602
WWUS73 KFSD 080759
NPWFSD
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
259 AM CDT FRI AUG 8 2025
IAZ002-003-081830-
/O.EXB.KFSD.HT.Y.0008.250808T1800Z-250809T0100Z/
OSCEOLA-DICKINSON-
INCLUDING THE CITIES OF MILFORD, ARNOLDS PARK, SIBLEY, AND SPIRIT
LAKE
259 AM CDT FRI AUG 8 2025
...HEAT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM CDT THIS
EVENING...
* WHAT...HEAT INDEX VALUES UP TO 105 EXPECTED.
* WHERE...DICKINSON AND OSCEOLA COUNTIES.
* WHEN...FROM 1 PM THIS AFTERNOON TO 8 PM CDT THIS EVENING.
* 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.
IAZ001-012>014-020>022-031-032-NEZ013-014-SDZ060>062-065>071-081830-
/O.EXT.KFSD.HT.Y.0008.250808T1800Z-250809T0100Z/
LYON-SIOUX-O'BRIEN-CLAY-PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-
IDA-DIXON-DAKOTA-HANSON-MCCOOK-MINNEHAHA-HUTCHINSON-TURNER-
LINCOLN-BON HOMME-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF PONCA, IDA GROVE, IRENE, ALLEN, VIBORG,
TEA, TYNDALL, GEORGE, CENTERVILLE, SPRINGFIELD, ALCESTER, HULL,
SCOTLAND, SALEM, ALEXANDRIA, LE MARS, AVON, HAWARDEN, YANKTON,
SHELDON, NORTH SIOUX CITY, SIOUX CENTER, PARKSTON, CHANCELLOR,
HOLSTEIN, LENNOX, WAKEFIELD, STORM LAKE, SOUTH SIOUX CITY,
CANISTOTA, SIOUX FALLS, BERESFORD, LARCHWOOD, ROCK RAPIDS,
BRIDGEWATER, SANBORN, FREEMAN, SIOUX CITY, ORANGE CITY, MONTROSE,
MENNO, PARKER, CHEROKEE, HURLEY, ROCK VALLEY, BATTLE CREEK,
TABOR, INWOOD, CLAYTON, SPENCER, MARION, CANTON, VERMILLION,
JEFFERSON, HARRISBURG, HARTLEY, ELK POINT, EMERY, AND TRIPP
259 AM CDT FRI AUG 8 2025
...HEAT ADVISORY NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM CDT
THIS EVENING...
* WHAT...HEAT INDEX VALUES UP TO 105 EXPECTED.
* WHERE...PORTIONS OF NORTHWEST AND WEST CENTRAL IOWA, NORTHEAST
NEBRASKA, AND SOUTHEAST SOUTH DAKOTA.
* WHEN...FROM 1 PM THIS AFTERNOON TO 8 PM CDT THIS EVENING.
* 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.
IG
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