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 Cheyenne, WY wrote its last area forecast discussion before the first event at Aug 31, 1:35 PM MST, 2 hours 41 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHEYENNE WY 235 PM MDT FRI AUG 31 2001 SCT SHOWERS AND TSTORMS DVPG OVR AREA ATTM WITH UPR DIST MOVG ACROSS WY. EXPECT ACTIVITY TO CONT THIS EVNG WITH UPR SYSTEM MOVG SLOWLY EWRD. MODELS IN GOOD AGREEMENT MOVING UPPER TROF INTO NEBRASKA SATURDAY BUT SOME ENERGY STILL LAGS INTO SE WY. W PART OF CWA LOOKS DRY SAT BUT WL KEEP LOW POPS E WITH SYSTEM STILL IN AREA. ACTIVITY WILL BE MORE ISOLD WITH LIS ONLY IN THE -1 RANGE AND LIMITED MOISTURE. SHOULD DRY OUT SAT NIGHT AND SUNDAY WITH UPR RIDGING OVER THE MTNS INTO THE NRN PLAINS AND NVA SPREADING ACROSS THE CWA. .EXTENDED DISCUSSION...DRY WEATHER FOR THE HOLIDAY WITH SOME MONSOONAL MOISTURE POSSIBLY AFFECTING WRN PARTS OF CWA BY TUE. A CHANGE IN THE WX IS STILL ON TAP BY MID TO LATE IN THE WEEK. ALTHOUGH MRF LOOKS TO BE OVERDOING ITS BIG CUTOFF UPPER LOW OVER WRN U.S. EVEN A COMPROMISE IN THE MDLS BRINGS A CDFNT ACRS WY FOR AT LEAST A SLIGHT COOLING OF TEMPS ALG WITH A CHANCE OF SHWRS/FEW TSTMS. .CYS... WY...NONE. NE...NONE. RE/JLH
The national radar mosaic for the moment the first event began.
1 hail. Local standard time, as filed.
1.75 inch hail fell over the southwest side of Alliance, NE.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nebraska in 2001Every state in 2001This day in weather historyWarnings in Nebraska, August 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: 5257441.