Strong and slow moving thunderstorms caused excessive rainfall, flash flooding and wind damage across portions of Southeast Arizona.
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 episode as NWS TWC wrote it up.
Strong and slow moving thunderstorms caused excessive rainfall, flash flooding and wind damage across portions of Southeast Arizona.
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 28, 11:32 AM MST, 33 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE TUCSON AZ 1132 AM MST SAT JUL 28 2007 .SYNOPSIS...HIGH PRESSURE CENTERED OVER NEVADA...COMBINED WITH AN UPPER LEVEL LOW OVER THE SOUTHERN PLAINS...WILL RESULT IN A PARTICULARLY ACTIVE MONSOON PATTERN THROUGH AT LEAST MONDAY. THE UPPER LEVEL LOW WILL EVENTUALLY MOVE ACROSS NORTHERN MEXICO BY TUESDAY. ONCE THIS HAPPENS...THERE SHOULD BE A SLIGHT DECREASE IN THUNDERSTORM ACTIVITY. && .UPDATE...HAVE UPDATED FORECAST TO ISSUE FLASH FLOOD WATCH. AS SOON AS WE REACHED THE MID 80S...TSTMS BEGAN TO BLOSSOM AND TRAIN N-S. HAVE ALREADY HAD SEVERAL SPOTTER REPORTS OF 1 INCH/30 MIN RATES IN THE INITIAL SMALL CELLS. SATELLITE TRENDS SHOW SOME SORT OF WEAK MID LEVEL CONVERGENCE BANDS SETTING UP FROM THE E RIM AND GILA COUNTY THROUGH THE HEART OF THE CWA WHICH WILL LIKELY SUPPORT CLUSTERING INTO AN MCS OVER THE NEW FEW HOURS. HAVE KEPT FAR W PIMA OUT FOR NOW SINCE ANY TSTMS ON THE W RIM WOULD HAVE TO TRAVEL SEVERAL HOURS TO REACH THERE...AND THE APPARENT CONVERGENCE AXIS IS FOR THE MOMENT WELL TO THE E. WILL CONTINUE TO MONITOR THAT AREA IN CASE WE NEED TO EXPAND LATER. && .AVIATION...EXPECT DEBRIS CLOUDINESS THROUGH EARLY AFTERNOON WITH ISOLATED THUNDERSTORMS ACROSS PARTS OF SOUTHEAST ARIZONA NEAR KOLS AND KDUG THRU 19Z OR SO. DAYTIME HEATING...COMBINED WITH THE UPPER LOW OVER TEXAS MOVING CLOSER TO THE STATE...WILL RESULT IN FAIRLY WIDESPREAD THUNDERSTORM REDEVELOPMENT THIS AFTERNOON AND TONIGHT. LIKE WE HAVE SEEN ALL WEEK...THE VERY MOIST ATMOSPHERE WILL SUPPORT BRIEF IFR VISIBILITIES AND WIND GUSTS AOA 40KTS. AVIATION DISCUSSION NOT UPDATED FOR TAF AND TWEB AMENDMENTS. && .PREV DISCUSSION...IN A BIT OF A QUANDARY ON A POSSIBLE FLASH FLOOD WATCH AT THE MOMENT. SCATTERED TSTMS IN SANTA CRUZ AND COCHISE...ALONG WITH PLENTY OF DEBRIS CLOUDS...ARE SLOWING OUR HEATING QUITE A BIT THIS MORNING. 12Z UPPER AIR DATA...WHILE SHOWING VERY MOIST AND UNSTABLE SOUNDINGS AT TWC...PSR AND FGZ...ALSO SUGGEST THE BEST DIFFLUENCE AND WEAKEST INERTIAL STABILITY ALOFT RESIDES NW OF US OVER THE WESTERN RIM. BOTH THE NAM12 AND GFS ALSO SUGGEST WE MAY SEE A BIT OF SUBSIDENCE/WARMING ALOFT DURING THE AFTERNOON AS OUR FLOW TRIES TO TURN FROM NNW TO NNE. STILL THE ATMOSPHERE CURRENTLY OVERHEAD IS OBVIOUSLY PRIMED...AND OUR 85F CONVECTIVE TEMP WOULD THEORETICALLY YIELD A CAPE CLOSE TO 2000 J/KG. THE CELLS WE HAVE HAD THIS MORNING HAVE BEEN PRETTY EFFICIENT RAIN PRODUCERS. SINCE WERE GOING TO UPDATE GRIDS/ZONES TO ACCOUNT FOR ONGOING CONVECTION AND CLOUD COVER...WELL ALSO ADD HEAVY RAIN WORDING FOR THIS AFTERNOON/ TONIGHT AND AWAIT FURTHER DEVELOPMENTS. THE OTHER CONCERN IS THAT IS IF WE DO ORGANIZE OFF THE RIM...WE COULD END UP WITH A FLASH FLOOD THREAT WELL INTO THE NIGHT IF THE NAM12 IS RIGHT AND THE BETTER SUPPORT ALOFT SHIFTS INTO S AZ. OUR CURRENT POPS ARE INDICATING THIS POTENTIAL ALREADY. SEEING HOW THINGS DEVELOP THROUGH THIS AFTERNOON SHOULD HELP PINPOINT IF...WHERE...AND HOW LONG WE MAY NEED TO RUN A WATCH. REST OF THE FORECAST IS IN GOOD SHAPE...WITH TEMPS RUNNING BELOW NORMAL IN OUR VERY MOIST ATMOSPHERE...AND POPS SET AT 10-15 PCT ABOVE CLIMO UNTIL THE UPPER LOW SHEARS TO OUR S EARLY IN THE NEW WEEK. && .TWC WATCHES/WARNINGS/ADVISORIES...FLASH FLOOD WATCH UNTIL 9 PM MST ZONES 19/29/30/32/33/34/35. && PYTLAK WEATHER.GOV/TUCSON
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TUCSON AZ 412 AM MST SAT JUL 28 2007 AZZ019-029>035-282200- 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- 412 AM MST SAT JUL 28 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARIZONA AND SOUTHEAST ARIZONA. .DAY ONE...TODAY AND TONIGHT A WEAK DISTURBANCE ROTATING AROUND THE NORTHERN PERIPHERY OF A LOWER PRESSURE SYSTEM SPINNING OVER TEXAS WILL ENTER THE AREA TODAY. THIS FEATURE COMBINED WITH DAYTIME HEATING WILL LEAD TO WIDESPREAD SHOWER AND THUNDERSTORM ACTIVITY. DUE TO A VERY MOIST AIR MASS IN PLACE AND WEAK STEERING WINDS ALOFT...HEAVY DOWNPOURS CAN BE EXPECTED. SOME OF THE STRONGER THUNDERSTORMS MAY PRODUCE STRAIGHT LINE WINDS IN EXCESS OF 58 MPH AS WELL. PERSON ACROSS SOUTHEAST ARIZONA SHOULD REMAIN ALERT TODAY FOR POSSIBLE FLASH FLOOD WATCHES...ADVISORIES...OR WARNINGS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SCATTERED MAINLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS CAN BE EXPECTED THROUGH THE PERIOD. SOME OF THE STORMS MAY PRODUCE HEAVY DOWNPOURS WITH RUNOFF PROBLEMS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The Tucson radar (KEMX), 50 km away, was scanning. The volume nearest the first event began at 19:04 UTC.
8 flash flood, 1 thunderstorm wind. Local standard time, as filed.
Several streets were flooded on the west side of Sierra Vista, including Fry Blvd. and 7th Ave.
Over a dozen trees and at least two power lines were downed near Fort Lowell and Dodge Blvd.
Three men were rescued from swift moving flood waters near Bowie.
Soldier Trail flooding occurred at the Agua Caliente wash.
Sinkhole in road occurred at River Road and Craycroft Road.
A five foot rise in water occurred in one hour on the Santa Cruz River at Congress St.
A four foot rise occurred in 30 minutes in Sabino Canyon at the Sabino Dam stage gauge.
A vehicle was stuck in Brawley wash at Manville Road and Avra Road.
A swift water rescue occurred on the Santa Cruz River north of Cortaro Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2007Every state in 2007This day in weather historyWarnings in Arizona, July 2007
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: 42073, 42081, 42086, 42075, 42077, 42080, 42078, 42097, 42079.