1 funnel cloud, 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 Rapid City, SD wrote its last area forecast discussion before the first event at Jul 4, 1:10 PM MST, 28 minutes earlier.
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY NATIONAL WEATHER SERVICE RAPID CITY SD 210 PM MDT WED JUL 4 2001 MDLS INITIALIZED WL BUT THE AVN SEEMS TO HAVE A LOT OF CONVECTIVE FEEDBACK TNGT WHICH CAUSES SOME PROBLEMS IN THE LATER PERIODS. MAIN FCST CONCERN IS THE S/W THAT WL MV THRU NE WY AND SW SD BEGINNING AROUND 00Z. THIS WAVE IS MUCH MORE IMPRESSIVE THAN THE ONE YESTERDAY WHICH BROUGHT A FEW SUPERCELLS TO THE AREA. GD SHEAR AND INSTABILITY FCST SO DO NOT SEE WHY ANOTHER NIGHT LIKE TUE WILL NOT HAPPEN. LOWS TNGT SHLD BE ABOUT 5 DEG WARMER THAN LAST NIGHT WITH SLY WINDS STAYING UP AND SOME WAA. TMRW...SLY WINDS CONTINUE ACRS CWA WITH VERY STRONG WAA AT H70. BY 00Z FRI...H70 TEMPS WARM TO +14 TO +17 ACRS AREA. THIS SHLD CAP THE AREA OF ANY TSMS DURING THE AFTN. THINK HIGHS TMRW WL APPROACH 100 IN THE WARM SPOTS OF THE CWA WITH 90S MOST OTHER PLACES. MOS TEMPS LK A LTL LOW AND HAVE RAISED A FEW DEGREES. THU NIGHT...A COLD FNT/TROF WL MOVE THRU CWA. NOT MUCH MOISTURE AND H70 TEMPS REMAIN VERY WARM EXCEPT FOR THE FAR NRN COUNTIES. THINK A FEW STORMS COULD RUN ALONG THE ND/SD BORDER BUT THAT SHLD BE ABOUT IT. JUST WENT WITH 20 POPS THERE. FRI SHLD REMAIN CAPPED S OF I-90 THRU THE DAY. THERE WL BE A S/W THAT PASSES ACRS THE N THAT COULD FIRE OFF A TS OR TWO. OTHERWISE ANOTHER DAY WITH HIGHS IN THE MID 80S TO MID 90S ACRS CWA. FRI NIGHT COULD SEE SOME TSMS ACRS AREAS TO THE S AS A DISTURBANCE BREAKS DOWN THE RDG A BIT AND COULD BREAK THE CAP. SFC BOUNDARY WL BE ACRS THE S AS WELL AND THERE COULD BE SOME CONVECTION IN THIS AREA DURING THE EVENING. IN THE EXTENDED...SIMILAR PATTERN AS WE CURRENTLY HAVE WITH A DIRTY RIDGE IN PLACE AND A SERIES OF DISTURBANCES MOVING THRU JUST ABOUT EACH DAY. THIS SHLD KEEP US FROM GETTING TOO HOT BUT THERE WL BE A CHC FOR TSMS JUST ABOUT EACH DAY THRU TUE. BY WED...STRONGER RDG BUILDS OVER WRN PLNS AdND WL WARM REGION UP AND KEEP IT DRY. .UNR...TORNADO WATCH UNTIL 9 PM MDT FOR NE WY AND PARTS OF WRN SD. JMG
SDZ001-002-012>014-024>032-041>044-046-047-049-WYZ054>058-042000- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE RAPID CITY SD 1103 AM MDT WED JUL 4 2001 ...SLIGHT RISK OF SEVERE THUNDERSTORMS LATE AFTERNOON AND EVENING... ISOLATED THUNDERSTORMS ARE EXPECTED OVER NORTHEASTERN WYOMING AND WESTERN SOUTH DAKOTA LATE THIS AFTERNOON AND THROUGH THE EVENING...WITH A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THIS SAME AREA. THE MAIN THREATS FROM THE SEVERE THUNDERSTORMS WILL BE HAIL LARGER THAN 3/4 INCH...STRAIGHT LINE WINDS GREATER THAN 60 MPH...AND TORNADOES ARE ALSO POSSIBLE. .DISCUSSION... A NEARLY STATIONARY FRONT EXTENDING FROM NORTHEASTERN WYOMING...THROUGH SOUTHWESTERN SOUTH DAKOTA WILL BE THE MAIN FOCUS FOR THUNDERSTORMS. ADDITIONALLY A WEAK UPPER LEVEL DISTURBANCE WILL MOVE OUT OF MONTANA AND ACROSS NORTHWESTERN SOUTH DAKOTA...THIS WILL ALSO SUPPORT ISOLATED THUNDERSTORM DEVELOPMENT. THE ATMOSPHERIC ENVIRONMENT OVER NORTHEASTERN WYOMING AND WESTERN SOUTH DAKOTA FAVORS STRONG...ROTATING THUNDERSTORMS WHICH CAN PRODUCE VERY LARGE HAIL AND TORNADOS. COUNTIES INCLUDED IN THIS OUTLOOK ARE...CUSTER...TRIPP...BENNETT... SHANNO/N...JACKSON...ZIEBACH...PERKINS...MEADE...BUTTE...HARDING... CROOK...CAMPBELL...LAWRENCE...MELLETTE...TODD...WESTON...HAAKON... FALL RIVER AND PENNINGTON. WCJIN-WYNE 99
The Rapid City radar (KUDX), 217 km away, was scanning. The volume nearest the first event began at 20:35 UTC.
1 funnel cloud. Local standard time, as filed.
Law enforcement officer reported seeing two funnel clouds.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2001Every state in 2001This day in weather historyWarnings in Wyoming, 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: 5259942.