Alert archive / Iowa / Wind Chill Advisories in 2010

Wind Chill Advisory 1, NWS Sioux Falls, SD

January 1, 2010Brookings County, Moody County, South Dakota; 11 counties in Iowa; 8 counties in Minnesota

NWS Sioux Falls, SD issued this wind chill advisory at Jan 1, 2010, 10:17 AM CST for Brookings County, Moody County, South Dakota; 11 counties in Iowa; 8 counties in Minnesota. It took effect at Jan 1, 2010, 3:00 PM CST. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: Jan 1, 2010, 10:17 AM CST (16:17 UTC)
In effect from: Jan 1, 2010, 3:00 PM CST
Expired: Jan 2, 2010, 4:00 AM CST
In force: 13 hr
Issued by: NWS Sioux Falls, SD

All 21 counties

Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Ida County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Plymouth County, IA, Sioux County, IA, Woodbury County, IA, Cottonwood County, MN, Jackson County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Brookings County, SD, Moody County, SD

The radar

The Sioux Falls radar (KFSD), 74 km from the middle of the area, began a volume at 16:22 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

Minneapolis, MN (KMPX), launched 12:00Z, 4.3 hours before the alert went out and 236 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: 579 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: -44 m²/s²
0-3 km storm-relative helicity: 133 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 Jan 1, 4:00 AM CST, 6 hours 17 minutes earlier.

Area forecast discussion, Jan 1, 4:00 AM CST, 6 hours 17 minutes before

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Hazardous weather outlook, Jan 1, 4:44 AM CST, 5 hours 33 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
0444 AM CST FRI JAN 01 2010

SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-021200-
AURORA-BEADLE-BON HOMME-BROOKINGS-BRULE-BUENA VISTA IA-
CHARLES MIX-CHEROKEE IA-CLAY-CLAY IA-COTTONWOOD MN-DAKOTA NE-
DAVISON-DICKINSON IA-DIXON NE-DOUGLAS-GREGORY-HANSON-HUTCHINSON-
IDA IA-JACKSON MN-JERAULD-KINGSBURY-LAKE-LINCOLN-LINCOLN MN-
LYON IA-LYON MN-MCCOOK-MINER-MINNEHAHA-MOODY-MURRAY MN-NOBLES MN-
OBRIEN IA-OSCEOLA IA-PIPESTONE MN-PLYMOUTH IA-ROCK MN-SANBORN-
SIOUX IA-TURNER-UNION-WOODBURY IA-YANKTON-
0444 AM CST FRI JAN 01 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA...
SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA.

.DAY ONE...TODAY AND TONIGHT

WINTER WEATHER...

A PERIOD OF LIGHT SNOW FROM THIS MORNING INTO THE EARLY AFTERNOON
WILL LEAVE BEHIND LESS THAN AN INCH OF SNOW MAINLY FROM
CHAMBERLAIN AND MITCHELL THROUGH THE MISSOURI RIVER CORRIDOR.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

LIGHT SNOW WILL DEVELOP ON SATURDAY AFTERNOON THROUGH CENTRAL
SOUTH DAKOTA...THEN PUSH TO THE SOUTH AND EAST ON SATURDAY NIGHT.
THE MAIN AREAS AFFECTED WOULD BE THE JAMES RIVER VALLEY AND
THROUGH THE MISSOURI RIVER CORRIDOR. SNOWFALL IS EXPECTED TO BE
LIGHT...WITH HIGHEST AMOUNTS ALONG THE MISSOURI RIVER CORRIDOR
WHERE AROUND 2 INCHES MAY ACCUMULATE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

&&

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.WEATHER.GOV/SIOUXFALLS. THIS INCLUDES THE GRAPHICAL HAZARDOUS
WEATHER OUTLOOK.

Nearby

Wind Chill Advisories in Iowa, 2010 Wind Chill Advisories in Minnesota, 2010 Wind Chill Advisories in South Dakota, 2010 Every wind chill advisory in 2010

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.