Alert archive / South Dakota / Blizzard Warnings in 2020
Blizzard Warning 3, NWS Aberdeen, SD
NWS Aberdeen, SD issued this blizzard warning at Dec 22, 2020, 2:23 PM CST for 9 counties in South Dakota; Big Stone County, Traverse County, Minnesota. It took effect at Dec 23, 2020, 3:00 AM CST. It was in force for 18 hr. 16 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
- Dec 22, 2020, 2:23 PM CST (20:23 UTC)
- In effect from
- Dec 23, 2020, 3:00 AM CST
- Expired
- Dec 23, 2020, 9:00 PM CST
- In force
- 18 hr
- Issued by
- NWS Aberdeen, SD
Counties Big Stone County, MN, Traverse County, MN, Clark County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Marshall County, SD, Roberts County, SD, Spink County, SD
The radar
The Aberdeen radar (KABR), 101 km from the middle of the area, began a volume at 20:24 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 23, 7:00 AM CST | SNOW 3 | Britton, SD | CO-OP OBSERVER STATION BRIS2 BRITTON. |
| Dec 23, 7:20 AM CST | BLIZZARD | Florence, SD | VISIBILITY DOWN TO AN EIGHTH OF A MILE. SIMILAR CONDITIONS ACROSS OTHER PARTS OF WESTERN CODINGTON COUNTY AS WELL AT THIS TIME. |
| Dec 23, 8:00 AM CST | BLIZZARD | Sisseton, SD | NEAR ZERO VISIBILITY AT TIMES ACROSS THE COUNTY. |
| Dec 23, 10:40 AM CST | BLIZZARD | Mansfield, SD | BLIZZARD CONDITIONS ONGOING WITH SIGNIFICANTLY REDUCED VISIBILITY. |
| Dec 23, 10:57 AM CST | BLIZZARD | Mellette, SD | NEAR ZERO VISIBILITY, VEHICLES IN THE DITCH. VISIBILITY BECAME INCREASINGLY WORSE DRIVING SOUTH FROM THE BROWN, SPINK COUNTY LINE. |
| Dec 23, 11:00 AM CST | BLIZZARD | 6 W Henry, SD | 3 PLUS CONSECUTIVE HOURS OF QUARTER MILE OR LESS VISIBILITY VIA SDDOT WEBCAM. |
| Dec 23, 11:00 AM CST | BLIZZARD | Lake City, SD | 3 PLUS CONSECUTIVE HOURS OF QUARTER MILE OR LESS VISIBILITY VIA SDDOT WEBCAM. |
| Dec 23, 11:15 AM CST | BLIZZARD | Webster, SD | NEAR ZERO VISIBILITY ACROSS THE COUNTY WITH NUMEROUS VEHICLES IN DITCHES. |
| Dec 23, 12:00 PM CST | SNOW 4.5 | Andover, SD | BLIZZARD CONDITIONS ALSO REPORTED. CO-OP OBSERVER STATION ANVS2 ANDOVER. |
| Dec 23, 12:00 PM CST | BLIZZARD | Wheaton, MN | 3 PLUS CONSECUTIVE HOURS OF A QUARTER MILE OR LESS VISIBILITY VIA THE AWOS. |
| Dec 23, 12:30 PM CST | BLIZZARD | 1 E Ortonville, MN | 3 PLUS CONSECUTIVE HOURS OF QUARTER MILE VISIBILITY OR LESS. |
| Dec 23, 1:00 PM CST | BLIZZARD | 4 W Milbank, SD | BLIZZARD CONDITIONS REPORTED ACROSS THE COUNTY. |
| Dec 23, 1:00 PM CST | BLIZZARD | 4 W Stone Bridge, SD | BLIZZARD CONDITIONS REPORTED ACROSS THE COUNTY. |
| Dec 23, 1:00 PM CST | BLIZZARD | 7 Ne Estelline, SD | 3 PLUS CONSECUTIVE HOURS OF QUARTER MILE OR LESS VISIBILITY VIA SDDOT WEBCAM. |
| Dec 23, 2:30 PM CST | SNOW 2 | Ashton, SD | RELAYED VIA SOCIAL MEDIA. |
| Dec 23, 6:00 PM CST | SNOW 2.7 | 2 Ese Artichoke, MN | STORM TOTAL. |
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 12:00Z, 8.4 hours before the alert went out and 102 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
- 2127 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 457 m²/s²
- 0-3 km storm-relative helicity
- 325 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
350 WWUS43 KABR 222023 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 223 PM CST Tue Dec 22 2020 MNZ039-046-SDZ008-020>023-230430- /O.UPG.KABR.WS.A.0006.201223T1100Z-201224T0000Z/ /O.NEW.KABR.BZ.W.0003.201223T0900Z-201224T0200Z/ Traverse-Big Stone-Roberts-Codington-Grant-Hamlin-Deuel- Including the cities of Wheaton, Ortonville, Sisseton, Watertown, Milbank, Hayti, and Clear Lake 223 PM CST Tue Dec 22 2020 ...BLIZZARD WARNING IN EFFECT FROM 3 AM TO 8 PM CST WEDNESDAY... * WHAT...Blizzard conditions expected. Total snow accumulations of 2 to 4 inches. Winds gusting as high as 55 mph. * WHERE...Portions of northeast South Dakota and west central Minnesota. * WHEN...From 3 AM to 8 PM CST Wednesday. * IMPACTS...Plan on slippery road conditions. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. 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. 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. && $$ SDZ007-011-019-230430- /O.NEW.KABR.BZ.W.0003.201223T0900Z-201224T0200Z/ Marshall-Day-Clark- Including the cities of Britton, Webster, and Clark 223 PM CST Tue Dec 22 2020 ...BLIZZARD WARNING IN EFFECT FROM 3 AM TO 8 PM CST WEDNESDAY... * WHAT...Blizzard conditions expected. Total snow accumulations of 2 to 4 inches. Winds gusting as high as 55 mph. * WHERE...Marshall, Day and Clark Counties. * WHEN...From 3 AM to 8 PM CST Wednesday. * IMPACTS...Plan on slippery road conditions. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions can be obtained by calling 5 1 1. && $$ SDZ003>006-009-010-015>018-033>037-045-048-051-230430- /O.NEW.KABR.WW.Y.0020.201223T0600Z-201224T0000Z/ Corson-Campbell-McPherson-Brown-Walworth-Edmunds-Dewey-Potter- Faulk-Spink-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo- Including the cities of McIntosh, Herreid, Eureka, Aberdeen, Mobridge, Ipswich, Isabel, Gettysburg, Faulkton, Redfield, Fort Pierre, Onida, Pierre, Highmore, Miller, Murdo, Kennebec, and Fort Thompson 223 PM CST Tue Dec 22 2020 /123 PM MST Tue Dec 22 2020/ ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT CST /11 PM MST/ TONIGHT TO 6 PM CST /5 PM MST/ WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 1 to 3 inches. Winds gusting as high as 60 mph causing some blowing snow. * WHERE...Portions of central, north central and northeast South Dakota. * WHEN...From midnight CST /11 PM MST/ tonight to 6 PM CST /5 PM MST/ Wednesday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening 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. && $$ Mohr
7 follow-up statements
447 WWUS43 KABR 230410 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 1010 PM CST Tue Dec 22 2020 MNZ039-046-SDZ007-008-011-019>023-231215- /O.CON.KABR.BZ.W.0003.201223T0900Z-201224T0200Z/ Traverse-Big Stone-Marshall-Roberts-Day-Clark-Codington-Grant- Hamlin-Deuel- Including the cities of Wheaton, Ortonville, Britton, Sisseton, Webster, Clark, Watertown, Milbank, Hayti, and Clear Lake 1010 PM CST Tue Dec 22 2020 ...BLIZZARD WARNING REMAINS IN EFFECT FROM 3 AM TO 8 PM CST WEDNESDAY... * WHAT...Blizzard conditions expected. Total snow accumulations of 2 to 4 inches. Winds gusting as high as 55 mph. * WHERE...Portions of northeast South Dakota and west central Minnesota. * WHEN...From 3 AM to 8 PM CST Wednesday. * IMPACTS...Plan on slippery road conditions. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. In Minnesota, the latest road conditions can be obtained at 511mn.org, or by calling 5 1 1. In South Dakota, the latest road conditions can be obtained by calling 5 1 1. && $$ SDZ003>006-009-010-015>018-033>037-045-048-051-231215- /O.CON.KABR.WW.Y.0020.201223T0600Z-201224T0000Z/ Corson-Campbell-McPherson-Brown-Walworth-Edmunds-Dewey-Potter- Faulk-Spink-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo- Including the cities of McIntosh, Herreid, Eureka, Aberdeen, Mobridge, Ipswich, Isabel, Gettysburg, Faulkton, Redfield, Fort Pierre, Onida, Pierre, Highmore, Miller, Murdo, Kennebec, and Fort Thompson 1010 PM CST Tue Dec 22 2020 /910 PM MST Tue Dec 22 2020/ ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST /5 PM MST/ WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 1 to 3 inches. Winds gusting as high as 60 mph causing some blowing snow. * WHERE...Portions of central, north central and northeast South Dakota. * WHEN...From midnight CST /11 PM MST/ tonight to 6 PM CST /5 PM MST/ Wednesday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening 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. && $$
715 WWUS43 KABR 230931 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 331 AM CST Wed Dec 23 2020 MNZ039-046-SDZ007-008-011-019>023-231745- /O.CON.KABR.BZ.W.0003.000000T0000Z-201224T0200Z/ Traverse-Big Stone-Marshall-Roberts-Day-Clark-Codington-Grant- Hamlin-Deuel- Including the cities of Wheaton, Ortonville, Britton, Sisseton, Webster, Clark, Watertown, Milbank, Hayti, and Clear Lake 331 AM CST Wed Dec 23 2020 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 8 PM CST THIS EVENING... * WHAT...Blizzard conditions. Additional snow accumulations of 3 to 5 inches. Winds gusting as high as 60 mph. * WHERE...Portions of northeast South Dakota and west central Minnesota. * WHEN...Until 8 PM CST this evening. * IMPACTS...Plan on slippery road conditions. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. In Minnesota, the latest road conditions can be obtained at 511mn.org, or by calling 5 1 1. In South Dakota, the latest road conditions can be obtained by calling 5 1 1. && $$ SDZ003>006-009-010-015>018-033>037-045-048-051-231745- /O.CON.KABR.WW.Y.0020.000000T0000Z-201224T0000Z/ Corson-Campbell-McPherson-Brown-Walworth-Edmunds-Dewey-Potter- Faulk-Spink-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo- Including the cities of McIntosh, Herreid, Eureka, Aberdeen, Mobridge, Ipswich, Isabel, Gettysburg, Faulkton, Redfield, Fort Pierre, Onida, Pierre, Highmore, Miller, Murdo, Kennebec, and Fort Thompson 331 AM CST Wed Dec 23 2020 /231 AM MST Wed Dec 23 2020/ ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST /5 PM MST/ THIS EVENING... * WHAT...Snow. Additional snow accumulations of 1 to 3 inches. Winds gusting as high as 60 mph. * WHERE...Portions of central, north central and northeast South Dakota. * WHEN...Until 6 PM CST /5 PM MST/ this evening. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening 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. && $$
906 WWUS43 KABR 231429 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 829 AM CST Wed Dec 23 2020 SDZ018-232230- /O.UPG.KABR.WW.Y.0020.000000T0000Z-201224T0000Z/ /O.EXA.KABR.BZ.W.0003.000000T0000Z-201224T0200Z/ Spink- Including the city of Redfield 829 AM CST Wed Dec 23 2020 ...BLIZZARD WARNING IN EFFECT UNTIL 8 PM CST THIS EVENING... * WHAT...Blizzard conditions. Additional snow accumulations of 1 to 3 inches. Winds gusting as high as 60 mph. * WHERE...Spink County. * WHEN...Until 8 PM CST this evening. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Visibility will be near zero at times this morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions can be obtained by calling 5 1 1. && $$ MNZ039-046-SDZ007-008-011-019>023-232230- /O.CON.KABR.BZ.W.0003.000000T0000Z-201224T0200Z/ Traverse-Big Stone-Marshall-Roberts-Day-Clark-Codington-Grant- Hamlin-Deuel- Including the cities of Wheaton, Ortonville, Britton, Sisseton, Webster, Clark, Watertown, Milbank, Hayti, and Clear Lake 829 AM CST Wed Dec 23 2020 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 8 PM CST THIS EVENING... * WHAT...Blizzard conditions. Additional snow accumulations of 2 to 4 inches. Winds gusting as high as 60 mph. * WHERE...Portions of northeast South Dakota and west central Minnesota. * WHEN...Until 8 PM CST this evening. * IMPACTS...Plan on slippery road conditions. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. 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. 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. && $$ SDZ003>006-009-010-015>017-033>037-045-048-051-232230- /O.CON.KABR.WW.Y.0020.000000T0000Z-201224T0000Z/ Corson-Campbell-McPherson-Brown-Walworth-Edmunds-Dewey-Potter- Faulk-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo- Including the cities of McIntosh, Herreid, Eureka, Aberdeen, Mobridge, Ipswich, Isabel, Gettysburg, Faulkton, Fort Pierre, Onida, Pierre, Highmore, Miller, Murdo, Kennebec, and Fort Thompson 829 AM CST Wed Dec 23 2020 /729 AM MST Wed Dec 23 2020/ ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST /5 PM MST/ THIS EVENING... * WHAT...Snow. Additional snow accumulations of up to one inch. Winds gusting as high as 60 mph. * WHERE...Portions of central, north central and northeast South Dakota. * WHEN...Until 6 PM CST /5 PM MST/ this evening. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$
582 WWUS43 KABR 231449 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 849 AM CST Wed Dec 23 2020 SDZ003-004-009-015-016-231600- /O.CAN.KABR.WW.Y.0020.000000T0000Z-201224T0000Z/ Corson-Campbell-Walworth-Dewey-Potter- Including the cities of McIntosh, Herreid, Mobridge, Isabel, and Gettysburg 849 AM CST Wed Dec 23 2020 /749 AM MST Wed Dec 23 2020/ ...WINTER WEATHER ADVISORY IS CANCELLED... Snow is ending over the region so the winter weather advisory is being cancelled. $$ MNZ039-046-SDZ007-008-011-018>023-232300- /O.CON.KABR.BZ.W.0003.000000T0000Z-201224T0200Z/ Traverse-Big Stone-Marshall-Roberts-Day-Spink-Clark-Codington- Grant-Hamlin-Deuel- Including the cities of Wheaton, Ortonville, Britton, Sisseton, Webster, Redfield, Clark, Watertown, Milbank, Hayti, and Clear Lake 849 AM CST Wed Dec 23 2020 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 8 PM CST THIS EVENING... * WHAT...Blizzard conditions. Additional snow accumulations of 1 to 3 inches. Winds gusting as high as 60 mph. * WHERE...Portions of northeast South Dakota and west central Minnesota. * WHEN...Until 8 PM CST this evening. * IMPACTS...Plan on slippery road conditions. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the evening commute. Strong winds could cause tree damage. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. In Minnesota, the latest road conditions can be obtained at 511mn.org, or by calling 5 1 1. In South Dakota, the latest road conditions can be obtained by calling 5 1 1. && $$ SDZ005-006-010-017-033>037-045-048-051-232300- /O.CON.KABR.WW.Y.0020.000000T0000Z-201224T0000Z/ McPherson-Brown-Edmunds-Faulk-Stanley-Sully-Hughes-Hyde-Hand- Jones-Lyman-Buffalo- Including the cities of Eureka, Aberdeen, Ipswich, Faulkton, Fort Pierre, Onida, Pierre, Highmore, Miller, Murdo, Kennebec, and Fort Thompson 849 AM CST Wed Dec 23 2020 /749 AM MST Wed Dec 23 2020/ ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST /5 PM MST/ THIS EVENING... * WHAT...Snow. Additional snow accumulations of up to one inch. Winds gusting as high as 60 mph. * WHERE...Portions of central, north central and northeast South Dakota. * WHEN...Until 6 PM CST /5 PM MST/ this evening. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the evening 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. && $$
982 WWUS43 KABR 231812 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 1212 PM CST Wed Dec 23 2020 SDZ005-006-010-017-033>036-231915- /O.CAN.KABR.WW.Y.0020.000000T0000Z-201224T0000Z/ McPherson-Brown-Edmunds-Faulk-Stanley-Sully-Hughes-Hyde- Including the cities of Eureka, Aberdeen, Ipswich, Faulkton, Fort Pierre, Onida, Pierre, and Highmore 1212 PM CST Wed Dec 23 2020 /1112 AM MST Wed Dec 23 2020/ ...WINTER WEATHER ADVISORY IS CANCELLED... Snow and blowing snow are gradually coming to an end over the region, therefore the winter weather advisory has been cancelled. $$ MNZ039-046-SDZ007-008-011-018>023-240200- /O.CON.KABR.BZ.W.0003.000000T0000Z-201224T0200Z/ Traverse-Big Stone-Marshall-Roberts-Day-Spink-Clark-Codington- Grant-Hamlin-Deuel- Including the cities of Wheaton, Ortonville, Britton, Sisseton, Webster, Redfield, Clark, Watertown, Milbank, Hayti, and Clear Lake 1212 PM CST Wed Dec 23 2020 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 8 PM CST THIS EVENING... * WHAT...Blizzard conditions. Additional snow accumulations of up to one inch. Winds gusting as high as 60 mph. * WHERE...Portions of northeast South Dakota and west central Minnesota. * WHEN...Until 8 PM CST this evening. * IMPACTS...Plan on slippery road conditions. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the evening commute. Strong winds could cause tree damage. The cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 30 minutes. 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. 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. && $$ SDZ037-045-048-051-240000- /O.CON.KABR.WW.Y.0020.000000T0000Z-201224T0000Z/ Hand-Jones-Lyman-Buffalo- Including the cities of Miller, Murdo, Kennebec, and Fort Thompson 1212 PM CST Wed Dec 23 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... * WHAT...Blowing snow. Winds gusting as high as 60 mph. * WHERE...Jones, Lyman, Hand and Buffalo Counties. * WHEN...Until 6 PM CST this evening. * IMPACTS...Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the evening commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling, especially in open areas. The latest road conditions can be obtained by calling 5 1 1. && $$
565 WWUS43 KABR 232038 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 238 PM CST Wed Dec 23 2020 SDZ018-232145- /O.CAN.KABR.BZ.W.0003.000000T0000Z-201224T0200Z/ Spink- Including the city of Redfield 238 PM CST Wed Dec 23 2020 ...BLIZZARD WARNING IS CANCELLED... The snow has ended, and the wind will gradually decrease late this afternoon and evening. Thus, blowing snow will also decrease as we head toward evening. $$ SDZ037-045-048-051-232145- /O.CAN.KABR.WW.Y.0020.000000T0000Z-201224T0000Z/ Hand-Jones-Lyman-Buffalo- Including the cities of Miller, Murdo, Kennebec, and Fort Thompson 238 PM CST Wed Dec 23 2020 ...WINTER WEATHER ADVISORY IS CANCELLED... The threat of widespread blowing snow and very low visibility has mostly ended, therefore the advisory is cancelled. $$ MNZ039-046-SDZ007-008-011-019>023-240600- /O.NEW.KABR.WC.Y.0009.201224T0000Z-201224T1800Z/ /O.EXT.KABR.BZ.W.0003.000000T0000Z-201224T0300Z/ Traverse-Big Stone-Marshall-Roberts-Day-Clark-Codington-Grant- Hamlin-Deuel- Including the cities of Wheaton, Ortonville, Britton, Sisseton, Webster, Clark, Watertown, Milbank, Hayti, and Clear Lake 238 PM CST Wed Dec 23 2020 ...BLIZZARD WARNING NOW IN EFFECT UNTIL 9 PM CST THIS EVENING... ...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON CST THURSDAY... * WHAT...For the Blizzard Warning, blizzard conditions. Additional snow accumulations of up to one inch. Winds gusting as high as 60 mph. For the Wind Chill Advisory, very cold wind chills expected. Wind chills as low as 30 below zero. * WHERE...Portions of northeast South Dakota and west central Minnesota. * WHEN...For the Blizzard Warning, until 9 PM CST this evening. For the Wind Chill Advisory, from 6 PM this evening to noon CST Thursday. * IMPACTS...Plan on slippery road conditions. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. 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. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. 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. && $$ SDZ006-240600- /O.NEW.KABR.WC.Y.0009.201224T0000Z-201224T1800Z/ Brown- Including the city of Aberdeen 238 PM CST Wed Dec 23 2020 ...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON CST THURSDAY... * WHAT...Very cold wind chills expected. Wind chills as low as 25 below zero. * WHERE...Brown County. * WHEN...From 6 PM this evening to noon CST Thursday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$
916 WWUS43 KABR 240301 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 901 PM CST Wed Dec 23 2020 MNZ039-046-SDZ007-008-011-019>023-241115- /O.EXP.KABR.BZ.W.0003.000000T0000Z-201224T0300Z/ /O.CON.KABR.WC.Y.0009.000000T0000Z-201224T1800Z/ Traverse-Big Stone-Marshall-Roberts-Day-Clark-Codington-Grant- Hamlin-Deuel- Including the cities of Wheaton, Ortonville, Britton, Sisseton, Webster, Clark, Watertown, Milbank, Hayti, and Clear Lake 901 PM CST Wed Dec 23 2020 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST THURSDAY... ...BLIZZARD WARNING HAS EXPIRED... * WHAT...Very cold wind chills. Wind chills as low as 30 below zero. * WHERE...Portions of northeast South Dakota and west central Minnesota. * WHEN...Until noon CST Thursday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ SDZ006-241115- /O.CON.KABR.WC.Y.0009.000000T0000Z-201224T1800Z/ Brown- Including the city of Aberdeen 901 PM CST Wed Dec 23 2020 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST THURSDAY... * WHAT...Very cold wind chills. Wind chills as low as 25 below zero. * WHERE...Brown County. * WHEN...Until noon CST Thursday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ Parkin
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 Dec 22, 11:54 AM CST, 2 hours 29 minutes earlier.
Area forecast discussion, Dec 22, 11:54 AM CST, 2 hours 29 minutes before
Area Forecast Discussion
National Weather Service Aberdeen SD
1154 AM CST Tue Dec 22 2020
.UPDATE...
Issued at 1121 AM CST Tue Dec 22 2020
Cirrus over the cwa will continue lifting northeast through the
day bringing mostly sunny skies. Highs in the mid 40s to the lower
60s look good. Otherwise, with an intensifying surface low
pressure system moving in from the west today and tonight and with
the latest model runs showing snowfall and high winds, may
upgrade the watches in the early afternoon.
&&
.SHORT TERM...(Today through Wednesday Afternoon)
Issued at 521 AM CST Tue Dec 22 2020
Low pressure will move through the Dakotas today. Southerly winds
with gusts to 30 mph ahead of the low will help draw up record to
near record warm air, especially across central SD under ridging
aloft. 50th percentile temps for Pierre today range toward 65
degrees with 75th to 90th percentiles nudging into the 70s. These
temps will be the warmest we see for a long while as significantly
colder air rushes in behind the low.
A deep upper trough digs into the Plains tonight. Northwest winds
will increase behind the low tonight supported by a 26 mb pressure
gradient across the state and a solidly packed thermal gradient, as
well. Gusts to 60 mph are probable across central SD and the
Sisseton Hills with a little more uncertainty in the valleys. Less
confidence exists regarding snow amounts. This system is relatively
moisture starved. However, QPF has been trending up over the last
couple of days, especially across the east, due to small shifts in
the track of the low. The strong caa will help squeeze out whatever
moisture is available. Current 50th percentile guidance suggests an
inch to an inch and a half of snow along and east of the James
Valley. WPC went between the 50th and the 75th, the latter of which
has around 2.5 inches in the east. However, believe the SLR is being
overdone due to the caa. Given the strength of the winds, dropped
SLR below NBM and well below WPC guidance.
Less than 2 inches of snow over a 12 hour period should keep the
threat of a blizzard down. However, issued a watch over the Coteau
and east to collaborate with neighbors. More likely, a winter wx
advisory and possibly a High Wind Warning will be necessary to cover
the periods of blowing snow that are expected during any falling
snow. Due to the uncertainty in snow amounts, will keep watches only
and no advisories or warnings.
.LONG TERM...(Wednesday Evening through Monday)
Issued at 521 AM CST Tue Dec 22 2020
The most active portion of this forecast period will be at its very
beginning. Relatively quiet conditions look to ensue after that
which will takes us through the Christmas holiday, the upcoming
weekend into early next week.
As we start off Wednesday evening, the storm system that just moved
through the area will be pulling east and away from the region. A
tight gradient will continue to hang on in our eastern zones to
warrant holding onto breezy to windy conditions and patchy blowing
snow for locales from the James valley and points east Wednesday
night into early Thursday morning. By daybreak Thursday, the
gradient will have relaxed as high pressure quickly builds into the
area. At that point, the story becomes the arctic chill that is
progged to keep a grip, albeit a brief one, on the forecast area.
Subzero temperatures(eastern fcst zones) early Thursday morning
combined with the breezy conditions will produce wind chill values
between 15 and 25 below zero through mid to late morning on
Thursday. Things improve toward afternoon but temperatures will
remain cold with single digits to around 10 above in the east to
upper teens to mid 20s west across the Missouri valley.
We begin to rebound nicely and pretty quickly on Christmas Day as
sfc high pressure slides south and east and a warm front pushes into
the western Dakotas. The warm air advection pattern that sets up by
Friday afternoon looks to aid in returning daytime readings back
into the 30s and 40s. We look to hang onto this modifying temp trend
into the start of the weekend with similar readings expected on
Saturday. However, another disturbance with some associated upper
level energy will work into the region the latter half of the
weekend and help to drag a cold front back through the area with
cooler temperatures once again sliding back in toward early next
week.
&&
.AVIATION...(For the 18Z TAFS through 18Z Wednesday Afternoon)
Issued at 1136 AM CST Tue Dec 22 2020
Terminals KABR,KATY,KPIR,KMBG
VFR ceilings and vis will continue until around 06Z tonight. We
still have winds gusting at most locations 15-30kts, strongest
over ABR and ATY. While the lighter winds are over central SD this
afternoon, there is stronger winds just above the surface. Did
include LLWS to 30kts at PIR until 22Z this afternoon. Otherwise
strong winds will couple with falling snow to produce visibilities
down to around 2 miles at times shortly after daybreak Wednesday.
Expect slowly improving conditions due to exiting moisture prior
to 18Z at most locations.
&&
.ABR WATCHES/WARNINGS/ADVISORIES...
SD...High Wind Watch from late tonight through Wednesday afternoon
for SDZ003>005-009-010-015-016-033>035-045-048.
Winter Storm Watch from late tonight through Wednesday afternoon
for SDZ008-020>023.
High Wind Watch from late tonight through Wednesday afternoon
for SDZ006-007-011-017>019-036-037-051.
MN...Winter Storm Watch from late tonight through Wednesday afternoon
for MNZ039-046.
&&
UPDATE...Mohr
SHORT TERM...Wise
LONG TERM...Vipond
AVIATION...KFHazardous weather outlook, Dec 22, 4:11 AM CST, 10 hours 12 minutes before
Hazardous Weather Outlook National Weather Service Aberdeen SD 411 AM CST Tue Dec 22 2020 MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-231015- Traverse-Big Stone-Corson-Campbell-McPherson-Brown-Marshall-Roberts- Walworth-Edmunds-Day-Dewey-Potter-Faulk-Spink-Clark-Codington-Grant- Hamlin-Deuel-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo- 411 AM CST Tue Dec 22 2020 /311 AM MST Tue Dec 22 2020/ This Hazardous Weather Outlook is for west central Minnesota, central South Dakota, north central South Dakota and northeast South Dakota. .DAY ONE...Today and tonight. Very strong northwest winds will develop tonight after midnight. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. For Wednesday, very strong northwest winds are expected along with light snow, falling temperatures and wind chills. 2 inches or less of snow is expected with highest amounts east of the James Valley. The strong winds combined with the falling snow may cause periods of blowing snow and reduced visibilities especially along the I-29 corridor. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 22, 3:58 AM CST | Winter Storm Watch | ABR | Codington, Deuel, Grant, Hamlin, Roberts | 10 hr |
| Dec 22, 2:23 PM CST | Winter Weather Advisory | ABR | Brown, Buffalo, Campbell, Corson, Dewey, Edmunds and 12 more | 24 hr |
| Dec 22, 2:31 PM CST | High Wind Warning | ABR | Brown, Buffalo, Campbell, Corson, Dewey, Edmunds and 12 more | 24 hr |
Nearby
Blizzard Warnings in South Dakota, 2020Blizzard Warnings in Minnesota, 2020Every blizzard warning in 2020
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.