A vigorous spring storm produced heavy snow in the La Sal 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 vigorous spring storm produced heavy snow in the La Sal 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 Apr 8, 1:48 PM MST, 6 hours 12 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
248 PM MDT SUN APR 8 2007
.SHORT TERM (TONIGHT THROUGH TUESDAY)...
SHOWERS AND AREAS OF RAIN AND SNOW CONTINUE ACROSS MUCH OF THE
FORECAST AREA EARLY THIS AFTERNOON AHEAD OF A COMPACT UPPER LOW
CIRCULATION OVER NORTHERN UTAH. PRECIPITATION IS BECOMING MORE
CONVECTIVE OVER EASTERN UTAH AND FAR WESTERN COLORADO AS CLOUDS THIN
AND ALLOW FOR BETTER SURFACE HEATING. EXPECT SOME BRIEF HEAVY RAIN
WITH SOME OF THE SHOWERS AND THUNDERSTORMS THE REST OF THE DAY
ALONG WITH SOME SMALL HAIL. THE SNOW LEVEL IS GENERALLY 9 TO 10
THOUSAND FEET WITH CONVECTION LIKELY DRIVING IT DOWN ANOTHER 1 TO 2
THOUSAND FEET LOCALLY.
AREAS ALONG AND SOUTH OF INTERSTATE 70 WILL CONTINUE TO BE FAVORED
FOR MORE WIDESPREAD PRECIPITATION THROUGH TONIGHT AS THE UTAH UPPER
CIRCULATION MOVES OVER THE FOUR CORNERS BY DAYBREAK MONDAY. MOIST
LOW LEVELS AND CONTINUED DYNAMIC SUPPORT AHEAD OF THE SYSTEM
WARRANTS AN EXTENSION OF THE SNOW ADVISORY FOR THE SAN JUAN
MOUNTAINS UNTIL 6 AM MONDAY WITH STORM TOTAL ACCUMULATIONS IN THE 6
TO 12 INCH RANGE ABOVE 9 THOUSAND FEET. PATCHY FOG WILL DEVELOP
LATE TONIGHT AND EARLY MONDAY MORNING IN AREAS THAT RECEIVED
SUBSTANTIAL PRECIPITATION.
SHOWERS WILL LINGER ACROSS THE AREA MONDAY MORNING AS THE UPPER
LOW FILLS AND MOVES SOUTHEAST INTO NORTHERN NEW MEXICO. THE UNSETTLED
WEATHER WILL CONTINUE THOUGH AS WE QUICKLY TRANSITION INTO A FAST
MOVING ZONAL FLOW MONDAY AFTERNOON. HEIGHTS WILL FALL MONDAY NIGHT
AND TUESDAY AS A STRONG UPPER JET MOVES OVERHEAD AND A COLD FRONT
MOVES SOUTH INTO THE AREA. ENOUGH MOISTURE AVAILABLE IN THIS
WESTERLY FLOW FOR OROGRAPHIC AND WEAK DYNAMIC FORCING TO KEEP THE
CHANCE OF SHOWERS IN THE FORECAST THROUGH TUESDAY ESPECIALLY IN THE
MOUNTAINS. WARMER MONDAY BUT TEMPERATURES WILL TREND DOWN SEVERAL
DEGREES TUESDAY. LINDQUIST
.LONG TERM (TUESDAY NIGHT THROUGH SUNDAY)...
MAJOR CONCERN THIS PERIOD IS THE POSSIBILITY OF OVERNIGHT LOWS
DROPPING BELOW FREEZING IN THE LOWER ELEVATIONS ON WEDNESDAY MORNING
AND AGAIN FRIDAY AND SATURDAY MORNINGS.
PROGRESSIVE PATTERN SET UP FOR A WEEK OF UNSETTLED WEATHER INTO
NEXT WEEKEND. SLIGHT BREAK IN THE PATTERN ON WEDNESDAY AS A WEAK HIGH
PRESSURE RIDGE MOVES RAPIDLY THROUGH THE FLOW.
BEGINNING TUESDAY NIGHT A RELATIVELY SHARP COLD FRONT PUSHES
THRU THE CWA. MODELS IN FAIR AGREEMENT MOVING THIS TROUGH FROM SLC TO
SW CO AND INTO NE NM. AREAS THAT EXPERIENCE ANY CLEARING WED MORNING
WILL BE SUBJECT TO FREEZING TEMP.
A WEAK RIDGE POPS OVER US WEDNESDAY BEFORE THE NEXT WAVE MOVES
INTO THE AREA THURSDAY. BY SATURDAY WE FINALLY BEGIN TO SEE A BREAK
FOR AN IMPROVED WEEKEND WITH THE NEXT SYSTEM SCHEDULED AFTER THE
WEEKEND. OBVIOUSLY CONFIDENCE DROPS THE FARTHER OUT IN TIME WE GO.
BUT OVERALL THIS SHOULD BE A FAIRLY MOIST WEEK WITH TEMPS AT OR BELOW
NORMAL. 21/DJC
&&
.GJT WATCHES/WARNINGS/ADVISORIES...
.CO...SNOW ADVISORY FOR THE SAN JUAN MOUNTAINS UNTIL 6 AM
MONDAY...ZONES 018/019.
.UT...NONE.
TAL/DJCHAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE GRAND JUNCTION CO 347 PM MDT SUN APR 8 2007 COZ001>014-017>023-UTZ022>025-027>029-091145- 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- 347 PM MDT SUN APR 8 2007 ...SNOW ADVISORY UNTIL 6 AM MONDAY FOR THE SAN JUAN MOUNTAINS IN SOUTHWEST COLORADO... THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN COLORADO. .DAY ONE...REST OF TODAY AND TONIGHT WIDESPREAD SHOWERS AND A FEW THUNDERSTORMS CAN BE EXPECTED ACROSS EASTERN UTAH AND WESTERN COLORADO LATE THIS AFTERNOON THROUGH TONIGHT. BRIEF HEAVY RAIN...SMALL HAIL AND DANGEROUS LIGHTNING WILL BE ASSOCIATED WITH THE THUNDERSTORMS. SNOW WILL FALL OVER THE HIGHER ELEVATIONS...WITH LOCALLY HEAVY SNOW EXPECTED OVER THE SAN JUAN MOUNTAINS OF SOUTHWEST COLORADO. TOTAL SNOWFALL ACCUMULATIONS FROM 6 TO 12 INCHES CAN BE EXPECTED OVER THE SAN JUANS...WITH LESSER AMOUNTS OVER THE OTHER MOUNTAINS OF WESTERN COLORADO AND EASTERN UTAH. SNOW LEVELS WILL GENERALLY RANGE FROM 9000 TO 10000 FEET THROUGH EARLY EVENING...THEN LOWER TO AROUND 8000 FEET LATE TONIGHT. PLEASE VISIT THE GRAND JUNCTION NATIONAL WEATHER SERVICE WEBSITE AT HTTP://WEATHER.GOV/GJT FOR MORE INFORMATION. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THERE IS A CHANCE OF VALLEY RAIN SHOWERS AND MOUNTAIN SNOW SHOWERS THROUGH TUESDAY NIGHT. ISOLATED THUNDERSTORMS WILL ALSO BE POSSIBLE DURING THE LATE AFTERNOON AND EVENING HOURS. ANOTHER CHANCE OF RAIN AND SNOW WILL MOVE IN LATE NEXT WEEK AS A STRONG COLD FRONT MOVES INTO THE REGION. THIS SYSTEM WILL BRING IN ANOTHER SHOT OF COLD AIR...WITH THE POSSIBILITY OF FREEZING TEMPERATURES RETURNING TO SOME OF THE LOWER VALLEYS OF WESTERN COLORADO AND EASTERN UTAH BY THE END OF THE WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT. HOWEVER... SPOTTERS ARE ENCOURAGE TO PHONE IN ANY REPORTS OF HAIL... ALONG WITH SIGNIFICANT RAIN OR SNOWFALL AMOUNTS. JDC
The national radar mosaic for the moment the first event began.
1 winter weather. Local standard time, as filed.
Widespread snowfall of 5 to 10 inches occurred.
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, April 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: 27621.