Alert archive / Iowa / Winter Storm Warnings in 2018
Winter Storm Warning 2, NWS Des Moines, IA
NWS Des Moines, IA issued this winter storm warning at Jan 20, 2018, 2:56 PM CST for Emmet County, Kossuth County, Palo Alto County, Iowa. It took effect at Jan 21, 2018, 9:00 PM CST. It was in force for . No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 20, 2018, 2:56 PM CST (20:56 UTC)
- In effect from
- Jan 21, 2018, 9:00 PM CST
- Expired
- Jan 21, 2018, 4:47 AM CST
- In force
- Issued by
- NWS Des Moines, IA
Counties Emmet County, IA, Kossuth County, IA, Palo Alto County, IA
The radar
The Des Moines radar (KDMX), 178 km from the middle of the area, began a volume at 21:00 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, 8.9 hours before the alert went out and 195 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
- 1597 m above ground
- 0-6 km bulk shear
- 85 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
821 WWUS43 KDMX 202056 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 256 PM CST Sat Jan 20 2018 ...Winter Storm Will Impact Iowa Sunday through Monday Night... .A wintry mix of precipitation will begin early Sunday morning and last though Monday night. While the precipitation will change from freezing drizzle to drizzle or light rain later Sunday, the most significant impacts will likely occur later Sunday night through Monday night. This is when the precipitation will change from drizzle/rain to a wintry mix and finally snow. Strong winds will arrive on Monday creating areas of blowing and drifting snow, which may enhance travel impacts. IAZ004-005-015-210500- /O.UPG.KDMX.WS.A.0002.180122T0000Z-180123T0600Z/ /O.NEW.KDMX.WS.W.0002.180122T0300Z-180123T0600Z/ Emmet-Kossuth-Palo Alto- Including the cities of Estherville, Algona, and Emmetsburg 256 PM CST Sat Jan 20 2018 ...WINTER STORM WARNING IN EFFECT FROM 9 PM SUNDAY TO MIDNIGHT CST MONDAY NIGHT... * WHAT...Heavy mixed precipitation expected. Plan on difficult travel conditions, including during the morning commute on Monday. Total snow accumulations ranging from 3 to 6 inches over southern parts of Palo Alto and Kossuth Counties to around 12 inches in Emmet County. Ice accumulations up to around one tenth of an inch are expected. * WHERE...Emmet, Kossuth, and Palo Alto Counties. * WHEN...9 PM Sunday to midnight Monday night. * ADDITIONAL DETAILS...Winds gusting as high as 45 mph will cause areas of blowing and drifting snow, along with visibility less than 1 mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice are expected. This 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. $$ IAZ016-023-024-033-034-044-210500- /O.EXB.KDMX.WS.A.0002.180122T0600Z-180123T0600Z/ Hancock-Pocahontas-Humboldt-Sac-Calhoun-Crawford- Including the cities of Garner, Britt, Kanawha, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, and Denison 256 PM CST Sat Jan 20 2018 ...WINTER STORM WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY EVENING... * WHAT...Heavy mixed precipitation possible. Plan on difficult travel conditions, including during the morning commute on Monday. Total ice accumulations of one to two tenths of an inch, and snow accumulations of up to 2 inches, with localized higher amounts are possible. * WHERE...Parts of north central into parts of west central Iowa. * WHEN...From late Sunday night through Monday evening. * ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause areas of blowing and drifting snow, along with visibility less than 1 mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Watch means there is potential for significant snow, sleet or ice accumulations that may impact travel. Continue to monitor the latest forecasts. $$ IAZ006-007-210500- /O.EXT.KDMX.WS.A.0002.180122T0600Z-180123T0600Z/ Winnebago-Worth- Including the cities of Forest City, Lake Mills, Northwood, and Manly 256 PM CST Sat Jan 20 2018 ...WINTER STORM WATCH NOW IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY EVENING... * WHAT...Heavy mixed precipitation possible. Plan on difficult travel conditions, including during the morning commute on Monday. Total snow accumulations of 3 to 6 inches, with localized amounts over 8 inches in northwest Winnebago County, and ice accumulations of one to two tenths of an inch are possible. * WHERE...Winnebago and Worth Counties. * WHEN...From late Sunday night through Monday evening. * ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause patchy blowing and drifting snow, along with visibility less than 1 mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Watch means there is potential for significant snow, sleet or ice accumulations that may impact travel. Continue to monitor the latest forecasts. $$ For more information from the National Weather Service visit http://weather.gov/desmoines Ansorge
2 follow-up statements
519 WWUS43 KDMX 210317 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 917 PM CST Sat Jan 20 2018 ...Winter Storm Will Impact Iowa Sunday through Monday Night... .A wintery mix of precipitation will begin mid to late Sunday morning and last though Monday night. Precipitation on Sunday will begin as freezing drizzle then transition to drizzle. The most significant impacts will likely occur later Sunday night through Monday night. This is when the precipitation will change to snow. Strong wind will arrive on Monday creating areas of blowing and drifting snow, which may enhance travel impacts. IAZ004-005-015-211130- /O.CON.KDMX.WS.W.0002.180122T0300Z-180123T0600Z/ Emmet-Kossuth-Palo Alto- Including the cities of Estherville, Algona, and Emmetsburg 917 PM CST Sat Jan 20 2018 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 PM SUNDAY TO MIDNIGHT CST MONDAY NIGHT... * WHAT...Heavy mixed precipitation expected. Plan on difficult travel conditions, including the morning commute on Monday. Total snow accumulations of 5 to 8 inches, with localized amounts up to 13 inches in Emmet County, and ice accumulations of one tenth to two tenths of an inch are expected. * WHERE...Emmet, Kossuth, and Palo Alto Counties. * WHEN...9 PM Sunday to midnight Monday night. * ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause patchy blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice are expected. This will make travel very hazardous or impossible. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ IAZ006-007-016-023-024-033-034-044-211130- /O.CON.KDMX.WS.A.0002.180122T0600Z-180123T0600Z/ Winnebago-Worth-Hancock-Pocahontas-Humboldt-Sac-Calhoun-Crawford- Including the cities of Forest City, Lake Mills, Northwood, Manly, Garner, Britt, Kanawha, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, and Denison 917 PM CST Sat Jan 20 2018 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY EVENING... * WHAT...Heavy mixed precipitation possible. Plan on difficult travel conditions, including during the morning commute on Monday. Total snow accumulations of 1 to 3 inches, and ice accumulations of up to one tenth of an inch are possible. * WHERE...Parts of north central into parts of west central Iowa. * WHEN...From late Sunday night through Monday evening. * ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause patchy blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Watch means there is potential for significant snow, sleet or ice accumulations that may impact travel. Continue to monitor the latest forecasts. $$ FAB For more information from the National Weather Service visit http://weather.gov/desmoines
336 WWUS43 KDMX 211047 WSWDMX URGENT - WINTER WEATHER MESSAGE National Weather Service Des Moines IA 447 AM CST Sun Jan 21 2018 ...Blizzard conditions to Impact Portions of Iowa Tonight Through Monday Night... .A winter storm will churn towards Iowa, arriving early tonight. Wintry precipitation will fall in the form of ice before changing to snow late tonight. Additionally, strong winds will arrive tonight, serving as a catalyst for hazardous impacts as blizzard and winter storm conditions affect portions of Iowa. IAZ044-211200- /O.CAN.KDMX.WS.A.0002.180122T0600Z-180123T0600Z/ Crawford- Including the city of Denison 447 AM CST Sun Jan 21 2018 ...WINTER STORM WATCH IS CANCELLED... At this time, it appears the most hazardous wintry weather will be north and west of Crawford county. However, several inches of snow is possible, along with gusty winds. Further headlines may still be necessary in Crawford county, and may be issued this afternoon. $$ IAZ004-005-015-212315- /O.UPG.KDMX.WS.W.0002.180122T0300Z-180123T0600Z/ /O.NEW.KDMX.BZ.W.0001.180122T0300Z-180123T0600Z/ Emmet-Kossuth-Palo Alto- Including the cities of Estherville, Algona, and Emmetsburg 447 AM CST Sun Jan 21 2018 ...BLIZZARD WARNING IN EFFECT FROM 9 PM THIS EVENING TO MIDNIGHT CST MONDAY NIGHT... * WHAT...Blizzard conditions expected. Travel will be very dangerous to impossible, including during the morning commute on Monday. Tree branches and limbs could fall as well...possibly impacting power lines. Total snow accumulations of 6 to 9 inches, with localized amounts up to 12 inches towards Estherville, are expected. * WHERE...Portions of north-central to northwestern Iowa. * WHEN...9 PM today to midnight Monday night. * ADDITIONAL DETAILS...Winds gusting as high as 45 mph may cause whiteout conditions in blowing snow. Significant drifting of the snow is likely. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ IAZ006-023-033-212315- /O.UPG.KDMX.WS.A.0002.180122T0600Z-180123T0600Z/ /O.NEW.KDMX.BZ.W.0001.180122T0600Z-180123T0600Z/ Winnebago-Pocahontas-Sac- Including the cities of Forest City, Lake Mills, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Sac City, Lake View, Odebolt, Wall Lake, Schaller, and Early 447 AM CST Sun Jan 21 2018 ...BLIZZARD WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT CST MONDAY NIGHT... * WHAT...Blizzard conditions expected. Travel will be very dangerous to impossible, including during the morning commute on Monday. Total snow accumulations of 3 to 6 inches, with higher localized amounts, are expected. This may down smaller tree branches. * WHERE...North-central to northwestern Iowa. * WHEN...Midnight to midnight Monday night. * ADDITIONAL DETAILS...Winds gusting as high as 45 mph may cause whiteout conditions in blowing snow. Significant drifting of the snow is likely. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ IAZ007-016-024-034-212315- /O.UPG.KDMX.WS.A.0002.180122T0600Z-180123T0600Z/ /O.NEW.KDMX.WS.W.0003.180122T0600Z-180123T0600Z/ Worth-Hancock-Humboldt-Calhoun- Including the cities of Northwood, Manly, Garner, Britt, Kanawha, Humboldt, Rockwell City, Manson, Lake City, and Pomeroy 447 AM CST Sun Jan 21 2018 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT CST MONDAY NIGHT... * WHAT...Heavy mixed precipitation expected. Plan on difficult travel conditions, including during the evening commute on Monday. Total snow accumulations of 2 to 4 inches, with localized amounts up to 6 inches, and ice accumulations of a light glaze are expected. * WHERE...Portions of northern to northwestern Iowa. * WHEN...Midnight to midnight Monday night. * ADDITIONAL DETAILS...Winds gusting as high as 45 mph will cause patchy blowing and drifting snow. Visibility may be less than 1 mile during periods of heavier snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice are expected. This 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. $$ For more information from the National Weather Service visit http://weather.gov/desmoines Kotenberg
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.