Moisture moved back into Southeast Arizona ahead of a trough of low pressure resulting in isolated thunderstorms.
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.
Moisture moved back into Southeast Arizona ahead of a trough of low pressure resulting in isolated thunderstorms.
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 Sep 9, 1:30 PM MST, 3 hours 3 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 130 PM MST TUE SEP 9 2008 .SYNOPSIS...MOISTURE WILL INCREASE THIS WEEK IN ADVANCE OF A TROUGH OF LOW PRESSURE MOVING DOWN THE WEST COAST. THIS WILL BRING AN INCREASED CHANCE OF AFTERNOON AND EVENING THUNDERSTORMS OVER THE NEXT FEW DAYS. EXPECT COOLER DAYTIME TEMPERATURES AS MOISTURE INCREASES. && .DISCUSSION...MOISTURE SURGE EVIDENT ON WATER VAPOR AND VISIBLE IMAGERY AS WELL AS KYUX VWP UP THE GULF THROUGH DESERTS MAINLY WEST AND NORTHWEST OF TUCSON. WESTERLY FLOW BETWEEN THE DEVELOPING PACIFIC COAST TROUGH AND HIGH DEPRESSED SOUTH AND EAST OF US WILL BRING THIS INTO PLAY ACROSS THE ENTIRE AREA OVER THE NEXT FEW DAYS. FOR TODAY...SOME MID LEVEL WARMING HAS SLOWED CONVECTIVE DEVELOPMENT UNTIL LATER IN THE AFTERNOON ESPECIALLY FOR VALLEY LOCATIONS...WITH EARLY EVENING BEING FAVORED. SCENARIO GOOD FOR ISOLATED OVERNIGHT CONVECTION AS WELL. DEEPER MOISTURE MORE WIDESPREAD WEDNESDAY. SOME SOUTHERN SPLIT IN ENERGY AS IMPULSE DIGS INTO THE STATE THURSDAY OR SO FOR FURTHER FOCUS TO STORMS. AFTER THAT DRY NORTHWESTERLY FLOW BEHIND EXITING TROUGH AND AHEAD OF BUILDING WEST COAST RIDGE...BUT WE WILL HAVE TO WATCH OUT FOR MOISTURE INPUT FROM DECAYING TROPICAL SYSTEMS. FOR NOW GFS PULLS REMNANTS UP WELL EAST. && .AVIATION...ISOLD TO SCATTERED TSRA/SHRA ACROSS ALL OF SE AZ CONTINUING INTO TONIGHT. LIGHT DIURNALLY DRIVEN SURFACE WINDS INTO TUESDAY. AVIATION DISCUSSION NOT UPDATED FOR TAF AMENDMENTS. && .TWC WATCHES/WARNINGS/ADVISORIES...NONE. WEATHER.GOV/TUCSON
The Tucson radar (KEMX), 100 km away, was scanning. The volume nearest the first event began at 23:34 UTC.
1 thunderstorm wind. Local standard time, as filed.
A tractor trailer truck was blown over at mile marker 350 on Interstate 10. In addition, a nearby power pole was knocked down near the Union Pacific Railroad tracks.
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, September 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: 124928.