Heavy rainfall caused a mudslide.
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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 GJT wrote it up.
Heavy rainfall caused a mudslide.
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 Grand Junction, CO wrote its last area forecast discussion before the first event at Jul 24, 1:25 PM MST, 2 hours 45 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND JUNCTION CO 225 PM MDT THU JUL 24 2008 .SHORT TERM...TONIGHT THROUGH SATURDAY... SEVERAL THINGS HAPPENING WITH THE MONSOONAL PLUME TODAY AND OVER THE NEXT 48 HOURS. FIRST A DRY SLOT IN THE WESTERLY FLOW ALOFT OVER SOUTHERN IDAHO AND WYOMING ARE CONTINUING TO SHEAR THE NORTHERN EXTENT OF THE PLUME FURTHER EAST. SO GRADUALLY THE MOISTURE AXIS IS BECOMING WEST TO EAST OVER THE FORECAST AREA. OVER WESTERN NM AND EASTERN AZ A SMALL EASTERLY WAVE IS PUSHING THE MOISTURE FURTHER NORTH AND WEST...WITH DEFORMATION STRETCHING THE MOISTURE ALONG AND AXIS EXTENDING FROM SW AZ TO NE CO. ALL THIS STUFF APPEARS TO BE THINNING OUT THE MOISTURE SOMEWHAT...RESULTING IN A SMALL DOWNTURN IN CONVECTIVE DEVELOPMENT TODAY AND THIS EVENING. THE REMAINING PRECIPITABLE WATER IS STILL ENOUGH TO KICK OF SCATTERED TO NUMEROUS THUNDERSTORMS THROUGH THIS EVENING OVER THE SAN JUAN MOUNTAINS...WITH SCATTERED TSTMS EXPECTED OVER THE CENTRAL CO MTS. ISOLD TO WIDELY SCATTERED THUNDERSTORMS WILL FORM ELSEWHERE. FRIDAY AND FRIDAY NIGHT...THE GRADUAL DOWNTURN WILL CONTINUE AND MOISTURE ERODES WITH TIME AND DRIER AIR SLOWLY MOVES IN FROM THE WEST...ESPECIALLY OVER THE NORTHERN HALF OF THE AREA. FRIDAY SHOULD BE THE DRIEST AND HOTTEST DAY THIS WEEK...WITH THE EXCEPTION BEING SOUTH OF ABOUT MONTROSE AND THE ABAJO MTS...WHERE HIGH CLOUDS AHEAD OF THE REMNANTS OF HURRICANE DOLLY BEGIN SPREADING OVER THE AREA. ON SATURDAY...MORE CLOUDINESS FROM DOLLY WILL SPREAD NORTH AND COVER THE SOUTHERN HALF OF THE CWA. MAX TEMPS SHOULD DECREASE AT LEAST 5 DEGREES FROM THE CLOUD COVER AND THE CHANCE OF RAIN WILL INCREASE ACROSS THE BOARD. .LONG TERM...SATURDAY NIGHT THROUGH THURSDAY... SATURDAY NIGHT AND SUNDAY: MODEL TIMING OF BEST MOISTURE HAS FLUCTUATED SOMEWHAT FROM RUN TO RUN. TODAYS 12Z RUNS INDICATE THAT REMNANTS OF DOLLY WILL HAVE ALREADY MADE IT OVER THE SOUTHERN PORTION OF THE FORECAST AREA BY THE BEGINNING OF THE PERIOD. THIS IS A LITTLE FASTER THAN YESTERDAYS 12Z SOLUTIONS. IN SUPPORT OF THIS IDEA... SATELLITE IMAGES SHOW THAT SOME OF DOLLYS MOISTURE HAS ALREADY MADE IT INTO EAST CENTRAL NM. AS A RESULT...EXPECT A RELATIVELY ACTIVE NIGHT ON SATURDAY DUE TO THIS SURGE. SUN SHOULD SEE ANOTHER GOOD ROUND OF SHOWERS AND THUNDERSTORMS DEVELOPING IN THE AFTERNOON AS ANY MOISTURE OVER THE AREA WILL BE SLOW TO ERODE IN THE LIGHT FLOW UNDER PERSISTENT HIGH PRESSURE. MONDAY-THURSDAY: IN GENERAL...WILL CONTINUE TO BROAD BRUSH CHANCE POPS FOR THE MOUNTAINS AND SOUTH...WITH SLIGHT CHANCE ELSEWHERE FOR THE REMAINDER OF THE LONG TERM PERIOD. MODELS DO HINT AT SOME DRYING..ESPECIALLY MIDWEEK AND BEYOND OVER THE NORTH. HOWEVER THE HIGH PRESSURE RIDGE BUILDS OVER THE FORECAST AREA BY WED. FEEL THAT ENOUGH MOISTURE WILL REMAIN TRAPPED UNDER THE HIGH...AND WILL CONTINUE TO ROTATE AROUND THE CENTER AND FEED MAINLY DIURNAL SHOWERS AND THUNDERSTORMS. AS PER PREVIOUS DISCUSSIONS...TEMPS WILL CONTINUE TO BE HIGHLY DEPENDENT ON CLOUD COVER AND PRECIPITATION. && .AVIATION...SCATTERED TO NUMEROUS STORMS WILL CONTINUE THROUGH THIS EVENING...GENERALLY SOUTH OF A LINE FROM VAIL PASS TO KRIL TO KCNY... WITH ISOLATED COVERAGE TO THE NORTH AND WEST. STORMS WILL GRADUALLY DIMINISH AFTER SUNSET...WITH A ISOLATED SHOWERS OR THUNDERSTORMS CONTINUING ACROSS THE SOUTH LATE TONIGHT. SOME THUNDERSTORMS WILL PRODUCE LOCALLY HEAVY RAINFALL...RESULTING IN MOUNTAIN OBSCURATION AND LOCALIZED MVFR CIGS AND MVFR TO IFR VSBYS. && .GJT WATCHES/WARNINGS/ADVISORIES... .CO...NONE. .UT...NONE. SHORT TERM.....CJC LONG TERM......EH AVIATION.......CJC
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND JUNCTION CO 545 AM MDT THU JUL 24 2008 COZ001>014-017>023-UTZ022>025-027>029-251200- ANIMAS RIVER BASIN-ARCHES/GRAND FLAT-CANYONLANDS/NATURAL BRIDGES- CENTRAL COLORADO RIVER BASIN- CENTRAL GUNNISON AND UNCOMPAHGRE RIVER BASIN- CENTRAL YAMPA RIVER BASIN-DEBEQUE TO SILT CORRIDOR- EASTERN UINTA BASIN-EASTERN UINTA MOUNTAINS- ELKHEAD AND PARK MOUNTAINS-FLAT TOPS- FOUR CORNERS/UPPER DOLORES RIVER- GORE AND ELK MOUNTAINS/CENTRAL MOUNTAINS-GRAND AND BATTLEMENT MESAS- GRAND VALLEY-LA SAL AND ABAJO MOUNTAINS-LOWER YAMPA RIVER BASIN- NORTHWEST SAN JUAN MOUNTAINS-PARADOX VALLEY/LOWER DOLORES RIVER- ROAN AND TAVAPUTS PLATEAUS-SAN JUAN RIVER BASIN-SOUTHEAST UTAH- SOUTHWEST SAN JUAN MOUNTAINS-TAVAPUTS PLATEAU- UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE-UPPER GUNNISON RIVER VALLEY- UPPER YAMPA RIVER BASIN-WEST ELK AND SAWATCH MOUNTAINS- 545 AM MDT THU JUL 24 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN COLORADO. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS WILL DEVELOP THIS AFTERNOON...ESPECIALLY OVER SOUTHWEST COLORADO AND THE CENTRAL MOUNTAINS OF WESTERN COLORADO WHERE STORMS WILL BE MORE NUMEROUS. LOCALLY HEAVY RAIN WILL OCCUR WITH THE STRONGEST STORMS AND ALSO PRODUCE SMALL HAIL AND VERY GUSTY WINDS. HEAVY SHOWERS MAY CAUSE RAPID RUNOFF WITH SMALL CREEKS AND STREAMS TO RUN HIGH AND CAUSE DEBRIS MUD FLOWS. SHOWERS AND THUNDERSTORMS WILL DECREASE AFTER SUNSET...BUT ISOLATED SHOWERS OR STORMS WILL LAST BEYOND MIDNIGHT. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A CHANCE OF AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS WILL OCCUR EACH DAY...WITH THE BEST CHANCE OVER SOUTHEAST UTAH AND SOUTHWEST COLORADO. LOCALLY HEAVY RAINFALL...GUSTY WINDS...AND SMALL HAIL WILL BE POSSIBLE WITH THE THUNDERSTORMS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED TODAY OR TONIGHT.
The national radar mosaic for the moment the first event began.
1 debris flow. Local standard time, as filed.
Heavy rain caused a mudslide near a residential area of Placerville.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2008Every state in 2008This day in weather historyWarnings in Colorado, July 2008
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: 121618.