Winter Weather Advisory 13, NWS Sioux Falls, SD

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, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Bon Homme County, SD, Clay County, SD, Hutchinson County, SD, Lincoln County, SD, McCook County, SD, Minnehaha County, SD, Turner County, SD, Union County, SD, Yankton County, SD

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HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
0538 AM CST SAT DEC 13 2008

SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-141200-
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-
0538 AM CST SAT DEC 13 2008

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 WILL BECOME LIKELY FROM SOUTH CENTRAL INTO EAST
CENTRAL SOUTH DAKOTA...MAINLY WEST OF A LINE FROM LAKE ANDES TO
MITCHELL TO BROOKINGS...LATE TONIGHT. UP TO AN INCH OF NEW SNOW
WILL BE POSSIBLE WEST OF THE JAMES RIVER BY DAYBREAK
SUNDAY...WITH SOME AREAS OF BLOWING SNOW AS NORTHWEST WINDS
INCREASE TO 20 TO 30 MPH.

THERE IS A SLIGHT CHANCE OF LIGHT FREEZING RAIN OR FREEZING
DRIZZLE IN AREAS FARTHER TO THE SOUTHEAST. ANY AMOUNTS WILL BE
VERY LIGHT... THOUGH PATCHY ICING IS POSSIBLE.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

WEATHER CONDITIONS ARE EXPECTED TO RAPIDLY DETERIORATE EARLY
SUNDAY MORNING ACROSS MUCH OF CENTRAL AND EAST CENTRAL SOUTH
DAKOTA...INTO PARTS OF SOUTHWEST MINNESOTA. SNOW WILL SPREAD FROM
WEST TO EAST ACROSS THE AREA...WITH THE GREATEST SNOWFALL
ACCUMULATIONS OF 2 TO 4 INCHES EXPECTED NORTH OF A LINE FROM LAKE
ANDES SOUTH DAKOTA...TO SALEM SOUTH DAKOTA...TO SLAYTON
MINNESOTA. NORTHERLY WINDS OF 25 TO 35 MPH WITH SOME HIGHER GUSTS
ARE EXPECTED TO ACCOMPANY THE FALLING SNOW. THIS MAY REDUCE
VISIBILITIES TO LESS THAN ONE QUARTER MILE...CREATING WHITEOUT
CONDITIONS AT TIMES IN THESE AREAS ON SUNDAY. THOUGH LESS
SNOWFALL IS EXPECTED FARTHER SOUTHEAST...LOCATIONS FROM FAR
SOUTHEAST SOUTH DAKOTA...INTO NORTHWEST IOWA AND THE I-90
CORRIDOR IN SOUTHWEST MINNESOTA COULD STILL SEE SOME LIGHT
SNOWFALL AND AREAS OF BLOWING SNOW ON SUNDAY INTO SUNDAY EVENING.

IN ADDITION...TEMPERATURES WILL PLUMMET AS ARCTIC AIR SURGES
SOUTH OUT OF CANADA. THE COMBINATION OF STRONG WINDS AND ARCTIC
AIR WILL PRODUCE WIND CHILLS OF 20 TO 35 BELOW ZERO LATER SUNDAY
NIGHT AND MONDAY OVER MOST OF THE REGION.

THERE IS A CHANCE OF LIGHT SNOW ACCUMULATIONS ACROSS THE AREA
AGAIN ON TUESDAY.

.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.

 JH