An unusually strong storm system brought very strong winds to areas in the North Central Mountains, Front Range Foothills and Urban Corridor. Peak wind gusts ranged from 55 mph at Denver International Airport to 101 mph at Carter Lake.
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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 BOU wrote it up.
An unusually strong storm system brought very strong winds to areas in the North Central Mountains, Front Range Foothills and Urban Corridor. Peak wind gusts ranged from 55 mph at Denver International Airport to 101 mph at Carter Lake. Peak wind gusts included: 101 mph at Carter Lake, 92 mph at Boulder, 85 mph, 2 miles southwest of Boulder, 83 mph, 10 miles south of Boulder, and 76 mph at Mines Peak and Pinewood Lake.
Hundreds of trees were downed in Frisco and across much of Summit County, destroying cars, damaging homes and businesses, and causing scattered outages across the county. Approximately 700 acres of trees were downed across the county. High winds forced the closure of Mt. Evans Road and Trail Ridge Road. Several campgrounds had to be closed for tree removal. In addition to the wind, some areas in the mountains accumulated from 4 to 6 inches of snow.
Several trees were uprooted across the Urban Corridor. In Aurora, the driver of a car was injured when some building material blew off the Fitzsimmons Complex. The debris landed on the car, knocking the driver unconscious. The wind forced the cancellation of 60 flights at Denver International Airport. Xcel reported outages in Boulder, Denver, Lakewood, Longmont and Windsor.
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 Denver/Boulder, CO wrote its last area forecast discussion before the first event at Jun 6, 1:26 AM MST, 6 hours 49 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DENVER CO 226 AM MDT WED JUN 6 2007 .SHORT TERM...UNUSALLY STG UPPER LEVEL STORM SYSTEM FOR THIS TIME OF THE YEAR WILL MOVE ACROSS WYOMING LATER THIS AFTN THRU TONIGHT. AS THIS SYSTEM INTENSIFIES OVER WYOMING STG SFC LOW PRESSURE WILL DEVELOP FROM ERN WYOMING INTO ERN COLORADO. IN THE MTNS EXPECT PCPN TO INCREASE BY AFTN AS MOISTURE INCREASES AND DECENT QG ASCENT MOVES ACROSS. SNOW LEVELS WILL BE ABOVE 10000 FEET INITIALLY BUT WILL QUICKLY LOWER BY LATE AFTN AS COLDER AIR ALOFT MOVES ACROSS. EAST OF THE MTNS EXPECT GUSTY SWLY WINDS TO DEVELOP BY MIDDAY AND CONTINUE INTO THE EVENING HOURS DUE TO TIGHT SFC GRADIENT. WIND SPEEDS WILL BE IN THE 20 TO 35 MPH RANGE WITH SOME GUSTS TO 50 MPH POSSIBLE BY MID TO LATE AFTN INTO THE EARLY EVENING HOURS. DESPITE STG DOWNSLOPE COMPONENT AND LACK OF LOW LEVEL MOISTURE COULD SEE SOME ISOLD HIGH BASED TSTMS DUE TO LAPSE RATES AROUND 9 C/KM AND RATHER STG QG ASCENT IN PLACE. THESE STORMS WILL PRODUCE LITTLE RAINFALL HOWEVER WITH BNDRY LAYER WINDS IN THE 30-40 KT RANGE OUTFLOW WNDS FROM THE STORMS COULD EASILY PRODUCE WIND GUSTS OVER 60 MPH WHERE THEY DO FORM. MEANWHILE WITH STG SWLY LOW LEVEL FLOW TEMPS OVER NERN CO COULD REALLY WARM QUICKLY THUS GUIDANCE TEMPS APPEAR TO COOL SO WILL KEEP READINGS IN THE LOWER 80S ALONG THE FRONT RANGE WITH READINGS OVER THE NERN CORNER AROUND 90. FOR TONIGHT APPEARS A VERY LATE SEASON HIGH WIND EVENT WILL DEVELOP IN THE MTNS AND IN AND NEAR THE FOOTHILLS. CROSS-SECTIONS SHOW FAVORABLE STG MTN WAVE DEVELOPING OVERNIGHT WITH PRONOUNCED CRITICAL LAYER. MEANWHILE STG QG DOWNWARD DESCENT IS ALSO FCST TO DEVELOP OVERNIGHT AS WELL. COMPONENT ALONG WINDS ARE FCST TO BE AROUND 70 KTS BY 06Z AND THEN INCREASE TO NEAR 100 KTS BY 12Z. PERSONALLY I HAVE NOT SEE A SETUP LIKE THIS EVEN IN THE FAVORED WINTER MONTHS IN QUITE SOME TIME. IF WHAT THE WRF IS SHOWING IS CLOSE TO REALITY WE COULD SEE MAJOR HIGH WIND EVENT LATE TONIGHT THRU THE MID MORNING HOURS OVER THE HIGHER TERRAIN AND IN AND NEAR THE FOOTHILLS WITH WIND GUSTS NEARING 100 MPH. AS A RESULT WILL ISSUE A HIGH WIND WATCH FROM 06Z TONIGHT THRU 18Z THU. MEANWHILE IN THE MTNS DESPITE STG QG DESCENT DEVELOPING TONIGHT OROGRAPHICS WILL STILL BE STG SO COULD SEE SOME ACCUMULATING SNOWS ESPECIALLY ON WEST FACING SLOPES. WRF SHOWS MORE PCPN THAN THE GFS SO IM NOT SURE WHICH MODEL TO BELIEVE AT THIS POINT. IF HIGH WINDS MATERIALIZE TRAVEL CONDITIONS OVER THE HIGHER MTNS PASSES LATER TONIGHT MAY BECOME VERY DIFFICULT DUE TO COMBINATION OF SNOW AND WIND. .LONG TERM...FOR THURSDAY...A STRONG WEST TO NORTHWESTERLY FLOW WILL CONTINUE TO BRING LIGHT SNOW IN THE MOUNTAINS...WITH STRONG DOWNSLOPE WINDS IN THE FOOTHILLS. LATEST RUNS KEEP ENOUGH MOISTURE IN THE MOUNTAINS FOR THE POSSIBILITY OF LIGHT SNOW THROUGH MID AFTN. GOOD DOWNWARD SUBSIDENCE IN PLACE BUT STG OROGRAPHIC COMPONENT COULD SQUEEZE ANOTHER 1 TO 3 INCHES OF SNOW FM THE SYSTEM. SPATIAL CROSS-SECTIONS FM THE WRF STILL SHOW A STRONGLY AMPLIFIED MTN WAVE DEVELOPING. LOOKS LIKE 12-15Z THURSDAY MAY BE ITS PEAK. STRONGEST WINDS IN THE 750-700 MB LYR WITH A MAX OF 90 KTS. AS FOR THE NERN PLAINS...IT DOES NOT LOOK LIKE ANY POTENTIAL FOR ANY PCPN...WITH THE EXCEPTION OF THE NERN CORNER OF THE STATE. A SURFACE HIGH IS PROGGED TO BUILD INTO THE AREA THURSDAY NIGHT AS A SURGE MOVES INTO THE CWFA. THE WRF SHOW LITTLE IF ANY PCPN WHILE THE GFS IS MORE GENEROUS. WITH STG DOWNLOPE AND UPPER LEVEL SUBSIDENCE WL OPT FOR THE DRIER SOLUTION. FOR FRIDAY...INTERACTIVE SOUNDINGS NOT TOO OPTIMISTIC IN TERMS OF DEEP CONVECTION BUT FOR NOW WL KEEP MNTN OF ISOLD TSTMS. BEST POTENTIAL HOWEVER COULD RMN CONFINED TO THE MTNS. NO CHANGES FOR THE WEEKEND...WITH A DRIER WLY FLOW IN PLACE SATURDAY. MOISTURE MAY START TO AGAIN INCREASE LATE SUNDAY INTO MONDAY. SLGT CHC POPS WILL SUFFICE SO WL LEAVE THINGS FOR THAT PERIOD AS THEY WERE. && .AVIATION...GUSTY SWLY WINDS WILL DEVELOP BY 18Z AND CONTINUE THRU THE EARLY EVENING HOURS. WIND SPEEDS OF 25 TO 35 MPH WITH A FEW GUSTS TO 50 MPH MAY OCCUR FROM MID AFTN THRU THE EARLY EVENING HOURS. ONLY AN ISOLD HIGH BASED TSTM IS POSSIBLE IN THE 21Z-01Z TINME PERIOD. && .BOU WATCHES/WARNINGS/ADVISORIES...HIGH WIND WATCH FROM MIDNIGHT THROUGH NOON THURSDAY...ZONES 33..34..35..36..38..39. && RPK/FMC
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER CO 450 AM MDT WED JUN 06 2007 COZ030>051-061700- JACKSON COUNTY BELOW 9000 FEET-WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-GRAND AND SUMMIT COUNTIES BELOW 9000 FEET-SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/GILPIN/CLEAR CREEK/ SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-CENTRAL AND SOUTHEAST PARK COUNTY-LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY-NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/ EAST BROOMFIELD COUNTY-ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY-CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 450 AM MDT WED JUN 06 2007 ...HIGH WIND WATCH IN AFFECT FOR LATE TONIGHT THROUGH THURSDAY MORNING FOR THE MOUNTAINS AND IN AND NEAR THE FOOTHILLS... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT ...DAMAGING WINDS POSSIBLE LATE TONIGHT THROUGH THURSDAY MORNING EAST OF THE DIVIDE IN THE MOUNTAINS AND IN AND NEAR THE FOOTHILLS... A UNUSUALLY STRONG STORM SYSTEM FOR JUNE WILL MOVE ACROSS WYOMING LATE THIS AFTERNOON THROUGH TONIGHT. AS A RESULT A STRONG SURFACE PRESSURE GRADIENT WILL DEVELOP ALONG THE FRONT RANGE AND COMBINED WITH A FAVORABLE MOUNTAIN WAVE WILL ALLOW FOR THE DEVELOPMENT OF VERY STRONG WINDS IN THE MOUNTAINS AND FOOTHILLS LATE TONIGHT THROUGH THURSDAY MORNING. WIND GUSTS OF 90 TO 100 MPH ARE POSSIBLE AFTER MIDNIGHT IN THE MOUNTAINS AND FOOTHILLS WHICH MAY CONTINUE THROUGH THE MORNING HOURS ON THURSDAY. AT LOWER ELEVATIONS NEAR THE FOOTHILLS FROM FORT COLLINS SOUTH TO BOULDER AND GOLDEN WIND GUSTS OF 80 TO 90 MPH MAY DEVELOP LATE TONIGHT THROUGH THE MORNING HOURS ON THURSDAY. MEANWHILE SCATTERED SHOWERS AND THUNDERSTORMS WILL CHANGE TO SNOW IN THE MOUNTAINS THIS EVENING AND CONTINUE OVERNIGHT WITH ACCUMULATIONS OF 2 TO 4 INCHES POSSIBLE WITH LOCALLY UP TO 6 INCHES ABOVE 10000 FEET. THE VERY STRONG WINDS WILL PRODUCE AREAS BLOWING SNOW AND VERY POOR VISIBILITIES OVER THE HIGHER MOUNTAIN PASSES BY LATE EVENING WHICH WILL CONTINUE OVERNIGHT. OVER NORTHEAST COLORADO SOUTHWEST WINDS WILL INCREASE TO 20 TO 35 MPH BY AFTERNOON WITH GUSTS OF 40 TO 50 MPH POSSIBLE WHICH WILL CONTINUE THROUGH THE EARLY EVENING HOURS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY AN UNSEASONABLEY COOL STORM SYSTEM WILL BRING SNOW TO THE MOUNTAINS ON THURSDAY...WITH VERY WINDY CONDITIONS EXPECTED IN AND NEAR THE FRONT RANGE FOOTHILLS IN THE MORNING. WEST WINDS FROM 25 TO 40 MPH ARE EXPECTED WITH GUSTS OF 80 TO 90 MPH IN THE FOOTHILLS AND MOUNTAINS DURING THE MORNING HOURS. THE STRONG WEST TO NORTHWEST FLOW WILL ALLOW FOR SOME LIGHT SNOW ACCUMULATIONS THROUGH MUCH OF THE DAY WEST OF THE CONTINENTAL DIVIDE. THE SNOW WILL DIMINISH IN THE MOUNTAINS THURSDAY NIGHT. DRIER AND WARMER WEATHER IS EXPECTED TO RETURN BY THE WEEKEND. ANOTHER SYSTEM MAY BRING MORE MOISTURE TO THE STATE BY EARLY NEXT WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. RPK/COOPER
The national radar mosaic for the moment the first event began.
5 high wind. Local standard time, as filed.
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, June 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: 39962, 39965, 39959, 39966, 39968.