A funnel cloud was seen just east of Flagstaff from Winona.
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.
A funnel cloud was seen just east of Flagstaff from Winona.
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 30, 10:10 AM MST, 4 hours 18 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 1010 AM MST FRI AUG 30 2013 .SYNOPSIS... DEEP MONSOON MOISTURE WILL REMAIN ANCHORED OVER ARIZONA THROUGH SUNDAY...RESULTING IN SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS. FROM LABOR DAY THROUGH MUCH OF NEXT WEEK...A RETURN TO MORE TYPICAL MONSOON ACTIVITY IS EXPECTED. && .DISCUSSION...DEEP MONSOON MOISTURE REMAINS IN PLACE THIS MORNING...WITH SATELLITE PW ESTIMATES OF 1"+ ALONG THE MOGOLLON RIM...TO OVER 2" IN SOUTHERN YAVAPAI COUNTY. THESE VALUES ARE CLOSE TO THE HIGHEST THAT WE HAVE SEEN THIS SUMMER. THE MID LEVEL DISTURBANCE THAT WE HAVE BEEN TRACKING FOR THE PAST FEW DAYS IN NOW LOCATED ACROSS EAST CENTRAL AZ...AND IS FORECAST TO SHIFT NORTHWARD INTO NW AZ BY SATURDAY AND SUNDAY. WITH THE GROUND SATURATED IN MANY AREAS...WE HAVE ISSUED A FLASH FLOOD WATCH WEST OF A LINE FROM SAINT JOHNS TO PAGE...INCLUDING PRESCOTT...PAYSON...FLAGSTAFF...PAGE AND THE GRAND CANYON. THE WATCH IS IN EFFECT THROUGH LATE THIS EVENING FOR MOST AREAS...BUT CONTINUES THROUGH LATE SATURDAY EVENING ACROSS NW COCONINO COUNTY...INCLUDING GRAND CANYON...SUPAI AND PAGE. UPDATES WERE SENT A SHORT TIME AGO. .PREV DISCUSSION...(346 AM MST)... SHOWER COVERAGE AND INTENSITY HAS WANED EARLY THIS MORNING ACROSS NORTHERN ARIZONA...THOUGH ANOTHER ROUND OF THUNDERSTORMS IS EXPECTED BY THIS AFTERNOON. WITH DEEP MONSOONAL MOISTURE IN PLACE AND WEAK STORM MOTION...THE THREAT FOR FLASH FLOODING IS AGAIN LIKELY TO BE THE MAIN CONCERN WITH TODAY'S STORMS. THE GREATEST CHANCES FOR RAIN WILL REMAIN FROM THE ALONG THE MOGOLLON RIM TO THE SOUTH AND WEST. A GRADUAL REDUCTION IN MOISTURE/PRECIPITABLE WATER VALUES IS LIKELY OVER THE COURSE OF THE WEEKEND AND INTO THE MIDDLE OF NEXT WEEK...THOUGH DAILY CHANCES FOR SHOWERS AND THUNDERSTORMS WILL PERSIST. NEAR SEASONABLE TEMPS ANTICIPATED. && .AVIATION... FOR THE 18Z PACKAGE...SHRA/TSRA WILL DEVELOP THIS AFTERNOON AND CONTINUE THROUGH THE EVENING. STORMS WILL BE MOST NUMEROUS ALONG AND WEST OF A LINE FROM KPGA - KINW - KSOW...WHERE PREDOMINANTLY MVFR CONDITIONS WILL PREVAIL WITH ISOLD IFR/LIFR WITHIN THE STRONGER STORMS. STORMS WILL DIMINISH IN COVERAGE AFTER 05Z...WITH ISOLATED TO SCATTERED -SHRA/-TSRA CONTINUING OVERNIGHT. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS. && .FGZ WATCHES/WARNINGS/ADVISORIES...FLASH FLOOD WATCH THROUGH MIDNIGHT MST TONIGHT FOR AZZ008-012>018-037-038. FLASH FLOOD WATCH THROUGH 11 PM MST SATURDAY NIGHT FOR AZZ004>007 && PUBLIC.........JJ/KD AVIATION.......BK FOR NORTHERN ARIZONA WEATHER INFORMATION VISIT WEATHER.GOV/FLAGSTAFF
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 956 AM MST FRI AUG 30 2013 AZZ004>018-037>040-310630- 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- 956 AM MST FRI AUG 30 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO... NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY AND TONIGHT A FLASH FLOOD WATCH IS IN EFFECT FOR YAVAPAI...MOST OF COCONINO...NORTHERN GILA....SOUTHERN NAVAJO AND SOUTHERN APACHE COUNTIES. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY. THE MAIN THREAT IS THE POTENTIAL FOR LOCALIZED FLASH FLOODING...ESPECIALLY IN LOCATIONS WHICH HAVE ALREADY RECEIVED HEAVY RAINFALL OVER THE PAST SEVERAL DAYS. IN PARTICULAR...PORTIONS OF CENTRAL ARIZONA INCLUDING MUCH OF YAVAPAI AND NORTHERN GILA COUNTIES RECEIVED HEAVY RAIN LAST NIGHT... AND WILL BE AT GREATER RISK. THUNDERSTORM AND SHOWER ACTIVITY WILL LIKELY LINGER INTO THE OVERNIGHT HOURS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY A FLASH FLOOD WATCH REMAINS IN EFFECT FOR NORTHWEST COCONINO COUNTY INCLUDING THE GRAND CANYON THROUGH SATURDAY EVENING. SIGNIFICANT DAILY SHOWER AND THUNDERSTORM DEVELOPMENT IS ANTICIPATED TO CONTINUE THROUGH THE WEEKEND...WITH A SLIGHT DROP- OFF IN ACTIVITY AS WE HEAD TOWARD THE MIDDLE 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
912 AM MST FRI AUG 30 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0643 PM FLASH FLOOD 5 S PAYSON 34.17N 111.33W
08/29/2013 GILA AZ TRAINED SPOTTER
SEVERE FLOODING REPORTED IN ROUND VALLEY. ONE VEHICLE
STUCK IN FLOODED WASH AND ONE ROAD INTO MIDDLE ROUND
VALLEY IMPASSABLE
&&
EVENT NUMBER FGZ1300078
BAKPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
917 AM MST FRI AUG 30 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0916 PM FLASH FLOOD 10 SE CONGRESS 34.06N 112.73W
08/29/2013 YAVAPAI AZ LAW ENFORCEMENT
CONSTELLATION RD WASHED OUT NORTH OF WICKENBURG
&&
EVENT NUMBER FGZ1300079
BAKPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
1008 AM MST FRI AUG 30 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0545 PM TSTM WND DMG 5 S CONGRESS 34.09N 112.85W
08/29/2013 YAVAPAI AZ TRAINED SPOTTER
DELAYED REPORT...NUMEROUS TREES UP TO 14 IN DIAMETER
DOWNED.
&&
EVENT NUMBER FGZ1300080
BAKThe Flagstaff radar (KFSX), 74 km away, was scanning. The volume nearest the first event began at 21:28 UTC.
1 funnel cloud. Local standard time, as filed.
The funnel cloud started as a large bowl shaped cloud, lowered, and then sharpened into a tight funnel and then dissipated.
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: 474829.