1 lightning, 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 Sep 4, 8:00 PM CST, 0 minutes earlier.
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 900 PM CDT SAT SEP 4 2004 .DISCUSSION... CURRENT FCST LOOKS GOOD. PRECIP MOVG UP FM CNTRL NEB WL SPREAD INTO WRN CWA AS THE NIGHT PROGRESSES...REACHING I29 AFT 06Z. && .FSD...WATCHES/WARNINGS/ADVISORIES... SD...NONE. MN...NONE. IA...NONE. NE...NONE. && M
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 1113 AM CDT SAT SEP 04 2004 SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098- IAZ001>003-012>014-020>022-031-032-NEZ013-014-051200- 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- 1113 AM CDT SAT SEP 04 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS... A COLD FRONT FOLLOWED BY A STRONG UPPER LEVEL TROUGH OF LOW PRESSURE WILL MOVE EASTWARD INTO EASTERN SOUTH DAKOTA LATER THIS AFTERNOON AND EVENING. SOUTHERLY WINDS AHEAD OF THE FRONT WILL CONTINUE TO BRING IN WARM AND RATHER MOIST AND UNSTABLE AIR. SCATTERED THUNDERSTORMS WILL DEVELOP NEAR THIS FRONT LATE THIS AFTERNOON AND EVENING. A FEW STORMS MAY CONTAIN LARGE HAIL AND WIND GUSTS UP TO 60 MPH NEAR AND WEST OF THE JAMES VALLEY. OTHERWISE...THUNDERSTORMS SHOULD PROGRESS EAST OVER THE AREA LATER TONIGHT WITH LOCALLY HEAVY RAINS POSSIBLE. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THUNDERSTORMS WILL CONTINUE INTO SUNDAY MORNING...WITH THE BEST CHANCE BEING EAST OF A LINE FROM YANKTON TO BROOKINGS SOUTH DAKOTA. BY SUNDAY AFTERNOON THE BEST CHANCE FOR THUNDERSTORMS WILL SHIFT TO EAST OF A LINE FROM VERMILLION SOUTH DAKOTA TO MARSHALL MINNESOTA. SOME OF THESE THUNDERSTORMS MAY BECOME SEVERE WITH DAMAGING WINDS AND LARGE HAIL. THE CHANCE OF THUNDERSTORMS...ALONG WITH ANYTHING SEVERE...WILL DECREASE FROM WEST TO EAST DURING SUNDAY EVENING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE POSSIBLE AFTER 5 PM CDT WEST OF A LINE FROM HURON TO YANKTON SOUTH DAKOTA. && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.CRH.NOAA.GOV/FSD. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
750 PM CDT SAT SEP 04 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0730 PM HAIL 7 ESE MOUNT VERNON 43.67N 98.13W
09/04/2004 1.00 INCH DAVISON SD PUBLIC
0740 PM HAIL 5 N MITCHELL 43.81N 98.03W
09/04/2004 0.75 INCH DAVISON SD TRAINED SPOTTER
&&
TRMPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
854 PM CDT SAT SEP 04 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0758 PM HAIL 3 ESE ARTESIAN 43.99N 97.87W
09/04/2004 1.00 INCH SANBORN SD PUBLIC
0803 PM HAIL 1 W FEDORA 44.01N 97.81W
09/04/2004 0.75 INCH MINER SD PUBLIC
&&
TRMThe Sioux Falls radar (KFSD), 114 km away, was scanning. The volume nearest the first event began at 01:57 UTC.
1 lightning. Local standard time, as filed.
Lightning struck and damaged a brick chimney, and burned out a transformer at an amusement center.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 2004Every state in 2004This day in weather historyWarnings in South Dakota, 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: 5424389.