2 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 2 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 Tucson, AZ wrote its last area forecast discussion before the first event at Jul 29, 2:20 PM MST, 2 hours 40 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 220 PM MST SAT JUL 29 2006 .SYNOPSIS...THE COMBINATION OF A VERY MOIST AIR MASS AND NEARLY STATIONARY LOW PRESSURE SYSTEM OVER WEST CENTRAL NEW MEXICO WILL RESULT IN MORE RAINFALL ACROSS SOUTHEAST ARIZONA. THIS UPPER LOW WILL EVENTUALLY TRACK EAST OF THE REGION...BUT UNTIL THEN FLASH FLOOD AND RIVER FLOODING WILL BE A CONCERN THROUGH MONDAY. && .DISCUSSION...FLASH FLOOD AND RIVER FLOODING WILL BE THE MAIN CONCERNS THROUGH AT LEAST MONDAY AS A SLOW MOVING UPPER LOW INTERACTS WITH A VERY MOIST AIRMASS OVER ARIZONA. SEVERAL AREAS LAST NIGHT AND EARLIER THIS MORNING RECEIVED ANYWHERE FROM .5 OF AN INCH TO OVER 3.0 INCHES IN A 12 HOUR PERIOD. REFER TO THE LATEST RAINFALL AMOUNTS UNDER AWIPS HEADER PHXPNSTWC OR WMO HEADER NOUS45 FOR SPECIFIC 12 HOUR TOTALS. NEEDLESS TO SAY...THIS HEAVY RAINFALL RESULTED IN RUNOFF PROBLEMS WITH SEVERAL CITY AND COUNTY ROADS CLOSED DUE TO THE FLOODED LOW WATER CROSSINGS. AS OF 2 PM MST...RADAR INDICATED THAT MOST OF THE RAIN SHOWERS HAD ENDED OR DIMINISHED IN AREAL COVERAGE. HOWEVER...THIS BREAK IN THE RAINFALL SHOULD NOT LAST FOR LONG. LATEST MODELS WERE IN AGREEMENT WITH KEEPING RAIN CHANCES RATHER HIGH FOR SOUTHEAST ARIZONA THROUGH MONDAY...ALTHOUGH THE DETAILS IN THE NAM AND GFS SOLUTIONS WERE DIFFERENT. THE NAM SUGGESTED THAT AN INVERTED TROUGH OVER MEXICO WILL PLAY A MORE IMPORTANT ROLE IN OUR WEATHER THAN THE UPPER LOW SPINNING OVER WEST CENTRAL NEW MEXICO. THE NAM MOVES THIS INVERTED TROUGH NORTHWARD TONIGHT THROUGH EARLY MONDAY. THIS EVENTUALLY KICKS THE UPPER LOW OVER NEW MEXICO EASTWARD. ON THE OTHER HAND...THE GFS MODEL KEEPS THE INVERTED TROUGH OVER MEXICO WITH THE UPPER LOW OVER WEST CENTRAL NEW MEXICO REMAINING SOMEWHAT STATIONARY THROUGH MONDAY MORNING. AT ANY RATE...BOTH MODELS INDICATED A CONTINUED THREAT OF HEAVY RAINFALL THROUGH AT LEAST EARLY MONDAY. THE GENERAL TREND FOR THE HIGHEST RAIN CHANCES HAS BEEN DURING THE LATE EVENING... OVERNIGHT AND INTO THE EARLY MORNING HOURS. THIS TREND WILL LIKELY CONTINUE FOR THE REMAINDER OF THIS EVENT. FOR NOW...WILL EXTEND THE FLASH FLOOD WATCH THROUGH SUNDAY AND ISSUE A FLOOD WATCH FOR SOUTHEAST PINAL COUNTY TO COVER RIVER FLOOD PROBLEMS THERE. REFER TO WMO HEADER WGUS65 OR AWIPS HEADER PHXFFATWC FOR INFO ON THE WATCHES. ALSO...REFER TO WMO HEADER WGUS45 OR PHXFLWTWC FOR RIVER FLOOD WARNINGS. && .AVIATION...TAFS AND TWEBS ADEQUATELY COVER ALL SIGNIFICANT WEATHER AT KTUS. && .TWC WATCHES/WARNINGS/ADVISORIES...FLASH FLOOD WATCH PUBLIC ZONES AZZ019-030>035 UNTIL 8 PM MST SUNDAY EVENING. FLOOD WATCH PUBLIC ZONE AZZ029 UNTIL 8 PM MST SUNDAY EVENING. && WEATHER.GOV/TUCSON
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TUCSON AZ 307 PM MST SAT JUL 29 2006 AZZ019-030>035-301030- NORTHERN GREENLEE COUNTY-UPPER GILA RIVER VALLEY- WESTERN PIMA COUNTY-TOHONO OODHAM NATION- TUCSON METRO/MARANA/GREEN VALLEY-SANTA CRUZ COUNTY-COCHISE COUNTY- 307 PM MST SAT JUL 29 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARIZONA AND SOUTHEAST ARIZONA. ...FLASH FLOOD WATCH UNTIL 8 PM MST SUNDAY EVENING... .DAY ONE...TONIGHT ALTHOUGH THE RAIN HAD DIMINISHED ACROSS THE AREA EARLY THIS AFTERNOON...A VERY MOIST AIR MASS COMBINED WITH AN UPPER LOW OVER WEST CENTRAL NEW MEXICO WILL RESULT IN MORE RAINFALL TONIGHT. RAINFALL THE PAST FEW DAYS HAD RESULTED IN SATURATED SOILS AND FLOWING WASHES ACROSS MUCH OF SOUTHEAST ARIZONA. ANY ADDITIONAL RAINFALL TONIGHT WILL LIKELY CAUSE FLOODING PROBLEMS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THE COMBINATION OF A VERY MOIST AIR MASS AND NEARLY STATIONARY LOW PRESSURE SYSTEM OVER WEST CENTRAL NEW MEXICO WILL RESULT IN MORE RAINFALL ACROSS SOUTHEAST ARIZONA. THIS UPPER LOW WILL EVENTUALLY TRACK EAST OF THE REGION...BUT UNTIL THEN FLASH FLOOD AND RIVER FLOODING WILL BE A CONCERN THROUGH MONDAY. A MORE TYPICAL THUNDERSTORM PATTERN CAN BE EXPECTED TUESDAY THROUGH FRIDAY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AZZ029-301030- SOUTHEAST PINAL COUNTY- 307 PM MST SAT JUL 29 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARIZONA. ...FLOOD WATCH IN EFFECT UNTIL 8 PM MST SUNDAY... .DAY ONE...TONIGHT HEAVY RAINFALL FROM LAST NIGHT AND THE PAST FEW DAYS HAD RESULTED IN SIGNIFICANT FLOWS ON THE GILA...SANTA CRUZ...AND SAN PEDRO RIVERS TODAY. ADDITIONAL RAINFALL TONIGHT AND EARLY SUNDAY MAY CAUSE SOME PEAKS IN THE FLOW THROUGH 8 PM SUNDAY EVENING. PERSONS AROUND CHUICHU ADN ELOY SHOULD MONITOR CONDITIONS ON THE SANTA CRUZ CLOSELY. ALSO PERSONS AROUND MAMMOTH NEAR THE SAN PEDRO RIVER...ALONG THE ARAVAIPA CREEK...AND NEAR KELVIN ON THE GILA RIVER SHOULD MONITOR FLOWS CLOSELY TONIGHT AND EARLY MONDAY. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THE COMBINATION OF A VERY MOIST AIR MASS AND NEARLY STATIONARY LOW PRESSURE SYSTEM OVER WEST CENTRAL NEW MEXICO WILL RESULT IN MORE RAINFALL ACROSS SOUTHEAST ARIZONA. THIS UPPER LOW WILL EVENTUALLY TRACK EAST OF THE REGION...BUT UNTIL THEN FLASH FLOOD AND RIVER FLOODING WILL BE A CONCERN THROUGH MONDAY. A MORE TYPICAL THUNDERSTORM PATTERN CAN BE EXPECTED TUESDAY THROUGH FRIDAY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The Tucson radar (KEMX), 112 km away, was scanning. The volume nearest the first event began at 00:02 UTC.
2 flash flood. Local standard time, as filed.
Numerous roads were closed due to flooding across the Tucson Metro Area. There was also a report that there were several swift water rescues on the east side of the Tucson Metro Area due to vehicles becoming stuck in flooded roadways.
A trained spotter reported that 2 feet of water was flowing over Route 86. Route 86 was impassable from mile post 97 to mile post 108.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2006Every state in 2006This day in weather historyWarnings in Arizona, 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: 5522686, 5522685.