A thunderstorm produced damaging winds about 10 miles south of the Petrified Forest Visitor Center.
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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 damaging winds about 10 miles south of the Petrified Forest Visitor Center.
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 27, 10:00 AM MST, 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 1000 AM MST SUN JUL 27 2008 .SYNOPSIS...PLENTIFUL MONSOON MOISTURE WILL PERSIST THROUGH MONDAY ACROSS NORTHERN ARIZONA...WITH SCATTERED SHOWERS AND THUNDERSTORMS CONTINUING. MOISTURE IS EXPECTED TO SLOWLY DECREASE FOR THE REMAINDER OF NEXT WEEK...WITH DAILY THUNDERSTORM ACTIVITY DECREASING AS WELL. MOISTURE WILL THEN INCREASE YET AGAIN BY THE END OF NEXT WEEK...INCREASING THE CHANCES FOR THUNDERSTORMS BY NEXT WEEKEND. && .DISCUSSION...THE NORTHLAND CONTINUES TO SIT UNDER A MOIST AIR MASS THIS MORNING. SURFACE DEWPOINTS REMAIN IN THE 50S ACROSS ALL OF THE ASOS SITES. WATER VAPOR LOOP THIS MORNING SHOWS A TROUGH MOVING NORTHWARD INTO SOUTHERN NEVADA...AND THIS FEATURE MAY AFFECT THE NORTHWESTERN SECTIONS OF THE CWA. WE ARE SEEING SOME OF THAT AS CONVECTION IS ALREADY OCCURRING ACROSS THE HIGH COUNTRY...MAINLY OVER THE NORTHWESTERN PARTS OF THE FORECAST AREA. AS A RESULT EXPECT MORE SHOWERS AND THUNDERSTORMS ONCE AGAIN WITH THE MAIN THREAT BEING LOCALLY HEAVY RAIN. HAVE MADE A FEW UPDATES TO THE GRIDS TO HIGHLIGHT THE NORTHWESTERN SECTIONS A LITTLE MORE. WILL BE SENDING THESE OUT SHORTLY. .PREVIOUS DISCUSSION (340 AM MST)...MODERATE TO HIGH PW VALUES AND A MOIST BOUNDARY LAYER WILL PERSIST ACROSS THE REGION THROUGH MONDAY. AFTER MONDAY...EXPECT A DECREASE IN MONSOON ACTIVITY THROUGH MUCH OF THIS WEEK. STEERING FLOW WILL BECOME WESTERLY...THEN NORTHWESTERLY AS THE MID-LEVEL HIGH SHIFTS SOUTHWEST. AT THE SAME TIME...500 MB TEMPERATURES WILL WARM A FEW DEGREES. THIS WILL SET UP A MORE STABLE SOUNDING...WITH A STEADILY DRIER BOUNDARY LAYER THROUGH THE WEEK. BY NEXT WEEKEND...DEEP LAYER FLOW WILL RETURN TO SOUTHERLY AND MONSOON ACTIVITY SHOULD INCREASE YET AGAIN. && .AVIATION...FOR THE 18Z PACKAGE...EXPECT SCATTERED SHOWERS AND THUNDERSTORMS TO DEVELOP ACROSS NORTHERN ARIZONA WITH IFR/MVFR CONDITIONS POSSIBLE IN THE STRONGEST STORMS. ACTIVITY WILL DECREASE SLOWLY AFTER 03Z-05Z. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS. && .FIRE WEATHER...SEE FIRE WEATHER FORECAST (FWFFGZ) FOR DISCUSSION OF DAYS 1 AND 2. TUESDAY THROUGH THURSDAY...WESTERLY FLOW WILL PRODUCE A DRIER AIRMASS OVER WESTERN ARIZONA WITH ISOLATED SHOWERS AND THUNDERSTORMS EACH DAY. A MOIST AND UNSTABLE AIRMASS WILL CONTINUE OVER EASTERN ARIZONA AND PRODUCE SCATTERED AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS. && PUBLIC.............42 AVIATION/FIRE WX...DB VISIT WEATHER.GOV/FLAGSTAFF FOR NORTHERN ARIZONA WEATHER INFORMATION.
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 1012 AM MST SUN JUL 27 2008 AZZ004>018-037>040-280100- 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- 1012 AM MST SUN JUL 27 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL ARIZONA...NORTH CENTRAL ARIZONA...NORTHEAST ARIZONA AND WEST CENTRAL ARIZONA. .DAY ONE...TODAY AND TONIGHT SHOWERS AND THUNDERSTORMS WILL ONCE AGAIN FORM ACROSS NORTHERN ARIZONA TODAY AS A MOIST AIR MASS SITS ATOP THE FORECAST AREA. LOOK FOR INITIATION TO OCCUR OVER THE HIGH TERRAIN THIS MORNING...WITH STORM MOVEMENT BEING ROUGHLY NORTHWEST TO SOUTHEAST. THE PRIMARY THREAT FROM THESE STORMS WILL ONCE AGAIN BE MODERATE TO HEAVY RAIN...WITH THE POSSIBILITY OF LOCALIZED FLOODING. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY MODELS ARE INDICATING A WEST TO NORTHWEST FLOW DEVELOPING ON MONDAY...BRINGING IN DRIER AIR ACROSS THE NORTHLAND THROUGH THE REST OF THE FORECAST PERIOD. THE RESULT WILL BE DAY-TO-DAY DECREASES IN SHOWER AND THUNDERSTORM CHANCES. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The Flagstaff radar (KFSX), 127 km away, was scanning. The volume nearest the first event began at 17:27 UTC.
1 thunderstorm wind. Local standard time, as filed.
Strong winds from a thunderstorm knocked down an eight inch diameter tree about 10 mile south of the Petrified Forest National Park.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2008Every state in 2008This day in weather historyWarnings in Arizona, July 2008
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: 126928.