Active: Tracker RadarAugust 7, 2008 Storm Statistics
Readings From Weather Bus.com:
First Measurable Rain Time: August 7, 2008 at 8:55pm
Last Measurable Rain Time: August 7, 2008 at 10:15pm
Storm Total: 0.07in.
Max Rain Rate: 0.11in/hr
Peak Wind Gust: N @ 24mph
Total Lightning: 116,809
Comments:
Rainfall Totals Released From The NWS:
First Measurable Rain Time: August 7, 2008 at 8:55pm
Last Measurable Rain Time: August 7, 2008 at 10:15pm
Storm Total: 0.07in.
Max Rain Rate: 0.11in/hr
Peak Wind Gust: N @ 24mph
Total Lightning: 116,809
Comments:
On August 7th, thunderstorms to the north of the valley and thunderstorms to the south and east of the valley produced outflows, which later converged over the area resulting in strong to severe thunderstorms across the region during the early evening through the late night hours. For the Gold Canyon area, the majority of the heavy rainfall was seen in the southern and southeast portion of the area. The rain total at our location was 0.07in., with a peak rain rate of 0.11in/hr occurring at 9:46pm. Below is a summary of the events which occurred during the storm. We mainly focused on the outflow coming up from the south, as it had a larger impact on our weather.
By 5:45pm, to our south, two outflows which would later help to create the strong to severe thunderstorms in the valley, had developed or been enhanced. The newly formed outflow was caused by thunderstorms between Coolidge and Florence, while thunderstorms about seven miles south of Florence enhanced an outflow, which was produced by thunderstorms early in the afternoon in southern Pinal County. To the right is the Base Reflectivity (1.0° tilt) radar image (click image to enlarge), taken at 5:41pm, showing the two outflows and the thunderstorms. We have marked the outflow boundaries in yellow and the direction in white.
By 6:45pm, thunderstorms had developed along and just behind the two outflow boundaries, to the south of Florence Junction and in the eastern portion of Queen Creek. The radar image (click image to enlarge) to the left is the Base Reflectivity (1.0° tilt), from 6:45pm. The long outflow boundary marked on the radar image was producing an impressive dust storm, with a report of visibility less than one quarter mile due to blowing dust two miles north-northeast of Casa Grande, at 6:40pm.
As the two outflows from the south, interacted in between Gold Canyon and Florence Junction, a severe thunderstorm developed, around 7:20pm, just to the east of Florence, which likely produced very strong winds, hail and extremely heavy rainfall. The radar image (click image to enlarge) to the right, shows the severe thunderstorms to the east of Florence, the large outflow boundary moving into the valley from the south and east, as well as the outflow moving down from the north.
Around 7:59pm, the severe thunderstorms between Gold Canyon and Florence Junction weakened, while additional thunderstorms spread/developed into mainly the southeast portion of Gold Canyon, with the heaviest rainfall between Peralta Trails and Kings Ranch. The radar image (click image to enlarge) to the left is zoomed into the Gold Canyon region, with several roads marked for orientation purposes.
Between 7:50pm and 8:20pm, the three outflows, (1) one coming down from the north, (2) second coming down from the north-northeast, and (3) the outflow coming up from the south converged over Mesa and Tempe, resulting in strong to severe thunderstorms rapidly developing across nearly the entire eastern portion and later central portion of the valley. The loop below shows the three outflows coming together, and then producing the thunderstorms. Loop is from 7:36pm to 8:22pm, in about five minute intervals.
Thunderstorms continued across the region well into the late evening hours, resulting in very high rain totals across the valley, as well as some damage from high winds. Jacob, located a half mile northwest of N. 75th Ave and W. Deer Valley Rd, recorded 0.50in. of rainfall between 8:00pm and midnight, with a peak wind gust of 45mph, occuring at 8:15pm. Below are reports from the National Weather Service in Phoenix:
By 5:45pm, to our south, two outflows which would later help to create the strong to severe thunderstorms in the valley, had developed or been enhanced. The newly formed outflow was caused by thunderstorms between Coolidge and Florence, while thunderstorms about seven miles south of Florence enhanced an outflow, which was produced by thunderstorms early in the afternoon in southern Pinal County. To the right is the Base Reflectivity (1.0° tilt) radar image (click image to enlarge), taken at 5:41pm, showing the two outflows and the thunderstorms. We have marked the outflow boundaries in yellow and the direction in white.
By 6:45pm, thunderstorms had developed along and just behind the two outflow boundaries, to the south of Florence Junction and in the eastern portion of Queen Creek. The radar image (click image to enlarge) to the left is the Base Reflectivity (1.0° tilt), from 6:45pm. The long outflow boundary marked on the radar image was producing an impressive dust storm, with a report of visibility less than one quarter mile due to blowing dust two miles north-northeast of Casa Grande, at 6:40pm.
As the two outflows from the south, interacted in between Gold Canyon and Florence Junction, a severe thunderstorm developed, around 7:20pm, just to the east of Florence, which likely produced very strong winds, hail and extremely heavy rainfall. The radar image (click image to enlarge) to the right, shows the severe thunderstorms to the east of Florence, the large outflow boundary moving into the valley from the south and east, as well as the outflow moving down from the north.
Around 7:59pm, the severe thunderstorms between Gold Canyon and Florence Junction weakened, while additional thunderstorms spread/developed into mainly the southeast portion of Gold Canyon, with the heaviest rainfall between Peralta Trails and Kings Ranch. The radar image (click image to enlarge) to the left is zoomed into the Gold Canyon region, with several roads marked for orientation purposes.
Between 7:50pm and 8:20pm, the three outflows, (1) one coming down from the north, (2) second coming down from the north-northeast, and (3) the outflow coming up from the south converged over Mesa and Tempe, resulting in strong to severe thunderstorms rapidly developing across nearly the entire eastern portion and later central portion of the valley. The loop below shows the three outflows coming together, and then producing the thunderstorms. Loop is from 7:36pm to 8:22pm, in about five minute intervals.
Thunderstorms continued across the region well into the late evening hours, resulting in very high rain totals across the valley, as well as some damage from high winds. Jacob, located a half mile northwest of N. 75th Ave and W. Deer Valley Rd, recorded 0.50in. of rainfall between 8:00pm and midnight, with a peak wind gust of 45mph, occuring at 8:15pm. Below are reports from the National Weather Service in Phoenix:
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0640 PM DUST STORM 2 NNE CASA GRANDE 32.92N 111.72W
08/07/2008 PINAL AZ TRAINED SPOTTER
VISIBILITY LESS THAN ONE QUARTER MILE DUE TO BLOWING
DUST...EAST OF INTERSTATE 10 NORTH OF CASA GRANDE
0743 PM TSTM WND DMG BUCKEYE 33.38N 112.60W
08/07/2008 MARICOPA AZ UTILITY COMPANY
POWER OUTAGES REPORTED DUE TO DOWNED POWER
LINES...APPROXIMATELY 70 TOTAL IN BUCKEYE AREA.
0817 PM TSTM WND DMG 3 S PHOENIX 33.50N 112.07W
08/07/2008 MARICOPA AZ UTILITY COMPANY
POWER OUTAGE DUE TO DOWNED POWER POLES IN CENTRAL AND
NORTH-CENTRAL PHOENIX.
0820 PM TSTM WND DMG PHOENIX 33.54N 112.07W
08/07/2008 MARICOPA AZ AMATEUR RADIO
VISIBILITY REDUCED TO ONE QUARTER MILE WITH
DUST...PHOENIX FIRE RESPONDING TO REPORTS OF TRANSFORMER
AND-OR POWER POLE FIRES...ESTIMATED LOCATION - DOWNTOWN
PHOENIX...12TH STREET AND JEFFERSON
0850 PM FLASH FLOOD TEMPE 33.39N 111.93W
08/07/2008 MARICOPA AZ TRAINED SPOTTER
TRAFFIC DETOURING AWAY FROM INTERSTATE
UNDERPASSES...WATER PONDING AND STARTING TO COVER CURBS
0951 PM FLASH FLOOD YOUNGTOWN 33.59N 112.30W
08/07/2008 MARICOPA AZ TRAINED SPOTTER
1 INCHE RAIN MEASURED IN 30 MINUTES...VISIBILITY AT OR
BELOW ONE QUARTER MILE DUE TO RAIN
0854 PM TSTM WND DMG SCOTTSDALE 33.69N 111.87W
08/07/2008 MARICOPA AZ AMATEUR RADIO
LARGE DEBRIS...TREE BRANCHES AND LEAVES IN ROADWAY...64TH
STREET AND SHEA BLVD
0940 PM FLASH FLOOD 5 E GLOBE 33.38N 110.67W
08/07/2008 GILA AZ TRAINED SPOTTER
WATER KNEE DEEP IN PARKING LOT REPORTED AT APACHE GOLD
CASINO...CURRENTS STRONG THROUGH PARKING LOT...LOW
VISIBILITY DUE TO HEAVY RAINFALL
Rainfall Totals Released From The NWS:
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
1008 AM MST FRI AUG 8 2008
...24 HOUR PRECIPITATION FOR THE PHOENIX METRO AREA ENDING
AT 10 AM...
NOTE...IF IT RAINED AT A LOCATION...THE AMOUNT WILL BE SHOWN
ONLY IF IT IS AT LEAST 0.04...4 HUNDREDTHS OF AN INCH. ANY RAIN
AMOUNT LESS THAN 0.04 IS NOT REGISTERED AND IS SHOWN AS 0.00
6 HR PRECIPITATION (INCHES)
OLDEST >>>>>>>>>>> NEWEST
ID STATION NAME 10 AM 4 PM 10 PM 4 AM 24 HR
-4 PM -10 PM -4 AM -10 AM TOTAL
KPHX PHOENIX SKY HARBOR 0.00 0.55 0.14 0.00 0.69
AHWATUKEE
MAHA3 AHWATUKEE 0.00 0.28 0.04 0.00 0.31
APACHE JUNCTION
PMDA3 USERY MOUNTAIN PARK 0.00 0.20 0.00 0.00 0.20
KNGA3 KINGS RANCH 0.00 0.00 0.00 0.00 0.00
AVONDALE
AVOA3 AGUA FRIA @ BUCKEYE 0.00 0.24 0.16 0.00 0.39
BUCKEYE
MBUA3 BUCKEYE FRS #2 0.00 0.00 0.00 0.04 0.04
CAREFREE
ZCAA3 FRAESFIELD MOUNTAIN 0.00 0.04 0.16 0.00 0.20
CRFA3 CAREFREE RANCH 0.00 0.16 0.31 0.00 0.47
CAVECREEK
HMBA3 HUMBOLDT MOUNTAIN 0.00 0.12 0.08 0.00 0.20
CBTA3 CAVE BUTTES DAM 0.00 0.00 0.24 0.00 0.24
CHANDLER
ZCHA3 EMF @ ARIZONA AVE 0.00 0.08 0.00 0.00 0.08
GILBERT
ZGIA3 MESA TOWER 0.00 0.35 0.00 0.00 0.35
ZCPA3 CROSSROADS PARK 0.00 0.24 0.04 0.00 0.28
GLENDALE
MGLA3 CITY OF GLENDALE 0.00 0.91 0.20 0.00 1.10
MMDA3 MARYLAND @ 27TH AVE 0.00 1.26 0.24 0.00 1.50
MSXA3 ACDC @ 67TH AVE 0.00 1.06 0.12 0.00 1.18
GOODYEAR
ZGYA3 TUTHILL @ RAY RD 0.00 0.47 0.04 0.00 0.51
GUADALUPE
ZGAA3 GUADALUPE FRS 0.00 0.55 0.08 0.00 0.63
MESA
MBDA3 BROADWAY @ DOBSON 0.00 0.51 0.04 0.00 0.55
ZBLA3 BROADWAY @ LINDSAY 0.00 0.79 0.00 0.00 0.79
MBHA3 BROWN RD. @ HORNE 0.00 0.87 0.00 0.00 0.87
MEEA3 KLEINMAN PARK 0.00 0.31 0.08 0.00 0.39
FALA3 THUNDER MOUNTAIN 0.00 0.12 0.00 0.00 0.12
MLAA3 MOUNTAIN VIEW PARK 0.00 0.47 0.00 0.00 0.47
WMSA3 QUEEN CREEK RD 0.00 0.43 0.00 0.00 0.43
ZUPA3 USERY PARK WS 0.00 0.31 0.00 0.00 0.31
NEW RIVER
NEWA3 SUNUP RANCH 0.00 0.43 0.00 0.00 0.43
PARADISE VALLEY
MCLA3 CAVE CREEK LANDFILL 0.00 0.04 0.08 0.00 0.12
MCCA3 E FORK CC #1 0.00 0.59 0.16 0.00 0.75
MLDA3 LOST DOG WASH 0.00 0.00 0.28 0.00 0.28
MRPA3 REATA PASS DAMSITE 0.00 0.12 0.20 0.00 0.31
PEORIA
NRDA3 NEW RIVER DAM 0.00 0.08 0.08 0.00 0.16
MBLA3 NEW RIVER @ BELL RD 0.00 0.35 0.24 0.00 0.59
PHOENIX
MBTA3 CESAR CHAVEZ PARK 0.00 0.79 0.16 0.00 0.94
MMIA3 MISSOURI @ 16TH ST 0.00 1.50 0.24 0.00 1.73
MOXA3 OLD XCUT @ MCDOWELL 0.00 0.79 0.24 0.00 1.02
MPAA3 PAPAGO PARK 0.04 0.79 0.12 0.00 0.94
MPPA3 PERRY PARK 0.00 0.83 0.16 0.00 0.98
ADBA3 ADOBE DAM 0.00 0.16 0.12 0.00 0.28
MPHA3 SKUNK CREEK @ I-17 0.00 0.00 0.12 0.00 0.12
MPMA3 JEFFERSON @ 4TH AVE 0.00 0.28 0.16 0.00 0.43
MROA3 ROESER @ 2ND ST 0.00 0.24 0.12 0.00 0.35
SOMA3 SOUTH MOUNTAIN 0.00 0.55 0.12 0.00 0.67
ZSFA3 SOUTH MOUNTAIN FAN 0.00 0.20 0.31 0.00 0.51
MTHA3 THOMAS & 16TH ST 0.00 0.67 0.00 0.00 0.67
MTQA3 THOMAS @ 48TH ST 0.00 0.35 0.28 0.00 0.63
QUEEN CREEK
ZQRA3 QUEEN CR @ RITTENHO 0.00 0.39 0.00 0.00 0.39
ZQCA3 QUEEN CREEK LANDFIL 0.00 0.00 0.00 0.00 0.00
QNCA3 EMF @ QUEEN CREEK R 0.00 0.28 0.00 0.00 0.28
SCOTTSDALE
SDLA3 INDIAN BEND WASH @ 0.00 1.06 0.04 0.00 1.10
ZMDA3 MCDOWELL MOUNTAIN P 0.00 0.04 0.08 0.04 0.16
MPJA3 PIMA @ JOMAX 0.00 0.12 0.08 0.00 0.20
SUN CITY
MSWA3 SUN CITY WEST 0.00 0.00 0.08 0.00 0.08
SURPRISE
MDYA3 DYSART @ BELL RD 0.00 0.08 0.08 0.00 0.16
MCFA3 MCMICKEN FLOODWAY 0.00 0.00 0.00 0.04 0.04
TEMPE
MSPA3 SALT RIVER @ PRIEST 0.00 1.30 0.08 0.00 1.38
MTEA3 ASU SOUTH 0.00 1.10 0.04 0.00 1.14