Heavy rains on the Kimball burn area resulted in flooding.
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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.
Heavy rains on the Kimball burn area resulted in flooding.
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 Aug 16, 9:00 AM MST, 4 hours 50 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SALT LAKE CITY UT 1000 AM MDT THU AUG 16 2007 .SYNOPSIS...HIGH PRESSURE TO OUR EAST WILL WEAKEN OVER THE NEXT COUPLE OF DAYS AS AN UPPER TROUGH MOVES INTO THE PACIFIC NORTHWEST STATES. THIS WILL BRING AN INCREASING SOUTHWEST FLOW TO UTAH OVER THE WEEKEND AND A GRADUAL DRYING TREND INTO EARLY NEXT WEEK. && .DISCUSSION...LIGHT SOUTHERLY FLOW BETWEEN THE CENTRAL US HIGH AND THE OFFSHORE TROF IS OVER UTAH TODAY. A FAIRLY MOIST AIRMASS IS IN PLACE AREA-WIDE AND BOTH MODELS INDICATE A LOW-MID LEVEL FEATURE OVER SRN UT THIS MORNING THAT LIFTS THRU CENTRAL/NRN UT LATE TODAY AND TONIGHT...LIKELY ENHANCING THE CONVECTION. FLOW VEERS A BIT ON FRI BUT REMAINS MOIST AND NAM FINDS ANOTHER WEAK SHORT WAVE TO LIFT THRU NRN UT LATE IN THE DAY AND THROUGH THE EVE. THE FLOW INCREASES SAT AS THE ERN PAC TROF BEGINS TO EDGE INLAND BUT BOTH MODELS INDICATE THAT ANY DRYING WILL HOLD OFF TIL SUN. SO WITH THE INCREASING FLOW ALOFT AND RESULTANT INCREASING SPEED SHEAR...ISOLATED STRONG STORMS COULD OCCUR OVER NRN UT SAT AFTERNOON. 06Z GFS WAS DRYING OUT THE FORECAST AREA ON SUN AS FLOW CONTINUES TO VEER TO MORE WESTERLY BUT NEW NAM KEEPS FLOW MORE SWLY AND MOISTURE IN PLACE. FOR NOW...THE POTENTIAL INCREASE IN TSTM COVERAGE TODAY WILL BE MOST LIKELY THIS EVE SO WILL LEAVE FORECASTS AS IS FOR NOW AND WILL SEE IF ANY COVERAGE CHANGES ARE STILL NEEDED THIS AFTN. && .AVIATION...AN INCREASING SOUTHERLY GRADIENT IS EXPECTED TO DELAY THE DAILY WIND SHIFT TO THE NORTHWEST AT THE KSLC TERMINAL UNTIL AT LEAST 21Z TODAY...AND THERE IS A 40 PERCENT CHANCE THAT WINDS WILL REMAIN SOUTHERLY THROUGHOUT THE DAY. THE CHANCE OF A THUNDERSTORM DIRECTLY IMPACTING THE SLC TERMINAL IS LESS THAN 10 PERCENT TODAY...BUT THERE IS A 20 PERCENT CHANCE THAT OUTFLOW FROM NEARBY THUNDERSTORMS WILL RESULT IN PERIODS OF GUSTY WINDS WITH ERRATIC DIRECTIONS LATE THIS AFTERNOON. && .FIRE WEATHER...THE HIGH CENTER NEAR THE FOUR CORNERS REGION WILL KEEP MOISTURE MOVING NORTH OVER THE DISTRICT FOR THE NEXT COUPLE OF DAYS. SCATTERED AFTERNOON CONVECTION WILL DEVELOP ONCE AGAIN THIS AFTERNOON...WITH THE GREATEST COVERAGE EXPECTED OVER CENTRAL AND SOUTHEASTERN UTAH WHERE MOISTURE IS HIGHEST. LOCALLY HEAVY RAINFALL AND FLASH FLOODING IS POSSIBLE WITH THESE STORMS. WINDS WILL BE GENERALLY LIGHT AND TERRAIN DRIVEN TODAY...THOUGH GUSTY WINDS MAY OCCUR IN ASSOCIATION WITH ANY THUNDERSTORMS THAT FORM. THE FLOW ALOFT IS EXPECTED TO INCREASE TOMORROW AS A TROUGH MOVES ONSHORE ALONG THE PACIFIC NORTHWEST COAST...CAUSING AN INCREASE IN WINDS INTO THE WEEKEND. IF HUMIDITIES DROP BELOW 15 PERCENT ON SATURDAY...A RED FLAG WARNING WOULD BE WARRANTED...HOWEVER ONLY NORTHWEST UTAH LOOKS TO BE AFFECTED AT THIS TIME. && .SLC WATCHES/WARNINGS/ADVISORIES... UT...NONE. WY...NONE. && WILENSKY/YOUNG 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 556 AM MDT THU AUG 16 2007 UTZ001>016-019>021-517-518-WYZ021-171200- 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- 556 AM MDT THU AUG 16 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL UTAH... NORTHERN UTAH...SOUTHERN UTAH...SOUTHWEST UTAH AND SOUTHWEST WYOMING. .DAY ONE...TODAY AND TONIGHT WITH A MOIST AIRMASS IN PLACE...SHOWERS AND THUNDERSTORMS WILL AGAIN DEVELOP ACROSS THE OUTLOOK AREA TODAY. THE GREATEST COVERAGE WILL BE ACROSS SOUTHEASTERN UTAH...WHERE A COUPLE OF STORMS MAY PRODUCE HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SHOWERS AND THUNDERSTORMS WILL BE SCATTERED ABOUT THE REGION FRIDAY AND SATURDAY...WITH LOCALLY HEAVY RAINFALL AMOUNTS POSSIBLE. A FEW STORMS ON SATURDAY MAY BECOME SEVERE. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. BARJENBRUCH FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
The Salt Lake City radar (KMTX), 75 km away, was scanning. The volume nearest the first event began at 20:51 UTC.
1 flash flood. Local standard time, as filed.
There was a small debris and mudflow across SR 136 near Grantsville; the mud and debris originated from the Kimball burn scar.
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, August 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: 55544.