291
WWUS73 KFSD 190833
NPWFSD
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
333 AM CDT SUN JUL 19 2026
SDZ038-050-052-053-057>060-063>065-068-069-191900-
/O.CON.KFSD.HT.Y.0004.260719T1800Z-260720T0200Z/
BEADLE-GREGORY-JERAULD-SANBORN-BRULE-AURORA-DAVISON-HANSON-
CHARLES MIX-DOUGLAS-HUTCHINSON-BON HOMME-YANKTON-
INCLUDING THE CITIES OF MITCHELL, TRIPP, BURKE, CORSICA, TABOR,
CHAMBERLAIN, ALPENA, MARTY, TYNDALL, WOONSOCKET, YANKTON, AVON,
WESSINGTON SPRINGS, EMERY, WAGNER, PARKSTON, CLAYTON, KIMBALL, LAKE
ANDES, ARMOUR, FREEMAN, HURON, MENNO, WHITE LAKE, ALEXANDRIA,
DELMONT, PLATTE, GREGORY, SCOTLAND, PLANKINTON, SPRINGFIELD, AND
STICKNEY
333 AM CDT SUN JUL 19 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM
CDT THIS EVENING...
* WHAT...HEAT INDEX VALUES UP TO 103 EXPECTED.
* WHERE...PORTIONS OF CENTRAL, EAST CENTRAL, SOUTH CENTRAL, AND
SOUTHEAST SOUTH DAKOTA.
* WHEN...FROM 1 PM THIS AFTERNOON TO 9 PM CDT THIS EVENING.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
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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