1 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 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 22, 9:30 AM MST, 4 hours 45 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 930 AM MST TUE AUG 22 2006 .SYNOPSIS...A MOIST SOUTHEASTERLY FLOW WILL CONTINUE OVER THE STATE THROUGH THE WEEK. THIS WILL BRING AN INCREASE IN THUNDERSTORM COVERAGE TO NORTHERN ARIZONA TODAY AND WEDNESDAY. MOISTURE WILL CONTINUE OVER THE AREA THROUGH SUNDAY...WITH THE CHANCE OF THUNDERSTORMS CONTINUING. && THIS MORNING SATELLITE PRECIPITABLE WATER SHOW HIGHER WATER VALUES HAVE MOVED WESTWARD ACROSS COCONINO COUNTY OVERNIGHT. THERE IS AN EASTERLY WAVE EVIDENT OVER SOUTH CENTRAL AZ...WITH WIDELY SCATTERED TSRA ALREADY OCCURRING SOUTH OF THE WHITE MTNS. THERE IS QUITE A BIT OF CLOUD COVER EAST OF A LINE FROM KAYENTA TO PHX...AND THIS MAY DELAY THE START OF STORMS TIL MID AFTERNOON IN THESE AREAS. OTHERWISE...SCATTERED STORMS ARE EXPECTED TO DEVELOP BY EARLY AFTERNOON OVER THE HIGHER TERRAIN...WITH SLOW MOVING STORMS PRODUCING LOCALLY HEAVY RAIN. STORMS ARE AGAIN EXPECTED TO FALL OF THE RIM INTO NRN GILA AND YAVAPAI COUNTIES DURING THE AFTERNOON. FOR TONIGHT...H7 AND H5 STREAMLINES INDICATED A WEAK CYCLONIC CIRCULATION WILL MOVE OVER CENTRAL NAVAJO AND APACHE COUNTIES ALONG WITH SOME VERY HIGH H7-H5 THETA E VALUES. SO WILL LIKELY BE RAISING AND EXTENDING LONGER IN TIME THE RAINFALL CHANCES FOR NAVAJO...APACHE AND NRN GILA COUNTIES. A QUICK LOOK AT TODAYS 12Z GFS THROUGH 12Z SUNDAY LOOKS LIKE THE MONSOON MOISTURE WILL RESIDE OVER MUCH OF THE STATE...ESPECIALLY AREA EAST OF A LINE FROM PAGE TO PAYSON. DL 3 AM MST DISCUSSION... A MOIST SOUTH TO SOUTHEAST FLOW WILL CONTINUE ACROSS NORTHERN ARIZONA THROUGH THE WEEK. PWS WILL RANGE FROM 0.8 TO 1.50 INCHES. DURING THE SECOND HALF OF THE WEEK AS HIGH PRESSURE SHIFTS OVER THE SOUTHERN HALF OF THE STATE WITH A TROUGH ALONG THE WEST COAST...THE GFS INDICATES THAT A WESTERLY FLOW ALOFT WILL DEVELOP AND BRING SOME MID-LEVEL DRYING TO THE NORTH AND NORTHWEST OF FLAGSTAFF. ALTHOUGH THE FLOW ALOFT WILL BE WEAK...THERE WILL NOT BE MUCH DRYING IN THE LOW LEVELS...SO NOT EXPECTING ANY SIGNIFICANT DOWN SWING IN CONVECTIVE ACTIVITY. BY LATE SUNDAY INTO MONDAY...AFTER A DISTURBANCE CROSSES THE SOUTHERN GULF OF CALIFORNIA...THE GFS INDICATES THAT THERE WILL BE ANOTHER UPSWING IN MOISTURE AND THUNDERSTORM ACTIVITY. SO FOR THE EXTENDED WE DECIDED TO NOT SHOW A DOWN TURN IN CONVECTIVE ACTIVITY...BUT INSTEAD JUST CONTINUE WITH SCATTERED TSTMS ACROSS THE AREA DURING THE AFTERNOON AND EVENING HOURS. && .AVIATION...AVIATION...FOR THE 18Z PACKAGE...SCATTERED THUNDERSTORMS ARE ANTICIPATED TO DEVELOP ACROSS THE HIGHER TERRAIN OF NORTHERN ARIZONA BY 18Z AND SPREAD INTO LOWER ELEVATIONS DURING THE AFTERNOON AND EARLY EVENING. STORM ACTIVITY SHOULD THEN END BY AROUND 04Z TONIGHT. THE STRONGEST STORMS WILL CONTAIN CEILINGS NEAR OR BELOW 4 KFT AGL AND IFR VISIBILITIES. THE PROBABILITY OF OCCURRENCE MAY NOT BE HIGH ENOUGH TO WARRANT THE INCLUSION OF TS IN EACH OF THE TAFS. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS. MCCOLLUM .FGZ WATCHES/WARNINGS/ADVISORIES...NONE. && TC/KD
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 1000 AM MST TUE AUG 22 2006 AZZ004>018-037>040-230700- 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- 1000 AM MST TUE AUG 22 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY THE MAIN WEATHER THREAT TODAY IS LOCALLY HEAVY RAIN FROM SLOW MOVING THUNDERSTORMS. SCATTERED STORMS ARE EXPECTED TO DEVELOP BY EARLY AFTERNOON OVER THE HIGHER TERRAIN. STORMS ARE THEN EXPECTED TO MOVE OFF THE RIM INTO NRN GILA AND YAVAPAI COUNTIES DURING THE AFTERNOON. THERE IS QUITE A BIT OF CLOUD COVER EAST OF A LINE FROM KAYENTA TO PHOENIX...AND THIS MAY DELAY THE START OF STORMS TIL MID AFTERNOON IN THESE AREAS. AN WEAK UPPER LEVEL DISTURBANCE IS FORECAST TO MOVE OVER NAVAJO...APACHE AND NRN GILA COUNTIES TONIGHT. THIS WILL ENHANCE THE CHANCES OF OVERNIGHT SHOWERS AND THUNDERSTORMS IN THESE AREAS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A MOIST MONSOON AIRMASS IS EXPECTED TO REMAIN OVER THE NORTHLAND FOR THE NEXT SEVERAL DAYS...LEADING TO SCATTERED AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS. .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
157 PM MST TUE AUG 22 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0540 PM HAIL BLACK CANYON CITY 34.06N 112.11W
08/21/2006 E1.00 INCH YAVAPAI AZ PUBLIC
&&The Flagstaff radar (KFSX), 93 km away, was scanning. The volume nearest the first event began at 21:13 UTC.
1 flash flood. Local standard time, as filed.
Flash flooding in the Washington Park and Beaver Valley areas north of Payson caused the closure of Beaver Flat Road. The came up 3 to 4 feet in the low water crossings.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2006Every state in 2006This day in weather historyWarnings in Arizona, August 2006
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: 5529835.