Severe thunderstorms struck portions of northwest Colorado.
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 GJT wrote it up.
Severe thunderstorms struck portions of northwest Colorado.
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 14, 3:30 AM MST, 1 hour 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND JUNCTION CO 430 AM MDT SAT JUL 14 2007 .SHORT TERM (TODAY THROUGH SUNDAY NIGHT)... PERSISTENT PATTERN WITH AMPLIFIED RIDGE CENTERED OVER THE FOUR CORNER STATES WILL CONTINUE THROUGH THE SHORT TERM PERIOD. SHORT WAVE THAT WENT THROUGH NW COLORADO OVERNIGHT WILL MOVE SOUTH OF THE AREA LATER THIS MORNING. CONVECTION ASSOCIATED WITH THIS WAVE QUICKLY DISSIPATED AFTER MIDNIGHT...LEAVING BEHIND SOME DEBRIS CLOUD OVER WRN COLORADO. WEAK IMPULSES WILL CONTINUE TO ROTATE AROUND THE HIGH CORE AND MAY TRIGGER ORGANIZED CONVECTION. BUT DRIER AIR ALOFT OVER UTAH WILL SPREAD ACROSS WRN COLORADO TODAY... AND THEREFORE UPDRAFTS WILL HAVE A TOUGHER TIME TO FORM UNTIL LATE AFTERNOON WHEN LAPSE RATES BECOME STEEP. MOST CONVECTION WILL BE CONFINED TO THE HIGH TERRAIN BUT A FEW STORMS WILL DRIFT SOUTHWARD OFF THE MOUNTAINS (LIKE LA PLATA AND ARCHULETA COUNTIES). WITH LESS PRECIPITABLE WATER...STORMS WILL BE SHORTER LIVED AND WILL NOT PRODUCE MUCH IN THE WAY OF RAIN. ALL AREAS WILL BE WARMER AS THE WARM 18-20C TEMPS AT 700 MB TRANSLATES TO THE SURFACE. THE LOWER VALLEYS WILL BREAK THE CENTURY MARK...WITH 90S COMMONPLACE IN THE HIGH VALLEY...AND UPPER 70S AND 80S IN THE MOUNTAINS. .LONG TERM...MONDAY THROUGH SATURDAY... MONDAY HIGH PRESSURE WILL BE NEAR THE 4 CORNERS THEN SHIFT VERY SLOWLY EASTWARD THROUGH THE REST OF THE WEEK AS A LONG WAVE TROF OFF THE COAST PUSHES INLAND. THIS WILL TRANSITION THE FLOW ALOFT FROM THE NORTHWEST TO THE SOUTHWEST BY TUESDAY. THIS OPENS THE DOOR TO A MORE DIRECT APPROACH FOR SOUTHERLY MOISTURE IN A MORE MONSOON-LIKE PATTERN. PRECIPITABLE WATER VALUES INCREASE TO AROUND ONE INCH OVER THE SOUTH BY TUE...ACCORDING TO THE GFS. THEN REMAIN AT AN INCH OR BETTER THROUGH THE WEEK. SURFACE DEWPOINTS ALSO INCREASE IN THE 40S TO AROUND 50 SO THAT EVEN VALLEY LOCATIONS WILL HAVE A CHANCE AT WETTING RAINS. STILL A LITTLE HESITANT TO RAISE POPS UNTIL MOISTURE PLUME IS SEEN DEVELOPING OVER MEXICO. RIGHT NOW THE DIURNAL PATTERN FOR CHANCE MOUNTAIN THUNDERSTORMS SEEMS REASONABLE. TEMPS WILL RUN JUST A LITTLE ABOVE NORMAL ESPECIALLY AS CLOUD COVER INCREASES MID WEEK. && .AVIATION... VFR CONDITIONS WILL PREVAIL TODAY AND TONIGHT. THE PRIMARY THREAT WILL BE ISOLATED AFTERNOON THUNDERSTORMS THAT FORM OVER THE MOUNTAINS...ESPECIALLY THE UINTAS OF EASTERN UTAH...AND THE ELK AND SAN JUAN MOUNTAINS IN WEST CENTRAL AND SOUTHWEST COLORADO. THESE STORMS WILL GENERATE ERRATIC WINDS GUSTS AND POSSIBLY IMPACT THE MOUNTAIN AIRPORTS...INCLUDING KEGE...KASE...KGUC...AND KDRO. && .GJT WATCHES/WARNINGS/ADVISORIES... .CO...NONE. .UT...NONE. SHORT TERM...PF LONG TERM...MC AVIATION...PF
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND JUNCTION CO 600 AM MDT SAT JUL 14 2007 COZ001>014-017>023-UTZ022>025-027>029-151200- 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 SAT JUL 14 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN COLORADO. .DAY ONE...TODAY AND TONIGHT ISOLATED SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER THE HIGHER TERRAIN IN THE AFTERNOON...A FEW OF THESE STORMS WILL DRIFT OVER THE VALLEYS LATE AFTERNOON AND EARLY EVENING. LIGHTNING AND GUSTY WINDS WILL ACCOMPANY THESE STORMS. STORMS WILL DISSIPATE AFTER SUNSET. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY ISOLATED TO SCATTERED THUNDERSTORMS WILL OCCUR EACH AFTERNOON AND EVENING OVER THE MOUNTAINS...ESPECIALLY NEAR THE CONTINENTAL DIVIDE. A FEW OF THESE STORMS WILL DRIFT OFF THE MOUNTAINS AND IMPACT VALLEYS WITH STRONG GUSTY WINDS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT.
The Grand Junction radar (KGJX), 172 km away, was scanning. The volume nearest the first event began at 11:58 UTC.
3 thunderstorm wind. Local standard time, as filed.
Personnel at a Craig radio station reported numerous large branches broken from trees, with several trees broken in half. Hotel signs were damaged and some were shattered.
A thunderstorm wind gust tore some siding from houses in Meeker.
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, July 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: 49707, 46510, 49417.