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 Sep 18, 9:15 AM MST, 1 hour 45 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 915 AM MST SAT SEP 18 2004 .SYNOPSIS...SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS MUCH OF THE AREA TODAY...INCREASING IN COVERAGE BY THE AFTERNOON. RAIN WILL BE HEAVY AT TIMES LATE TODAY THROUGH SUNDAY...ESPECIALLY OVER THE HIGHER ELEVATIONS OF YAVAPAI COUNTY...GILA COUNTY...THE MOGOLLON RIM...AND THE WHITE MOUNTAINS. IN ADDITION TO THE RAIN...LOCALLY WINDY CONDITIONS ARE EXPECTED ACROSS THE REGION AS A COLD FRONT APPROACHES FROM THE WEST. THIS FRONT WILL END THE RAINFALL MONDAY AFTERNOON OR EVENING...AND WILL BRING COOLER TEMPERATURES TO MUCH OF THE STATE FOR NEXT WEEK. && .DISCUSSION...A VERY WET WX PATTERN CONTINUES TO DEVELOP OVER THE STATE. SOUTHERLY FLOW IS STRENGTHENING BTWN SOUTHERN PLAINS HIGH AND DEEPENING WEST COAST TROF. THIS IS TAPPING INTO A LARGE POOL OF MOISTURE ASSOCIATED WITH THE REMAINS OF HURRICANE JAVIER. DPS INCREASED OVERNIGHT WITH VALUES IN THE 60S AND 70S ACROSS SOUTHERN ARIZONA. GPS-IPW SHOWS PWS UP OVER HALF AN INCH OVERNIGHT AS WELL. MODELS INDICATE MOISTURE PLUME AXIS MOVING NORTH TODAY ACROSS WESTERN SECTIONS OF ARIZONA. AIR MASS WILL BECOME INCREASINGLY UNSTABLE. 12Z FGZ SOUNDING SHOWED A MID LEVEL CAP BUT THIS IS EXPECTED TO BE OVERCOME WITH MORNING HEATING AND BREAK BY NOON. LIFT WILL ALSO BE INCREASING DURING THE DAY BY A JET STREAK MOVING INTO NW AZ WITH A GOOD DIVERGENCE PATTERN ALOFT. THE STRENGTHENING SW FLOW WILL ALSO ENHANCE THE OROGRAPHIC LIFT OVER THE RIM. DEEP LAYERED MOISTURE ALONG WITH STRONG OMEGA FIELD SEEN FOR TONIGHT AND CONTINUING THRU SUNDAY. EXPECT HEAVY RAINFALL AMOUNTS OVER THE AREAS ESPECIALLY FROM THE RIM SOUTHWARD AND OVER YAVAPAI COUNTY WITH MODEL ESTIMATES OF 1 TO 3 INCHES POSSIBLE DURING THIS EVENT. IN ADDITION TO THE MOISTURE AND DYNAMICS SHEAR PROFILES INDICATE SEVERE TSTMS ALSO A POSSIBILITY. LIFT AND UPPER LEVEL MOISTURE BEGIN TO DECREASE LATE SUNDAY. THREAT OF SHOWERS AND TSTMS WILL CONTINUE INTO EARLY TUESDAY BEFORE TROF PASSAGE PUSHES THE MOISTURE OUT OF THE STATE. FLASH FLOOD WATCH REMAINS IN EFFECT FROM 3 PM TODAY UNTIL MIDNIGHT. NO UPDATE TO ZONE PACKAGED NEEDED. DF && .FGZ WATCHES/WARNINGS/ADVISORIES...FLASH FLOOD WATCH AZ ZONES 8/15/18/37/38 FROM 3 PM MST TODAY UNTIL MIDNIGHT MST SUNDAY NIGHT. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 700 AM MST SAT SEP 18 2004 AZZ004>018-037>040-191400- 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- 700 AM MST SAT SEP 18 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY DEEP SUB-TROPICAL MOISTURE WILL MOVE NORTH ACROSS THE REGION TODAY. SHOWERS AND THUNDERSTORMS WILL INCREASE IN COVERAGE AND INTENSITY THROUGHOUT THE DAY...BECOMING WIDESPREAD BY MID-AFTERNOON. THE MOST FREQUENT STORMS WILL OCCUR ALONG AND JUST SOUTH OF THE MOGOLLON RIM. EXPECT SOUTHWEST WINDS OF 15 TO 25 MPH WITH GUSTS TO 35 MPH IN ADDITION TO THE RAIN. THERE IS A FLASH FLOOD WATCH IN EFFECT LATER TODAY AND SUNDAY FOR PORTIONS OF CENTRAL ARIZONA...SEE PHXFFAFGZ FOR DETAILS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY WIDESPREAD SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH SUNDAY NIGHT AND INTO EARLY MONDAY. LOCALLY HEAVY RAIN IS POSSIBLE ALONG AND JUST SOUTH OF THE MOGOLLON RIM. SOUTHWEST WINDS OF 15 TO 25 MPH WITH GUSTS TO 35 MPH WILL CONTINUE THROUGH MONDAY. A COLD FRONT WILL BRING AN END TO THE WIND AND RAIN BY MONDAY AFTERNOON AND EVENING. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The Flagstaff radar (KFSX), 124 km away, was scanning. The volume nearest the first event began at 17:59 UTC.
1 flash flood. Local standard time, as filed.
Flooding was reported along Double A Ranch Road north of Seligman. A patrol car was stuck in the mud and flood waters on Sierra Verde Ranch Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2004Every state in 2004This day in weather historyWarnings in Arizona, September 2004
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: 5424202.