1 flash flood, as filed by the National Weather Service.
Every event with a place to put it. 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 Tucson, AZ wrote its last area forecast discussion before the first event at Aug 8, 1:54 PM MST, 46 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 154 PM MST MON AUG 8 2005 .SYNOPSIS...ABUNDANT MOISTURE WILL REMAIN OVER SOUTHEAST ARIZONA THIS WEEK AS AN EAST TO SOUTHEAST FLOW PREVAILS. THUS EXPECT SCATTERED THUNDERSTORMS TO CONTINUE INTO NEXT WEEKEND. && .DISCUSSION...SLOW-MOVING TSTMS HAVE INDEED FIRED WITH ONLY A COUPLE OF HOURS OF SUNSHINE TODAY. HOWEVER THEY HAVE BEEN EITHER STAYING NEAR THE MOUNTAINS OR TRYING TO TRAVEL ALONG SHARPENING DIFFERENTIAL HEATING BOUNDARIES. AS MENTIONED EARLIER...UPPER LEVEL SUPPORT REMAINS DECENT WITH SEVERAL WEAK DISTURBANCES TO WORK ON. GIVEN OUR MOIST ADIABATIC PROFILE...IT WILL NOT TAKE MUCH TO KEEP AT LEAST SOME TSTMS GOING WELL INTO THE NIGHT. ONE POTENTIALLY IMPORTANT TREND SINCE NOON IS THAT ANVILS HAVE EITHER BEEN STATIONARY OR DRIFTING NW WITH THE CELLS. THIS HAS CAUSED A FEW OF THEM TO EITHER BACKBUILD OR NOT TRAVEL VERY FAR NW BEFORE WEAKENING. HAVE DEBATED ALL DAY ABOUT ISSUING A WATCH...BUT THE COVERAGE IS SIMPLY NOT COMING TOGETHER ENOUGH FOR WIDESPREAD PROBLEMS. INSTEAD...WELL MAINTAIN +RA WORDING AND FOCUS THE HIGHEST POPS OVER CENTRAL PIMA WHERE THINGS APPEAR TO BE COMING TOGETHER THE BEST. WE SEE NO REASON TO BACK OFF THE MID-HIGH GRADE MONSOON FORECAST ANY TIME SOON. DEPENDING ON HOW WIDESPREAD ACTIVITY IS TONIGHT...TUE COULD BE QUITE ACTIVE AS THE UPPER LEVELS DRY OUT SLIGHTLY BUT REMAIN DIFFLUENT WITH LOW STATIC STABILITY. AS IT OCCASIONALLY DOES IN EARLY AUG...THE GFS TRIED OVER THE WEEKEND TO SELL US A BILL OF GOODS BY PUSHING A DECENT AND DRYING TROUGH INLAND LATER IN THE WEEK. WE DID NOT BUY INTO IT...AND THAT WAS A GOOD THING. THE LATEST GFS NOW AGREES WITH THE UKMET AND ECMWF IN LIFTING THE TROUGH WELL TO OUR N AND LEAVING A MEANDERING UPPER HIGH OVER N AZ AND/OR N NM. DRIER AIR DOES TRY TO PUSH INTO SE AZ WED ON BOTH THE 12Z GFS AND ETA...BUT FROM THE E AND ONLY ABOVE 500MB. MEANWHILE THE LOW LEVELS SHOW NO SIGN OF DRYING OUT THROUGH DAY 7. WE MAY INDEED LOSE SOME COVERAGE STARTING WED...BUT IF ANYTHING WE MAY ACTUALLY GAIN SOME INTENSITY AND ORGANIZATION AS THE VERY WEAK MEANDERING FLOW BECOME A BIT STRONGER OUT OF THE E-SE. WILL CONTINUE WITH SLIGHTLY ABOVE CLIMO POPS UNTIL WE SEE EMPHATIC DRYING ACTUALLY SHOW ITSELF. && .AVIATION...TAF AND TWEBS ADEQUATELY COVER ALL SIGNIFICANT WEATHER AT KTUS. HAVE BEGUN TO CARRY MOUNTAINTOP OBSCURATIONS DUE TO THE UNUSUALLY LOW CUMULUS CLOUD BASES. && .TWC WATCHES/WARNINGS/ADVISORIES...NONE. && PYTLAK WEATHER.GOV/TUCSON
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TUCSON AZ 1140 AM MST MON AUG 8 2005 AZZ019-029>035-091800- NORTHERN GREENLEE COUNTY-SOUTHEAST PINAL COUNTY- UPPER GILA RIVER VALLEY-WESTERN PIMA COUNTY-TOHONO OODHAM NATION- TUCSON METRO/MARANA/GREEN VALLEY-SANTA CRUZ COUNTY-COCHISE COUNTY- 1140 AM MST MON AUG 8 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST ARIZONA. .DAY ONE...TODAY AND TONIGHT SYNOPSIS...THUNDERSTORMS ALREADY DEVELOPING OVER THE HIGHER TERRAIN LATE THIS MORNING...ESPECIALLY OVER THE CATALINAS. STORMS ARE DRIFTING TO THE NORTH...WHILE BACK BUILDING SOUTH TOWARDS. ACTIVITY MAY SHIFT INTO THE VALLEYS AND FAR WESTERN DESERTS BY THE LATE AFTERNOON AND EARLY EVENING. THE MAIN THREAT WILL BE LOCALIZED FLASH FLOODING...ESPECIALLY ACROSS PIMA COUNTY AND WESTERN GRAHAM COUNTY. WHERE SATURATED SOILS WILL CAUSE ANY ADDITIONAL RAINFALL TO RAPIDLY RUNOFF INTO WASHES ALREADY OCCUPIED BY PONDED OR RUNNING WATER. DISCUSSION...THE LATEST PRECIPITABLE WATER IMAGERY INDICATED DEEP MOISTURE OVER THE REGION WITH VALUES FROM 1.5-2.0 INCHES...WITH A MOISTURE BOUNDARY SET UP OVER CENTRAL GRAHAM AND WESTERN COCHISE COUNTY. AN AREA OF DIFFLUENT FLOW REMAINS ACROSS SOUTH CENTRAL ARIZONA BETWEEN UPPER HIGH OVER WESTERN NEW MEXICO AND INVERTED TROUGH ALONG THE GULF OF CALIFORNIA INTO SRN CALIFORNIA. A COUPLE OF MESOSCALE FEATURES OF NOTE SHOWING UP ON VISIBLE IMAGERY...ONE NEAR CASA GRANDE WITH A CONVERGENCE BOUNDARY SOUTHEAST OVER THE CATALINAS AND RINCONS AND ANOTHER APPROACHING CABROCA SONORA. THE LATER IS ENHANCING ACTIVITY OVER SANTA CRUZ COUNTY AND COULD SERVE TO ENHANCE ACTION OVER PIMA COUNTY THIS EVENING. NO 12Z SOUNDING WAS AVAILABLE FROM KTUS...HOWEVER REQUESTED SPECIAL 18Z RUN SHOULD SHED FURTHER LIGHT ON CONVECTIVE EVOLUTION THIS AFTERNOON. EXPECT TO SEE A LOW FLOW AND MODERATELY UNSTABLE PROFILE. THIS SHOULD GIVE RISE TO MOSTLY PULSE BACK BUILDING CELLS...WITH ISOLATED MULTI CELL CLUSTERS...ESPECIALLY NEAR OUTFLOWS. SLOW NORTH MOVEMENT OF ACTIVITY WILL PROVIDE A HEIGHTENED CONCERN FOR FLASH FLOODING ACROSS MUCH OF THE FORECAST AREA LATE THIS AFTERNOON AND EVENING AS THE SOILS ARE WELL SATURATED FROM HEAVY RAINFALL THE PAST COUPLE OF DAYS IN MANY AREAS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE WILL BE SCATTERED AFTERNOON AND EVENING THUNDERSTORMS THROUGHOUT THE PERIOD WITH THE POSSIBILITY OF LOCALIZED FLASH FLOODING AND DAMAGING WINDS POSSIBLE. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. SHOEMAKER
The Tucson radar (KEMX), 27 km away, was scanning. The volume nearest the first event began at 21:38 UTC.
1 flash flood. Local standard time, as filed.
A mudslide and flooding event occurred in Madera Canyon after significant rainfall. This area is flood prone due to the fire that occurred only a month before. Large boulders and trees were moved with the mud and water down the mountain, doing damage to one residence. No one was injured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2005Every state in 2005This day in weather historyWarnings in Arizona, August 2005
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: 5469081.