A line of thunderstorms produced strong winds across eastern Pennington and eastern Meade Counties late in the evening.
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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 episode as NWS UNR wrote it up.
A line of thunderstorms produced strong winds across eastern Pennington and eastern Meade Counties late in the evening.
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 25, 6:45 PM MST, 3 hours 45 minutes earlier.
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY NATIONAL WEATHER SERVICE RAPID CITY SD 745 PM MDT WED JUL 25 2007 .DISCUSSION...SFC BOUNDARY HAS MOVED SEWD TO NEAR A KPHP-KIEN LINE AS OF EARLY THIS EVE...AS IS EVIDENCED BY SCT LINE OF TSTMS THAT HAS DEVELOPED. AMS HAS BECOME LARGELY STABLE BEHIND THIS BOUNDARY AS COOLER AIR FILTERS SWD INTO THE NRN HIGH PLAINS. EXPECT SCT TSTMS TO CONTINUE THIS EVE ALG AND SOUTH OF THE BOUNDARY AS IT MOVES SLOWLY SEWD...WITH A GRADUAL DECREASE IN COVERAGE/INTENSITY BY LATER THIS EVE. SVR THREAT IS MINIMAL...WITH VERY LITTLE IN THE WAY OF WINDS/SHEAR ON THE 00Z KUNR SOUNDING. BIGGEST CHANGE TO FCST IS TO INCREASE POPS IN OUR SWRN ZONES TONIGHT AND EARLY THU. ACTIVITY CONTINUES TO DEVELOP AND MOVE NEWD OUT OF CNTRL WY THIS EVE...AND SHOULD CONTINUE TO SPREAD INTO NERN WY AND OUR FAR SWRN ZONES TONIGHT AS UPR WAVE/MOISTURE OVERRUNS UPSLOPE FLOW BEHIND CDFNT. BEST CHANCE ON THU FOR PCPN THEN LOOKS TO BE CONFINED TO AREAS ALONG/SOUTH I-90. UPDATES ON THE WAY. && .AVIATION...NMRS -SHRA/-TSRA WILL SPREAD NEWD ACRS TWEB ROUTES 258...259...AND 285 TONIGHT WITH AREAS OF MVFR CIGS/VSBYS. FURTHER NORTH/EAST VFR CONDITIONS WITH ISOLD-SCT -SHRA/-TSRA. && .UNR WATCHES/WARNINGS/ADVISORIES... SD...NONE. WY...NONE. && JOHNSON
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE RAPID CITY SD 1045 AM MDT WED JUL 25 2007 SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058- 071-261300- BENNETT-BUTTE-CENTRAL BLACK HILLS-CUSTER CO PLAINS-FALL RIVER-HAAKON- HARDING-HERMOSA FOOT HILLS-JACKSON-MELLETTE-NORTHEASTERN CROOK- NORTHERN BLACK HILLS-NORTHERN CAMPBELL-NORTHERN FOOT HILLS- NORTHERN MEADE CO PLAINS-PENNINGTON CO PLAINS-PERKINS-RAPID CITY- SHANNON-SOUTHERN BLACK HILLS-SOUTHERN CAMPBELL-SOUTHERN FOOT HILLS- SOUTHERN MEADE CO PLAINS-STURGIS/PIEDMONT FOOT HILLS-TODD-TRIPP- WESTERN CROOK-WESTON-WYOMING BLACK HILLS-ZIEBACH- 1045 AM MDT (1145 AM CDT) WED JUL 25 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND NORTHEASTERN WYOMING. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS WILL DEVELOP OVER NORTHEASTERN WYOMING AND FAR WESTERN SOUTH DAKOTA THIS AFTERNOON...THEN SPREAD ACROSS THE REST OF WESTERN AND CENTRAL SOUTH DAKOTA OVERNIGHT. ALTHOUGH WIDESPREAD SEVERE STORMS ARE NOT EXPECTED...SOME STORMS MAY PRODUCE STRONG WIND GUSTS AND LARGE HAIL. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY AN UPPER LEVEL TROUGH MOVING ACROSS THE REGION THURSDAY WILL BRING SCATTERED THUNDERSTORMS. NO SEVERE WEATHER IS EXPECTED AT THIS TIME. ANOTHER UPPER LEVEL DISTURBANCE WILL BRING A CHANCE OF THUNDERSTORMS TO THE AREA SATURDAY AFTERNOON AND EVENING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.
The Rapid City radar (KUDX), 28 km away, was scanning. The volume nearest the first event began at 05:30 UTC.
2 thunderstorm wind. Local standard time, as filed.
A semi-truck was blown onto its side by thunderstorm wind gusts. Event time was estimated from dispatch reports.
Wind gusts reached 75 mph at 1040 pm MST, then peaked at 90 mph at 1055 pm.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 2007Every state in 2007This day in weather historyWarnings in South Dakota, July 2007
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: 39042, 39041.