Training thunderstorms developed across portions of Cochise County producing flash flooding.
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.
Training thunderstorms developed across portions of Cochise County producing flash flooding.
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 27, 12:55 PM MST, 3 hours 5 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 1255 PM MST SUN JUL 27 2008 .SYNOPSIS...ENOUGH MOISTURE REMAINS ACROSS THE AREA FOR A CHANCE OF SHOWERS AND THUNDERSTORMS THIS EVENING AND TONIGHT. A DRIER WESTERLY FLOW WILL SEE A DECREASE IN SHOWERS AND THUNDERSTORMS FOR MUCH OF THE WORK WEEK WHILE ALLOWING HOTTER TEMPERATURES. && .DISCUSSION...LATEST MODELS CONTINUED TO ADVERTISE AN OVERALL DRYING TREND THE NEXT FEW DAYS AS HIGH PRESSURE STRENGTHENS AND BECOMES WELL ESTABLISHED OVER SOUTHWEST ARIZONA. THIS POSITIONING OF THE HIGH CENTER WILL MAINTAIN A DRY WEST TO NORTHWESTERLY FLOW OVER SOUTHEAST ARIZONA FOR LIMITED SHOWER AND THUNDERSTORM ACTIVITY THIS WEEK. ALONG WITH THE DRYING TREND...TEMPERATURES WILL BE HEATING UP. LATEST MOS GUIDANCE INDICATED THAT HIGHS WILL INCREASE ABOUT 5 DEGREES OVER READINGS OBSERVED IN MOST PLACES YESTERDAY. IN THE MEANTIME...STILL A RATHER MOIST AIRMASS IN PLACE TODAY WITH SCATTERED THUNDERSTORMS THIS AFTERNOON AND EVENING ACROSS FAR SOUTHEAST ARIZONA...MAINLY EAST OF TUCSON. THE 12Z TUS UPPER-AIR SOUNDING SHOWED SOME DRYING ABOVE 10KFT BUT STILL A RATHER MOIST LOW-LEVEL PROFILE WITH A PWATER VALUE OF 1.74 INCHES. NOT TOO MUCH WARMING ALOFT YET...SO OVERALL THE THERMODYNAMICS LOOK GOOD FOR A FEW STORMS IN THE VALLEYS BASED ON SURFACE HEATING EVEN WITH A NORTHWEST STEERING FLOW. THUS...WILL KEEP ISOLATED POP VALUES IN THE FORECAST FOR REST OF TODAY FROM TUCSON WESTWARD. && .HYDROLOGY...THE MAIN CONCERN THROUGH THIS EVENING WILL BE THE UPPER GILA AND THE SAN FRANCISCO RIVERS AS HEAVY RAINFALL OVER A LARGE AREA LAST EVENING AND OVERNIGHT RESULTED IN SIGNIFICANT FLOWS. THE GILA RIVER AT DUNCAN CRESTED AROUND 230 AM MST THIS MORNING AT 14.23 FEET JUST BELOW FLOOD STAGE. THE GILA AT CLIFTON CRESTED AROUND 1120 AM MST BELOW BANKFULL AND THE GAGE AT SOLOMON WAS APPROACHING 11 FEET. STILL EXPECT THE SOLOMON POINT TO CREST BY 2 PM MST BELOW BANKFULL. RFC MODEL GUIDANCE KEEPS ALL GILA RIVER GAGES BELOW FLOOD STAGE FOR TODAY. HOWEVER...WILL NEED TO MONITOR CONDITIONS CLOSELY BECAUSE OF THE POTENTIAL FOR ADDITIONAL RAINFALL IN THE HEADWATERS THROUGH THE EVENING. && .AVIATION...ISOLATED SHOWERS AND THUNDERSTORMS EASTERN AREAS THIS MORNING...OTHERWISE DEBRIS CLOUDS WILL GRADUALLY CLEAR. ANOTHER CHANCE OF SHOWERS AND THUNDERSTORMS THRU THIS EVENING. LCL CIGS BKN020 WITH VSBYS BELOW 2 MILES IN SHRA+. AVIATION DISCUSSION NOT UPDATED FOR TAF AMENDMENTS. && .TWC WATCHES/WARNINGS/ADVISORIES...NONE. WEATHER.GOV/TUCSON
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TUCSON AZ 912 PM MST SAT JUL 26 2008 AZZ033-271400- TUCSON METRO/MARANA/GREEN VALLEY- 912 PM MST SAT JUL 26 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST ARIZONA. .DAY ONE...TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY RAIN...WILL MOVE RAPIDLY THROUGH THE AREA TONIGHT. VERY LOCALIZED HEAVY RAIN COULD LEAD TO SOME BRIEF FLOODING CONCERNS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AZZ019-030-034-035-271400- NORTHERN GREENLEE COUNTY-UPPER GILA RIVER VALLEY- SANTA CRUZ COUNTY-COCHISE COUNTY- 912 PM MST SAT JUL 26 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST ARIZONA. .DAY ONE...TONIGHT ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY RAIN...WILL MOVE RAPIDLY THROUGH THE AREA TONIGHT. VERY LOCALIZED HEAVY RAIN COULD LEAD TO SOME BRIEF FLOODING CONCERNS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AZZ029-032-271400- SOUTHEAST PINAL COUNTY-TOHONO OODHAM NATION- 912 PM MST SAT JUL 26 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARIZONA. .DAY ONE...TONIGHT ISOLATED SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY RAIN...WILL MOVE RAPIDLY THROUGH THE AREA TONIGHT. VERY LOCALIZED HEAVY RAIN COULD LEAD TO SOME BRIEF FLOODING CONCERNS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AZZ031-271400- WESTERN PIMA COUNTY- 912 PM MST SAT JUL 26 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARIZONA. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. WEATHER.GOV/TUCSON
The Tucson radar (KEMX), 70 km away, was scanning. The volume nearest the first event began at 23:00 UTC.
1 flash flood. Local standard time, as filed.
Heavy rainfall occurred at Coronado National Memorial causing flash flooding as washes overflowing the roadway causing significant damage.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2008Every state in 2008This day in weather historyWarnings in Arizona, July 2008
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: 107735.