Alert archive / South Dakota / Blizzard Warnings in 2026
Blizzard Warning 2, NWS Aberdeen, SD
NWS Aberdeen, SD issued this blizzard warning at Feb 18, 2026, 4:36 AM CST for 9 counties in South Dakota. It was in force for 10 hr. 17 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
- Feb 18, 2026, 4:36 AM CST (10:36 UTC)
- Expired
- Feb 18, 2026, 3:00 PM CST
- In force
- 10 hr
- Issued by
- NWS Aberdeen, SD
Counties Brown County, SD, Campbell County, SD, Clark County, SD, Day County, SD, Edmunds County, SD, Faulk County, SD, McPherson County, SD, Spink County, SD, Walworth County, SD
The radar
The Aberdeen radar (KABR), 36 km from the middle of the area, began a volume at 10:37 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 |
|---|---|---|---|
| Feb 18, 6:00 AM CST | SNOW 2.7 | Clark, SD | CO-OP Observer station CAKS2 Clark. |
| Feb 18, 7:00 AM CST | SNOW 1.1 | 2 Se Roslyn, SD | Cocorahs station SD-DY-17 Roslyn 2 SE. |
| Feb 18, 7:00 AM CST | SNOW 1.3 | 11 Sw Eureka, SD | Cocorahs station SD-CP-9 Eureka 11 WSW. |
| Feb 18, 7:00 AM CST | SNOW 1.5 | 2 Sse Claremont, SD | Cocorahs station SD-BR-3 Claremont 2 SSE. |
| Feb 18, 7:00 AM CST | SNOW 3 | 3 Nw Westport, SD | CO-OP Observer station WPTS2 Westport 2 NW. |
| Feb 18, 7:30 AM CST | BLIZZARD | Roscoe, SD | Blizzard conditions from 4 AM to 730 AM based on Roscoe SDDOT obs and webcam. Winds gusted between 50 and 64 mph during that time, with visibility down to a quarter mile. Visibility increased above a quarter mile after 730 AM as the snow ended. |
| Feb 18, 7:35 AM CST | BLIZZARD | Aberdeen Regional Airpo, SD | Blizzard conditions have been ongoing since 434 AM. Visibility at a quarter mile and winds gusting between 40 and 55 mph. Peak gust of 61 mph. ASOS station KABR Aberdeen Rgnl AP. |
| Feb 18, 8:00 AM CST | SNOW 1 | 2 S Doland, SD | CO-OP Observer station DOLS2 Doland 2 S. |
| Feb 18, 8:00 AM CST | SNOW 1 | 7 Wnw Hecla, SD | Cocorahs station SD-BR-4 Hecla 7 WNW. |
| Feb 18, 8:00 AM CST | SNOW 1.4 | 1 Nnw Eureka, SD | CO-OP Observer station ERKS2 Eureka. |
| Feb 18, 10:00 AM CST | BLIZZARD | 2 N Herreid, SD | Blizzard conditions on Herreid SDDOT station observations and webcam. Winds gusted between 40 and 50 mph after 1 am and into the afternoon. Webcam showed visibility to a quarter mile up to 10 am, then improved as the snow ended. |
| Feb 18, 12:00 PM CST | SNOW 1 | Andover, SD | CO-OP Observer station ANVS2 Andover. |
| Feb 18, 12:00 PM CST | SNOW 3.6 | Aberdeen Regional Airpo, SD | Total storm snowfall 3.6 inches. |
| Feb 18, 12:26 PM CST | BLIZZARD | 3 S Conde, SD | South Dakota DOT RWIS cam 3 miles south of Conde continues to indicate 0.25 to 0.5 mile visibility or less with blizzard conditions. These conditions have been ongoing since at least 658am. Peak winds at the RWIS include a gust to 65 at 602am with winds rangin |
| Feb 18, 12:34 PM CST | BLIZZARD | 10 Sw Long Lake, SD | Blizzard conditions on SDDOT obs and webcam. Winds above 35 mph since 147 am and frequently gusted between 40-55 mph. Webcam showed visibility at or below a quarter mile since daybreak. Visibility now up to a half mile. Mesonet station 184 Eureka (SDDOT). |
| Feb 18, 1:00 PM CST | BLIZZARD | Andover, SD | From 722am the South Dakota DOT RWIS webcam at Andover recorded visibility between 0.25 miles and 0.5 miles or less. Winds through that period gusted between 35 and 45 mph. |
| Feb 18, 1:00 PM CST | BLIZZARD | Clark, SD | Visibility at 5am was 0.25 miles or less, and has remained around that low through 1pm. Just beginning to improve. Winds measured at SDSU mesonet station 7 miles northwest of Clark between 40 and 50 mph. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 10.6 hours before the alert went out and 62 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
- 780 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 391 m²/s²
- 0-3 km storm-relative helicity
- 474 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
581 WWUS43 KABR 181036 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 436 AM CST Wed Feb 18 2026 SDZ004-005-009-010-017-182045- /O.UPG.KABR.WW.Y.0006.000000T0000Z-260218T1800Z/ /O.NEW.KABR.BZ.W.0002.260218T1036Z-260218T2100Z/ Campbell-McPherson-Walworth-Edmunds-Faulk- Including the cities of Faulkton, Herreid, Eureka, Mobridge, and Ipswich 436 AM CST Wed Feb 18 2026 ...BLIZZARD WARNING IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Blizzard conditions. Additional snow accumulations up to one inch. Winds gusting as high as 55 mph. * WHERE...Campbell, Edmunds, Faulk, McPherson, and Walworth Counties. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Ground blizzards create whiteout conditions that make travel extremely dangerous or impossible. The hazardous conditions could impact the Wednesday morning commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions can be obtained by calling 5 1 1. && $$ SDZ006-018-019-182045- /O.UPG.KABR.WW.Y.0006.000000T0000Z-260218T2100Z/ /O.NEW.KABR.BZ.W.0002.260218T1036Z-260218T2100Z/ Brown-Spink-Clark- Including the cities of Aberdeen, Clark, and Redfield 436 AM CST Wed Feb 18 2026 ...BLIZZARD WARNING IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Blizzard conditions. Additional snow accumulations up to two inches. Winds gusting as high as 55 mph. * WHERE...Brown, Clark, and Spink Counties. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Ground blizzards create whiteout conditions that make travel extremely dangerous or impossible. The hazardous conditions could impact the Wednesday morning commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions can be obtained by calling 5 1 1. && $$ MNZ039-046-SDZ008-021-182045- /O.CON.KABR.WW.Y.0006.000000T0000Z-260218T2100Z/ Traverse-Big Stone-Roberts-Grant- Including the cities of Milbank, Sisseton, Wheaton, and Ortonville 436 AM CST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Snow and areas of blowing snow. Additional snow accumulations up to two inches. Winds gusting as high as 55 mph. * WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Grant and Roberts Counties. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Falling and blowing snow will lead to areas of quick and sudden reductions to visibility, making travel difficult, especially in rural areas that are prone to blowing snow. The hazardous conditions could impact the Wednesday morning commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. In Minnesota, the latest road conditions can be obtained at 511mn.org, or by calling 5 1 1. In South Dakota, the latest road conditions can be obtained by calling 5 1 1. && $$ SDZ003-181800- /O.CON.KABR.WW.Y.0006.000000T0000Z-260218T1800Z/ Corson- Including the cities of McIntosh 336 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Snow. Additional snow accumulations up to one inch. Winds gusting as high as 55 mph. * WHERE...Corson County. * WHEN...Until 11 AM MST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ SDZ007-011-182045- /O.CON.KABR.WW.Y.0006.000000T0000Z-260218T2100Z/ Marshall-Day- Including the cities of Britton and Webster 436 AM CST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Snow and widespread blowing snow. Additional snow accumulations between 2 and 4 inches. Winds gusting as high as 50 mph. * WHERE...Day and Marshall Counties. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Falling and blowing snow, frequently reducing visibility below a half mile, will make travel dangerous, especially in open country. The hazardous conditions could impact the Wednesday morning commute. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ SDZ020-022-023-182045- /O.CON.KABR.WW.Y.0006.000000T0000Z-260218T2100Z/ Codington-Hamlin-Deuel- Including the cities of Hayti, Watertown, and Clear Lake 436 AM CST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Snow and areas of blowing snow. Additional snow accumulations up to one inch. Winds gusting as high as 55 mph. * WHERE...Codington, Deuel, and Hamlin Counties. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Blowing snow will lead to areas of quick and sudden reductions to visibility, making travel difficult, especially in rural areas that are prone to blowing snow. The hazardous conditions could impact the Wednesday morning commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ BC
4 follow-up statements
954 WWUS43 KABR 181228 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 628 AM CST Wed Feb 18 2026 SDZ011-182100- /O.UPG.KABR.WW.Y.0006.000000T0000Z-260218T2100Z/ /O.EXA.KABR.BZ.W.0002.000000T0000Z-260218T2100Z/ Day- Including the cities of Webster 628 AM CST Wed Feb 18 2026 ...BLIZZARD WARNING IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Blizzard conditions. Additional snow accumulations between 2 and 4 inches. Winds gusting as high as 60 mph. * WHERE...Day County. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Ground blizzards create whiteout conditions that make travel extremely dangerous or impossible. The hazardous conditions could impact the Wednesday morning commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions can be obtained by calling 5 1 1. && $$ SDZ004>006-009-010-017>019-182100- /O.CON.KABR.BZ.W.0002.000000T0000Z-260218T2100Z/ Campbell-McPherson-Brown-Walworth-Edmunds-Faulk-Spink-Clark- Including the cities of Aberdeen, Eureka, Clark, Faulkton, Redfield, Herreid, Ipswich, and Mobridge 628 AM CST Wed Feb 18 2026 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Blizzard conditions. Additional snow accumulations up to two inches. Winds gusting as high as 60 mph. * WHERE...Portions of north central and northeast South Dakota. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Ground blizzards create whiteout conditions that make travel extremely dangerous or impossible. The hazardous conditions could impact the Wednesday morning commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions can be obtained by calling 5 1 1. && $$ MNZ039-046-SDZ008-021-182100- /O.CON.KABR.WW.Y.0006.000000T0000Z-260218T2100Z/ Traverse-Big Stone-Roberts-Grant- Including the cities of Sisseton, Wheaton, Ortonville, and Milbank 628 AM CST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Snow and widespread blowing snow. Additional snow accumulations up to two inches. Winds gusting as high as 55 mph. * WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Grant and Roberts Counties. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Falling and blowing snow, frequently reducing visibility below a half mile, will make travel dangerous, especially in open country. The hazardous conditions could impact the Wednesday morning commute. Very strong winds could cause extensive tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. In Minnesota, the latest road conditions can be obtained at 511mn.org, or by calling 5 1 1. In South Dakota, the latest road conditions can be obtained by calling 5 1 1. && $$ SDZ003-181800- /O.CON.KABR.WW.Y.0006.000000T0000Z-260218T1800Z/ Corson- Including the cities of McIntosh 528 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Snow. Additional snow accumulations up to one inch. Winds gusting as high as 60 mph. * WHERE...Corson County. * WHEN...Until 11 AM MST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ SDZ007-182100- /O.CON.KABR.WW.Y.0006.000000T0000Z-260218T2100Z/ Marshall- Including the cities of Britton 628 AM CST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Snow and widespread blowing snow. Additional snow accumulations between 2 and 4 inches. Winds gusting as high as 55 mph. * WHERE...Marshall County. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Widespread blowing snow, frequently reducing visibility below a half mile, will make travel dangerous, especially in open country. The hazardous conditions could impact the Wednesday morning commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ SDZ020-022-023-182100- /O.CON.KABR.WW.Y.0006.000000T0000Z-260218T2100Z/ Codington-Hamlin-Deuel- Including the cities of Hayti, Clear Lake, and Watertown 628 AM CST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Snow and areas of blowing snow. Additional snow accumulations up to one inch. Winds gusting as high as 60 mph. * WHERE...Codington, Deuel, and Hamlin Counties. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Blowing snow will lead to areas of quick and sudden reductions to visibility, making travel difficult, especially in rural areas that are prone to blowing snow. The hazardous conditions could impact the Wednesday morning commute. Very strong winds could cause extensive tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ 10
921 WWUS43 KABR 181352 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 752 AM CST Wed Feb 18 2026 SDZ004>006-009-010-017>019-182100- /O.CON.KABR.BZ.W.0002.000000T0000Z-260218T2100Z/ Campbell-McPherson-Brown-Walworth-Edmunds-Faulk-Spink-Clark- Including the cities of Faulkton, Eureka, Redfield, Herreid, Ipswich, Aberdeen, Clark, and Mobridge 752 AM CST Wed Feb 18 2026 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Blizzard conditions. Additional snow accumulations up to two inches. Winds gusting as high as 60 mph. * WHERE...Portions of north central and northeast South Dakota. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Ground blizzards create whiteout conditions that make travel extremely dangerous or impossible. The hazardous conditions could impact the Wednesday morning commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions can be obtained by calling 5 1 1. && $$ SDZ011-182100- /O.CON.KABR.BZ.W.0002.000000T0000Z-260218T2100Z/ Day- Including the cities of Webster 752 AM CST Wed Feb 18 2026 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Blizzard conditions. Additional snow accumulations between 1 and 3 inches. Winds gusting as high as 60 mph. * WHERE...Day County. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Whiteout conditions will make travel extremely dangerous or impossible. The hazardous conditions could impact the Wednesday morning commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions can be obtained by calling 5 1 1. && $$ MNZ039-046-SDZ008-021-182100- /O.CON.KABR.WW.Y.0006.000000T0000Z-260218T2100Z/ Traverse-Big Stone-Roberts-Grant- Including the cities of Milbank, Wheaton, Sisseton, and Ortonville 752 AM CST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Snow and widespread blowing snow. Additional snow accumulations up to two inches. Winds gusting as high as 55 mph. * WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Grant and Roberts Counties. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Falling and blowing snow, frequently reducing visibility below a half mile, will make travel dangerous, especially in open country. The hazardous conditions could impact the Wednesday morning commute. Very strong winds could cause extensive tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. In Minnesota, the latest road conditions can be obtained at 511mn.org, or by calling 5 1 1. In South Dakota, the latest road conditions can be obtained by calling 5 1 1. && $$ SDZ003-181800- /O.CON.KABR.WW.Y.0006.000000T0000Z-260218T1800Z/ Corson- Including the cities of McIntosh 652 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Snow. Additional snow accumulations up to one inch. Winds gusting as high as 55 mph. * WHERE...Corson County. * WHEN...Until 11 AM MST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ SDZ007-182100- /O.CON.KABR.WW.Y.0006.000000T0000Z-260218T2100Z/ Marshall- Including the cities of Britton 752 AM CST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Snow and widespread blowing snow. Additional snow accumulations between 1 and 3 inches. Winds gusting as high as 55 mph. * WHERE...Marshall County. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Falling and blowing snow, frequently reducing visibility below a half mile, will make travel dangerous, especially in open country. The hazardous conditions could impact the Wednesday morning commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ SDZ020-022-023-182100- /O.CON.KABR.WW.Y.0006.000000T0000Z-260218T2100Z/ Codington-Hamlin-Deuel- Including the cities of Hayti, Clear Lake, and Watertown 752 AM CST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Snow and widespread blowing snow. Additional snow accumulations up to one inch. Winds gusting as high as 55 mph. * WHERE...Codington, Deuel, and Hamlin Counties. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Falling and blowing snow, frequently reducing visibility below a half mile, will make travel dangerous, especially in open country. The hazardous conditions could impact the Wednesday morning commute. Very strong winds could cause extensive tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ 06
224 WWUS43 KABR 181754 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 1154 AM CST Wed Feb 18 2026 SDZ003-181900- /O.EXP.KABR.WW.Y.0006.000000T0000Z-260218T1800Z/ Corson- Including the cities of McIntosh 1054 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS MORNING... Light snow will continue to diminish. Roads may still be snow covered and slippery. As winds continue to diminish, blowing snow will slowly diminish. $$ SDZ004>006-009-010-017>019-182100- /O.CON.KABR.BZ.W.0002.000000T0000Z-260218T2100Z/ Campbell-McPherson-Brown-Walworth-Edmunds-Faulk-Spink-Clark- Including the cities of Faulkton, Eureka, Redfield, Herreid, Ipswich, Aberdeen, Clark, and Mobridge 1154 AM CST Wed Feb 18 2026 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Blizzard conditions. Additional snow accumulations up to one inch. Winds gusting as high as 55 mph. * WHERE...Portions of north central and northeast South Dakota. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Ground blizzards create whiteout conditions that make travel extremely dangerous or impossible. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions can be obtained by calling 5 1 1. && $$ SDZ011-182100- /O.CON.KABR.BZ.W.0002.000000T0000Z-260218T2100Z/ Day- Including the cities of Webster 1154 AM CST Wed Feb 18 2026 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Blizzard conditions. Additional snow accumulations up to one inch. Winds gusting as high as 50 mph. * WHERE...Day County. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Whiteout conditions will make travel extremely dangerous or impossible. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions can be obtained by calling 5 1 1. && $$ MNZ039-046-SDZ008-021-182100- /O.CON.KABR.WW.Y.0006.000000T0000Z-260218T2100Z/ Traverse-Big Stone-Roberts-Grant- Including the cities of Milbank, Wheaton, Sisseton, and Ortonville 1154 AM CST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Snow and widespread blowing snow. Additional snow accumulations up to one inch. Winds gusting as high as 50 mph. * WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Grant and Roberts Counties. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Falling and blowing snow, frequently reducing visibility below a half mile, will make travel dangerous, especially in open country. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. In Minnesota, the latest road conditions can be obtained at 511mn.org, or by calling 5 1 1. In South Dakota, the latest road conditions can be obtained by calling 5 1 1. && $$ SDZ007-182100- /O.CON.KABR.WW.Y.0006.000000T0000Z-260218T2100Z/ Marshall- Including the cities of Britton 1154 AM CST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Snow and widespread blowing snow. Additional snow accumulations up to one inch. Winds gusting as high as 45 mph. * WHERE...Marshall County. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Falling and blowing snow, frequently reducing visibility below a half mile, will make travel dangerous, especially in open country. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ SDZ020-022-023-182100- /O.CON.KABR.WW.Y.0006.000000T0000Z-260218T2100Z/ Codington-Hamlin-Deuel- Including the cities of Hayti, Clear Lake, and Watertown 1154 AM CST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Snow and widespread blowing snow. Additional snow accumulations up to one inch. Winds gusting as high as 55 mph. * WHERE...Codington, Deuel, and Hamlin Counties. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Widespread blowing snow, frequently reducing visibility below a half mile, will make travel dangerous, especially in open country. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ 06
746 WWUS43 KABR 182055 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 255 PM CST Wed Feb 18 2026 SDZ004>006-009>011-017>019-182200- /O.EXP.KABR.BZ.W.0002.000000T0000Z-260218T2100Z/ Campbell-McPherson-Brown-Walworth-Edmunds-Day-Faulk-Spink-Clark- Including the cities of Faulkton, Eureka, Webster, Redfield, Herreid, Ipswich, Aberdeen, Clark, and Mobridge 255 PM CST Wed Feb 18 2026 ...BLIZZARD WARNING WILL EXPIRE AT 3 PM CST THIS AFTERNOON... Winds gusting 35 to 45 miles an hour and lingering light snow or snow that has already fallen will result in short term reductions in visibilities this afternoon, particularly over open area. $$ SDZ007-020>023-182200- /O.EXP.KABR.WW.Y.0006.000000T0000Z-260218T2100Z/ Marshall-Codington-Grant-Hamlin-Deuel- Including the cities of Hayti, Britton, Milbank, Clear Lake, and Watertown 255 PM CST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 3 PM CST THIS AFTERNOON... Winds gusting 35 to 45 miles an hour and lingering light snow or snow that has already fallen will result in short term reductions in visibilities this afternoon, particularly over open area. $$ MNZ039-046-SDZ008-182300- /O.EXT.KABR.WW.Y.0006.000000T0000Z-260218T2300Z/ Traverse-Big Stone-Roberts- Including the cities of Wheaton, Sisseton, and Ortonville 255 PM CST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 5 PM CST THIS AFTERNOON... * WHAT...Snow and areas of blowing snow. Additional snow accumulations up to one inch. Winds gusting as high as 45 mph. * WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Roberts County. * WHEN...Until 5 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Falling and blowing snow will lead to areas of quick and sudden reductions to visibility, making travel difficult, especially in rural areas that are prone to blowing snow. The hazardous conditions could impact the Wednesday evening commute. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. In Minnesota, the latest road conditions can be obtained at 511mn.org, or by calling 5 1 1. In South Dakota, the latest road conditions can be obtained by calling 5 1 1. && $$ 06
What forecasters said that day
The local office's own words before this blizzard warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Aberdeen, SD wrote its last area forecast discussion before this blizzard warning went out at Feb 18, 1:22 AM CST, 3 hours 14 minutes earlier. Its key messages:
- Rain transitions to snow this morning, mainly accumulating over northeastern South Dakota and western Minnesota through this afternoon. Up to 2" broadly expected, with some localized areas in northeast South Dakota possibly seeing up to 4".
- Strong winds continue this morning, gusting between 45 and 55 miles per hour. A Wind Advisory is in effect for all South Dakota counties through 12 PM central today. Winds are expected to decrease this afternoon.
- The combination of strong winds and falling snow will reduce visibility over northeastern South Dakota and western Minnesota this morning, down to a half to a quarter of a mile possible at times. Therefore, a Winter Weather Advisory has been issued for parts of northeastern South Dakota and western Minnesota through 3 PM central today.
Area forecast discussion, Feb 18, 1:22 AM CST, 3 hours 14 minutes before
Area Forecast Discussion
National Weather Service Aberdeen SD
122 AM CST Wed Feb 18 2026
.KEY MESSAGES...
- Rain transitions to snow this morning, mainly accumulating over
northeastern South Dakota and western Minnesota through this
afternoon. Up to 2" broadly expected, with some localized areas in
northeast South Dakota possibly seeing up to 4".
- Strong winds continue this morning, gusting between 45 and 55
miles per hour. A Wind Advisory is in effect for all South Dakota
counties through 12 PM central today. Winds are expected to decrease
this afternoon.
- The combination of strong winds and falling snow will reduce
visibility over northeastern South Dakota and western Minnesota this
morning, down to a half to a quarter of a mile possible at times.
Therefore, a Winter Weather Advisory has been issued for parts of
northeastern South Dakota and western Minnesota through 3 PM central
today.
&&
.DISCUSSION...
Issued at 120 AM CST Wed Feb 18 2026
Keeping a close eye on wind observations early this morning as the
low pressure center makes its way in. Seeing some isolated, brief
gusts up above 55 mph along the frontal boundary, but for the most
part gusts remain between 45-50 mph. This is in line with the
expectations from the Wind Advisory currently in effect for all
South Dakota counties, which is set to expire by 18Z this afternoon.
Observations are also indicating that mainly rain is falling early
this morning, and temperatures are expected to remain warm enough
overnight to continue that trend out ahead of the front.
Still anticipating a transition from rain to snow later this morning
as the front passes through the area and temperatures drop. Snow is
mainly expected to stay over northeastern South Dakota into western
Minnesota, with central and north central South Dakota remaining dry
after this initial rain push overnight. A southerly shift in high-
resolution model guidance has significantly increased the amount of
snow that is expected once the transition occurs. What was once a
forecast of less than one inch across northeast SD/western MN now
sits at up to 2" from Brown county and east. Portions of Day and
Marshall counties may see even higher, up to 4" in total through the
event. The additional factor that needs to be considered with this
system is that during the time frame when the heaviest expected
snowfall will be (this morning between 6 am and noon central), the
area will be hanging on to the strong northwesterly winds mentioned
above that have prompted the Wind Advisory. Therefore, falling snow
will combine with these winds to reduce visibilities, at times less
than half a mile. Due to these visibility reductions and the
increased snowfall totals, a Winter Weather Advisory has been issued
for parts of northeastern South Dakota (Brown County and east) as
well as western Minnesota from 12Z through 21Z. Consideration was
given to a Blizzard Warning, but confidence was not quite high
enough in the consistency or longevity of snowfall rates sufficient
to cause extended visibility reductions of a quarter mile or less,
particularly with no snow currently on the ground. However,
conditions remain borderline, and it would not be entirely
surprising to see some areas reach that quarter mile visibility at
some point this morning.
Shifting focus to central South Dakota today, low post-frontal dew
points (down into the low double digits by the afternoon) will once
again facilitate afternoon humidity values between 20-30%, with the
lowest located over Jones and Lyman counties. This combined with the
strong winds may cause some elevated fire weather concerns over that
area this afternoon. However, winds are set to decrease this
afternoon through this evening, meaning that the strongest winds
will not line up with the lowest humidity. It will depend a little
bit upon how long the winds are able to hang on, but at this time
Red Flag conditions are not anticipated today despite the elevated
concerns.
Looking to Thursday, previous forecasts had focused on the potential
for a band of snow over parts of central South Dakota. Latest model
guidance indicates that this band has shifted south, nearly out of
the forecast area entirely. As it stands now, only a couple of
tenths of snow is expected, and if this southerly trend continues
central South Dakota will remain dry. There is some signal for some
light snow over northeastern South Dakota on Thursday lingering from
the departing low pressure center, but little to no accumulation is
expected in that area on Thursday at this point.
After these precipitation systems move out of the area, the new
upper-level pattern of a trough over the western CONUS will lead to
normal to slightly below normal temperatures for mid-February
through the weekend. Pattern will begin to shift once again early
next week, increasing temperatures to slightly above normal. At this
time, dry conditions are expected through the weekend, and there are
no systems beyond this weekend that are worth diving into just yet.
&&
.AVIATION /06Z TAFS THROUGH 06Z THURSDAY/...
Issued at 1155 PM CST Tue Feb 17 2026
Terminals KABR,KATY,KPIR,KMBG
Areas of -SHRA/SHRA and -RA/RA will continue across the KABR/KATY
terminals through the overnight period before switching to -sn/sn
early Wednesday morning with generally MVFR VSBY expected within
moderate precipitation. CIGs will generally be MVFR as well,
although IFR cannot be ruled out at times. Precipitation has
switched to -SN/SN at KMBG and will continue for a couple more
hours before ending, with IFR VSBY possible. KPIR will be least
affected by all of this, and may in fact be primarily VFR through
the TAF period.
Strong west-northwest surface winds have already begun across
KPIR/KMBG and will eventually spread into KABR/KATY through the
overnight hours. Gusts from 35 to 45 knots can be expected. Once
the rain switches to snow at KABR/KATY, the potential for
occasionally significant reductions in visibility in
falling/blowing snow will develop.
&&
.ABR WATCHES/WARNINGS/ADVISORIES...
SD...Winter Weather Advisory from 6 AM this morning to 3 PM CST this
afternoon for SDZ006>008-011-021.
Wind Advisory until noon CST /11 AM MST/ today for SDZ003>011-
015>023-033>037-045-048-051.
MN...Winter Weather Advisory from 6 AM this morning to 3 PM CST this
afternoon for MNZ039-046.
&&
DISCUSSION...BC
AVIATION...10Hazardous weather outlook, Feb 18, 3:17 AM CST, 1 hour 19 minutes before
Hazardous Weather Outlook National Weather Service Aberdeen SD 317 AM CST Wed Feb 18 2026 SDZ003>005-009-010-015>017-033>037-045-048-051-190930- Corson-Campbell-McPherson-Walworth-Edmunds-Dewey-Potter-Faulk- Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo- 317 AM CST Wed Feb 18 2026 /217 AM MST Wed Feb 18 2026/ This Hazardous Weather Outlook is for central South Dakota and north central South Dakota. .DAY ONE...Today and tonight. Strong westerly winds of 30 to 40 miles per hour gusting up to 55 miles per hour will continue this morning. Winds this strong may make travel difficult, especially for high profile vehicles. A Wind Advisory will remain in effect until 12 PM CST / 11 AM CST today. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. SDZ018>020-022-023-190930- Spink-Clark-Codington-Hamlin-Deuel- 317 AM CST Wed Feb 18 2026 This Hazardous Weather Outlook is for northeast South Dakota. .DAY ONE...Today and tonight. Strong westerly winds of 30 to 40 miles per hour gusting up to 55 miles per hour will continue this morning. Winds this strong may make travel difficult, especially for high profile vehicles. A Wind Advisory will remain in effect until 12 PM CST today. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. SDZ006-008-021-190930- Brown-Roberts-Grant- 317 AM CST Wed Feb 18 2026 This Hazardous Weather Outlook is for northeast South Dakota. .DAY ONE...Today and tonight. Up to two inches of snow expected over parts of northeastern South Dakota today. Wind gusts up to 55 miles per hour will also be possible this morning, and a Wind Advisory is in effect until 12 PM CST today. The combination of strong winds and falling snow will cause reductions in visibility this morning, down to half or a quarter of a mile at times. Travel will be difficult, and plan on slippery road conditions for the morning commute! A Winter Weather Advisory is in effect from 6 AM CST through 3 PM CST today. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MNZ039-046-190930- Traverse-Big Stone- 317 AM CST Wed Feb 18 2026 This Hazardous Weather Outlook is for west central Minnesota. .DAY ONE...Today and tonight. Up to two inches of snow expected over west central Minnesota today. The combination of strong winds and falling snow will cause reductions in visibility this morning, down to half or a quarter of a mile at times. Travel will be difficult, and plan on slippery road conditions for the morning commute! A Winter Weather Advisory is in effect from 6 AM CST through 3 PM CST today. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. SDZ007-011-190930- Marshall-Day- 317 AM CST Wed Feb 18 2026 This Hazardous Weather Outlook is for northeast South Dakota. .DAY ONE...Today and tonight. Two to four inches of snow expected today over Marshall and Day counties. Wind gusts up to 55 miles per hour will also be possible this morning, and a Wind Advisory is in effect until 12 PM CST today. The combination of strong winds and falling snow will cause reductions in visibility this morning, down to half or a quarter of a mile at times. Travel will be difficult, and plan on slippery road conditions for the morning commute! A Winter Weather Advisory is in effect from 6 AM CST through 3 PM CST today. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Local storm report, Feb 18, 3:48 AM CST, 48 minutes before
Preliminary Local Storm Report
National Weather Service Aberdeen SD
348 AM CST Wed Feb 18 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0338 AM Blizzard Selby 45.51N 100.03W
02/18/2026 Walworth SD Law Enforcement
Reported falling snow in gusty winds
creating whiteout conditions over Walworth
County.
&&
NWS ABRLocal storm report, Feb 18, 3:54 AM CST, 42 minutes before
Preliminary Local Storm Report
National Weather Service Aberdeen SD
354 AM CST Wed Feb 18 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0344 AM Non-Tstm Wnd Gst Faulkton 45.03N 99.13W
02/18/2026 E72 MPH Faulk SD Trained Spotter
Trained Spotter called to report a 72 mph
wind gust in Faulkton.
&&
BCThe office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 17, 10:19 PM CST | Winter Weather Advisory | ABR | Brown, Campbell, Clark, Codington, Corson, Day and 10 more | 19 hr |
| Feb 18, 4:03 AM CST | High Wind Warning | ABR | Buffalo, Codington, Deuel, Dewey, Grant, Hamlin and 9 more | 10 hr |
Nearby
Blizzard Warnings in South Dakota, 2026Every blizzard warning in 2026
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.