Alert archive / Iowa / Winter Weather Advisories in 2012

Winter Weather Advisory 4, NWS Sioux Falls, SD

February 12, 2012Clay County, Union County, South Dakota; 6 counties in Iowa

NWS Sioux Falls, SD issued this winter weather advisory at Feb 12, 2012, 2:08 PM CST for Clay County, Union County, South Dakota; 6 counties in Iowa. It took effect at Feb 13, 2012, 4:00 AM CST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Feb 12, 2012, 2:08 PM CST (20:08 UTC)
In effect from: Feb 13, 2012, 4:00 AM CST
Expired: Feb 13, 2012, 12:00 PM CST
In force: 8 hr
Issued by: NWS Sioux Falls, SD

Counties Cherokee County, IA, Ida County, IA, O'Brien County, IA, Plymouth County, IA, Sioux County, IA, Woodbury County, IA, Clay County, SD, Union County, SD

The radar

The Sioux Falls radar (KFSD), 104 km from the middle of the area, began a volume at 20:11 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.

What forecasters said that day

The local office's own words before this winter weather 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 winter weather advisory went out at Feb 12, 12:27 PM CST, 1 hour 41 minutes earlier.

Area forecast discussion, Feb 12, 12:27 PM CST, 1 hour 41 minutes before

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Hazardous weather outlook, Feb 12, 4:38 AM CST, 9 hours 30 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
0438 AM CST SUN FEB 12 2012

SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-131200-
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-
0438 AM CST SUN FEB 12 2012

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

.DAY ONE...TODAY AND TONIGHT

WINTER WEATHER...
LIGHT SNOW IS EXPECTED TO DEVELOP AFTER MIDNIGHT TONIGHT IN AREAS
ALONG THE SOUTHERN MISSOURI RIVER CORRIDOR INTO PORTIONS OF
NORTHWESTERN IOWA. SNOWFALL ACCUMULATIONS BY EARLY MONDAY MORNING
WILL RANGE FROM LESS THAN HALF AN INCH NORTH OF YANKTON TO CANTON
TO STORM LAKE...TO AROUND 1 INCH FROM VERMILLION TO SIOUX CITY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

LIGHT SNOW WILL CONTINUE TO EXPAND TO THE NORTH AND EAST ON
MONDAY MORNING. THE BETTER ACCUMULATION OF SNOW MAY OCCUR DURING
THE MORNING COMMUTE...SO COMMUTERS IN NORTHEASTERN NEBRASKA INTO
NORTHWESTERN IOWA SHOULD TAKE PRECAUTIONS WHILE DRIVING.
ADDITIONAL SNOWFALL ON MONDAY WILL BE IN THE RANGE OF 1 INCH FROM
A LINE RUNNING FROM YANKTON TO JACKSON MINNESOTA...TO AROUND 2
INCHES THROUGH THE SIOUX CITY TO STORM LAKE CORRIDOR.

.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

Winter Weather Advisories in Iowa, 2012 Winter Weather Advisories in South Dakota, 2012 Every winter weather advisory in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.