Scattered thunderstorms developed to the south and west of the Phoenix metro area during the late afternoon hours of 31 August 2015. While these initial storms weren't particularly strong, they intensified rapidly as they moved into the west valley. The first storms to affect the metro area occurred near the I-10/I-17 "stack" interchange, but quickly moved east and swept through Sky Harbor Airport, Tempe and Arizona State University, south Scottsdale, and most of the east valley suburbs. Considerable tree damage and power outages were noted in Tempe as a result of these storms. Likewise several locations saw heavy rainfall with gauges reporting over an inch of rain north and west of Sky Harbor Airport.
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Base reflectivity loop from KIWA WSR-88D, showing the evolution of storms from approximately 6:45pm - 10:45pm Monday night. |
Base velocity loop from KIWA WSR-88D, showing strong outflow winds originating near downtown Phoenix and rapidly moving through Tempe into the east valley. Green colors indicate winds moving toward the radar (located at Mesa-Gateway Airport), Red colors indicate winds moving away from the radar. Loop is from approximately 6:45pm - 10:45pm Monday night |
Storm total rainfall - gauge data courtesy Flood Control District of Maricopa County |
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Storm over South Mountain at approximately 730pm. Image courtesy Jim Carefoot. |
Storm damage near Scottsdale Rd and Weber Dr. Image courtesy Karina Bland. |
Storm damage near 68th St and McKellips. Image courtesy Mary Wright. |
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE PHOENIX AZ
225 AM MST TUE SEP 01 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0410 PM HAIL 3 ENE CLAYPOOL 33.45N 110.77W
08/31/2015 E0.25 INCH GILA AZ TRAINED SPOTTER
PEA SIZED HAIL
0735 PM TSTM WND DMG 1 NE DOWNTOWN PHOENIX 33.46N 112.06W
08/31/2015 MARICOPA AZ BROADCAST MEDIA
TREES DOWN ACROSS 7TH ST AT ROOSEVELT
0735 PM TSTM WND DMG 1 WNW ARIZONA STATE FAI 33.47N 112.11W
08/31/2015 MARICOPA AZ BROADCAST MEDIA
BILLBOARD BLOWN DOWN AT GRAND AVE AND ENCANTO
0742 PM TSTM WND GST 6 NNW GUADALUPE 33.43N 112.01W
08/31/2015 M61 MPH MARICOPA AZ ASOS
SKY HARBOR AIRPORT
0750 PM TSTM WND DMG 1 N ARIZONA STATE UNIVE 33.44N 111.93W
08/31/2015 MARICOPA AZ PUBLIC
DOWNED STREETLIGHT POLE ON COLLEGE AVE JUST N OF CURRY
0753 PM TSTM WND DMG 2 WNW TEMPE MARKETPLACE 33.44N 111.93W
08/31/2015 MARICOPA AZ PUBLIC
NUMEROUS LARGE TREES DOWN NEAR 68TH AND MCKELLIPS
0755 PM TSTM WND DMG 2 NE DOWNTOWN SCOTTSDAL 33.51N 111.89W
08/31/2015 MARICOPA AZ BROADCAST MEDIA
POWER LINES DOWN AT CHAPARRAL AND 86TH ST.
0755 PM TSTM WND DMG 2 WNW TEMPE MARKETPLACE 33.44N 111.93W
08/31/2015 MARICOPA AZ TRAINED SPOTTER
NUMEROUS LARGE TREES DOWN ALONG SCOTTSDALE RD SOUTH OF
MCKELLIPS
0755 PM TSTM WND GST 1 W PAPAGO PARK 33.46N 111.97W
08/31/2015 M63 MPH MARICOPA AZ MESONET
0757 PM TSTM WND DMG 2 N PAPAGO PARK 33.48N 111.95W
08/31/2015 MARICOPA AZ TRAINED SPOTTER
ESTIMATED 55 MPH WIND TREE UPROOTED
0758 PM TSTM WND GST 1 NW ARIZONA STATE UNIV 33.43N 111.95W
08/31/2015 E65 MPH MARICOPA AZ TRAINED SPOTTER
TRAINED SPOTTER REPORTS SUSTAINED 65 MPH WIND AT
ROOSEVELT AND IST ST IN TEMPE
0800 PM TSTM WND GST 2 N PAPAGO PARK 33.48N 111.95W
08/31/2015 E50 MPH MARICOPA AZ TRAINED SPOTTER
0802 PM TSTM WND DMG 2 W ARIZONA STATE UNIVE 33.42N 111.97W
08/31/2015 MARICOPA AZ PUBLIC
TREES DOWN ALONG UNIVERSITY BETWEEN LOOP 202 AND PRIEST
0804 PM FLOOD 1 NE DOWNTOWN PHOENIX 33.46N 112.06W
08/31/2015 MARICOPA AZ PUBLIC
4 INCHES OF WATER ON I-10 AT 7TH ST.
0805 PM HAIL 1 NW ARIZONA STATE UNIV 33.42N 111.94W
08/31/2015 E0.25 INCH MARICOPA AZ TRAINED SPOTTER
PEA SIZED HAIL MILL AVE AND 5TH ST.
0806 PM HAIL ARIZONA STATE UNIVERSIT 33.42N 111.94W
08/31/2015 E0.25 INCH MARICOPA AZ TRAINED SPOTTER
0806 PM HEAVY RAIN 1 NW ARIZONA STATE UNIV 33.42N 111.94W
08/31/2015 E0.50 INCH MARICOPA AZ TRAINED SPOTTER
CURB TO CURB STREET FLOODING MILL AVE AND 5TH ST
0809 PM TSTM WND DMG 2 SW ARIZONA STATE FAIR 33.45N 112.12W
08/31/2015 MARICOPA AZ TRAINED SPOTTER
NUMEROUS TREES DOWN AT 27TH AVE AND VAN BUREN
0810 PM TSTM WND GST 2 N PAPAGO PARK 33.48N 111.95W
08/31/2015 M60 MPH MARICOPA AZ MESONET
0815 PM TSTM WND GST 2 ENE PAPAGO PARK 33.47N 111.92W
08/31/2015 E65 MPH MARICOPA AZ BROADCAST MEDIA
WIND 50 MPH GUSTS TO 65 MPH AT 74TH ST. AND MCDOWELL
0815 PM TSTM WND GST 4 S MESA 33.36N 111.74W
08/31/2015 M52 MPH MARICOPA AZ MESONET
0815 PM TSTM WND GST 5 NNW CASA GRANDE 32.95N 111.77W
08/31/2015 M52 MPH PINAL AZ AWOS
0816 PM TSTM WND DMG 1 N ARIZONA STATE FAIRG 33.48N 112.09W
08/31/2015 MARICOPA AZ BROADCAST MEDIA
DOWNED POWER POLES AND POWER LINES LAYING ATOP HOUSES
AT 17TH AVE AND THOMAS
0816 PM TSTM WND GST 1 E TEMPE 33.39N 111.91W
08/31/2015 M52 MPH MARICOPA AZ MESONET
0817 PM HAIL ARIZONA STATE UNIVERSIT 33.42N 111.93W
08/31/2015 E0.25 INCH MARICOPA AZ PUBLIC
PEA SIZED HAIL AT ASU
0820 PM FLOOD 1 NNE DOWNTOWN PHOENIX 33.46N 112.07W
08/31/2015 MARICOPA AZ BROADCAST MEDIA
DECK PARK TUNNEL FLOODED. NUMEROUS DRIVERS STRANDED IN
TUNNEL
0825 PM FLOOD 2 W PAPAGO PARK 33.45N 111.98W
08/31/2015 MARICOPA AZ BROADCAST MEDIA
DRIVER STRANDED DUE TO FLOODING 48TH ST AND VAN BUREN
0826 PM TSTM WND DMG 3 NNE PARADISE VALLEY 33.58N 111.93W
08/31/2015 MARICOPA AZ PUBLIC
TREE FELL ON CAR AT SCOTTSDALE RD AND SHEA BLVD
0830 PM TSTM WND DMG 1 SSW ARIZONA STATE UNI 33.41N 111.94W
08/31/2015 MARICOPA AZ PUBLIC
DOWNED TREES AND SHINGLES BLOWN OFF ROOFS AT MILL AVE
AND BROADWAY RD
0830 PM TSTM WND GST 2 NE FIESTA MALL 33.41N 111.83W
08/31/2015 E60 MPH MARICOPA AZ AMATEUR RADIO
ESTIMATED 60 MPH WIND IN CENTRAL MESA
0831 PM FLOOD 4 NNW SKY HARBOR AIRPOR 33.49N 112.03W
08/31/2015 MARICOPA AZ PUBLIC
CURB TO CURB STREET FLOODING AT 22ND ST AND OSBORN RD
0833 PM TSTM WND DMG 3 S FIESTA MALL 33.34N 111.86W
08/31/2015 MARICOPA AZ TRAINED SPOTTER
DELAYED REPORT. 8 INCH DIAMETER TREE UPROOTED. 12 INCH
DIAMETER TREE SNAPPED...TAKING DOWN A POWER POLE IN THE
PROCESS. METAL SIDING DAMAGED ON TEMPORARY BUILDING.
CROSS STREETS ALMA SCHOOL AND ELLIOT.
0852 PM TSTM WND DMG 3 SW CAMELBACK MOUNTAIN 33.49N 112.00W
08/31/2015 MARICOPA AZ PUBLIC
TREES DOWN ON 40TH ST BETWEEN INDIAN SCHOOL AND THOMAS
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RAINFALL (IN)
LOCATION 1 HR 24 HR
ACDC @ 14TH ST. PHOENIX 0.00 0.71
ACDC @ 36TH ST. PARADISE VALLEY 0.00 0.47
AHWATUKEE PHOENIX 0.00 0.08
APACHE JUNCTION FRS APACHE JUNCTION 0.00 0.20
APACHE TRAIL APACHE JUNCTION 0.00 0.12
ARIZONA HUNT CLUB YAVAPAI COUNTY 0.00 0.28
ASU SOUTH TEMPE 0.00 0.91
BERNEIL WASH PARADISE VALLEY 0.00 0.24
BULLDOG CANYON MARICOPA COUNTY 0.00 0.31
CAMP CREEK MARICOPA COUNTY 0.00 0.91
CAREFREE RANCH SCOTTSDALE 0.00 0.35
CARRIAGE LANE PARK MESA 0.00 0.31
CAVE CR.@ SPUR CROSS MARICOPA COUNTY 0.00 0.39
CAVE CREEK CAVE CREEK 0.00 0.59
CAVE CREEK LANDFILL PHOENIX 0.00 0.08
CHANDLER @ ALMA SCHOOL CHANDLER 0.00 0.12
CHANDLER AIRPORT CHANDLER 0.00 0.04
CLINE CREEK MARICOPA COUNTY 0.00 0.31
CLOUDBURST WASH FOUNTAIN HILLS 0.00 0.04
COOKS MESA YAVAPAI COUNTY 0.00 0.31
CROWN KING YAVAPAI COUNTY 0.00 0.04
DREAMY DRAW DAM PHOENIX 0.00 0.71
DURANGO COMPLEX PHOENIX 0.00 0.35
EAST FORK CC #1 PHOENIX 0.00 0.04
ELLIOT @ HAWES RD. MESA 0.00 0.04
EMF @ ARIZONA AVE. PINAL COUNTY 0.00 0.04
EMF @ BROADWAY MARICOPA COUNTY 0.00 1.06
EMF @ QUEENCREEK RD. MARICOPA COUNTY 0.00 0.08
ESTRELLA FAN MARICOPA COUNTY 0.00 0.08
FALCON FIELD MESA 0.00 0.16
FIG SPRINGS MARICOPA COUNTY 0.00 0.08
FITCH PARK MESA 0.00 0.16
FLORENCE JUNCTION PINAL COUNTY 0.00 0.16
FRAESFIELD MTN. SCOTTSDALE 0.00 0.04
FREESTONE BASIN GILBERT 0.00 0.39
GILA @ MARICOPA RD GILA RIVER IC 0.00 0.12
GILA @ OLBERG GILA RIVER IC 0.04 0.08
GOLDEN EAGLE BLVD. FOUNTAIN HILLS 0.00 0.04
GRAND @ 27TH AVE. PHOENIX 0.00 0.98
GRANITE REEF MARICOPA COUNTY 0.00 0.08
GRANITE REEF WASH SCOTTSDALE 0.00 0.43
GUADALUPE CHANNEL MESA 0.00 0.16
GUADALUPE FRS PHOENIX 0.00 0.08
HESPERUS DAM FOUNTAIN HILLS 0.00 0.04
HIGHLAND @ 68TH ST. SCOTTSDALE 0.00 0.28
HORSESHOE LAKE MARICOPA COUNTY 0.00 0.67
HUMBOLDT MOUNTAIN MARICOPA COUNTY 0.00 1.06
I-17 @ SR 169 YAVAPAI COUNTY 0.00 0.20
IBW @ INDIAN BEND RD. SCOTTSDALE 0.00 0.12
IBW @ INDIAN SCHOOL SCOTTSDALE 0.00 0.67
IBW @ MCKELLIPS RD. SCOTTSDALE 0.00 0.63
IBW @ SHEA BLVD. PHOENIX 0.00 0.51
IBW INTERCEPTOR SCOTTSDALE 0.00 0.12
JEFFERSON @ 4TH AVE. PHOENIX 0.00 1.50
KINGS RANCH PINAL COUNTY 0.00 0.24
KLEINMAN PARK MESA 0.00 0.35
LAKE MARGUARITE SCOTTSDALE 0.00 0.20
LAKE PLEASANT PEORIA 0.00 0.20
LAVEEN BASIN PHOENIX 0.00 0.28
LOST DOG WASH SCOTTSDALE 0.00 0.04
MAGMA FRS PINAL COUNTY 0.00 0.79
MARYLAND @ 27TH AVE. PHOENIX 0.00 0.04
MCDOWELL @ HAWES MARICOPA COUNTY 0.00 0.08
MCDOWELL @ MERIDIAN PINAL COUNTY 0.00 0.35
MCDOWELL MTN. PARK MARICOPA COUNTY 0.00 0.04
MCDOWELL MTN. ROAD MARICOPA COUNTY 0.00 0.04
MESA TOWER MESA 0.00 0.04
MISSOURI @ 16TH ST. PHOENIX 0.00 0.71
MOBILE MARICOPA COUNTY 0.00 0.08
MT. ORD GILA COUNTY 0.00 0.16
NEW RIVER FIRE MARICOPA COUNTY 0.00 0.12
NEW RIVER LANDFILL MARICOPA COUNTY 0.00 0.31
NEW RIVER MESA MARICOPA COUNTY 0.00 0.47
OLD X-CUT @ MCDOWELL PHOENIX 0.00 1.26
OSBORN @ 64TH ST. SCOTTSDALE 0.04 0.55
PAPAGO PARK PHOENIX 0.00 1.30
PARADISE VALLEY CC PARADISE VALLEY 0.00 0.35
PECOS BASIN MARICOPA COUNTY 0.00 0.04
PERRY PARK PHOENIX 0.00 1.30
PIMA @ JOMAX SCOTTSDALE 0.00 0.04
PIMA @ UNION HILLS SCOTTSDALE 0.00 0.16
PINNACLE PEAK VISTA SCOTTSDALE 0.00 0.12
POWERLINE FLOODWAY MESA 0.00 0.08
POWERLINE FRS PINAL COUNTY 0.00 0.16
PRICE DRAIN @ 202 MESA 0.00 0.47
QUEEN CR @ RITTENHOUSE MARICOPA COUNTY 0.00 0.04
QUEEN CREEK RD. MARICOPA COUNTY 0.00 0.08
RACKENSACK CANYON MARICOPA COUNTY 0.00 0.55
REATA PASS DAM SCOTTSDALE 0.00 0.08
REATA PASS WASH SCOTTSDALE 0.04 0.12
RITTENHOUSE FRS PINAL COUNTY 0.04 0.04
ROESER @ 2ND ST. PHOENIX 0.00 0.28
SAGUARO LAKE MARICOPA COUNTY 0.00 0.83
SALT R. @ 40TH ST. PHOENIX 0.00 0.24
SALT RIVER @ 67TH AVE. PHOENIX 0.00 0.43
SALT RIVER LANDFILL SALT RIVER IC 0.00 0.67
SANTA CRUZ @ SR 84 PINAL COUNTY 0.00 0.20
SEVEN SPRINGS YAVAPAI COUNTY 0.00 0.20
SEVEN SPRINGS WASH MARICOPA COUNTY 0.00 0.71
SIGNAL BUTTE FRS MARICOPA COUNTY 0.00 0.24
SKUNK CR. NR NEW R. MARICOPA COUNTY 0.00 0.55
SOUTH MOUNTAIN PARK PHOENIX 0.00 0.43
SOUTH MTN.PARK HQ PHOENIX 0.00 0.20
SPOOKHILL BROWN MESA 0.00 0.08
SPOOKHILL MCKELLIPS MARICOPA COUNTY 0.00 0.20
STAGECOACH WASH SCOTTSDALE 0.00 0.28
SUNUP RANCH MARICOPA COUNTY 0.00 0.08
TAT MOMOLIKOT DAM PINAL COUNTY 0.00 0.08
TATUM BASIN INFLOW PHOENIX 0.00 0.63
THOMAS @ 16TH ST. PHOENIX 0.04 1.18
THOMAS @ 48TH ST. PHOENIX 0.00 0.71
THOMPSON PEAK SCOTTSDALE 0.00 0.04
THUNDER MOUNTAIN MARICOPA COUNTY 0.00 0.12
THUNDERBIRD ACADEMY SCOTTSDALE 0.00 0.20
TOWERS MTN. YAVAPAI COUNTY 0.00 0.04
UPPER CLINE CREEK MARICOPA COUNTY 0.00 0.39
USERY MTN. PARK MARICOPA COUNTY 0.00 0.12
USERY PARK WS MARICOPA COUNTY 0.00 0.24
VINEYARD FRS PINAL COUNTY 0.00 0.20
WATERMAN WASH MARICOPA COUNTY 0.00 0.20
WEEKES WASH BASELINE APACHE JUNCTION 0.00 0.31
WILLIAMS FIELD ROAD MARICOPA COUNTY 0.00 0.08
WOLVERINE PASS MARICOPA COUNTY 0.00 0.12
THESE RAINFALL AMOUNTS ARE PRELIMINARY AND ARE NOT OFFICIAL.
AUTOMATED GAUGE DATA ARE FROM THE MARICOPA COUNTY FLOOD
CONTROL DISTRICT. STATIONS WITH NO RECORDED PRECIPITATION
ARE NOT SHOWN.
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