Alert archive / South Dakota / Wind Chill Advisories in 2009

Wind Chill Advisory 8, NWS Aberdeen, SD

February 26, 200916 counties in South Dakota; Big Stone County, Traverse County, Minnesota

NWS Aberdeen, SD issued this wind chill advisory at Feb 26, 2009, 3:13 PM CST for 16 counties in South Dakota; Big Stone County, Traverse County, Minnesota. It took effect at Feb 26, 2009, 6:00 PM CST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: Feb 26, 2009, 3:13 PM CST (21:13 UTC)
In effect from: Feb 26, 2009, 6:00 PM CST
Expired: Feb 27, 2009, 12:05 PM CST
In force: 18 hr
Issued by: NWS Aberdeen, SD

Counties Big Stone County, MN, Traverse County, MN, Brown County, SD, Buffalo County, SD, Clark County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Edmunds County, SD, Faulk County, SD, Grant County, SD, Hamlin County, SD, Hand County, SD, Hyde County, SD, Marshall County, SD, McPherson County, SD, Roberts County, SD, Spink County, SD

The radar

The Aberdeen radar (KABR), 53 km from the middle of the area, began a volume at 21:15 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

Bismarck Municip, ND (KBIS), launched 12:00Z, 9.2 hours before the alert went out and 282 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: 626 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 77 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 Aberdeen, SD wrote its last area forecast discussion before this wind chill advisory went out at Feb 26, 12:30 PM CST, 2 hours 43 minutes earlier.

Area forecast discussion, Feb 26, 12:30 PM CST, 2 hours 43 minutes before

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Hazardous weather outlook, Feb 26, 3:33 AM CST, 11 hours 40 minutes before

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In the hours before

Local storm report, Feb 26, 10:18 AM CST, 4 hours 55 minutes before

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Local storm report, Feb 26, 10:19 AM CST, 4 hours 54 minutes before

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Local storm report, Feb 26, 11:12 AM CST, 4 hours 1 minute before

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Local storm report, Feb 26, 11:24 AM CST, 3 hours 49 minutes before

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Local storm report, Feb 26, 11:26 AM CST, 3 hours 47 minutes before

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Local storm report, Feb 26, 2:18 PM CST, 55 minutes before

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Nearby

Wind Chill Advisories in South Dakota, 2009 Wind Chill Advisories in Minnesota, 2009 Every wind chill advisory in 2009

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.