Heavy rain caused a flash flood across a main road in Capitol Reef National Park.
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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.
Heavy rain caused a flash flood across a main road in Capitol Reef National Park.
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 Jun 18, 3:09 PM MST, 1 hour 1 minute earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SALT LAKE CITY UT 409 PM MDT THU JUN 18 2009 .SYNOPSIS...AN UPPER LEVEL TROUGH WILL EXIT THE STATE THIS AFTERNOON...AND STABLE HIGH PRESSURE ALOFT WILL BUILD IN TONIGHT THROUGH FRIDAY. THE NEXT PACIFIC TROUGH WILL MOVE INTO THE GREAT BASIN THIS WEEKEND...MAINTAINING COOL AND UNSETTLED WEATHER ACROSS THE NORTHERN HALF OF UTAH INTO EARLY NEXT WEEK. && .DISCUSSION...REGIONAL WATER VAPOR LOOP POSITIONS THE LATEST TROUGH OVER EASTERN UTAH...WITH A GENERAL EASTWARD PROGRESSION NOTED. RUC80 500MB HEIGHT OVERLAY ON WV LOOP COINCIDES WITH THE DEPRESSED TROPOPAUSE...AND POSITIONS THE TROUGH AXIS NORTH TO SOUTH BISECTING THE STATE. LARGE SCALE SUBSIDENCE IS EVIDENT IN VISIBLE SATELLITE WEST OF THE TROUGH AXIS AS THE APPROACHING SHORT WAVE RIDGE BUILDS IN...WITH MOSTLY SCATTERED FLAT CU EXTENDING WEST THROUGH NEVADA. THAT SAID...A FEW ISOLATED CELLS REMAIN OVER THE WEST DESERT AND FAR NORTH DRIVEN MOSTLY BY DIURNAL HEATING. DYNAMIC LIFT ASSOCIATED WITH THE TROUGH REMAINS GREATEST EAST OF THE TROUGH AXIS...AS DO PWATS PER GOES SATELLITE...WITH THREE QUARTERS TO AND INCH ESTIMATED OVER THE EASTERN HALF OF THE STATE. THE NORTH HAS DRIED SIGNIFICANTLY HOWEVER...WITH THE LOCAL SLC ROOFTOP SOUNDER SHOWING A DROP FROM .92 AT 12Z TO .50 CURRENTLY. ANTICIPATE A GENERAL DECREASE IN AREAL EXTENT OF SHOWERS FROM NORTHWEST TO SOUTHEAST FOR THE REMAINDER OF THE AFTERNOON AS LARGE SCALE SUBSIDENCE AND DRYING OVERCOMES NORMAL DIURNAL HEATING INFLUENCES...WITH RAPID DRYING STATEWIDE BY LATER THIS EVENING. THE APPROACHING SHORT WAVE RIDGE WILL CENTER ITSELF OVER THE STATE FRIDAY BRINGING A MUCH NEEDED REPRIEVE TO THE WET WEATHER AS OF LATE. TEMPS WILL REBOUND NICELY DURING THE DAY FRIDAY...REACHING NEAR NORMAL VALUES STATEWIDE. THIS BREAK HOWEVER WILL BE SHORT LIVED WITH CHANGES EXPECTED AGAIN BY THE WEEKEND. THE NEXT ENERGETIC TROUGH IS POISED TO PROGRESS EASTWARD FROM ITS CURRENT 40N/140W POSITION...WITH 12Z GUIDANCE AGREEING ON LIFTING IT THROUGH THE STATE DURING THE DAY SATURDAY. ALTHOUGH SOME MINOR TIMING DIFFERENCES ARE APPARENT...BOTH EC AND GFS AGREE THAT PRECIP WILL FOCUS ALONG A RATHER STRONG JUNE COLD FRONT...WITH THE GFS THE MORE EXCITED OF THE TWO. AN EVEN COLDER PACIFIC TROUGH WILL BE RIGHT ON ITS HEALS FOR SUNDAY...BUT WILL LIKELY TAKE A MORE NORTHERN TRACK IMPACTING THE NORTHERN ROCKIES AS RETROGRESSION OF THE MEAN RIDGE CENTERED OVER THE SOUTHERN PLAINS SHOULD BEGIN TO RAISE HEIGHTS LOCALLY. IF THIS SCENARIO PLAYS OUT...WE JUST MAY SEE A DRIER SOUTHWEST FLOW SET UP ACROSS THE STATE BY MIDWEEK OF NEXT WEEK. && .AVIATION...VFR CONDITIONS ARE EXPECTED TO PREVAIL AT THE SLC TERMINAL. THERE IS A 30 PERCENT CHANCE THAT A NEARBY THUNDERSTORM WILL GIVE THE AIRPORT GUSTY ERRATIC WINDS BUT ONLY A 10 PERCENT CHANCE THAT A THUNDERSTORM WILL DIRECTLY IMPACT THE AIRFIELD. NORTHWEST WINDS WILL PREVAIL THROUGH AROUND 03Z AND THEN SHIFT TO THE SOUTHEAST. && .SLC WATCHES/WARNINGS/ADVISORIES... UT...NONE. WY...NONE. && PUBLIC...MERRILL AVIATION...YOUNG FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
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
The national radar mosaic for the moment the first event began.
1 flash flood. Local standard time, as filed.
Park rangers reported six to twelve inches of water flowing across the Capitol Gorge Scenic Drive, as well as minor damage to the dirt road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2009Every state in 2009This day in weather historyWarnings in Utah, June 2009
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: 184736.