Alert archive / South Dakota / Wind Chill Advisories in 2013

Wind Chill Advisory 7, NWS Sioux Falls, SD

February 19, 2013Beadle County, Miner County, South Dakota

NWS Sioux Falls, SD issued this wind chill advisory at Feb 19, 2013, 8:51 PM CST for Beadle County, Miner County, South Dakota. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Feb 19, 2013, 8:51 PM CST (02:51 UTC)
Expired
Feb 20, 2013, 9:00 AM CST
In force
12 hr
Issued by
NWS Sioux Falls, SD

Counties Beadle County, SD, Miner County, SD

The radar

The Sioux Falls radar (KFSD), 120 km from the middle of the area, began a volume at 02:51 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

Omaha, NE (KOAX), launched 00:00Z, 2.9 hours before the alert went out and 347 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, Omaha, NE at 00:00Z on 2013-02-20Temperature 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, Omaha, NE at 00:00Z on 2013-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939587897Sfc1 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
2518 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
85 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
Feb 20, 11:02 AM CSTWinter Weather AdvisoryFSDAurora, Bon Homme, Brule, Charles Mix, Clay, Davison and 12 more49 hr

Nearby

Wind Chill Advisories in South Dakota, 2013Every 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.