Alert archive / Iowa / Wind Chill Advisories in 2022

Wind Chill Advisory 5, NWS Sioux Falls, SD

January 19, 20225 counties in South Dakota; 9 counties in Iowa; 8 counties in Minnesota

NWS Sioux Falls, SD issued this wind chill advisory at Jan 19, 2022, 3:05 AM CST for 5 counties in South Dakota; 9 counties in Iowa; 8 counties in Minnesota. It took effect at Jan 19, 2022, 6:00 PM CST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: Jan 19, 2022, 3:05 AM CST (09:05 UTC)
In effect from: Jan 19, 2022, 6:00 PM CST
Expired: Jan 20, 2022, 12:00 PM CST
In force: 18 hr
Issued by: NWS Sioux Falls, SD

All 22 counties

Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Ida 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, Brookings County, SD, Kingsbury County, SD, Lake County, SD, Minnehaha County, SD, Moody County, SD

The radar

The Sioux Falls radar (KFSD), 60 km from the middle of the area, began a volume at 09:05 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 00:00Z, 9.1 hours before the alert went out and 234 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: 656 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: -88 m²/s²
0-3 km storm-relative helicity: 28 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 Jan 18, 10:36 PM CST, 4 hours 29 minutes earlier.

Area forecast discussion, Jan 18, 10:36 PM CST, 4 hours 29 minutes before

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Hazardous weather outlook, Jan 18, 2:56 PM CST, 12 hours 9 minutes before

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Nearby

Wind Chill Advisories in Iowa, 2022 Wind Chill Advisories in Minnesota, 2022 Wind Chill Advisories in South Dakota, 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.