1 tornado, 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 Sep 5, 8:50 AM CST, 5 hours 16 minutes earlier.
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 950 AM CDT SUN SEP 5 2004 .DISCUSSION... SFC LOW WILL MOVE SLOWLY NEWD OVR SERN SD THIS AFTN AND CNTRL MN THIS EVE. JUICY SSELY LOW LVL FLOW AHEAD OF LOW...LIMITED BY LACK HEATING THIS MRNG DUE TO CLDS AND DVLPG SHWRS/TSTMS FM WRN CWA TO NEB AHEAD OF MID LVL TROUGH WHICH WILL MOVE EWD OVR CWA THIS AFTN AND EARLY EVE AS PER FCST. ANY MIXING AT ALL SHOULD GET TEMPS UP TOWARDS FCST...AND A FEW TSTMS COULD BCM SVR WITH STG SWLY WINDS ABV SFC MIXING DOWN AS PER SPC...ESP IN BTR HEATING AREAS IN SERN CWA THIS AFTN. FINE TUNED WX GRIDS EARLIER DUE TO A LIT SLOWER EWD MOVEMENT OF SYS...BUT WILL HOLD OFF ON ZONE UPDATES FOR NOW. && .FSD...WATCHES/WARNINGS/ADVISORIES... SD...NONE. MN...NONE. IA...NONE. NE...NONE. && RSR
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 1046 AM CDT SUN SEP 05 2004 SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098- IAZ001>003-012>014-020>022-031-032-NEZ013-014-061200- AURORA-BEADLE-BON HOMME-BROOKINGS-BRULE-BUENA VISTA IA- CHARLES MIX-CHEROKEE IA-CLAY-CLAY IA-COTTONWOOD MN-DAKOTA NE- DAVISON-DICKINSON IA-DIXON NE-DOUGLAS-GREGORY-HANSON-HUTCHINSON- IDA IA-JACKSON MN-JERAULD-KINGSBURY-LAKE-LINCOLN-LINCOLN MN- LYON IA-LYON MN-MCCOOK-MINER-MINNEHAHA-MOODY-MURRAY MN-NOBLES MN- OBRIEN IA-OSCEOLA IA-PIPESTONE MN-PLYMOUTH IA-ROCK MN-SANBORN- SIOUX IA-TURNER-UNION-WOODBURY IA-YANKTON- 1046 AM CDT SUN SEP 05 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS... SCATTERED SHOWERS AND A FEW THUNDERSTORMS SHOULD CONTINUE WEST OF THE JAMES RIVER IN SOUTH DAKOTA THIS AFTERNOON AND EARLY EVENING. ANY THUNDERSTORMS ARE NOT EXPECTED TO BECOME SEVERE. SCATTERED SHOWERS AND THUNDERSTORMS WILL INCREASE IN AREAL COVERAGE AND INTENSITY AS THEY MOVE NORTHEAST FROM NEBRASKA...OVER SOUTHEAST SOUTH DAKOTA...SOUTHWEST MINNESOTA...AND NORTHWEST THIS AFTERNOON AND EARLY EVENING. DUE TO A LACK OF DAYTIME HEATING...WIDESPREAD SEVERE WEATHER IS NOT EXPECTED...BUT ISOLATED STORMS COULD PRODUCE WIND GUSTS TO 60 MPH AND NICKEL SIZE HAIL...MAINLY SOUTHEAST OF A LINE FROM BROOKINGS TO TYNDALL SOUTH DAKOTA. LOCALLY HEAVY RAIN IS LIKELY. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE POSSIBLE AFTER 2 PM CDT. && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.CRH.NOAA.GOV/FSD. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK. RSR
The Omaha radar (KOAX), 127 km away, was scanning. The volume nearest the first event began at 20:05 UTC.
1 tornado. Local standard time, as filed.
A tornado damaged corn and soybean crops, and trees. The tornado knocked down 3 power poles, and destroyed 5 outbuildings on two farms.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2004Every state in 2004This day in weather historyThe tornado archive for Iowa, 2004Warnings in Iowa, September 2004
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: 5424384.