Alert archive / Minnesota / Winter Storm Watches in 2021
Winter Storm Watch 2, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this winter storm watch at Feb 27, 2021, 3:52 AM CST for 7 counties in Minnesota; 4 counties in South Dakota; Lyon County, Iowa. It took effect at Feb 27, 2021, 6:00 PM CST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 27, 2021, 3:52 AM CST (09:52 UTC)
- In effect from
- Feb 27, 2021, 6:00 PM CST
- Expired
- Feb 27, 2021, 3:01 PM CST
- In force
- Issued by
- NWS Sioux Falls, SD
Counties Lyon County, IA, Cottonwood County, MN, Jackson County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Lincoln County, SD, Minnehaha County, SD, Moody County, SD, Turner County, SD
The radar
The Sioux Falls radar (KFSD), 51 km from the middle of the area, began a volume at 09:57 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
Aberdeen, SD (KABR), launched 00:00Z, 9.9 hours before the alert went out and 219 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
- 6 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 2776 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
514 WWUS43 KFSD 270952 WSWFSD URGENT - WINTER WEATHER MESSAGE National Weather Service Sioux Falls SD 352 AM CST Sat Feb 27 2021 IAZ002-003-MNZ071-SDZ040-050-054-055-057>061-063>065-068-069- 271800- /O.NEW.KFSD.WW.Y.0009.210228T0000Z-210228T1200Z/ Osceola-Dickinson-Lincoln-Brookings-Gregory-Miner-Lake-Brule- Aurora-Davison-Hanson-McCook-Charles Mix-Douglas-Hutchinson- Bon Homme-Yankton- 352 AM CST Sat Feb 27 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST SUNDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches, with locally higher totals possible. * WHERE...Portions of east central, south central and southeast South Dakota, northwest Iowa and southwest Minnesota. This includes the tribal lands of the Yankton Sioux Tribal Nation. * WHEN...From 6 PM this evening to 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...A narrow band of heavier snow is expected with this system, however the exact location of the heavier band is still uncertain. As a result, snowfall accumulations may be locally higher. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ001-MNZ072-080-081-089-090-097-098-SDZ056-062-066-067-271800- /O.NEW.KFSD.WS.A.0002.210228T0000Z-210228T1200Z/ Lyon-Murray-Cottonwood-Nobles-Jackson-Pipestone-Rock-Moody- Minnehaha-Turner-Lincoln- 352 AM CST Sat Feb 27 2021 ...WINTER STORM WATCH IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... * WHAT...Heavy snow possible. Total snow accumulations of 4 to 7 inches possible, with locally higher totals possible. * WHERE...Portions of east central and southeast South Dakota, northwest Iowa and southwest Minnesota. This includes the tribal lands of the Flandreau Santee Sioux Tribal Nation. * WHEN...From this evening through late tonight. * IMPACTS...Travel could be very difficult. * ADDITIONAL DETAILS...A narrow band of heavier snow is expected with this system, however the exact location of the heavier band is still uncertain. Snowfall rates in excess of one inch per hour will be possible within this band, and as a result, snowfall accumulations may be locally higher. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ For more information from the National Weather Service visit https://weather.gov/siouxfalls
2 follow-up statements
431 WWUS43 KFSD 271651 WSWFSD URGENT - WINTER WEATHER MESSAGE National Weather Service Sioux Falls SD 1051 AM CST Sat Feb 27 2021 IAZ002-003-MNZ071-SDZ040-050-054-055-057>061-063>065-068-069- 280100- /O.CON.KFSD.WW.Y.0009.210228T0000Z-210228T1200Z/ Osceola-Dickinson-Lincoln-Brookings-Gregory-Miner-Lake-Brule- Aurora-Davison-Hanson-McCook-Charles Mix-Douglas-Hutchinson- Bon Homme-Yankton- 1051 AM CST Sat Feb 27 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST SUNDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 5 inches, with locally higher totals possible. * WHERE...Portions of east central, south central and southeast South Dakota, northwest Iowa and southwest Minnesota. This includes the tribal lands of the Yankton Sioux Tribal Nation. * WHEN...From 6 PM this evening to 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ001-MNZ072-080-081-089-090-097-098-SDZ056-062-066-067-280100- /O.CON.KFSD.WS.A.0002.210228T0000Z-210228T1200Z/ Lyon-Murray-Cottonwood-Nobles-Jackson-Pipestone-Rock-Moody- Minnehaha-Turner-Lincoln- 1051 AM CST Sat Feb 27 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM 6 PM CST THIS EVENING THROUGH LATE TONIGHT... * WHAT...Heavy snow possible. Total snow accumulations of 4 to 7 inches possible, with locally higher totals possible. * WHERE...Portions of east central and southeast South Dakota, northwest Iowa and southwest Minnesota. This includes the tribal lands of the Flandreau Santee Sioux Tribal Nation. * WHEN...From this evening through late tonight. * IMPACTS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ For more information from the National Weather Service visit https://weather.gov/siouxfalls
216 WWUS43 KFSD 272101 WSWFSD URGENT - WINTER WEATHER MESSAGE National Weather Service Sioux Falls SD 301 PM CST Sat Feb 27 2021 IAZ001-MNZ072-080-081-089-090-097-098-SDZ056-062-066-067-280515- /O.UPG.KFSD.WS.A.0002.210228T0000Z-210228T1200Z/ /O.EXA.KFSD.WW.Y.0009.210228T0000Z-210228T1200Z/ Lyon-Murray-Cottonwood-Nobles-Jackson-Pipestone-Rock-Moody- Minnehaha-Turner-Lincoln- 301 PM CST Sat Feb 27 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST SUNDAY... * WHAT...Snow expected. Total snow accumulations of 4 to 7 inches. * WHERE...Portions of east central and southeast South Dakota, northwest Iowa and southwest Minnesota. This includes the tribal lands of the Flandreau Santee Sioux Tribal Nation. * WHEN...From 6 PM this evening to 6 AM CST Sunday. * IMPACTS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ SDZ070-280515- /O.EXA.KFSD.WW.Y.0009.210228T0000Z-210228T1200Z/ Clay- 301 PM CST Sat Feb 27 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST SUNDAY... * WHAT...Snow expected. Total snow accumulations of 1 to 4 inches. * WHERE...Clay County. * WHEN...From 6 PM this evening to 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ002-003-MNZ071-SDZ040-050-054-055-057>061-063>065-068-069- 280515- /O.CON.KFSD.WW.Y.0009.210228T0000Z-210228T1200Z/ Osceola-Dickinson-Lincoln-Brookings-Gregory-Miner-Lake-Brule- Aurora-Davison-Hanson-McCook-Charles Mix-Douglas-Hutchinson- Bon Homme-Yankton- 301 PM CST Sat Feb 27 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST SUNDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 5 inches. * WHERE...Portions of east central, south central and southeast South Dakota, northwest Iowa and southwest Minnesota. This includes the tribal lands of the Yankton Sioux Tribal Nation. * WHEN...From 6 PM this evening to 6 AM CST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/siouxfalls
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 27, 3:52 AM CST | Winter Weather Advisory | FSD | Cottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more | 29 hr |
Nearby
Winter Storm Watches in Minnesota, 2021Winter Storm Watches in South Dakota, 2021Winter Storm Watches in Iowa, 2021Every winter storm watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.