Alert archive / Iowa / Wind Advisories in 2021
Wind Advisory 9, NWS Des Moines, IA
NWS Des Moines, IA issued this wind advisory at Dec 5, 2021, 2:43 AM CST for 39 counties in Iowa. It took effect at Dec 5, 2021, 6:00 PM CST. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Dec 5, 2021, 2:43 AM CST (08:43 UTC)
- In effect from
- Dec 5, 2021, 6:00 PM CST
- Expired
- Dec 6, 2021, 9:00 AM CST
- In force
- 15 hr
- Issued by
- NWS Des Moines, IA
All 39 counties
Adair 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, Crawford County, IA, Dallas County, IA, Emmet 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, Kossuth County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Palo Alto County, IA, Pocahontas County, IA, Polk County, IA, Poweshiek County, IA, Sac County, IA, Story County, IA, Tama County, IA, Warren County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 59 km from the middle of the area, began a volume at 08:45 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, 8.7 hours before the alert went out and 239 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2157 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 230 m²/s²
- 0-3 km storm-relative helicity
- 616 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
277 WWUS73 KDMX 050843 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 243 AM CST Sun Dec 5 2021 IAZ004>007-015>017-023>028-033>039-044>050-051645- /O.NEW.KDMX.WI.Y.0009.211206T0000Z-211206T1300Z/ 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- 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, 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, and Gladbrook 243 AM CST Sun Dec 5 2021 ...WIND ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 7 AM CST MONDAY... * WHAT...Northwest winds 20 to 30 mph with gusts of 40 to 50 mph expected. * WHERE...Portions of central into north central Iowa. * WHEN...From 6 PM this evening to 7 AM CST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
6 follow-up statements
125 WWUS73 KDMX 051527 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 927 AM CST Sun Dec 5 2021 IAZ057>059-070-071-052330- /O.EXA.KDMX.WI.Y.0009.211206T0000Z-211206T1300Z/ Audubon-Guthrie-Dallas-Cass-Adair- Including the cities of Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, Atlantic, Greenfield, Stuart, Adair, and Fontanelle 927 AM CST Sun Dec 5 2021 ...WIND ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 7 AM CST MONDAY... * WHAT...Northwest winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Southwest Iowa. * WHEN...From 6 PM this evening to 7 AM CST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Be sure to secure any loose holiday lights and decorations. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ IAZ004>007-015>017-023>028-033>039-044>050-052330- /O.CON.KDMX.WI.Y.0009.211206T0000Z-211206T1300Z/ 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- 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, 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, and Gladbrook 927 AM CST Sun Dec 5 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 7 AM CST MONDAY... * WHAT...Northwest winds 20 to 30 mph with gusts of 40 to 50 mph expected. * WHERE...Portions of central into north central Iowa. * WHEN...From 6 PM this evening to 7 AM CST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Be sure to secure any loose holiday lights and decorations. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Podrazik For more information from the National Weather Service visit https://weather.gov/desmoines
288 WWUS73 KDMX 052030 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 230 PM CST Sun Dec 5 2021 IAZ060>062-072>075-060430- /O.EXB.KDMX.WI.Y.0009.211206T0300Z-211206T1300Z/ Polk-Jasper-Poweshiek-Madison-Warren-Marion-Mahaska- Including the cities of Des Moines, Newton, Grinnell, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, and Oskaloosa 230 PM CST Sun Dec 5 2021 ...WIND ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 7 AM CST MONDAY... * WHAT...Northwest winds 20 to 25 mph with gusts up to 45 mph expected. * WHERE...South central to southeast Iowa. * WHEN...From 9 PM this evening to 7 AM CST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Be sure to secure any loose holiday lights and decorations. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ IAZ004>007-015>017-023>028-033>039-044>050-057>059-070-071-060430- /O.CON.KDMX.WI.Y.0009.211206T0000Z-211206T1300Z/ 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-Audubon-Guthrie-Dallas-Cass-Adair- 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, 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, Atlantic, Greenfield, Stuart, Adair, and Fontanelle 230 PM CST Sun Dec 5 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 7 AM CST MONDAY... * WHAT...Northwest winds 20 to 30 mph with gusts of 40 to 50 mph expected. * WHERE...Portions of central into north central Iowa. * WHEN...From 6 PM this evening to 7 AM CST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Be sure to secure any loose holiday lights and decorations. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
708 WWUS73 KDMX 060308 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 908 PM CST Sun Dec 5 2021 IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-061100- /O.CON.KDMX.WI.Y.0009.000000T0000Z-211206T1300Z/ 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-Audubon-Guthrie-Dallas-Polk-Jasper- Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska- 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, 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, Grinnell, Atlantic, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, and Oskaloosa 908 PM CST Sun Dec 5 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 AM CST MONDAY... * WHAT...Northwest winds 20 to 30 mph with gusts of 40 to 50 mph expected. * WHERE...Much of central and northern Iowa. * WHEN...Through 7 AM CST Monday. * IMPACTS...Gusty winds could blow around unsecured objects, including holiday decorations. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects such as lightweight or loose holiday decorations. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines BSS
795 WWUS73 KDMX 060900 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 300 AM CST Mon Dec 6 2021 IAZ004>006-015-016-023>025-033>036-044>048-057>060-070>073-061200- /O.EXT.KDMX.WI.Y.0009.000000T0000Z-211206T1200Z/ Emmet-Kossuth-Winnebago-Palo Alto-Hancock-Pocahontas-Humboldt- Wright-Sac-Calhoun-Webster-Hamilton-Crawford-Carroll-Greene-Boone- Story-Audubon-Guthrie-Dallas-Polk-Cass-Adair-Madison-Warren- Including the cities of Estherville, Algona, Forest City, Lake Mills, Emmetsburg, Garner, Britt, Kanawha, 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, Ames, Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, Des Moines, Atlantic, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Indianola, Norwalk, and Carlisle 300 AM CST Mon Dec 6 2021 ...WIND ADVISORY NOW IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING... * WHAT...Northwest winds 20 to 30 mph with gusts of 40 to 50 mph expected. * WHERE...Much of central and northern Iowa. * WHEN...Until 6 AM CST early this morning. * IMPACTS...Gusty winds could blow around unsecured objects, including holiday decorations. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ IAZ007-017-026>028-037>039-049-050-061-062-074-075-061500- /O.EXT.KDMX.WI.Y.0009.000000T0000Z-211206T1500Z/ Worth-Cerro Gordo-Franklin-Butler-Bremer-Hardin-Grundy-Black Hawk- Marshall-Tama-Jasper-Poweshiek-Marion-Mahaska- Including the cities of Northwood, Manly, Mason City, Clear Lake, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Newton, Grinnell, Pella, Knoxville, and Oskaloosa 300 AM CST Mon Dec 6 2021 ...WIND ADVISORY NOW IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Northwest winds 20 to 30 mph with gusts of 40 to 50 mph expected. * WHERE...Much of central and northern Iowa. * WHEN...Until 9 AM CST this morning. * IMPACTS...Gusty winds could blow around unsecured objects, including holiday decorations. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
216 WWUS73 KDMX 061153 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 553 AM CST Mon Dec 6 2021 IAZ004>006-015-016-023>025-033>036-044>048-057>060-070>073-061300- /O.EXP.KDMX.WI.Y.0009.000000T0000Z-211206T1200Z/ Emmet-Kossuth-Winnebago-Palo Alto-Hancock-Pocahontas-Humboldt- Wright-Sac-Calhoun-Webster-Hamilton-Crawford-Carroll-Greene-Boone- Story-Audubon-Guthrie-Dallas-Polk-Cass-Adair-Madison-Warren- Including the cities of Estherville, Algona, Forest City, Lake Mills, Emmetsburg, Garner, Britt, Kanawha, 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, Ames, Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, Des Moines, Atlantic, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Indianola, Norwalk, and Carlisle 553 AM CST Mon Dec 6 2021 ...WIND ADVISORY WILL EXPIRE AT 6 AM CST EARLY THIS MORNING... Gusty winds of 30 to 40 mph will continue through the morning hours. However, widespread advisory level winds are no longer expected and thus the advisory will expire. $$ IAZ007-017-026>028-037>039-049-050-061-062-074-075-061500- /O.CON.KDMX.WI.Y.0009.000000T0000Z-211206T1500Z/ Worth-Cerro Gordo-Franklin-Butler-Bremer-Hardin-Grundy-Black Hawk- Marshall-Tama-Jasper-Poweshiek-Marion-Mahaska- Including the cities of Northwood, Manly, Mason City, Clear Lake, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Newton, Grinnell, Pella, Knoxville, and Oskaloosa 553 AM CST Mon Dec 6 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Northwest winds 20 to 30 mph with gusts of 40 to 50 mph expected. * WHERE...Portions of central and northern Iowa. * WHEN...Until 9 AM CST this morning. * IMPACTS...Gusty winds could blow around unsecured objects, including holiday decorations. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
452 WWUS73 KDMX 061506 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 906 AM CST Mon Dec 6 2021 IAZ007-017-026>028-037>039-049-050-061-062-074-075-061615- /O.EXP.KDMX.WI.Y.0009.000000T0000Z-211206T1500Z/ Worth-Cerro Gordo-Franklin-Butler-Bremer-Hardin-Grundy-Black Hawk- Marshall-Tama-Jasper-Poweshiek-Marion-Mahaska- Including the cities of Northwood, Manly, Mason City, Clear Lake, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Newton, Grinnell, Pella, Knoxville, and Oskaloosa 906 AM CST Mon Dec 6 2021 ...WIND ADVISORY HAS EXPIRED... Conditions will remain breezy today as northwest winds continue, however wind gusts over 45 mph are expected to be very limited for the remainder of the day. $$ For more information from the National Weather Service visit https://weather.gov/desmoines
Nearby
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.