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 Sep 16, 3:20 PM MST, 10 minutes earlier.
UTAH AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SALT LAKE CITY UT 420 PM MDT SUN SEP 16 2001 SYNOPSIS...AN UPPER LEVEL TROUGH WILL MOVE THROUGH THE CENTRAL INTERMOUNTAIN REGION TONIGHT AND MONDAY. HIGH PRESSURE WILL GRADUALLY BUILD BACK OVER THE AREA MONDAY NIGHT AND TUESDAY... AND PERSIST THROUGH THE WEEK. DISCUSSION...CONVECTION GOT A SLOW START OVER THE NORTH TODAY DUE TO THE CIRRUS SPREADING INTO THE AREA AHEAD OF THE NV TROF...AND IS STILL FAIRLY ISOLATED. THIS SHOULD CHANGE TONIGHT AS THIS FEATURE MOVES INTO OUR FORECAST AREA GENERATING FAIRLY WIDESPREAD PRECIP. NUMEROUS SHOWERS ARE ALREADY POISED ALONG THE NV BORDER AND WILL MOVE INTO WESTERN UTAH DURING THE NEXT FEW HOURS. THE SOUTH WAS RATHER ACTIVE TODAY BUT MOST OF THIS SHOULD DIE OFF AS DAYTIME HEATING ENDS AS IT WILL BE SOUTH OF THE DYNAMICS ASSOCIATED WITH THE TROF. THE TROF AXIS LINGERS OVER THE FORECAST AREA MONDAY AND THERE SHOULD BE ENOUGH INSTABILITY DUE TO COOLING ALOFT FOR SCATTERED ACTIVITY AGAIN...BUT MAINLY MTNS AND EAST. RIDGING DEVELOPS MON NIGHT AND ACTIVITY SHOULD END IN THE EVE. TUE SHOULD BE DRY AS RIDGE MOVES OVER THE AREA. FLAT WESTERLY FLOW WILL PERSIST THRU THE WEEK WITH ANOTHER WEAK SHORT WAVE TROF FOR WED...THEN RIDGE AGAIN AMPLIFIES SAT AHEAD OF DEEPER TROF FORECAST FOR NEXT WEEKEND. MRF NOW DEPICTS THIS FEATURE WEAKER THAN PREV RUN...AND RESOLVES MORE THAN ONE SHORT WAVE WITH THE FIRST ONE EJECTING NEWD LATE SAT OR EARLY SUN. MODEL IS ALSO ABOUT 5 DEGS C WARMER THAN PREV RUN AT 700 MB AND IS QUITE DRY. SO TREND IS TOWARDS A WEAK DRY FRONT SAT NIGHT OR SUN MORNING...AND ANOTHER SLIGHTLY STRONGER DRY FRONT MON. DONT HAVE A LOT OF CONFIDENCE IN EVEN THIS SOLUTION AS I SUSPECT THIS TREND WILL CONTINUE IN SUBSEQUENT MRF RUNS AND THERE MAY NOT BE MUCH OF A TROF LEFT IN THE MODELS BY THE TIME IT GETS INSIDE OF DAY 5. SO FOR NOW, WILL TREND SUN TEMPS DOWNWARD SEVERAL DEGREES BUT WILL KEEP FORECAST DRY. SLC 5320 CDC 2220 WILENSKY .SLC...NONE.
The Cedar City radar (KICX), 128 km away, was scanning. The volume nearest the first event began at 22:27 UTC.
1 flash flood. Local standard time, as filed.
Heavy rain and hail in the Capitol Reef area between Boulder and Burr Trail caused flash flooding that closed and partially washed out a road. The hail was pea-sized, but accumulated to 2 inches in depth.
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, September 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: 5275426.