1 flash flood, as filed by the National Weather Service.
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 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 29, 2:55 PM MST, 2 hours 5 minutes earlier.
UTAH AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SALT LAKE CITY UT 355 PM MDT TUE JUL 29 2003 .SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN WEST OF THE AREA THROUGH WEDNESDAY...KEEPING NORTHERN SECTIONS DRY AND A MOIST AND UNSTABLE AIRMASS IN PLACE OVER THE EXTREME SOUTH. .DISCUSSION...UPPER HIGH SLIGHTLY NORTH OF WEST OF THE AREA CONTINUES TO KEEP THE NORTHERN HALF OF THE FORECAST AREA MAINLY DRY FOR THE NEXT COUPLE OF DAYS...WHILE THE SOUTH REMAINS MOIST AND UNSTABLE. CONVECTION THIS AFTERNOON IS CONFINED TO HIGHER TERRAIN AND NEARBY VALLEYS SOUTH OF THE WASATCH PLATEAU...AS DRIER AIR HAS MOVED INTO THE NORTH. BETTER CU DEVELOPMENT IN THE NORTH COMPARED TO PREVIOUS DAYS HOWEVER...BUT ALL PRETTY FLAT. SOME HEAVY RAIN IN THE SOUTH YET AGAIN TODAY SO EXPECT TO MONITOR THAT CLOSELY THIS EVENING. STORMS MOVING AT A FAIR CLIP BUT NEW DEVELOPMENT FORMING OVER PREVIOUSLY SOAKED AREAS. EXTREME SOUTH MAY SEE SOME WEAK TRW AFTER MIDNIGHT...OTHERWISE EVERYTHING SHOULD QUIET DOWN NOT LONG AFTER SUNSET. HIGH DOESNT CHANGE ITS POSITION MUCH ON WEDNESDAY...BUT MID-LEVEL WINDS IN THE SOUTH WILL WEAKEN AS A RESULT OF WAVE OVER BAJA MOVING FARTHER WEST AND OFF SHORE. MOIST AIRMASS WILL STILL BE IN PLACE TOMORROW OVER THE SOUTH...COMBINED WITH LIGHTER STEERING WINDS MAY MAKE THINGS MORE CONDUCIVE TO HEAVY RAIN IN THE SOUTH. NORTH REMAINS RELATIVELY DRY AGAIN TOMORROW SO EXPECT NOTHING MORE THAN FLAT CU AT BEST. STARTING THURSDAY HIGH BEGINS TO SHIFT EAST SLIGHTLY AS THE WAVE OVER MEXICO IS PICKED UP IN THE WESTERLIES AND CARRIED UP AND ALONG JUST OFF THE CALIFORNIA COAST. THIS WILL HELP MOISTEN UP NORTHERN SECTIONS FROM WEST TO EAST. RIDGE AXIS MOVES THROUGH FRIDAY SO EXPECT SOME WEAK DYNAMICS TO HELP FIRE ACTIVITY IN THE NORTH AS THE AIRMASS MOISTENS UP TO OVER AN INCH PRECIPITABLE WATER IN NORTHWEST UTAH. WAVE CONTINUES TO LIFT OUT SATURDAY AND SUNDAY ACCORDING TO GFS...ECMWF AND UKMET PROGS...BRUSHING THROUGH THE GREAT BASIN. AS IT DOES EXPECT CHANCE POPS ACROSS MOST OF THE AREA WITH SOME OF THE BEST DYNAMICS WEVE HAD IN A WHILE...THEN DRYING OUT IN THE WEST AND SOUTHWEST MONDAY AND TUESDAY BEHIND IT. SLC 0001 CDC 2333 JACKSON .SLC...NONE.
IDZ024-025-UTZ001>021-WYZ021-301300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SALT LAKE CITY UT 700 AM MDT TUE JUL 29 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO-THIRDS OF UTAH...EXTREME SOUTHEAST IDAHO AND EXTREME SOUTHWEST WYOMING .DAY ONE... TODAY SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS PORTIONS OF EXTREME SOUTHERN UTAH LATER TODAY. SOME OF THE STRONGER STORMS COULD PRODUCE LOCALLY HEAVY RAINFALL LATER THIS AFTERNOON AND EVENING. MINOR FLOODING IS POSSIBLE IN THE GLEN CANYON RECREATION AREA AND OVER PORTIONS OF KANE AND GARFIELD COUNTIES. .DAYS TWO THROUGH SEVEN... WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. WCJIN-WYSW
The national radar mosaic for the moment the first event began.
1 flash flood. Local standard time, as filed.
Heavy downpours brought another flash flood to the Gulch area east of Capitol Reef National Park.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2003Every state in 2003This day in weather historyWarnings in Utah, July 2003
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: 5379833.