1 thunderstorm wind, 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 Cheyenne, WY wrote its last area forecast discussion before the first event at Aug 6, 1:30 PM MST, 2 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHEYENNE WY 230 PM MDT MON AUG 6 2001 FAIRLY STRONG UPR WAVE MOVING WEST THRU CO...SETTING OFF SCT/WDLY SCT SHWRS/TSTMS. MOST OF THE ACTION OVR FAR SRN PARTS OF THE FA... WITHIN AREA OF SLIGHTLY DEEPER MSTR AND INSTABILITY. AVN APPEARS TO BE HAVING FEEDBACK PROBLEMS W/ QPF OVR THE NEW FEW DAYS /PER NCEP DISC/...AND WL TREND TOWARD ETA/MESO ETA SOLUTION. UPR HIGH SHIFTS SLOWLY EAST INTO THE CENTRAL PLAINS ON TUE...W/ BEST MSTR WRAPPING ARND THE BACKSIDE INTO WRN/CENTRL WY. PCPN ALSO ENHANCED W/ SFC CONVERGENCE INVOF OF PRE FRONTAL TROF DVLPG OVR CENTRAL WY DURING THE AFTN. WL PUT HIGHEST POPS MTNS-WESTWARD...W/ DRY CONDS FOR THE THE PANHANDLE. EXPECT TEMPS SIMILAR TO TODAY...AS H7 TEMPS SHOW MINIMAL CHANGE. MSTR INCR/S OVR THE CENTRAL PART OF THE STATE TUE NIGHT...AS DEEPER MSTR IS DRAWN NORTHWARD ALONG/IN ADVANCE OF SFC TROF. H7-H5 QG FORCING NOT THAT IMPRESSIVE OVERNIGHT...BUT ENOUGH INSTABILITY AND SFC CONVERGENCE FOR SCT POPS WRN/NRN AREAS. FRONT/TROF CONT/S TO SAG SOUTHEAST ON WED...ALTHOUGH SHOULD SHOW TYPICAL SLOWDOWN DURING THE DAYLIGHT HOURS. MORE IMPRESSIVE H7 Q VECTOR DIVERGENCE OVR MUCH OF CENTRAL/ERN WY DURING THE AFTN...RESULTING IN BETTER COVERAGE OF PCPN. NO REAL CAA BEHIND TROF...W/ MAIN COOL PUSH WED NITE. SOMEWHAT COOLER WRN/NRN AREAS WED...MAINLY ASSOC WITH INCRD CLOUD COVER. FAR SOUTHEAST WY/SRN PANHANDLE MAY SEE ANOTHER FAIRLY WARM DAY AS H7 TEMPS REMAIN ARND +16 DEGC AND CLOUDS LESS. .EXTENDED DISCUSSION...LATEST RUN OF THE MRF ADVERTISING A BIG CHANGE IN TEMPERATURE FOR THURSDAY BEHIND A COLD FRONT THAT PASSES THRU THE STATE ON WEDNESDAY. BETTER CHANCE OF RAIN THRU AT LEAST FRIDAY BEFORE RIDGE BEGINS AMPLIFYING IN THE GREAT BASIN AND THEN SHIFT EAST OVER WY SUNDAY AND MONDAY. TEMPERATURES REBOUND WITH THE RIDGE MOVING BACK INTO THE STATE AND DRIER CONDITIONS RETURN. FMR AND GUIDANCE TEMPS LOOK REASONABLE. .CYS... WY...NONE. NE...NONE. JK/JLS
The national radar mosaic for the moment the first event began.
1 thunderstorm wind. Local standard time, as filed.
Several out buildings destroyed on farm by strong thunderstorm wind gust.
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: 5257438.