Flash Flood, Eagle
- When
- July 30, 5:15 PM MST to 9:00 PM MST
- Where
- Eagle County, Basalt
- Property damage
- $200,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 39.628, -106.695 (the zone’s center; the record gives no point)
Flash Flood in Colorado, July 30, 2006
Thunderstorms produced heavy rain which breached an old irrigation ditch and also resulted in raging rivers of water and boulders up to two feet in diameter to flow down stream beds. In the Elk Run subdivision, streets were flooded and basements were filled with muddy water up to four feet deep.
Where it happened
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $200,000
- Crop damage
- None recorded
- Events
- 1
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.
What happened
The episode as NWS GJT wrote it up.
Thunderstorms produced heavy rain which breached an old irrigation ditch and also resulted in raging rivers of water and boulders up to two feet in diameter to flow down stream beds. In the Elk Run subdivision, streets were flooded and basements were filled with muddy water up to four feet deep. Landscaping and fencing were destroyed on numerous properties, including the cemetery and the Roaring Fork Golf Course. An enormous amount of mud and large rocks remained on properties after the rainfall receded.
What forecasters said that day
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 30, 1:30 PM MST, 3 hours 45 minutes earlier.
Area forecast discussion, Jul 30, 1:30 PM MST, 3 hours 45 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND JUNCTION CO 230 PM MDT SUN JUL 30 2006 .SHORT TERM (TONIGHT THROUGH TUESDAY)... EVEN WITH AN ABUNDANCE OF MOISTURE TODAY REQUIRED A HIGH TEMP TO REACH OUR CONVECTION THRESHOLD SO ACTIVITY IS STARTING AN HOUR OR TWO LATE TODAY. MAIN CONCERN FOR LATE AFTERNOON AND EARLY EVENING WILL BE THE LOW IN NM KEEPING EAST FLOW AND PUSHING THE FOUR CORNERS STORMS TO THE WEST. INTERESTING PERIOD AHEAD WITH TIGHT CIRCULATION IN CENTRAL NEW MEXICO AND TROUGH MOVING IN FROM THE WEST COAST. THE NM SYSTEM IS SLIDING TO THE SOUTHEAST THIS AFTERNOON PER SATELLITE BUT WRF MOVES THIS TO EAST CENTRAL NM BY MORNING AND THEN DESOLVES IT. THE WEST COAST SYSTEM IS DISAPPOINTING COMPARED TO WHAT I SAW WHEN I LEFT LAST WEEK. IT HAS SLOWED AND FILLED...NOW PROGGED TO MOVE ACROSS MONDAY NIGHT. THE REALIZED OUTCOME OF ALL THIS WILL BE LOTS OF CONVECTION IN THE FOUR CORNERS AND SAN JUANS THROUGH THE PERIOD AND INCREASE IN WEATHER ELSEWHERE LATE MONDAY AND TUESDAY. SOME LOCALLY HEAVY RAINFALL POSSIBLE AND WILL NEED TO WATCH FOR ANY TRAINING IN THE FOUR CORNERS WHICH MAY CAUSE SOME FLOODING. OTHERWISE NORMAL CLIMATE...DIURNAL ACTIVITY UNDER MONSOON FLOW. CURRENT FORECAST HAS GOOD HANDLE ON THINGS SO ONLY MINOR ADJUSTMENTS MADE. DJC/21 .LONG-TERM (TUESDAY NIGHT THROUGH SUNDAY)... A DRIER AIR MASS BEHIND THE TROUGH ON MON/TUE WILL RESULT IN A DECREASE IN CONVECTIVE ACTIVITY THROUGH THIS PERIOD AS COMPARED TO EARLY IN THE WEEK. HOWEVER ENOUGH MOISTURE WILL REMAIN FOR THE TYPICAL LATE-DAY THUNDERSTORM PATTERN...WHICH WILL BE MAINLY OVER THE SOUTH. LATER IN THE WEEK...THE MODELS AGREE THAT THE PATTERN WILL AGAIN BECOME MORE FAVORABLE FOR A RETURN TO A JUICIER FLOW. BUT THE 12Z GFS IS A LITTLE DRIER AS IT KEEPS THE FLOW MORE ZONAL THAN PREVIOUS RUNS. HOWEVER...HAVE NOT CHANGED THE FORECAST OF CHANCE/SLIGHT CHANCE WITH THE FAVORED AREA THE SOUTHERN MOUNTAINS. TEMPS WILL WARM TO AROUND NORMAL BY THU. && .GJT WATCHES/WARNINGS/ADVISORIES... .CO...NONE. .UT...NONE. && DJC/EH
Hazardous weather outlook, Jul 30, 5:00 AM MST, 12 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND JUNCTION CO 600 AM MDT SUN JUL 30 2006 COZ001>014-017>023-UTZ022>025-027>029-311200- 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 SUN JUL 30 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN COLORADO. .DAY ONE...TODAY AND TONIGHT SOUTHEAST UTAH...SOUTHWEST COLORADO AND THE MOUNTAIN AREAS OF WEST CENTRAL COLORADO WILL SEE SCATTERED SHOWERS AND THUNDERSTORMS... MAINLY THIS AFTERNOON AND EVENING. THE STRONGER STORMS WILL PRODUCE FREQUENT CLOUD TO GROUND LIGHTNING...HEAVY RAIN SHOWERS...SMALL HAIL AND STRONG GUSTY WINDS. ISOLATED THUNDERSTORMS CAN BE EXPECTED OVER NORTHEAST UTAH AND NORTHWEST COLORADO. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY MONDAY...EXPECT NUMEROUS THUNDERSTORMS IN THE MOUNTAINS WITH SCATTERED STORMS OVER THE LOWER VALLEYS. MANY STORMS WILL BE STRONG AND WILL PRODUCE HEAVY RAIN...HAIL...AND GUSTY WINDS. TUESDAY...DRIER WITH SCATTERED THUNDERSTORMS IN THE MOUNTAINS AND ISOLATED STORMS FOR VALLEY AREAS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT.
The radar
The Grand Junction radar (KGJX), 145 km away, was scanning. The volume nearest the first event began at 00:15 UTC.
Event by event
1 flash flood. Local standard time, as filed.
What these are
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Heat in Maryland, July 30, 2006
- Heat in Wisconsin, July 30 to 31, 2006
- Flash Flood in Utah, July 30, 2006
- Heat in Illinois, July 30 to 31, 2006
- Debris Flow in Colorado, July 30, 2006
- Lightning Strike in Arizona, July 30, 2006
- Damaging Wind in Wisconsin, July 30, 2006
- Damaging Winds in Mississippi, July 30, 2006
- Hail and Damaging Winds in Wisconsin, July 30, 2006
- Heat in Missouri, July 30 to 31, 2006
- Damaging Winds in Michigan, July 30, 2006
- Heat in Minnesota, July 30 to 31, 2006
More
Every storm in Colorado in 2006Every state in 2006This day in weather historyWarnings in Colorado, July 2006
Sources
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: 5524308.