July 30, 2007 Storm Statistics

Readings From Weather Bus.com:

First Measurable Rain Time: July 30, 2007 at 5:30pm
Last Measurable Rain Time: July 30, 2007 at 8:30pm
Storm Total: 0.35in.
Max Rain Rate: 0.88in/hr
Peak Wind Gust: W @ 39mph
Total Lightning: 80,121

Comments:
This storm began when an outflow, produced by severe thunderstorms in Mesa, moved through the area around 5:00pm. The peak wind gust as the outflow moved through, was 39mph from the West. This particular outflow was very important in creating the thunderstorms that developed over the area, resulting in the very heavy rainfall that affected most of Apache Junction and Gold Canyon. Looking at the radar loop, below this discussion, from 4:54pm to 5:24pm you will see the outflow move into the area which then resulted in thunderstorms developing over the area. You can see this even clearer by watching the outflow cause thunderstorm growth just to the WNW of Florence.

The first 0.01in. of rainfall occurred at 5:30pm, associated with light rain from the thunderstorm as it developed. The light to moderate rainfall continued until 6:00pm. In this thirty minute time frame we recorded 0.06in. of rainfall. From 6:00pm to around 6:30pm, the thunderstorm continued to develop and strength, resulting in heavy rainfall, which led to an additional 0.21in. of rainfall in thirty minutes. The peak rain rate also occurred during this time, when at 6:17pm it peaked at 0.88in./hr.. (See the radar loop below from 5:32pm to 6:02pm) By 6:35pm, the thunderstorm had weakened substantially resulting in light rainfall, which continued until around 8:30pm. (See the radar loop below from 6:28pm to 6:57pm)The overall storm total was 0.35in..

John, at 18th Street and Indian School, estimated 0.10in. of rain. Robert, in western Gold Canyon reported approximately 0.40in. of rainfall. The automated rain gauge on Kings Ranch Road reported 0.43in. of rainfall. Ken, in Gilbert near the Freestone Park, reported little to no rainfall, but strong winds/dust and the darkest skies he has seen in several years, occurring at 4:30pm. Thank you for your rain reports! The above rain totals were reported to us by private individuals. The accuracy of these reports is unknown. If it rained at your location, let us know by clicking on the link at the top of the page titled "Public Rain/Weather Reports". Your report will be added to this page.

The severe thunderstorms that developed and moved through Mesa, caused a copious amount of flooding and wind damage, as can be seen in the reports received by the National Weather Service in Phoenix below:
..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0215 PM     FLASH FLOOD      AGUILA                  33.95N 113.17W
07/30/2007                   MARICOPA           AZ   FIRE DEPT/RESCUE

            CENTENNIAL WASH FLOWING WITH ONE FOOT OF WATER.

0312 PM     FLASH FLOOD      18 NW PHOENIX           33.73N 112.29W
07/30/2007                   MARICOPA           AZ   TRAINED SPOTTER

            HEAVY RAINFALL RATE OF .57 INCHES IN 15 MINUTES NEAR 35TH
            AVENUE/PEORIA. SOME SMALL TREES DOWN.

0330 PM     FLASH FLOOD      WADDELL                 33.59N 112.36W
07/30/2007                   MARICOPA           AZ   TRAINED SPOTTER

            HEAVY RAINFALL RATE OF .66 INCHES IN 15 MINUTES NW OF
            LUKE AFB.

0428 PM     FLASH FLOOD      GOODYEAR                33.42N 112.40W
07/30/2007                   MARICOPA           AZ   NEWSPAPER

            RUSSELL RANCH NEAR CITRUS ROAD/CAMELBACK ROAD. MEDIA
            SOURCE REPORTED HEAVY RAINFALL AND STREET FLOODING. SOME
            SMALL TREES DOWN.

0453 PM     FLASH FLOOD      MESA                    33.42N 111.74W
07/30/2007                   MARICOPA           AZ   TRAINED SPOTTER

            HEAVY RAINFALL RATE OF 1.5 INCHES PER HOUR NEAR VAL VISTA
            AND UNIVERSITY. MEASURED WIND GUST 45 MPH.

0458 PM     FLASH FLOOD      TEMPE                   33.39N 111.93W
07/30/2007                   MARICOPA           AZ   TRAINED SPOTTER

            NEAR MCCLINTOCK AND UNIVERSITY. STREETS AND INTERSECTIONS
            COMPLETELY FLOODED AND IMPASSABLE.

0505 PM     TSTM WND GST     MESA                    33.42N 111.74W
07/30/2007  E45.00 MPH       MARICOPA           AZ   TRAINED SPOTTER

            ESTIMATED 45+ MPH WIND GUST NEAR GREENFIELD AND HORNE.

0505 PM     TSTM WND GST     MESA                    33.42N 111.74W
07/30/2007  E60.00 MPH       MARICOPA           AZ   NWS EMPLOYEE

            ESTIMATED 60+ MPH WIND GUSTS NEAR BASELINE AND STAPLEY.

0505 PM     TSTM WND DMG     MESA                    33.42N 111.74W
07/30/2007                   MARICOPA           AZ   NEWSPAPER

            LARGE BILLBOARD WITH SEVERAL FULL-SIZED TIMBER SUPPORTS
            BLOWN DOWN ACROSS RAILROAD TRACKS AT BASELINE ROAD
            BETWEEN MESA DRIVE AND COUNTRY CLUB.

0510 PM     FLASH FLOOD      GILBERT                 33.33N 111.76W
07/30/2007                   MARICOPA           AZ   TRAINED SPOTTER

            RAINFALL OF .81 INCHES IN 30 MINUTES. MEASURED 40+ MPH
            WIND GUST.

0510 PM     TSTM WND GST     MESA                    33.42N 111.74W
07/30/2007  E50.00 MPH       MARICOPA           AZ   NWS EMPLOYEE

            ESTIMATED 50+ MPH WIND GUSTS AND VERY HEAVY RAINFALL NEAR
            GUADALUPE AND ALMA SCHOOL.

0513 PM     FLASH FLOOD      MESA                    33.42N 111.74W
07/30/2007                   MARICOPA           AZ   TRAINED SPOTTER

            HEAVY RAINFALL RATE OF 1.88 INCHES PER HOUR. MEASURED .75
            INCHES IN ABOUT 20 MINUTES NEAR VAL VISTA AND UNIVERSITY.


0515 PM     FLASH FLOOD      MESA                    33.42N 111.74W
07/30/2007                   MARICOPA           AZ   NEWSPAPER

            WATER RESCUE FROM FLOODED UNDERPASS WITH APPROX 2.0 FEET
            OF WATER AT COUNTRY CLUB AND BROADWAY ROAD.

0518 PM     FLASH FLOOD      TEMPE                   33.39N 111.93W
07/30/2007                   MARICOPA           AZ   TRAINED SPOTTER

            VERY HEAVY RAINFALL NEAR RURAL AND SOUTHERN. MEASURED 2.0
            INCHES IN ONE HOUR.

0520 PM     TSTM WND DMG     MESA                    33.42N 111.74W
07/30/2007                   MARICOPA           AZ   TRAINED SPOTTER

            NUMEROUS AWNINGS BLOWN OFF AND WIDESPREAD TREE DAMAGE.
            WINDS ESTIMATED 50-55+ MPH. HEAVY RAINFALL WITH FLOODED
            STREETS AND UNDERPASSES.

0525 PM     FLASH FLOOD      MESA                    33.42N 111.74W
07/30/2007                   MARICOPA           AZ   NEWSPAPER

            FOUR LANES ACROSS US HIGHWAY 60 CLOSED DUE TO FLOODING.

0525 PM     FLASH FLOOD      MESA                    33.42N 111.74W
07/30/2007                   MARICOPA           AZ   NEWSPAPER

            HEAVY RAINFALL OF 1.0 INCH IN 15 MINUTES NEAR BROWN AND
            HORNE.

0529 PM     FLASH FLOOD      MESA                    33.42N 111.74W
07/30/2007                   MARICOPA           AZ   OFFICIAL NWS OBS

            DOWNTOWN MESA FCDMC GAGE MEASURED 1.69 INCHES IN 45
            MINUTES.

0535 PM     DUST STORM       QUEEN CREEK             33.24N 111.64W
07/30/2007                   MARICOPA           AZ   TRAINED SPOTTER

            WFO TUCSON RELAYED SPOTTER REPORT OF VISIBILITY UNDER 1/2
            MILE IN BLOWING DUST.

0545 PM     DUST STORM       FLORENCE                33.04N 111.37W
07/30/2007                   PINAL              AZ   LAW ENFORCEMENT

            PINAL COUNTY SO REPORTED APPROX 50 FEET OF VISIBILITY IN
            BLOWING DUST AND RAIN.




Storm Pictures Taken on July 30, 2007: (Click Pictures To Enlarge)

July 30, Radar Loop From 4:54pm to 5:24pm
July 30, Radar Loop From 5:32pm to 6:02pm

July 30, Radar Loop From 6:28pm to 6:57pm




Rainfall Totals Released From The NWS:

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
700 PM MST MON JUL 30 2007

...24 HOUR PRECIPITATION FOR THE PHOENIX METRO AREA ENDING
AT 7 PM...

                               6 HR PRECIPITATION (INCHES)
                               OLDEST  >>>>>>>>>>>  NEWEST

  ID     STATION NAME           7 PM   1 AM   7 AM   1 PM   24 HR
                               -1 AM  -7 AM  -1 PM  -7 PM   TOTAL



AHWATUKEE
MAHA3    AHWATUKEE              0.00   0.00   0.00   0.00    0.00

APACHE JUNCTION
PMDA3    USERY MOUNTAIN PARK    0.00   0.00   0.00   0.00    0.00
KNGA3    KINGS RANCH            0.00   0.00   0.00   0.39    0.39

AVONDALE
AVOA3    AGUA FRIA @ BUCKEYE    0.00   0.00   0.00   0.00    0.00

BUCKEYE
MBUA3    BUCKEYE FRS #2         0.00   0.00   0.00   0.00    0.00

CAREFREE
ZCAA3    FRAESFIELD MOUNTAIN    0.00   0.00   0.00   0.16    0.16
CRFA3    CAREFREE RANCH         0.00   0.00   0.00   0.00    0.00

CAVECREEK
HMBA3    HUMBOLDT MOUNTAIN      0.00   0.00   0.00   0.00    0.00
CBTA3    CAVE BUTTES DAM        0.00   0.00   0.00   0.00    0.00

CHANDLER
ZCHA3    EMF @ ARIZONA AVE      0.00   0.00   0.00   0.00    0.00

GILBERT
ZGIA3    MESA TOWER             0.00   0.00   0.00   1.46    1.46
ZCPA3    CROSSROADS PARK        0.00   0.00   0.00   0.20    0.20

GLENDALE
MGLA3    CITY OF GLENDALE       0.00   0.00   0.00   0.00    0.00
MMDA3    MARYLAND @ 27TH AVE    0.00   0.00   0.00   0.08    0.08
MSXA3    ACDC @ 67TH AVE        0.00   0.00   0.00   0.00    0.00

GOODYEAR
ZGYA3    TUTHILL @ RAY RD       0.00   0.00   0.00   0.04    0.04

GUADALUPE
ZGAA3    GUADALUPE FRS          0.00   0.00   0.00   0.08    0.08

MESA
MBDA3    BROADWAY @ DOBSON      0.00     M      M    1.73    1.73
ZBLA3    BROADWAY @ LINDSAY     0.00   0.00   0.00   0.35    0.35
MBHA3    BROWN RD. @ HORNE      0.00   0.00   0.00   1.57    1.57
MEEA3    KLEINMAN PARK            M    0.00   0.00   1.14    1.14
FALA3    THUNDER MOUNTAIN       0.00   0.00   0.00   0.00    0.00
MLAA3    MOUNTAIN VIEW PARK     0.00   0.00   0.00   1.26    1.26
WMSA3    QUEEN CREEK RD         0.00   0.00   0.00   0.04    0.04
ZUPA3    USERY PARK WS          0.00   0.00   0.39   0.16    0.55

NEW RIVER
NEWA3    SUNUP RANCH            0.00   0.00   0.00   0.00    0.00

PARADISE VALLEY
MCLA3    CAVE CREEK LANDFILL      M      M    0.00   0.00    0.00
MCCA3    E FORK CC #1           0.00   0.00   0.00   0.04    0.04
MLDA3    LOST DOG WASH          0.00   0.00   0.00   0.00    0.00
MRPA3    REATA PASS DAMSITE     0.00   0.00     M    0.00    0.00

PEORIA
NRDA3    NEW RIVER DAM          0.00   0.00   0.00   0.00    0.00
MBLA3    NEW RIVER @ BELL RD    0.00   0.00   0.00   0.00    0.00

PHOENIX
MBTA3    CESAR CHAVEZ PARK      0.00   0.00   0.00   0.00    0.00
MMIA3    MISSOURI @ 16TH ST     0.00   0.00   0.00   0.00    0.00
MOXA3    OLD XCUT @ MCDOWELL    0.00   0.00   0.00   0.12    0.12
MPAA3    PAPAGO PARK            0.00   0.00   0.00   0.20    0.20
MPPA3    PERRY PARK             0.00   0.00   0.00   0.04    0.04
ADBA3    ADOBE DAM              0.00   0.00   0.00   0.00    0.00
MPHA3    SKUNK CREEK @ I-17     0.00   0.00   0.00   0.00    0.00
MPMA3    JEFFERSON @ 4TH AVE    0.00   0.00   0.00   0.00    0.00
MROA3    ROESER @ 2ND ST        0.00   0.00   0.00   0.00    0.00
ZSFA3    SOUTH MOUNTAIN FAN     0.00   0.00   0.00   0.08    0.08
MTHA3    THOMAS & 16TH ST       0.00   0.00   0.00   0.00    0.00
MTQA3    THOMAS @ 48TH ST       0.00   0.00   0.00   0.12    0.12

QUEEN CREEK
ZQRA3    QUEEN CR @ RITTENHO    0.00   0.00   0.00   0.08    0.08
ZQCA3    QUEEN CREEK LANDFIL    0.00   0.00   0.00   0.00    0.00
QNCA3    EMF @ QUEEN CREEK R    0.00   0.00   0.00   0.00    0.00

SCOTTSDALE
SDLA3    INDIAN BEND WASH @     0.00   0.00   0.00   0.83    0.83
ZMDA3    MCDOWELL MOUNTAIN P    0.00   0.00   0.00   2.20    2.20
MPJA3    PIMA @ JOMAX             M      M    0.00   0.24    0.24

SUN CITY
MSWA3    SUN CITY WEST          0.00   0.00   0.00   0.04    0.04

SURPRISE
MDYA3    DYSART @ BELL RD       0.00   0.00   0.00   0.00    0.00
MCFA3    MCMICKEN FLOODWAY      0.00   0.00   0.00   0.00    0.00

TEMPE
MSPA3    SALT RIVER @ PRIEST    0.00   0.00   0.00   0.51    0.51
MTEA3    ASU SOUTH              0.00   0.00   0.00   1.46    1.46