Alert archive / South Dakota / Wind Chill Advisories in 2013

Wind Chill Advisory 12, NWS Sioux Falls, SD

December 22, 20137 counties in South Dakota; Lincoln County, Lyon County, Minnesota

NWS Sioux Falls, SD issued this wind chill advisory at Dec 22, 2013, 9:51 PM CST for 7 counties in South Dakota; Lincoln County, Lyon County, Minnesota. It took effect at Dec 23, 2013, 10:00 AM CST. It was in force for 26 hr.

The area

The counties it named.

The facts

Issued: Dec 22, 2013, 9:51 PM CST (03:51 UTC)
In effect from: Dec 23, 2013, 10:00 AM CST
Expired: Dec 24, 2013, 12:00 PM CST
In force: 26 hr
Issued by: NWS Sioux Falls, SD

Counties Lincoln County, MN, Lyon County, MN, Beadle County, SD, Brookings County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, Miner County, SD, Sanborn County, SD

The radar

The Sioux Falls radar (KFSD), 87 km from the middle of the area, began a volume at 03:49 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, 3.9 hours before the alert went out and 111 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: 799 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: -46 m²/s²
0-3 km storm-relative helicity: 3 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 Dec 22, 5:28 PM CST, 4 hours 23 minutes earlier.

Area forecast discussion, Dec 22, 5:28 PM CST, 4 hours 23 minutes before

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Hazardous weather outlook, Dec 22, 5:11 AM CST, 16 hours 40 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 22, 9:51 PM CST	Wind Chill Warning	FSD	Beadle, Brookings, Jerauld, Kingsbury, Lake, Miner and 1 more	12 hr

Nearby

Wind Chill Advisories in South Dakota, 2013 Wind Chill Advisories in Minnesota, 2013 Every wind chill advisory in 2013

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.