874
FLUS43 KFSD 070915
HWOFSD
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
415 AM CDT THU AUG 7 2025
IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ038>040-050-052>071-080915-
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-
415 AM CDT THU AUG 7 2025
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.
HEAT AND HUMIDITY INCREASE TODAY WITH HEAT INDEX VALUES IN THE 90S TO
NEAR 105 - HIGHEST FOR THE MISSOURI AND JAMES RIVER VALLEYS THIS
AFTERNOON INTO THIS EVENING.
LOW (LESS THAN 20%) CHANCES FOR STORMS ALONG US HIGHWAY 14 THIS
EVENING AND TONIGHT. IF A STORM MOVES INTO THE AREA, ISOLATED WIND
GUSTS TO 60 MPH ARE POSSIBLE.
DAYS TWO THROUGH SEVEN
FRIDAY THROUGH WEDNESDAY.
HEAT AND HUMIDITY CONTINUE FRIDAY. AFTERNOON AND EVENING PEAK HEAT
INDEX VALUES RISE BETWEEN 95 AND 105 DEGREES.
INCREASED THUNDERSTORMS RISKS RETURN FRIDAY EVENING INTO SATURDAY
MORNING. WHILE UNCERTAINTY REMAINS ON THE LOCATION AND TIMING OF
THUNDERSTORM ACTIVITY, STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE.
HAZARDS INCLUDE WIND GUSTS TO 70 MPH, HAIL TO 2 INCHES IN DIAMETER,
AND A TORNADO OR TWO. THOSE WITH OUTDOOR PLANS ARE URGED TO CONTINUE
MONITORING THE FORECAST.
SPOTTER INFORMATION STATEMENT
SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
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