070
WWUS73 KFSD 191805
NPWFSD
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
105 PM CDT SUN JUL 19 2026
SDZ050-063>065-068-069-200615-
/O.NEW.KFSD.HT.Y.0005.260720T1700Z-260721T0100Z/
/O.CON.KFSD.HT.Y.0004.000000T0000Z-260720T0200Z/
GREGORY-CHARLES MIX-DOUGLAS-HUTCHINSON-BON HOMME-YANKTON-
INCLUDING THE CITIES OF FREEMAN, CORSICA, DELMONT, SPRINGFIELD, AVON,
SCOTLAND, ARMOUR, CLAYTON, TABOR, BURKE, TRIPP, PARKSTON, GREGORY,
PLATTE, MARTY, LAKE ANDES, MENNO, TYNDALL, WAGNER, AND YANKTON
105 PM CDT SUN JUL 19 2026
..HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT MONDAY
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING
* WHAT...HEAT INDEX VALUES UP TO 103 ARE EXPECTED TODAY AND MONDAY.
* WHERE...PORTIONS OF SOUTH CENTRAL AND SOUTHEAST SOUTH DAKOTA.
* WHEN...FOR THE FIRST HEAT ADVISORY, UNTIL 9 PM CDT THIS EVENING.
FOR THE SECOND HEAT ADVISORY, FROM NOON TO 8 PM CDT MONDAY.
* 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.
IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ066-067-070-071-
200615-
/O.NEW.KFSD.HT.Y.0005.260720T1700Z-260721T0100Z/
LYON-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-CLAY-PLYMOUTH-CHEROKEE-BUENA
VISTA-WOODBURY-IDA-DIXON-DAKOTA-TURNER-LINCOLN-CLAY-UNION-
INCLUDING THE CITIES OF ALCESTER, GEORGE, SANBORN, IDA GROVE, ORANGE
CITY, INWOOD, IRENE, CANTON, MARION, LENNOX, HARRISBURG, SPENCER,
CHEROKEE, HURLEY, HULL, ELK POINT, ROCK VALLEY, JEFFERSON,
CHANCELLOR, STORM LAKE, PARKER, SIOUX CITY, HAWARDEN, TEA,
CENTERVILLE, SIBLEY, LE MARS, ROCK RAPIDS, ARNOLDS PARK, SIOUX
CENTER, VIBORG, BATTLE CREEK, PONCA, BERESFORD, VERMILLION,
LARCHWOOD, NORTH SIOUX CITY, SPIRIT LAKE, ALLEN, HARTLEY, WAKEFIELD,
SOUTH SIOUX CITY, MILFORD, SHELDON, AND HOLSTEIN
105 PM CDT SUN JUL 19 2026
..HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT MONDAY
* 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 MONDAY.
* 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.
SDZ038-052-053-057>060-200200-
/O.CON.KFSD.HT.Y.0004.000000T0000Z-260720T0200Z/
BEADLE-JERAULD-SANBORN-BRULE-AURORA-DAVISON-HANSON-
INCLUDING THE CITIES OF WHITE LAKE, MITCHELL, WESSINGTON SPRINGS,
PLANKINTON, STICKNEY, ALPENA, ALEXANDRIA, HURON, KIMBALL,
CHAMBERLAIN, WOONSOCKET, AND EMERY
105 PM CDT SUN JUL 19 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING
* WHAT...HEAT INDEX VALUES UP TO 100 EXPECTED.
* WHERE...PORTIONS OF CENTRAL, EAST CENTRAL, SOUTH CENTRAL, AND
SOUTHEAST SOUTH DAKOTA.
* WHEN...UNTIL 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.
MEYERS
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