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Wind Chill Advisory 8, NWS Sioux Falls, SD

February 1, 20226 counties in South Dakota; 5 counties in Iowa; 8 counties in Minnesota

NWS Sioux Falls, SD issued this wind chill advisory at Feb 1, 2022, 2:11 PM CST for 6 counties in South Dakota; 5 counties in Iowa; 8 counties in Minnesota. It took effect at Feb 2, 2022, 12:00 AM CST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: Feb 1, 2022, 2:11 PM CST (20:11 UTC)
In effect from: Feb 2, 2022, 12:00 AM CST
Expired: Feb 2, 2022, 12:00 PM CST
In force: 12 hr
Issued by: NWS Sioux Falls, SD

Counties Buena Vista County, IA, Clay County, IA, Dickinson County, IA, O'Brien County, IA, Osceola 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, Beadle County, SD, Brookings County, SD, Kingsbury County, SD, Lake County, SD, Miner County, SD, Moody County, SD

The radar

The Sioux Falls radar (KFSD), 53 km from the middle of the area, began a volume at 20:13 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

Minneapolis, MN (KMPX), launched 12:00Z, 8.2 hours before the alert went out and 233 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 616 m above ground
0-6 km bulk shear: 92 kt
0-1 km storm-relative helicity: -59 m²/s²
0-3 km storm-relative helicity: 64 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Sioux Falls, SD wrote its last area forecast discussion before this wind chill advisory went out at Feb 1, 11:36 AM CST, 2 hours 35 minutes earlier.

Area forecast discussion, Feb 1, 11:36 AM CST, 2 hours 35 minutes before

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Hazardous weather outlook, Feb 1, 6:07 AM CST, 8 hours 4 minutes before

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In the hours before

Local storm report, Feb 1, 10:10 AM CST, 4 hours 1 minute before

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Nearby

Wind Chill Advisories in Minnesota, 2022 Wind Chill Advisories in South Dakota, 2022 Wind Chill Advisories in Iowa, 2022 Every wind chill advisory in 2022

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.