Heat Advisory 4, 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, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brookings County, SD, Brule County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Sanborn County, SD, Turner County, SD, Union County, SD, Yankton County, SD

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HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
908 AM CDT FRI JUL 28 2006

SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-291200-
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-
508 AM CDT FRI JUL 28 2006

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

.DAY ONE...TODAY AND TONIGHT

FIRE DANGER...
THE GRASSLAND FIRE DANGER INDEX WILL REACH THE VERY HIGH TO
EXTREME CATEGORY THIS AFTERNOON...ALONG AND WEST OF A WAGNER
SOUTH DAKOTA TO HURON LINE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

IT WILL REMAIN VERY HOT ACROSS THE AREA SATURDAY THROUGH MONDAY.
AFTERNOON HEAT INDEX VALUES WILL LIKELY BE IN THE 105 TO 110
DEGREE RANGE THROUGHOUT MUCH OF THIS AREA DURING THIS TIME FRAME.
THE SITUATION IS LIKELY TO BE SIMILAR TO A COUPLE OF WEEKENDS
AGO...WITH HIGH TEMPERATURES OF 105 TO 110 WEST OF A TYNDALL SOUTH
DAKOTA TO DE SMET SOUTH DAKOTA LINE. FURTHER EAST...THE AIR
TEMPERATURE WILL BE SLIGHTLY COOLER...BUT MUCH MORE HUMID CONDITIONS
WILL ADD TO THE HEAT INDEX.

IN ADDITION...THE FIRE DANGER WILL BE QUITE HIGH WEST OF A
TYNDALL SOUTH DAKOTA TO DE SMET SOUTH DAKOTA LINE. THIS WEEKEND
THE GRASSLAND FIRE DANGER INDEX WILL LIKELY REACH RED FLAG
WARNING CRITERIA IN SOUTH CENTRAL SOUTH DAKOTA...MEANING
CONDITIONS ARE FAVORABLE FOR EXPLOSIVE FIRE GROWTH. IN THE HURON
AND MITCHELL AREAS...THE GRASSLAND FIRE DANGER INDEX WILL BE
CLOSE TO RED FLAG CRITERIA...AND MOST CERTAINLY WILL REACH THE
EXTREME CATEGORY.

.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.

BT