Alert archive / South Dakota / Blizzard Warnings in 2021
Blizzard Warning 1, NWS Aberdeen, SD
NWS Aberdeen, SD issued this blizzard warning at Jan 14, 2021, 2:50 AM CST for 8 counties in South Dakota; Big Stone County, Traverse County, Minnesota. It took effect at Jan 14, 2021, 12:00 PM CST. It was in force for 30 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
- Jan 14, 2021, 2:50 AM CST (08:50 UTC)
- In effect from
- Jan 14, 2021, 12:00 PM CST
- Expired
- Jan 15, 2021, 6:00 PM CST
- In force
- 30 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
The radar
The Aberdeen radar (KABR), 109 km from the middle of the area, began a volume at 08:53 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 |
|---|---|---|---|
| Jan 14, 2:30 PM CST | BLIZZARD | 7 Ne Estelline, SD | WEBCAM VISIBILITY POOR, INTERSTATE 29 CLOSED. |
| Jan 14, 3:30 PM CST | BLIZZARD | Graceville, MN | RWIS STRONG SUSTAINED WINDS/GUSTS, VISIBILITY BELOW A QUARTER OF A MILE. |
| Jan 14, 4:30 PM CST | BLIZZARD | 1 Sw Summit, SD | POOR VISIBILITY ON WEBCAM AND INTERSTATE 29 CLOSED. |
| Jan 14, 4:30 PM CST | BLIZZARD | 5 S Garden City, SD | CLARK RWIS OBSERVATIONS AND WEBCAM INDICATE STRONG WINDS AND POOR VISIBILITY. |
| Jan 14, 4:30 PM CST | BLIZZARD | Lake City, SD | SDDOT REPORTS VISIBILITIES BELOW AN EIGHTH OF A MILE. |
| Jan 14, 5:28 PM CST | BLIZZARD | Webster, SD | NO TRAVEL ADVISED. WEBCAMS INDICATE POOR VISIBILITIES. |
| Jan 14, 6:00 PM CST | BLIZZARD | Sisseton, SD | VISIBILITY LESS THAN A QUARTER MILE. |
| Jan 14, 7:20 PM CST | BLIZZARD | Watertown, SD | STRONG SUSTAINED WIND/GUSTS AND VISIBILITY BELOW A QUARTER OF A MILE. |
| Jan 14, 10:00 PM CST | BLIZZARD | 6 Ne Castlewood, SD | INTERSTATE 29 CLOSED. NO TRAVEL ADVISED. |
| Jan 15, 6:00 AM CST | SNOW 2.6 | Clark, SD | CO-OP OBSERVER STATION CAKS2 CLARK. |
| Jan 15, 7:00 AM CST | SNOW 2 | 10 Ene Sisseton, SD | COCORAHS STATION SD-RB-4 BROWNS VALLEY 6 N. |
| Jan 15, 7:00 AM CST | SNOW 2.2 | 4 W Sisseton, SD | CO-OP OBSERVER STATION SIWS2 SISSETON 3 W. |
| Jan 15, 7:30 AM CST | SNOW 2 | Milbank, SD | CO-OP OBSERVER STATION MLBS2 MILBANK. |
| Jan 15, 8:00 AM CST | SNOW 2.4 | 4 Wnw Lake Cochrane Rec, SD | COCORAHS STATION SD-DL-7 CLEAR LAKE 7 ESE. |
| Jan 15, 8:00 AM CST | SNOW 2.5 | La Bolt, SD | COCORAHS STATION SD-GT-9 LABOLT. |
| Jan 15, 8:00 AM CST | SNOW 2.6 | Castlewood, SD | CO-OP OBSERVER STATION CLWS2 CASTLEWOOD. |
| Jan 15, 9:00 AM CST | SNOW 1.9 | 3 Ese Watertown, SD | CO-OP OBSERVER STATION WRTS2 2.7 E WATERTOWN. |
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, 8.8 hours before the alert went out and 112 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
- 1769 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 142 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
057 WWUS43 KABR 140850 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 250 AM CST Thu Jan 14 2021 MNZ039-046-SDZ007-008-011-019>023-141800- /O.UPG.KABR.WS.A.0001.210114T1800Z-210116T0000Z/ /O.NEW.KABR.BZ.W.0001.210114T1800Z-210116T0000Z/ 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 250 AM CST Thu Jan 14 2021 ...BLIZZARD WARNING IN EFFECT FROM NOON TODAY TO 6 PM CST FRIDAY... * WHAT...Blizzard conditions expected. Total snow accumulations of 2 to 5 inches. Winds gusting as high as 60 mph. * WHERE...Portions of northeast South Dakota and west central Minnesota. * WHEN...From noon today to 6 PM CST Friday. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. 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. && $$ Parkin
5 follow-up statements
947 WWUS43 KABR 141744 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 1144 AM CST Thu Jan 14 2021 MNZ039-046-SDZ007-008-011-019>023-150145- /O.CON.KABR.BZ.W.0001.210114T1800Z-210116T0000Z/ Traverse-Big Stone-Marshall-Roberts-Day-Clark-Codington-Grant- Hamlin-Deuel- Including the cities of Wheaton, Ortonville, Britton, Sisseton, Webster, Clark, Watertown, Milbank, Hayti, and Clear Lake 1144 AM CST Thu Jan 14 2021 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST FRIDAY... * WHAT...Blizzard conditions expected. Total snow accumulations of 2 to 5 inches. Winds gusting as high as 60 mph. * WHERE...Portions of northeast South Dakota and west central Minnesota. * WHEN...From noon today to 6 PM CST Friday. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. In Minnesota, the latest road conditions can be obtained at 511mn.org, or by calling 5 1 1. In South Dakota, the latest road conditions can be obtained by calling 5 1 1. && $$ Mohr
633 WWUS43 KABR 150120 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 720 PM CST Thu Jan 14 2021 MNZ039-046-SDZ007-008-011-019>023-151200- /O.CON.KABR.BZ.W.0001.000000T0000Z-210116T0000Z/ 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 720 PM CST Thu Jan 14 2021 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST FRIDAY... * WHAT...Blizzard conditions. Additional snow accumulations of up to 3 inches. Winds gusting as high as 55 mph. * WHERE...Portions of northeast South Dakota and west central Minnesota. * WHEN...Until 6 PM CST Friday. * 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... 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. && $$ Telken
918 WWUS43 KABR 151117 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 517 AM CST Fri Jan 15 2021 MNZ039-046-SDZ007-008-011-019>023-160000- /O.CON.KABR.BZ.W.0001.000000T0000Z-210116T0000Z/ Traverse-Big Stone-Marshall-Roberts-Day-Clark-Codington-Grant- Hamlin-Deuel- Including the cities of Wheaton, Ortonville, Britton, Sisseton, Webster, Clark, Watertown, Milbank, Hayti, and Clear Lake 517 AM CST Fri Jan 15 2021 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... * WHAT...Blizzard conditions. Additional snow accumulations of up to 2 inches. Winds gusting as high as 60 mph. * WHERE...Portions of northeast South Dakota and west central Minnesota. * WHEN...Until 6 PM CST Friday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. In Minnesota, the latest road conditions can be obtained at 511mn.org, or by calling 5 1 1. In South Dakota, the latest road conditions can be obtained by calling 5 1 1. && $$
774 WWUS43 KABR 151756 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 1156 AM CST Fri Jan 15 2021 MNZ039-046-SDZ007-008-011-019>023-160000- /O.CON.KABR.BZ.W.0001.000000T0000Z-210116T0000Z/ 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 1156 AM CST Fri Jan 15 2021 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... * WHAT...Blizzard conditions. Additional snow accumulations of up to one inch. Patchy freezing drizzle. Winds gusting as high as 50 mph. * WHERE...Portions of northeast South Dakota and west central Minnesota. * WHEN...Until 6 PM CST this evening. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the evening commute. 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. && $$ SD
709 WWUS43 KABR 152358 WSWABR URGENT - WINTER WEATHER MESSAGE National Weather Service Aberdeen SD 558 PM CST Fri Jan 15 2021 MNZ039-046-SDZ007-008-011-019>023-160100- /O.EXP.KABR.BZ.W.0001.000000T0000Z-210116T0000Z/ Traverse-Big Stone-Marshall-Roberts-Day-Clark-Codington-Grant- Hamlin-Deuel- Including the cities of Wheaton, Ortonville, Britton, Sisseton, Webster, Clark, Watertown, Milbank, Hayti, and Clear Lake 558 PM CST Fri Jan 15 2021 ...BLIZZARD WARNING WILL EXPIRE AT 6 PM CST THIS EVENING... Conditions have improved across the region. Therefore, the blizzard warning will be allowed to expire. $$ Mohr
Nearby
Blizzard Warnings in South Dakota, 2021Blizzard Warnings in Minnesota, 2021Every blizzard warning in 2021
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.