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 12, 2:45 PM MST, 4 hours 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 245 PM MST SAT AUG 12 2006 .SYNOPSIS...A MOIST AND UNSTABLE AIRMASS WILL REMAIN OVER ARIZONA INTO THE EARLY PART OF NEXT WEEK. DRIER AIR ALOFT WILL MOVE INTO WESTERN PARTS OF THE STATE NEXT WEEK LEADING TO A DECREASING TREND OF THUNDERSTORMS IN THAT AREA...WHILE AFTERNOON AND EVENING THUNDERSTORMS WILL CONTINUE ON A DAILY BASIS IN THE EAST. && .DISCUSSION...AFTERNOON RADAR IMAGERY SHOWING ISOLATED TO SCATTERED THUNDERSTORM ACTIVITY OVER MAINLY CENTRAL AND EASTERN PORTIONS OF THE STATE. DRIER AIR FROM THE WEST APPEARS TO BE LIMITING THUNDERSTORM GROWTH WEST OF SELIGMAN AS EXPECTED. HEAVY RAIN HAS BEEN THE ISSUE WITH STORMS TODAY. LOW INERTIAL INSTABILITY ALOFT AND STRONGER WINDS ARE ALLOWING FOR GOOD ANVIL GENERATION WHICH IS LIMITING DESTABILIZATION OVER SOME AREAS AS WELL. MODELS CONTINUE TREND OF KEEPING THE WESTERN SECTIONS ON A DRYING TREND...WHILE MOISTURE REMAINS OVER THE EASTERN SECTIONS OF THE FORECAST AREA. QUESTION REMAINS ON HOW MUCH DRYING/STABILIZATION WILL OCCUR ACROSS CENTRAL PORTIONS OF THE FORECAST AREA. GFS SOUNDINGS INDICATE SUFFICIENT INSTABILITY/LOW LEVEL MOISTURE FOR THUNDERSTORMS ALL NEXT WEEK FROM FLAGSTAFF EASTWARD. FOR NOW WILL GO WITH CURRENT TREND OF DECREASING THUNDERSTORM CHANCES TO BELOW CLIMATOLOGY ALL LOCATIONS BY MID WEEK AND BEYOND...ALTHOUGH POSSIBILITY EXISTS FOR MOISTURE RETURN IN THE LOW LEVELS LATER IN THE WEEK FROM MEXICO IF LARGE THUNDERSTORM COMPLEXES DEVELOP OR IF MONSOON BOUNDARY PUSHES WESTWARD AGAIN. STAUDENMAIER && .AVIATION...FOR THE 00Z PACKAGE...SCATTERED THUNDERSTORMS WILL CONTINUE OVER THE AREA THROUGH 06Z. A FEW OF THE STRONGER STORMS WILL PRODUCE IFR CIGS AND VSBYS ALONG WITH VARIABLE GUSTY WINDS. CLOUDS AND ISOLATED SHOWERS AND THUNDERSTORMS WILL LINGER OVERNIGHT ALONG AND EAST OF A KPGA TO KPAN LINE. MORE SCT THUNDERSTORMS ARE EXPECTED AREAWIDE AFT 18Z SUNDAY...EXCEPT NORTHWEST OF KFLG COVERAGE WILL BE MORE ISOLD. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS. TC && .FGZ WATCHES/WARNINGS/ADVISORIES...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 1000 AM MST SAT AUG 12 2006 AZZ004>018-037>040-130700- 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 SAT AUG 12 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY A MOIST AIR MASS WILL REMAIN ACROSS NORTHERN ARIZONA TODAY. AS A RESULT...EXPECT SCATTERED THUNDERSTORMS ACROSS NORTHERN ARIZONA...ESPECIALLY CENTRAL AND EAST CENTRAL PORTIONS OF THE STATE. BECAUSE OF A VERY MOIST CONDITIONS ALOFT...VERY HEAVY RAIN IS EXPECTED WITH THE STRONGER STORMS AND FLASH FLOODING WILL BE A THREAT. AREAS WHICH HAVE RECEIVED HEAVY RAIN OVER THE PAST FEW DAYS WILL BE MOST VULNERABLE TO POTENTIAL FLASH FLOODING ISSUES IN THE EVENT OF HEAVY RAINFALL TODAY. STORMS TODAY WILL GENERALLY MOVE FROM WEST TO EAST ACROSS NORTHERN ARIZONA. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY EXPECT SCATTERED THUNDERSTORMS GENERALLY IN THE AFTERNOON AND EVENING HOURS...ESPECIALLY ACROSS CENTRAL AND EASTERN PORTIONS OF NORTHERN ARIZONA. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. STAUDENMAIER
The Flagstaff radar (KFSX), 122 km away, was scanning. The volume nearest the first event began at 01:59 UTC.
1 flash flood. Local standard time, as filed.
A flash flood in Polacca Wash caused the closure of Highway 87 about 10 miles south of Second Mesa.
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: 5529558.