Alert archive / South Dakota / Wind Chill Advisories in 2022

Wind Chill Advisory 12, NWS Sioux Falls, SD

December 19, 202223 counties in South Dakota; 4 counties in Minnesota

NWS Sioux Falls, SD issued this wind chill advisory at Dec 19, 2022, 2:49 AM CST for 23 counties in South Dakota; 4 counties in Minnesota. It took effect at Dec 20, 2022, 2:00 AM CST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Dec 19, 2022, 2:49 AM CST (08:49 UTC)
In effect from
Dec 20, 2022, 2:00 AM CST
Expired
Dec 20, 2022, 10:00 AM CST
In force
8 hr
Issued by
NWS Sioux Falls, SD
All 27 counties

Lincoln County, MN, Murray County, MN, Pipestone County, MN, Rock County, MN, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brookings County, SD, Brule County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson 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, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 65 km from the middle of the area, began a volume at 08:51 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, 8.8 hours before the alert went out and 150 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-pSkew-T log-p diagram, Aberdeen, SD at 00:00Z on 2022-12-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 00:00Z on 2022-12-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
703 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
269 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 19, 2:49 AM CSTWind Chill WatchFSDAurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more24 hr
Dec 19, 2:15 PM CSTWinter Storm WatchFSDAurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more48 hr

Nearby

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