Heavy, slow moving thunderstorms caused flooding in the Fremont river. Damage was reported in Capitol Reef National Park.
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The episode as NWS SLC wrote it up.
Heavy, slow moving thunderstorms caused flooding in the Fremont river. Damage was reported in Capitol Reef National Park.
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 Jul 24, 3:55 AM MST, 35 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SALT LAKE CITY UT 455 AM MDT TUE JUL 24 2007 .SYNOPSIS...HIGH PRESSURE TO THE EAST OF UTAH WILL MAINTAIN A VERY MOIST SOUTHERLY FLOW ACROSS THE GREAT BASIN THROUGH MIDWEEK. THE HIGH PRESSURE WILL DRIFT WEST AND SETTLE OVER UTAH BY THE END OF THE WEEK. && .DISCUSSION...THE UPPER HIGH CENTERED TO THE EAST OF THE GREAT BASIN WILL MAINTAIN THE VERY MOIST SOUTHERLY FLOW ACROSS THE FORECAST AREA THROUGH AT WEDNESDAY. A NUMBER OF VORTICITY MAXIMA CAN BE FOUND EMBEDDED IN THE SOUTHERLIES ACROSS AZ/ERN NV/UT. THE MOST ACTIVITY OF THESE IS MOVING NORTH NEAR THE NV/AZ BORDER. THIS FEATURE HAS GENERATED AN AREA OF FAIRLY WELL ORGANIZED CONVECTION OVER EXTREME SW UTAH...WITH LOCALLY HEAVY RAIN NOTED NORTH AND WEST OF KSGU. SOME OF THE TERRAIN ON THE AREA IS SUSCEPTIBLE TO FLASH FLOODING...BUT WITH THE CONVECTION MOVING STEADILY NORTH-NORTHEAST FEEL THAT THE RUNOFF SHOULD BE MANAGEABLE OVER THE NEXT HOUR OR SO. FOR NOW HAVE DECIDED AGAINST A FLASH FLOOD WATCH FOR SW UTAH TODAY. DYNAMIC SUBSIDENCE FOLLOWING THE ABOVE MENTION VORTICITY MAX SHOULD KEEP CONVECTION IN CHECK THROUGH ABOUT MIDAFTERNOON. NOT SEEING ANY TRAILING DYNAMIC SUPPORT THIS AFTERNOON TO ENHANCE CONVECTION... THOUGH WILL HAVE TO KEEP AN EYE ON THE OLD MCS THAT DISSIPATED OVER SW AZ EARLIER THIS EVENING. NOT MUCH CHANGE IN AMBIENT CONDITIONS EXPECTED HEADING INTO WEDNESDAY. AFTER WEDNESDAY THE UPPER HIGH EAST OF THE AREA TRIES TO PULL BACK INTO THE BASIN. THE GFS AND ECMWF ARE IN A BIT BETTER AGREEMENT WITH THIS SOLUTION. THE MOISTURE CURRENTLY OVER UTAH NOT LIKELY TO STRAY FAR...SO SCATTERED DIURNAL MOUNTAIN CONVECTION A GOOD BET LATE IN THE WEEK...AND ON INTO EARLY NEXT WEEK. THE ONLY AREA OF THE STATE THAT MAY SEE A DECREASE IN ACTIVITY WOULD BE THE FAR NORTH WHERE SLIGHTLY DRIER AIR WILL SEEP INTO THE AREA. && .AVIATION...SOUTHERLY WINDS WILL PREVAIL AT THE SLC TERMINAL THROUGH THE EARLY AFTERNOON HOURS...WITH ISOLATED GUSTS TO 22KT POSSIBLE. NORTHWESTERLY LAKE BREEZE WILL LIKELY BE DELAYED THIS AFTERNOON. THUNDERSTORM ACTIVITY COULD IMPACT THE SLC TERMINAL AND APPROACH GATES THIS AFTERNOON. && .FIRE WEATHER...DEEP LAYER MOISTURE COVERS THE FIRE DISTRICT THIS MORNING. SHOWERS/THUNDERSTORMS WILL BE WET THROUGH WEDNESDAY. RELATIVE HUMIDITY RECOVERY SHOULD BE 40 PERCENT OR HIGHER FOR ALL AREAS TONIGHT. && .SLC WATCHES/WARNINGS/ADVISORIES... UT...NONE. WY...NONE. && PUBLIC.........CONGER AVIATION/FIRE WEATHER...CHENG FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT...HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SALT LAKE CITY UT 630 AM MDT MON JUL 23 2007 UTZ001>016-019>021-517-518-WYZ021-241300- CACHE VALLEY/UTAH PORTION-NORTHERN WASATCH FRONT- SALT LAKE AND TOOELE VALLEYS-SOUTHERN WASATCH FRONT- GREAT SALT LAKE DESERT AND MOUNTAINS-WASATCH MOUNTAIN VALLEYS- WASATCH MOUNTAINS I-80 NORTH-WASATCH MOUNTAINS SOUTH OF I-80- WESTERN UINTA MOUNTAINS-WASATCH PLATEAU/BOOK CLIFFS- WESTERN UINTA BASIN-CASTLE COUNTRY-SAN RAFAEL SWELL- SANPETE/SEVIER VALLEYS-WEST CENTRAL UTAH-SOUTHWEST UTAH- UTAHS DIXIE AND ZION NATIONAL PARK-SOUTH CENTRAL UTAH- GLEN CANYON RECREATION AREA/LAKE POWELL-CENTRAL MOUNTAINS- SOUTHERN MOUNTAINS-SOUTHWEST WYOMING- 630 AM MDT MON JUL 23 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO THIRDS OF UTAH ALONG WITH FAR SOUTHWEST WYOMING. .DAY ONE...TODAY AND TONIGHT A VERY MOIST AIRMASS OVER UTAH WILL SPAWN SCATTERED SHOWERS AND THUNDERSTORMS ACROSS THE ENTIRE AREA THROUGH TONIGHT. A FEW OF THE STRONGER THUNDERSTORMS COULD GENERATE LOCALLY HEAVY PRECIPITATION ACROSS THE SOUTHERN THIRD OF THE STATE THIS AFTERNOON AND EVENING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY ABUNDANT MOISTURE WILL REMAIN ACROSS UTAH AND SOUTHWEST WYOMING TUESDAY THROUGH WEDNESDAY. TUESDAY WILL LIKELY BE THE DAY WITH THE GREATEST NUMBER OF THUNDERSTORMS...ALONG WITH THE BEST THREAT FOR FLASH FLOODING FOR SOUTHERN AND CENTRAL UTAH. SLIGHTLY DRIER AIR WILL MOVE INTO EXTREME NORTHWEST UTAH LATE IN THE WEEK. THE REMAINDER OF THE AREA WILL SEE SCATTERED AFTERNOON AND EVENING THUNDERSTORMS...MAINLY OVER AND NEAR THE MOUNTAINS...THROUGH THE COMING WEEKEND. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
The Cedar City radar (KICX), 90 km away, was scanning. The volume nearest the first event began at 11:28 UTC.
2 flash flood. Local standard time, as filed.
Flash Flooding occured just south of the city center in Bloomington, with water, mud, and small boulders across the roadways. In addition, the storm drain was washed out.
Heavy rain caused flash flooding in Sulphur Creek and the Fremont River. The primary damage was in Capitol Reef National Park. A number of stretches of SR 173 and other local roads were covered with mud and rocks, and a small bridge was washed out as well.
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, July 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: 47801, 47810.