927
WWUS73 KFSD 260649
NPWFSD
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
149 AM CDT SUN JUL 26 2026
IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ038>040-050-052>071-261700-
/O.EXT.KFSD.XH.W.0003.000000T0000Z-260727T0200Z/
LYON-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-CLAY-PLYMOUTH-CHEROKEE-BUENA
VISTA-WOODBURY-IDA-LINCOLN-LYON-MURRAY-COTTONWOOD-NOBLES-JACKSON-
PIPESTONE-ROCK-DIXON-DAKOTA-BEADLE-KINGSBURY-BROOKINGS-GREGORY-
JERAULD-SANBORN-MINER-LAKE-MOODY-BRULE-AURORA-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF ARMOUR, ALEXANDRIA, LAKE PRESTON, DELMONT,
WAGNER, SHELDON, SPRINGFIELD, ROCK VALLEY, ARNOLDS PARK, HAWARDEN,
PLATTE, IDA GROVE, FREEMAN, VERMILLION, HULL, SIOUX CITY, MOUNTAIN
LAKE, HURON, CHANCELLOR, SIBLEY, HARRISBURG, MILFORD, INWOOD,
CANISTOTA, SOUTH SIOUX CITY, BATTLE CREEK, TYNDALL, GREGORY,
FLANDREAU, LAKE BENTON, LENNOX, MENNO, CENTERVILLE, CHEROKEE, STORM
LAKE, PARKSTON, ARLINGTON, WESSINGTON SPRINGS, WAKEFIELD, ORANGE
CITY, LE MARS, BERESFORD, ORLAND, HENDRICKS, AVON, SANBORN, SLAYTON,
IVANHOE, HURLEY, MARSHALL, LARCHWOOD, ALPENA, CLAYTON, SALEM,
KIMBALL, TRIPP, FULDA, TEA, GEORGE, WINDOM, ELK POINT, WOONSOCKET,
LUVERNE, ROCK RAPIDS, TYLER, MADISON, STICKNEY, PIPESTONE, TABOR,
MITCHELL, YANKTON, CHAMBERLAIN, MARTY, WHITE LAKE, PONCA, JEFFERSON,
HARTLEY, DE SMET, MARION, BRIDGEWATER, ALLEN, PARKER, SIOUX FALLS,
CORSICA, IRENE, CANTON, NORTH SIOUX CITY, MONTROSE, LAKEFIELD,
WORTHINGTON, JACKSON, HOWARD, BROOKINGS, ALCESTER, SPIRIT LAKE,
BURKE, SIOUX CENTER, HOLSTEIN, EMERY, SCOTLAND, LAKE ANDES,
PLANKINTON, SPENCER, AND VIBORG
149 AM CDT SUN JUL 26 2026
..EXTREME HEAT WARNING NOW IN EFFECT UNTIL 9 PM CDT THIS EVENING
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES PEAKING
FROM 105 TO 115 DEGREES.
* WHERE...PORTIONS OF NORTHWEST AND WEST CENTRAL IOWA, SOUTHWEST
MINNESOTA, NORTHEAST NEBRASKA, AND CENTRAL, EAST CENTRAL, SOUTH
CENTRAL, AND SOUTHEAST SOUTH DAKOTA.
* WHEN...UNTIL 9 PM CDT THIS EVENING.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT AND HIGH HUMIDITY EVENTS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
JH
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