Boone-Story-Audubon-Guthrie-Dallas-Polk-
Cass-Adair-Madison-Warren-Adams-Union-Clarke-Lucas-Taylor-
Ringgold-Decatur-Wayne-
Including the cities of Garner, Britt, Kanawha, Humboldt, 
Eagle Grove, Clarion, Belmond, 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, 
Des Moines, Atlantic, Greenfield, Stuart, Adair, Fontanelle, 
Winterset, Earlham, Indianola, Norwalk, Carlisle, Corning, 
Creston, Osceola, Chariton, Bedford, Lenox, New Market, 
Mount Ayr, Lamoni, Leon, Corydon, Seymour, Allerton, and Humeston
232 PM CST Mon Dec 13 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING...

* WHAT...Southwest winds 25 to 40 mph with gusts to 55 to 70 mph 
  possible.

* WHERE...Much of central Iowa.

* WHEN...From Wednesday afternoon through Wednesday evening.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/desmoines
253 
WWUS73 KDMX 140305
NPWDMX

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
905 PM CST Mon Dec 13 2021

IAZ016-024-025-033>037-044>048-057>060-070>073-081>084-092>095-
141115-
/O.CON.KDMX.HW.A.0001.211215T1800Z-211216T0600Z/
Hancock-Humboldt-Wright-Sac-Calhoun-Webster-Hamilton-Hardin-
Crawford-Carroll-Greene-Boone-Story-Audubon-Guthrie-Dallas-Polk-
Cass-Adair-Madison-Warren-Adams-Union-Clarke-Lucas-Taylor-
Ringgold-Decatur-Wayne-
Including the cities of Garner, Britt, Kanawha, Humboldt, 
Eagle Grove, Clarion, Belmond, 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, 
Des Moines, Atlantic, Greenfield, Stuart, Adair, Fontanelle, 
Winterset, Earlham, Indianola, Norwalk, Carlisle, Corning, 
Creston, Osceola, Chariton, Bedford, Lenox, New Market, 
Mount Ayr, Lamoni, Leon, Corydon, Seymour, Allerton, and Humeston
905 PM CST Mon Dec 13 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING...

* WHAT...Southwest winds 25 to 40 mph with gusts to 55 to 70 mph 
  possible.

* WHERE...Much of central Iowa.

* WHEN...From Wednesday afternoon through Wednesday evening.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

IAZ007-017-026>028-038-039-049-050-061-074-141115-
/O.CON.KDMX.HW.A.0001.211215T1800Z-211216T0900Z/
Worth-Cerro Gordo-Franklin-Butler-Bremer-Grundy-Black Hawk-
Marshall-Tama-Jasper-Marion-
Including the cities of Northwood, Manly, Mason City, Clear Lake,
Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington,
Allison, Dumont, Waverly, Grundy Center, Reinbeck, Conrad, Dike, 
Wellsburg, Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, 
Traer, Dysart, Gladbrook, Newton, Pella, and Knoxville
905 PM CST Mon Dec 13 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH LATE WEDNESDAY NIGHT...

* WHAT...Southwest winds 25 to 40 mph with gusts to 55 to 70 mph 
  possible.

* WHERE...Much of central Iowa.

* WHEN...From Wednesday afternoon through late Wednesday night.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

IAZ062-075-085-086-096-097-141115-
/O.CON.KDMX.HW.A.0001.211215T2100Z-211216T0900Z/
Poweshiek-Mahaska-Monroe-Wapello-Appanoose-Davis-
Including the cities of Grinnell, Oskaloosa, Albia, Ottumwa, 
Centerville, and Bloomfield
905 PM CST Mon Dec 13 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH LATE WEDNESDAY NIGHT...

* WHAT...Southwest winds 25 to 40 mph with gusts up to 55 to 65 
  mph possible.

* WHERE...Portions of Central and Southeast Iowa.

* WHEN...From Wednesday afternoon through late Wednesday night.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/desmoines
030 
WWUS73 KDMX 141009
NPWDMX

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
409 AM CST Tue Dec 14 2021

IAZ024-025-033>037-044>048-057>060-070>073-081>084-092>095-141815-
/O.UPG.KDMX.HW.A.0001.211215T1800Z-211216T0600Z/
/O.NEW.KDMX.HW.W.0002.211215T1800Z-211216T0600Z/
Humboldt-Wright-Sac-Calhoun-Webster-Hamilton-Hardin-Crawford-
Carroll-Greene-Boone-Story-Audubon-Guthrie-Dallas-Polk-Cass-Adair-
Madison-Warren-Adams-Union-Clarke-Lucas-Taylor-Ringgold-Decatur-
Wayne-
Including the cities of Humboldt, Eagle Grove, Clarion, Belmond, 
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, Des Moines, Atlantic, 
Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, 
Indianola, Norwalk, Carlisle, Corning, Creston, Osceola, 
Chariton, Bedford, Lenox, New Market, Mount Ayr, Lamoni, Leon, 
Corydon, Seymour, Allerton, and Humeston
409 AM CST Tue Dec 14 2021

...HIGH WIND WARNING IN EFFECT FROM NOON WEDNESDAY TO MIDNIGHT
CST WEDNESDAY NIGHT...

* WHAT...West to Southwest 30 to 40 mph with gusts of 60 to 70 
  mph expected.

* WHERE...Much of Iowa.

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

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IAZ075-085-086-096-097-141815-
/O.UPG.KDMX.HW.A.0001.211215T2100Z-211216T0900Z/
/O.NEW.KDMX.HW.W.0002.211215T1800Z-211216T0600Z/
Mahaska-Monroe-Wapello-Appanoose-Davis-
Including the cities of Oskaloosa, Albia, Ottumwa, Centerville, 
and Bloomfield
409 AM CST Tue Dec 14 2021

...HIGH WIND WARNING IN EFFECT FROM NOON WEDNESDAY TO MIDNIGHT
CST WEDNESDAY NIGHT...

* WHAT...Southwest winds 25 to 40 mph with gusts over 60 mph 
  expected.

* WHERE...Much of Iowa.

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

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are expected. Travel will be difficult,
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IAZ049-061-074-141815-
/O.UPG.KDMX.HW.A.0001.211215T1800Z-211216T0900Z/
/O.NEW.KDMX.HW.W.0002.211215T1800Z-211216T0600Z/
Marshall-Jasper-Marion-
Including the cities of Marshalltown, Newton, Pella, 
and Knoxville
409 AM CST Tue Dec 14 2021

...HIGH WIND WARNING IN EFFECT FROM NOON WEDNESDAY TO MIDNIGHT
CST WEDNESDAY NIGHT...

* WHAT...Southwest winds 25 to 40 mph with gusts over 60 mph 
  expected.

* WHERE...Much of Iowa.

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

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are expected. Travel will be difficult,
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IAZ007-017-026>028-038-039-050-141815-
/O.UPG.KDMX.HW.A.0001.211215T1800Z-211216T0900Z/
/O.NEW.KDMX.HW.W.0002.211215T2100Z-211216T0900Z/
Worth-Cerro Gordo-Franklin-Butler-Bremer-Grundy-Black Hawk-Tama-
Including the cities of Northwood, Manly, Mason City, Clear Lake,
Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington,
Allison, Dumont, Waverly, Grundy Center, Reinbeck, Conrad, Dike, 
Wellsburg, Waterloo, Cedar Falls, Tama, Toledo, Traer, Dysart, 
and Gladbrook
409 AM CST Tue Dec 14 2021

...HIGH WIND WARNING IN EFFECT FROM 3 PM WEDNESDAY TO 3 AM CST
THURSDAY...

* WHAT...Southwest winds 25 to 40 mph with gusts over 60 mph 
  expected.

* WHERE...Much of Iowa.

* WHEN...From 3 PM Wednesday to 3 AM CST Thursday.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are expected. Travel will be difficult,
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IAZ016-141815-
/O.UPG.KDMX.HW.A.0001.211215T1800Z-211216T0600Z/
/O.NEW.KDMX.HW.W.0002.211215T2100Z-211216T0900Z/
Hancock-
Including the cities of Garner, Britt, and Kanawha
409 AM CST Tue Dec 14 2021

...HIGH WIND WARNING IN EFFECT FROM 3 PM WEDNESDAY TO 3 AM CST
THURSDAY...

* WHAT...Southwest winds 25 to 40 mph with gusts over 60 mph 
  expected.

* WHERE...Much of Iowa.

* WHEN...From 3 PM Wednesday to 3 AM CST Thursday.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are expected. Travel will be difficult,
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IAZ062-141815-
/O.UPG.KDMX.HW.A.0001.211215T2100Z-211216T0900Z/
/O.NEW.KDMX.HW.W.0002.211215T2100Z-211216T0900Z/
Poweshiek-
Including the city of Grinnell
409 AM CST Tue Dec 14 2021

...HIGH WIND WARNING IN EFFECT FROM 3 PM WEDNESDAY TO 3 AM CST
THURSDAY...

* WHAT...Southwest winds 25 to 40 mph with gusts over 60 mph 
  expected.

* WHERE...Much of Iowa.

* WHEN...From 3 PM Wednesday to 3 AM CST Thursday.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are expected. Travel will be difficult,
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IAZ023-141815-
/O.NEW.KDMX.HW.W.0002.211215T1800Z-211216T0600Z/
Pocahontas-
Including the cities of Pocahontas, Laurens, Rolfe, Fonda, 
and Gilmore City
409 AM CST Tue Dec 14 2021

...HIGH WIND WARNING IN EFFECT FROM NOON WEDNESDAY TO MIDNIGHT
CST WEDNESDAY NIGHT...

* WHAT...Southwest winds 25 to 40 mph with gusts over 60 mph 
  expected.

* WHERE...Much of Iowa.

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

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IAZ004>006-015-141815-
/O.NEW.KDMX.HW.W.0002.211215T2100Z-211216T0900Z/
Emmet-Kossuth-Winnebago-Palo Alto-
Including the cities of Estherville, Algona, Forest City, 
Lake Mills, and Emmetsburg
409 AM CST Tue Dec 14 2021

...HIGH WIND WARNING IN EFFECT FROM 3 PM WEDNESDAY TO 3 AM CST
THURSDAY...

* WHAT...Southwest winds 25 to 40 mph with gusts over 60 mph 
  expected.

* WHERE...Much of Iowa.

* WHEN...From 3 PM Wednesday to 3 AM CST Thursday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

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

Nearby

High Wind Watches in Iowa, 2021Every high wind watch in 2021

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.