Heavy rain caused flash flooding in Chino Valley.
Every event with a place to put it. Tap one for its entry below.
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.
Heavy rain caused flash flooding in Chino Valley.
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 15, 10:30 AM MST, 4 hours 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 1030 AM MST WED AUG 15 2007 .SYNOPSIS...AFTERNOON AND EVENING THUNDERSTORMS WILL CONTINUE THROUGH FRIDAY AS MONSOON MOISTURE REMAINS ACROSS THE AREA. BY SATURDAY DRIER SOUTHWESTERLY FLOW ALOFT WILL DECREASE CHANCES FOR THUNDERSTORMS IN NORTHWESTERN ARIZONA THROUGH SUNDAY. && .DISCUSSION...LATEST RADAR IMAGERY INDICATES THUNDERSTORMS BEGINNING TO DEVELOP OVER THE HIGHER TERRAIN ONCE AGAIN THIS MORNING. EXPECTING ACTIVITY TO QUICKLY EXPAND INTO SCATTERED TO NUMEROUS COVERAGE OVER THE HIGHER TERRAIN AND MOVE OFF TO THE NORTHWEST. THE GREATEST THUNDERSTORM COVERAGE MAY TAKE SHAPE ACROSS THE RIM FIRST AND THEN LATER THIS AFTERNOON OVER WESTERN YAVAPAI AND WESTERN COCONINO COUNTY AS THE OUTFLOW BOUNDARIES OVER THE HIGHER TERRAIN MOVE WEST OVER THESE AREAS. WILL BE UPDATING GRIDS SHORTLY TO INCREASE PRECIP CHCS IN SOME AREAS TO LIKELY FOR THIS AFTERNOON. && .AVIATION...FOR THE 18Z PACKAGE...EXPECT SCT SHRA/TSRA WITH MVFR CONDITIONS IN THE STRONGER STORMS. WINDS WILL GENERALLY BE LIGHT AND VARIABLE ALTHOUGH GUSTY AND VARIABLE TO AROUND 25 KTS IN THE VICINITY OF THUNDERSTORMS. AFT 03Z...ISOLD-SCT -SHRA/-TSRA TAPERING OFF OVERNIGHT. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS. && .FGZ WATCHES/WARNINGS/ADVISORIES...NONE. && TC/DJO
HAZARDOUS WEATHER OUTLOOK...UPDATED RETRANSMISSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 1020 AM MST WED AUG 15 2007 AZZ004>018-037>040-160700- 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- 1020 AM MST WED AUG 15 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY A MOIST UNSTABLE ATMOSPHERE WILL BE OVER NORTHERN ARIZONA ONCE AGAIN TODAY. STORMS WILL FIRE EARLIER TODAY THAN USUAL AS IT IS FAIRLY UNSTABLE. IT APPEARS THUNDERSTORM COVERAGE TODAY WILL BE SCATTERED TO NUMEROUS OVER THE HIGHER TERRAIN AND WESTERN SECTIONS OF YAVAPAI AND COCONINO COUNTIES. THE MAIN WEATHER THREAT TODAY WILL BE ISOLATED STRONG THUNDERSTORMS PRODUCING SMALL HAIL AND VERY HEAVY RAIN. SOME LOCALIZED FLASH FLOODING IS POSSIBLE TODAY ACROSS NORTHERN ARIZONA. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A MOIST AND UNSTABLE AIR MASS WILL BRING DAILY SHOWERS AND THUNDERSTORMS AND AN ISOLATED THREAT OF SEVERE WEATHER. THERE IS THE POSSIBILITY OF A DRYING TREND BEGINNING ON SUNDAY AS A WEATHER DISTURBANCE MOVES ACROSS THE NORTHERN ROCKIES. THERE IS STILL A DEGREE OF UNCERTAINTY IN THIS DUE TO THE TROPICAL STORM DEVELOPING IN THE GULF OF MEXICO...WHICH COULD HAVE IMPACT ON ARIZONA WEATHER LATER THIS WEEK FIRST PART OF NEXT WEEK. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
242 PM MST WED AUG 15 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0230 PM HAIL CHINO VALLEY 34.76N 112.46W
08/15/2007 M1.00 INCH YAVAPAI AZ TRAINED SPOTTER
&&
TOMCThe Flagstaff radar (KFSX), 117 km away, was scanning. The volume nearest the first event began at 21:46 UTC.
1 flash flood. Local standard time, as filed.
Numerous city streets flooded in Chino Valley and high water flowing across many low water crossings.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2007Every state in 2007This day in weather historyWarnings in Arizona, August 2007
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: 58403.