A series of two Pacific storms tracked across the region bringing winter conditions to the mountains of eastern Utah. The first system dragged a cold front across the state and spread snowfall across the eastern Utah mountains, as well as some of the lower valleys.
Every event with a place to put it; 3 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 series of two Pacific storms tracked across the region bringing winter conditions to the mountains of eastern Utah. The first system dragged a cold front across the state and spread snowfall across the eastern Utah mountains, as well as some of the lower valleys. The second low pressure system dropped down into the Great Basin region and formed a closed low pressure system near the four corners area. This continued mountain snowfall across the east central and southeast Utah mountains.
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 Nov 12, 4:14 AM MST, 10 hours 46 minutes earlier.
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</html>HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND JUNCTION CO 219 PM MST THU NOV 12 2009 COZ001>014-017>023-UTZ022>025-027>029-131130- 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- 219 PM MST THU NOV 12 2009 ...NUMEROUS WINTER STORM WARNINGS AND ADVISORIES ARE IN EFFECT FOR MUCH OF WESTERN COLORADO TONIGHT THROUGH SUNDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN COLORADO. .DAY ONE...TONIGHT AND FRIDAY WIDESPREAD SNOW WILL DEVELOP OVER THE MOUNTAINS TONIGHT...WITH LOCALLY HEAVY SNOWFALL DEVELOPING BY EARLY FRIDAY MORNING. MOUNTAIN SNOWFALL ACCUMULATIONS THROUGH FRIDAY WILL RANGE FROM 6-12 INCHES ESPECIALLY OVER THE NORTHERN RANGES. PLEASE VISIT HTTP://WEATHER.GOV/GJT FOR THE LATEST INFORMATION REGARDING THIS WINTER STORM. DAYS TWO THROUGH SEVEN...FRIDAY NIGHT THROUGH WEDNESDAY SNOWFALL WILL CONTINUE OVER MOST MOUNTAIN LOCATIONS AND SOME VALLEYS AS A SECONDARY COLD FRONT MOVES THROUGH THE AREA SATURDAY AND SATURDAY NIGHT. AS A RESULT HAZARDOUS WINTER TRAVELING CONDITIONS WILL OCCUR OVER THE MOUNTAINS OF WESTERN COLORADO AND EASTERN UTAH THROUGH THIS WEEKEND. HOWEVER THE EMPHASIS OF THE HEAVIER SNOWFALL WILL TURN TOWARD THE SOUTHERN PORTION OF THE CWA. CONDITIONS SHOULD IMPROVE LATE SUNDAY NIGHT AS HIGH PRESSURE AND DRIER WEATHER ARE EXPECTED THROUGH WEDNESDAY. .SPOTTER INFORMATION STATEMENT SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT. TGJT
The national radar mosaic for the moment the first event began.
3 winter weather. Local standard time, as filed.
Snowfall of 5 to 12 inches occurred above the 8,000 foot level, with 2 to 5 inches at lower elevations. Wind gusts up to 35 mph produced blowing and drifting snow.
Snowfall of 5 to 12 inches occurred across the area with wind gusts up to 45 mph producing blowing and drifting snow.
Snowfall of 5 to 12 inches occurred across most of the area with locally higher amounts above the 9,000 foot level, including 16 inches at the La Sal Mountain SNOTEL site. Wind gusts up to 30 mph produced blowing and drifting snow.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2009Every state in 2009This day in weather historyWarnings in Utah, November 2009
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 2026-09-30. Each event’s entry at NCEI: 197171, 197168, 197169.