Thunderstorms produced heavy rain and flash flooding north of Wickenburg in Yavapai County.
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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 FGZ wrote it up.
Thunderstorms produced heavy rain and flash flooding north of Wickenburg in Yavapai County.
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 Flagstaff, AZ wrote its last area forecast discussion before the first event at Aug 24, 4:05 AM MST, 3 hours 25 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 405 AM MST SAT AUG 24 2013 .SYNOPSIS...TROPICAL MOISTURE WILL INCREASE ACROSS ARIZONA THROUGH EARLY NEXT WEEK. THIS WILL RESULT IN WIDESPREAD AND FREQUENT SHOWERS AND THUNDERSTORMS THIS WEEKEND...AND INTO NEXT WEEK. THE HEAVIEST RAINFALL IS ANTICIPATED ION SUNDAY...AND A FLASH FLOOD WATCH IS IN EFFECT FOR WESTERN ARIZONA. && .DISCUSSION...MOISTURE IS INCREASING RAPIDLY FROM SOUTH TO NORTH THIS MORNING. SHOWERS AND THUNDERSTORMS HAVE BEEN INCREASING THROUGH THE NIGHT AS OUTFLOWS FROM THE SOUTH MOVE INTO OUR AREA. THERE IS ALSO SOME ASSISTANCE BY A WEAK S/WV MOVING THROUGH SOUTHERN NEVADA. IN THE LARGER PICTURE...THE COMBINATION OF A DECAYING TROPICAL SYSTEM OVER THE SOUTHERN GULF OF CALIFORNIA AND LOW PRESSURE OFF THE PACIFIC NORTHWEST IS A RECIPE FOR GULF SURGES. THIS MECHANISM WILL FEED OUR CONVECTION FOR THE NEXT SEVERAL DAYS. ADDING TO THIS WILL BE THE REMNANTS...MAINLY UPPER LEVEL...OF IVO. THIS FEATURE WILL AFFECT THE AREA SUNDAY AND MONDAY AND WILL ADD DYNAMICS TO THE MIX OF DEEP MOISTURE AND MODEST INSTABILITY. FLASH FLOOD WATCHES ARE IN EFFECT SUNDAY FOR THE REASONS LISTED ABOVE...AND THIS LOOKS REASONABLE. THERE IS A REAL POSSIBILITY THAT ALL THIS MOISTURE WILL RESULT IN WIDESPREAD CLOUD COVER AND DRIZZLE WITH A RAIN-COOLED BOUNDARY LAYER THAT IS UNSTABLE TO CONVECT. HOWEVER...WITH THE ADDITION OF DYNAMICS...THE FACTORS AGAINST CONVECTION COULD BE OVERCOME. DEEP MOISTURE WILL THEN STAY AROUND WELL INTO NEXT WEEK...WITH A SLIGHT DOWNWARD TREND EACH DAY. && .AVIATION...FOR THE 12Z PACKAGE...WDLY SCT SHRA/TSRA TO CONTINUE THROUGH THE MORNING AND SPREAD NORTHWARD THROUGH MOST OF NORTHERN AZ...WITH INCREASINGLY STRONG STORMS AFTER 18Z. UNTIL 18Z...ISOLD MVFR CONDITIONS POSSIBLE IN THE STRONGER STORMS. AFTER 18Z...ISOLD IFR/MVFR CONDITIONS AND WIND GUSTS TO 35 KTS WITH THE STRONGER STORMS. WIDESPREAD SHRA/ISOLD TSRA CONTINUING THROUGH 12Z SUNDAY. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS. && .FGZ WATCHES/WARNINGS/ADVISORIES...FLASH FLOOD WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING FOR AZZ004-006>008-015-037-038. && PUBLIC.........PETERSON AVIATION.......DJO FOR NORTHERN ARIZONA WEATHER INFORMATION VISIT WEATHER.GOV/FLAGSTAFF
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 610 AM MST SAT AUG 24 2013 AZZ004>018-037>040-250700- WESTERN MOGOLLON RIM-GRAND CANYON COUNTRY-YAVAPAI COUNTY MOUNTAINS- YAVAPAI COUNTY VALLEYS AND BASINS-OAK CREEK AND SYCAMORE CANYONS- MARBLE AND GLEN CANYONS-KAIBAB PLATEAU-COCONINO PLATEAU- NORTHEAST PLATEAU AND MESAS HWY 264 NORTHWARD- NORTHEAST PLATEAU AND MESAS SOUTH OF HWY 264- CHINLE VALLEY-CHUSKA MOUNTAINS AND DEFIANCE PLATEAU- BLACK MESA AREA-LITTLE COLORADO RIVER VALLEY IN COCONINO COUNTY- LITTLE COLORADO RIVER VALLEY IN NAVAJO COUNTY- LITTLE COLORADO RIVER VALLEY IN APACHE COUNTY- EASTERN MOGOLLON RIM-WHITE MOUNTAINS-NORTHERN GILA COUNTY- 610 AM MST SAT AUG 24 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY DEEP TROPICAL MOISTURE WILL PUSH NORTHWARD ACROSS OUR AREA TODAY. SHOWER AND THUNDERSTORM ACTIVITY WILL INCREASE AS A RESULT. STRONG STORMS ARE ALREADY ONGOING IN SOUTHWEST YAVAPAI COUNTY...WITH SOME FLOODING AS A RESULT. THE MOST ACTIVE AREAS TODAY WILL LIKELY BE PORTIONS OF NORTHERN GILA...YAVAPAI AND COCONINO COUNTIES. COOLER AND CLOUDIER CONDITIONS TO THE EAST WILL PREVENT STRONGER STORMS FROM FORMING. VERY HEAVY RAINFALL IS THE PRIMARY THREAT TODAY. SOME STORMS MAY PRODUCE HAIL...ALTHOUGH MOST HAIL WILL BE ON THE SMALLER SIDE. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY MOISTURE WILL CONTINUE TO INCREASE TONIGHT AND SUNDAY...WITH A WEATHER DISTURBANCE ON SUNDAY AIDING IN HEAVY RAIN DEVELOPMENT. A FLASH FLOOD WATCH HAS BEEN ISSUED FOR MUCH OF COCONINO AND YAVAPAI COUNTIES FOR SUNDAY AS A RESULT. HEAVY RAINS WILL CONTINUE MONDAY AND POSSIBLY TUESDAY...BEFORE A SLOW DRYING TREND DEVELOPS FOR THE REMAINDER OF NEXT WEEK. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The Phoenix radar (KIWA), 126 km away, was scanning. The volume nearest the first event began at 14:30 UTC.
1 flash flood. Local standard time, as filed.
Portions of Rincon Road were closed along Martinez Wash due to flash flooding.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2013Every state in 2013This day in weather historyWarnings in Arizona, August 2013
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: 474468.