Widespread heavy rain resulted in many dry washes and streambeds to flood. Mud and rockslides caused road closures in the Cedar Breaks range.
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 episode as NWS SLC wrote it up.
Widespread heavy rain resulted in many dry washes and streambeds to flood. Mud and rockslides caused road closures in the Cedar Breaks range. Radar estimates of 2-4 inches were common.
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 30, 7:10 PM MST, 10 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SALT LAKE CITY UT 810 PM MDT SUN JUL 30 2006 .SYNOPSIS...UPPER HIGH WILL CONTINUE TO MOVE EAST AND SETTLE OVER THE PLAINS STATES OVER THE NEXT COUPLE OF DAYS. AIRMASS WILL REMAIN MOIST INTO THE EARLY PART OF THE WEEK. A PACIFIC COLD FRONT WILL MOVE THROUGH NORTHERN UTAH BY EARLY TUESDAY. && .DISCUSSION...UPPER TROUGH AND ASSOCIATED LOW LEVEL BOUNDARY WIND SHIFT CONTINUES TO PRESS ACROSS CENTRAL UTAH THIS EVENING. THIS BOUNDARY SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS TO NORTHEAST THIS MORNING AND TIMED WITH THE HEATING OF THE DAY BROUGHT SCATTERED THUNDERSTORMS TO UTAH THIS AFTERNOON FROM PROVO TO EVANSTON SOUTHWARD. NORTHWEST OF THIS LINE THE AIR MASS STABILIZED THROUGH THE AFTERNOON DUE TO NVA DRYING AND SUBSIDENCE IN THE WAKE OF THE UPPER TROUGH. STRONGEST STORMS ASSOCIATED WITH TERRAIN AND AIDED FROM UPPER LEVEL TROUGH OCCURRED FROM LOA TO BRIAN HEAD AND ACROSS MUCH OF KANE COUNTY. FLASH FLOOD WARNING CONTINUES FOR KANE COUNTY THIS HOUR WHERE RADAR ESTIMATES A LARGE ARE OF 1 TO 2 INCHES WITH MANY 3+ INCH MAXES OVER THE GRAND STAIRCASE. CURRENTLY STRONG STORMS CONTINUE TO PRODUCE HEAVY RAIN NEAR KODACHROME AND NEAR CEDAR BREAKS...JUST SOUTH OF A LOW LEVEL BOUNDARY OBSERVED FROM THE SAN RAFAEL SWELL TO SOUTHWEST UTAH...AND AHEAD OF THE UPPER TROUGH AXIS. ACTIVITY WILL GRADUALLY DECREASE WITH UPPER TROUGH PRESSING EAST AND LOSS OF HEATING...BUT SOME ACTIVITY PERSISTING IN THE SOUTHEAST PART OF UTAH. A SEPARATE SHORT WAVE TROUGH IS OVER EASTERN NEVADA...THIS IS PROGGED TO LIFT NORTHEAST ACROSS WESTERN UTAH LATER TONIGHT AND BACK THE MEAN FLOW TO SOUTHWEST. THIS WILL GENERATE SCATTERED CONVECTION OVER WESTERN UTAH THIS EVENING...WITH PRECIPITABLE WATER PLUME RETURNING BACK TO THE IDAHO BORDER AND GSL REGION LATE TONIGHT AND MONDAY MORNING. UPDATED EARLIER TO REMOVE WEATHER IN NORTHWEST UTAH EXCEPT NEAR THE WYOMING AND NEVADA BORDERS. LEFT LOW CHANCES AFTER MIDNIGHT FOR THE RETURN SURGE OF MOISTURE AFTER MIDNIGHT SPREADING NORTH ACROSS NORTHERN UTAH. HOWEVER MOST OF THIS WILL BE MID AND UPPER LEVEL CLOUDS AND SCATTERED CONVECTION MAY HOLD OFF UNTIL LATE TONIGHT AND MONDAY MORNING IN THE NORTH...IT WILL AFFECT THE WESTERN DESERTS TONIGHT. CLOUDS AND SCATTERED PRECIPITATION WILL ADVECT ACROSS NORTHERN UTAH WITH THIS NEXT WAVE OVERNIGHT AND MONDAY MORNING. BROAD PACIFIC TROUGH MOVING INTO THE NORTHWEST COAST WILL DROP A COLD FRONT ACROSS NORTHERN UTAH MONDAY NIGHT. AHEAD OF THIS...SOUTH FLOW ALOFT WILL INCREASE ON MONDAY AND SPREAD MOISTURE BACK TO THE IDAHO BORDER. SIMILAR AIR MASS TEMPERATURES ON MONDAY AND HEATING OF THE DAY WILL REDEVELOP CONVECTION OVER THE SPINE OF UTAH...BUT FASTER MORNING STORMS. THE MORNING SHORT WAVE TROUGH LIFTS ACROSS CENTRAL UTAH AND INTO FAR NORTHERN UTAH BY MIDDAY. MODERATE UPPER TROUGH CROSSES NORTHERN UTAH MONDAY NIGHT WITH GOOD PERIOD OF DYNAMICS AND BAROCLINIC ZONE MONDAY NIGHT AND TUESDAY MORNING ACROSS NORTHERN UTAH. THIS SWEEPS ACROSS THE REST OF UTAH TUESDAY AFTERNOON WITH DRYING FROM THE NORTHWEST. WARMING TREND LATTER HALF OF THE WEEK. && .AVIATION...NORMAL DRAINAGE WIND. 10 PERCENT CHANCE OF SHOWERS LATE TONIGHT AND MONDAY MORNING. && .FIRE WEATHER...DRIER AIR WORKED ITS WAY INTO NORTHWEST SECTIONS THIS AFTERNOON. FARTHER SOUTH DEEP MOISTURE REMAINS AND WETTING RAINS WILL OCCUR WITH ANY STORMS THROUGH MONDAY. COOLER TEMPERATURES WILL FILTER IN FROM NORTHWEST TO SOUTHEAST STARTING MONDAY NIGHT AND ESPECIALLY ON TUESDAY. && .SLC WATCHES/WARNINGS/ADVISORIES... UT...NONE. WY...NONE. && TARDY
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
The Cedar City radar (KICX), 48 km away, was scanning. The volume nearest the first event began at 03:02 UTC.
1 debris flow, 1 flash flood. Local standard time, as filed.
Mud and debris closed SR-14, 6 miles East of Cedar City.
Coal Creek gauge rose from 26 CFS to 1011 CFS in 2 hours.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2006Every state in 2006This day in weather historyWarnings in Utah, July 2006
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: 5525073, 5525074.