Alert archive / South Dakota / Wind Advisories in 2020
Wind Advisory 23, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this wind advisory at Dec 21, 2020, 3:16 AM CST for 15 counties in South Dakota; 8 counties in Minnesota; 6 counties in Iowa. It took effect at Dec 21, 2020, 9:00 AM CST. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Dec 21, 2020, 3:16 AM CST (09:16 UTC)
- In effect from
- Dec 21, 2020, 9:00 AM CST
- Expired
- Dec 21, 2020, 4:00 PM CST
- In force
- 7 hr
- Issued by
- NWS Sioux Falls, SD
All 29 counties
Clay County, IA, Dickinson County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Sioux County, IA, Cottonwood County, MN, Jackson County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Aurora County, SD, Beadle County, SD, Brookings County, SD, Davison County, SD, Hanson County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Sanborn County, SD, Turner County, SD
The radar
The Sioux Falls radar (KFSD), 22 km from the middle of the area, began a volume at 09:17 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, 9.3 hours before the alert went out and 185 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
- 1221 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- 360 m²/s²
- 0-3 km storm-relative helicity
- 433 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
937 WWUS73 KFSD 210916 NPWFSD URGENT - WEATHER MESSAGE National Weather Service Sioux Falls SD 316 AM CST Mon Dec 21 2020 IAZ003-014-MNZ071-072-080-081-089-090-211730- /O.NEW.KFSD.WI.Y.0023.201221T1500Z-201221T2200Z/ Dickinson-Clay-Lincoln-Lyon-Murray-Cottonwood-Nobles-Jackson- 316 AM CST Mon Dec 21 2020 ...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 4 PM CST THIS AFTERNOON... * WHAT...Northwest winds 25 to 30 mph with gusts up to 45 mph expected. * WHERE...In Iowa, Dickinson and Clay Counties. In Minnesota, Lincoln, Lyon, Murray, Cottonwood, Nobles and Jackson Counties. * WHEN...From 9 AM this morning to 4 PM CST this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/siouxfalls
2 follow-up statements
282 WWUS73 KFSD 211341 NPWFSD URGENT - WEATHER MESSAGE National Weather Service Sioux Falls SD 741 AM CST Mon Dec 21 2020 IAZ001-002-012-013-MNZ097-098-SDZ038>040-052>056-058>062-066-067- 212145- /O.EXA.KFSD.WI.Y.0023.201221T1500Z-201221T2200Z/ Lyon-Osceola-Sioux-O'Brien-Pipestone-Rock-Beadle-Kingsbury- Brookings-Jerauld-Sanborn-Miner-Lake-Moody-Aurora-Davison-Hanson- McCook-Minnehaha-Turner-Lincoln- 741 AM CST Mon Dec 21 2020 ...WIND ADVISORY IN EFFECT UNTIL 4 PM CST THIS AFTERNOON... * WHAT...Northwest winds 15 to 30 mph with gusts around 45 mph expected. * WHERE...Portions of central, east central, south central and southeast South Dakota, northwest Iowa and southwest Minnesota. * WHEN...Until 4 PM CST this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ IAZ003-014-MNZ071-072-080-081-089-090-212145- /O.CON.KFSD.WI.Y.0023.201221T1500Z-201221T2200Z/ Dickinson-Clay-Lincoln-Lyon-Murray-Cottonwood-Nobles-Jackson- 741 AM CST Mon Dec 21 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM CST THIS AFTERNOON... * WHAT...Northwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...In Iowa, Clay and Dickinson Counties. In Minnesota, Cottonwood, Murray, Lincoln, Lyon, Nobles and Jackson Counties. * WHEN...Until 4 PM CST this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/siouxfalls
559 WWUS73 KFSD 212153 NPWFSD URGENT - WEATHER MESSAGE National Weather Service Sioux Falls SD 353 PM CST Mon Dec 21 2020 IAZ001>003-012>014-MNZ071-072-080-081-089-090-097-098-SDZ038>040- 052>056-058>062-066-067-212300- /O.EXP.KFSD.WI.Y.0023.000000T0000Z-201221T2200Z/ Lyon-Osceola-Dickinson-Sioux-O'Brien-Clay-Lincoln-Murray- Cottonwood-Nobles-Jackson-Pipestone-Rock-Beadle-Kingsbury- Brookings-Jerauld-Sanborn-Miner-Lake-Moody-Aurora-Davison-Hanson- McCook-Minnehaha-Turner- 353 PM CST Mon Dec 21 2020 ...WIND ADVISORY WILL EXPIRE AT 4 PM CST THIS AFTERNOON... Wind gusts will remain elevated for the next hour or two, but will be subsiding as we continue into the early evening hours. $$ For more information from the National Weather Service visit https://weather.gov/siouxfalls
Nearby
Wind Advisories in South Dakota, 2020Wind Advisories in Minnesota, 2020Wind Advisories in Iowa, 2020Every wind advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.