1 thunderstorm wind, 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 24, 1:57 PM MST, 1 hour 3 minutes earlier.
UTAH AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SALT LAKE CITY UT 257 PM MDT THU JUL 24 2003 .SYNOPSIS...UTAH WILL BE UNDER A VERY WARM...MOIST AND UNSTABLE SOUTHWEST FLOW THROUGH THE WEEKEND. THE NORTH WILL STABILIZE EARLY NEXT WEEK. .DISCUSSION...MOISTURE CONTINUES TO STREAM NORTH ACROSS THE GREAT BASIN. UTAH STILL ON THE EASTERN EDGE OF MAIN PLUME BUT THAT WILL CHANGE AS THE HIGH GIVES WAY TO THE INCOMING SHORTWAVE ENERGY OVER THE PACIFIC NORTHWEST. TODAY BREEZY SOUTHERLY SURFACE WINDS HAVE DEVELOPED ACROSS WESTERN UTAH. THIS HAS PUSHED THE LAKE BREEZE FRONT INTO IDAHO AND WYOMING...STABILIZING THE NORTHERN PORTIONS OF THE AREA. WEST DESERTS AND EASTERN DESERT BASINS WILL DE-STABILIZE TONIGHT. RELATIVE HUMIDITY REMAINS HIGH ENOUGH THAT NO FIRE WEATHER WARNINGS NEEDED EVEN WITH BREEZY WINDS. MEANWHILE AREA OF THUNDERSTORMS IS MOVING INTO SOUTHWEST UTAH. THESE WILL LIKELY TRACK NORTH ACROSS WESTERN UTAH THROUGH THE NIGHT. DRYING IN ARIZONA ON THE WATER VAPOR LOOP INDICATES SHORTWAVE SUPPORT FOR THAT CLUSTER. FARTHER NORTHWEST A FRONTAL ZONE HAS DEVELOPED OVER SOUTHEAST OREGON AND IDAHO. THIS IS PROGGED TO PUSH TO NORTHWEST UTAH FRIDAY EVENING AND STALL OVER THE LAKE THROUGH SATURDAY MORNING. THIS WILL BE A FOCUSING MECHANISM TO WORK ON AVAILABLE MOISTURE...SUPPORTED BY WEAK JET DYNAMICS. RAISED POPS FOR SATURDAY AND SUNDAY AND LOWERED TEMPERATURES BUT MAY NEED TO FURTHER ADJUST THE GRIDS IN THAT DIRECTION. SUNDAY NIGHT THROUGH THURSDAY...HIGH PRESSURE ALOFT REBOUNDS WEST OF UTAH WITH A NORTHERLY FLOW ALOFT STABILIZING NORTHERN UTAH. DEEP MOISTURE REMAINS ENTRENCHED IN SOUTHERN UTAH SO NEED TO CONTINUE WITH DAILY MENTION OF SHOWERS DOWN SOUTH. SLC 3234 CDC 4222 GIBSON .SLC...NONE.
IDZ024-025-UTZ001>021-WYZ021-251300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SALT LAKE CITY UT 700 AM MDT THU JUL 24 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO-THIRDS OF UTAH...EXTREME SOUTHEAST IDAHO AND EXTREME SOUTHWEST WYOMING .DAY ONE... TODAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN... FRIDAY THROUGH WEDNESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. WCJIN-WYSW
The Cedar City radar (KICX), 66 km away, was scanning. The volume nearest the first event began at 22:01 UTC.
1 thunderstorm wind. Local standard time, as filed.
Thunderstorm outflow winds gusted to 57 mph (50 kts) in St. George, with power lines reported down in Gunlock.
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: 5380328.