Over five inches of rain fell in less than five hours on the north side of Gillette. Runoff overwhelmed drainage systems and flooded several roads near the Gillette-Campbell County Airport.
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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.
Over five inches of rain fell in less than five hours on the north side of Gillette. Runoff overwhelmed drainage systems and flooded several roads near the Gillette-Campbell County Airport.
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 May 24, 1:25 PM MST, 2 hours 15 minutes earlier.
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY NATIONAL WEATHER SERVICE RAPID CITY SD 225 PM MDT SAT MAY 24 2014 .SHORT TERM...THIS EVENING THROUGH SUNDAY NIGHT ISSUED AT 223 PM MDT SAT MAY 24 2014 WATER VAPOR IMAGERY SHOWS UPPER LOW CONTINUING TO SPIN ACROSS THE SWRN CONUS...WITH SW FLOW ALOFT CONTINUING ACROSS THE REGION. SEVERAL EMBEDDED WAVES ARE PROVIDING ADDITIONAL FORCING. SURFACE ANALYSIS SHOWS LOW PRESSURE DRIFTING ACROSS ERN MT TO NRN WY. DEEP SRLY FLOW CONTINUES OVER THE CWA WITH DEWPOINTS IN THE 50 TO LOWER 60S. LITTLE CIN AND WEAK TO MODERATE INSTABILITY HAVE HELPED CONVECTION KICK OFF EARLY TODAY. STORMS ARE AGAIN ANCHORING OVER THE NRN BLKHLS...WITH WITH VERY WEAK STEERING CURRENTS AND LITTLE SHEAR...STORMS ARE BELOW SEVERE LIMITS BUT REDEVELOPING OVER THE SAME LOCATIONS. RAINFALL RATES HAVE BEEN LOW ENOUGH TO KEEP FLOODING CONCERNS AT BAY SO FAR. PRECIP WILL MOSTLY DISSIPATE THIS EVENING WITH LINGERING SHOWERS POSSIBLE LATE TONIGHT INTO EARLY SUNDAY MORNING. ANOTHER SIMILAR DAY IS EXPECTED TOMORROW WITH LITTLE CIN AND WEAK TO MODERATE CAPE. SHEAR WILL BE VERY WEAK ALONG WITH STEERING CURRENTS...SO LOCALLY HEAVY RAINFALL WILL AGAIN BE A POSSIBILITY. PRECIP WILL DECREASE SUNDAY EVENING. && .LONG TERM...MONDAY THROUGH SATURDAY ISSUED AT 223 PM MDT SAT MAY 24 2014 WEAK UPPER RIDGE AND SOUTHERN PLAINS CUT-OFF LOW WILL SLOWLY SHIFT EAST MONDAY INTO TUESDAY. UPPER LEVELS TRANSITIONS TO SOUTHWEST FLOW FOR THE SECOND HALF OF THE WEEK AS THE NEXT TROUGH ENTERS THE PACIFIC NORTHWEST. LOW CHANCES FOR SHOWERS AND THUNDERSTORMS WILL CONTINUE ON MONDAY AND TUESDAY. CHANCES FOR PCPN WILL THEN INCREASE FOR THE SECOND HALF OF THE WEEK AS VARIOUS SHORTWAVES LIFT OVER THE REGION AHEAD OF THE WESTERN TROF. TEMPERATURES WILL BE A BIT ABOVE AVERAGE THROUGH MUCH OF THE PERIOD. && .AVIATION...FOR THE 18Z TAFS THROUGH 18Z SUNDAY ISSUED AT 223 PM MDT SAT MAY 24 2014 SCT SHRA/TSRA WILL DEVELOP THIS AFTERNOON INTO THIS EVE...WITH ISOLD SHRA/TSRA POSSIBLY LINGERING OVERNIGHT INTO EARLY SUNDAY. MVFR/IFR VIS POSSIBLE IN HEAVIER PRECIP. OTHERWISE...MAINLY VFR CONDITIONS ARE EXPECTED. && .UNR WATCHES/WARNINGS/ADVISORIES... SD...NONE. WY...NONE. && SHORT TERM...13 LONG TERM...77 AVIATION...77
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RAPID CITY SD 520 AM MDT SAT MAY 24 2014 SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058- 071-251300- 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- 520 AM MDT (620 AM CDT) SAT MAY 24 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND NORTHEASTERN WYOMING. .DAY ONE...TODAY AND TONIGHT AREAS OF FOG HAVE FORMED ACROSS SOUTHWESTERN SOUTH DAKOTA. VISIBILITY MAY BE AS LOW AS 1/2 MILE...ESPECIALLY ALONG THE FOOTHILLS FROM RAPID CITY TO HOT SPRINGS AND THE SOUTHERN BLACK HILLS. THE FOG WILL ERODE BY MID MORNING. SCATTERED THUNDERSTORMS WILL DEVELOP DURING THE LATE MORNING AND CONTINUE OVERNIGHT. WHILE SEVERE STORMS ARE NOT EXPECTED...SOME STRONG STORMS MAY CONTAIN SMALL HAIL...AND BECAUSE THEY WILL MOVE SLOWLY...COULD PRODUCE LOCALIZED HEAVY RAIN. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THERE IS A DAILY CHANCE OF THUNDERSTORMS...BUT SEVERE STORMS ARE NOT EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TODAY. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES... OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RAPID CITY SD 1112 AM MDT SAT MAY 24 2014 SDZ024-025-072-241800- NORTHERN BLACK HILLS SD-NORTHERN FOOT HILLS SD-STURGIS/PIEDMONT FOOT HILLS SD- 1112 AM MDT SAT MAY 24 2014 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN LAWRENCE AND SOUTHWESTERN MEADE COUNTIES UNTIL NOON MDT... AT 1109 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR GALENA...OR 7 MILES SOUTHWEST OF DOWNTOWN STURGIS...MOVING EAST AT 5 MPH. HAIL UP TO THE SIZE OF NICKELS IS EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... DOWNTOWN STURGIS... TILFORD... THIS INCLUDES INTERSTATE 90 BETWEEN SOUTH DAKOTA MILE MARKERS 28 AND 41... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. && LAT...LON 4447 10352 4430 10340 4424 10362 4438 10371 TIME...MOT...LOC 1712Z 252DEG 4KT 4433 10359 CALDERON
The Rapid City radar (KUDX), 217 km away, was scanning. The volume nearest the first event began at 22:40 UTC.
1 heavy rain, 1 flash flood. Local standard time, as filed.
A record daily rainfall of 5.21 inches was set at the Gillette-Campbell County Airport. The period of record for this site is 1998 through 2014.
WY Highway 59 north of Gillette was flooded in two locations. The Gillette-Campbell County Airport was closed when Airport Road became flooded. A few cars were damaged while trying to drive through floodwaters over Foothills Boulevard.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2014Every state in 2014This day in weather historyWarnings in Wyoming, May 2014
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: 516014, 516009.