Heavy rain from a thunderstorm caused a flash flood in Antelope Canyon.
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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.
Heavy rain from a thunderstorm caused a flash flood in Antelope Canyon.
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 27, 3:30 AM MST, 2 hours 45 minutes earlier.
AREA FORECAST DISCUSSION...RETRANSMISSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 330 AM MST MON AUG 27 2007 .SYNOPSIS...HIGH PRESSURE CENTERED EAST OF ARIZONA WILL CAUSE MOIST CONDITIONS AND DAILY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS TO CONTINUE THROUGH MIDWEEK. LATE IN THE WEEK...THE HIGH PRESSURE SYSTEM WILL SHIFT WESTWARD ACROSS ARIZONA...BRINGING A GRADUAL DRYING TREND. && .DISCUSSION...A WEAK SHORT WAVE WILL CONTINUE TO LIFT NORTHEAST THIS MORNING ACROSS THE AREA. THIS SYSTEM IS RESPONSIBLE FOR SUSTAINING AND INCREASING SHOWER AND THUNDERSTORMS ACTIVITY ACROSS NORTHERN SECTIONS OF THE STATE ALONG THE THE AZ/UT BORDER EARLY THIS MORNING. ANOTHER MIDLEVEL SYSTEM LOCATED OVER SOUTHERN CALIFORNIA WILL LIFT NORTHWEST OVER THE AREA DURING THE DAY. ANOTHER TROUGH APPROACHING FROM THE NORTHWEST WILL HELP INFLUENCE THE AREA WITH WEAK LIFT OVERNIGHT ALONG WITH STRONGER WINDS IN THE MID TO UPPER LEVELS DURING THE DAY TODAY. THE INCREASED WIND PROFILE WILL LEND TO HELPING STORMS THIS AFTERNOON BECOME MORE ORGANIZED WITH THE POSSIBILITY OF ISOLATED SEVERE THUNDERSTORMS MAINLY NORTH OF INTERSTATE 40 THIS AFTERNOON. THE UPPER LEVEL HIGH PRESSURE RIDGE WILL MOVE TO OUR WEST BY TUESDAY. THE FLOW ALOFT WILL SHIFT TO A WEST TO NORTHWEST DIRECTION. AS THIS HAPPENS THE FLOW WILL SHIFT TO A MORE NORTHERNLY DIRECTION ALLOWING DRIER MIDLEVEL AIR TO MOVE ACROSS NORTHERN ARIZONA. THE DRIER MIDLEVEL AIR WILL HELP BRING A GRADUAL DECREASE IN AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS ACROSS THE AREA. A WEATHER DISTURBANCE WILL MOVE ACROSS THE RIDGE ON FRIDAY AND DROP SOUTH INTO ARIZONA ON SATURDAY. THE MIDLEVEL COOLING ASSOCIATED WITH THIS TROUGH WILL HELP BRING AN INCREASE IN THUNDERSTORM ACTIVITY. && .AVIATION...FOR THE 12Z PACKAGE...AN UPPER LEVEL LOW PRESSURE SYSTEM WILL BRUSH NRN AZ TODAY. SCT SHRA/TSRA WILL CONTINUE ALONG THE NRN AZ BORDER THIS MORNING...WITH ISOLD MVFR CONDITIONS. AFTER 17Z...SCT-NMRS SHRA/TSRA WILL DEVELOP ACROSS NORTHERN AZ...WITH ISOLD IFR CONDITIONS POSSIBLE IN THE STRONGER STORMS. CONVECTIVE ACTIVITY IS EXPECTED TO DIMINISH AFT 02Z TUE. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS. && .FGZ WATCHES/WARNINGS/ADVISORIES...NONE. && TC/DL
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 1000 AM MST SUN AUG 26 2007 AZZ004>018-037>040-270700- 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- 1000 AM MST SUN AUG 26 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY EXPECT WIDELY SCATTERED SHOWERS AND THUNDERSTORMS TODAY WITH SOME SHOWERS LOCALLY HEAVY. BEST CHANCES FOR THUNDERSTORMS WILL BE IN NORTHEASTERN ARIZONA. THE MOST SIGNIFICANT THREAT TODAY WILL BE LOCALLY HEAVY RAINFALL WITH THE STRONGEST STORMS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY EXPECT CONTINUED THUNDERSTORMS AND SHOWERS...LOCALLY HEAVY RAINFALL IN SOME AREAS THROUGH WEDNESDAY. ON THURSDAY THE PATTERN SHIFTS AND NORTHEAST FLOW SHOULD BEGIN A DRYING TREND FOR NORTHERN ARIZONA LASTING THROUGH SATURDAY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The Cedar City radar (KICX), 153 km away, was scanning. The volume nearest the first event began at 13:16 UTC.
1 flash flood. Local standard time, as filed.
Five feet of water was flowing in the normally dry Antelope Canyon. This slot canyon is about 5 miles east of Page.
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: 59032.