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 Aug 7, 2:25 PM MST, 35 minutes earlier.
UTAH AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SALT LAKE CITY UT 325 PM MDT TUE AUG 7 2001 SYNOPSIS...A SOMEWHAT MOIST AIRMASS WILL REMAIN OVER UTAH THROUGH THE WEEK...THEN DRY OUT OVER THE WEEKEND. DISCUSSION...STRONG UPPER LEVEL HIGH PRESSURE OVER THE REGION WITH FAIRLY MOIST AIRMASS OVER THE STATE. THE AIRMASS OVER NW UTAH APPEARS TO HAVE DRIED OUT DURING THE DAY. CONVECTION HAVING A HARD TIME GETTING GOING OVER THE NW DESPITE 1.07 P.W. THIS MORN AT SLC. SCATTERED CONVECTION ELSEWHERE ACROSS STATE THIS AFTN...ESPECIALLY SE WHERE HAVE HAD LOCAL HEAVY RAINS. NW FLOW SETTING UP OVER THE STATE AS HIGH PRESSURE RIDGE RECENTERS ITSELF NEAR THE UT/NV BORDER TONIGHT. NORMALLY THIS IS A DRY FLOW...BUT MODELS AGREE ON MOISTURE HANGING AROUND...THIS BECAUSE AIRMASS TO THE WEST NOT SO DRY. MOISTURE IS MAKING THE END AROUND...GOING NE THRU CAL AND NV...THEN COMING BACK INTO UTAH NEXT COUPLE OF DAYS. IN GENERAL BEST MOISTURE...INSTABILITY...AND CAPES IN EASTERN UTAH WED AND THU. SLIGHT CHANCE POPS W VALLEYS...CHANCE POPS MTNS AND EAST. ETA HINTS AT MOISTURE INCREASING THURSDAY AS LOW OFF CAL LIFTS NE THRU THE PAC NW. FOR NOW WILL BROAD-BRUSH...BUT WILL NEED TO KEEP AN EYE ON THIS POSSIBILITY. TEMPS STILL ABOVE NORMAL WED AND THU...BUT MODERATING OVER N UTAH AS HEIGHTS AND 700 TEMPS LOWER SLIGHTLY. IN THE EXTENDED...HIGH PRESSURE CENTERS NEAR SOUTHERN BORDER FRIDAY THROUGH SUNDAY...FOR CONTINUATION OF WEAK MONSOONAL PATTERN...SLIGHT CHANCE VALLEYS...AND CHANCE POPS MTNS. N UTAH DRIES OUT BY SUNDAY AND DRYING SPREADS SOUTH BY MONDAY AS HIGH PRESSURE RIDGE SLIDES SOUTH INTO ARIZONA AND ELONGATES EAST-WEST CUTTING OFF THE MONSOON. SLC 2222 CDC 3222 HOGAN .SLC...NONE
The Cedar City radar (KICX), 66 km away, was scanning. The volume nearest the first event began at 21:57 UTC.
1 flash flood. Local standard time, as filed.
Flash flooding occurred in the headwaters above the narrows and below deep creek in Zion National Park. Two hikers had to climb up 30 feet to avoid the 10 foot wall of water.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2001Every state in 2001This day in weather historyWarnings in Utah, August 2001
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: 5275275.