Alert archive / Iowa / Winter Storm Warnings in 2021
Winter Storm Warning 6, NWS Des Moines, IA
NWS Des Moines, IA issued this winter storm warning at Dec 9, 2021, 11:44 AM CST for 8 counties in Iowa. It took effect at Dec 10, 2021, 9:00 AM CST. It was in force for 21 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 9, 2021, 11:44 AM CST (17:44 UTC)
- In effect from
- Dec 10, 2021, 9:00 AM CST
- Expired
- Dec 11, 2021, 6:00 AM CST
- In force
- 21 hr
- Issued by
- NWS Des Moines, IA
Counties Cerro Gordo County, IA, Emmet County, IA, Hancock County, IA, Kossuth County, IA, Palo Alto County, IA, Pocahontas County, IA, Winnebago County, IA, Worth County, IA
The radar
The Des Moines radar (KDMX), 161 km from the middle of the area, began a volume at 17:49 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 11, 12:21 AM CST | SNOW 3 | Mason City, IA |
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 12:00Z, 5.7 hours before the alert went out and 191 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
- 1096 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 621 m²/s²
- 0-3 km storm-relative helicity
- 634 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
606 WWUS43 KDMX 091744 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 1144 AM CST Thu Dec 9 2021 ...First Winter Storm of The Season Arrives Friday... A winter storm with moderate to heavy snowfall, along with blowing and drifting snow, is expected Friday into Friday Night. Hazardous travel is expected over north central Iowa beginning later Friday morning or early afternoon due to snow and blowing snow. The snow may be heavy at times with rates approaching 1 inch per hour. Travel concerns extend further south toward the Highway 20 corridor where several inches of snow and perhaps a light glazing of ice are possible beginning Friday afternoon. Those with travel interests through northern and central Iowa should monitor later forecasts for updates as an expansion of the advisory and warning areas remains possible. IAZ004>007-015>017-023-100145- /O.UPG.KDMX.WS.A.0006.211210T1800Z-211211T1200Z/ /O.NEW.KDMX.WS.W.0006.211210T1500Z-211211T1200Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, and Gilmore City 1144 AM CST Thu Dec 9 2021 ...WINTER STORM WARNING IN EFFECT FROM 9 AM FRIDAY TO 6 AM CST SATURDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 9 inches. Higher amounts possible in Emmet County. * WHERE...North central Iowa. * WHEN...From 9 AM Friday to 6 AM CST Saturday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ024-100145- /O.UPG.KDMX.WS.A.0006.211210T1800Z-211211T1200Z/ /O.NEW.KDMX.WW.Y.0016.211210T1800Z-211211T1200Z/ Humboldt- Including the city of Humboldt 1144 AM CST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON FRIDAY TO 6 AM CST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 5 inches. A light glaze of ice also possible. * WHERE...Portions of west central into north central Iowa. * WHEN...From noon Friday to 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ025-026-033>036-044-045-100145- /O.NEW.KDMX.WW.Y.0016.211210T1800Z-211211T1200Z/ Wright-Franklin-Sac-Calhoun-Webster-Hamilton-Crawford-Carroll- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Denison, and Carroll 1144 AM CST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON FRIDAY TO 6 AM CST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 5 inches. A light glaze of ice also possible. * WHERE...Portions of west central into north central Iowa. * WHEN...From noon Friday to 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. 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
9 follow-up statements
860 WWUS43 KDMX 091944 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 144 PM CST Thu Dec 9 2021 ...First Winter Storm of The Season Arrives Friday... A winter storm with moderate to heavy snowfall, along with blowing and drifting snow, is expected Friday into Friday Night. Hazardous travel is expected over north central Iowa beginning later Friday morning or early afternoon due to snow and blowing snow. The snow may be heavy at times with rates approaching 1 inch per hour. Travel concerns extend further south toward the Highway 20 corridor where several inches of snow and perhaps a light glazing of ice are possible beginning Friday afternoon. Those with travel interests through northern and central Iowa should monitor later forecasts for updates as an expansion of the advisory and warning areas remains possible. IAZ004>007-015>017-023-100345- /O.CON.KDMX.WS.W.0006.211210T1500Z-211211T1200Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, and Gilmore City 144 PM CST Thu Dec 9 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM FRIDAY TO 6 AM CST SATURDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 9 inches. Higher amounts possible in Emmet County. * WHERE...North central Iowa. * WHEN...From 9 AM Friday to 6 AM CST Saturday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ027-028-037-038-100345- /O.EXA.KDMX.WW.Y.0016.211210T1800Z-211211T1200Z/ Butler-Bremer-Hardin-Grundy- Including the cities of Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, and Wellsburg 144 PM CST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON FRIDAY TO 6 AM CST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 5 inches. A light glaze of ice also possible. * WHERE...Portions of north central Iowa. * WHEN...From noon Friday to 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. 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. && $$ IAZ024>026-033>036-044-045-100345- /O.CON.KDMX.WW.Y.0016.211210T1800Z-211211T1200Z/ Humboldt-Wright-Franklin-Sac-Calhoun-Webster-Hamilton-Crawford- Carroll- Including the cities of Humboldt, Eagle Grove, Clarion, Belmond, Hampton, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Denison, and Carroll 144 PM CST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO 6 AM CST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 5 inches. A light glaze of ice also possible. * WHERE...Portions of west central into north central Iowa. * WHEN...From noon Friday to 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
029 WWUS43 KDMX 100244 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 844 PM CST Thu Dec 9 2021 ...First Winter Storm of The Season Arrives Friday... A winter storm with moderate to heavy snowfall, along with blowing and drifting snow, is expected Friday into Friday Night. Hazardous travel is expected over north central Iowa beginning later Friday morning or early afternoon due to snow and blowing snow. The snow may be heavy at times with rates approaching 1 inch per hour. Travel concerns extend further south toward the Highway 20 corridor where several inches of snow and perhaps a light glazing of ice are possible beginning Friday afternoon. Those with travel interests through northern and central Iowa should monitor later forecasts for updates as an expansion of the advisory and warning areas remains possible. IAZ004>007-015>017-023-101045- /O.CON.KDMX.WS.W.0006.211210T1500Z-211211T1200Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, and Gilmore City 844 PM CST Thu Dec 9 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM FRIDAY TO 6 AM CST SATURDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 9 inches. Higher amounts possible in Emmet County. * WHERE...North central Iowa. * WHEN...From 9 AM Friday to 6 AM CST Saturday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ024>028-033>038-044-045-101045- /O.CON.KDMX.WW.Y.0016.211210T1800Z-211211T1200Z/ Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster- Hamilton-Hardin-Grundy-Crawford-Carroll- Including the cities of Humboldt, Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Denison, and Carroll 844 PM CST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO 6 AM CST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 5 inches. A light glaze of ice also possible. * WHERE...Portions of west central into north central Iowa. * WHEN...From noon Friday to 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
911 WWUS43 KDMX 100926 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 326 AM CST Fri Dec 10 2021 ...Moderate to Heavy Snow and Blowing Snow across Northern Iowa Later Today through Tonight... .A winter storm with moderate to heavy snowfall, along with blowing and drifting snow, is expected to spread from the Siouxland area across northern Iowa later today and continue into tonight. Farther south toward the Highway 30 corridor, snow amounts will be less, but also possibly with a light wintry mix. Travel will become hazardous with snow or ice covered roads, with the worst condition north where the lowest visibilities and highest snow accumulations are anticipated. IAZ004>007-015>017-023-101800- /O.CON.KDMX.WS.W.0006.211210T1500Z-211211T1200Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, and Gilmore City 326 AM CST Fri Dec 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 6 AM CST SATURDAY... * WHAT...Heavy snow and blowing snow expected. Total snow accumulations of 4 to 9 inches. Winds gusting as high as 35 mph. * WHERE...Portions of northern Iowa. * WHEN...From 9 AM this morning to 6 AM CST Saturday. * IMPACTS...Travel could be very difficult with snow covered roads. Areas of blowing snow could significantly reduce visibility with near blizzard conditions possible tonight. The hazardous conditions could impact this eveing's commute, especially for northwest Iowa. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ039-049-050-101800- /O.EXB.KDMX.WW.Y.0016.211211T0600Z-211211T1200Z/ Black Hawk-Marshall-Tama- Including the cities of Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, Traer, Dysart, and Gladbrook 326 AM CST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST SATURDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to one inch and ice accumulations of a light glaze. Winds gusting as high as 40 mph. * WHERE...Portions of northeast Iowa. * WHEN...From midnight tonight to 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions and reduced travel times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ046>048-101800- /O.EXA.KDMX.WW.Y.0016.211210T1800Z-211211T1200Z/ Greene-Boone-Story- Including the cities of Jefferson, Boone, and Ames 326 AM CST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 6 AM CST SATURDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to one inch and ice accumulations of a light glaze. Winds gusting as high as 35 mph. * WHERE...Portions of central Iowa. * WHEN...From noon today to 6 AM CST Saturday. * IMPACTS...Plan on slippery road 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. && $$ IAZ024>028-033>038-044-045-101800- /O.CON.KDMX.WW.Y.0016.211210T1800Z-211211T1200Z/ Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster- Hamilton-Hardin-Grundy-Crawford-Carroll- Including the cities of Humboldt, Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Denison, and Carroll 326 AM CST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 6 AM CST SATURDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 1 to 4 inches and ice accumulations of a light glaze. Winds gusting as high as 35 mph. * WHERE...Portions of west central through northeast Iowa. * WHEN...From noon today to 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact this evening's commute over west central Iowa. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines Small
034 WWUS43 KDMX 101556 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 956 AM CST Fri Dec 10 2021 ...Moderate to Heavy Snow and Blowing Snow across Northern Iowa Later Today through Tonight... .A winter storm with moderate to heavy snowfall, along with blowing and drifting snow, is expected to spread from the Siouxland area across northern Iowa later today and continue into tonight. Farther south toward the Highway 30 corridor, snow amounts will be less, but also possibly with a light wintry mix. Travel will become hazardous with snow or ice covered roads, with the worst condition north where the lowest visibilities and highest snow accumulations are anticipated. IAZ004>007-015>017-023-110000- /O.CON.KDMX.WS.W.0006.000000T0000Z-211211T1200Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, and Gilmore City 956 AM CST Fri Dec 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST SATURDAY... * WHAT...Heavy snow and blowing snow expected. Total snow accumulations of 4 to 9 inches. Winds gusting as high as 35 mph. * WHERE...Portions of northern Iowa. * WHEN...From 9 AM this morning to 6 AM CST Saturday. * IMPACTS...Travel could be very difficult with snow covered roads. Areas of blowing snow could significantly reduce visibility with near blizzard conditions possible tonight. The hazardous conditions could impact this eveing's commute, especially for northwest Iowa. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ024>028-033>038-044>048-110000- /O.CON.KDMX.WW.Y.0016.211210T1800Z-211211T1200Z/ Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster- Hamilton-Hardin-Grundy-Crawford-Carroll-Greene-Boone-Story- Including the cities of Humboldt, Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Denison, Carroll, Jefferson, Boone, and Ames 956 AM CST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SATURDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 1 to 4 inches and ice accumulations of a light glaze. Winds gusting as high as 35 mph. * WHERE...Portions of west central through northeast Iowa. * WHEN...From noon today to 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact this evening's commute over west central Iowa. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ039-049-050-110000- /O.CON.KDMX.WW.Y.0016.211211T0600Z-211211T1200Z/ Black Hawk-Marshall-Tama- Including the cities of Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, Traer, Dysart, and Gladbrook 956 AM CST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST SATURDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to one inch and ice accumulations of a light glaze. Winds gusting as high as 40 mph. * WHERE...Portions of northeast Iowa. * WHEN...From midnight tonight to 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions and reduced travel times. 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
914 WWUS43 KDMX 102045 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 245 PM CST Fri Dec 10 2021 ...Moderate to Heavy Snow and Blowing Snow across Northern Iowa through Tonight... .A winter storm will continue to evolve over the area through the rest of today into tonight, bringing wintry conditions and hazardous travel. Highest snowfall amounts will be confined to far northern Iowa where 6 inches or more is possible. Lesser snowfall amounts are anticipated further south where the onset of snowfall will not begin until later this evening or tonight. Strong north winds will also create areas of blowing snow and reduced visibility. Travel will become hazardous with snow or ice covered roads, with the worst condition north where the lowest visibilities and highest snow accumulations are anticipated. IAZ004>007-015>017-023-110445- /O.CON.KDMX.WS.W.0006.000000T0000Z-211211T1200Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, and Gilmore City 245 PM CST Fri Dec 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST SATURDAY... * WHAT...Heavy snow and blowing snow expected. Total snow accumulations of 4 to 9 inches. Winds gusting as high as 35 mph. * WHERE...Portions of northern Iowa. * WHEN...Through 6 AM CST Saturday. * IMPACTS...Travel could be very difficult with snow covered roads. Areas of blowing snow could significantly reduce visibility with near blizzard conditions possible tonight. The hazardous conditions could impact this eveing's commute, especially for northwest Iowa. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ024>028-033>038-044>048-110445- /O.CON.KDMX.WW.Y.0016.000000T0000Z-211211T1200Z/ Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster- Hamilton-Hardin-Grundy-Crawford-Carroll-Greene-Boone-Story- Including the cities of 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, Denison, Carroll, Jefferson, Boone, and Ames 245 PM CST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SATURDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 1 to 4 inches and ice accumulations of a light glaze. Winds gusting as high as 35 mph. * WHERE...Portions of west central through northeast Iowa. * WHEN...Through 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact this evening's commute over west central Iowa. 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. && $$ IAZ039-049-050-110445- /O.CON.KDMX.WW.Y.0016.211211T0600Z-211211T1200Z/ Black Hawk-Marshall-Tama- Including the cities of Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, Traer, Dysart, and Gladbrook 245 PM CST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST SATURDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to one inch and ice accumulations of a light glaze. Winds gusting as high as 40 mph. * WHERE...Portions of northeast Iowa. * WHEN...From midnight tonight to 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions and reduced travel times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
037 WWUS43 KDMX 102351 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 551 PM CST Fri Dec 10 2021 ...Moderate to Heavy Snow and Blowing Snow across Northern Iowa through Tonight... .A winter storm will continue to evolve over the area through this evening, continuing wintry conditions and hazardous travel. Highest snowfall amounts will be confined to far northern Iowa where 6 inches or more is possible. Lesser snowfall amounts are anticipated further south. Strong north winds will also create areas of blowing snow and reduced visibility. Travel will become hazardous with snow or ice covered roads, with the worst condition north where the lowest visibilities and highest snow accumulations are anticipated. IAZ004>007-015>017-023-110800- /O.CON.KDMX.WS.W.0006.000000T0000Z-211211T1200Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, and Gilmore City 551 PM CST Fri Dec 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST SATURDAY... * WHAT...Heavy snow and blowing snow expected. Total snow accumulations of 4 to 9 inches. Winds gusting as high as 35 mph. * WHERE...Portions of northern Iowa. * WHEN...Through 6 AM CST Saturday. * IMPACTS...Travel could be very difficult with snow covered roads. Areas of blowing snow could significantly reduce visibility with near blizzard conditions possible tonight. The hazardous conditions could impact this eveing's commute, especially for northwest Iowa. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Krull IAZ024>028-033>038-044>048-110800- /O.CON.KDMX.WW.Y.0016.000000T0000Z-211211T1200Z/ Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster- Hamilton-Hardin-Grundy-Crawford-Carroll-Greene-Boone-Story- Including the cities of Humboldt, Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Denison, Carroll, Jefferson, Boone, and Ames 551 PM CST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SATURDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 1 to 4 inches and ice accumulations of a light glaze. Winds gusting as high as 35 mph. * WHERE...Portions of west central through northeast Iowa. * WHEN...Through 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact this evening's commute over west central Iowa. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Krull IAZ039-049-050-110800- /O.CON.KDMX.WW.Y.0016.211211T0600Z-211211T1200Z/ Black Hawk-Marshall-Tama- Including the cities of Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, Traer, Dysart, and Gladbrook 551 PM CST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST SATURDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to one inch and ice accumulations of a light glaze. Winds gusting as high as 40 mph. * WHERE...Portions of northeast Iowa. * WHEN...From midnight tonight to 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions and reduced travel times. 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. && $$ Krull For more information from the National Weather Service visit https://weather.gov/desmoines
960 WWUS43 KDMX 110306 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 906 PM CST Fri Dec 10 2021 ...Moderate to Heavy Snow and Blowing Snow across Northern Iowa through Tonight... .A winter storm will continue to evolve over the area through this evening, continuing wintry conditions and hazardous travel. Highest snowfall amounts will be confined to far northern Iowa where 6 inches or more is possible. Lesser snowfall amounts are anticipated further south. Strong north winds will also create areas of blowing snow and reduced visibility. Travel will become hazardous with snow or ice covered roads, with the worst condition north where the lowest visibilities and highest snow accumulations are anticipated. IAZ004>007-015>017-023-111115- /O.CON.KDMX.WS.W.0006.000000T0000Z-211211T1200Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, and Gilmore City 906 PM CST Fri Dec 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST SATURDAY... * WHAT...Heavy snow and blowing snow expected. Total snow accumulations of 4 to 9 inches. Winds gusting as high as 35 mph. * WHERE...Portions of northern Iowa. * WHEN...Through 6 AM CST Saturday. * IMPACTS...Travel could be very difficult with snow covered roads. Areas of blowing snow could significantly reduce visibility with near blizzard conditions possible tonight. The hazardous conditions could impact this eveing's commute, especially for northwest Iowa. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ024>028-033>038-044>048-111115- /O.CON.KDMX.WW.Y.0016.000000T0000Z-211211T1200Z/ Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster- Hamilton-Hardin-Grundy-Crawford-Carroll-Greene-Boone-Story- Including the cities of 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, Denison, Carroll, Jefferson, Boone, and Ames 906 PM CST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SATURDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 1 to 4 inches and ice accumulations of a light glaze. Winds gusting as high as 35 mph. * WHERE...Portions of west central through northeast Iowa. * WHEN...Through 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact this evening's commute over west central Iowa. 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. && $$ IAZ039-049-050-111115- /O.CON.KDMX.WW.Y.0016.211211T0600Z-211211T1200Z/ Black Hawk-Marshall-Tama- Including the cities of Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, Traer, Dysart, and Gladbrook 906 PM CST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SATURDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to one inch and ice accumulations of a light glaze. Winds gusting as high as 40 mph. * WHERE...Portions of northeast Iowa. * WHEN...From midnight tonight to 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions and reduced travel times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
809 WWUS43 KDMX 111002 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 402 AM CST Sat Dec 11 2021 ...Light Snow and Blowing Snow across Northeast Iowa through daybreak this morning... Light snow with gusty winds causing blowing snow will continue over the next few hours, ending from west to east through daybreak as the winter storm pushes out of Iowa. Additional accumulations around an inch are possible, mainly in northeast Iowa. Slippery conditions and hazardous travel are expected, so use extra caution when traveling this morning. IAZ004>007-015>017-023-111200- /O.CON.KDMX.WS.W.0006.000000T0000Z-211211T1200Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, and Gilmore City 402 AM CST Sat Dec 11 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING... * WHAT...Light snow and blowing snow. Additional snow accumulations of up to one inch. Winds gusting as high as 35 mph. * WHERE...Portions of northern Iowa. * WHEN...Until 6 AM CST early this morning. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ024>028-033>039-044>050-111200- /O.CON.KDMX.WW.Y.0016.000000T0000Z-211211T1200Z/ Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster- Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene-Boone- Story-Marshall-Tama- Including the cities of Humboldt, Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Tama, Toledo, Traer, Dysart, and Gladbrook 402 AM CST Sat Dec 11 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING... * WHAT...Light snow and blowing snow. Additional snow accumulations of up to a dusting. Winds gusting as high as 35 mph. * WHERE...Portions of east central and northeast Iowa. * WHEN...Until 6 AM CST early this morning. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Bury/Small For more information from the National Weather Service visit https://weather.gov/desmoines
180 WWUS43 KDMX 111222 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 622 AM CST Sat Dec 11 2021 IAZ004>007-015>017-023-111330- /O.EXP.KDMX.WS.W.0006.000000T0000Z-211211T1200Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, and Gilmore City 622 AM CST Sat Dec 11 2021 ...WINTER STORM WARNING WILL EXPIRE AT 6 AM CST EARLY THIS MORNING... No additional precipitation is expected, however minor blowing snow may continue through mid morning but not be significant enough to extend the warning. $$ IAZ024>028-033>039-044>050-111330- /O.EXP.KDMX.WW.Y.0016.000000T0000Z-211211T1200Z/ Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster- Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene-Boone- Story-Marshall-Tama- Including the cities of Humboldt, Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Tama, Toledo, Traer, Dysart, and Gladbrook 622 AM CST Sat Dec 11 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 AM CST EARLY THIS MORNING... No additional precipitation is expected, however minor blowing snow may continue through mid morning but not be significant enough to extend the advisory. $$ Bury/Small For more information from the National Weather Service visit https://weather.gov/desmoines
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 9, 5:14 AM CST | Winter Weather Advisory | DMX | Black Hawk, Boone, Bremer, Butler, Cerro Gordo, Franklin and 9 more | 3 hr |
| Dec 9, 11:44 AM CST | Winter Weather Advisory | DMX | Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 13 more | 42 hr |
Nearby
Winter Storm Warnings in Iowa, 2021Every winter storm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.