An isolated severe thunderstorm across Santa Cruz county caused damage in the Sonoita area.
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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.
An isolated severe thunderstorm across Santa Cruz county caused damage in the Sonoita area.
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 9, 2:10 PM MST, 50 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 210 PM MST THU AUG 9 2007 .SYNOPSIS...MOISTURE WILL INCREASE ACROSS SOUTHEAST ARIZONA INTO THE WEEKEND AS A FAVORABLE FLOW RETURNS. THUS EXPECT THE DAILY CYCLE OF MAINLY AFTERNOON AND EVENING THUNDERSTORMS INTO NEXT WEEK. DAYTIME HIGH TEMPERATURES WILL BE NEAR OR SLIGHTLY ABOVE NORMAL INTO EARLY NEXT WEEK. && .DISCUSSION...KEMX WSR-88D DETECTED SCATTERED 35-55 DBZ ECHOES OVER ERN SANTA CRUZ AND PORTIONS OF WRN COCHISE COUNTIES AT 2105Z. STRONGEST CELLS WERE VICINITY SONOITA...PARKER CANYON LAKE...AND THE DRAGOON MTNS. OTHER STRONG CELLS WERE DETECTED OVER NRN SONORA SE OF KOLS AND NEAR THE FAR SE AZ/SW NM BORDER REGION. CELL MOVEMENT WAS GENERALLY NW AROUND 10 KTS. THE REST OF SE AZ WAS VOID OF PRECIP ECHOES. SATELLITE IMAGERY INDICATED CYCLONIC CIRCULATION FEATURE MOVING NWWD OVER E CENTRAL SONORA. BASED ON SATELLITE IMAGERY AND RADAR TRENDS...HAVE OPTED TO INCREASE POPS INTO LOW-CHANCE CATEGORY THIS EVENING FROM THE TUCSON VICINITY SEWD. GIVEN THE DRIER NEAR-SURFACE ENVIRONMENT...POTENTIAL FOR WIND GUSTS TO AROUND 45 KTS OR SO MAY OCCUR EARLY THIS EVENING ASSOCIATED WITH THE STRONGEST TSTMS. OTHERWISE LOCALLY HEAVY RAINFALL ALSO A THREAT FROM THE STRONGEST CELLS. PER COORD WITH WFO PSR...ALSO OPTED TO INTRODUCE SLIGHT CHANCE OF SHOWERS/TSTMS AFTER MIDNIGHT ALL ZONES WITH BELIEF THAT CONVECTIVE COMPLEX DEVELOPS JUST SOUTH OF THIS FORECAST AREA THIS EVENING. MOISTURE EXPECTED TO INCREASE ACROSS SE AZ FRI AS GENERALLY SELY MID-LEVEL FLOW PREVAILS. 09/12Z GFS STILL SIMILAR WITH REGARD TO PREVIOUS SOLUTIONS IN THAT FRI AND PERHAPS SAT MAY BE A FAIRLY ACTIVE CONVECTIVE PERIOD. ONE SCENARIO IS FOR LARGE CONVECTIVE COMPLEXES TO DEVELOP OVER NRN SONORA DURING THE LATE AFTERNOON AND EVENING PERIODS...AS MENTIONED ABOVE PERHAPS AS EARLY AS THIS EVENING...WITH CONVECTIVE OUTFLOWS ADVANCING NWD AND SUBSEQUENTLY PRIMING THIS FORECAST AREA FOR LARGER UPSWING IN CONVECTIVE ACTIVITY EITHER FRI OR SAT. THUS HAVE TRENDED POPS UPWARD FRI AND SAT INTO THE CHANCE CATEGORY MAINLY CENTRAL/ERN SECTIONS. UPPER HIGH TO BE CENTERED OVER THE CENTRAL ROCKIES/CENTRAL CONUS PLAINS REGION LATER THIS WEEKEND INTO THE MIDDLE OF NEXT WEEK. 09/12Z GFS DEPICTED SOME SEMBLANCE OF INVERTED-TROUGH FEATURE BRUSHING THE AREA SUN NIGHT FOR POTENTIAL UPSWING IN ACTIVITY. HARD TO DETERMINE AT THIS TIME THOUGH WHICH DAY...OR DAYS...DURING THE LATTER PART OF THE FORECAST PERIOD WILL BE POTENTIALLY UP-DAYS...OR DOWN-DAYS. SO FOR NOW WILL MAINTAIN INHERITED SLIGHTLY BELOW NORMAL CLIMO POP FORECASTS FOR NOW. DAYTIME MAX TEMPS EXPECTED TO BE EITHER NEAR OR SLIGHTLY ABOVE NORMAL THIS WEEKEND INTO EARLY NEXT WEEK. && .AVIATION...SCATTERED TSTMS THIS EVENING GENERALLY EAST OF A GLOBE-RED ROCK-KITT PEAK LINE. CIGS ASSOCIATED WITH CB/S WILL GENERALLY BE AROUND 6-8KFT AGL...THOUGH CIGS AS LOW AS 2-3KFT AGL WITH THE STRONGEST TSTMS. BELIEVE BULK OF SHRA/TSRA WILL END BY AROUND 10/06Z OR SO...ALTHOUGH ISOLATED -TSRA MAY YET OCCUR KTUS VICINITY WWD UNTIL AROUND 10/12Z. SCT-BKN CLOUD DECK ABOVE 12KFT AGL AFTER 10/06Z INTO FRI MORNING. AVIATION DISCUSSION NOT UPDATED FOR TAF AND TWEB AMENDMENTS. && .TWC WATCHES/WARNINGS/ADVISORIES...NONE. BF WEATHER.GOV/TUCSON
The Tucson radar (KEMX), 24 km away, was scanning. The volume nearest the first event began at 21:59 UTC.
1 thunderstorm wind. Local standard time, as filed.
A severe thunderstorm near Sonoita caused several downed power lines and damage to two residences.
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, August 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: 54293.