Alert archive / South Dakota / Winter Weather Advisories in 2007

Winter Weather Advisory 2, NWS Sioux Falls, SD

February 27, 20075 counties in South Dakota; 5 counties in Iowa

NWS Sioux Falls, SD issued this winter weather advisory at Feb 27, 2007, 4:30 PM CST for 5 counties in South Dakota; 5 counties in Iowa. It took effect at Feb 28, 2007, 2:00 AM CST. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Feb 27, 2007, 4:30 PM CST (22:30 UTC)
In effect from
Feb 28, 2007, 2:00 AM CST
Expired
Feb 28, 2007, 12:07 PM CST
In force
10 hr
Issued by
NWS Sioux Falls, SD

Counties Buena Vista County, IA, Cherokee County, IA, Ida County, IA, Plymouth County, IA, Woodbury County, IA, Bon Homme County, SD, Clay County, SD, Hutchinson County, SD, Union County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 88 km from the middle of the area, began a volume at 22:29 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 27, 10:59 AM CST, 5 hours 31 minutes earlier.

Area forecast discussion, Feb 27, 10:59 AM CST, 5 hours 31 minutes before
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Hazardous weather outlook, Feb 27, 5:39 AM CST, 10 hours 51 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
0539 AM CST TUE FEB 27 2007

SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-281200-
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-
0539 AM CST TUE FEB 27 2007

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

.DAY ONE...TODAY AND TONIGHT

WINTER WEATHER...

SNOW WILL DEVELOP OVER SOUTH CENTRAL SOUTH DAKOTA AFTER 6 PM
TONIGHT...AND THEN SPREAD TO THE NORTH AND EAST DURING THE
OVERNIGHT HOURS. SNOW MAY BECOME HEAVY AT TIMES...AND WILL
ACCUMULATE 2 TO 4 INCHES WEST OF A LINE ROUGHLY FROM YANKTON TO
SIOUX FALLS TO JUST EAST OF BROOKINGS BY 7 AM ON WEDNESDAY.
HIGHEST AMOUNTS WILL BE IN THE NORTHERN JAMES RIVER VALLEY NORTH
OF INTERSTATE 90 AND WEST OF INTERSTATE 29.  PLACES IN FAR
NORTHEASTERN NEBRASKA...SOUTHWESTERN MINNESOTA...AND NORTHWESTERN
IOWA WILL RECEIVE LESS THAN 2 INCHES OF SNOWFALL BY EARLY ON
WEDNESDAY MORNING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

SNOW WILL CONTINUE TO FALL THROUGH THE AFTERNOON HOURS ON
WEDNESDAY...AND MAY TAPER OFF TO FREEZING DRIZZLE BY LATER IN THE
AFTERNOON.  TOTAL SNOW ACCUMULATION BY WEDNESDAY AFTERNOON WILL
BE 4 TO 6 INCHES NORTH OF INTERSTATE 90...AND 2 TO 4 INCHES SOUTH
OF THIS LINE.

ANOTHER STORM SYSTEM WILL BRING ADDITIONAL SNOW TO THE AREA ON
THURSDAY.  AT THIS TIME...IT APPEARS THAT THE HEAVIEST SNOW WILL
OCCUR IN AREAS EAST OF INTERSTATE 29.  WHILE MOST PLACES COULD
SEE 3 TO 6 INCHES OF SNOW WITH THE SYSTEM...PORTIONS OF
SOUTHWESTERN MINNESOTA COULD GET UP TO 6 TO 8 INCHES BY THURSDAY
NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

&&

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

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 27, 4:08 AM CSTSnow AdvisoryFSDAurora, Beadle, Brookings, Brule, Charles Mix, Davison and 14 more44 hr
Feb 27, 4:08 AM CSTWinter Storm WarningFSDBeadle, Brookings, Kingsbury, Lake, Miner, Moody24 hr
Feb 27, 4:08 AM CSTWinter Storm WatchFSDBuena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 3 more24 hr

Nearby

Winter Weather Advisories in South Dakota, 2007Winter Weather Advisories in Iowa, 2007Every winter weather advisory in 2007

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.