northeast flow aloft prevailed over Southeast Arizona. and propogated southwestward.
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.
With high pressure aloft over the Four-Corners region...northeast flow aloft prevailed over Southeast Arizona. Thunderstorms developed over the higher terrain northeast of Tucson...and propogated southwestward. With the boundary layer still relatively dry...thunderstorms were able to aggregate and strengthen their outflow winds. Several severe wind gusts resulted.
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 29, 1:45 PM MST, 3 hours 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 145 PM MST MON JUN 29 2009 .SYNOPSIS...HIGH PRESSURE ALOFT NEAR THE FOUR CORNERS REGION WILL MAINTAIN SOUTHEASTERLY FLOW AND BRING DEEP MOISTURE INTO SOUTHEAST ARIZONA THIS WEEK. THIS PATTERN WILL PROVIDE SCATTERED MAINLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS. && .DISCUSSION...CONVECTION STARTING IN ERNEST OVER THE PAST HOUR WITH NICE ORGANIZATION ON THE RIM. LESS DEBRIS CLOUD AROUND THIS MORNING...SO MANY AREAS WERE ABLE TO MANAGE MORE SUNSHINE TODAY. FULL MOISTURE IN PLACE WITH SURFACE DEWPTS IN THE UPPER 50S TO MIDDLE 60S THIS MORNING...EASILY HOLDING MIDDLE TO UPPER 50S THIS AFTERNOON. 12Z KTUS SOUNDING CAME IN WITH 1.58 INCHES OF PRECIPITABLE WATER WHICH IS CONSISTENT WITH THE DEEPER MOISTURE EXTENDING UP FROM SONORA ON GOES SOUNDER ESTIMATES. LESS STABLE TEMPERATURE PROFILE WITH A LITTLE COOLING AROUND H5 OVER THE PAST 24 HOUR4S WITH BETTER SHEAR AS WELL. LOW LEVEL SOUTHERLY PUSH TRYING TO DEEPEN MOISTURE IN LOWER DESERT LOCATIONS. ADD IN A FAVORABLE EASTERLY COMPONENT TO STEERING LEVEL FLOW AND IT IS STILL SHAPING UP TO BE A MORE ACTIVE DAY WITH COVERAGE SPREADING FURTHER WESTWARD. ANOTHER DAY WHERE LOCALLY HEAVY RAINFALL AND WET MICROBURSTS A CONCERN. HIGH CENTER RECONSOLIDATING TO THE NORTHEAST...SO EASTERLY AND SOUTHERLY COMPONENTS TO FLOW SHOULD BE FAVORABLE MOST OF THE WEEK. EXPECT A DAILY SHOT OF SCATTERED MAINLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS. BOTH GFS AND ECMWF BRING IN SOME WEST COASTAL TROFINESS THIS WEEKEND...BUT GFS SEES HIGH RECONSOLIDATE INTO A SEMI BLOCKING POSITION THROUGH NORTHWEST AND NORTHCENTRAL MEXICO WHILE THE EUROPEAN PHASES THE HIGH INTO THE SOUTHERN PLAINS. THESE DIFFERENCES ARE MORE IMPORTANT FOR OTHER PARTS OF THE STATE...NO REASON AT THIS POINT TO BACK OFF ON THE FORECAST MUCH FOR MOST OF OUR AREA. && .AVIATION...ANOTHER ROUND OF SCATTERED TSRA/SHRA IS EXPECTED THIS AFTERNOON AND EVENING. ASSOCIATED CEILINGS WILL BE 10-13K FT AGL WITH CIGS NEAR TSRA/SHRA DOWN TO ABOUT 3-6K FT AGL. SURFACE WINDS TODAY GENERALLY DIURNAL IN NATURE AND LESS THAN 15 KTS...WITH THE EXCEPTION OF ERRATIC/GUSTY OUTFLOW WINDS NEAR ANY THUNDERSTORMS. AVIATION DISCUSSION NOT UPDATED FOR TAF AMENDMENTS. && .FIRE WEATHER...A MOIST ATMOSPHERE ACROSS SOUTHEAST ARIZONA WILL RESULT IN SCATTERED MAINLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS THIS WEEK. THE HIGHER HUMIDITY AND RAINFALL WILL RESULT IN FEW FIRE WEATHER CONCERNS. && .TWC WATCHES/WARNINGS/ADVISORIES...NONE. WEATHER.GOV/TUCSON
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TUCSON AZ 730 AM MST MON JUN 29 2009 AZZ019-029-030-032>035-301430- NORTHERN GREENLEE COUNTY-SOUTHEAST PINAL COUNTY- UPPER GILA RIVER VALLEY-TOHONO OODHAM NATION- TUCSON METRO/MARANA/GREEN VALLEY-SANTA CRUZ COUNTY-COCHISE COUNTY- 730 AM MST MON JUN 29 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARIZONA AND SOUTHEAST ARIZONA. .DAY ONE...TODAY AND TONIGHT DEEP MOISTURE AND AN UNSTABLE ATMOSPHERE WILL BRING SCATTERED SHOWERS AND THUNDERSTORMS TO THE AREA TODAY AND TONIGHT. EXPECT LOCALLY HEAVY RAINFALL AND STRONG GUSTY WINDS WITH STORMS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY SCATTERED MAINLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE WEEK. EXPECT LOCALLY HEAVY RAINFALL AND STRONG GUSTY WINDS WITH SOME STORMS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AZZ031-301430- WESTERN PIMA COUNTY- 730 AM MST MON JUN 29 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARIZONA. .DAY ONE...TODAY AND TONIGHT WITH INCREASING MOISTURE SHOWERS AND THUNDERSTORMS WILL ALSO INCREASE TODAY. EXPECT LOCALLY HEAVY RAINFALL AND STRONG GUSTY WINDS WITH SOME STORMS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY EXPECT THE CHANCE OF MAINLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS TO INCREASE THIS WEEK AS DEEPER MOISTURE PUSHES IN. SOME STORMS WILL GENERATE LOCALLY HEAVY RAINFALL AND STRONG GUSTY WINDS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. WEATHER.GOV/TUCSON
The Tucson radar (KEMX), 78 km away, was scanning. The volume nearest the first event began at 00:01 UTC.
2 thunderstorm wind, 1 flash flood. Local standard time, as filed.
Streets were flooded in Willcox after an estimated 1-2 inches of rain.
Severe thunderstorm outflow winds caused 1/4 mile visibility near the Willcox Playa due to blowing dust. The trained spotter measured a wind gust of 72 mph.
Severe thunderstorm outflow winds tore a portion of the roofing material off a strip mall store near the intersection of Grant and Campbell. The debris from the roof blew into the parking lot, but resulted in no injuries. Winds from the same thunderstorm uprooted trees at the intersection of Pantano and 22nd Street, and damaged an awning on a mobile home. One woman and one child received minor injuries after a tree limb fell on them on the 1800 block of Mission Road. A large tree also fell onto two vehicles.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2009Every state in 2009This day in weather historyWarnings in Arizona, June 2009
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: 169209, 169208, 169205.