1 thunderstorm wind, 1 hail, as filed by the National Weather Service.
Every event with a place to put it. 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 Jun 19, 12:43 PM CST, 7 hours 55 minutes earlier.
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 143 PM CDT WED JUN 19 2002 ...MAIN CONCERNS ARE CONVECTIVE CHANCES THIS AFTERNOON AND EVENING THEN AGAIN LATE THURSDAY NIGHT INTO FRIDAY... WATER VAPOR LOOP SHOWING STRONG UPPER LEVEL WAVE MOVING INTO NORTHWEST SD. 500 MB TEMPS -15 C TO -20 C WITHIN THIS UPPER WAVE WHICH SHOULD AID IN INCREASING CONVECTIVE POTENTIAL LATE THIS AFTERNOON AND EARLY THIS EVENING. SFC FRONT HAS STALLED ACROSS WESTERN CWA...ABOUT FROM MITCHELL TO ARMOUR AT18Z...AND IS ABOUT 100 MILES WEST OF BOTH THE ETA AND AVN PROGS. CONVECTIVE PARAMETERS COMING TOGETHER WITH GOOD HEATING AND MODERATE SHEAR SO SEVERE POTENTIAL INCREASING AS WE APPROACH 90 IN MANY LOCATIONS. ETA ALSO CONFUSED WITH EARLY MORNING CONVECTION OVER SW MN...WHICH LIFTED NORTHEAST...BUT THE ETA TOOK AND DROVE DUE SOUTH INTO NORTHWEST IA...POLLUTING THE FIRST 24 HOURS OF THE MODEL RUN WITH A NON EXISTENT FRONT. AT THIS TIME IT LOOKS LIKE BEST CHANCE FOR SEVERE WILL BE ACROSS SOUTHEAST SD AND NORTHWEST IOWA. WITH POTENTIAL FOR SUPERCELLS SOME HAIL COULD BE LARGE. WILL BUMP UP POPS FOR ALL AREAS TONIGHT...TAPERING OFF TO THE NORTH. WILL WATCH FOR INITIAL DEVELOPMENT FROM ABOUT BROOKINGS TO TYNDALL. DOES APPEAR TO BE THE POTENTIAL FOR TWO AREAS OF CONVECTION...DEVELOPMENT AHEAD OF FRONT THIS AFTERNOON AND EVENING...THEN A POSSIBLE MCS DEVELOPING OVER WESTERN NE AND MOVING EAST NORTHEAST...AFFECTING MAINLY THE SOUTHERN CWA. ALSO SOME POTENTIAL FOR HEAVY RAIN BUT WILL NOT ISSUE A FLOOD WATCH AT THIS TIME SINCE WE HAVE HAD VERY LITTLE RAINFALL SO FAR...EXCEPT EXTREME SOUTHERN CWA. AFTER THIS...HIGH PRESSURE MOVES IN WITH RETURN FLOW BECOMING ESTABLISHED THURSDAY NIGHT. WILL MAINTAIN POPS THURSDAY NIGHT INTO FRIDAY AS MOISTURE RETURN IS PRETTY SIGNIFICANT. AFTER FRIDAY...MUCH WARMER AND BREEZIER CONDITIONS CAN BE EXPECTED WITH NEXT BEST CHANCE FOR PRECIP MONDAY NIGHT AND TUESDAY. WILL SEE 80S AND A FEW 90S ACROSS MOST OF THE CWA SAT-MON...POSSIBLY APPROACHING 100 NEAR THE MO RIVER ON SUNDAY. .FSD...NONE 08
The Sioux Falls radar (KFSD), 89 km away, was scanning. The volume nearest the first event began at 02:39 UTC.
1 thunderstorm wind, 1 hail. Local standard time, as filed.
Thunderstorm winds caused tree damage, including 3 inch diameter branches blown down.
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, June 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: 5305814, 5305815.