Alert archive / Iowa / Winter Storm Warnings in 2019
Winter Storm Warning 9, NWS Des Moines, IA
NWS Des Moines, IA issued this winter storm warning at Apr 26, 2019, 3:24 PM CDT for 9 counties in Iowa. It took effect at Apr 27, 2019, 7:00 AM CDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 26, 2019, 3:24 PM CDT (20:24 UTC)
- In effect from
- Apr 27, 2019, 7:00 AM CDT
- Expired
- Apr 27, 2019, 3:35 PM CDT
- In force
- 9 hr
- Issued by
- NWS Des Moines, IA
Counties Black Hawk County, IA, Bremer County, IA, Butler County, IA, Cerro Gordo County, IA, Franklin County, IA, Hancock County, IA, Kossuth County, IA, Winnebago County, IA, Worth County, IA
The radar
The Des Moines radar (KDMX), 145 km from the middle of the area, began a volume at 20:26 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
Minneapolis, MN (KMPX), launched 12:00Z, 8.4 hours before the alert went out and 210 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
- 1278 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
256 WWUS43 KDMX 262024 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 324 PM CDT Fri Apr 26 2019 ...Late Season Winter Storm to Impact Area Saturday... .A fast moving and windy storm system will bring a narrow band of wet, heavy snow to portions of northeastern Iowa Saturday. The snow may melt on contact at the start of the event, but may start to accumulate through the morning hours. North-northeast wind gusts of 20 to 30 mph may significantly reduce visibility and make for hazardous travel. IAZ007-270430- /O.UPG.KDMX.WS.A.0006.190427T1200Z-190428T0000Z/ /O.NEW.KDMX.WS.W.0009.190427T1200Z-190428T0000Z/ Worth- Including the cities of Northwood and Manly 324 PM CDT Fri Apr 26 2019 ...WINTER STORM WARNING IN EFFECT FROM 7 AM TO 7 PM CDT SATURDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 7 inches expected. Winds gusting as high as 30 mph. * WHERE...Northeast Iowa. * WHEN...From 7 AM to 7 PM CDT Saturday. * ADDITIONAL DETAILS...Travel could be very difficult. 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. && $$ IAZ004>006-016-017-026>028-270430- /O.UPG.KDMX.WS.A.0006.190427T1200Z-190428T0000Z/ /O.NEW.KDMX.WW.Y.0028.190427T1200Z-190428T0000Z/ Emmet-Kossuth-Winnebago-Hancock-Cerro Gordo-Franklin-Butler- Bremer- Including the cities of Estherville, Algona, Forest City, Lake Mills, Garner, Britt, Kanawha, Mason City, Clear Lake, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, and Waverly 324 PM CDT Fri Apr 26 2019 ...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM TO 7 PM CDT SATURDAY... * WHAT...Snow expected. Total snow accumulations of 1 to 5 inches expected. Winds gusting as high as 30 mph. * WHERE...Northern Iowa. * WHEN...From 7 AM to 7 PM CDT Saturday. * ADDITIONAL DETAILS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ015-038-039-270430- /O.NEW.KDMX.WW.Y.0028.190427T1200Z-190428T0000Z/ Palo Alto-Grundy-Black Hawk- Including the cities of Emmetsburg, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, and Cedar Falls 324 PM CDT Fri Apr 26 2019 ...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM TO 7 PM CDT SATURDAY... * WHAT...Snow expected. Total snow accumulations of up to 3 inches expected. Winds gusting as high as 30 mph. * WHERE...Northern Iowa. * WHEN...From 7 AM to 7 PM CDT Saturday. * ADDITIONAL DETAILS...Plan on slippery road conditions. 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. && $$ KRULL For more information from the National Weather Service visit https://www.weather.gov/desmoines
7 follow-up statements
116 WWUS43 KDMX 270340 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 1040 PM CDT Fri Apr 26 2019 ...Late Season Winter Storm to Impact the Area on Saturday... .A fast moving and windy storm system will bring a narrow band of wet, heavy snow to portions of far northern Iowa on Saturday. The snow may melt on contact at the start of the event, but may start to accumulate through the morning hours as snow rates increase. Winds from the northeast will gust generally between 25 and 35 mph and this may significantly reduce visibility and make for hazardous travel. Latest trends have the snow shifting southward so adjustment to snow amounts and snow area may occur. IAZ007-271145- /O.CON.KDMX.WS.W.0009.190427T1200Z-190428T0000Z/ Worth- Including the cities of Northwood and Manly 1040 PM CDT Fri Apr 26 2019 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM TO 7 PM CDT SATURDAY... * WHAT...Heavy snow expected. Total snow accumulations of 4 to around 6 inches expected. Winds gusting as high as 35 mph. * WHERE...Worth County. * WHEN...From 7 AM to 7 PM CDT Saturday. * ADDITIONAL DETAILS...Travel could be difficult at times due to reduced visibility and gusty winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ004>006-015>017-026>028-038-039-271145- /O.CON.KDMX.WW.Y.0028.190427T1200Z-190428T0000Z/ Emmet-Kossuth-Winnebago-Palo Alto-Hancock-Cerro Gordo-Franklin- Butler-Bremer-Grundy-Black Hawk- Including the cities of Estherville, Algona, Forest City, Lake Mills, Emmetsburg, Garner, Britt, Kanawha, Mason City, Clear Lake, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, and Cedar Falls 1040 PM CDT Fri Apr 26 2019 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM TO 7 PM CDT SATURDAY... * WHAT...Snow expected. Total snow accumulations of up to 3 to perhaps 4 inches expected. Winds gusting as high as 35 to 40 mph. * WHERE...Northern Iowa. * WHEN...From 7 AM to 7 PM CDT Saturday. * ADDITIONAL DETAILS...Roads may become slippery due to falling snow. Gusty winds will buffet high profile vehicles at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Roads may become snow covered and visibility may be limited at times. 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 Ansorge
580 WWUS43 KDMX 270929 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 429 AM CDT Sat Apr 27 2019 ...Spring Snow Storm to Impact Northern Iowa Today... .A rapidly moving low pressure system is expected to bring an area of rain to transition to snow over northern to northeast portions of Iowa today. The snow is expected to be wet, sticky and heavy at times. Snowfall rates of 1 to 2 inches per hour are likely and with the strong winds expected during the most intense snowfall, resulting in significant visibility restrictions and dangerous travel conditions today. IAZ005-006-016-017-026>028-039-271730- /O.UPG.KDMX.WW.Y.0028.190427T1200Z-190428T0000Z/ /O.EXA.KDMX.WS.W.0009.190427T1200Z-190428T0000Z/ Kossuth-Winnebago-Hancock-Cerro Gordo-Franklin-Butler-Bremer- Black Hawk- Including the cities of Algona, Forest City, Lake Mills, Garner, Britt, Kanawha, Mason City, Clear Lake, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Waterloo, and Cedar Falls 429 AM CDT Sat Apr 27 2019 ...WINTER STORM WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Heavy, wet snow expected. Total snow accumulations of 4 to 6 inches expected with locally higher amounts near 8 inches possible. Winds gusting as high as 35 mph. * WHERE...North central to northeast Iowa. The higher snow totals are expected from around Mason City to Clarksville and eastward into Bremer County. * WHEN...Until 7 PM CDT this evening. * ADDITIONAL DETAILS...Roads are expected to be become sloppy and slick from the wet snow. Gusty winds will create significant visibility restrictions and buffet high profile vehicles at times. 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. && $$ IAZ007-271730- /O.CON.KDMX.WS.W.0009.190427T1200Z-190428T0000Z/ Worth- Including the cities of Northwood and Manly 429 AM CDT Sat Apr 27 2019 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Heavy snow expected. Total snow accumulations of 4 to around 6 inches expected with locally higher amounts near 8 inches possible. Winds gusting as high as 35 mph. * WHERE...Worth County. * WHEN...From 7 AM to 7 PM CDT Saturday. * ADDITIONAL DETAILS...Roads are expected to be become sloppy and slick from the wet snow. Gusty winds will create significant visibility restrictions and buffet high profile vehicles at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ024-025-037-050-271730- /O.EXA.KDMX.WW.Y.0028.190427T1200Z-190428T0000Z/ Humboldt-Wright-Hardin-Tama- Including the cities of Humboldt, Eagle Grove, Clarion, Belmond, Iowa Falls, Eldora, Ackley, Tama, Toledo, Traer, Dysart, and Gladbrook 429 AM CDT Sat Apr 27 2019 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Snow expected. Total snow accumulations of 1 to 3 inches expected with a few spots near 4 inches along the northern portions of counties. Winds gusting as high as 40 mph. * WHERE...North central Iowa. * WHEN...From 7 AM to 7 PM CDT Saturday. * ADDITIONAL DETAILS...Roads may become slippery due to falling snow and gusty winds could cause trouble for high profile vehicles at times and restricted visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ004-015-038-271730- /O.CON.KDMX.WW.Y.0028.190427T1200Z-190428T0000Z/ Emmet-Palo Alto-Grundy- Including the cities of Estherville, Emmetsburg, Grundy Center, Reinbeck, Conrad, Dike, and Wellsburg 429 AM CDT Sat Apr 27 2019 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Snow expected. Total snow accumulations of up to 2 to perhaps 4 inches expected. Winds gusting as high as 35 to 40 mph. * WHERE...Northern Iowa. * WHEN...From 7 AM to 7 PM CDT Saturday. * ADDITIONAL DETAILS...Roads may become slippery due to falling snow and gusty winds could cause trouble for high profile vehicles at times and restricted visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Roads may become snow covered and visibility may be limited at times. Use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Podrazik For more information from the National Weather Service visit https://www.weather.gov/desmoines
629 WWUS43 KDMX 271252 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 752 AM CDT Sat Apr 27 2019 ...Spring Snow Storm to Impact Northern Iowa Today... .A rapidly moving low pressure system will continue to push across Iowa today. Rain is quickly switching over to snow across northern Iowa and thundersnow has been reported at Estherville. The snow is expected to be wet, sticky and heavy at times. Snowfall rates of 1 to 2 inches per hour are likely at times and with the strong winds expected during the most intense snowfall, significant visibility restrictions and dangerous travel conditions will ensue today. Plus, with the sticky nature of the snow and gusty winds, damage to trees and powerlines are possible. IAZ005>007-016-017-026>028-039-272100- /O.CON.KDMX.WS.W.0009.000000T0000Z-190428T0000Z/ Kossuth-Winnebago-Worth-Hancock-Cerro Gordo-Franklin-Butler- Bremer-Black Hawk- Including the cities of Algona, Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Waterloo, and Cedar Falls 752 AM CDT Sat Apr 27 2019 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Heavy, wet sticky snow. Thundersnow possible, enhancing the snowfall rates. Total snow accumulations of 4 to 6 inches expected with locally higher amounts near 8 inches possible. Winds gusting as high as 35 mph. * WHERE...North central to northeast Iowa. The higher snow totals are expected from around Mason City to Clarksville and eastward into Bremer County. * WHEN...Until 7 PM CDT this evening. * ADDITIONAL DETAILS...Roads are expected to be become sloppy and slick from the wet snow. Gusty winds will create significant visibility restrictions and buffet high profile vehicles at times. 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. && $$ IAZ004-015-024-025-037-038-050-272100- /O.CON.KDMX.WW.Y.0028.000000T0000Z-190428T0000Z/ Emmet-Palo Alto-Humboldt-Wright-Hardin-Grundy-Tama- Including the cities of Estherville, Emmetsburg, Humboldt, Eagle Grove, Clarion, Belmond, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Tama, Toledo, Traer, Dysart, and Gladbrook 752 AM CDT Sat Apr 27 2019 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Heavy, wet sticky snow expected. Total snow accumulations of 1 to 3 inches expected with a few spots near 4 inches along the northern portions of counties. Winds gusting as high as 40 mph. * WHERE...North central Iowa. * WHEN...From 7 AM to 7 PM CDT Saturday. * ADDITIONAL DETAILS...Roads may become slippery due to falling snow and gusty winds could cause trouble for high profile vehicles at times and restricted visibility. 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. && $$ Podrazik For more information from the National Weather Service visit https://www.weather.gov/desmoines
600 WWUS43 KDMX 271558 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 1058 AM CDT Sat Apr 27 2019 ...Spring Snow Storm to Impact Northern Iowa Today... .Low pressure moving across the state will produce heavy wet snow across portions of northern Iowa through this afternoon. Low visibilities and rapid snowfall rates are expected into the afternoon before the precipitation ends by early evening. Moderate to heavy accumulations are expected. IAZ005>007-016-017-026>028-039-280000- /O.CON.KDMX.WS.W.0009.000000T0000Z-190428T0000Z/ Kossuth-Winnebago-Worth-Hancock-Cerro Gordo-Franklin-Butler- Bremer-Black Hawk- Including the cities of Algona, Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Hampton, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, Waverly, Waterloo, and Cedar Falls 1058 AM CDT Sat Apr 27 2019 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Heavy, wet sticky snow is expected into the afternoon with a few claps of thunder. Snowfall rates of 1 to 2 inches per hour are likely with total snow accumulations of 4 to 6 inches and localized higher amounts. Winds gusting up to 35 mph are also expected. * WHERE...North central to northeast Iowa. The higher snow totals are expected from around Mason City to Clarksville and eastward into Bremer County. * WHEN...Until 7 PM CDT this evening. * ADDITIONAL DETAILS...Roads are expected to be become sloppy and slick from the wet snow. Gusty winds will create significant visibility restrictions and buffet high profile vehicles at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ004-015-024-025-037-038-050-280000- /O.CON.KDMX.WW.Y.0028.000000T0000Z-190428T0000Z/ Emmet-Palo Alto-Humboldt-Wright-Hardin-Grundy-Tama- Including the cities of Estherville, Emmetsburg, Humboldt, Eagle Grove, Clarion, Belmond, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Tama, Toledo, Traer, Dysart, and Gladbrook 1058 AM CDT Sat Apr 27 2019 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Heavy, wet sticky snow expected. Total snow accumulations of 1 to 3 inches expected with a few spots near 4 inches. Winds gusting as high as 35 mph at times. * WHERE...North central Iowa. * WHEN...From 7 AM to 7 PM CDT Saturday. * ADDITIONAL DETAILS...Roads may become slippery due to falling snow and gusty winds could cause trouble for high profile vehicles at times and restricted visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ For more information from the National Weather Service visit https://www.weather.gov/desmoines
522 WWUS43 KDMX 271819 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 119 PM CDT Sat Apr 27 2019 ...Spring Snow Across Northern Iowa This Afternoon... .Low pressure moving across the state will produce heavy wet snow across portions of northern Iowa through this afternoon. Low visibilities and rapid snowfall rates are expected into the afternoon before the precipitation ends by early evening. Moderate to heavy accumulations are expected. IAZ026-039-280000- /O.CAN.KDMX.WS.W.0009.000000T0000Z-190428T0000Z/ /O.EXA.KDMX.WW.Y.0028.000000T0000Z-190428T0000Z/ Franklin-Black Hawk- Including the cities of Hampton, Waterloo, and Cedar Falls 119 PM CDT Sat Apr 27 2019 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Snow with gusty winds to 35 mph. Snow accumulations of 1 to 3 inches. * WHERE...Portions of northern Iowa. * WHEN...Until 7 PM CDT this evening. * ADDITIONAL DETAILS...Roads may become slippery due to falling snow and gusty winds could cause trouble for high profile vehicles at times and restricted visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ004-015-024-271930- /O.CAN.KDMX.WW.Y.0028.000000T0000Z-190428T0000Z/ Emmet-Palo Alto-Humboldt- Including the cities of Estherville, Emmetsburg, and Humboldt 119 PM CDT Sat Apr 27 2019 ...WINTER WEATHER ADVISORY IS CANCELLED... Only light flurries or sprinkles are expected the remainder of this afternoon. Impactful snowfall has ended. $$ IAZ005>007-016-017-027-028-280000- /O.CON.KDMX.WS.W.0009.000000T0000Z-190428T0000Z/ Kossuth-Winnebago-Worth-Hancock-Cerro Gordo-Butler-Bremer- Including the cities of Algona, Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, Clear Lake, Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, and Waverly 119 PM CDT Sat Apr 27 2019 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Heavy, wet snow is expected into the afternoon with a few claps of thunder. Snowfall rates of 1 inch per hour is likely with total snow accumulations of 2 to 5 inches and locally higher amounts. Winds gusting up to 35 mph are also expected. * WHERE...North central to northeast Iowa. The higher snow totals are expected from around Mason City to Clarksville and eastward into Bremer County. * WHEN...Until 7 PM CDT this evening. * ADDITIONAL DETAILS...Roads are expected to be become sloppy and slick from the wet snow. Gusty winds will create significant visibility restrictions and buffet high profile vehicles at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ025-037-038-050-280000- /O.CON.KDMX.WW.Y.0028.000000T0000Z-190428T0000Z/ Wright-Hardin-Grundy-Tama- Including the cities of Eagle Grove, Clarion, Belmond, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Tama, Toledo, Traer, Dysart, and Gladbrook 119 PM CDT Sat Apr 27 2019 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Heavy, wet sticky snow expected. Total snow accumulations of 1 to 3 inches. Winds gusting as high as 35 mph at times. * WHERE...North central Iowa. * WHEN...Until 7 PM CDT this evening. * ADDITIONAL DETAILS...Roads may become slippery due to falling snow and gusty winds could cause trouble for high profile vehicles at times and restricted visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ For more information from the National Weather Service visit https://www.weather.gov/desmoines
405 WWUS43 KDMX 271920 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 220 PM CDT Sat Apr 27 2019 ...Spring Snow Winding Down Across Northern Iowa... .Snow intensity is diminishing across Iowa this afternoon. This trend will continue. IAZ005>007-016-017-272030- /O.CAN.KDMX.WS.W.0009.000000T0000Z-190428T0000Z/ Kossuth-Winnebago-Worth-Hancock-Cerro Gordo- Including the cities of Algona, Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Mason City, and Clear Lake 220 PM CDT Sat Apr 27 2019 ...WINTER STORM WARNING IS CANCELLED... The threat for impactful snowfall has ended, therefore the warning is cancelled. $$ IAZ025-026-037-272030- /O.CAN.KDMX.WW.Y.0028.000000T0000Z-190428T0000Z/ Wright-Franklin-Hardin- Including the cities of Eagle Grove, Clarion, Belmond, Hampton, Iowa Falls, Eldora, and Ackley 220 PM CDT Sat Apr 27 2019 ...WINTER WEATHER ADVISORY IS CANCELLED... The threat for impactful snowfall has ended, therefore the advisory is cancelled. $$ IAZ027-028-280000- /O.CON.KDMX.WS.W.0009.000000T0000Z-190428T0000Z/ Butler-Bremer- Including the cities of Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, and Waverly 220 PM CDT Sat Apr 27 2019 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Snow with accumulations of 2 to 5 inches. Wind gusts to 35 mph may also occur. * WHERE...Northeast Iowa. * WHEN...Until 7 PM CDT this evening. * ADDITIONAL DETAILS...Roads are expected to be become sloppy and slick from the wet snow. Gusty winds will create significant visibility restrictions and buffet high profile vehicles at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ038-039-050-280000- /O.CON.KDMX.WW.Y.0028.000000T0000Z-190428T0000Z/ Grundy-Black Hawk-Tama- Including the cities of Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Tama, Toledo, Traer, Dysart, and Gladbrook 220 PM CDT Sat Apr 27 2019 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Snow with accumulations of 1 to 3 inches. Wind gusts of up to 35 mph. * WHERE...Northeast Iowa. * WHEN...Until 7 PM CDT this evening. * ADDITIONAL DETAILS...Roads may become slippery due to falling snow and gusty winds could cause trouble for high profile vehicles at times and restricted visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ For more information from the National Weather Service visit https://www.weather.gov/desmoines
125 WWUS43 KDMX 272035 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 335 PM CDT Sat Apr 27 2019 IAZ027-028-272145- /O.CAN.KDMX.WS.W.0009.000000T0000Z-190428T0000Z/ Butler-Bremer- Including the cities of Parkersburg, Clarksville, Shell Rock, Greene, Aplington, Allison, Dumont, and Waverly 335 PM CDT Sat Apr 27 2019 ...WINTER STORM WARNING IS CANCELLED... Some light snow may persist through 5 PM, however impactful snowfall has ending. Therefore, the warning has been cancelled. $$ IAZ038-039-050-272145- /O.CAN.KDMX.WW.Y.0028.000000T0000Z-190428T0000Z/ Grundy-Black Hawk-Tama- Including the cities of Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Waterloo, Cedar Falls, Tama, Toledo, Traer, Dysart, and Gladbrook 335 PM CDT Sat Apr 27 2019 ...WINTER WEATHER ADVISORY IS CANCELLED... Some light snow may persist through 5 PM, however impactful snowfall has ending. Therefore, the advisory has been cancelled. $$ 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 Apr 26, 12:24 PM CDT, 3 hours earlier.
Area forecast discussion, Apr 26, 12:24 PM CDT, 3 hours before
Area Forecast Discussion National Weather Service Des Moines IA 1224 PM CDT Fri Apr 26 2019 ...Updated 18z Aviation... .SHORT TERM.../Today through Saturday/ Issued at 422 AM CDT Fri Apr 26 2019 The main forecast concern is obviously focused on a potent clipper system ejecting out of the Northern Rockies and bringing the potential for impactful winter weather to portions of Iowa Saturday. Models remain in disagreement with the surface low track, the ECWMF is tracking the low across southern Iowa (basically along Highway 34) while the GFS is the furthest north tracking roughly b/t the Highway 20/Highway 30 corridor. The 26.00z NAM is more along the Interstate 80. The 26.00z HREF has trended closer the NAM/ECMWF with the southern track. Needless to say that the southern tracks would favor more snow in the northern sections of forecast area and utilized a blend of the HREF/GFS/NAM. The timing of this system looks to be from 09z Saturday to late Saturday afternoon (~20-23z), so fairly quick moving and dynamic system. High confidence in the very strong winds with this system and the potential for a small heavy band of snow to set up over northern Iowa. Just a shift in 50-100 miles of the low track will significantly alter the snowfall forecast and the potential for a "bust" is medium to high...at least wrt to the higher snowfall amounts. Yes, the ground has been warm but the snowfall rates should overcome this and the fact that very strong winds coupled with the falling snow should lead to potential for significant travels issues. Confident enough to hoist a Winter Storm Watch across the north for 4+ inches and the strong winds. Potential for an advisory further south as the snow/rain gradient will be cutting a few counties in half where northern portions may see snow accumulations and the southern section all rain. Sharp gradient of temps from north to south tomorrow and trended cooler with temperatures throughout the day. A midnight high is likely or at least prior to 12z Saturday with temperatures slowly dropping throughout the day across northern Iowa. The NAEFS mean 850mb winds shows a 50-55 knot jet punching into southern Iowa by 12z Saturday and the strong WAA is concerning as it may help nudge the low to track slightly further north closer to the GFS solution. No doubt a considerable concern for the low to track a bit further south and change the heavy snow band location. However, only talking about a county or two difference where the heavier snow sets up, not a major shift expected attm. There is an immense amount of frontogenetical forcing, especially between 850-700mb setting up over northern Iowa from around 12z Saturday and continues to through 21z. Plus, very strong forcing within the dendritic layer during this time and even with the aforementioned WAA, there doesn't appear to be a warm layer aloft to deal with and thus the precipitation type is either rain or snow. Confidence is increasing that the snowfall rates look to overcome the warm ground temperatures and the surface temperatures for accumulations to begin from 12-15z Saturday across the far north. There is even some negative EPV suggested via the NAM/GFS and could release CSI resulting in upright convection. Thus, cannot rule out the potential for thundersnow and this scenario would only add to the snowfall rates Saturday morning. The potent PV anomaly punches into the state b/t 15-18z Saturday providing a significant trop fold and intense winds late Saturday morning into the afternoon. Increased winds and gusts Saturday and with the falling snow coinciding with the snowfall across the north, certainly some nasty travel impacts from the visibility restrictions and quickly accumulating snow. .LONG TERM.../Saturday through Thursday/ Issued at 422 AM CDT Fri Apr 26 2019 /Saturday Night through Monday Night/ Confidence: Medium to High Quick and intense storm that hits the region tomorrow is expected to be just east of the area by 00z Sunday with winds relaxing quickly behind the storm as it races east. High pressure bubble will settle into the area but with little separation between the exiting system and another fast moving northern stream storm entering the Northern Rockies...it's likely that skies will remain at least partly cloudy for the night. Lows Saturday night will be quite cold over the new snow cover in the far north. In fact much of the area will likely experience freezing temperatures as far south as southern Iowa. It's possible that freezing conditions/ frost may develop if winds decouple enough between 09-12z. Temperatures should be in the mid 20s north to the lower 30s in the south. On Sunday, the next system will quickly bring stronger thetae advection back into Iowa with decent isentropic lift overcoming the dry air...resulting in showers and possible isolated thunder in the west during the afternoon hours and into the overnight. As the system then pulls east...a break in the rainfall will develop between Monday morning and Tuesday morning. With the stronger push of warmer air Monday, highs will push back into the 50s north and in the lower 60s in the south. This should help melt a the remainder of the snow over northern Iowa. /Tuesday through Thursday/... Confidence: Medium There is better agreement/consensus today with the med range models from Tuesday into Thursday of next week. Both the GFS/Euro are now holding the more significant longwave trough back in the southwest until Tuesday night...then beginning to kick it east/northeast as a stronger northern stream H500 wave drops south into the Northern Rockies. The pattern remains complex with several pieces of energy ejecting from the system and tracking toward the Central US. With the Gulf available for increasing moisture input, showers and thunderstorms are likely to quickly redevelop and lift north into southern Iowa by Tuesday afternoon into Tuesday night. The first leading shortwave will move from the southern Plains into northeast Illinois by 00z Thursday. This will bring a swath of rainfall over Iowa during the day Wednesday eventually tapering off by afternoon. A trailing system will take a more southerly track and just clip southern Iowa with some additional rainfall Thursday afternoon. With clouds and showers being the predominate mode of weather for midweek into Thursday, temperatures may need to be lowered on Wednesday. For now and some uncertainty will use a blended approach. && .AVIATION.../For the 18Z TAFS through 18Z Saturday afternoon/ Issued at 1223 PM CDT Fri Apr 26 2019 Quite conditions for most of Friday. Active weather enters Iowa late Friday Night and continues through Saturday afternoon. For the northeast, heavy snow will impact MCW, and may impact ALO. Other terminals will be impacted by rain. MCW will certainly have periods of IFR and LIFR. Other locations will experience IFR CIGs at some point toward the end of the period. && .DMX WATCHES/WARNINGS/ADVISORIES... Winter Storm Watch from Saturday morning through Saturday evening for IAZ004>007-016-017-026>028. && SHORT TERM...Podrazik LONG TERM...REV AVIATION...Krull
Hazardous weather outlook, Apr 26, 4:26 AM CDT, 10 hours 58 minutes before
Hazardous Weather Outlook National Weather Service Des Moines IA 426 AM CDT Fri Apr 26 2019 IAZ004>007-016-017-026>028-270930- Emmet-Kossuth-Winnebago-Worth-Hancock-Cerro Gordo-Franklin-Butler- Bremer- 426 AM CDT Fri Apr 26 2019 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Today and tonight River Flood Warnings will continue into at least early next week for parts of the upper Des Moines River Basin. 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 is in effect for the area Saturday for moderate to heavy snowfall and strong winds. Please refer to the National Weather Service website at weather.gov/desmoines for further details. A freeze is likely late Saturday night into Sunday morning. River Flood Warnings will continue into at least early next week for parts of the upper Des Moines River Basin. 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 snowfall reports from Saturday's storm would be appreciated. IAZ015-023-025-033>039-044>050-057>062-070>075-081>086-092>097- 270930- Palo Alto-Pocahontas-Wright-Sac-Calhoun-Webster-Hamilton-Hardin- Grundy-Black Hawk-Crawford-Carroll-Greene-Boone-Story-Marshall- Tama-Audubon-Guthrie-Dallas-Polk-Jasper-Poweshiek-Cass-Adair- Madison-Warren-Marion-Mahaska-Adams-Union-Clarke-Lucas-Monroe- Wapello-Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis- 426 AM CDT Fri Apr 26 2019 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 On Saturday, especially in the afternoon, winds will increase to 25 to 30 mph with gusts to 40 to 45 mph at times, causing travel impacts. A freeze is likely late Saturday night into Sunday morning. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. IAZ024-270930- Humboldt- 426 AM CDT Fri Apr 26 2019 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Today and tonight River Flood Warnings will continue into at least early next week for parts of the upper Des Moines River Basin. Please refer to the National Weather Service website at weather.gov/desmoines for further details. .DAYS TWO THROUGH SEVEN...Saturday through Thursday On Saturday, especially in the afternoon, winds will increase to 25 to 30 mph with gusts to 40 to 45 mph at times, causing travel impacts. A freeze is likely late Saturday night into Sunday morning. River Flood Warnings will continue into at least early next week for parts of the upper Des Moines River Basin. Please refer to the National Weather Service website at weather.gov/desmoines for further details. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. REV
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 4:00 AM CDT | Winter Storm Watch | DMX | Bremer, Butler, Cerro Gordo, Emmet, Franklin, Hancock and 3 more | 11 hr |
| Apr 26, 3:24 PM CDT | Winter Weather Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Emmet, Franklin and 9 more | 24 hr |
Nearby
Winter Storm Warnings in Iowa, 2019Every winter storm warning in 2019
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.