Moisture moving back north across eastern Arizona fueled a thunderstorm that produced heavy rain over State Route 61 about 12 miles southwest of Concho.
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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.
Moisture moving back north across eastern Arizona fueled a thunderstorm that produced heavy rain over State Route 61 about 12 miles southwest of Concho.
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 Sep 4, 3:23 PM MST, 3 hours 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 323 PM MST THU SEP 4 2014 .SYNOPSIS... MONSOON MOISTURE IS RETURNING TO NORTHERN ARIZONA. EXPECT GENERALLY SCATTERED SHOWERS AND THUNDERSTORMS FRIDAY AND SATURDAY AFTERNOONS. DEEPER MONSOON MOISTURE SURGES NORTH INTO THE AREA LATE IN THE WEEKEND...WITH GREATER RAINFALL COVERAGE AND AMOUNTS EXPECTED FROM SUNDAY INTO MONDAY. && .DISCUSSION... SCATTERED TO NUMEROUS SHOWERS AND EMBEDDED THUNDERSTORMS AFFECTED MUCH OF NORTHERN ARIZONA TODAY. THIS WAS IN RESPONSE TO A WEAK DISTURBANCE INTERACTING WITH AN INITIAL INCREASE IN SUBTROPICAL MOISTURE. SHOWER ACTIVITY ASSOCIATED WITH THE DISTURBANCE WILL CONTINUE LATE THIS AFTERNOON ACROSS EAST CENTRAL AND NORTHEAST ARIZONA WITH LESS ACTIVITY ELSEWHERE. MOST SHOWER ACTIVITY SHOULD DIMINISH THIS EVENING WITH MORE ISOLATED SHOWERS POSSIBLE OVERNIGHT. SOME MID LEVEL DRYING AND SLIGHTLY MORE STABLE AIR MOVE INTO NORTHERN PORTIONS OF THE STATE FRIDAY RESULTING IN LESS THUNDERSTORM ACTIVITY. ISOLATED COVERAGE IS EXPECTED ACROSS THE FAR NORTH WITH LOW END SCATTERED ACTIVITY ALONG AND SOUTH OF THE MOGOLLON RIM. MOISTURE SLOWLY INCREASES SATURDAY FOR MORE SCATTERED STORM COVERAGE AREA-WIDE. A SUBSTANTIAL SUBTROPICAL MOISTURE SURGE IS EXPECTED TO MOVE INTO NORTHERN ARIZONA SUNDAY AND MONDAY. PRECIPITABLE WATER VALUES ARE FORECAST TO REACH AN INCH ACROSS MOST AREAS WITH PW IN EXCESS OF AN INCH AND A HALF IN THE FAR SOUTHERN REACHES OF OUR FORECAST AREA. THE AVAILABILITY OF MOISTURE AND MARGINAL INSTABILITY SHOULD LEAD TO MORE WIDESPREAD SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN AND LOCALIZED FLOODING OF MOST CONCERN. STAY TUNED TO THE FORECAST OVER THE NEXT COUPLE OF DAYS AS DETAILS OF THIS EVENT COME IN TO LINE. MOISTURE LINGERS THROUGH TUESDAY OF NEXT WEEK BEFORE A DRIER NORTHWEST FLOW SETS UP THE MIDDLE OF NEXT WEEK. && .AVIATION... FOR THE 00Z PACKAGE...EXPECT SHOWER AND THUNDERSTORM ACTIVITY TO DECREASE AFTER 02Z FRIDAY...WITH VFR CONDITIONS OVERNIGHT. SHOWER AND THUNDERSTORM ACTIVITY EXPECTED TO INCREASE AGAIN AFTER 18Z FRIDAY. BRIEF PERIODS OF MVFR CONDITIONS POSSIBLE UNDER THE STRONGEST STORMS. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS. && .FGZ WATCHES/WARNINGS/ADVISORIES...NONE. && PUBLIC.........MCS AVIATION.......RR FOR NORTHERN ARIZONA WEATHER INFORMATION VISIT WEATHER.GOV/FLAGSTAFF
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 326 PM MST THU SEP 4 2014 AZZ004>018-037>040-051245- 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- 326 PM MST THU SEP 4 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO... NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED THUNDERSTORMS WILL AFFECT EAST CENTRAL AND NORTHEAST ARIZONA THROUGH EARLY THIS EVENING WITH LESS ACTIVITY ELSEWHERE. STORM MOTIONS GENERALLY FROM SOUTHWEST TO NORTHEAST. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ON SUNDAY AND MONDAY...VERY HIGH AMOUNTS OF MONSOON MOISTURE ARE EXPECTED TO BRING NUMEROUS SHOWERS AND THUNDERSTORMS TO NORTHERN ARIZONA. SHOWERS AND STORMS WILL BE CAPABLE OF PRODUCING HEAVY RAINFALL CAUSING AREAS OF FLOODING. .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.
A trained spotter reported 1.02 inches of rain in less than 10 minutes. Lots of small hail also fell during the thunderstorm.
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, September 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: 542317.