Alert archive / Iowa / Winter Storm Warnings in 2025
Winter Storm Warning 4, NWS Des Moines, IA
NWS Des Moines, IA issued this winter storm warning at Dec 5, 2025, 1:47 PM CST for 23 counties in Iowa. It took effect at Dec 6, 2025, 12:00 PM CST. It was in force for 15 hr. 27 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 5, 2025, 1:47 PM CST (19:47 UTC)
- In effect from
- Dec 6, 2025, 12:00 PM CST
- Expired
- Dec 7, 2025, 2:59 AM CST
- In force
- 15 hr
- Issued by
- NWS Des Moines, IA
All 23 counties
Black Hawk County, IA, Boone County, IA, Bremer County, IA, Butler County, IA, Calhoun County, IA, Cerro Gordo County, IA, Emmet County, IA, Franklin County, IA, Grundy County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Humboldt County, IA, Kossuth County, IA, Marshall County, IA, Palo Alto County, IA, Pocahontas County, IA, Story County, IA, Tama County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 106 km from the middle of the area, began a volume at 19:51 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 6, 5:10 PM CST | SNOW 4.5 | Fort Dodge, IA | |
| Dec 6, 5:20 PM CST | SNOW 4.3 | 2 Nne Otho, IA | |
| Dec 6, 6:00 PM CST | SNOW 3 | Ames, IA | |
| Dec 6, 6:05 PM CST | SNOW 5.5 | Fort Dodge, IA | |
| Dec 6, 6:20 PM CST | SNOW 5.5 | 3 Nne Napier, IA | Event total thus far. |
| Dec 6, 6:55 PM CST | SNOW 6 | 2 Nne Otho, IA | |
| Dec 6, 7:27 PM CST | SNOW 7 | 2 Ne Fort Dodge, IA | Corrects previous rain report from 2 NE Fort Dodge. Reported by Trained Spotter. |
| Dec 6, 8:41 PM CST | SNOW 7.5 | 2 Ne Fort Dodge, IA | Reported by Trained Spotter. |
| Dec 6, 9:00 PM CST | SNOW 5 | Iowa Falls, IA | |
| Dec 6, 9:05 PM CST | SNOW 6.5 | 1 W Ames, IA | Reported by Trained Spotter. |
| Dec 6, 9:10 PM CST | SNOW 6 | Cambridge, IA | |
| Dec 6, 9:20 PM CST | SNOW 5 | Hubbard, IA | Still snowing. |
| Dec 6, 9:25 PM CST | SNOW 4 | Rolfe, IA | |
| Dec 6, 9:30 PM CST | SNOW 6 | Boxholm, IA | |
| Dec 6, 9:45 PM CST | SNOW 6 | Marshalltown, IA | |
| Dec 6, 9:50 PM CST | SNOW 7 | Roland, IA | Light snow continues. |
| Dec 6, 10:00 PM CST | SNOW 4 | Clear Lake, IA | |
| Dec 6, 10:15 PM CST | SNOW 8 | Fort Dodge, IA | |
| Dec 6, 10:35 PM CST | SNOW 7 | Webster City, IA | |
| Dec 6, 11:22 PM CST | SNOW 5.5 | 1 N Boone, IA | Snow tapering off. |
| Dec 6, 11:30 PM CST | SNOW 8 | 1 Wnw Ames, IA | East side of ISU campus, snow has tapered off. |
| Dec 6, 11:40 PM CST | SNOW 4.2 | 1 W Lake City, IA | |
| Dec 7, 12:00 AM CST | SNOW 3.2 | Cedar Falls, IA | |
| Dec 7, 12:00 AM CST | SNOW 6 | 3 S Nevada, IA | event total. |
| Dec 7, 12:00 AM CST | SNOW 6.5 | 1 Wsw Ames, IA | event total. |
| Dec 7, 12:00 AM CST | SNOW 6.8 | 3 Nne Napier, IA | Event total. |
| Dec 7, 12:19 AM CST | SNOW 3.2 | Waterloo Regional Airpo, 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, 7.8 hours before the alert went out and 241 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
- 616 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 110 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
995 WWUS43 KDMX 051947 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 147 PM CST Fri Dec 5 2025 IAZ004-005-015-016-023>025-035-036-060600- /O.UPG.KDMX.WS.A.0006.251206T1800Z-251207T0600Z/ /O.NEW.KDMX.WS.W.0004.251206T1800Z-251207T0600Z/ Emmet-Kossuth-Palo Alto-Hancock-Pocahontas-Humboldt-Wright- Webster-Hamilton- Including the cities of Clarion, Pocahontas, Kanawha, Webster City, Fonda, Rolfe, Belmond, Algona, Gilmore City, Fort Dodge, Humboldt, Laurens, Eagle Grove, Emmetsburg, Britt, Garner, and Estherville 147 PM CST Fri Dec 5 2025 ...WINTER STORM WARNING IN EFFECT FROM NOON SATURDAY TO MIDNIGHT CST SATURDAY NIGHT... * WHAT...Heavy snow expected. Total snow accumulations between 4 and 6 inches. Locally higher amounts up to 8 inches. * WHERE...Portions of north central Iowa. * WHEN...From noon Saturday to midnight CST Saturday Night. * IMPACTS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ026-027-037>039-060600- /O.UPG.KDMX.WS.A.0006.251207T0000Z-251207T1200Z/ /O.NEW.KDMX.WS.W.0004.251206T2100Z-251207T1200Z/ Franklin-Butler-Hardin-Grundy-Black Hawk- Including the cities of Eldora, Dumont, Aplington, Waterloo, Parkersburg, Reinbeck, Iowa Falls, Grundy Center, Conrad, Dike, Shell Rock, Wellsburg, Cedar Falls, Ackley, Greene, Allison, Hampton, and Clarksville 147 PM CST Fri Dec 5 2025 ...WINTER STORM WARNING IN EFFECT FROM 3 PM SATURDAY TO 6 AM CST SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations between 4 and 6 inches. Locally higher amounts up to 8 inches. * WHERE...Grundy, Hardin, Butler, Franklin, and Black Hawk Counties. * WHEN...From 3 PM Saturday to 6 AM CST Sunday. * IMPACTS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ006-033-034-045>047-060600- /O.UPG.KDMX.WS.A.0006.251206T1800Z-251207T0600Z/ /O.NEW.KDMX.WW.Y.0017.251206T1800Z-251207T0600Z/ Winnebago-Sac-Calhoun-Carroll-Greene-Boone- Including the cities of Schaller, Forest City, Lake View, Early, Jefferson, Pomeroy, Odebolt, Wall Lake, Lake Mills, Lake City, Manson, Carroll, Boone, Sac City, and Rockwell City 147 PM CST Fri Dec 5 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON SATURDAY TO MIDNIGHT CST SATURDAY NIGHT... * WHAT...Snow expected. Total snow accumulations between 3 and 5 inches. * WHERE...Portions of northern and central Iowa. * WHEN...From noon Saturday to midnight CST Saturday Night. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ007-017-048>050-060>062-060600- /O.UPG.KDMX.WS.A.0006.251207T0000Z-251207T1200Z/ /O.NEW.KDMX.WW.Y.0017.251206T2100Z-251207T1200Z/ Worth-Cerro Gordo-Story-Marshall-Tama-Polk-Jasper-Poweshiek- Including the cities of Gladbrook, Toledo, Manly, Des Moines, Tama, Clear Lake, Ames, Marshalltown, Newton, Traer, Mason City, Dysart, Grinnell, and Northwood 147 PM CST Fri Dec 5 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM SATURDAY TO 6 AM CST SUNDAY... * WHAT...Snow expected. Total snow accumulations between 4 and 6 inches. * WHERE...Portions of central and north central Iowa. * WHEN...From 3 PM Saturday to 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ044-057>059-071-072-060600- /O.NEW.KDMX.WW.Y.0017.251206T1800Z-251207T0600Z/ Crawford-Audubon-Guthrie-Dallas-Adair-Madison- Including the cities of Bayard, Casey, Adair, Perry, Fontanelle, Earlham, Denison, Guthrie Center, Waukee, Stuart, Winterset, Exira, Audubon, Greenfield, Panora, and Adel 147 PM CST Fri Dec 5 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON SATURDAY TO MIDNIGHT CST SATURDAY NIGHT... * WHAT...Snow expected. Total snow accumulations between 2 and 4 inches. * WHERE...Portions of central into northern Iowa. * WHEN...From noon Saturday to midnight CST Saturday Night. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ028-073>075-060600- /O.NEW.KDMX.WW.Y.0017.251206T2100Z-251207T1200Z/ Bremer-Warren-Marion-Mahaska- Including the cities of Knoxville, Indianola, Carlisle, Pella, Waverly, Oskaloosa, and Norwalk 147 PM CST Fri Dec 5 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM SATURDAY TO 6 AM CST SUNDAY... * WHAT...Snow expected. Total snow accumulations between 3 and 5 inches. * WHERE...Bremer, Mahaska, Marion, and Warren Counties. * WHEN...From 3 PM Saturday to 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ Jimenez
7 follow-up statements
598 WWUS43 KDMX 060313 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 913 PM CST Fri Dec 5 2025 IAZ004-005-015-016-023>025-035-036-061315- /O.CON.KDMX.WS.W.0004.251206T1800Z-251207T0600Z/ Emmet-Kossuth-Palo Alto-Hancock-Pocahontas-Humboldt-Wright- Webster-Hamilton- Including the cities of Emmetsburg, Humboldt, Belmond, Clarion, Webster City, Fonda, Garner, Algona, Kanawha, Laurens, Eagle Grove, Rolfe, Gilmore City, Fort Dodge, Britt, Pocahontas, and Estherville 913 PM CST Fri Dec 5 2025 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON SATURDAY TO MIDNIGHT CST SATURDAY NIGHT... * WHAT...Heavy snow expected. Total snow accumulations around 6 inches. Locally higher amounts up to 8 inches. * WHERE...Portions of central, north central, and northwest Iowa. * WHEN...From noon Saturday to midnight CST Saturday Night. * IMPACTS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ026-027-037>039-061315- /O.CON.KDMX.WS.W.0004.251206T2100Z-251207T1200Z/ Franklin-Butler-Hardin-Grundy-Black Hawk- Including the cities of Clarksville, Iowa Falls, Aplington, Wellsburg, Grundy Center, Eldora, Parkersburg, Ackley, Allison, Hampton, Greene, Reinbeck, Shell Rock, Dike, Waterloo, Dumont, Conrad, and Cedar Falls 913 PM CST Fri Dec 5 2025 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM SATURDAY TO 6 AM CST SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations around 6 inches. Locally higher amounts up to 8 inches. * WHERE...Grundy, Hardin, Butler, Franklin, and Black Hawk Counties. * WHEN...From 3 PM Saturday to 6 AM CST Sunday. * IMPACTS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ006-033-034-044>047-057>059-071-072-061315- /O.CON.KDMX.WW.Y.0017.251206T1800Z-251207T0600Z/ Winnebago-Sac-Calhoun-Crawford-Carroll-Greene-Boone-Audubon- Guthrie-Dallas-Adair-Madison- Including the cities of Rockwell City, Schaller, Sac City, Wall Lake, Boone, Denison, Greenfield, Odebolt, Manson, Jefferson, Earlham, Lake Mills, Casey, Pomeroy, Carroll, Lake City, Waukee, Guthrie Center, Fontanelle, Perry, Adel, Audubon, Adair, Forest City, Early, Exira, Stuart, Panora, Lake View, Winterset, and Bayard 913 PM CST Fri Dec 5 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON SATURDAY TO MIDNIGHT CST SATURDAY NIGHT... * WHAT...Snow expected. Total snow accumulations between 3 and 5 inches. * WHERE...Portions of central, north central, south central, southwest, and west central Iowa. * WHEN...From noon Saturday to midnight CST Saturday Night. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ007-017-028-048>050-060>062-073>075-061315- /O.CON.KDMX.WW.Y.0017.251206T2100Z-251207T1200Z/ Worth-Cerro Gordo-Bremer-Story-Marshall-Tama-Polk-Jasper- Poweshiek-Warren-Marion-Mahaska- Including the cities of Waverly, Indianola, Pella, Manly, Toledo, Carlisle, Des Moines, Traer, Marshalltown, Mason City, Newton, Oskaloosa, Ames, Knoxville, Dysart, Norwalk, Clear Lake, Grinnell, Gladbrook, Tama, and Northwood 913 PM CST Fri Dec 5 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM SATURDAY TO 6 AM CST SUNDAY... * WHAT...Snow expected. Total snow accumulations between 3 and 5 inches. * WHERE...Portions of central, north central, northeast, and south central Iowa. * WHEN...From 3 PM Saturday to 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ Borghoff
059 WWUS43 KDMX 060839 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 239 AM CST Sat Dec 6 2025 IAZ006-061845- /O.UPG.KDMX.WW.Y.0017.251206T1800Z-251207T0600Z/ /O.EXA.KDMX.WS.W.0004.251206T1800Z-251207T0600Z/ Winnebago- Including the cities of Forest City and Lake Mills 239 AM CST Sat Dec 6 2025 ...WINTER STORM WARNING IN EFFECT FROM NOON TODAY TO MIDNIGHT CST TONIGHT... * WHAT...Heavy snow expected. Total snow accumulations around 6 inches. Locally higher amounts up to 8 inches. * WHERE...Winnebago County. * WHEN...From noon today to midnight CST tonight. * IMPACTS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ007-017-028-061845- /O.UPG.KDMX.WW.Y.0017.251206T2100Z-251207T1200Z/ /O.EXA.KDMX.WS.W.0004.251206T2100Z-251207T1200Z/ Worth-Cerro Gordo-Bremer- Including the cities of Northwood, Mason City, Waverly, Clear Lake, and Manly 239 AM CST Sat Dec 6 2025 ...WINTER STORM WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 AM CST SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations around 6 inches. Locally higher amounts up to 8 inches. * WHERE...Cerro Gordo, Worth, and Bremer Counties. * WHEN...From 3 PM this afternoon to 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ004-005-015-016-023>025-035-036-061845- /O.CON.KDMX.WS.W.0004.251206T1800Z-251207T0600Z/ Emmet-Kossuth-Palo Alto-Hancock-Pocahontas-Humboldt-Wright- Webster-Hamilton- Including the cities of Gilmore City, Fort Dodge, Emmetsburg, Estherville, Humboldt, Eagle Grove, Algona, Clarion, Pocahontas, Webster City, Britt, Belmond, Rolfe, Garner, Fonda, Kanawha, and Laurens 239 AM CST Sat Dec 6 2025 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO MIDNIGHT CST TONIGHT... * WHAT...Heavy snow expected. Total snow accumulations around 6 inches. Locally higher amounts up to 8 inches. * WHERE...Portions of northern Iowa. * WHEN...From noon today to midnight CST tonight. * IMPACTS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ026-027-037>039-061845- /O.CON.KDMX.WS.W.0004.251206T2100Z-251207T1200Z/ Franklin-Butler-Hardin-Grundy-Black Hawk- Including the cities of Eldora, Clarksville, Ackley, Grundy Center, Cedar Falls, Greene, Hampton, Waterloo, Shell Rock, Dumont, Conrad, Dike, Iowa Falls, Wellsburg, Reinbeck, Allison, Parkersburg, and Aplington 239 AM CST Sat Dec 6 2025 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 AM CST SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations around 6 inches. Locally higher amounts up to 8 inches. * WHERE...Grundy, Hardin, Butler, Franklin, and Black Hawk Counties. * WHEN...From 3 PM this afternoon to 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ033-034-044>047-057>059-071-072-061845- /O.CON.KDMX.WW.Y.0017.251206T1800Z-251207T0600Z/ Sac-Calhoun-Crawford-Carroll-Greene-Boone-Audubon-Guthrie-Dallas- Adair-Madison- Including the cities of Lake View, Stuart, Boone, Lake City, Sac City, Bayard, Early, Schaller, Winterset, Panora, Jefferson, Odebolt, Perry, Adair, Exira, Wall Lake, Greenfield, Casey, Rockwell City, Carroll, Audubon, Denison, Waukee, Fontanelle, Adel, Guthrie Center, Manson, Earlham, and Pomeroy 239 AM CST Sat Dec 6 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO MIDNIGHT CST TONIGHT... * WHAT...Snow expected. Total snow accumulations between 2 and 5 inches. * WHERE...Portions of central Iowa. * WHEN...From noon today to midnight CST tonight. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ048>050-060>062-073>075-061845- /O.CON.KDMX.WW.Y.0017.251206T2100Z-251207T1200Z/ Story-Marshall-Tama-Polk-Jasper-Poweshiek-Warren-Marion-Mahaska- Including the cities of Carlisle, Knoxville, Newton, Ames, Tama, Traer, Dysart, Pella, Marshalltown, Indianola, Toledo, Gladbrook, Oskaloosa, Norwalk, Grinnell, and Des Moines 239 AM CST Sat Dec 6 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 AM CST SUNDAY... * WHAT...Snow expected. Total snow accumulations between 2 and 5 inches. * WHERE...Portions of central and south central Iowa. * WHEN...From 3 PM this afternoon to 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ Hagenhoff
518 WWUS43 KDMX 061706 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 1106 AM CST Sat Dec 6 2025 IAZ004>006-015-016-023>025-035-036-070315- /O.CON.KDMX.WS.W.0004.251206T1800Z-251207T0600Z/ Emmet-Kossuth-Winnebago-Palo Alto-Hancock-Pocahontas-Humboldt- Wright-Webster-Hamilton- Including the cities of Eagle Grove, Fort Dodge, Forest City, Webster City, Algona, Humboldt, Belmond, Emmetsburg, Fonda, Kanawha, Garner, Lake Mills, Estherville, Clarion, Rolfe, Gilmore City, Laurens, Britt, and Pocahontas 1106 AM CST Sat Dec 6 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * WHAT...Heavy snow expected. Total snow accumulations around 6 inches. Locally higher amounts up to 8 inches. * WHERE...Portions of central, north central, and northwest Iowa. * WHEN...Until midnight CST tonight. * IMPACTS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ007-017-026>028-037>039-070315- /O.CON.KDMX.WS.W.0004.251206T2100Z-251207T1200Z/ Worth-Cerro Gordo-Franklin-Butler-Bremer-Hardin-Grundy-Black Hawk- Including the cities of Iowa Falls, Greene, Allison, Dumont, Aplington, Clear Lake, Northwood, Mason City, Wellsburg, Eldora, Clarksville, Manly, Reinbeck, Conrad, Grundy Center, Hampton, Waverly, Ackley, Parkersburg, Shell Rock, Dike, Waterloo, and Cedar Falls 1106 AM CST Sat Dec 6 2025 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 AM CST SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations around 6 inches. Locally higher amounts up to 8 inches. * WHERE...Portions of central, north central, and northeast Iowa. * WHEN...From 3 PM this afternoon to 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ033-034-044>047-057>059-071-072-070315- /O.CON.KDMX.WW.Y.0017.251206T1800Z-251207T0600Z/ Sac-Calhoun-Crawford-Carroll-Greene-Boone-Audubon-Guthrie-Dallas- Adair-Madison- Including the cities of Rockwell City, Audubon, Sac City, Early, Pomeroy, Lake View, Manson, Panora, Winterset, Jefferson, Earlham, Adair, Carroll, Boone, Bayard, Exira, Odebolt, Denison, Schaller, Greenfield, Waukee, Adel, Fontanelle, Wall Lake, Lake City, Guthrie Center, Casey, Stuart, and Perry 1106 AM CST Sat Dec 6 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * WHAT...Snow expected. Total snow accumulations between 2 and 5 inches. * WHERE...Portions of central, south central, southwest, and west central Iowa. * WHEN...Until midnight CST tonight. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ048>050-060>062-073>075-070315- /O.CON.KDMX.WW.Y.0017.251206T2100Z-251207T1200Z/ Story-Marshall-Tama-Polk-Jasper-Poweshiek-Warren-Marion-Mahaska- Including the cities of Knoxville, Newton, Gladbrook, Norwalk, Grinnell, Pella, Tama, Toledo, Carlisle, Marshalltown, Traer, Oskaloosa, Des Moines, Ames, Indianola, and Dysart 1106 AM CST Sat Dec 6 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 AM CST SUNDAY... * WHAT...Snow expected. Total snow accumulations between 2 and 5 inches. * WHERE...Portions of central and south central Iowa. * WHEN...From 3 PM this afternoon to 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ Zogg
262 WWUS43 KDMX 062020 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 220 PM CST Sat Dec 6 2025 IAZ050-070630- /O.UPG.KDMX.WW.Y.0017.251206T2100Z-251207T1200Z/ /O.EXA.KDMX.WS.W.0004.251206T2100Z-251207T1200Z/ Tama- Including the cities of Tama, Gladbrook, Traer, Dysart, and Toledo 220 PM CST Sat Dec 6 2025 ...WINTER STORM WARNING IN EFFECT UNTIL 6 AM CST SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations between 4 and 6 inches. * WHERE...Tama County. * WHEN...Until 6 AM CST Sunday. * IMPACTS...Hazardous travel conditions are expected. * ADDITIONAL DETAILS...Snowfall rates of an inch or more per hour will lead to quickly deteriorating conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ004>006-015-016-023>025-035-036-070600- /O.CON.KDMX.WS.W.0004.000000T0000Z-251207T0600Z/ Emmet-Kossuth-Winnebago-Palo Alto-Hancock-Pocahontas-Humboldt- Wright-Webster-Hamilton- Including the cities of Laurens, Garner, Rolfe, Algona, Gilmore City, Kanawha, Belmond, Eagle Grove, Britt, Webster City, Forest City, Humboldt, Lake Mills, Fort Dodge, Clarion, Pocahontas, Estherville, Fonda, and Emmetsburg 220 PM CST Sat Dec 6 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * WHAT...Heavy snow expected. Total snow accumulations 4 to 7 inches. * WHERE...Portions of central, north central, and northwest Iowa. * WHEN...Until midnight CST tonight. * IMPACTS...Hazardous travel conditions are expected. * ADDITIONAL DETAILS...Snowfall rates of an inch or more per hour will lead to quickly deteriorating conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ007-017-026>028-037>039-070630- /O.CON.KDMX.WS.W.0004.251206T2100Z-251207T1200Z/ Worth-Cerro Gordo-Franklin-Butler-Bremer-Hardin-Grundy-Black Hawk- Including the cities of Greene, Reinbeck, Waverly, Eldora, Waterloo, Manly, Mason City, Allison, Parkersburg, Dumont, Grundy Center, Ackley, Clarksville, Shell Rock, Wellsburg, Aplington, Clear Lake, Hampton, Conrad, Cedar Falls, Iowa Falls, Dike, and Northwood 220 PM CST Sat Dec 6 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations of 4 to 7 inches. * WHERE...Portions of central, north central, and northeast Iowa. * WHEN...Until 6 AM CST Sunday. * IMPACTS...Hazardous travel conditions are expected. * ADDITIONAL DETAILS...Snowfall rates of an inch or more per hour will lead to quickly deteriorating conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ085-086-070630- /O.EXA.KDMX.WW.Y.0017.251206T2100Z-251207T1200Z/ Monroe-Wapello- Including the cities of Albia and Ottumwa 220 PM CST Sat Dec 6 2025 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST SUNDAY... * WHAT...Snow expected. Total snow accumulations up to two inches. A brief period of freezing drizzle may occur. * WHERE...Monroe and Wapello Counties. * WHEN...Until 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ033-034-044>047-057>059-071-072-070600- /O.CON.KDMX.WW.Y.0017.000000T0000Z-251207T0600Z/ Sac-Calhoun-Crawford-Carroll-Greene-Boone-Audubon-Guthrie-Dallas- Adair-Madison- Including the cities of Sac City, Adel, Adair, Audubon, Guthrie Center, Waukee, Panora, Fontanelle, Lake City, Lake View, Schaller, Early, Wall Lake, Rockwell City, Perry, Pomeroy, Exira, Manson, Boone, Jefferson, Odebolt, Bayard, Casey, Greenfield, Stuart, Winterset, Earlham, Carroll, and Denison 220 PM CST Sat Dec 6 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * WHAT...Snow expected. Total snow accumulations between 2 and 5 inches. * WHERE...Portions of central, south central, southwest, and west central Iowa. * WHEN...Until midnight CST tonight. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ048-049-060>062-073>075-070630- /O.CON.KDMX.WW.Y.0017.251206T2100Z-251207T1200Z/ Story-Marshall-Polk-Jasper-Poweshiek-Warren-Marion-Mahaska- Including the cities of Ames, Grinnell, Oskaloosa, Marshalltown, Carlisle, Norwalk, Newton, Knoxville, Des Moines, Indianola, and Pella 220 PM CST Sat Dec 6 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY... * WHAT...Snow expected. Total snow accumulations between 2 and 4 inches. * WHERE...Portions of central and south central Iowa. * WHEN...Until 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ Donavon
029 WWUS43 KDMX 062246 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 446 PM CST Sat Dec 6 2025 IAZ006-070600- /O.CAN.KDMX.WS.W.0004.000000T0000Z-251207T0600Z/ /O.EXA.KDMX.WW.Y.0017.000000T0000Z-251207T0600Z/ Winnebago- Including the cities of Forest City and Lake Mills 446 PM CST Sat Dec 6 2025 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Snow. Additional snow accumulations between 2 and 3 inches. * WHERE...Winnebago County. * WHEN...Until midnight CST tonight. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ007-070900- /O.CAN.KDMX.WS.W.0004.000000T0000Z-251207T1200Z/ /O.EXA.KDMX.WW.Y.0017.000000T0000Z-251207T1200Z/ Worth- Including the cities of Northwood and Manly 446 PM CST Sat Dec 6 2025 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST SUNDAY... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Snow. Additional snow accumulations between 2 and 3 inches. * WHERE...Worth County. * WHEN...Until 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ034-047-070600- /O.UPG.KDMX.WW.Y.0017.000000T0000Z-251207T0600Z/ /O.EXA.KDMX.WS.W.0004.000000T0000Z-251207T0600Z/ Calhoun-Boone- Including the cities of Manson, Rockwell City, Pomeroy, Lake City, and Boone 446 PM CST Sat Dec 6 2025 ...WINTER STORM WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * WHAT...Heavy snow. Total snow accumulations around 6 inches. * WHERE...Boone and Calhoun Counties. * WHEN...Until midnight CST tonight. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ048-049-070900- /O.UPG.KDMX.WW.Y.0017.000000T0000Z-251207T1200Z/ /O.EXA.KDMX.WS.W.0004.000000T0000Z-251207T1200Z/ Story-Marshall- Including the cities of Marshalltown and Ames 446 PM CST Sat Dec 6 2025 ...WINTER STORM WARNING IN EFFECT UNTIL 6 AM CST SUNDAY... * WHAT...Heavy snow. Total snow accumulations around 6 inches. * WHERE...Marshall and Story Counties. * WHEN...Until 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ004-005-015-016-023>025-035-036-070600- /O.CON.KDMX.WS.W.0004.000000T0000Z-251207T0600Z/ Emmet-Kossuth-Palo Alto-Hancock-Pocahontas-Humboldt-Wright- Webster-Hamilton- Including the cities of Kanawha, Belmond, Pocahontas, Algona, Rolfe, Fonda, Laurens, Humboldt, Webster City, Estherville, Garner, Clarion, Emmetsburg, Eagle Grove, Gilmore City, Britt, and Fort Dodge 446 PM CST Sat Dec 6 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * WHAT...Heavy snow. Total snow accumulations of 6 to 8 inches. * WHERE...Portions of central, north central, and northwest Iowa. * WHEN...Until midnight CST tonight. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ017-026>028-037>039-050-070900- /O.CON.KDMX.WS.W.0004.000000T0000Z-251207T1200Z/ Cerro Gordo-Franklin-Butler-Bremer-Hardin-Grundy-Black Hawk-Tama- Including the cities of Dumont, Tama, Parkersburg, Waverly, Eldora, Cedar Falls, Gladbrook, Grundy Center, Aplington, Reinbeck, Dysart, Wellsburg, Toledo, Conrad, Iowa Falls, Mason City, Ackley, Greene, Dike, Traer, Hampton, Clarksville, Clear Lake, Allison, Waterloo, and Shell Rock 446 PM CST Sat Dec 6 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY... * WHAT...Heavy snow. Total snow accumulations of 6 to 8 inches. * WHERE...Portions of central, north central, and northeast Iowa. * WHEN...Until 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ033-044>046-057>059-071-072-070600- /O.CON.KDMX.WW.Y.0017.000000T0000Z-251207T0600Z/ Sac-Crawford-Carroll-Greene-Audubon-Guthrie-Dallas-Adair-Madison- Including the cities of Wall Lake, Fontanelle, Lake View, Greenfield, Winterset, Carroll, Schaller, Adel, Exira, Adair, Sac City, Odebolt, Earlham, Audubon, Jefferson, Panora, Guthrie Center, Denison, Waukee, Early, Stuart, Perry, Casey, and Bayard 446 PM CST Sat Dec 6 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * WHAT...Snow. Additional snow accumulations of 2 to 3 inches. * WHERE...Portions of central, south central, southwest, and west central Iowa. * WHEN...Until midnight CST tonight. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ060>062-073>075-085-086-070900- /O.CON.KDMX.WW.Y.0017.000000T0000Z-251207T1200Z/ Polk-Jasper-Poweshiek-Warren-Marion-Mahaska-Monroe-Wapello- Including the cities of Ottumwa, Carlisle, Albia, Oskaloosa, Norwalk, Grinnell, Knoxville, Indianola, Newton, Pella, and Des Moines 446 PM CST Sat Dec 6 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY... * WHAT...Snow. Additional snow accumulations between 2 and 4 inches. * WHERE...Portions of central, south central, and southeast Iowa. * WHEN...Until 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ Borghoff
198 WWUS43 KDMX 070552 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 1152 PM CST Sat Dec 6 2025 IAZ004-005-015-016-023>025-034>036-047-070700- /O.EXP.KDMX.WS.W.0004.000000T0000Z-251207T0600Z/ Emmet-Kossuth-Palo Alto-Hancock-Pocahontas-Humboldt-Wright- Calhoun-Webster-Hamilton-Boone- Including the cities of Boone, Britt, Manson, Gilmore City, Rolfe, Humboldt, Kanawha, Emmetsburg, Eagle Grove, Garner, Clarion, Fort Dodge, Lake City, Rockwell City, Fonda, Webster City, Laurens, Algona, Pocahontas, Belmond, Estherville, and Pomeroy 1152 PM CST Sat Dec 6 2025 ...WINTER STORM WARNING WILL EXPIRE AT MIDNIGHT CST TONIGHT... Accumulating snow is ending across the area. Lingering very light snow and freezing drizzle may last another hour or two overnight. Road conditions remain hazardous. $$ IAZ006-033-044>046-057>059-071-072-070700- /O.EXP.KDMX.WW.Y.0017.000000T0000Z-251207T0600Z/ Winnebago-Sac-Crawford-Carroll-Greene-Audubon-Guthrie-Dallas- Adair-Madison- Including the cities of Panora, Guthrie Center, Lake Mills, Lake View, Jefferson, Earlham, Perry, Stuart, Carroll, Wall Lake, Schaller, Sac City, Exira, Casey, Bayard, Adair, Forest City, Denison, Fontanelle, Audubon, Waukee, Adel, Greenfield, Early, Odebolt, and Winterset 1152 PM CST Sat Dec 6 2025 ...WINTER WEATHER ADVISORY WILL EXPIRE AT MIDNIGHT CST TONIGHT... Accumulating snow is ending across the area. Lingering very light snow and freezing drizzle may last another hour or two overnight. Road conditions remain hazardous. $$ IAZ017-026>028-037>039-048>050-071200- /O.CON.KDMX.WS.W.0004.000000T0000Z-251207T1200Z/ Cerro Gordo-Franklin-Butler-Bremer-Hardin-Grundy-Black Hawk-Story- Marshall-Tama- Including the cities of Dysart, Iowa Falls, Gladbrook, Dike, Wellsburg, Parkersburg, Ames, Dumont, Eldora, Marshalltown, Ackley, Reinbeck, Allison, Grundy Center, Clear Lake, Aplington, Waverly, Traer, Tama, Toledo, Greene, Clarksville, Shell Rock, Waterloo, Hampton, Conrad, Cedar Falls, and Mason City 1152 PM CST Sat Dec 6 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY... * WHAT...Additional snow accumulations up to one inch overnight. * WHERE...Portions of central Iowa. * WHEN...Until 6 AM CST Sunday. * IMPACTS...Hazardous travel conditions are expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ IAZ007-060>062-073>075-085-086-071200- /O.CON.KDMX.WW.Y.0017.000000T0000Z-251207T1200Z/ Worth-Polk-Jasper-Poweshiek-Warren-Marion-Mahaska-Monroe-Wapello- Including the cities of Indianola, Newton, Norwalk, Pella, Ottumwa, Albia, Des Moines, Knoxville, Northwood, Manly, Oskaloosa, Carlisle, and Grinnell 1152 PM CST Sat Dec 6 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY... * WHAT...Mixed precipitation. Additional snow accumulations up to one inch and ice accumulations around a light glaze. * WHERE...Portions of central Iowa. * WHEN...Until 6 AM CST Sunday. * IMPACTS...Hazardous travel conditions are expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511. && $$ Hagenhoff
332 WWUS43 KDMX 070859 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 259 AM CST Sun Dec 7 2025 IAZ017-026>028-037>039-048>050-071000- /O.CAN.KDMX.WS.W.0004.000000T0000Z-251207T1200Z/ Cerro Gordo-Franklin-Butler-Bremer-Hardin-Grundy-Black Hawk-Story- Marshall-Tama- Including the cities of Dysart, Iowa Falls, Gladbrook, Dike, Wellsburg, Parkersburg, Ames, Dumont, Eldora, Marshalltown, Ackley, Reinbeck, Allison, Grundy Center, Clear Lake, Aplington, Waverly, Traer, Tama, Toledo, Greene, Clarksville, Shell Rock, Waterloo, Hampton, Conrad, Cedar Falls, and Mason City 259 AM CST Sun Dec 7 2025 ...WINTER STORM WARNING IS CANCELLED... Accumulating snow is ending across the area. Lingering very light snow and freezing drizzle may last another hour or two overnight. Road conditions remain hazardous. $$ IAZ007-060>062-073>075-085-086-071000- /O.CAN.KDMX.WW.Y.0017.000000T0000Z-251207T1200Z/ Worth-Polk-Jasper-Poweshiek-Warren-Marion-Mahaska-Monroe-Wapello- Including the cities of Indianola, Newton, Norwalk, Pella, Ottumwa, Albia, Des Moines, Knoxville, Northwood, Manly, Oskaloosa, Carlisle, and Grinnell 259 AM CST Sun Dec 7 2025 ...WINTER WEATHER ADVISORY IS CANCELLED... Accumulating snow is ending across the area. Lingering very light snow and freezing drizzle may last another hour or two overnight. Road conditions remain hazardous. $$ Hagenhoff
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Des Moines, IA wrote its last area forecast discussion before this winter storm warning went out at Dec 5, 11:31 AM CST, 2 hours 16 minutes earlier. Its key messages:
- Milder today with highs in the low 30s. Light dusting of snow possible across northern Iowa today.
- Accumulating snowfall likely Saturday afternoon into Sunday morning. The heavier band of 4-7+ inches of snow looks to set up from northwest into central Iowa.
Area forecast discussion, Dec 5, 11:31 AM CST, 2 hours 16 minutes before
Area Forecast Discussion National Weather Service Des Moines IA 1131 AM CST Fri Dec 5 2025 ...Updated for the 18z Aviation Discussion... .KEY MESSAGES... - Milder today with highs in the low 30s. Light dusting of snow possible across northern Iowa today. - Accumulating snowfall likely Saturday afternoon into Sunday morning. The heavier band of 4-7+ inches of snow looks to set up from northwest into central Iowa. && .DISCUSSION... Issued at 304 AM CST Fri Dec 5 2025 Early this Friday morning surface low pressure sites northwest of the area across North Dakota and northern Minnesota, allowing for southerly flow into Iowa. This has allowed temperatures overnight to remain fairly steady or even rise a degree or two. This surface low will shift east across Minnesota through today with the southern edge of snow skimming across northern Iowa. Forcing and moisture are focus north of the area, so impacts to the area are expected to be minimal with perhaps a dusting of snow across the northern couple tiers of Iowa counties through this afternoon. Our attention then turns to a more robust system set to impact Iowa on Saturday. The 500 mb pattern doesn't look like much, a subtle embedded perturbation in the upper level northwest flow. But as this wave passes across the Rockies it undergoes lee cyclogenesis with a surface low that will track across Missouri on Saturday, placing Iowa on the northern deformation zone side of the low. Snow is expected to arrive in western Iowa by around noon on Saturday, reaching the I-35 corridor by later afternoon, and western Iowa by evening, then ending overnight through Sunday morning. Cross sections and soundings show that lift is present through the dendritic growth zone but not always maximized there, and the depth of the DGZ is fairly average. This should result in snow to liquid ratios near to just above climatology for this time of year. Cobb output maintains SLRs of 15-20:1 through the band of heavier snow accumulations, expected to set up roughly from northwest into central Iowa. This placement may still shift, as the GFS remains further south compared to the Euro. The event is now within the range of extended CAM runs and the HRRR/RAP both seem to agree with the Euro placement of the heaviest snow band at this time. It is also worth noting that the 00z HREF indicates the potential for 1+"/hr rates within this heavier band. The previous discussion mentioned an upward trend in the QPF, and indeed another ~0.05" was added on this shift which helped to nudge up accumulations. Across models, there is a consistent signal for 4-7+ inches of snow from northwest to central Iowa. With onset expected in western Iowa in the next 36 hrs, have issued a Winter Storm Watch for the area where the axis of heaviest snow is most likely to fall. Portions of this will later transition to either an advisory or warning with some expansion possible. Snow tapers off on Sunday morning with colder air filtering in behind, resulting in another day with highs in the teens to low 20s (single digits far north). The upcoming week brings additional chances for snow as waves move through the active northwest flow pattern. && .AVIATION /18Z TAFS THROUGH 18Z SATURDAY/... Issued at 1131 AM CST Fri Dec 5 2025 Light snow is falling over a few places in northern Iowa at midday and have continued with PROB30 at MCW. At FOD and ALO, no mention of any wintry precipitation, but have seen a few reports of freezing drizzle. However, confidence is too low to include even a PROB30 line with it fleeting at best. MVFR ceilings will sink southward this afternoon over MCW, FOD, and ALO and into tonight at the other terminals. Outside of MCW that has IFR ceilings for a period tonight, brief periods of IFR cannot be ruled out at the other terminals and may need to be added later. Towards Saturday morning, guidance is showing fog developing over portions of southern into western Iowa and at this time it is not close enough to DSM or FOD to include. Conditions may improve at MCW or ALO toward the end of the period, but maintained restrictions given uncertainty with ceilings as the accumulating snow system spreads into the area after 18z. && .DMX WATCHES/WARNINGS/ADVISORIES... Winter Storm Watch from Saturday afternoon through Saturday evening for IAZ004>006-015-016-023>025-033>036-045>047. Winter Storm Watch from Saturday evening through late Saturday night for IAZ007-017-026-027-037>039-048>050-060>062. && DISCUSSION...Hagenhoff AVIATION...Ansorge
Hazardous weather outlook, Dec 5, 4:32 AM CST, 9 hours 15 minutes before
Hazardous Weather Outlook National Weather Service Des Moines IA 432 AM CST Fri Dec 5 2025 IAZ028-044-057>059-070>075-081>086-092>097-061045- Bremer-Crawford-Audubon-Guthrie-Dallas-Cass-Adair-Madison-Warren- Marion-Mahaska-Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor- Ringgold-Decatur-Wayne-Appanoose-Davis- 432 AM CST Fri Dec 5 2025 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Today and tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday A period of snow is expected from Saturday afternoon through Saturday night. Several inches of accumulation are possible, with the heaviest totals currently expected across northern Iowa. Travel impacts are likely into early Sunday morning. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed, however snowfall reports are always appreciated. IAZ004>007-015>017-023>027-033>039-045>050-060>062-061045- Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Butler-Sac-Calhoun-Webster- Hamilton-Hardin-Grundy-Black Hawk-Carroll-Greene-Boone-Story- Marshall-Tama-Polk-Jasper-Poweshiek- 432 AM CST Fri Dec 5 2025 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Today and tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday A Winter Storm Watch is in effect for the area. Several inches of accumulation are possible, with the heaviest totals currently expected across northern Iowa. Travel impacts are likely into early Sunday morning. Please refer to the National Weather Service website at weather.gov/desmoines for further details. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed, however snowfall reports are always appreciated. Hagenhoff
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 5, 3:03 AM CST | Winter Storm Watch | DMX | Black Hawk, Boone, Butler, Calhoun, Carroll, Cerro Gordo and 22 more | 11 hr |
| Dec 5, 1:47 PM CST | Winter Weather Advisory | DMX | Adair, Audubon, Boone, Bremer, Calhoun, Carroll and 20 more | 37 hr |
Nearby
Winter Storm Warnings in Iowa, 2025Every winter storm warning in 2025
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.