Alert archive / Iowa / Winter Storm Warnings in 2018
Winter Storm Warning 11, NWS Des Moines, IA
NWS Des Moines, IA issued this winter storm warning at Nov 30, 2018, 3:18 PM CST for 13 counties in Iowa. It took effect at Dec 1, 2018, 3:00 AM CST. It was in force for 33 hr. 18 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
- Nov 30, 2018, 3:18 PM CST (21:18 UTC)
- In effect from
- Dec 1, 2018, 3:00 AM CST
- Expired
- Dec 2, 2018, 12:00 PM CST
- In force
- 33 hr
- Issued by
- NWS Des Moines, IA
Counties Audubon County, IA, Carroll County, IA, Cass County, IA, Cerro Gordo County, IA, Crawford County, IA, Emmet County, IA, Hancock County, IA, Humboldt County, IA, Kossuth County, IA, Palo Alto County, IA, Pocahontas County, IA, Winnebago County, IA, Worth County, IA
The radar
The Des Moines radar (KDMX), 120 km from the middle of the area, began a volume at 21:24 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 1, 11:15 AM CST | FREEZING RAIN 0.1 | Humboldt, IA | VIA SOCIAL MEDIA. ICE AND GUSTY WINDS RESULTED IN 6-7 LARGE BRANCHES FALLING FROM TREES. |
| Dec 1, 12:15 PM CST | SNOW 2.5 | Emmetsburg, IA | VIA SOCIAL MEDIA. |
| Dec 2, 2:30 AM CST | SNOW 2 | Audubon, IA | |
| Dec 2, 2:30 AM CST | SNOW 3 | Denison, IA | |
| Dec 2, 2:30 AM CST | SNOW 5 | Carroll, IA | |
| Dec 2, 5:06 AM CST | SNOW 1.5 | 1 Nne Mason City, IA | |
| Dec 2, 6:56 AM CST | SNOW 2.5 | 1 Nnw Clear Lake, IA | |
| Dec 2, 7:00 AM CST | SNOW 2 | Mason City, IA | 24 HOUR TOTAL. |
| Dec 2, 7:00 AM CST | SNOW 2 | Massena, IA | |
| Dec 2, 7:00 AM CST | SNOW 2.2 | 5 Ssw Rodman, IA | 24 HOUR TOTAL. |
| Dec 2, 7:00 AM CST | SNOW 2.7 | Garner, IA | 24 HOUR TOTAL. |
| Dec 2, 7:00 AM CST | SNOW 4 | 1 Ese Carroll, IA | 24 HOUR TOTAL. |
| Dec 2, 7:00 AM CST | SNOW 5.2 | Manning, IA | 24 HOUR TOTAL. |
| Dec 2, 7:00 AM CST | SNOW 7.8 | 4 Wnw Swea City, IA | 24 HOUR TOTAL. |
| Dec 2, 8:00 AM CST | SNOW 1.6 | 2 Nne Atlantic, IA | 24 HOUR TOTAL. |
| Dec 2, 8:00 AM CST | SNOW 2.8 | 1 Sse Audubon, IA | |
| Dec 2, 8:00 AM CST | SNOW 3 | 2 Ne Denison, IA | 24 HOUR TOTAL. |
| Dec 2, 8:12 AM CST | SNOW 2.5 | Garner, IA | TRAINED SPOTTER IN GARNER MEASURED 2.5 INCHES OF SNOW. 0.80 INCHES MELTED EQUIVALENT. REPORT VIA SOCIAL MEDIA. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 9.3 hours before the alert went out and 227 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
- 679 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 225 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
850 WWUS43 KDMX 302118 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 318 PM CST Fri Nov 30 2018 ...Prolonged Winter Precipitation This Weekend... .A winter storm system will impact Iowa from tonight into Sunday, spreading rain, ice, and snow across the state. Precipitation will begin from south to north as light rain and freezing rain tonight, then change to snow from northwest to southeast on Saturday afternoon and Saturday night before ending late Sunday. Moderate to heavy snow accumulations are possible over northern Iowa west of Interstate 35. The snow may initially be very heavy and wet and may cause tree damage and subsequent power outages. In addition, gusty northeast winds will cause areas of blowing snow that will reduce visibility. This wind also may enhance the potential for tree damage where the heavy and wet snow occurs. IAZ004>007-015>017-023-024-010530- /O.UPG.KDMX.WS.A.0011.181201T0300Z-181202T1800Z/ /O.NEW.KDMX.WS.W.0011.181201T0900Z-181202T1800Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, and Humboldt 318 PM CST Fri Nov 30 2018 ...WINTER STORM WARNING IN EFFECT FROM 3 AM SATURDAY TO NOON CST SUNDAY... * WHAT...Heavy snow and blowing snow expected, with light freezing rain also possible. Total snow accumulations of 5 to 8 inches and ice accumulations of a light glaze expected. Winds gusting as high as 35 mph at times. * WHERE...Northern Iowa, especially west of Interstate 35 and north of Highway 20. * WHEN...From 3 AM Saturday to noon CST Sunday. Light freezing rain possible early Saturday morning, with snow likely by Saturday afternoon and into Sunday. * ADDITIONAL DETAILS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Tree damage and power outages are also possible with the strong winds and heavy, wet snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ025>028-010530- /O.UPG.KDMX.WS.A.0011.181201T0300Z-181202T1800Z/ /O.NEW.KDMX.WW.Y.0027.181201T0300Z-181201T1400Z/ Wright-Franklin-Butler-Bremer- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, and Waverly 318 PM CST Fri Nov 30 2018 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 8 AM CST SATURDAY... * WHAT...Light freezing rain expected, with accumulations of a light glaze leading to some slick roads. * WHERE...Parts of west central into north central Iowa. * WHEN...From 9 PM this evening to 8 AM CST Saturday. * ADDITIONAL DETAILS...A light glaze will form on some roadways and elevated surfaces. Patchy road icing could lead to hazardous travel conditions at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. Expect slippery roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ033>037-044>046-010530- /O.UPG.KDMX.WS.A.0011.181201T0000Z-181202T1800Z/ /O.NEW.KDMX.WW.Y.0027.181201T0300Z-181201T1400Z/ Sac-Calhoun-Webster-Hamilton-Hardin-Crawford-Carroll-Greene- Including the cities of Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Denison, Carroll, and Jefferson 318 PM CST Fri Nov 30 2018 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 8 AM CST SATURDAY... * WHAT...Light freezing rain expected, with accumulations of a light glaze leading to some slick roads. * WHERE...Parts of west central into north central Iowa. * WHEN...From 9 PM this evening to 8 AM CST Saturday. * ADDITIONAL DETAILS...A light glaze will form on some roadways and elevated surfaces. Patchy road icing could lead to hazardous travel conditions at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. Expect slippery roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ038-047>049-057-058-010530- /O.NEW.KDMX.WW.Y.0027.181201T0300Z-181201T1400Z/ Grundy-Boone-Story-Marshall-Audubon-Guthrie- Including the cities of Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Boone, Ames, Marshalltown, Audubon, Exira, Guthrie Center, Panora, Bayard, and Casey 318 PM CST Fri Nov 30 2018 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 8 AM CST SATURDAY... * WHAT...Light freezing rain expected, with accumulations of a light glaze leading to some slick roads. * WHERE...Parts of west central into north central Iowa. * WHEN...From 9 PM this evening to 8 AM CST Saturday. * ADDITIONAL DETAILS...A light glaze will form on some roadways and elevated surfaces. Patchy road icing could lead to hazardous travel conditions at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of freezing rain will cause travel difficulties. Expect slippery roads. Slow down and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://www.weather.gov/desmoines
11 follow-up statements
381 WWUS43 KDMX 010348 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 948 PM CST Fri Nov 30 2018 ...Prolonged Winter Precipitation This Weekend... .A winter storm system will impact Iowa from tonight into Sunday, spreading rain, freezing rain, and snow across the state. Precipitation will begin from south to north as light rain and freezing rain tonight, then change to snow from northwest to southeast on Saturday afternoon and Saturday night before ending late Sunday. Moderate to heavy snow accumulations are possible over northern Iowa west of Interstate 35. The snow may initially be very heavy and wet and may cause tree damage and subsequent power outages. In addition, gusty northeast winds will cause areas of blowing snow that will reduce visibility. This wind also may enhance the potential for tree damage where the heavy and wet snow occurs. IAZ004>007-015>017-023-024-011200- /O.CON.KDMX.WS.W.0011.181201T0900Z-181202T1800Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, and Humboldt 948 PM CST Fri Nov 30 2018 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM SATURDAY TO NOON CST SUNDAY... * WHAT...From 3 AM Saturday to noon CST Sunday. Light freezing rain possible early Saturday morning, with snow likely by Saturday afternoon and into Sunday. Wind gusts may exceed 45 mph on Saturday. * WHERE...Northern Iowa, especially west of Interstate 35 and north of Highway 20. * WHEN...From 3 AM Saturday to noon CST Sunday. Light freezing rain possible early Saturday morning, with snow likely by Saturday afternoon and into Sunday. * ADDITIONAL DETAILS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Tree damage and power outages are also possible with the strong winds and heavy, wet snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ025>028-033>038-044>049-057-058-011200- /O.CON.KDMX.WW.Y.0027.000000T0000Z-181201T1400Z/ Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster-Hamilton-Hardin- Grundy-Crawford-Carroll-Greene-Boone-Story-Marshall-Audubon- Guthrie- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Audubon, Exira, Guthrie Center, Panora, Bayard, and Casey 948 PM CST Fri Nov 30 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM CST SATURDAY... * WHAT...Light freezing rain possible tonight, with light ice accumulations leading to some slick roads. Wind gusts in excess of 45 mph are possible late tonight into early Saturday morning. * WHERE...Parts of west central into north central Iowa. * WHEN...Until 8 AM CST Saturday. * ADDITIONAL DETAILS...A light glaze will form on some roadways and elevated surfaces. Patchy road icing could lead to hazardous travel conditions at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. Expect slippery roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://www.weather.gov/desmoines
962 WWUS43 KDMX 010945 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 345 AM CST Sat Dec 1 2018 ...Prolonged Winter Precipitation This Weekend... .A winter storm system will impact Iowa today into Sunday, spreading rain, freezing rain, and snow across the state. An area of mixed freezing rain, rain and snow will continue this morning, with a change to snow from northwest to southeast expected this afternoon. The snow will continue tonight and taper off late Sunday. Moderate to heavy snow accumulations are possible over northern Iowa west of Interstate 35. The snow may initially be very heavy and wet and may cause tree damage and subsequent power outages. In addition, gusty northeast winds will cause areas of blowing snow that will reduce visibility. This wind also may enhance the potential for tree damage where the heavy and wet snow occurs. IAZ004>007-015>017-023-024-011800- /O.CON.KDMX.WS.W.0011.000000T0000Z-181202T1800Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, and Humboldt 345 AM CST Sat Dec 1 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...Light freezing rain mixing with snow this morning, with snow and some blowing snow likely by this afternoon into Sunday. Wind gusts may exceed 45 mph today. * WHERE...Northern Iowa, especially west of Interstate 35 and north of Highway 20. * WHEN...Now until noon CST Sunday. Light freezing rain/snow mix this morning, with snow likely this afternoon into Sunday. * ADDITIONAL DETAILS...Travel could be very difficult. Icy roads expected this morning. Snowfall and patchy blowing snow could significantly reduce visibility. Tree damage and power outages are also possible with the strong winds and heavy, wet snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ025>028-033>038-044>049-057-058-011800- /O.EXT.KDMX.WW.Y.0027.000000T0000Z-181202T1800Z/ Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster-Hamilton-Hardin- Grundy-Crawford-Carroll-Greene-Boone-Story-Marshall-Audubon- Guthrie- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Audubon, Exira, Guthrie Center, Panora, Bayard, and Casey 345 AM CST Sat Dec 1 2018 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...Light freezing rain early this morning, with light ice accumulations leading to slick, icy roads. Wind gusts in excess of 45 mph are possible today. A period of rain is expected by late morning into this afternoon, with rain changing to snow by this evening into tonight and continuing into Sunday. * WHERE...Parts of west central into north central Iowa. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...A light glaze of ice on some roads and elevated surfaces. Patchy road icing could lead to hazardous travel conditions at times. Winter impacts will diminish some toward late morning into this afternoon as temperatures warm above freezing. However as snow begins tonight into Sunday, slick, snow-covered roads can be expected with difficult travel possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. Expect slippery roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://www.weather.gov/desmoines
887 WWUS43 KDMX 011457 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 857 AM CST Sat Dec 1 2018 ...Prolonged Winter Precipitation This Weekend... .A winter storm system will impact Iowa today into Sunday, spreading rain, freezing rain, and snow across the state. An area of mixed freezing rain, rain and snow will continue this morning, with a change to snow from northwest to southeast expected this afternoon. The snow will continue tonight and taper off late Sunday. IAZ004>007-015>017-023-024-012300- /O.CON.KDMX.WS.W.0011.000000T0000Z-181202T1800Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, and Humboldt 857 AM CST Sat Dec 1 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...Light freezing rain mixing with snow this morning, with snow and blowing snow likely by this afternoon into Sunday. 6 to 10 inches of heavy wet snow is expected by midday Sunday. Wind gusts may also exceed 45 mph today as well. * WHERE...Northern Iowa, especially west of Interstate 35 and north of Highway 20. * WHEN...Now until noon CST Sunday. Light freezing rain/snow mix this morning, with snow likely this afternoon into Sunday. * ADDITIONAL DETAILS...Travel could be very difficult. Icy roads expected this morning. Snowfall and patchy blowing snow could significantly reduce visibility. Tree damage and power outages are also possible with the strong winds and heavy, wet snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ025>028-033>038-044>049-057-058-012300- /O.CON.KDMX.WW.Y.0027.000000T0000Z-181202T1800Z/ Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster-Hamilton-Hardin- Grundy-Crawford-Carroll-Greene-Boone-Story-Marshall-Audubon- Guthrie- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Audubon, Exira, Guthrie Center, Panora, Bayard, and Casey 857 AM CST Sat Dec 1 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...A period of freezing rain is expected this morning before changing to all rain by late morning across the advisory area. Periods of rain are expected into the afternoon changing to snow this evening into tonight. The snow will persist into Sunday with total accumulations of 2 to 6 inches. Wind gusts in excess of 45 mph are possible today as well. * WHERE...Parts of west central into north central Iowa. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...A light glaze of ice on some roads and elevated surfaces. Patchy road icing could lead to hazardous travel conditions at times. Winter impacts will diminish some toward late morning into this afternoon as temperatures warm above freezing. However as snow begins tonight into Sunday, slick, snow-covered roads can be expected with difficult travel possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. Expect slippery roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://www.weather.gov/desmoines
349 WWUS43 KDMX 011645 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 1045 AM CST Sat Dec 1 2018 ...Prolonged Winter Precipitation This Weekend... .A winter storm system will impact Iowa today into Sunday, spreading rain, freezing rain, and snow across the state. An area of mixed freezing rain, rain and snow will continue this morning, with a change to snow from northwest to southeast expected this afternoon. The snow will continue tonight and taper off late Sunday. IAZ004>007-015>017-023-024-020045- /O.CON.KDMX.WS.W.0011.000000T0000Z-181202T1800Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, and Humboldt 1045 AM CST Sat Dec 1 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...A mixture of sleet, freezing rain and snow is expected this morning, with snow and blowing snow likely by this afternoon into Sunday. 6 to 10 inches of heavy wet snow is expected by midday Sunday. Wind gusts may also exceed 40 mph today as well. * WHERE...Northern Iowa, especially west of Interstate 35 and north of Highway 20. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...Travel could be very difficult. Icy roads expected this morning. Snowfall and patchy blowing snow could significantly reduce visibility. Tree damage and power outages are also possible with the strong winds and heavy, wet snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ025>028-033>038-044>049-057-058-020045- /O.CON.KDMX.WW.Y.0027.000000T0000Z-181202T1800Z/ Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster-Hamilton-Hardin- Grundy-Crawford-Carroll-Greene-Boone-Story-Marshall-Audubon- Guthrie- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Audubon, Exira, Guthrie Center, Panora, Bayard, and Casey 1045 AM CST Sat Dec 1 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...A period of heavy snow is expected through midday before precipitation diminishes to light drizzle by this afternoon. Drizzle or very light rain are expected this afternoon changing to snow this evening into tonight. The snow will persist into Sunday with total accumulations of 2 to 6 inches. Wind gusts in excess of 40 mph are possible today as well. * WHERE...Parts of west central into north central Iowa. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...A light glaze of ice on some roads and elevated surfaces. Patchy road icing could lead to hazardous travel conditions at times. Winter impacts will diminish some toward late morning into this afternoon as temperatures warm above freezing. However as snow begins tonight into Sunday, slick, snow-covered roads can be expected with difficult travel possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. Expect slippery roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://www.weather.gov/desmoines
109 WWUS43 KDMX 011935 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 135 PM CST Sat Dec 1 2018 ...Prolonged Winter Precipitation This Weekend... .A winter storm system will impact Iowa today into Sunday, spreading rain, freezing rain, and snow across the state. Most of the precipitation is expected to change to snow by Sunday morning before ending later in the day. IAZ004>007-015>017-023-024-020345- /O.CON.KDMX.WS.W.0011.000000T0000Z-181202T1800Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, and Humboldt 135 PM CST Sat Dec 1 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...Periods of light snow mixed with rain is expected the remainder of this afternoon with periods of snow tonight into Sunday morning. 6 to 10 inches of heavy wet snow is expected by midday Sunday. Wind gusts may also exceed 40 mph today as well. * WHERE...Northern Iowa, especially west of Interstate 35 and north of Highway 20. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...Travel could be very difficult. Icy roads expected this morning. Snowfall and patchy blowing snow could significantly reduce visibility. Tree damage and power outages are also possible with the strong winds and heavy, wet snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ025>028-033>038-044>049-057-058-020345- /O.CON.KDMX.WW.Y.0027.000000T0000Z-181202T1800Z/ Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster-Hamilton-Hardin- Grundy-Crawford-Carroll-Greene-Boone-Story-Marshall-Audubon- Guthrie- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Audubon, Exira, Guthrie Center, Panora, Bayard, and Casey 135 PM CST Sat Dec 1 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...Drizzle or very light rain are expected this afternoon with a brief period of snow with any heavier showers. A transition to all snow is expected later tonight into Sunday morning before ending. Total accumulations of 2 to 6 inches is expected. Wind gusts in excess of 40 mph are possible today as well. * WHERE...Parts of west central into north central Iowa. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...Winter impacts will diminish some this afternoon as temperatures warm above freezing. However as snow begins tonight into Sunday, slick, snow-covered roads can be expected with difficult travel possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. Expect slippery roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://www.weather.gov/desmoines
749 WWUS43 KDMX 012126 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 326 PM CST Sat Dec 1 2018 ...Winter Storm to Persist into Sunday... .A winter storm will continue to impact Iowa through Sunday morning with areas of snow across about the northwest half of Iowa. Blowing snow is also expected across northern Iowa as strong winds persist overnight. IAZ004>007-015>017-023-024-020530- /O.CON.KDMX.WS.W.0011.000000T0000Z-181202T1800Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, and Humboldt 326 PM CST Sat Dec 1 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...Periods of snow, mixed at times with rain this evening, are expected tonight into Sunday morning. Additional accumulations of 3 to 6 inches is expected with storm totals of 5 to 10 inches with highest amounts in the northwest. Strong northeast winds will produce blowing snow as well. * WHERE...Northern Iowa, especially west of Interstate 35 and north of Highway 20. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...Travel could be very difficult. Snowfall and blowing snow could significantly reduce visibility. Tree damage and power outages are also possible with the strong winds and heavy, wet snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ070-071-081-092-020530- /O.EXA.KDMX.WW.Y.0027.000000T0000Z-181202T1800Z/ Cass-Adair-Adams-Taylor- Including the cities of Atlantic, Greenfield, Stuart, Adair, Fontanelle, Corning, Bedford, Lenox, and New Market 326 PM CST Sat Dec 1 2018 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...Light rain is expected this evening, transitioning to snow overnight. The snow will persist into Sunday before ending. Total snow accumulations of 2 to 4 inches is expected. * WHERE...West central into southwest Iowa. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...As snow begins tonight into Sunday, roads will begin to refreeze with slick, snow-covered roads expected making travel difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ025>028-033>038-044>049-057-058-020530- /O.CON.KDMX.WW.Y.0027.000000T0000Z-181202T1800Z/ Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster-Hamilton-Hardin- Grundy-Crawford-Carroll-Greene-Boone-Story-Marshall-Audubon- Guthrie- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Audubon, Exira, Guthrie Center, Panora, Bayard, and Casey 326 PM CST Sat Dec 1 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...Drizzle or very light rain are expected into this evening as temperatures remain just above freezing. Later this evening into early morning Sunday, a transition to all snow is expected with snow persisting into Sunday before ending. Total accumulations of 2 to 5 inches is expected. * WHERE...Parts of west central into north central Iowa. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...As snow begins tonight into Sunday, roads will refreeze with slick, snow-covered roads expected making travel difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. Expect slippery roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://www.weather.gov/desmoines
648 WWUS43 KDMX 020208 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 808 PM CST Sat Dec 1 2018 ...Winter Storm to Persist into Sunday... .A winter storm will continue to impact Iowa through Sunday morning with areas of snow across about the northwest half of Iowa. Blowing snow is also expected across northern Iowa as strong winds persist overnight. IAZ004>007-015>017-023-024-021015- /O.CON.KDMX.WS.W.0011.000000T0000Z-181202T1800Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, and Humboldt 808 PM CST Sat Dec 1 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...Periods of snow, mixed at times with rain this evening, are expected tonight into Sunday morning. Additional accumulations of 3 to 6 inches is expected with storm totals of 5 to 10 inches with highest amounts in the northwest. Strong northeast winds will produce blowing snow as well. * WHERE...Northern Iowa, especially west of Interstate 35 and north of Highway 20. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...Travel could be very difficult. Snowfall and blowing snow could significantly reduce visibility. Tree damage and power outages are also possible with the strong winds and heavy, wet snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ025>028-033>038-044>049-057-058-070-071-081-092-021015- /O.CON.KDMX.WW.Y.0027.000000T0000Z-181202T1800Z/ Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster-Hamilton-Hardin- Grundy-Crawford-Carroll-Greene-Boone-Story-Marshall-Audubon- Guthrie-Cass-Adair-Adams-Taylor- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, Atlantic, Greenfield, Stuart, Adair, Fontanelle, Corning, Bedford, Lenox, and New Market 808 PM CST Sat Dec 1 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...Light rain is expected into this evening as temperatures remain just above freezing. Later this evening into early morning Sunday, a transition to all snow is expected with snow persisting into Sunday before ending. Total accumulations of 2 to 5 inches is expected. * WHERE...Parts of west central into north central Iowa. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...As snow begins tonight into Sunday, roads will refreeze with slick, snow-covered roads expected making travel difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. Expect slippery roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
595 WWUS43 KDMX 020559 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 1159 PM CST Sat Dec 1 2018 ...Winter Storm to Persist into Sunday... .A winter storm will continue to impact Iowa through Sunday morning with areas of snow across about the northwest half of Iowa. Blowing snow is also expected across northern Iowa as strong winds persist overnight. IAZ004>007-015>017-023-024-021400- /O.CON.KDMX.WS.W.0011.000000T0000Z-181202T1800Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, and Humboldt 1159 PM CST Sat Dec 1 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...Periods of snow, mixed at times with rain this evening, are expected tonight into Sunday morning. Additional accumulations of 3 to 5 inches is expected with storm totals of 5 to 10 inches with highest amounts in the northwest. Strong northeast winds will produce blowing snow as well. * WHERE...Northern Iowa, especially west of Interstate 35 and north of Highway 20. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...Travel could be very difficult. Snowfall and blowing snow could significantly reduce visibility. Tree damage and power outages are also possible with the strong winds and heavy, wet snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ059-072-082-093-021400- /O.EXA.KDMX.WW.Y.0027.000000T0000Z-181202T1800Z/ Dallas-Madison-Union-Ringgold- Including the cities of Perry, Waukee, Adel, Winterset, Earlham, Creston, and Mount Ayr 1159 PM CST Sat Dec 1 2018 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...Overnight into early morning Sunday, a transition to all snow is expected with snow persisting into Sunday before ending. Total accumulations of 2 to 5 inches is expected. * WHERE...Parts of central into south central Iowa. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...As snow begins tonight into Sunday, roads will refreeze with slick, snow-covered roads expected making travel difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ025>028-033>038-044>049-057-058-070-071-081-092-021400- /O.CON.KDMX.WW.Y.0027.000000T0000Z-181202T1800Z/ Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster-Hamilton-Hardin- Grundy-Crawford-Carroll-Greene-Boone-Story-Marshall-Audubon- Guthrie-Cass-Adair-Adams-Taylor- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Denison, Carroll, Jefferson, Boone, Ames, Marshalltown, Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, Atlantic, Greenfield, Stuart, Adair, Fontanelle, Corning, Bedford, Lenox, and New Market 1159 PM CST Sat Dec 1 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...Overnight into early morning Sunday, a transition to all snow is expected with snow persisting into Sunday before ending. Total accumulations of 2 to 5 inches is expected. * WHERE...Parts of west central into north central Iowa. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...As snow begins tonight into Sunday, roads will refreeze with slick, snow-covered roads expected making travel difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. Expect slippery roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://www.weather.gov/desmoines
710 WWUS43 KDMX 020933 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 333 AM CST Sun Dec 2 2018 ...Winter Storm to Persist into Sunday... .A winter storm will continue to impact Iowa this morning with areas of snow across much of northern and western Iowa. Blowing snow is expected across northern and western Iowa as strong winds persist into the morning hours. IAZ044-045-057-070-021800- /O.UPG.KDMX.WW.Y.0027.000000T0000Z-181202T1800Z/ /O.EXA.KDMX.WS.W.0011.000000T0000Z-181202T1800Z/ Crawford-Carroll-Audubon-Cass- Including the cities of Denison, Carroll, Audubon, Exira, and Atlantic 333 AM CST Sun Dec 2 2018 ...WINTER STORM WARNING IN EFFECT UNTIL NOON CST TODAY... * WHAT...Heavy snow. Additional snow accumulations of 2 to 4 inches. * WHERE...West central into southwest Iowa. * WHEN...Until noon CST today. * ADDITIONAL DETAILS...A band of moderate to heavy snow will persist across much of west central and southwest Iowa through the morning hours. Snowfall rates may be as high as one half inch to one inch per hour at times. Slick, snow-covered roads along with reduced visibility from areas of blowing snow may make travel hazardous through the morning hours. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. 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. && $$ IAZ004>007-015>017-023-024-021800- /O.CON.KDMX.WS.W.0011.000000T0000Z-181202T1800Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, and Humboldt 333 AM CST Sun Dec 2 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY... * WHAT...Periods of snow to continue through the morning hours. Additional accumulations of 1 to 4 inches can be expected, with storm total amounts of 4 to 8 inches. The highest amounts will be in the far northwest. Gusty north to northwest winds will produce blowing snow as well. * WHERE...Northern Iowa, especially west of Interstate 35 and north of Highway 20. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...Travel could be very difficult. Snowfall and blowing snow could significantly reduce visibility. Tree damage and power outages are also possible with the strong winds and heavy, wet snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ025>028-033>038-046>049-058-059-071-072-081-082-092-093-021800- /O.CON.KDMX.WW.Y.0027.000000T0000Z-181202T1800Z/ Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster-Hamilton-Hardin- Grundy-Greene-Boone-Story-Marshall-Guthrie-Dallas-Adair-Madison- Adams-Union-Taylor-Ringgold- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Jefferson, Boone, Ames, Marshalltown, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Corning, Creston, Bedford, Lenox, New Market, and Mount Ayr 333 AM CST Sun Dec 2 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY... * WHAT...Periods of snow to continue his morning. Total accumulations of 2 to 5 inches is expected. * WHERE...Parts of central into south central Iowa. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...Slick, snow-covered roads are expected to make travel difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://www.weather.gov/desmoines
747 WWUS43 KDMX 021330 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 730 AM CST Sun Dec 2 2018 ...Winter Storm to Wind Down Today... .A winter storm will continue to impact Iowa this morning with areas of snow across much of northern and western Iowa. Blowing and drifting snow is expected across northern and western Iowa as strong winds persist through the morning hours. The snow is expected to taper off by mid-day into this afternoon, with some patchy blowing snow still possible into the afternoon hours. IAZ004>007-015>017-023-024-044-045-057-070-021800- /O.CON.KDMX.WS.W.0011.000000T0000Z-181202T1800Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Crawford-Carroll-Audubon-Cass- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Denison, Carroll, Audubon, Exira, and Atlantic 730 AM CST Sun Dec 2 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY... * WHAT...Periods of snow continue this morning. Snow to taper off toward mid-day into this afternoon. Additional snow accumulations of 1 to 2 inches through Noon. * WHERE...West central into southwest Iowa. * WHEN...Until noon CST today. * ADDITIONAL DETAILS...Slick, snow-covered roads along with reduced visibility from some blowing and drifting snow will make travel hazardous at times this morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ025>028-033>038-046>049-058-059-071-072-081-082-092-093-021800- /O.CON.KDMX.WW.Y.0027.000000T0000Z-181202T1800Z/ Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster-Hamilton-Hardin- Grundy-Greene-Boone-Story-Marshall-Guthrie-Dallas-Adair-Madison- Adams-Union-Taylor-Ringgold- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Jefferson, Boone, Ames, Marshalltown, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Corning, Creston, Bedford, Lenox, New Market, and Mount Ayr 730 AM CST Sun Dec 2 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY... * WHAT...Periods of snow continue this morning. Snow to taper off toward mid-day into this afternoon. Additional snow accumulations of 1 to 2 inches through Noon. * WHERE...Parts of central into south central Iowa. * WHEN...Now until noon CST Sunday. * ADDITIONAL DETAILS...Slick, snow-covered roads are expected to make travel difficult. Some patchy blowing and drifting snow is possible through the day. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://www.weather.gov/desmoines
788 WWUS43 KDMX 021757 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 1157 AM CST Sun Dec 2 2018 ...Winter Storm Winding Down Across Iowa... IAZ004>007-015>017-023-024-044-045-057-070-021900- /O.EXP.KDMX.WS.W.0011.000000T0000Z-181202T1800Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Crawford-Carroll-Audubon-Cass- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Denison, Carroll, Audubon, Exira, and Atlantic 1157 AM CST Sun Dec 2 2018 ...WINTER STORM WARNING WILL EXPIRE AT NOON CST TODAY... Periods of light snow and flurries will persist into this afternoon along with gusty north winds. However, impactful accumulating snow has finished with little additional accumulation expected. Some patchy blowing snow will remain in rural areas so a few slick spots may still exist on area highways and roads. $$ IAZ025>028-033>038-046>049-058-059-071-072-081-082-092-093-021900- /O.EXP.KDMX.WW.Y.0027.000000T0000Z-181202T1800Z/ Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster-Hamilton-Hardin- Grundy-Greene-Boone-Story-Marshall-Guthrie-Dallas-Adair-Madison- Adams-Union-Taylor-Ringgold- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Jefferson, Boone, Ames, Marshalltown, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Corning, Creston, Bedford, Lenox, New Market, and Mount Ayr 1157 AM CST Sun Dec 2 2018 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON CST TODAY... Periods of light snow and flurries will persist into this afternoon along with gusty north winds. However, impactful accumulating snow has finished with little additional accumulation expected. $$ For more information from the National Weather Service visit https://www.weather.gov/desmoines
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 Nov 30, 12:01 PM CST, 3 hours 17 minutes earlier.
Area forecast discussion, Nov 30, 12:01 PM CST, 3 hours 17 minutes before
Area Forecast Discussion National Weather Service Des Moines IA 1201 PM CST Fri Nov 30 2018 .UPDATE... Issued at 622 AM CST Fri Nov 30 2018 Continue to see dense fog expand across the forecast area, thus have expanded the advisory to include nearly all of the forecast area except for the far northeast. Also went ahead and extended the advisory until 10am which still may not be enough, as feel some of the fog may improve some above dense criteria, but may linger through much of the day. Slick spots still possible from frosty patches of fog deposits freezing on roads, bridges and sidewalks. && .SHORT TERM.../Today/ Issued at 430 AM CST Fri Nov 30 2018 A large area of surface high pressure is in place across the state early this morning with a large low stratus deck continuing to progress slowly southward across northern and northwestern Iowa. Some patchy dense fog is occurring near the edge of the advancing stratus with visibilities improving some as the clouds move in. Further south along the southern half of the forecast area mainly clear skies or some high clouds are in place with dense fog developing as with moist air in place across the snowpack and frozen ground and abundance residual moisture from the light rain earlier Thursday. Some slick spots were already being reported from the wet pavement getting frosty/freezing spots. Additional slick spots likely with the dense fog as much of the sites along and south of Hwy 30 at 1/2 mile or less. Therefore could have some fog deposits on surfaces creating slick spots on roads, bridges and sidewalks. The fog will likely continue into the mid morning hours before improving some by late morning. Some concern of it lifting some, but still sticking around through much of the day. Will have to monitor and address that later this morning. WAA should allow for milder temps today into the mid to upper 30s, but warming will be tempered with the fog and stratus. .LONG TERM.../Tonight through Thursday/ Issued at 430 AM CST Fri Nov 30 2018 Similar to last night, the focus in the longer term was on the weekend storm. The trough of low pressure has dug into the southwest US per water vapor imagery and derived motion winds from GOES-East. As the wave moves onto the southern Plains today, the trough will take on a negative tilt and close off at 500mb with surface low pressure developing on the lee of the Rockies over southeast Colorado and then eventually lifting northeastward. Soundings show mid-level dry air that will take a bit of time to saturate so have slowed the precipitation arrival by a few hours from previous forecast this evening. High resolution models and indications in global models suggest there will be a first wave of precipitation that moves up this evening. This appears to be tied to frontogenesis in the 700-500mb layer best shown in the NAM and to a lesser extent in the GFS. There may be a lull of a few hours over southern to central Iowa in the precipitation where there is drizzle if anything. Then, a stronger surge of theta-e advection will push northward into the state coupled with strong Q-vector convergence that should lead to widespread precipitation. Of course, precipitation type is still a point of contention in the forecast. With the first wave of precipitation over central and southern Iowa, there may be a brief window of a wintry mix before warmer air switches the precipitation to rain. Farther north over northern Iowa, a more prolonged wintry mix is expected due to a warm wedge of air aloft and near to below freezing near surface layer. Only a slight adjustment was made to the watch to start the time a few hours later over the far north with precipitation not starting until later this evening. Otherwise, held off on any advisory or warning headlines with main impacts expected late tonight if not Saturday. For Saturday, surface low pressure will move up into northwest Missouri toward midday. Temperatures were adjusted closer to CONSRaw as initial guidance was a few degrees too warm given the persistent expected precipitation. While rain will be ongoing over southern Iowa with thunder possible per NAM and GFS soundings as far north as perhaps Interstate 80, northern Iowa will still be in the midst of a wintry mix favoring freezing rain. Soundings at MCW and FOD show that there is some drier air in the mid-levels below the ice introduction layer. As this layer saturates toward midday into the afternoon hours, dynamic cooling in this layer will help to transition the precipitation over to snow over this area. With a deep layer of just below freezing, the snow could be in a favored region of dendrites with strong omega producing a heavy, wet snow. Winds were upped in line with CONSMOS, though may not be enough. Regardless, northeast winds of 20 to 30 mph will certainly blow around the falling snow and create visibility reductions along with plastering the snow to trees. The combination of the heavy wet snow on trees with gusty winds may cause some power outages. As the upper low begins to shear out and lift out of the area Saturday night into Sunday, this will allow colder air to fill into the state with precipitation eventually change over to snow across all of central Iowa before ending Sunday night. Still could see a short period on the tail end of the precipitation where freezing drizzle occurs as drier air moves into the ice introduction layer. But for now, have kept all snow mention on the back side as the precipitation winds down Sunday night. Monday and beyond, colder air will settle into the state with a front passing through late in the week that may bring some light snow and perhaps a reinforcing shot of cold air to end the week. && .AVIATION.../For the 18Z TAFS through 18Z Saturday afternoon/ Issued at 1159 AM CST Fri Nov 30 2018 Very involved forecast this period with multiple aviation impacts expected and only medium confidence. Initially IFR/LIFR fog and/or stratus remains in place across portions of western and northern IA, including KFOD and KMCW. Minor improvement may occur into this afternoon, but conditions should deteriorate again to IFR/LIFT by tonight and also expand again area wide. An approaching low pressure system is also expected to move through the Plains spreading rain into southern IA and a wintry mix north. The deep approaching low pressure system will also sharply increase easterly flow just aloft introducing LLWS to some locations. && .DMX WATCHES/WARNINGS/ADVISORIES... Winter Storm Watch from 6 PM CST this evening through Sunday morning for IAZ033>037-044>046. Winter Storm Watch from 9 PM CST this evening through Sunday morning for IAZ004>007-015>017-023>028. && UPDATE...Beerends SHORT TERM...Beerends LONG TERM...Ansorge AVIATION...Small HYDROLOGY...Ansorge
Hazardous weather outlook, Nov 30, 10:41 AM CST, 4 hours 37 minutes before
Hazardous Weather Outlook National Weather Service Des Moines IA 1041 AM CST Fri Nov 30 2018 IAZ004>007-015>017-023>028-033>037-044>046-011200- Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun- Webster-Hamilton-Hardin-Crawford-Carroll-Greene- 1041 AM CST Fri Nov 30 2018 This Hazardous Weather Outlook is for portions of central and northern Iowa. .DAY ONE...Today and tonight Areas of fog this morning, which may be dense in spots, with improvement by noontime. The fog may cause slick, frosty patches on roads. A Winter Storm Watch for snow and ice accumulations is also in effect for the area starting tonight. Gusty winds will be possible as well. Please refer to the National Weather Service website at weather.gov/desmoines for further details. .DAYS TWO THROUGH SEVEN...Saturday through Thursday A Winter Storm Watch for snow and ice accumulations continue for the area Saturday into Sunday morning. Gusty winds will be possible as well. Please refer to the National Weather Service website at weather.gov/desmoines for further details. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed, but any reports of snow and ice are encouraged and appreciated. IAZ038-039-047>050-057>062-070>075-081>086-092>097-011200- Grundy-Black Hawk-Boone-Story-Marshall-Tama-Audubon-Guthrie- Dallas-Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren-Marion- Mahaska-Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold- Decatur-Wayne-Appanoose-Davis- 1041 AM CST Fri Nov 30 2018 This Hazardous Weather Outlook is for portions of central and southern Iowa. .DAY ONE...Today and tonight Precipitation in the form of rain or a wintry mix is expected to develop across central Iowa this evening. Light freezing rain and sleet is possible north along the Highway 20 corridor. .DAYS TWO THROUGH SEVEN...Saturday through Thursday A storm will move through Iowa tonight into the weekend. The system may produce wintry precipitation across central Iowa with light snow and ice accumulations possible. Gusty winds are possible as well. Locally heavy rain is possible at times, which could lead to some minor flood concerns. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed, but any reports of snow or ice accumulations are encouraged and appreciated. Small
In the hours before
Special weather statement, Nov 30, 10:32 AM CST, 4 hours 46 minutes before
Special Weather Statement National Weather Service Des Moines IA 1032 AM CST Fri Nov 30 2018 IAZ004>007-015>017-023>026-033>037-044>048-057-301800- Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Sac-Calhoun-Webster-Hamilton- Hardin-Crawford-Carroll-Greene-Boone-Story-Audubon- Including the cities of Estherville, Algona, Forest City, Lake Mills, Northwood, Manly, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Eagle Grove, Clarion, Belmond, Hampton, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge, Webster City, Iowa Falls, Eldora, Ackley, Denison, Carroll, Jefferson, Boone, Ames, Audubon, and Exira 1032 AM CST Fri Nov 30 2018 ...Areas of Fog will Persist through the Morning... Conditions continue to gradually improve but widespread fog of varied degrees remains in place across portions of northern and western Iowa. This includes Interstates 35 and 80 north and west of Des Moines. In some locations the fog will be dense with visibilities below a half mile. The visibilities should improve to at least a mile or two in most locations by noon however. Motorists are encouraged to slow down and allow for extra distance between vehicles. Small
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 30, 2:34 AM CST | Dense Fog Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 43 more | 7 hr |
| Nov 30, 3:18 PM CST | Winter Weather Advisory | DMX | Adair, Adams, Audubon, Boone, Bremer, Butler and 20 more | 45 hr |
Nearby
Winter Storm Warnings in Iowa, 2018Every winter storm warning in 2018
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.