Alert archive / Iowa / Winter Weather Advisories in 2021
Winter Weather Advisory 7, NWS Des Moines, IA
NWS Des Moines, IA issued this winter weather advisory at Jan 29, 2021, 2:56 PM CST for 36 counties in Iowa. It took effect at Jan 30, 2021, 9:00 AM CST. It was in force for 24 hr.
The area
The counties it named.
The facts
- Issued
- Jan 29, 2021, 2:56 PM CST (20:56 UTC)
- In effect from
- Jan 30, 2021, 9:00 AM CST
- Expired
- Jan 31, 2021, 9:00 AM CST
- In force
- 24 hr
- Issued by
- NWS Des Moines, IA
All 36 counties
Adair County, IA, Black Hawk County, IA, Boone County, IA, Bremer County, IA, Butler County, IA, Calhoun County, IA, Carroll County, IA, Cerro Gordo 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), 65 km from the middle of the area, began a volume at 20:58 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 12:00Z, 8.9 hours before the alert went out and 249 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
- 690 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 171 m²/s²
- 0-3 km storm-relative helicity
- 210 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
924 WWUS43 KDMX 292056 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 256 PM CST Fri Jan 29 2021 ...Icy Conditions Saturday... .Expect areas of freezing drizzle or freezing rain to develop Saturday morning over central to northern Iowa. The freezing precipitation is likely to persist and even increase in intensity during the afternoon hours. There will be a period of a wintry mix of freezing rain and snow in the late afternoon into early evening hours before switching over to all snow. There is the potential for a tenth to a quarter of an inch of ice accrual over the northeast part of the state. This ice will not only cause hazardous travel conditions, but with the strong east winds, this may lead to tree limbs and power outages. IAZ027-028-038-039-050-300500- /O.UPG.KDMX.WS.A.0004.210130T2100Z-210131T1800Z/ /O.NEW.KDMX.WS.W.0003.210130T1500Z-210131T1500Z/ Butler-Bremer-Grundy-Black Hawk-Tama- Including the cities of Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Tama, Toledo, Traer, Dysart, and Gladbrook 256 PM CST Fri Jan 29 2021 ...WINTER STORM WARNING IN EFFECT FROM 9 AM SATURDAY TO 9 AM CST SUNDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 2 to 5 inches and ice accumulations of one tenth to two tenths of an inch. * WHERE...Northeast Iowa. * WHEN...From 9 AM Saturday to 9 AM CST Sunday. * IMPACTS...Plan on ice and snow covered roads. There is the potential for tree limb damage and power outages with the freezing rain potential and the strong winds. 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. && $$ IAZ037-049-300500- /O.NEW.KDMX.WS.W.0003.210130T1500Z-210131T1500Z/ Hardin-Marshall- Including the cities of Iowa Falls, Eldora, Ackley, and Marshalltown 256 PM CST Fri Jan 29 2021 ...WINTER STORM WARNING IN EFFECT FROM 9 AM SATURDAY TO 9 AM CST SUNDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 2 to 5 inches and ice accumulations of one tenth to two tenths of an inch. * WHERE...East central Iowa. * WHEN...From 9 AM Saturday to 9 AM CST Sunday. * IMPACTS...Plan on ice and snow covered roads. There is the potential for tree limb damage and power outages with the freezing rain potential and the strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ004-005-015-023-024-033>035-045-046-058-071-300500- /O.NEW.KDMX.WW.Y.0007.210130T1500Z-210131T1200Z/ Emmet-Kossuth-Palo Alto-Pocahontas-Humboldt-Sac-Calhoun-Webster- Carroll-Greene-Guthrie-Adair- Including the cities of Estherville, Algona, Emmetsburg, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Carroll, Jefferson, Guthrie Center, Panora, Bayard, Casey, Greenfield, Stuart, Adair, and Fontanelle 256 PM CST Fri Jan 29 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 AM SATURDAY TO 6 AM CST SUNDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to two inches and ice accumulations of around one tenth of an inch. * WHERE...West central to north central Iowa. * WHEN...From 9 AM Saturday to 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. Tree limb damage and power outages are possible with the freezing rain and strong winds. 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. && $$ IAZ006-007-016-017-025-026-036-047-048-059>062-072>075-300500- /O.NEW.KDMX.WW.Y.0007.210130T1500Z-210131T1500Z/ Winnebago-Worth-Hancock-Cerro Gordo-Wright-Franklin-Hamilton- Boone-Story-Dallas-Polk-Jasper-Poweshiek-Madison-Warren-Marion- Mahaska- Including the cities of Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Eagle Grove, Clarion, Belmond, Hampton, Webster City, Boone, Ames, Perry, Waukee, Adel, Des Moines, Newton, Grinnell, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, and Oskaloosa 256 PM CST Fri Jan 29 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 AM SATURDAY TO 9 AM CST SUNDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 1 to 3 inches and ice accumulations of around one tenth of an inch. * WHERE...Central to north central Iowa. * WHEN...From 9 AM Saturday to 9 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. Tree limb damage and power outages are possible with the freezing rain and strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Hagenhoff/Podrazik For more information from the National Weather Service visit https://weather.gov/desmoines
10 follow-up statements
116 WWUS43 KDMX 300245 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 845 PM CST Fri Jan 29 2021 ...Icy Conditions Saturday... .Expect areas of freezing drizzle or freezing rain to develop Saturday morning over central to northern Iowa. The freezing precipitation is likely to persist and even increase in intensity during the afternoon hours. There will be a period of a wintry mix of freezing rain and snow in the late afternoon into early evening hours before switching over to all snow. There is the potential for a tenth to a quarter of an inch of ice accrual over the northeast part of the state. This ice will not only cause hazardous travel conditions, but with the strong east winds, this may lead to tree limbs and power outages. IAZ027-028-037>039-049-050-301045- /O.CON.KDMX.WS.W.0003.210130T1500Z-210131T1500Z/ Butler-Bremer-Hardin-Grundy-Black Hawk-Marshall-Tama- Including the cities of 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, and Gladbrook 845 PM CST Fri Jan 29 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM SATURDAY TO 9 AM CST SUNDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 2 to 5 inches and ice accumulations of one tenth to two tenths of an inch. * WHERE...Northeast Iowa. * WHEN...From 9 AM Saturday to 9 AM CST Sunday. * IMPACTS...Plan on ice and snow covered roads. There is the potential for tree limb damage and power outages with the freezing rain potential and the strong winds. 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. && $$ IAZ004-005-015-023-024-033>035-045-046-058-071-301045- /O.CON.KDMX.WW.Y.0007.210130T1500Z-210131T1200Z/ Emmet-Kossuth-Palo Alto-Pocahontas-Humboldt-Sac-Calhoun-Webster- Carroll-Greene-Guthrie-Adair- Including the cities of Estherville, Algona, Emmetsburg, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Carroll, Jefferson, Guthrie Center, Panora, Bayard, Casey, Greenfield, Stuart, Adair, and Fontanelle 845 PM CST Fri Jan 29 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 AM SATURDAY TO 6 AM CST SUNDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to two inches and ice accumulations of around one tenth of an inch. * WHERE...West central to north central Iowa. * WHEN...From 9 AM Saturday to 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. Tree limb damage and power outages are possible with the freezing rain and strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ006-007-016-017-025-026-036-047-048-059>062-072>075-301045- /O.CON.KDMX.WW.Y.0007.210130T1500Z-210131T1500Z/ Winnebago-Worth-Hancock-Cerro Gordo-Wright-Franklin-Hamilton- Boone-Story-Dallas-Polk-Jasper-Poweshiek-Madison-Warren-Marion- Mahaska- Including the cities of Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Eagle Grove, Clarion, Belmond, Hampton, Webster City, Boone, Ames, Perry, Waukee, Adel, Des Moines, Newton, Grinnell, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, and Oskaloosa 845 PM CST Fri Jan 29 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 AM SATURDAY TO 9 AM CST SUNDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 1 to 3 inches and ice accumulations of around one tenth of an inch. * WHERE...Central to north central Iowa. * WHEN...From 9 AM Saturday to 9 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. Tree limb damage and power outages are possible with the freezing rain and strong winds. 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
543 WWUS43 KDMX 300509 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 1109 PM CST Fri Jan 29 2021 ...Icy Conditions Saturday... .Expect areas of freezing drizzle or freezing rain to develop Saturday morning over central to northern Iowa. The freezing precipitation is likely to persist and even increase in intensity during the afternoon hours. There will be a period of a wintry mix of freezing rain and snow in the late afternoon into early evening hours before switching over to all snow. There is the potential for a tenth to a quarter of an inch of ice accrual over the northeast part of the state. This ice will not only cause hazardous travel conditions, but with the strong east winds, this may lead to broken tree limbs and power outages. IAZ027-028-037>039-049-050-301315- /O.CON.KDMX.WS.W.0003.210130T1500Z-210131T1500Z/ Butler-Bremer-Hardin-Grundy-Black Hawk-Marshall-Tama- Including the cities of 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, and Gladbrook 1109 PM CST Fri Jan 29 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM SATURDAY TO 9 AM CST SUNDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 2 to 5 inches and ice accumulations of one tenth to two tenths of an inch. * WHERE...Northeast Iowa. * WHEN...From 9 AM Saturday to 9 AM CST Sunday. * IMPACTS...Plan on ice and snow covered roads. There is the potential for tree limb damage and power outages with the freezing rain potential and the strong winds. 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. && $$ IAZ004-005-015-023-024-033>035-045-046-058-071-301315- /O.CON.KDMX.WW.Y.0007.210130T1500Z-210131T1200Z/ Emmet-Kossuth-Palo Alto-Pocahontas-Humboldt-Sac-Calhoun-Webster- Carroll-Greene-Guthrie-Adair- Including the cities of Estherville, Algona, Emmetsburg, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Carroll, Jefferson, Guthrie Center, Panora, Bayard, Casey, Greenfield, Stuart, Adair, and Fontanelle 1109 PM CST Fri Jan 29 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 AM SATURDAY TO 6 AM CST SUNDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to two inches and ice accumulations of around one tenth of an inch. * WHERE...West central to north central Iowa. * WHEN...From 9 AM Saturday to 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. Tree limb damage and power outages are possible with the freezing rain and strong winds. 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. && $$ IAZ006-007-016-017-025-026-036-047-048-059>062-072>075-301315- /O.CON.KDMX.WW.Y.0007.210130T1500Z-210131T1500Z/ Winnebago-Worth-Hancock-Cerro Gordo-Wright-Franklin-Hamilton- Boone-Story-Dallas-Polk-Jasper-Poweshiek-Madison-Warren-Marion- Mahaska- Including the cities of Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Eagle Grove, Clarion, Belmond, Hampton, Webster City, Boone, Ames, Perry, Waukee, Adel, Des Moines, Newton, Grinnell, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, and Oskaloosa 1109 PM CST Fri Jan 29 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 AM SATURDAY TO 9 AM CST SUNDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 1 to 3 inches and ice accumulations of around one tenth of an inch. * WHERE...Central to north central Iowa. * WHEN...From 9 AM Saturday to 9 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. Tree limb damage and power outages are possible with the freezing rain and strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
003 WWUS43 KDMX 300956 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 356 AM CST Sat Jan 30 2021 ...Icy to Snowy Conditions Today through Sunday Morning... .Expect areas of freezing rain or drizzle to develop this morning over central to northern Iowa. The freezing precipitation is likely to persist and even increase in intensity during the afternoon hours, especially along and north of Highway 30. There will be a period of a wintry mix of freezing rain and snow late afternoon into early evening hours before switching over to all snow. There is the potential for a tenth to a quarter of an inch of ice accrual over northern portions of the state. This ice will not only cause hazardous travel conditions, but with the breezy east winds, may also lead to damaged tree limbs and power lines. IAZ027-028-037>039-049-050-301800- /O.CON.KDMX.WS.W.0003.210130T1500Z-210131T1500Z/ Butler-Bremer-Hardin-Grundy-Black Hawk-Marshall-Tama- Including the cities of 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, and Gladbrook 356 AM CST Sat Jan 30 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 AM CST SUNDAY... * WHAT...Mixed precipitation expected. Total ice accumulations of one tenth to two tenths of an inch, mainly during daylight hours. Total snow accumulations of 2 to 5 inches, mainly during the evening and overnight. * WHERE...Northeast Iowa. * WHEN...From 9 AM Saturday to 9 AM CST Sunday. * IMPACTS...Plan on ice and snow covered roads. Tree limb damage and power outages will be possible with the freezing rain and breezy winds. 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. && $$ IAZ004-005-015-023-024-033>035-045-046-058-071-301800- /O.CON.KDMX.WW.Y.0007.210130T1500Z-210131T1200Z/ Emmet-Kossuth-Palo Alto-Pocahontas-Humboldt-Sac-Calhoun-Webster- Carroll-Greene-Guthrie-Adair- Including the cities of Estherville, Algona, Emmetsburg, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Carroll, Jefferson, Guthrie Center, Panora, Bayard, Casey, Greenfield, Stuart, Adair, and Fontanelle 356 AM CST Sat Jan 30 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 6 AM CST SUNDAY... * WHAT...Mixed precipitation expected. Total ice accumulations up to around one tenth of an inch, mainly during daylight hours. Total snow accumulations of up to two inches, mainly during the evening and overnight. * WHERE...West central to north central Iowa. * WHEN...From 9 AM Saturday to 6 AM CST Sunday. * IMPACTS...Plan on slick road conditions at times. Tree limb damage and power outages will be possible with the freezing rain and breezy winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ006-007-016-017-025-026-036-047-048-059>062-072>075-301800- /O.CON.KDMX.WW.Y.0007.210130T1500Z-210131T1500Z/ Winnebago-Worth-Hancock-Cerro Gordo-Wright-Franklin-Hamilton- Boone-Story-Dallas-Polk-Jasper-Poweshiek-Madison-Warren-Marion- Mahaska- Including the cities of Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Eagle Grove, Clarion, Belmond, Hampton, Webster City, Boone, Ames, Perry, Waukee, Adel, Des Moines, Newton, Grinnell, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, and Oskaloosa 356 AM CST Sat Jan 30 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 AM CST SUNDAY... * WHAT...Mixed precipitation expected. Total ice accumulations up to around one tenth of an inch, mainly during daylight hours. Total snow accumulations of 1 to 3 inches, mainly during the evening and overnight. * WHERE...Central to north central Iowa. * WHEN...From 9 AM Saturday to 9 AM CST Sunday. * IMPACTS...Plan on slick road conditions at times. Tree limb damage and power outages will be possible with the freezing rain and breezy winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines CURTIS
889 WWUS43 KDMX 301631 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 1031 AM CST Sat Jan 30 2021 ...Icy Then Snowy Conditions Today through Sunday Morning... .Areas of light freezing rain will develop this afternoon, mainly north of Highway 30. The precipitation will then become mixed this evening before switching over to snow tonight. There is the potential for a tenth to a quarter of an inch of ice accrual in some areas before the change to snow, which would result in hazardous travel conditions and perhaps spotty power outages. IAZ027-028-037>039-049-050-310045- /O.CON.KDMX.WS.W.0003.000000T0000Z-210131T1500Z/ Butler-Bremer-Hardin-Grundy-Black Hawk-Marshall-Tama- Including the cities of Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, Traer, Dysart, and Gladbrook 1031 AM CST Sat Jan 30 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST SUNDAY... * WHAT...Mixed precipitation expected. Total ice accumulations of one tenth to two tenths of an inch, mainly this afternoon. Total snow accumulations of 2 to 5 inches, mainly tonight. * WHERE...Northeast Iowa. * WHEN...Through 9 AM CST Sunday. * IMPACTS...Plan on ice and snow covered roads. Tree limb damage and power outages may be possible with the freezing rain and breezy winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ004-005-015-023-024-033>035-045-046-058-071-310045- /O.CON.KDMX.WW.Y.0007.000000T0000Z-210131T1200Z/ Emmet-Kossuth-Palo Alto-Pocahontas-Humboldt-Sac-Calhoun-Webster- Carroll-Greene-Guthrie-Adair- Including the cities of Estherville, Algona, Emmetsburg, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Carroll, Jefferson, Guthrie Center, Panora, Bayard, Casey, Greenfield, Stuart, Adair, and Fontanelle 1031 AM CST Sat Jan 30 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY... * WHAT...Mixed precipitation expected. Total ice accumulations around a tenth of an inch or less, mainly this afternoon. Total snow accumulations of up to two inches, mainly tonight. * WHERE...West central to north central Iowa. * WHEN...Through 6 AM CST Sunday. * IMPACTS...Plan on slick road conditions at times. Tree limb damage and power outages may be possible with the freezing rain and breezy winds. 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. && $$ IAZ006-007-016-017-025-026-036-047-048-059>062-072>075-310045- /O.CON.KDMX.WW.Y.0007.000000T0000Z-210131T1500Z/ Winnebago-Worth-Hancock-Cerro Gordo-Wright-Franklin-Hamilton- Boone-Story-Dallas-Polk-Jasper-Poweshiek-Madison-Warren-Marion- Mahaska- Including the cities of Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Eagle Grove, Clarion, Belmond, Hampton, Webster City, Boone, Ames, Perry, Waukee, Adel, Des Moines, Newton, Grinnell, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, and Oskaloosa 1031 AM CST Sat Jan 30 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST SUNDAY... * WHAT...Mixed precipitation expected. Total ice accumulations around a tenth of an inch or less, mainly this afternoon. Total snow accumulations of 1 to 3 inches, mainly tonight. * WHERE...Central to north central Iowa. * WHEN...Through 9 AM CST Sunday. * IMPACTS...Plan on slick road conditions at times. Tree limb damage and power outages may be possible with the freezing rain and breezy winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
965 WWUS43 KDMX 302048 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 248 PM CST Sat Jan 30 2021 ...Icy Then Snowy This Evening Through Sunday Morning... .Light freezing rain will persist across much of northern Iowa through this evening, mainly north of Highway 30, resulting in areas of very slick road conditions. After dark tonight the rain will change over to snow, with light to moderate accumulations forecast and continued hazardous travel conditions. IAZ027-028-037>039-049-050-310500- /O.CON.KDMX.WS.W.0003.000000T0000Z-210131T1500Z/ Butler-Bremer-Hardin-Grundy-Black Hawk-Marshall-Tama- Including the cities of 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, and Gladbrook 248 PM CST Sat Jan 30 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST SUNDAY... * WHAT...Mixed precipitation, initially light freezing rain then changing to snow tonight. Ice accumulations around a tenth of an inch through this evening. Total snow accumulations of 2 to 5 inches tonight into Sunday. * WHERE...Northeast Iowa. * WHEN...Through 9 AM CST Sunday. * IMPACTS...Plan on ice and snow covered roads and dangerous travel conditions at times. 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. && $$ IAZ004-005-015-023-024-033>035-045-046-058-071-310500- /O.CON.KDMX.WW.Y.0007.000000T0000Z-210131T1200Z/ Emmet-Kossuth-Palo Alto-Pocahontas-Humboldt-Sac-Calhoun-Webster- Carroll-Greene-Guthrie-Adair- Including the cities of Estherville, Algona, Emmetsburg, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Carroll, Jefferson, Guthrie Center, Panora, Bayard, Casey, Greenfield, Stuart, Adair, and Fontanelle 248 PM CST Sat Jan 30 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY... * WHAT...Mixed precipitation, initially light freezing rain then changing to snow tonight. Ice accumulations less a tenth of an inch through this evening. Total snow accumulations of up to 2 inches tonight into Sunday. * WHERE...Parts of west central to north central Iowa. * WHEN...Through 6 AM CST Sunday. * IMPACTS...Ice and snow covered roads in some areas, resulting in hazardous travel conditions at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ006-007-016-017-025-026-036-047-048-059>062-072>075-310500- /O.CON.KDMX.WW.Y.0007.000000T0000Z-210131T1500Z/ Winnebago-Worth-Hancock-Cerro Gordo-Wright-Franklin-Hamilton- Boone-Story-Dallas-Polk-Jasper-Poweshiek-Madison-Warren-Marion- Mahaska- Including the cities of Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Eagle Grove, Clarion, Belmond, Hampton, Webster City, Boone, Ames, Perry, Waukee, Adel, Des Moines, Newton, Grinnell, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, and Oskaloosa 248 PM CST Sat Jan 30 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST SUNDAY... * WHAT...Mixed precipitation, initially light freezing rain then changing to snow tonight. Ice accumulations less a tenth of an inch through this evening. Total snow accumulations of up to 2 inches tonight into Sunday. * WHERE...Parts of north central, central, and eastern Iowa. * WHEN...Through 9 AM CST Sunday. * IMPACTS...Ice and snow covered roads in some areas, resulting in hazardous travel conditions at 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. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
608 WWUS43 KDMX 310246 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 846 PM CST Sat Jan 30 2021 ...Ice Changing to Snow into Sunday Morning... .Areas of light freezing drizzle and freezing rain look to persist over portions of western to northern Iowa. The precipitation has begun to switch over to snow over the eastern portions of Iowa. Many roads remain icy and hazardous to travel on late tonight and the conditions will persist into the overnight hours. IAZ027-028-037>039-049-050-311100- /O.CON.KDMX.WS.W.0003.000000T0000Z-210131T1500Z/ Butler-Bremer-Hardin-Grundy-Black Hawk-Marshall-Tama- Including the cities of Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, Traer, Dysart, and Gladbrook 846 PM CST Sat Jan 30 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST SUNDAY... * WHAT...Areas of freezing drizzle look to switch to snow late tonight. Ice accumulations around a tenth of an inch through this evening. Total snow accumulations of 2 to 5 inches by Sunday morning. * WHERE...Northeast Iowa. * WHEN...Through 9 AM CST Sunday. * IMPACTS...Plan on icy and snow covered roads and dangerous travel conditions through the overnight hours. Some isolated power outages may occur from the ice accumulation on tree limbs and power lines. Low visibility is likely at times due to the falling snow or freezing drizzle. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ004-005-015-023-024-033>035-045-046-058-071-311100- /O.CON.KDMX.WW.Y.0007.000000T0000Z-210131T1200Z/ Emmet-Kossuth-Palo Alto-Pocahontas-Humboldt-Sac-Calhoun-Webster- Carroll-Greene-Guthrie-Adair- Including the cities of Estherville, Algona, Emmetsburg, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Carroll, Jefferson, Guthrie Center, Panora, Bayard, Casey, Greenfield, Stuart, Adair, and Fontanelle 846 PM CST Sat Jan 30 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY... * WHAT...Areas of light freezing drizzle look to continue through the late night hours before switching to snow. A light glaze has already occurred and an additional few hundredths of an inch are possible. Total snow accumulations of up to 2 inches are possible by Sunday morning. * WHERE...Parts of west central to north central Iowa. * WHEN...Through 6 AM CST Sunday. * IMPACTS...Icy roads have already been reported tonight. Expect icy then snow covered roads into Sunday morning leading to dangerous travel conditions. In addition, with the light freezing drizzle, visibility will be reduced at 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. && $$ IAZ006-007-016-017-025-026-036-047-048-059>062-072>075-311100- /O.CON.KDMX.WW.Y.0007.000000T0000Z-210131T1500Z/ Winnebago-Worth-Hancock-Cerro Gordo-Wright-Franklin-Hamilton- Boone-Story-Dallas-Polk-Jasper-Poweshiek-Madison-Warren-Marion- Mahaska- Including the cities of Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Eagle Grove, Clarion, Belmond, Hampton, Webster City, Boone, Ames, Perry, Waukee, Adel, Des Moines, Newton, Grinnell, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, and Oskaloosa 846 PM CST Sat Jan 30 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST SUNDAY... * WHAT...Areas of light freezing drizzle look to continue through the late night hours before switching to snow. A light glaze has already occurred and an additional few hundredths of an inch are possible. Total snow accumulations of up to 2 inches are possible by Sunday morning. * WHERE...Parts of north central, central, and eastern Iowa. * WHEN...Through 9 AM CST Sunday. * IMPACTS...Icy roads have already been reported tonight. Expect icy then snow covered roads into Sunday morning leading to dangerous travel conditions. In addition, with the light freezing drizzle, visibility will be reduced at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
791 WWUS43 KDMX 310731 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 131 AM CST Sun Jan 31 2021 ...Freezing Drizzle to Light Snow into Sunday Morning... .Areas of light freezing drizzle look to persist a bit longer over portions of western to northern Iowa tonight. Elsewhere, precipitation has switched over to snow over the central and eastern portions of Iowa. Many roads remain icy and or snow covered and hazardous to travel on and the conditions will persist into Sunday morning. IAZ027-028-037>039-049-050-311500- /O.CAN.KDMX.WS.W.0003.000000T0000Z-210131T1500Z/ /O.EXA.KDMX.WW.Y.0007.000000T0000Z-210131T1500Z/ Butler-Bremer-Hardin-Grundy-Black Hawk-Marshall-Tama- Including the cities of 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, and Gladbrook 131 AM CST Sun Jan 31 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Freezing drizzle and light snow. An additional light glazing of ice and snowfall up to two inches. * WHERE...Portions of northeast Iowa. * WHEN...Until 9 AM CST this morning. * IMPACTS...Roads are expected to remain slick and hazardous due to a glazing of ice and or snow cover, especially along untreated or rural roadways. Visibilities may also fall under 1 mile at 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. && $$ IAZ004-005-015-023-024-033>035-045-046-058-071-311200- /O.CON.KDMX.WW.Y.0007.000000T0000Z-210131T1200Z/ Emmet-Kossuth-Palo Alto-Pocahontas-Humboldt-Sac-Calhoun-Webster- Carroll-Greene-Guthrie-Adair- Including the cities of Estherville, Algona, Emmetsburg, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Carroll, Jefferson, Guthrie Center, Panora, Bayard, Casey, Greenfield, Stuart, Adair, and Fontanelle 131 AM CST Sun Jan 31 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING... * WHAT...Freezing drizzle and light snow. An additional light glazing of ice and light dusting of snow. * WHERE...Parts of west central to north central Iowa. * WHEN...Through 6 AM CST Sunday. * IMPACTS...Roads are expected to remain slick and hazardous due to a glazing of ice and or snow cover, especially along untreated or rural roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ006-007-016-017-025-026-036-047-048-059>062-072>075-311500- /O.CON.KDMX.WW.Y.0007.000000T0000Z-210131T1500Z/ Winnebago-Worth-Hancock-Cerro Gordo-Wright-Franklin-Hamilton- Boone-Story-Dallas-Polk-Jasper-Poweshiek-Madison-Warren-Marion- Mahaska- Including the cities of Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Eagle Grove, Clarion, Belmond, Hampton, Webster City, Boone, Ames, Perry, Waukee, Adel, Des Moines, Newton, Grinnell, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, and Oskaloosa 131 AM CST Sun Jan 31 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Freezing drizzle and light snow. An additional light glazing of ice and snowfall up to around an inch. * WHERE...Parts of north central, central, and eastern Iowa. * WHEN...Through 9 AM CST Sunday. * IMPACTS...Roads are expected to remain slick and hazardous due to a glazing of ice and or snow cover, especially along untreated or rural roadways. 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. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
949 WWUS43 KDMX 311025 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 425 AM CST Sun Jan 31 2021 ...Freezing Drizzle to Light Snow Winding Down this Morning... .Areas of light freezing drizzle and snow will continue to wind down and slide eastward this morning. Areas east of Interstate 35 will continue to see periods of light freezing drizzle and light snow this morning, resulting in a potential additional glaze of ice and snow accumulations under an inch. IAZ004-005-015-023-024-033>035-045-046-058-071-311130- /O.CAN.KDMX.WW.Y.0007.000000T0000Z-210131T1200Z/ Emmet-Kossuth-Palo Alto-Pocahontas-Humboldt-Sac-Calhoun-Webster- Carroll-Greene-Guthrie-Adair- Including the cities of Estherville, Algona, Emmetsburg, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Carroll, Jefferson, Guthrie Center, Panora, Bayard, Casey, Greenfield, Stuart, Adair, and Fontanelle 425 AM CST Sun Jan 31 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Light freezing drizzle and snow have moved east of the area and roadways have improved overnight in large part due to state and local road crews. Therefore, the advisory has been cancelled for the area. $$ IAZ006-016-025-036-047-059-072-311130- /O.CAN.KDMX.WW.Y.0007.000000T0000Z-210131T1500Z/ Winnebago-Hancock-Wright-Hamilton-Boone-Dallas-Madison- Including the cities of Forest City, Lake Mills, Garner, Britt, Kanawha, Eagle Grove, Clarion, Belmond, Webster City, Boone, Perry, Waukee, Adel, Winterset, and Earlham 425 AM CST Sun Jan 31 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Light freezing drizzle and snow have moved east of the area and roadways have improved overnight in large part due to state and local road crews. Therefore, the advisory has been cancelled for the area. $$ IAZ007-017-026>028-037>039-048>050-060>062-073>075-311500- /O.CON.KDMX.WW.Y.0007.000000T0000Z-210131T1500Z/ Worth-Cerro Gordo-Franklin-Butler-Bremer-Hardin-Grundy-Black Hawk- Story-Marshall-Tama-Polk-Jasper-Poweshiek-Warren-Marion-Mahaska- Including the cities of Northwood, Manly, Mason City, Clear Lake, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Ames, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Des Moines, Newton, Grinnell, Indianola, Norwalk, Carlisle, Pella, Knoxville, and Oskaloosa 425 AM CST Sun Jan 31 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Light freezing drizzle and light snow. An additional light glazing of ice and snowfall up to one inch. * WHERE...Portions of central, eastern, and northeast Iowa. * WHEN...Until 9 AM CST this morning. * IMPACTS...Roads are expected to remain slick and hazardous due to a glazing of ice and or snow cover, especially along untreated or rural roadways. Visibilities may also fall under 1 mile at times due to the combination of wind and snowfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines CURTIS
623 WWUS43 KDMX 311204 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 604 AM CST Sun Jan 31 2021 ...Freezing Drizzle to Light Snow Winding Down this Morning... .Areas of light freezing drizzle and snow will continue to wind down and slide eastward this morning. Areas east of Interstate 35 will continue to see periods of light freezing drizzle and light snow this morning, resulting in a potential additional glaze of ice and snow accumulations under an inch. IAZ007-017-026-037-048-060-073-311315- /O.CAN.KDMX.WW.Y.0007.000000T0000Z-210131T1500Z/ Worth-Cerro Gordo-Franklin-Hardin-Story-Polk-Warren- Including the cities of Northwood, Manly, Mason City, Clear Lake, Hampton, Iowa Falls, Eldora, Ackley, Ames, Des Moines, Indianola, Norwalk, and Carlisle 604 AM CST Sun Jan 31 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Patchy freezing drizzle and light snow may still create some slick roads this morning, but no additional accumulations are expected. The advisory has been cancelled along Interstate 35. $$ IAZ027-028-038-039-049-050-061-062-074-075-311500- /O.CON.KDMX.WW.Y.0007.000000T0000Z-210131T1500Z/ Butler-Bremer-Grundy-Black Hawk-Marshall-Tama-Jasper-Poweshiek- Marion-Mahaska- Including the cities of Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Newton, Grinnell, Pella, Knoxville, and Oskaloosa 604 AM CST Sun Jan 31 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Light freezing drizzle and light snow. An additional light glazing of ice and snowfall up to one inch. * WHERE...Portions of central, eastern, and northeast Iowa. * WHEN...Until 9 AM CST this morning. * IMPACTS...Roads are expected to remain slick and hazardous due to a glazing of ice and or snow cover, especially along untreated or rural roadways. Visibilities may also fall under 1 mile at times due to the combination of wind and snowfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/desmoines
544 WWUS43 KDMX 311454 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 854 AM CST Sun Jan 31 2021 ...Winter Weather Advisory Has Expired But Slick Travel Conditions Will Linger... .Light snow will continue across the area this morning, and while any additional accumulation will be low, it will take time for travel conditions to slowly improve today, especially on secondary roads. IAZ027-028-038-039-049-050-061-062-074-075-311600- /O.EXP.KDMX.WW.Y.0007.000000T0000Z-210131T1500Z/ Butler-Bremer-Grundy-Black Hawk-Marshall-Tama-Jasper-Poweshiek- Marion-Mahaska- Including the cities of Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Newton, Grinnell, Pella, Knoxville, and Oskaloosa 854 AM CST Sun Jan 31 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 9 AM CST THIS MORNING... Light freezing rain and moderate snowfall were observed across the area, resulting in hazardous travel conditions from late Saturday through early Sunday morning. Light snow continues to fall and while additional accumulations will be low, it will take some time for road conditions to very slowly improve today. Please continue to exercise caution if taking to the roads. $$ For more information from the National Weather Service visit https://weather.gov/desmoines
What forecasters said that day
The local office's own words before this winter weather advisory 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 weather advisory went out at Jan 29, 2:56 PM CST, 0 minutes earlier.
Area forecast discussion, Jan 29, 2:56 PM CST, 0 minutes before
Area Forecast Discussion National Weather Service Des Moines IA 256 PM CST Fri Jan 29 2021 .DISCUSSION.../Tonight through Friday/ Issued at 256 PM CST Fri Jan 29 2021 Southeast winds today have helped to increase warm air advection across the state this afternoon with portions of central and southern Iowa climbing into the mid to upper 30s by 2 pm. This has also aided moisture transport into the area out of the gulf, which has allowed cloud cover to steadily increase through out the day. Meanwhile low pressure has been building to the west off the Rockies and into the Plains. Initial isentropic lift across the area in the overnight hours and early Saturday morning will result in a freezing drizzle situation across portions of western Iowa. Model soundings indicate appreciable low level moisture with surface temperatures below freezing, show a classic freezing drizzle setup. As the main system arrive kinematic lift will increase with precipitation expanding across Iowa though Saturday morning. The freezing line bisects the state, making for a very messy and nuanced precipitation type forecast throughout the day. Right now data indicates that areas roughly along and south of I-80 will see mostly rain to start, though some minor freezing rain/drizzle will be possible. North of I-80 expect to see more freezing rain through the afternoon. By late afternoon into early evening a gradual transition over to snow will occur, with snow lingering overnight and ending from west to east on Sunday morning. Models continue to vary, significantly in some cases, which increase the difficulty of an already challenging weather scenario. Overall the GFS and Euro show a similar synoptic progression of the cyclone aloft as it moves across the midwest, and QPF and 2m temperatures are also very similar. Differences lie aloft, where the GFS favors a stronger warm nose that is strong enough to put a damper on snow accumulations. Though the 12z GFS was cooler than the 06z run, snow accumulations are still generally in the 1-3 inch range over the NE quadrant of the state. Meanwhile, the Euro continues to favor a colder solution with a swath of moderate to heavy snow across central to eastern Iowa. Hi resolution models appear split between the two solutions and hit harder on the mix precipitation types, including ice accumulation. The HREF is particularly robust is with ice accumulations, though those are likely overdone in areal coverage. Soundings are tricky, with many models favoring a deep isothermal layer on either side of freezing. Minor temperatures changes, including any wet bulb effects due to latent heat release with rain falling on snow pack, could have pretty big impacts on precipitation type and subsequent accumulations. Based on synoptic and hires sounding and plane view data, have opted for a scenario that favors more ice accumulation central and north with snow central and east. A wild card as this storm plays out will be the deep snow pack and how it modifies the boundary layer, influencing precipitation type. Right now the forecast reflects a widespread 1 to 3 inches of snow with a tenth or less of ice accumulation central and north within a winter weather advisory. Towards east-central Iowa 2 to 4 inches of snow and a tenth to perhaps a quarter inch of ice accumulation is possible. The mix of higher ice and snow accumulations could be particularly hazardous which is why a winter storm warning has been issued for that area. Western ridging will help to kick this system out of the area and enhance warm air advection into the area for the first half of next week. By late next week another robust system is expected to roll through the area, however there is still considerable uncertainty in how that system will evolve based on the current system progression. Will be worth monitoring in the coming days as the system gets closer. && .AVIATION.../For the 18Z TAFS through 18Z Saturday afternoon/ Issued at 1136 AM CST Fri Jan 29 2021 MVFR stratus across the north will expand across the area through the evening. By Saturday morning sites will drop to IFR or even LIFR categories with decreasing cigs and visibility restrictions due to falling precipitation. An initial wintry mix Saturday will transition over to mainly snow Saturday evening beyond the current period. && .DMX WATCHES/WARNINGS/ADVISORIES... Winter Weather Advisory from 9 AM Saturday to 9 AM CST Sunday for IAZ006-007-016-017-025-026-036-047-048-059>062-072>075. Winter Storm Warning from 9 AM Saturday to 9 AM CST Sunday for IAZ027-028-037>039-049-050. Winter Weather Advisory from 9 AM Saturday to 6 AM CST Sunday for IAZ004-005-015-023-024-033>035-045-046-058-071. && DISCUSSION...Hagenhoff AVIATION...Hagenhoff
Hazardous weather outlook, Jan 29, 3:04 AM CST, 11 hours 52 minutes before
Hazardous Weather Outlook National Weather Service Des Moines IA 304 AM CST Fri Jan 29 2021 IAZ004>007-015>017-023>026-033>037-044>049-057>062-070>075- 081>086-092>097-300915- Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Sac-Calhoun-Webster-Hamilton- Hardin-Crawford-Carroll-Greene-Boone-Story-Marshall-Audubon- Guthrie-Dallas-Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren- Marion-Mahaska-Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor- Ringgold-Decatur-Wayne-Appanoose-Davis- 304 AM CST Fri Jan 29 2021 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 Another winter storm will impact Iowa Saturday into Sunday. Rain, snow, and wintry mixes will accompany this system. Light to moderate snowfall and light ice accumulations will be possible and may cause hazardous travel at times. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed but any reports of snow Saturday into Sunday would be appreciated. IAZ027-028-038-039-050-300915- Butler-Bremer-Grundy-Black Hawk-Tama- 304 AM CST Fri Jan 29 2021 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 this weekend. Please refer to the National Weather Service Des Moines website at weather.gov/desmoines for more details. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed but any reports of snow Saturday into Sunday would be appreciated.
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 29, 2:56 AM CST | Winter Storm Watch | DMX | Black Hawk, Bremer, Butler, Grundy, Tama | 12 hr |
| Jan 29, 2:56 PM CST | Winter Storm Warning | DMX | Black Hawk, Bremer, Butler, Grundy, Hardin, Marshall and 1 more | 35 hr |
Nearby
Winter Weather Advisories in Iowa, 2021Every winter weather advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.