A warm moist Pacific Storm featured a large mudslide in South Weber which measured 200 feet long and 60 feet wide and cover a portion of SR 60. A barn was also destroyed in the slide.
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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 SLC wrote it up.
A warm moist Pacific Storm featured a large mudslide in South Weber which measured 200 feet long and 60 feet wide and cover a portion of SR 60. A barn was also destroyed in the slide. Mudslides in Provo Canyon temporarily closed a 3-mile stretch of US Route 189 as well. Rainwater and snowmelt caused the Santa Clara river to rise above its banks and cover a bridge.Some heavier rainfall (liquid water equivalents) were, Brighton Crest (2.61), Snowbasin (2.60), Sundance (2.05), Zion Canyon 1.75, Zion NP 1.68, Solitude (1.44), East Layton 1.41, Layton Bench 1.39, The Canyons (1.14), NE Ogden Bench 1.07, St. George 1.06, Brianhead (0.90), Layton 0.88, Kanab, 0.88, Pleasant Grove 0.83 and Provo 0.57.
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 Salt Lake City, UT wrote its last area forecast discussion before the first event at Feb 19, 4:15 PM MST, 1 hour 45 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SALT LAKE CITY UT 415 PM MST SAT FEB 19 2005 .SYNOPSIS...A MOIST SOUTHWEST FLOW WITH A SERIES OF EMBEDDED WEATHER DISTURBANCES WILL CONTINUE OVER THE AREA THROUGH THE EARLY PART OF NEXT WEEK. && .DISCUSSION...OLD CLOSED LOW EJECTING NORTH-NORTHEAST OVER CA WHILE A POLAR BRANCH TROF SAGGING SOUTH ALONG 130W AND ANOTHER VIGOROUS SOUTHERN BRANCH SHORTWAVE COMBING TO REFORM A CLOSED LOW OFF THE CA COAST. ISOLATED THUNDERSTORMS HAVE DEVELOPED OVER THE SOUTHERN HALF OF UT AND ARE POSSIBLE MOST OF THE WAY NORTH TO SLC OVER THE NEXT COUPLE OF HOURS. A TROF EXTENDS FROM THE OLD LOW SOUTHWEST TO NEAR IPL AND WILL ROTATE NORTHEAST INTO OUR AREA TONIGHT. THUNDERSTORMS WILL CONTINUE WITH IT INTO THE EVENING HOURS BUT WILL LIKELY END LATER TONIGHT. THE NORTHWARD MOVEMENT OF THE SHORTWAVE WILL SLOW OVER THE NORTHERN PORTION OF THE AREA SUNDAY AS IT APPROACHES THE DEFORMATION ZONE OVER ID. THE OLD CORE SHEARS AS A RESULT OF THAT DEFORMATION AND WILL SOME OF ITS ENERGY SLIDING EAST OVER ABOUT THE NORTHERN QUARTER OF THE AREA. EXPECT A GOOD SHOT OF PRECIP OVER SOUTHWEST UT TONIGHT AS THE WAVE SWINGS PAST. HAVE KEPT THE HEAVY SNOW WARNING FOR TONIGHT FOR THE SOUTHERN MOUNTAINS. NEW SNOW TONIGHT WILL JUST BARELY REACH WARNING AMOUNTS BUT WIDESPREAD ADVISORY AMOUNTS EXPECTED SO JUST CONTINUING THE WARNING PER LOCAL POLICY AVOIDS CONFUSION. MODERATE PRECIP AMOUNTS OVER THE NORTH SUNDAY UNDER THE SHEARING WAVE AND SNOW ADVISORIES MAY BE NEEDED AGAIN BUT WILL LET THAT WAIT FOR THE NIGHT SHIFT TO DECIDE. WE GET A SHORTWAVE RIDGE OF SORTS OVER THE AREA MONDAY BUT WITH ENOUGH MOISTURE AND INSTABILITY TO PRODUCE SCATTERED SHOWERS. THEN HAVE GONE WITH THE GFS SOLUTION FOR THE LATTER PART OF THE WEEK WITH THE NEW LOW SLOWLY SHIFTING INLAND STARTING ABOUT TUESDAY. THE 12Z ECMWF HAS ADOPTED THIS IDEA AND IS NOW VERY SIMILAR TO THE LAST FEW GFS RUNS. BOTH PUT THE LOW CENTER NEAR THE SOUTHERN TIP OF NV AT 12Z WEDNESDAY DRIFTING TO NORTH CENTRAL AZ BY 12Z THURSDAY. AFTER THAT THE EC KEEPS THE REMNANTS PROGRESSIVE WHILE THE GFS KEEPS AT LEAST A PORTION OF THE TROF HANGING BACK OVER UT THROUGH FRIDAY. SO A RATHER UNSETTLED PERIOD BUT HARD TO TIE DOWN ANY DETAILS FOR THE MOST LIKELY AREAS AT ANY GIVEN TIME. THE TREND WILL BE DECREASING FROM THE NORTH AND WEST GOING INTO THE WEEKEND UNDER A NORTHERLY FLOW WITH RIDGING JUST TO OUR WEST. && .HYDRO...SHOWERS THIS EVENING OVER SOUTHWEST UT WILL TRANSITION TO WIDESPREAD RAIN/SNOW LATER TONIGHT. PRECIPITATION AMOUNTS AND SNOW LEVELS ARE EXPECTED TO BE SIMILAR TO LAST EVENINGS EVENT. HOWEVER WITH MANY STREAMS STILL ELEVATED FROM THE PREVIOUS EVENT...FLOWS ARE EXPECTED TO BE A LITTLE HIGHER LATE TONIGHT AND SUNDAY. THESE WILL STILL BE WELL BELOW FLOOD LEVELS BUT WILL BE HIGH ENOUGH TO CAUSE SOME EROSION OF STREAM BANKS AND TEMPORARY CROSSINGS. FLOWS SHOULD DROP SUNDAY NIGHT THROUGH MONDAY NIGHT. ANOTHER SURGE OF RAIN/SNOW IS POSSIBLE TUESDAY. && .AVIATION...NO AVIATION ISSUES AT THIS TIME...SEE SLCTAFSLC. && .SLC WATCHES/WARNINGS/ADVISORIES... UT...HEAVY SNOW WARNING SOUTHERN UTAH MOUNTAINS TONIGHT. WY...NONE. ID...NONE. && SANDERS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SALT LAKE CITY UT 535 AM MST SAT FEB 19 2005 IDZ024-025-UTZ001>021-WYZ021-201400- CACHE VALLEY/IDAHO PORTION-CACHE VALLEY/UTAH PORTION-CASTLE COUNTRY- CENTRAL AND SOUTHWEST MOUNTAINS- GLEN CANYON RECREATION AREA/LAKE POWELL- GREAT SALT LAKE DESERT AND MOUNTAINS-HENRY MOUNTAINS- NORTHERN WASATCH FRONT-SALT LAKE AND TOOELE VALLEYS-SAN RAFAEL SWELL- SANPETE/SEVIER VALLEYS-SOUTH CENTRAL UTAH-SOUTHERN WASATCH FRONT- SOUTHWEST UTAH-SOUTHWEST WYOMING-UTAHS DIXIE AND ZION NATIONAL PARK- WASATCH MOUNTAIN VALLEYS-WASATCH MOUNTAINS I-80 NORTH- WASATCH MOUNTAINS SOUTH OF I-80-WASATCH MOUNTAINS/IDAHO PORTION- WASATCH PLATEAU/BOOK CLIFFS-WEST CENTRAL UTAH-WESTERN UINTA BASIN- WESTERN UINTA MOUNTAINS- 535 AM MST SAT FEB 19 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO-THIRDS OF UTAH...EXTREME SOUTHEAST IDAHO AND EXTREME SOUTHWEST WYOMING. .DAY ONE...TODAY PERIODS OF SNOW ARE EXPECTED IN THE MOUNTAINS...THE MOUNTAIN VALLEYS AND THE CACHE VALLEY TODAY AND TONIGHT. SEE THE LATEST WINTER WEATHER STATEMENT (SLCWSWSLC) FOR DETAILS. LOCALLY HEAVY RAIN IS POSSIBLE IN THE LOWER ELEVATIONS OF THE FAR SOUTHERN VALLEYS. .DAYS TWO THROUGH SEVEN... SUNDAY THROUGH FRIDAY AFTER A BREAK ON MONDAY...PERIODS OF MOUNTAIN SNOW AND VALLEY RAIN ARE POSSIBLE STARTING TUESDAY AND CONTINUING THROUGH THE WEEK. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER TO NATIONAL WEATHER SERVICE.
The national radar mosaic for the moment the first event began.
2 debris flow, 1 flood. Local standard time, as filed.
A historic barn was destroyed in the landslide, along with landscaping equipment, tools and hay bales.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2005Every state in 2005This day in weather historyWarnings in Utah, February 2005
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: 5441483, 5441484, 5441485.