High winds developed in and near the Front Range Foothills of Boulder and Jefferson Counties. Peak wind gusts included: 89 mph at the National Wind Technology Center; 88 mph atop Niwot Ridge; 83 mph, 4 miles east-northeast of Bergen Park; 80 mph, 3 miles southeast of Jamestown.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 BOU wrote it up.
High winds developed in and near the Front Range Foothills of Boulder and Jefferson Counties. Peak wind gusts included: 89 mph at the National Wind Technology Center; 88 mph atop Niwot Ridge; 83 mph, 4 miles east-northeast of Bergen Park; 80 mph, 3 miles southeast of Jamestown.
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 Dec 22, 2:45 PM MST, 10 hours 33 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DENVER CO 245 PM MST SAT DEC 22 2007 .SHORT TERM...WEST TO NORTHWEST FLOW ALOFT ACROSS THE FRONT RANGE WILL SUPPORT A MOUNTAIN WAVE THROUGH SUNDAY MORNING. LOOKS LIKE WIND SPEED MAXIMUM MAY OCCUR EARLY THIS EVENING AS UPPER LEVEL JET MAX MOVES OFF TO THE EAST OF THE FORECAST AREA...COINCIDING WITH BEST SHEAR AND STABILITY PROFILE. THEN MOUNTAIN TOP STABLE LAYER BEGINS TO WEAKEN AS NEXT STORM SYSTEM APPROACHES THE AREA. WILL CONTINUE TO MENTION THE GUSTY WINDS IN/NEAR THE FRONT RANGE WITH PEAK GUSTS AROUND 65 MPH IN THE INDIAN PEAKS AND GENERALLY BETWEEN 30 AND 50 MPH IN WIND PRONE AREAS OF THE FOOTHILLS. MID AND HIGH LEVEL MOISTURE INCREASING TONIGHT SO THIS WILL BRING INCREASING CLOUDINESS TO THE FORECAST AREA. BEST LOW/MID LEVEL MOISTURE ARRIVES OVER THE MOUNTAINS OF WESTERN JACKSON/GRAND COUNTIES LATE TONIGHT...AND THEN INTO THE FRONT RANGE MOUNTAINS AND SUMMIT COUNTY BY SUNDAY MORNING. OROGRAPHICS QUITE STRONG WHICH WILL HELP SNOW PRODUCTION BUT INSTABILITY IS LIMITED WITH LAPSE RATES ONLY AVERAGING 4-5C/KM. SNOW MODEL KICKED OUT A TRACE TO 3 INCHES...AND GIVEN OVERALL SYNOPTIC SCALE Q-G VERTICAL MOTION IS RATHER WEAK...THESE AMOUNTS SEEM REASONABLE. ON THE PLAINS...THE FLOW REMAINS TOO NORTHWESTERLY TO SUPPORT MUCH THREAT OF PRECIP. WE WILL STILL HAVE TO MONITOR A POTENTIAL FOR A LONGMONT ANTICYCLONE WHICH WOULD HELP PRECIP CHANCES IN THE LOWER ELEVATIONS. HAVE INCLUDED JUST A SLIGHT CHANCE OVER THE PALMER DIVIDE AREA FOR NOW. .LONG TERM...UPR LVL STORM SYSTEM WL CONTINUE TO MOVE THRU THE DISTRICT SUNDAY NIGHT INTO MONDAY. WK LIFT DURING THE EVENT...BUT SOME JET ENERGY WILL SUFFICE TO KEEP LGT SNOW SHWRS GOING IN THE MTNS THRU THE NGT. SINCE LAPSE RATES AND OROGRAPHIC COMPONENT NOT IMPRESSIVE...LGT SNOW ACCUMULATIONS SHOULD BE CONFINED TO NRN MTN ZONES. THIS SYSTEM WL DEPART THE AREA MONDAY LEAVING A PARTLY CLOUDY AND WARMER DAY FOR THE 24TH. EXTREMELY STRONG JET OVR ERN PAC WL CONTINUE TO USHER IN A SEEMINGLY ENDLESS PARADE OF STORMS OVER THE NEXT 7 TO 10 DAYS. NEXT STORM LOOKS TO ARRIVE OVR THE WEST SLOPE TUESDAY MRNG. VERY STG SFC CDFNT WL ARRIVE ON THE PLAINS DURING THE MRNG HOURS WITH H7 TEMPS FALLING TO 15 C OR LOWER DURING THE MRNG. WINDS BE STG OUT OF THE NORTH THRU MOST OF THE DAY. AS FAR AS SNOWFALL GOES...SHOULD BE A BRIEF PERIOD OF LGT SNOW TUES MRNG AS THE SFC MOVES THRU WITH SNOW SHOWERS LIKELY IN THE MTNS THROUGHOUT THE DAY. TEMPS WL BE IN THE UPR 20S OR SO ON THE PLAINS...WITH THE STG WINDS...WIND CHILLS MAY BE AN ISSUE IN THE AFTN EAST OF DENVER. AFTER A BREAK BTWN STORMS WED...NEXT SYSTEM SHOULD ARRIVE THURS. THIS TROUGH APPEARS TO BE A BIT DPR THAN THE ONE ON THE 25TH AND IF IT SINKS INTO THE 4 CORNERS AS SOME OF THE ENSEMBLE MEMBERS DEPICT... SOME SIGNIFICANT SNOWFALL MAY BE POSSIBLE ON THE FNT RANGE AND MTNS EAST OF THE DIVIDE THURS. WILL KEEP AN EYE ON THIS ONE AS IT MAY BE THE BEST STORM OF THE WEEK. OPERATIONAL GFS DEPICTING YET ANOTHER STORM FOR THE START OF THE NEW YEAR. QUITE A STORMY LONG TERM PERIOD COMING UP. && .AVIATION...VFR CONDITIONS WITH TYPICAL DRAINAGE WINDS EXPECTED THROUGH SUNDAY. && .BOU WATCHES/WARNINGS/ADVISORIES...NONE && BARJENBRUCH/046
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER CO 1100 AM MST SAT DEC 22 2007 COZ030>051-231300- 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- 1100 AM MST SAT DEC 22 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT GUSTY WINDS WILL CONTINUE TO INCREASE IN THE MOUNTAINS AND FRONT RANGE FOOTHILLS THROUGH TONIGHT. PEAK GUSTS ARE EXPECTED TO REACH AROUND 50 MPH IN WIND PRONE AREAS OF THE FOOTHILLS...WITH GUSTS AROUND 65 MPH ACROSS THE FRONT RANGE MOUNTAINS ABOVE TIMBERLINE. THE STRONG AND GUSTY WINDS WILL PRODUCE BLOWING AND DRIFTING SNOW OVER THE HIGHER MOUNTAIN PASSES AND IN OPEN AREAS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY A SERIES OF PACIFIC STORM SYSTEMS WILL SWEEP ACROSS THE AREA NEARLY EVERY OTHER DAY THROUGH NEXT FRIDAY. THE FIRST OF THESE STORM SYSTEMS IS EXPECTED TO PASS OVER NORTHEAST COLORADO SUNDAY AFTERNOON AND EVENING. THIS STORM WILL BRING SOME LIGHT ACCUMULATIONS TO THE HIGH COUNTRY. THIS STORM WILL CLEAR OUT OF THE AREA MONDAY BEFORE THE NEXT STORM ARRIVES TUESDAY MORNING. THIS STORM WILL OFFER A BETTER CHANCE OF ACCUMULATING SNOW ACROSS THE FRONT RANGE ALONG WITH GUSTY WINDS AND COLD TEMPERATURES. HOWEVER...THE STRONGEST STORM OF THE WEEK IS EXPECTED TO MOVE THROUGH AREA THURSDAY. THIS STORM HAS THE POTENTIAL TO PRODUCE SIGNIFICANT SNOWFALL ACROSS THE ENTIRE AREA THURSDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. BARJENBRUCH/046
The national radar mosaic for the moment the first event began.
4 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, December 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: 63734, 63733, 63731, 63730.