A Pacific storm system moved through eastern Utah, bringing 12 to 15 inches of new snow to the mountains in extreme southeast Utah. Southwest winds of 20 to 40 mph caused areas of blowing and drifting snow.
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 Pacific storm system moved through eastern Utah, bringing 12 to 15 inches of new snow to the mountains in extreme southeast Utah. Southwest winds of 20 to 40 mph caused areas of blowing and drifting snow.
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 29, 3:00 AM MST, 7 hours earlier.
WESTERN COLORADO & EASTERN UTAH AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
300 AM MST THU NOV 29 2001
COMPLEX WEATHER PATTERN FOR THE NEXT COUPLE OF DAYS WITH NO SINGLE
FEATURE TO FOCUS ON. BUT MAIN MESSAGE FOR TODAY WILL BE WARM MOIST
ADVECTIVE PATTERN OVER A DEEP COLD DOME. MID LEVEL CLOUD HAS REACHED
WESTERN COLORADO.. AND UPSTREAM RADARS FROM CEDAR CITY AND SALT
LAKE SUGGEST THAT AREAS OF LIGHT SNOW DEVELOPING EAST OF THE
WASATCH RANGE. THE TREND WILL BE LOWER CEILINGS AND DEVELOPING SNOW
THIS MORNING AS FULL LATITUDE WEST COAST TROUGH SLOWLY SHIFTS INLAND.
ETA AND AVN MODEL CONTINUE THEIR CONSISTENCY OF PRODUCING A WAVE
ALONG THE FRONT THAT SHEARS ACROSS THE SOUTHERN ZONES LATE THIS
AFTERNOON AND EVENING. SOUTHEAST UTAH AND SOUTHWEST COLORADO WILL BE
IN THE LEFT EXIT REGION OF 130 KNOT JET AND GENERATING THE BEST
UPWARDS MOTION THOSE AREAS. BUT STORM ENERGY FROM WEST COAST TROUGH
COMES IN PIECES.. AND THE PACIFIC FRONT GETS WASHED OUT AS IT MOVES
FARTHER INLAND BECAUSE COLDER AIR RESIDES AHEAD OF THE FRONT.
HENCE.. THIS STORM SYSTEM WILL BE WEAKENING AS IT TRAVERSES WESTERN
COLORADO. THE MESOETA PLACES MAXIMUM PRECIPITATION AND SNOWFALL ON A
NORTHWEST TO SOUTHEAST AXIS FROM UTAH/S BOOK CLIFFS TO THE WESTERN
PORTION OF THE SAN JUANS. THIS APPEARS REASONABLE AND WILL BASE
WINTER STORM WARNINGS AND SNOW ADVISORY ISSUANCE ON THIS IDEA. THAT
IS.. WILL UPGRADE WINTER STORM WATCH TO A WARNING FOR THE MOUNTAINS
IN THE SOUTHERN ZONES.. AND ISSUE SNOW ADVISORIES FOR THE CENTRAL
MOUNTAINS. MANY VALLEYS WILL BE INCLUDED IN THE SNOW ADVISORY AS
DIABATIC PROCESSES IN OVERRUNNING PATTERN DOMINATE TODAY AND QUICKLY
SATURATE THE LOWER LEVELS. SOME MID LEVEL COLD ADVECTION ON FRIDAY
IN WESTERLY FLOW PRODUCES MARGINAL INSTABILITY FOR THE MOUNTAINS ON
FRIDAY. WITH THE PASSING OF A SECONDARY TROUGH AXIS.. WILL HAVE
MOUNTAIN HIGHLIGHTS LAST THROUGH FRIDAY (AND LET LATER SHIFTS REFINE
AS NEEDED). WILL NOT INITIALLY INCLUDE THE NORTHERN MOUNTAINS IN ANY
HIGHLIGHTS FOR THE MORNING PACKAGE.. BUT THEY MAY NEED TO BE
CONSIDERED FOR LATER TONIGHT AND FRIDAY. BRIEF RESPITE FRIDAY
NIGHT.. BUT LATEST MODELS SHOW MORE OVERRUNNING MOISTURE REACHING
NORTHWEST COLORADO BY SATURDAY AFTERNOON. GIVEN THE AMOUNT OF ENERGY
CROSSING THE PACIFIC.. THE MODELS WILL CONTINUE TO STRUGGLING WITH
DETAILS ON TIMING AND STRENGTH OF EACH SHORT WAVE. BUT IT/S
REASONABLE TO SAY THAT EACH SHORT WAVE HAS THE POTENTIAL TO PRODUCE
ACCUMULATING MOUNTAIN SNOW.. MODELS SHOW EACH SHORT WAVE HAVING
DECENT BAROCLINICITY MOVING INTO THE INTERMOUNTAIN WEST. FRISBIE
EXTENDED (SUN-WED)...WRLY FLOW WILL HELP TO INCREASE PACIFIC MOISTURE
ACROSS CWFA SUN AHEAD OF DEVELOPING STORM OFF CA COAST. WEAK EMBEDDED
S/W WITH JET ENERGY MAY PRODUCE LIGHT PRECIP OVR MTNS SUN WITH BETTER
THREAT OF PRECIP MON-TUE AS PAC STORM MOVES INLAND. HAVE MADE MINOR
CHANGES TO SAT PERIOD WITH MAINLY P/C CONDITIONS AND HAVE LUMPED
MON-WED GIVEN UNSETTLED PATTERN. BRIEF WARMING AT H7 OCCURS SUN-MON
BUT WITH POTENTIAL SNOW COVER...HAVE BACKED OFF ON AFTN MAX TEMPS.
DJN.83
WESTERN COLORADO AND EASTERN UTAH EMERGENCY MANAGERS SHOULD MAINTAIN
A HIGH LEVEL OF WEATHER AWARENESS TODAY THROUGH FRIDAY...CHECK YOUR
LATEST FORECASTS AND WINTER WEATHER STATEMENTS FOR DETAILS.
.GJT...WINTER STORM WARNING TODAY THROUGH FRIDAY UTAH ZONE 28 AND
COLORADO ZONES 09 17>19
SNOW ADVISORY TODAY THROUGH FRIDAY UTAH ZONE 25 AND
COLORADO ZONES 03 12
SNOW ADVISORY TODAY AND TONIGHT UTAH ZONES 22 27 29 AND
COLORADO ZONES 06 07 11 14 20>23.The national radar mosaic for the moment the first event began.
1 winter storm. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2001Every state in 2001This day in weather historyWarnings in Utah, November 2001
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: 5274885.