One to three inches of rain fell across southern Campbell and Weston Counties. Runoff caused flooding, which washed out a few roads in southern Weston County.
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 episode as NWS UNR wrote it up.
One to three inches of rain fell across southern Campbell and Weston Counties. Runoff caused flooding, which washed out a few roads in southern Weston County.
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 Jun 25, 3:13 AM MST, 47 minutes earlier.
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY NATIONAL WEATHER SERVICE RAPID CITY SD 413 AM MDT THU JUN 25 2015 .SHORT TERM...TODAY THROUGH FRIDAY NIGHT ISSUED AT 350 AM MDT THU JUN 25 2015 UPPER LEVEL ANALYSIS HAS WEAK RIDGE OVER THE PACIFIC COAST WITH NORTHWEST FLOW ACROSS THE NORTHERN PLAINS. A WEAK SHORTWAVE IS CURRENTLY MOVING THROUGH MONTANA...AND A CLUSTER OF THUNDERSTORMS IS CURRENTLY MOVING ACROSS NORTHEAST WYOMING AND FAR SOUTHERN SOUTH DAKOTA. AT THE SURFACE...WEAK HIGH PRESSURE IS LOCATED ACROSS THE DAKOTAS WITH LOW PRESSURE AND STATIONARY BOUNDARY ACROSS CENTRAL WYOMING. TEMPERATURES AT 3AM ARE IN THE 60S...WITH LIGHT AND VARIABLE WINDS. TODAY...MONTANA SHORTWAVE WILL CROSS THE NORTHERN PLAINS TODAY...PRODUCING ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS. CURRENT COMPLEX WILL SHIFT SOUTH AND EAST THIS MORNING...WITH MORE PRECIPITATION MOVING INTO NORTHEAST WYOMING BY MID MORNING...THEN SPREAD INTO THE BLACK HILLS AREA BY LATE MORNING. ACTIVITY LOOKS TO BE SCATTERED TO NUMEROUS THROUGH MUCH OF THE DAY. THE THREAT FOR SEVERE STORMS DOES NOT LOOK AS STRONG...BUT A FEW STRONGER STORMS ARE CERTAINLY POSSIBLE OVER PORTIONS OF NORTHEAST WY INTO SOUTHWEST SD...WITH 1000-1500 J/KG OF CAPE PRESENT BY EARLY AFTERNOON. WITH A LOT OF CLOUD COVER AND PCPN ACROSS THE AREA...TEMPS LOOK TO BE ON THE COOLER SIDE...WITH HIGHS MOSTLY IN THE MID 60S TO MID 70S. TONIGHT...UPPER SHORTWAVE SHIFTS EAST AS UPPER FLOW BECOMES MORE AMPLIFIED. PRECIPITATION WILL DIMINISH FROM WEST TO EAST AS SURFACE HIGH PRESSURE SETTLES INTO WESTERN SOUTH DAKOTA. LOWS WILL FALL INTO THE 50S ACROSS THE AREA. FRIDAY...UPPER FLOW BECOMES MORE AMPLIFIED AS UPPER RIDGE BUILDS ACROSS THE GREAT BASIN AND INTO THE NORTHERN AND CENTRAL ROCKIES. SKIES WILL BECOME MOSTLY SUNNY ACROSS THE AREA WITH HIGH TEMPERATURES CLIMBING BACK INTO THE UPPER 70S TO LOWER 80S. UPPER RIDGE CONTINUES TO BUILD INTO THE AREA FRIDAY NIGHT...WITH MOSTLY CLEAR SKIES EXPECTED AND LOWS IN THE 50S TO LOWER 60S. .LONG TERM...SATURDAY THROUGH WEDNESDAY ISSUED AT 350 AM MDT THU JUN 25 2015 WESTERN NOAM RIDGE WILL PREVAIL IN THE LONG TERM PERIOD AS THE WESTERN PAC TROUGH DIGS SE...SPURRING HEIGHT RISES OVER THE WESTERN CONUS. THIS WILL SUPPORT DRY AND WARMER WEATHER OVER THE REGION THROUGH MOST OF THE PERIOD. RIDGE TOPPING IMPULSES WILL LIKELY BREAK THE RIDGE DOWN FAIRLY QUICKLY BY THE MIDDLE TO END OF NEXT WEEK AS ACTIVE NORTHERN PAC FLOW CONTINUES. HENCE...PRECIP CHANCES ALBEIT SLIGHT...RETURN TO THE FORECAST TOWARD THE END OF THE PERIOD. TEMPS ARE EXPECTED TO BE SEASONAL TO SLIGHTLY ABOVE SEASONAL NORMS THROUGH THE PERIOD. && .AVIATION...FOR THE 12Z TAFS THROUGH 12Z FRIDAY MORNING ISSUED AT 350 AM MDT THU JUN 25 2015 WDSPRD CONVECTION IS EXPECTED TO CONTINUE ACROSS SOUTHERN SD AND RE-DEVELOP ACROSS NERN WY BY MID MORNING AND SPREAD EWD INTO WRN SD...PRODUCING RATHER WDSPRD MVFR/IFR CONDITIONS. CONDITIONS WILL THEN IMPROVE FROM WEST TO EAST LATE THIS AFTN/EVE AS PCPN DECREASES. && .UNR WATCHES/WARNINGS/ADVISORIES... SD...FLOOD WATCH THROUGH THIS EVENING FOR SDZ024>031-041-042-072>074. WY...FLOOD WATCH THROUGH THIS EVENING FOR WYZ057-058. && SHORT TERM...15 LONG TERM...JC AVIATION...JC
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RAPID CITY SD 316 PM MDT WED JUN 24 2015 SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058- 071-251300- HARDING-PERKINS-BUTTE-NORTHERN MEADE CO PLAINS-ZIEBACH- NORTHERN BLACK HILLS-NORTHERN FOOT HILLS-RAPID CITY- SOUTHERN FOOT HILLS-CENTRAL BLACK HILLS-SOUTHERN BLACK HILLS- CUSTER CO PLAINS-PENNINGTON CO PLAINS-HAAKON-FALL RIVER-SHANNON- JACKSON-BENNETT-MELLETTE-TODD-TRIPP-STURGIS/PIEDMONT FOOT HILLS- SOUTHERN MEADE CO PLAINS-HERMOSA FOOT HILLS-NORTHERN CAMPBELL- SOUTHERN CAMPBELL-WESTERN CROOK-WYOMING BLACK HILLS-WESTON- NORTHEASTERN CROOK- 316 PM MDT WED JUN 24 2015 ...FLOOD WATCH FOR THE BLACK HILLS AREA FROM LATE TONIGHT THROUGH THURSDAY EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND NORTHEASTERN WYOMING. .DAY ONE...THIS AFTERNOON AND TONIGHT THERE IS STILL A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER MUCH OF THE AREA THROUGH TONIGHT. LARGE HAIL AND DAMAGING WIND GUSTS WILL BE POSSIBLE WITH THESE STORMS. STORMS WILL INCREASE IN COVERAGE TONIGHT...ESPECIALLY AFTER MIDNIGHT...CONTINUING INTO THURSDAY. AREAS OF MODERATE TO HEAVY RAINFALL ARE LIKELY...ESPECIALLY ACROSS THE BLACK HILLS AREA. THE ADDITIONAL RAIN...COMBINED WITH ALREADY SATURATED GROUND AND MANY CREEKS AND STREAMS RUNNING HIGH FROM PREVIOUS RAINFALL...MAY RESULT IN FLOODING. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY ADDITIONAL WEATHER DISTURBANCES WILL BRING CHANCES FOR THUNDERSTORMS THROUGH FRIDAY...WITH STRONGER STORMS POSSIBLE AT TIMES. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER NORTHEASTERN WYOMING AND SOUTHWESTERN SOUTH DAKOTA ON THURSDAY. LARGE HAIL AND STRONG WIND GUSTS WILL BE THE MAIN THREATS FROM ANY SEVERE STORMS. AREAS OF MODERATE TO HEAVY RAINFALL ARE LIKELY ON THURSDAY... ESPECIALLY ACROSS THE BLACK HILLS AREA...WHICH MAY RESULT IN ADDITIONAL FLOODING OF RIVERS...CREEKS...AND ROADS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED LATE TODAY INTO TONIGHT. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES... OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
111 AM MDT THU JUN 25 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0110 AM HAIL 8 E PUMPKIN BUTTES 43.75N 105.73W
06/25/2015 E2.00 INCH CAMPBELL WY TRAINED SPOTTER
CRACKED WINDOWS FROM HAIL
&&
JCPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
230 AM MDT THU JUN 25 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0217 AM HAIL 19 SE WRIGHT 43.54N 105.27W
06/25/2015 E1.00 INCH CAMPBELL WY TRAINED SPOTTER
&&
JCSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RAPID CITY SD 254 AM MDT THU JUN 25 2015 SDZ027-029-250930- SOUTHERN BLACK HILLS SD-SOUTHERN FOOT HILLS SD- 254 AM MDT THU JUN 25 2015 ...STRONG THUNDERSTORM OVER NORTHWESTERN FALL RIVER AND SOUTHWESTERN CUSTER COUNTIES... AT 253 AM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 9 MILES SOUTHEAST OF DEWEY...OR 12 MILES NORTH OF EDGEMONT...MOVING EAST AT 30 MPH. NICKEL SIZE HAIL WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... ARGYLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... HEAVY RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4342 10397 4356 10390 4353 10354 4330 10365 TIME...MOT...LOC 0853Z 281DEG 26KT 4348 10386 JC
The Rapid City radar (KUDX), 170 km away, was scanning. The volume nearest the first event began at 11:00 UTC.
1 flash flood, 1 flood. Local standard time, as filed.
Runoff from heavy rain flooded and washed out several roads. Hay Creek flooded Dewey Road between Highway 85 and the South Dakota border. Lynch Road near the AU7 Ranch was washed out. Spring Creek washed out a section of Spring Creek Road.
Runoff from heavy rain flooded and washed out several roads.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2015Every state in 2015This day in weather historyWarnings in Wyoming, June 2015
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: 590932, 590934.