1 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 20, 3:30 AM MST, 4 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 330 AM MST MON SEP 20 2004 .SYNOPSIS...AN UPPER LEVEL WEATHER SYSTEM WILL MOVE ACROSS NORTHERN ARIZONA TODAY AND TUESDAY. AS A RESULT...IT WILL BE BREEZY TODAY ALONG WITH A FEW SHOWERS AND THUNDERSTORMS...MAINLY ALONG THE NEW MEXICO AND UTAH BORDERS. HIGH TEMPERATURES WILL BE 6 TO 8 DEGREES BELOW NORMAL FOR THE NEXT TWO DAYS. HIGH PRESSURE WILL BEGIN TO BUILD INTO THE AREA BY WEDNESDAY BRINGING A WARMING TREND WITH DRIER CONDITIONS FOR THE REMAINDER OF THE WEEK. && .DISCUSSION...HEAVY RAINS OVER THE PAST 24 HOURS WILL PRODUCE MUCH ABOVE NORMAL FLOWS ON AREA CREEKS AND WASHES IN YAVAPAI AND NORTHERN GILA COUNTIES. THESE AREAS WERE HARDEST HIT BY THE RECENT HEAVY RAINS. FOR THIS REASON A SMALL STREAM FLOOD ADVISORY IS IN EFFECT UNTIL 6 AM MST THIS MORNING. WE WILL EVALUATE FLOWS ON AREA STREAMS AND DETERMINE IF THIS ADVISORY WILL BE EXTENDED THROUGH THE MORNING HOURS. THE UPPER LEVEL TROUGH WHICH PULLED MOISTURE UP INTO THE STATE HAS NOW BEGUN TO PUSH DRIER AIR ACROSS WESTERN SECTIONS THIS MORNING. THE PUSH OF DRIER AIR IS SLOWLY BRINGING FLAGSTAFF DEW POINTS DOWN. THE DRY AIR WILL CONTINUE TO PUSH ACROSS THE FORECAST AREA TODAY. THINKING THAT THERE WILL BE ENOUGH MOISTURE OVER EASTERN SECTIONS ALONG THE NEW MEXICO BORDER TO ALLOW FOR A FEW SHOWERS AND THUNDERSTORMS THIS AFTERNOON. THE UPPER LOW PRESSURE TROUGH WILL MOVE ACROSS THE REGION TODAY AND TUESDAY BEFORE EXITING TO THE EAST. THERE WILL BE -30 TO -50 UNITS OF DIVQ THIS AFTERNOON AND EVENING ALONG WITH STRONG 500 MB COOLING. THERE WILL BE ENOUGH COOLING TODAY TO PROVIDE SATURATION...ESPECIALLY ALONG THE UTAH BORDER. TOO DRY BY TUESDAY...SO THAT SHOWERS AND THUNDERSTORMS ARE NOT EXPECTED. A RIDGE BEGINS TO BUILD OVER THE AREA BY WEDNESDAY...EXPECT A SLOW MODERATION OF THE HIGH TEMPERATURES FOR THE SECOND HALF OF THE WEEK. THE GFS IS PULLING MOISTURE FROM NORTHEAST MEXICO BACK INTO ARIZONA AS EARLY AS FRIDAY...LASTING THROUGH THE WEEKEND AND INTO EARLY PARTS OF NEXT WEEK. FOR NOW WE WILL GO WITH INCREASING CLOUDINESS...HOWEVER NO PRECIPITATION DURING THIS TIME. && .FGZ WATCHES/WARNINGS/ADVISORIES... SMALL STREAM FLOOD ADVISORY AZ ZONES 008/018/037 UNTIL 6AM MST THIS MORNING. && TC
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 700 AM MST MON SEP 20 2004 AZZ004>018-037>040-211400- 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 MON SEP 20 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY STRONG GUSTY SOUTHWEST WINDS WILL BE THE MAIN WEATHER HAZARD TODAY. LOOK FOR SOUTHWEST WINDS OF 15 TO 25 MPH AND GUSTS NEAR 40 MPH. THERE WILL BE A FEW SHOWERS AND THUNDERSTORMS THIS AFTERNOON MAINLY IN APACHE COUNTY. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .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.
1 flood. Local standard time, as filed.
The Verde River rose 12 feet near Bridgeport between 8:00AM and 11:00AM. Some barns were flooded and several homes were evacuated. Flood water entered two homes.
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: 5424291.