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 Jul 24, 9:15 AM CST, 1 hour 15 minutes earlier.
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 1015 AM CDT WED JUL 24 2001 BONAFIDE TORRENTIAL RAINFALL ACCOMPANYING MCS ACRS SERN SD...XTRM NW IA...AND SW MN THIS MORNING. THUSFAR...STILL WORKING TO BUILD THE NEW DAILY RAINFALL RECORD AT FSD /THRU 10AM...2.14 INCHES/. ACTIVITY IS MAINLY ALG AND N OF STAGNANT LOW LVL BOUNDARY ACRS ERN NEBR AND NW IA...WITH LTST STLT TREND SHOTING REDEVLOPMENT ON SRN FLANK...WITH ADDITIONAL LARGE STRATIFORM AREA IN WAKE. FBY PROF INDICATING MORE THAN FAIR LOW LVL FEED...SO EXPECT CONTINUED TREND FOR REDEVELOPMENT ON SRN FLANK OF MCS THRU AFTN...WITH FOCUS SHIFTING TO NW IA AND SW MN...ALONG WITH WK MID LVL TROUGH. SEVERE THREAT WOULD ALSO BE MINIMAL WITH EXTEND OF STABILIZATION...AND LESS THAN STRONG WND SHEAR. LCLY HVY RAINFALL IS ONLY REMOTE THREAT. TECH NOTES...KFSD RADAR IS STILL OTM UFN. ALSO FOR GOES STLT " ENTHUSIASTS...SIGNIFICANT DEGREE OF PARALLAX OCCURRING WITH RADAR/LIGHTNING DATA DISPLACED ABOUT 20NM TO SOUTH OF STLT COLDEST TOPS. .FSD...NONE CHAPMAN
SIGNIFICANT WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 1115 AM CST TUE JUL 24 2001 *** THIS SIGNIFICANT WEATHER OUTLOOK FROM THE NATIONAL WEATHER SERVICE PERTAINS ONLY TO CONDITIONS ASSOCIATED WITH THUNDERSTORMS. *** .SYNOPSIS... A LARGE CONVECTIVE CLUSTER ACROSS SOUTHEAST SOUTH DAKOTA...NORTHWEST IOWA...SOUTHWEST MINNESOTA...AND NORTHEAST NEBRASKA LATE THIS MORNING WILL BEGIN TO WEAKEN OVERALL...AND REFOCUS TO THE SOUTH AND EAST WITH THE LOW LEVEL AIR FEED OVER A FRONTAL BOUNDARY ACROSS NORTHWEST IOWA THIS AFTERNOON. LOCALLY HEAVY RAIN IS THE GREATEST THREAT FROM THESE STORMS...WHICH SHOULD EASE EVERYWHERE BY LATE AFTERNOON. THIS COMPLEX WILL RESULT IN AN OVERALL STABILIZING OF THE AIRMASS ACROSS THE AREA. A WEAK DISTURBANCE MAY BRUSH A FEW SHOWERS AND THUNDERSTORMS LATER THIS AFTERNOON ALONG THE NORTHERN PORTION OF THE AREA. MNZ089-090-IAZ001>003-012>014-020>022-031-032-250500- NOBLES-JACKSON-LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-PLYMOUTH- CHEROKEE-BUENA VISTA-WOODBURY-IDA- INCLUDING THE CITIES OF...WORTHINGTON...ROCK RAPIDS...SPIRIT LAKE... SIOUX CENTER...SPENCER...LE MARS...STORM LAKE...SIOUX CITY... 1100 AM CST TUE JUL 24 2001 * FORECAST THROUGH MIDNIGHT: A CLUSTER OF THUNDERSTORMS WILL CONTINUE ACROSS NORTHWEST IOWA EARLY THIS AFTERNOON...BEFORE WINDING DOWN MID AFTERNOON. * SIGNIFICANT WEATHER: LOCALLY HEAVY RAIN. * SPOTTER ACTIVATION: SPOTTER ACTIVATION IS NOT ANTICIPATED. SDZ038>040-052>055-250500- BEADLE-KINGSBURY-BROOKINGS-JERAULD-SANBORN-MINER-LAKE- INCLUDING THE CITIES OF...HURON...BROOKINGS... 1100 AM CST TUE JUL 24 2001 * FORECAST THROUGH MIDNIGHT: SIGNIFICANT WEATHER IS NOT EXPECTED IN THIS AREA THROUGH MIDNIGHT. * SIGNIFICANT WEATHER: NONE. * SPOTTER ACTIVATION: SPOTTER ACTIVATION IS NOT ANTICIPATED. SDZ056-061-062-066-067-070-071-MNZ071-072-080-081-097-098-NEZ013-014-250500- LINCOLN-LYON-MOODY-PIPESTONE-MURRAY-COTTONWOOD-MCCOOK-MINNEHAHA-ROCK- TURNER-LINCOLN-CLAY-UNION-DIXON-DAKOTA- INCLUDING THE CITIES OF...PIPESTONE...SLAYTON...SIOUX FALLS...LUVERNE... 1100 AM CST TUE JUL 24 2001 * FORECAST THROUGH MIDNIGHT: RAIN WITH EMBEDDED THUNDERSTORMS WILL TAPER OFF MIDDAY...WITH NO SIGNIFICANT WEATHER EXPECTED. THERE IS A CHANCE OF LATE AFTERNOON SHOWERS AND THUNDERSTORMS AGAIN NEAR MARSHALL. * SIGNIFICANT WEATHER: NONE. * SPOTTER ACTIVATION: SPOTTER ACTIVATION IS NOT ANTICIPATED. SDZ050-057>060-063>065-068-069-250500- BRULE-AURORA-DAVISON-HANSON-GREGORY-CHARLES MIX-DOUGLAS-HUTCHINSON- BON HOMME-YANKTON- INCLUDING THE CITIES OF...CHAMBERLAIN...MITCHELL...YANKTON... 1100 AM CST TUE JUL 24 2001 * FORECAST THROUGH MIDNIGHT: SIGNIFICANT WEATHER IS NOT EXPECTED IN THIS AREA THROUGH MIDNIGHT. * SIGNIFICANT WEATHER: NONE. * SPOTTER ACTIVATION: SPOTTER ACTIVATION IS NOT ANTICIPATED.
The national radar mosaic for the moment the first event began.
1 flash flood. Local standard time, as filed.
Heavy rainfall of around two inches caused flooding of streets and small creeks in town.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2001Every state in 2001This day in weather historyWarnings in Iowa, July 2001
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: 5261237.