Thunderstorms produced heavy rain over the eastern rim country north of Payson.
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.
Thunderstorms produced heavy rain over the eastern rim country north of Payson.
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 23, 9:10 AM MST, 4 hours 39 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 910 AM MST SAT JUL 23 2011 .SYNOPSIS...MOISTURE INCREASING FROM THE SOUTH WILL BRING A CHANCE FOR THUNDERSTORMS TODAY TO AREAS ALONG AND SOUTH OF THE MOGOLLON RIM. MOISTURE WILL CONTINUE TO INCREASE THROUGH SUNDAY WITH THE CHANCE FOR THUNDERSTORMS SPREADING ACROSS ALL OF ARIZONA. DAILY THUNDERSTORM CHANCES WILL CONTINUE THROUGH MUCH OF NEXT WEEK AS A MOIST SOUTHERLY FLOW CONTINUES. && .DISCUSSION...FORECAST REMAINS ON TRACK THIS MORNING AS INCREASING MOISTURE ACROSS THE STATE WILL LEAD TO AN UPTICK IN CONVECTIVE ACTIVITY THIS AFTERNOON. SATELLITE PRECIPITABLE WATER ESTIMATES SHOW THE AXIS OF 1 INCH PW VALUES STARTING TO MOVE INTO SOUTHERN SECTIONS OF OUR FORECAST AREA. SURFACE DEW POINTS ARE ALSO UP A GOOD 10-20 DEGREES IN MANY LOCATIONS. STILL EXPECT SCATTERED SHOWERS AND STORMS TO DEVELOP FROM THE MOGOLLON RIM SOUTHWARD ALONG THE AXIS OF BETTER MOISTURE WITH ONLY AN ISOLATED STORM POSSIBLE ELSEWHERE. NO MORNING UPDATES ARE PLANNED AT THIS TIME. && .PREVIOUS DISCUSSION (230 AM)...WV IMAGERY INDICATES A DRY SOUTHWESTERLY FLOW PERSISTING ACROSS THE SOUTHWEST AND INTO WESTERN AND NORTHERN ARIZONA. FARTHER EAST...THE SUBTROPICAL PLUME OF MOISTURE REMAINS ACROSS EASTERN AZ. A WEAK GULF OF CALIFORNIA MOISTURE SURGE CONTINUES AS SEEN IN THE YUMA VAD WIND PROFILE AND SFC OBSERVATIONS. DEWPOINTS ACROSS SRN AZ ARE SUBSTANTIALLY HIGHER THAN ELSEWHERE IN THE STATE AND THIS MOISTURE IS EXPECTED TO SLOWLY MOVE NORTHWARD TODAY. OF MORE IMPORTANCE IS TROPICAL CYCLONE DORA WHICH IS MOVING NWWD SOUTH OF THE TIP OF BAJA CALIFORNIA. THIS LOCATION AND TRACK IS FAVORABLE FOR GENERATING A MOISTURE SURGE UP THE GULF OF CALIFORNIA. SFC OBSERVATIONS FROM MEXICO INDICATE THIS SURGE MAY ALREADY BE IN PROGRESS AND MOISTURE SHOULD BEGIN TO INCREASE ACROSS AZ ON SUNDAY BRINGING MUCH BETTER CHANCES OF SHOWERS AND THUNDERSTORMS TO MUCH OF THE STATE. SCATTERED SHOWERS AND THUNDERSTORMS SHOULD CONTINUE THROUGH MIDWEEK. ANOTHER WEST COAST TROUGH IS FORECAST TO APPROACH THE AREA AND THIS COULD ONCE AGAIN DISRUPT THE NORTHWARD FLOW OF SUBTROPICAL MOISTURE BRINGING A DOWNWARD TREND IN CONVECTIVE ACTIVITY FOR THE LATTER HALF OF THE WEEK. && .AVIATION... FOR THE 18Z PACKAGE...LOOK FOR SCATTERED THUNDERSTORMS AND RAIN SHOWERS OVER AND SOUTH OF THE MOGOLLON RIM AND WHITE MOUNTAINS BETWEEN ABOUT 19 AND 01Z. EXPECT SCATTERED HIGH CLOUDINESS OVERNIGHT. VFR CONDITIONS WILL PREVAIL. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS. && .FGZ WATCHES/WARNINGS/ADVISORIES...NONE. && PUBLIC..................MCS/DB AVIATION................HOWARD FOR NORTHERN ARIZONA WEATHER INFORMATION VISIT WEATHER.GOV/FLAGSTAFF.
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 400 AM MST SAT JUL 23 2011 AZZ004>018-037>040-240700- 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- 400 AM MST SAT JUL 23 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY DRY AIR WILL REMAIN IN PLACE ACROSS THE WESTERN PORTIONS OF ARIZONA TODAY LIMITING THE CHANCES OF SHOWERS. ACROSS EASTERN ARIZONA MOISTURE WILL RESULT IN ANOTHER DAY OF SHOWERS AND THUNDERSTORMS. THE MAIN THREAT TODAY WILL BE MODERATE TO BRIEFLY HEAVY RAIN AND THE POTENTIAL FOR LOCALIZED FLOODING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY INCREASING MOISTURE CAN BE EXPECTED FOR THE LATTER HALF OF THE WEEKEND AND INTO EARLY NEXT WEEK RESULTING IN BETTER CHANCES OF SHOWERS AND THUNDERSTORMS ACROSS ALL OF NORTHERN ARIZONA. .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.
2 heavy rain. Local standard time, as filed.
The remote weather station on Promontory Point picked up 2.97 inches of rain in less than two hours.
The remote weather station on Promontory Point picked up 2.97 inches of rain in less than two hours.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2011Every state in 2011This day in weather historyWarnings in Arizona, July 2011
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: 335780, 335781.