A cold spring-time airmass brought freezing temperatures to extreme 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 cold spring-time airmass brought freezing temperatures to extreme 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 Mar 29, 5:06 PM MST, 1 hour 54 minutes earlier.
AREA FORECAST DISCUSSION..UPDATED NATIONAL WEATHER SERVICE GRAND JUNCTION CO 606 PM MDT THU MAR 29 2007 UPDATED WATCHES/WARNINGS/ADVISORIES SECTION .SHORT TERM (TONIGHT THROUGH SATURDAY)... TODAY...MOST NORTHERN SKI AREAS HAVE REPORTED SOME ACCUMULATIONS... THOUGH THE WEST ELKS AND SAN JUANS HAVE HAD LITTLE TO NO SNOW. TRAVEL OVER THE I-70 PASSES IS REPORTED TREACHEROUS. THIS AFTERNOON... ENHANCED AREAS IN SE UTAH AND THE UT-WY-CO CORNER THIS AFTERNOON HAVE WEAKENED WITH WARMING TOPS AND ONLY LIGHT PRECIP REPORTED UNDERNEATH. MARGINAL INSTABILITY HAS NOT PRODUCED ANY THUNDERSTORMS THIS AFTERNOON. WITH THE UPPER LOW IN NW COLORADO...FORECAST CHALLENGES ARE THE DETAILS AS THE LOW WOBBLES THEN EJECTS LATE FRIDAY. TONIGHT-FRIDAY NIGHT...UPPER LOW LIFTS INTO SOUTHERN WYOMING WITH A TROF LINGERING TO THE 4-CORNERS. 12 AND 18Z RUNS ONLY PRODUCE LIGHT SNOWFALL TONIGHT FAVORING THE ELKS/WEST ELKS/SAN JUANS...BUT EXPECT THE NORTH TO REMAIN THE FAVORED AREA WITH DEEPEST MOISTURE. STILL THE MODELS DO NOT HAVE A STRONG HANDLE ON MESO-SCALE FORCING THAT WILL PRODUCE THE BETTER SNOWFALL. STRONG CYCLONIC FLOW OVER THE CWA AND MTN TOP TEMPS ABOUT -8C...TOO WARM FOR EFFICIENT SNOW PRODUCTION. THEN AS THE LOW BEGINS TO EJECT TO THE NNE LATE FRIDAY...A STRONG VORT MAX RAKES THE CWA FROM W TO E. WITH ONLY MARGINAL SNOW AMOUNTS EXPECTED TONIGHT...COORDINATED WITH THE RIW AND SLC OFFICES TO LET THE WINTER STORM WARNINGS EXPIRE AT 6 PM. STILL HAVE KEPT HIGH POPS ESPECIALLY NORTH AND CENTRAL MTNS AND SNOW AMOUNTS JUST BELOW ADVISORY CRITERIA. DRYING OCCURS LATE FRIDAY FROM WEST TO EAST WITH LINGERING SNOW SHOWERS IN THE NORTHERN MTNS OVERNIGHT. SATURDAY...NW FLOW BRINGS A DRYING AND WARMING TREND. RAMEY .LONG TERM (SATURDAY NIGHT THROUGH THURSDAY)... NW FLOW BECOMES WESTERLY SUN AS AN UPPER LOW SETTLES OVER SWRN CANADA. WEAK PAC WAVE RACES UNDERNEATH THE LOW AND ACROSS ID/WY FOR A SLIGHT CHANCE OF PRECIP ACROSS THE N SUN NIGHT. BREEZY W-SW WINDS IN H7 WARM ADVECTION INDICATED SUN...ESPECIALLY BY THE WRF...AS A 700 MB FRONT APPROACHES FROM THE NW...ONLY TO STALL ALONG THE NORTHERN BORDER OF OUR FORECAST AREA SUN NIGHT-MON. ANOTHER WAVE/VORT LOBE ROTATING AROUND THE CANADIAN LOW THEN BRUSHES THE N MON NIGHT AND TUE FOR CONTINUED LOW POPS FOR THE N. THIS SECOND WAVE A LITTLE MORE AMPLIFIED ON THE LATEST MODEL RUNS THAN EARLIER. WEAK WAVES SHOWN TOWARDS THU AS RIDGING BUILDS OVER THE WEST. SUSPECT THERE WILL CONTINUE TO BE DIFFERENCES IN TIMING/STRENGTH AS MODELS TRY TO ZERO IN ON THE EVOLVING PATTERN FOR NEXT WEEK. WILL CONTINUE WITH A MOSTLY DRY FORECAST FOR NEXT WEEK...ESPECIALLY FOR SE UT/SW CO. TEMPS WILL BE WARMING. && .GJT WATCHES/WARNINGS/ADVISORIES... .CO...FREEZE WARNING AGAIN TONIGHT FOR ZONES 6/7/11/20/21. .UT...FREEZE WARNING AGAIN TONIGHT FOR ZONES 21/27. JOE/JAD
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND JUNCTION CO 622 PM MDT THU MAR 29 2007 COZ001>014-017>023-UTZ022>025-027>029-301130- 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- 622 PM MDT THU MAR 29 2007 ...FREEZE WARNING AGAIN TONIGHT FOR PORTIONS OF WEST CENTRAL AND SOUTHWEST COLORADO AND SOUTHEAST UTAH... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN COLORADO AND EASTERN UTAH. .DAY ONE...TONIGHT SNOW SHOWERS WILL CONTINUE ACROSS THE AREA TONIGHT. ADDITIONAL SNOW ACCUMULATIONS ARE EXPECTED TO BE LIGHT...GENERALLY FROM 1 TO 3 INCHES IN THE MOUNTAINS...WITH LOCALLY HIGHER AMOUNTS NEAR THE CONTINENTAL DIVIDE. ROADWAYS WILL BE ICY AND SNOWPACKED RESULTING IN HAZARDOUS DRIVING CONDITIONS. FREEZING TEMPERATURES ARE EXPECTED AGAIN TONIGHT AT MOST VALLEY LOCATIONS...THREATENING VEGETATION THAT HAS BUDDED EARLY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT...BUT SPOTTERS ARE ENCOURAGED TO REPORT ANY STRONG WINDS AS WELL AS RAIN AND SNOW AMOUNTS OBSERVED. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SNOW WILL DIMINISH FROM WEST TO EAST ON FRIDAY WITH THE BEST CHANCE OF SNOW OVER THE NORTHERN AND CENTRAL MOUNTAINS OF WESTERN COLORADO. TRAVEL WILL REMAIN HAZARDOUS THROUGH FRIDAY OVER MANY HIGHWAYS AND ROADS THROUGH THE MOUNTAINS DUE TO SNOWPACKED CONDITIONS AND POOR VISIBILITY AT TIMES. FREEZING TEMPERATURES ARE EXPECTED AT MOST VALLEY LOCATIONS EARLY FRIDAY MORNING WHERE VEGETATION HAS BUDDED EARLY. THERE WILL BE A SLIGHT CHANCE OF SNOW IN THE NORTHEAST UTAH MOUNTAINS AND THE NORTHERN AND CENTRAL COLORADO MOUNTAINS SUNDAY THROUGH TUESDAY. PLEASE VISIT THE GRAND JUNCTION NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/GJT FOR ADDITIONAL INFORMATION. EH/CJC/TAL
The national radar mosaic for the moment the first event began.
1 frost/freeze. Local standard time, as filed.
Minimum temperatures ranged from 24 to 32 degrees Fahrenheit.
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, March 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: 22969.