An upper level low tracking across Southeast Arizona caused thunderstorms across portions of the Tucson 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 upper level low tracking across Southeast Arizona caused thunderstorms across portions of the Tucson 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 Jun 11, 2:00 PM MST, 1 hour 36 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 200 PM MST MON JUN 11 2007 .SYNOPSIS...AN UPPER LOW MOVING INTO SOUTHERN ARIZONA WILL CONTINUE TO BRING A CHANCE OF SHOWERS AND THUNDERSTORMS TO SOUTHEAST ARIZONA THROUGH TONIGHT. THIS LOW WILL CLEAR THE REGION BY TUESDAY AS HIGH PRESSURE ALOFT BUILDS BACK OVER THE STATE. THIS RIDGE OF HIGH PRESSURE WILL LEAD TO WARMER DAYTIME TEMPERATURES BY THE END OF NEXT WEEK. && .DISCUSSION...SHOWERS CONTINUED ACROSS PORTIONS OF OUR EASTERN CWA THIS AFTERNOON. AREAS FROM AROUND TUCSON AND NOGALES WESTWARD HAVE NOT SEEN ANY SHOWER ACTIVITY SO FAR. RECENT SATELLITE IMAGERY INDICATED THAT THE UPPER LOW WAS MOVING INTO SONORA MEXICO WITH DRIER AIR STARTING TO SPREAD FARTHER EAST. THE MAIN QUESTION WILL BE WHETHER ENOUGH SURFACE HEATING CAN TAKE PLACE THIS AFTERNOON TO SUPPORT SHOWER OR THUNDERSTORM DEVELOPMENT IN THE DRY SLOT. ALSO NOT SURE WHETHER THE MID LEVEL LAPSE RATE WILL BE STEEP ENOUGH TO SUPPORT DEEP CONVECTION AS THE COLD POOL ALOFT MOVES OVER SOUTHERN ARIZONA. CURRENT SATELLITE IMAGERY SHOWS REDEVELOPMENT OVER CENTRAL PIMA AND NORTHERN MEXICO...EVEN WITH A FEW LIGHTNING STRIKES SOUTH OF THE BORDER. CURRENT RADAR SUPPORTS THIS SOMEWHAT WITH ISOLATED SHOWERS BEGINNING TO POP UP OVER CENTRAL PIMA. FOR NOW...WILL LIKELY LOWER POP VALUES ACROSS OUR EASTERN CWA AS THE BULK OF THE SHOWER ACTIVITY SPREADS EASTWARD AND DROP POPS FOR FAR WESTERN PIMA COUNTY. MODELS CONTINUED TO SHOW THE UPPER LOW TRACKING NORTHEAST INTO NORTH-CENTRAL NEW MEXICO/SOUTHERN COLORADO TUESDAY. THE NAM SOLUTION...HOWEVER...WAS MUCH SLOWER THAN THE GFS IN MOVING THIS LOW EAST OF THE AREA. CURRENT FORECAST REFLECTS THE GFS SOLUTION...WHICH HAS THE UPPER LOW CLEARING THE AREA TUESDAY MORNING. WILL CONTINUE THIS THINKING AS THE GFS HAS BEEN VERIFYING NICELY. THUS...WILL ONLY MENTION SINGLE DIGIT POP VALUES IN THE WHITE MOUNTAINS FOR TUESDAY BASED ON THE IDEA OF SOME LINGERING MOISTURE FOR INSTABILITY SHOWERS IN THE AFTERNOON AND EARLY EVENING. OTHERWISE...MODELS WERE PRETTY CONSISTENT IN BUILDING A RIDGE OF HIGH PRESSURE OVER THE REGION WEDNESDAY INTO FRIDAY WITH THE HIGH REMAINING IN PLACE THROUGH AT LEAST EARLY NEXT WEEK. IN GENERAL... THIS WILL LEAD TO HOTTER AFTERNOON TEMPERATURES ALONG WITH DRY CONDITIONS. && .FIRE WEATHER...AN UPPER LOW WILL CONTINUE TO LIFT NORTHEAST THROUGH ARIZONA TODAY. WINDS REMAIN FROM THE SOUTH TO SOUTHEAST AT 10 TO 20 MPH. INCREASED MOISTURE OVERHEAD HAS EXTREMELY LIMITED THE DRY LIGHTNING THREAT. WHILE THERE WILL BE DEVELOPMENT OF THUNDERSTORMS THROUGH THE LATE AFTERNOON AND INTO THE EVENING...THE VAST MAJORITY OF THE ACTIVITY SHOULD BE WET. SOME OF THE STORMS MAY PRODUCE GUSTS UP TO 40 MPH. TUESDAY WILL BE TRANSITION DAY AS CURRENT STORM SYSTEM MOVES ON EAST. MORE TYPICAL JUNE TYPE WEATHER WILL RETURN TO THE AREA WEDNESDAY AND CONTINUE INTO THE UPCOMING WEEKEND. && .AVIATION...CLOUD BASES WILL GENERALLY BE IN THE 7KFT-10KFT RANGE WITH SCATTERED SHOWERS AND THUNDERSTORMS. LOCAL GUSTS TO 40 MPH NEAR STRONGEST STORMS OTHERWISE SURFACE WINDS WILL BE SE-S 10 TO 20 MPH. AVIATION DISCUSSION NOT UPDATED FOR TAF OR TWEB AMENDMENTS. && .TWC WATCHES/WARNINGS/ADVISORIES...NONE. && WEATHER.GOV/TUCSON
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TUCSON AZ 523 PM MST SUN JUN 10 2007 AZZ019-029>035-110130- 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- 523 PM MST SUN JUN 10 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARIZONA AND SOUTHEAST ARIZONA. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY 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.
The Tucson radar (KEMX), 70 km away, was scanning. The volume nearest the first event began at 22:36 UTC.
1 thunderstorm wind. Local standard time, as filed.
A spotter estimated a wind gust of 60 mph and reported small branches down in Catalina.
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, June 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: 34473.