A thunderstorm struck the Carbondale area and produced heavy rain and hail.
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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.
A thunderstorm struck the Carbondale area and produced heavy rain and hail.
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 May 29, 3:40 AM MST, 6 hours 5 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND JUNCTION CO 440 AM MDT TUE MAY 29 2007 .SHORT TERM (TODAY THROUGH WEDNESDAY NIGHT)... DISORGANIZED BAROCLINIC ZONE HAS BEEN MOVING ACROSS NWRN COLORADO THIS MORNING. SHOWERS HAVE BEEN NUMEROUS WITHIN THE BAROCLINIC CLOUD BUT PRODUCING MORE GUSTY WINDS THAN RAINFALL. AMOUNTS HAVE BEEN LESS THAN A TENTH OF INCH...NOT HIGH ENOUGH TO BE CONSIDERED WETTING RAINS. DIGGING ENERGY OVER NRN UTAH WILL INCREASE DYNAMICAL LIFT AND ENHANCE THE BAROCLINIC CLOUD. AT THE SAME TIME... THIS SECONDARY WAVE WILL ADVECT DRIER AIR SO THE INCREASE OF SHOWERS WILL BE SHORT LIVED BEFORE CONVECTIVE POTENTIAL DECREASES. THE BEST THREAT OF SHOWERS WILL BE OVER THE NWRN COLORADO MOUNTAINS. FARTHER SOUTH...COOL FRONT WILL SAG SOUTH MOVES ACROSS SERN UTAH AND SWRN COLORADO THIS AFTERNOON. THE FRONT WILL BE LOSING UPPER SUPPORT AS IT REACHES THE SRN MOUNTAINS...BUT ISOLATED AFTERNOON CONVECTION WILL FORM OVER THE SAN JUAN MOUNTAINS. BUT THE MAIN CONCERN WILL BE THE DRY GUSTY WINDS ALONG THE FRONT WHERE LOCAL GUSTS TO 25 KNOTS WILL BE COMMON. LOCALIZED LOW END RED FLAG CRITERIA WILL OCCUR OVER THE VALLEYS OF SERN UTAH AND SWRN COLORADO. WEDNESDAY...CLOSED NRN PLAINS TROUGH WILL CONTINUE TO AFFECT THE FORECAST AREA. BUT DRIER WILL AIR WILL SPREAD ACROSS THE ENTIRE FORECAST AREA. NORTHWEST OROGRAPHIC FLOW WILL KEEP A BROKEN CLOUD DECK OVER THE PARK AND GORE RANGES WITH WANING DYNAMICAL SUPPORT...WARMING TEMPERATURES ABOVE 600 MB WILL CAP CONVECTIVE POTENTIAL AND ONLY EXPECT SPOTTY SHOWERS. THESE SHOWERS WILL END EARLY WEDNESDAY EVENING WITH CLEARING UNDERWAY. FOR THE REMAINDER OF THE FORECAST AREA...MOSTLY CLEAR CONDITIONS WILL PREVAIL BUT DAYTIME TEMPERATURES WILL BE NEARLY THE SAME AS THIS AFTERNOON. .LONG TERM (THURSDAY THROUGH TUESDAY)...A DEEP UPPER LOW WILL BE LOCATED OVER SOUTH DAKOTA THURSDAY BRINGING A NORTHWESTERLY FLOW AND ISOLATED THUNDERSTORMS MAINLY TO THE NORTHERN MTNS. THIS SYSTEM WILL SLOWLY LIFT NORTHEAST FRIDAY AS A RIDGE OF HIGH PRESSURE BUILDS AND AMPLIFIES OVER THE GREAT BASIN. A FEW WEAK WAVES WILL DROP DOWN THE FRONT RANGE BUT SHOULD HAVE LITTLE IMPACT ON WESTERN CO AND EASTERN UT WEATHER. KEPT ONLY LIGHTEST OF POP OVER THE HIGHEST ELEVATIONS DURING THE AFTERNOONS AND EARLY EVENING. MODEL GUIDANCE TEMPS APPEARED REASONABLE. AFTER A BIT OF A COOL OFF THURSDAY...TEMPS WILL WARM BACK UP TO NORMAL AND ABOVE NORMAL BY SATURDAY. && .AVIATION... MAINLY VFR CONDITIONS TODAY AND TONIGHT...BUT ISOLATED THUNDERSTORMS WILL DEVELOP OVER THE WESTERN COLORADO MOUNTAINS. LOCAL WIND GUSTS TO 30 KNOTS WILL OCCUR WITH SHOWERS AND ACROSS THE SRN VALLEYS AFTER 18Z. WIND POTENTIAL QUICKLY DIMINISHES AFTER 02Z. LOCAL MVFR CEILINGS AND MOUNTAIN OBSCURATION WILL OCCUR FROM SHOWERS. .GJT WATCHES/WARNINGS/ADVISORIES... .CO...NONE. .UT...NONE. PF/MC/CC/JAD
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND JUNCTION CO 600 AM MDT TUE MAY 29 2007 COZ001>014-017>023-UTZ022>025-027>029-301200- 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- 600 AM MDT TUE MAY 29 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN COLORADO. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS WILL FORM OVER THE MOUNTAINS OF NORTHWEST COLORADO THIS AFTERNOON AND EARLY EVENING. THE SAN JUAN MOUNTAINS WILL HAVE ISOLATED AFTERNOON THUNDERSTORMS. WIND GUSTS TO 35 MPH... SMALL HAIL...AND OCCASIONAL LIGHTNING WILL BE POSSIBLE WITH THUNDERSTORMS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED THROUGH THE PERIOD. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY AND TONIGHT.
The Grand Junction radar (KGJX), 93 km away, was scanning. The volume nearest the first event began at 16:47 UTC.
1 heavy rain, 1 hail. Local standard time, as filed.
A heavy rain producing thunderstorm caused minor street flooding in Carbondale. Additionally, a significant amount of hail accompanied the rain.
Hail stones up to nickel-size in diameter defoliated many trees in town and decimated gardens. Accumulations of hail were up to 2 inches deep.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2007Every state in 2007This day in weather historyWarnings in Colorado, May 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: 39219, 39220.