Double Punch hits Phoenix Area

Damaging wind storms hit the Phoenix Metro area on August 11 2015.

Strong winds and blowing dust affect Phoenix
Tuesday morning & Tuesday evening
Updated: 5am Wednesday 12 Aug 2015

Images courtesy Arizona Science Center (10:00am & 10:30pm)

A fast moving complex of showers and thunderstorms made its way through New Mexico, into Arizona, and through the Phoenix metro area during the morning hours of Tuesday 11 August 2015. Not only were 40-50mph winds common with these storms, but visibilities were reduced dramatically as blowing dust enveloped the metro area. Storms eventually moved into northern Arizona shortly after noon, with quiet weather taking hold during the afternoon/early evening hours.

A secondary disturbance moved through southeast Arizona several hours later, eventually making its way through the Phoenix metro between 8pm and midnight. For the second time in less than 12 hours, widespread winds (this time in the 50-60mph range) overspread the valley along with near-zero visibility due to blowing dust.

Additional information will be added to this page in the coming days as more reports become available.

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Round 1 (Tuesday Morning)

Radar loops: Click each image for a larger view

Base reflectivity imagery from KIWA Doppler radar. Brighter colors indicate stronger storms/heavier rainfall. Imagery from approximately 9am - 1050am	Base velocity imagery from KIWA Doppler radar. Brighter colors indicate stronger winds. Imagery from approximately 9am - 1050am

Preliminary summary of morning peak winds:

LOCATION SPEED TIME/DATE LAT/LON 6 ENE DEER VALLEY 59 MPH 1009 AM 08/11 33.72N/112.02W PHOENIX DEER VALLEY AIRPORT 57 MPH 1003 AM 08/11 33.69N/112.08W 5 NW EAST MESA 57 MPH 0931 AM 08/11 33.47N/111.73W 1 WSW LUKE AFB 52 MPH 1030 AM 08/11 33.53N/112.38W PHOENIX SKY HARBOR INTL ARPT 52 MPH 0958 AM 08/11 33.43N/112.00W RDA (PHOENIX) WILLIAMS AIR F 51 MPH 0941 AM 08/11 33.29N/111.67W 7 SSW CAVE CREEK 49 MPH 1003 AM 08/11 33.72N/111.99W CHANDLER MUNICIPAL AIRPORT 46 MPH 0947 AM 08/11 33.27N/111.81W SCOTTSDALE MUNICIPAL AIRPORT 46 MPH 0957 AM 08/11 33.62N/111.91W 3 NE EAST MESA 45 MPH 0931 AM 08/11 33.45N/111.65W 1 ENE CAREFREE 43 MPH 1024 AM 08/11 33.83N/111.90W 4 W QUEEN CREEK 42 MPH 0947 AM 08/11 33.23N/111.72W 2 N GILBERT 40 MPH 0941 AM 08/11 33.39N/111.79W 6 W NORTH SCOTTSDALE 40 MPH 1005 AM 08/11 33.65N/112.00W 5 E DEER VALLEY 40 MPH 1013 AM 08/11 33.66N/112.02W 3 WSW APACHE JUNCTION 40 MPH 0933 AM 08/11 33.40N/111.60W 6 ESE DEER VALLEY 39 MPH 1000 AM 08/11 33.65N/112.01W 1 SSW YOUNGTOWN 39 MPH 1044 AM 08/11 33.57N/112.31W 6 WNW PARADISE VALLEY 39 MPH 1017 AM 08/11 33.57N/112.05W 4 SSE NEW RIVER 37 MPH 1017 AM 08/11 33.86N/112.10W HIGLEY 37 MPH 0939 AM 08/11 33.31N/111.72W 2 ENE TEMPE 36 MPH 0952 AM 08/11 33.40N/111.88W 1 W HIGLEY 35 MPH 0942 AM 08/11 33.31N/111.75W FOUNTAIN HILLS 34 MPH 1006 AM 08/11 33.61N/111.73W 1 NE PEORIA 34 MPH 1030 AM 08/11 33.59N/112.22W 3 NNE ODESSA 33 MPH 1025 AM 08/11 33.57N/112.17W AHWATUKEE FOOTHILLS 32 MPH 1004 AM 08/11 33.31N/112.05W 3 ESE QUEEN CREEK 32 MPH 0915 AM 08/11 33.22N/111.59W 3 N HIGLEY 31 MPH 0938 AM 08/11 33.35N/111.71W 5 E DEER VALLEY 31 MPH 1008 AM 08/11 33.65N/112.03W 6 NW PARADISE VALLEY 31 MPH 1010 AM 08/11 33.59N/112.03W 5 SE DEER VALLEY 31 MPH 1004 AM 08/11 33.62N/112.04W 1 NNE GOODYEAR 30 MPH 1040 AM 08/11 33.46N/112.40W 1 NW GILBERT 30 MPH 0948 AM 08/11 33.37N/111.81W 5 N NORTH SCOTTSDALE 30 MPH 1038 AM 08/11 33.70N/111.88W 3 SW GUADALUPE 30 MPH 0959 AM 08/11 33.33N/111.99W

Preliminary summary of morning storm reports:

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0910 AM DUST STORM 1 NW SAN TAN VALLEY 33.18N 111.58W 08/11/2015 PINAL AZ TRAINED SPOTTER VISIBILITIES DOWN TO 1/4 MILES AND DECREASING IN BLOWING DUST NEAR THE INTERSECTION OF GARY ROAD AND HUNT HWY. 0917 AM TSTM WND GST 4 ESE SUPERSTITION SPRI 33.37N 111.62W 08/11/2015 E45 MPH MARICOPA AZ TRAINED SPOTTER ESTIMATED 45 MPH WINDS AND CONSIDERABLE DUST ON THE HORIZON FROM APACHE JUNCTION...NEAR SUPERSTITION SPRINGS AND IDAHO. 0923 AM DUST STORM 4 ESE SUPERSTITION SPRI 33.37N 111.62W 08/11/2015 MARICOPA AZ NWS EMPLOYEE VISIBILITY 1/4 MILE. WINDS GUSTING TO 45 MPH. 0930 AM TSTM WND GST 4 SE TUMBLEWEED PARK 33.24N 111.78W 08/11/2015 E50 MPH MARICOPA AZ TRAINED SPOTTER 0930 AM TSTM WND GST 4 ESE CHANDLER 33.27N 111.81W 08/11/2015 M46 MPH MARICOPA AZ AWOS ALONG WITH 2 MILE VISIBILITY IN BLOWING DUST 0931 AM TSTM WND GST 3 NNE MESA 33.46N 111.73W 08/11/2015 M58 MPH MARICOPA AZ AWOS 0937 AM DUST STORM 4 SSE TUMBLEWEED PARK 33.22N 111.79W 08/11/2015 MARICOPA AZ TRAINED SPOTTER LESS THAN 1/8 MILE VIS WITH G40 MPH WINDS. 0940 AM TSTM WND GST GRANITE REEF DAM 33.51N 111.69W 08/11/2015 M55 MPH MARICOPA AZ MESONET 0941 AM DUST STORM 4 E HIGLEY 33.31N 111.66W 08/11/2015 MARICOPA AZ AWOS ONE QUARTER MILE VISIBILITY WITH MEASURED 51 MPH WIND GUST 0955 AM DUST STORM 1 S CAMELBACK MOUNTAIN 33.50N 111.96W 08/11/2015 MARICOPA AZ TRAINED SPOTTER VISIBILITY LESS THAN ONE HALF MILE 0957 AM DUST STORM 3 SW DESERT RIDGE MARKE 33.65N 112.01W 08/11/2015 MARICOPA AZ TRAINED SPOTTER ONE QUARTER MILE VISIBILITY WITH MEASURED 39 MPH WIND GUST 0958 AM TSTM WND GST 6 NNW GUADALUPE 33.43N 112.01W 08/11/2015 M52 MPH MARICOPA AZ ASOS 1000 AM TSTM WND GST 4 NNW NORTH MOUNTAIN PA 33.64N 112.10W 08/11/2015 E55 MPH MARICOPA AZ TRAINED SPOTTER 1000 AM TSTM WND DMG 2 ENE SKY HARBOR AIRPOR 33.45N 111.99W 08/11/2015 MARICOPA AZ BROADCAST MEDIA PALO VERDE TREE WITH 8-10 INCH DIAMETER TRUNK KNOCKED DOWN ONTO CAR NEAR 44TH ST AND VAN BUREN. 1003 AM TSTM WND GST 9 E PEORIA 33.69N 112.08W 08/11/2015 M58 MPH MARICOPA AZ ASOS 1005 AM DUST STORM 9 NNE GLENDALE 33.66N 112.13W 08/11/2015 MARICOPA AZ TRAINED SPOTTER ONE HALF MILE VISIBILITY NEAR I-17 AND LOOP 101 WITH 40 MPH WIND GUSTS 1015 AM HEAVY RAIN 2 NNW CHANDLER FASHION 33.32N 111.91W 08/11/2015 M0.50 INCH MARICOPA AZ TRAINED SPOTTER ONE HALF INCH IN 5 MINUTES 1015 AM TSTM WND DMG 5 S TEMPE 33.32N 111.93W 08/11/2015 MARICOPA AZ TRAINED SPOTTER 8 INCH DIAMETER TREE LIMB DOWNED 1015 AM TSTM WND DMG 2 NE TOLLESON 33.47N 112.24W 08/11/2015 MARICOPA AZ BROADCAST MEDIA AT LEAST TWO PALO VERDE TREES WITH TRUNK DIAMETERS OF SIX TO TWELVE INCHES KNOCKED DOWN OR SEVERELY DAMAGED NEAR 83RD AVE AND MCDOWELL RD. 1020 AM TSTM WND GST SURPRISE 33.65N 112.34W 08/11/2015 E50 MPH MARICOPA AZ TRAINED SPOTTER ALONG WITH 4 INCH DIAMETER TREE BRANCHES DOWN 1030 AM TSTM WND GST 1 W LUKE AFB 33.53N 112.38W 08/11/2015 M52 MPH MARICOPA AZ AWOS 1030 AM TSTM WND GST 3 SSW BEARDSLEY 33.64N 112.42W 08/11/2015 E40 MPH MARICOPA AZ TRAINED SPOTTER ALONG WITH BLOWING DUST 1055 AM DUST STORM 5 NNE HASSAYAMPA 33.42N 112.69W 08/11/2015 MARICOPA AZ AWOS ONE QUARTER MILE VISIBILITY WITH WIND GUSTS MEASURED 45 MPH

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Round 2 (Tuesday Evening)

Radar loops: Click each image for a larger view

Base reflectivity imagery from KIWA Doppler radar. Brighter colors indicate stronger storms/heavier rainfall. Imagery from approximately 830pm - 1030pm	Base velocity imagery from KIWA Doppler radar. Brighter colors indicate stronger winds. Imagery from approximately 830pm - 1030pm

Preliminary summary of evening peak winds:

LOCATION SPEED TIME/DATE LAT/LON 2 WNW CASA GRANDE 65 MPH 0845 PM 08/11 32.90N/111.79W RDA (PHOENIX) WILLIAMS AIR F 62 MPH 0920 PM 08/11 33.29N/111.67W CASA GRANDE MUNICIPAL AIRPOR 59 MPH 0855 PM 08/11 32.95N/111.77W 4 W QUEEN CREEK 56 MPH 0922 PM 08/11 33.23N/111.72W 4 SSE COOLIDGE 51 MPH 0835 PM 08/11 32.92N/111.51W 2 SSE ROOSEVELT 49 MPH 0846 PM 08/11 33.64N/111.12W QUEEN CREEK 48 MPH 0905 PM 08/11 33.25N/111.64W 3 WSW APACHE JUNCTION 47 MPH 0928 PM 08/11 33.40N/111.60W 2 WNW SANTAN 46 MPH 0929 PM 08/11 33.17N/111.84W 5 E SUN LAKES 46 MPH 0915 PM 08/11 33.22N/111.78W 1 ESE APACHE JUNCTION 44 MPH 0920 PM 08/11 33.41N/111.53W 1 WSW SAGUARO LAKE 44 MPH 0945 PM 08/11 33.56N/111.54W 1 NE PUNKIN CENTER 44 MPH 1011 PM 08/11 33.87N/111.31W 1 E FOUNTAIN HILLS 43 MPH 0950 PM 08/11 33.60N/111.71W 1 ENE CAREFREE 43 MPH 1026 PM 08/11 33.83N/111.90W 5 E DEER VALLEY 41 MPH 1000 PM 08/11 33.66N/112.02W 1 NNW COOLIDGE 40 MPH 0922 PM 08/11 32.99N/111.53W 7 SE AK-CHIN VILLAGE 40 MPH 0916 PM 08/11 32.94N/112.02W 3 N HIGLEY 40 MPH 0928 PM 08/11 33.35N/111.71W FOUNTAIN HILLS 39 MPH 0945 PM 08/11 33.61N/111.73W 1 NW SAGUARO LAKE 39 MPH 0959 PM 08/11 33.58N/111.54W 6 WNW PARADISE VALLEY 39 MPH 1012 PM 08/11 33.57N/112.05W HIGLEY 38 MPH 0920 PM 08/11 33.31N/111.72W 4 E APACHE JUNCTION 38 MPH 0928 PM 08/11 33.41N/111.47W 7 ESE APACHE JUNCTION 38 MPH 0920 PM 08/11 33.35N/111.45W 3 E APACHE JUNCTION 34 MPH 0929 PM 08/11 33.42N/111.49W 2 SSW SCOTTSDALE 34 MPH 0950 PM 08/11 33.46N/111.94W 9 WSW NEW RIVER 33 MPH 1029 PM 08/11 33.85N/112.28W MOUNTAIN SPRINGS GRADE 33 MPH 0850 PM 08/11 32.67N/116.09W 5 E DEER VALLEY 33 MPH 1003 PM 08/11 33.65N/112.03W 4 W QUEEN CREEK 33 MPH 0918 PM 08/11 33.23N/111.73W 3 NNE ODESSA 33 MPH 1005 PM 08/11 33.57N/112.17W 1 NW GILBERT 33 MPH 0928 PM 08/11 33.37N/111.81W 5 NE TORTILLA FLAT 32 MPH 1235 AM 08/12 33.59N/111.34W 2 NNE CHANDLER 32 MPH 0930 PM 08/11 33.33N/111.86W PEORIA 31 MPH 1011 PM 08/11 33.58N/112.23W 8 ESE CAREFREE 31 MPH 1000 PM 08/11 33.76N/111.79W 15 WNW SUNFLOWER 31 MPH 0959 PM 08/11 33.98N/111.71W 3 WSW GLENDALE 31 MPH 1013 PM 08/11 33.51N/112.23W 4 W AHWATUKEE FOOTHILLS 31 MPH 1014 PM 08/11 33.31N/112.14W 5 NW APACHE JUNCTION 30 MPH 0944 PM 08/11 33.48N/111.61W

Preliminary summary of evening storm reports:

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0835 PM TSTM WND GST 1 NW COOLIDGE AIRPORT 32.94N 111.43W 08/11/2015 M55 MPH PINAL AZ AWOS 0835 PM TSTM WND GST RANDOLPH 32.92N 111.51W 08/11/2015 M51 MPH PINAL AZ MESONET 0845 PM TSTM WND GST 3 W CASA GRANDE 32.90N 111.79W 08/11/2015 M65 MPH PINAL AZ MESONET 0850 PM TSTM WND DMG SAN TAN VALLEY 33.17N 111.57W 08/11/2015 PINAL AZ UTILITY COMPANY 11400 SRP CUSTOMERS WITHOUT POWER IN PORTIONS OF THE SOUTHEAST VALLEY. WORST AREAS AFFECTED APPEAR TO BE IN THE SAN TAN VALLEY. 0851 PM TSTM WND GST NW CASA GRANDE 32.89N 111.74W 08/11/2015 E50 MPH PINAL AZ TRAINED SPOTTER SPOTTER REPORTED AN ESTIMATED 50 MPH WIND GUSTS AT MCCARTNEY RD AND SIGNAL PEAK. POWER IS OUT. 0855 PM TSTM WND GST 5 NNW CASA GRANDE 32.95N 111.77W 08/11/2015 M59 MPH PINAL AZ AWOS 0.75 MILE VISIBILITY IN BLOWING DUST 0855 PM TSTM WND DMG 2 SSW PHOENIX MESA GATE 33.27N 111.69W 08/11/2015 MARICOPA AZ TRAINED SPOTTER SEVEN DOWNED TREES IN NEIGHBORHOOD WITH TRUNK DIAMETERS RANGING FROM SIX INCHES TO TWO FEET NEAR POWER ROAD AND GERMANN RD. RAILROAD CROSSING ARM DAMAGED AT POWER AND PECOS. 0901 PM TSTM WND GST 2 ESE SAN TAN MOUNTAIN 33.14N 111.62W 08/11/2015 E50 MPH PINAL AZ TRAINED SPOTTER STORM SPOTTER ESTIMATES PEAK WIND GUST AROUND 50 MPH. WINDS OF 38 MPH WERE SUSTAINING FOR 20 MINUTES. THE SPOTTER HAD NO POWER AT HER HOME. 0901 PM TSTM WND GST 2 W APACHE JUNCTION 33.40N 111.58W 08/11/2015 M43 MPH PINAL AZ TRAINED SPOTTER SPOTTER MEASURED A PEAK WIND GUST OF 43 MPH AT BROADWAY AND MERRIDIAN 0904 PM TSTM WND DMG 1 SE TUMBLEWEED PARK 33.27N 111.82W 08/11/2015 MARICOPA AZ BROADCAST MEDIA AT LEAST TWO SMALL AIRCRAFT OVERTURNED AT CHANDLER MUNICIPAL AIRPORT. AIR STAIRS BLOWN OVER. 0905 PM DUST STORM 4 E HIGLEY 33.31N 111.66W 08/11/2015 MARICOPA AZ AWOS 0.25 MILE VISIBILITY 0905 PM DUST STORM 4 E HIGLEY 33.31N 111.66W 08/11/2015 MARICOPA AZ AWOS AT 0905 PM A VISIBILITY OF ONE EIGTH OF A MILE WAS MEASURED AT MESA-GATEWAY AIRPORT -KIWA 0906 PM TSTM WND DMG 2 E QUEEN CREEK 33.23N 111.60W 08/11/2015 MARICOPA AZ TRAINED SPOTTER PALM TREE UPROOTED NEAR RITTENHOUSE ROAD AND OCOTILLO ROAD. VISIBILITIY DOWN TO ONE QUARTER MILE IN BLOWING DUST. 0911 PM TSTM WND GST 5 NW STANFIELD 32.94N 112.02W 08/11/2015 M40 MPH PINAL AZ MESONET 0912 PM TSTM WND GST SEVILLE 33.23N 111.72W 08/11/2015 M56 MPH MARICOPA AZ MESONET 0914 PM TSTM WND GST 3 NE BAPCHULE 33.17N 111.84W 08/11/2015 M46 MPH PINAL AZ MESONET 0919 PM TSTM WND GST 2 ENE TUMBLEWEED PARK 33.28N 111.80W 08/11/2015 E45 MPH MARICOPA AZ TRAINED SPOTTER SPOTTER REPORTED PEAK WIND GUST OF 45 MPH. 0919 PM TSTM WND GST 4 E HIGLEY 33.31N 111.66W 08/11/2015 M62 MPH MARICOPA AZ AWOS AT 0920 PM A PEAK WIND GUST OF 62 MPH WAS MEASURED AT MESA-GATEWAY AIRPORT -KIWA. 0923 PM TSTM WND GST 3 N HIGLEY 33.35N 111.71W 08/11/2015 M40 MPH MARICOPA AZ MESONET 0923 PM TSTM WND DMG FLORENCE JUNCTION 33.26N 111.34W 08/11/2015 PINAL AZ DEPT OF HIGHWAYS DOWNED POWER LINES OVER ROAD AT FLORENCE JUNCTION. US-60 CLOSED AT MP 210. 0924 PM TSTM WND GST SEVILLE 33.23N 111.72W 08/11/2015 M41 MPH MARICOPA AZ TRAINED SPOTTER SPOTTER MEASURED 41 MPH WINDS AT CHANDLER HEIGHTS RD AND SE GILBERT 0929 PM HEAVY RAIN SEVILLE 33.23N 111.72W 08/11/2015 M0.75 INCH MARICOPA AZ TRAINED SPOTTER SPOTTER REPORTED .75 INCHES OF RAINFALL IN LESS THAN HALF AN HOUR. 0934 PM DUST STORM 5 WSW FOUNTAIN HILLS 33.59N 111.82W 08/11/2015 MARICOPA AZ TRAINED SPOTTER SPOTTER ESTIMATED VISIBILITY NEAR HALF A MILE. 0934 PM TSTM WND GST 3 E TUMBLEWEED PARK 33.27N 111.78W 08/11/2015 E40 MPH MARICOPA AZ TRAINED SPOTTER SPOTTER ESTIMATED 40 MPH WINDS AT GILBERT AND GERMANN. 0938 PM TSTM WND DMG 1 NNW SEVILLE 33.24N 111.72W 08/11/2015 MARICOPA AZ TRAINED SPOTTER 1 FOOT DIAMETER TREE DOWN NEAR CHANDLER HEIGHTS AND HIGLEY 0944 PM DUST STORM 2 SSE USERY MOUNTAIN PA 33.44N 111.60W 08/11/2015 MARICOPA AZ TRAINED SPOTTER QUARTER MILE VISIBILITY 1007 PM TSTM WND GST 9 E PEORIA 33.69N 112.08W 08/11/2015 M52 MPH MARICOPA AZ ASOS THUNDERSTORM WIND GUST TO 52 MPH MEASURED AT DEER VALLEY AIRPORT. 1010 PM DUST STORM 3 W WADDELL 33.59N 112.41W 08/11/2015 MARICOPA AZ TRAINED SPOTTER VISIBILITY OF ONE HALF TO THREE QUARTERS OF A MILE IN BLOWING DUST NEAR CACTUS ROAD AND SARIVAL AVE.