A moist Pacific storm system brought significant snowfall to the mountains of southeast Utah.
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.
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 moist Pacific storm system brought significant snowfall to the mountains of southeast Utah.
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 Feb 10, 3:08 PM MST, 7 hours 52 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND JUNCTION CO 308 PM MST SAT FEB 10 2007 .SHORT TERM (TONIGHT THROUGH MONDAY)... FLAT RIDGE REMAINED OVER THE CWFA TODAY. A WEAK SHORTWAVE WHICH MOVED EASTWARD THROUGH THE RIDGE EARLY THIS MORNING GENERATED SNOW OVER THE NORTHERN AND CENTRAL MOUNTAINS FOR MUCH OF THE MORNING. SATELLITE...SURFACE OBSERVATIONS AND AREA WEB CAMS INDICATED AIRMASS HAD STABILIZED IN THE WAKE OF THE DISTURBANCE LEAVING JUST A FEW POCKETS OF LIGHT SNOW OVER THE PEAKS OF THE DIVIDE EARLY THIS AFTERNOON. SNOWFALL ACCUMULATIONS HAVE BEEN LIGHT ACCORDING TO SKI REPORTS AND SNOTEL OBSERVATIONS. TONIGHT: EXPECT SNOW TO INCREASE IN AREAL EXTENT AGAIN OVERNIGHT AS YET ANOTHER SHORTWAVE IS EJECTED FROM THE LOW PRESSURE SYSTEM OFF THE WEST COAST. MODEL GUIDANCE SUGGEST THIS DISTURBANCE WILL GENERATE LIGHT SNOWFALL ACCUMULATIONS SIMILAR TO LAST NIGHT. CLOUD COVER WILL CONTINUE TO MODERATE LOWS AND MADE ONLY MINOR ADJUSTMENTS TO FORECAST FEATURING NEAR PERSISTENCE TEMPS. SUNDAY: MODELS HINT AT DECREASE IN SNOWFALL DURING THE MORNING AS SHORTWAVE PASSES EAST OF THE DIVIDE EARLY. BOTH GFS AND NAM SHOW FLOW BACKING TO THE SOUTHWEST DURING THE AFTERNOON AS A MORE ENERGETIC WAVE PUSHES INTO THE GREAT BASIN. AS IN PREVIOUS DISCUSSION...FELT QPF A BIT OVERSTATED BUT WILL GO ALONG WITH THE IDEA OF TREND TOWARD INCREASED AREAL SNOWFALL. THOUGH PACIFIC MOISTURE OVER THE REGION WELL ESTABLISHED...DYNAMIC LIFT AND OROGRAPHICS UNIMPRESSIVE WHILE LAPSE RATES NOT VERY STEEP SO EXPECT SNOWFALL ACCUMULATIONS WILL REMAIN LIGHT. HIGHS WILL CONTINUE TO BE ABOVE NORMAL SO LOWER VALLEYS CAN EXPECT PRECIPITATION IN THE FORM OF RAIN. SUNDAY NIGHT: BOTH GFS AND NAM IN AGREEMENT WITH A BETTER DEFINED SHORTWAVE PASSING OVER THE REGION DURING THE NIGHT. DYNAMIC AND OROGRAPHIC LIFT SUPPORT INCREASED ACCUMULATIONS...BUT FEEL TOTALS WILL FALL A BIT SHORT OF ADVISORY CRITERIA EXCEPT IN A FEW FAVORED LOCATIONS. OVERNIGHT LOWS WILL REMAIN MILD DESPITE COLDER TEMPERATURES AT THE 7H LEVEL. MONDAY: IMPROVING CONDITIONS EXPECTED IN NVA ON THE BACKSIDE OF THE SHORTWAVE. TEMPERATURES WILL REMAIN LARGELY UNCHANGED. .LONG TERM (MONDAY NIGHT THROUGH SATURDAY)... MODELS CONTINUE TO PREDICT AN UNSETTLED FLOW THROUGH MOST OF THE LONG TERM PERIOD. A RELATIVELY UNSTABLE...MOIST PACIFIC FLOW WILL REMAIN OVER THE AREA AS THE HIGHLY AMPLIFIED LARGE SCALE WESTERN RIDGE/EASTERN TROUGH PATTERN BREAKS DOWN AND BECOMES MORE COMPLICATED. A SERIES OF SHORTWAVES MOVING ACROSS THE AREA AND INTO THE BASE OF THE TROUGH WILL PERIODICALLY BRING AN INCREASE TO THE CHANCE OF PCPN. BUT MODELS HAVE HAD DIFFICULTIES IN THE TIMING OF THESE WAVES SO HAVE MADE MODEST CHANGES TO THE BROAD-BRUSHED FORECAST. HOWEVER IT DOES LOOK LIKE THE BEST CHANCE OF PCPN WILL BE TUE/TUE NIGHT AS THE FIRST AND STRONGEST WAVE MOVES OVER THE AREA. SO HAVE INCREASED POPS...MAINLY OVER THE SOUTHERN MOUNTAINS AS THE FLOW WILL SPLIT SOMEWHAT WITH BEST DYNAMICS REMAINING SOUTH OVER AZ AND NM. WITH THE RELATIVELY MILD CONDITIONS RAIN OR MIXED PCPN WILL BE POSSIBLE FOR MANY VALLEY LOCATIONS. TOWARDS THE END OF THE WEEK...THE LARGE SCALE PATTERN LOOKS LIKE IT WILL AMPLIFY AGAIN FOR A DRYING TREND WEST OF THE DIVIDE. HOWEVER... CONFIDENCE REMAINS LOW SO HAVE KEPT SOME LOW GRADE POPS OVER THE MOUNTAINS THROUGH SAT. NOT TOO MUCH COLD AIR WITH EACH WAVE SO TEMPS WILL REMAIN NEAR NORMAL. HAVE MADE JUST SMALL ADJUSTMENTS TO THE PREVIOUS FORECAST WHICH MORE OR LESS AGREES WITH GUIDANCE NUMBERS. && .GJT WATCHES/WARNINGS/ADVISORIES... .CO...NONE. .UT...NONE. NL/EH
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND JUNCTION CO 427 AM MST SAT FEB 10 2007 COZ001>014-017>023-UTZ022>025-027>029-111200- 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- 427 AM MST SAT FEB 10 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN COLORADO. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED...LIGHT SNOW SHOWERS ARE EXPECTED OVER THE HIGHER NORTHERN MOUNTAINS THIS AFTERNOON AND TONIGHT. ACCUMULATIONS OF 1-3 INCHES CAN BE EXPECTED ABOVE 8000 FEET. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SNOW WILL INCREASE AND BECOME MORE WIDESPREAD SUNDAY AND SUNDAY NIGHT WITH ADDITIONAL SNOW ACCUMULATIONS OVER THE MOUNTAINS OF 4-7 INCHES. MOUNTAIN PASSES WILL BECOME ICY AND SNOWPACKED MAKING TRAVEL HAZARDOUS. AT LOWER ELEVATIONS A SCATTERED MIX OF RAIN AND SNOW IS EXPECTED. MONDAY THROUGH FRIDAY THERE IS A CHANCE OF SNOW IN ALL THE MOUNTAINS...WITH A CHANCE OF RAIN AND SNOW AT LOWER ELEVATIONS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT. MC/CJC
The national radar mosaic for the moment the first event began.
1 winter weather. Local standard time, as filed.
Widespread snowfall of 5 to 7 inches blanketed the area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2007Every state in 2007This day in weather historyWarnings in Utah, February 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: 20250.