A complex of thunderstorms moved southeast from west central Arizona into western and central Pima County during the early morning hours. These storms produced very heavy rain and caused flash flooding on the Tohono O'odham Nation.
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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.
A complex of thunderstorms moved southeast from west central Arizona into western and central Pima County during the early morning hours. These storms produced very heavy rain and caused flash flooding on the Tohono O'odham Nation.
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 9, 2:45 AM MST, 1 hour 45 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 245 AM MST WED JUL 9 2014 .SYNOPSIS...EXPECT A CONTINUED CHANCE OF SHOWERS AND THUNDERSTORMS INTO NEXT WEEK. MOST STORMS WILL OCCUR DURING AFTERNOON AND EVENING HOURS BUT SOME WILL LINGER OVERNIGHT AT TIMES. SOME STORMS WILL BE ACCOMPANIED BY LOCALLY HEAVY RAINFALL AND STRONG WINDS. && .DISCUSSION...LOTS OF ORGANIZED OUTFLOWS FROM MULTIPLE CONVECTIVE CENTERS LAST NIGHT WITH SEVERAL RESIDUAL BOUNDARIES STILL BOUNCING AROUND OUT THERE. WITH THIS MUCH MOISTURE AND A DECENT FLOW WE'RE HAVING OUR FIRST SIGNIFICANT WIDESPREAD OVERNIGHT ACTIVITY OF THE SEASON. ALWAYS A POSSIBILITY WHEN YOU HAVE A NICE UPPER LEVEL DIFFLUENT FIELD ON THE PERIPHERY OF MAJOR FEATURES. WITH THIS ACTIVITY AND SIGNIFICANT DEBRIS THIS MORNING WE WILL TEND TO INHIBIT ORGANIZED CONVECTION WELL AWAY FROM THE MOUNTAINS LATER TODAY. WELL ABOVE AVERAGE MOISTURE AND A MODEST EASTERLY MID LEVEL FLOW SHOULD STILL ALLOW THE SKY ISLANDS TO FIRE...AND THE EASTERN AND FAR SOUTHEAST AREAS ON THE EDGE OF THE REMNANT COMPLEX CIRCULATION (WHICH WILL PROBABLY BE WEST OF TUCSON LATER THIS MORNING) WILL LIKELY BE PLENTY BUSY THIS AFTERNOON. CURRENT FORECAST EMPHASIS FOR TODAY AFTER THE MORNING ACTIVITY WILL BE MOUNTAINS AND SOUTHERN AREAS. A MORE GENERAL COVERAGE PATTERN IN THE EARLY EVENING WITH ANY POTENTIAL OUTFLOWS HELPING SOME VALLEY LOCATIONS RESET...BUT NOT EXPECTING IT TO GO BONKERS WITH MORE LIMITED SOLAR INSOLATION. WATCH FOR US TO OPEN UP IN A FAVORABLE PATTERN FOR SOLID EASTERLY/SOUTHEASTERLY WAVE ACTIVITY BY THIS WEEKEND. THE MOISTURE REALLY DOESN'T LOOK LIKE IT'S GOING ANYWHERE ANY TIME SOON EVEN AS SOME TROUGHINESS TRIES TO DEVELOP NEAR THE WEST COAST THE SECOND HALF OF THE WEEK. THE ORIENTATION OF THE HIGH AS IT RECONSOLIDATES NORTHEAST AND EAST OF OUR AREA IS PERFECT FOR MORE PRONOUNCED EASTERLY WAVE ACTIVITY ESPECIALLY AS THE HIGH STARTS TO SHIFT BACK NORTH OF US BY SUNDAY. ECMWF CONTINUES TO HANDLE THE MEDIUM RANGE BIG PICTURE WELL WITH US TO PROVIDE MORE DETAIL FOR MOISTURE AND CONVECTIVE PARAMETERS FOR THIS PARTICULAR NECK OF THE WOODS. && .AVIATION...VALID THRU 10/09Z. SCATTERED TSRA/SHRA THIS MORNING DIMINISHING AFTER 09/12Z. SCATTERED TSRA/SHRA WILL OCCUR AGAIN THIS AFTERNOON AND EVENING. EXPECT MVFR VISIBILITIES WITH +TSRA...AS WELL AS POTENTIAL WIND GUSTS MOSTLY AROUND 45 KTS. OTHERWISE...CLOUD DECKS WILL BE AROUND 8-15K FT AGL. AVIATION DISCUSSION NOT UPDATED FOR TAF AMENDMENTS. && .FIRE WEATHER...MOISTURE WILL REMAIN SUFFICIENT TO PROVIDE SCATTERED TO PERHAPS NUMEROUS MAINLY AFTERNOON AND EVENING THUNDERSTORMS INTO EARLY NEXT WEEK. && .TWC WATCHES/WARNINGS/ADVISORIES...NONE. && VISIT US ON FACEBOOK...TWITTER...YOUTUBE...AND AT WEATHER.GOV/TUCSON MEYER/RASMUSSEN
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 1056 PM MST TUE JUL 8 2014 AZZ504>506-514-090645- SANTA CATALINA AND RINCON MOUNTAINS INCLUDING MOUNT LEMMON/SUMMERHAVEN AZ-SOUTH CENTRAL PINAL COUNTY INCLUDING ELOY/PICACHO PEAK STATE PARK AZ-SOUTHEAST PINAL COUNTY INCLUDING KEARNY/MAMMOTH/ORACLE AZ-TUCSON METRO AREA INCLUDING TUCSON/GREEN VALLEY/MARANA/VAIL AZ- 1056 PM MST TUE JUL 8 2014 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN PINAL AND NORTHEASTERN PIMA COUNTIES UNTIL 1145 PM MST... AT 1054 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING AN AREA OF STRONG THUNDERSTORMS DEVELOPING JUST NORTH OF MARANA AND NEAR ORO VALLEY...MOVING WEST AT 5 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORM...ALONG WITH HEAVY RAIN. AREAS AFFECTED BY THIS STORM INCLUDE...AVRA VALLEY...RED ROCK...ORO VALLEY LAT...LON 3244 11137 3266 11132 3264 11075 3233 11085 TIME...MOT...LOC 0555Z 102DEG 3KT 3251 11117 MEYER
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 226 AM MST WED JUL 9 2014 AZZ501-091015- WESTERN PIMA COUNTY INCLUDING AJO/ORGAN PIPE CACTUS NATIONAL MONUMENT AZ- 226 AM MST WED JUL 9 2014 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN PIMA COUNTY UNTIL 315 AM MST... AT 218 AM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR AJO...OR 38 MILES SOUTH OF GILA BEND... MOVING SOUTH AT 10 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN. AREAS AFFECTED BY THIS STORM INCLUDE...AJO. LAT...LON 3250 11312 3250 11278 3234 11274 3232 11300 TIME...MOT...LOC 0926Z 350DEG 10KT 3241 11289
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 359 AM MST WED JUL 9 2014 AZZ501-502-091145- TOHONO O'ODHAM NATION INCLUDING SELLS AZ-WESTERN PIMA COUNTY INCLUDING AJO/ORGAN PIPE CACTUS NATIONAL MONUMENT AZ- 359 AM MST WED JUL 9 2014 ...SIGNIFICANT WEATHER ADVISORY FOR WESTERN PIMA COUNTY UNTIL 445 AM MST... AT 348 AM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 15 TO 20 MILES SOUTHEAST OF AJO NEAR WHY...MOVING EAST AT 5 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 45 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN. AREAS AFFECTED BY THIS STORM INCLUDE...WHY AND HIGHWAY 86 WEST OF SELLS AS WELL AS WESTERN TO CENTRAL PORTIONS OF THE TOHONO O'ODHAM NATION. LAT...LON 3238 11257 3207 11242 3193 11268 3224 11283 TIME...MOT...LOC 1055Z 213DEG 3KT 3221 11266 MEYER
The Phoenix radar (KIWA), 154 km away, was scanning. The volume nearest the first event began at 11:29 UTC.
1 flash flood. Local standard time, as filed.
Heavy rain caused flooding of 30 homes near Menager's Dam and two in Gunsight. Water was up to one foot deep. Gunsight Wash overflowed its banks and washed out Indian Road 5 near Gunsight.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2014Every state in 2014This day in weather historyWarnings in Arizona, July 2014
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: 525865.