674
WWUS73 KFSD 230054
NPWFSD
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
754 PM CDT TUE JUL 22 2025
IAZ003-012>014-020>022-031-032-NEZ013-014-SDZ070-071-231200-
/O.EXP.KFSD.HT.Y.0003.000000T0000Z-250723T0100Z/
/O.CON.KFSD.HT.Y.0004.250723T1700Z-250724T0100Z/
DICKINSON-SIOUX-O'BRIEN-CLAY-PLYMOUTH-CHEROKEE-BUENA VISTA-
WOODBURY-IDA-DIXON-DAKOTA-CLAY-UNION-
INCLUDING THE CITIES OF IDA GROVE, ALLEN, SIOUX CITY, NORTH SIOUX
CITY, SOUTH SIOUX CITY, ARNOLDS PARK, ROCK VALLEY, HULL, SPIRIT
LAKE, HARTLEY, ORANGE CITY, SIOUX CENTER, JEFFERSON, PONCA,
SHELDON, WAKEFIELD, VERMILLION, HOLSTEIN, SPENCER, STORM LAKE,
CHEROKEE, ELK POINT, HAWARDEN, BATTLE CREEK, MILFORD, BERESFORD,
SANBORN, ALCESTER, AND LE MARS
754 PM CDT TUE JUL 22 2025
..HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT WEDNESDAY
* WHAT...HEAT INDEX VALUES UP TO 105 EXPECTED.
* WHERE...PORTIONS OF NORTHWEST AND WEST CENTRAL IOWA, NORTHEAST
NEBRASKA, AND SOUTHEAST SOUTH DAKOTA.
* WHEN...FROM NOON TO 8 PM CDT WEDNESDAY.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
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.
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.
IAZ001-002-MNZ071-072-080-081-089-090-097-098-SDZ038>040-050-052>069-
230200-
/O.EXP.KFSD.HT.Y.0003.000000T0000Z-250723T0100Z/
LYON-OSCEOLA-LINCOLN-LYON-MURRAY-COTTONWOOD-NOBLES-JACKSON-
PIPESTONE-ROCK-BEADLE-KINGSBURY-BROOKINGS-GREGORY-JERAULD-SANBORN-
MINER-LAKE-MOODY-BRULE-AURORA-DAVISON-HANSON-MCCOOK-MINNEHAHA-
CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-YANKTON-
INCLUDING THE CITIES OF ARMOUR, HOWARD, TYLER, LARCHWOOD, LAKE
PRESTON, WOONSOCKET, CLAYTON, HARRISBURG, TABOR, STICKNEY,
SLAYTON, BURKE, DELMONT, FULDA, SIBLEY, PARKER, CORSICA, YANKTON,
WAGNER, MARTY, MENNO, VIBORG, WORTHINGTON, PIPESTONE, FREEMAN,
MOUNTAIN LAKE, ARLINGTON, IRENE, MARSHALL, TEA, ROCK RAPIDS,
CENTERVILLE, WHITE LAKE, CHANCELLOR, LENNOX, SALEM, SPRINGFIELD,
BROOKINGS, PLANKINTON, HENDRICKS, CHAMBERLAIN, PARKSTON, LAKE
BENTON, JACKSON, GREGORY, CANISTOTA, ALEXANDRIA, MONTROSE, EMERY,
KIMBALL, PLATTE, WESSINGTON SPRINGS, GEORGE, ALPENA, LAKE ANDES,
MADISON, IVANHOE, MITCHELL, BRIDGEWATER, TYNDALL, SCOTLAND,
LUVERNE, CANTON, TRIPP, MARION, LAKEFIELD, HURON, ORLAND, HURLEY,
WINDOM, DE SMET, SIOUX FALLS, INWOOD, AVON, AND FLANDREAU
754 PM CDT TUE JUL 22 2025
..HEAT ADVISORY WILL EXPIRE AT 8 PM CDT THIS EVENING
TEMPERATURES AND HEAT INDICES WILL CONTINUE TO GRADUALLY DECREASE
HEADING INTO THE OVERNIGHT HOURS.
IG
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