899
FLUS43 KFSD 271009
HWOFSD
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
509 AM CDT SAT JUN 27 2026
IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ038>040-050-052>071-281015-
LYON-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-CLAY-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-LINCOLN-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-BON HOMME-YANKTON-
UNION-
509 AM CDT SAT JUN 27 2026
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST IOWA, WEST CENTRAL
IOWA, SOUTHWEST MINNESOTA, NORTHEAST NEBRASKA, CENTRAL SOUTH
DAKOTA, EAST CENTRAL SOUTH DAKOTA, SOUTH CENTRAL SOUTH DAKOTA AND
SOUTHEAST SOUTH DAKOTA.
DAY ONE
TODAY AND TONIGHT.
SCATTERED STORMS ARE POSSIBLE AFTER MIDNIGHT TONIGHT INTO EARLY
SUNDAY, MAINLY THROUGH PORTIONS OF SOUTHEAST SOUTH DAKOTA INTO
SOUTHWEST MINNESOTA. A FEW STORMS MAY BECOME STRONG TO SEVERE, WITH
LARGE HAIL UP TO 1.5 INCH DIAMETER AND ISOLATED WIND GUSTS TO 65 MPH.
DAYS TWO THROUGH SEVEN
SUNDAY THROUGH FRIDAY.
TEMPERATURES CLIMB INTO THE 90S SUNDAY THROUGH MUCH OF NEXT WEEK,
WITH INCREASING HUMIDITY. HEAT INDEX VALUES WILL CLIMB INTO THE
LOWER 100S AT TIMES. PLAN AHEAD NOW TO LIMIT RISK OF HEAT ILLNESS IF
SPENDING TIME OUTDOORS.
IF STORMS ARE ABLE TO DEVELOP ALONG A COLD FRONT LATE MONDAY INTO
MONDAY EVENING, SOME STRONG TO SEVERE STORMS ARE POSSIBLE. DETAILS ON
EXACT STORM LOCATION, TIMING AND COVERAGE ARE STILL UNCERTAIN.
SPOTTER INFORMATION STATEMENT
SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
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