A thunderstorm produced heavy rain and flash flooding on Highway 89 in Oak Creek Canyon near Pine Flats Campground.
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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.
A thunderstorm produced heavy rain and flash flooding on Highway 89 in Oak Creek Canyon near Pine Flats Campground.
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 Jul 4, 3:55 PM MST, 4 hours 5 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 355 PM MST FRI JUL 04 2014 .SYNOPSIS...EXPECT A HIGH CHANCES FOR SHOWER AND THUNDERSTORM ACTIVITY INTO THE HOLIDAY WEEKEND...SOME STORMS MAY PRODUCE LOCALLY HEAVY RAIN. TEMPERATURES WILL SLOWLY DECREASE AND RETURN TO SEASONAL NORMAL VALUES AS CLOUD COVER AND RAINFALL INCREASE. && .DISCUSSION...AS EXPECTED...THE LARGE RAIN-COOLED BOUNDARY LAYER SOUTH OF THE RIM AND OVER THE CENTRAL ARIZONA DESERTS HAS HAMPERED CONVECTION SIGNIFICANTLY. AREAS ALONG AND NORTH OF THE RIM HAVE BEEN ACTIVE...BUT SKINNY CAPE HAS MADE FOR SHORT LIVED SYSTEMS WITH WEAK UPDRAFTS. THIS PATTERN DOES NOT CHANGE MUCH OVER THE WEEKEND AND INTO NEXT WEEK...THE ONLY DIFFERENCE BEING AREAS TO THE SOUTH OF THE RIM WILL LIKELY BE ACTIVE AGAIN BY TOMORROW AS THE BOUNDARY LAYER REHEATS. && .AVIATION...FOR THE 00Z PACKAGE...EXPECT SCT-NMRS SHRA/TSRA WITH ISOLD +TSRA CAUSING MVFR VSBY. THUNDERSTORMS MOST NUMEROUS OVER HIGHER TERRAIN. THUNDERSTORM ACTIVITY WILL DECREASE SOMEWHAT AFTER AFTER 03Z...WITH SCT -SHRA/-TSRA EXPECTED. SCT-NMRS SHRA/TSRA WILL DEVELOP AGAIN ON SATURDAY AFTER 18Z. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS. && .FIRE WEATHER...DEEP ATMOSPHERIC MOISTURE HAS MOVED INTO THE AREA. THUNDERSTORMS WILL BE LIKELY OVER MUCH OF NORTHERN ARIZONA THROUGH THE WEEKEND...MOST NUMEROUS OVER THE HIGHER TERRAIN. THE MOIST ATMOSPHERE WILL INHIBIT THE FORMATION OF STRONG OUTFLOW WINDS SOMEWHAT...AND INCREASE THE LIKELIHOOD OF LOCALLY HEAVY RAIN. MONDAY THROUGH WEDNESDAY...AMPLE MOISTURE WILL REMAIN IN PLACE OVER ARIZONA...WITH A GOOD CHANCE OF SHOWERS AND THUNDERSTORMS EACH DAY. LOCALLY HEAVY RAINFALL POSSIBLE WITH THESE STORMS. && .FGZ WATCHES/WARNINGS/ADVISORIES...NONE. && PUBLIC.........PETERSON AVIATION.......BAK FIRE WEATHER...BAK FOR NORTHERN ARIZONA WEATHER INFORMATION VISIT WEATHER.GOV/FLAGSTAFF
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 940 AM MST FRI JUL 04 2014 AZZ004>018-037>040-050730- KAIBAB PLATEAU-MARBLE AND GLEN CANYONS-GRAND CANYON COUNTRY- COCONINO PLATEAU-YAVAPAI COUNTY MOUNTAINS- NORTHEAST PLATEAUS AND MESAS HWY 264 NORTHWARD-CHINLE VALLEY- CHUSKA MOUNTAINS AND DEFIANCE PLATEAU- LITTLE COLORADO RIVER VALLEY IN COCONINO COUNTY- LITTLE COLORADO RIVER VALLEY IN NAVAJO COUNTY- LITTLE COLORADO RIVER VALLEY IN APACHE COUNTY- WESTERN MOGOLLON RIM-EASTERN MOGOLLON RIM-WHITE MOUNTAINS- NORTHERN GILA COUNTY-YAVAPAI COUNTY VALLEYS AND BASINS- OAK CREEK AND SYCAMORE CANYONS-BLACK MESA AREA- NORTHEAST PLATEAUS AND MESAS SOUTH OF HWY 264- 940 AM MST FRI JUL 04 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO... NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY AND TONIGHT A CLOUDY START TO THE DAY SOUTH OF THE MOGOLLON RIM...INCLUDING YAVAPAI COUNTY...WILL MAKE FOR A SLOW START FOR CONVECTION TODAY. AREAS ALONG AND NORTH OF THE MOGOLLON RIM WILL SEE STORMS DEVELOPING BY LATE MORNING...LIKELY FIRST DEVELOPING OVER THE EASTERN RIM AND WHITE MOUNTAINS. THESE STORMS WILL MOVE WEST AND NORTHWEST THROUGH THE DAY...WITH SOME DEVELOPMENT SOUTH OF THE RIM LATE IN THE DAY OR THIS EVENING. MUCH HIGHER MOISTURE IN THE STATE WILL MEAN THAT SOME STORMS MAY PRODUCE VERY HEAVY RAIN...WITH THE THREAT OF HIGH WINDS AND HAIL BEING DIMINISHED. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY EXPECT AN ACTIVE PERIOD THROUGH THE HOLIDAY WEEKEND WITH WIDESPREAD STORM ACTIVITY AND AN ENHANCED THREAT OF LOCALLY HEAVY RAINFALL. STORM ACTIVITY WILL DECREASE SLIGHTLY AS WE HEAD INTO THE MIDDLE PART OF NEXT WEEK. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The national radar mosaic for the moment the first event began.
1 heavy rain. Local standard time, as filed.
Between a half inch and one inch of rain fell over Highway 89 in Oak Creek Canyon. Arizona Department of Transportation reported water on the highway at mile post 390.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2014Every state in 2014This day in weather historyWarnings in Arizona, July 2014
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: 534988.