1 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sioux Falls, SD wrote its last area forecast discussion before the first event at May 29, 2:13 AM CST, 47 minutes earlier.
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 315 AM CDT WED MAY 29 2002 MODELS ARE IN REASONABLE AGREEMENT OVER THE SHORT TERM. GENERALLY USED MESO ETA FOR TIMING AND COVERAGE OF THE CHANCE OF THUNDERSTORMS LATER TODAY AND TONIGHT. UPPER LEVEL TROUGH SUPPORTING DEVELOPMENT OF SCATTERED THUNDERSTORMS. EXPANDED THE CHANCE OF RAIN INTO THE SOUTHERN CWA ALSO. SLOW MOVING THUNDERSTORMS PRODUCED FLASH FLOODING IN SOUTHWEST PLYMOUTH COUNTY OF IA. LOCALIZED PROBLEM AND EXPECT TO ALLOW THE FLASH FLOOD WARNING TO EXPIRE BEFORE 6 AM. TEMPERATURES HAVE BEEN FAIRLY UNIFORM ACROSS THE CWA THE PAST COUPLE OF DAYS... AND I EXPECT THAT TO CONTINUE THURSDAY. NO LARGE DEVIATIONS FROM THE MOS TEMPERATURE GUIDANCE VALUES. NO CHANGE TO THE EXTENDED FORECAST FOR NOW...BUT THE COOLER TEMPERATURE FORECAST MAY NOT WORK OUT AS PLANNED BASED ON THE NEW MRF. .FSD...NONE UMLAND
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1159 PM CDT TUE MAY 28 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0939 PM 2 WSW BURBANK SD .88 INCH HAIL
05/28/02 CLAY REPORTED BY PUBLIC.
1000 PM SERGEANT BLUFF IA .88 INCH HAIL
05/28/02 WOODBURY REPORTED BY LAW
ENFORCEMENT OFFICIAL.
1000 PM SIOUX CITY IA 1.25 INCH HAIL
05/28/02 WOODBURY REPORTED BY LAW
ENFORCEMENT OFFICIAL.
1008 PM SERGEANT BLUFF IA 1.75 INCH HAIL
05/28/02 WOODBURY REPORTED BY LAW
ENFORCEMENT OFFICIAL.
1050 PM OKOBOJI IA .88 INCH HAIL
05/28/02 DICKINSON REPORTED BY LAW
ENFORCEMENT OFFICIAL.
1051 PM 3 W SPIRIT LAKE IA .88 INCH HAIL
05/28/02 DICKINSON REPORTED BY STORM
SPOTTER.
1130 PM 4 W ELK PT SD .75 INCH HAIL
05/28/02 UNION REPORTED BY LAW
ENFORCEMENT OFFICIAL.The Sioux Falls radar (KFSD), 103 km away, was scanning. The volume nearest the first event began at 09:00 UTC.
1 flash flood. Local standard time, as filed.
A two mile stretch of highway K22 was flooded after heavy rain. Debris was reported floating over the road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2002Every state in 2002This day in weather historyWarnings in Iowa, May 2002
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5295624.