Alert archive / South Dakota / Wind Chill Advisories in 2009

Wind Chill Advisory 9, NWS Aberdeen, SD

March 10, 200926 counties in South Dakota; Big Stone County, Traverse County, Minnesota

NWS Aberdeen, SD issued this wind chill advisory at Mar 10, 2009, 2:22 PM CDT for 26 counties in South Dakota; Big Stone County, Traverse County, Minnesota. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued: Mar 10, 2009, 2:22 PM CDT (19:22 UTC)
Expired: Mar 11, 2009, 12:00 PM CDT
In force: 22 hr
Issued by: NWS Aberdeen, SD

All 28 counties

Big Stone County, MN, Traverse County, MN, Brown County, SD, Buffalo County, SD, Campbell County, SD, Clark County, SD, Codington County, SD, Corson County, SD, Day County, SD, Deuel County, SD, Dewey County, SD, Edmunds County, SD, Faulk County, SD, Grant County, SD, Hamlin County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Jones County, SD, Lyman County, SD, Marshall County, SD, McPherson County, SD, Potter County, SD, Roberts County, SD, Spink County, SD, Stanley County, SD, Sully County, SD, Walworth County, SD

The radar

The Aberdeen radar (KABR), 56 km from the middle of the area, began a volume at 19:23 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 12:00Z, 7.4 hours before the alert went out and 34 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: 1 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 544 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 300 m²/s²
0-3 km storm-relative helicity: 635 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 Mar 10, 11:56 AM CDT, 2 hours 26 minutes earlier.

Area forecast discussion, Mar 10, 11:56 AM CDT, 2 hours 26 minutes before

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Hazardous weather outlook, Mar 10, 4:43 AM CDT, 9 hours 39 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ABERDEEN SD
443 AM CDT TUE MAR 10 2009

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-110945-
TRAVERSE-BIG STONE-CORSON-CAMPBELL-MCPHERSON-BROWN-MARSHALL-
ROBERTS-WALWORTH-EDMUNDS-DAY-DEWEY-POTTER-FAULK-SPINK-CLARK-
CODINGTON-GRANT-HAMLIN-DEUEL-STANLEY-SULLY-HUGHES-HYDE-HAND-JONES-
LYMAN-BUFFALO-
443 AM CDT TUE MAR 10 2009 /343 AM MDT TUE MAR 10 2009/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL
MINNESOTA...CENTRAL SOUTH DAKOTA...NORTH CENTRAL SOUTH DAKOTA AND
NORTHEAST SOUTH DAKOTA.

.DAY ONE...TODAY AND TONIGHT

A WINTER STORM WILL IMPACT THE AREA THROUGH THIS EVENING.
ACCUMULATING SNOW OVER CENTRAL SOUTH DAKOTA EARLY THIS MORNING
WILL SPREAD EAST ACROSS THE STATE THROUGH THE REST OF THE MORNING.
WINTER STORM WARNINGS AND BLIZZARD WARNINGS HAVE BEEN POSTED FOR
NORTHERN SOUTH DAKOTA...WITH WINTER WEATHER ADVISORIES ACROSS THE
SOUTHERN HALF OF THE STATE. THE HEAVIEST SNOW WILL OCCUR ACROSS
THE NORTHERN FORECAST AREA WITH A SWATH OF 4 TO 8 INCHES...WITH
LOCALLY HIGHER AMOUNTS POSSIBLE. NORTH WINDS FROM 20 TO 30 MPH
WITH GUSTS FROM 35 TO 45 MPH WILL CREATE AREAS OF BLOWING AND
DRIFTING SNOW.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ANY REPORTS OF SNOWFALL ACCUMULATIONS AND POOR VISIBILITY DUE TO
BLOWING SNOW ARE GREATLY APPRECIATED BY THE NATIONAL WEATHER
SERVICE.

TMT

In the hours before

Local storm report, Mar 10, 9:43 AM CDT, 4 hours 39 minutes before

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Local storm report, Mar 10, 9:44 AM CDT, 4 hours 38 minutes before

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Local storm report, Mar 10, 10:40 AM CDT, 3 hours 42 minutes before

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Local storm report, Mar 10, 11:55 AM CDT, 2 hours 27 minutes before

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Local storm report, Mar 10, 1:22 PM CDT, 1 hour before

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Local storm report, Mar 10, 1:29 PM CDT, 53 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 10, 5:50 PM CDT	Winter Weather Advisory	ABR	Brown, Edmunds, Faulk, McPherson, Spink	3 hr

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.