1 heavy rain, 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 26, 9:35 AM MST, 5 hours 15 minutes earlier.
NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
935 AM MST TUE AUG 26 2003
.SYNOPSIS...HIGH PRESSURE WILL CONTINUE TO BRING ABUNDANT MOISTURE
TO THE REGION...RESULTING IN A CONTINUATION OF DAILY SHOWERS AND
THUNDERSTORMS. AN INCREASE IN TROPICAL MOISTURE IS EXPECTED ACROSS
THE REGION LATE TODAY AND WEDNESDAY. THIS WILL BRING AN INCREASE IN
SHOWER AND THUNDERSTORM ACTIVITY THROUGH AT LEAST THURSDAY. A SLIGHT
DRYING TREND IS EXPECTED BY THE WEEKEND.
.DISCUSSION...MORNING SOUNDING HAS MORE AVAILABLE CAPE THAN MONDAYS
SOUNDING...AND A BIT MORE MOISTURE IN THE COLUMN. ANOTHER SUNNY OR
MOSTLY SUNNY START TO THE DAY SHOULD LEAD TO SOME POTENT STORMS.
ONLY VERY LIGHT EASTERLY MID LEVEL FLOW WILL AGAIN CAUSE SLOW MOVING
STORMS TO PILE UP SIGNIFICANT RAINFALL. STORMS WILL EVENTUALLY MOVE
TO THE WEST INTO YAVAPAI COUNTY AS THEY FALL OFF THE RIM. WILL BE
ISSUING A FLASH FLOOD WATCH FOR SOUTHERN COCONINO AND YAVAPAI
COUNTIES SHORTLY THIS MORNING...THESE AREAS ARE VERY SATURATED AND
IT WILL NOT TAKE MUCH. MORE OF THE SAME TO FOLLOW THE NEXT FEW DAYS
AS IGNACIO DRAWS CLOSER. ZONE TRENDS LOOK FINE...BUT WILL UPDATE FOR
THE WATCH. PETERSON.
.FGZ...FFA AZ ZONES 8/12/15/37/38 NOON MST UNTIL 10 PM MST TODAY.
.CODED TEMPERATURES/POPS FOR SELECTED CITIES IN NORTHERN ARIZONA
CITY TEMPERATURES HI/LO PROBABILITY OF PRECIP
TDY TON WED THU TDY TON WED THU
FLAGSTAFF 078/053 073/050 073/049 050 050 060 050 040 040
WINSLOW 090/062 085/062 083/060 030 030 040 040 030 030
PRESCOTT 083/062 080/060 080/060 050 050 050 040 040 040
PAGE 093/071 090/070 089/067 020 020 030 030 030 030
WINDOW ROCK 081/054 079/052 076/047 030 030 050 040 040 040
CANYON DE CHELLY 087/062 085/060 082/055 020 020 040 040 040 030
COTTONWOOD 094/070 091/068 091/068 050 050 050 040 040 040
GRAND CANYON 081/051 076/051 078/048 040 040 050 040 040 040
GREER 073/050 068/047 068/046 050 050 060 050 040 040
HEBER 083/055 078/052 078/051 050 050 060 050 040 040
JACOB LAKE 076/053 071/050 071/049 040 040 040 040 040 030
NAVAJO N.M. 081/059 079/057 076/052 030 030 050 040 040 040
PAYSON 087/063 084/061 084/061 040 040 060 050 040 040
SEDONA 091/068 088/066 088/066 040 040 050 040 040 040
SELIGMAN 086/061 083/059 083/059 040 040 050 040 040 040
SHOW LOW 083/061 078/058 078/057 050 050 050 050 040 040
ST. JOHNS 090/062 085/062 083/060 040 040 050 040 040 040
WUPATKI N.M. 092/063 087/063 085/061 030 030 040 040 040 030AZZ004>018-037>040-270200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 945 AM MST TUE AUG 26 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY ...FLASH FLOOD WATCH FOR SOUTHERN COCONINO COUNTY AND ALL OF YAVAPAI COUNTY FROM NOON MST UNTIL 10 PM MST TODAY... A VERY MOIST AND UNSTABLE AIRMASS REMAINS ACROSS THE REGION TODAY. LIGHT EASTERLY FLOW WILL FAVOR THUNDERSTORM DEVELOPMENT ACROSS THE HIGH TERRAIN OF CENTRAL ARIZONA BY LATE THIS MORNING. STORMS WILL DRIFT SLOWLY WESTWARD OFF THE RIM AND INTO PORTIONS OF YAVAPAI AND GILA COUNTIES LATER THIS AFTERNOON. NORTHEAST AND NORTHERN SECTIONS OF THE STATE WILL SEE ONLY ISOLATED THUNDERSTORM COVERAGE TODAY. DUE TO THE VERY MOIST ATMOSPHERIC CONDITIONS...ISOLATED STRONGER STORMS WILL PRODUCE TORRENTIAL RAIN THIS AFTERNOON. THIS IS MOST LIKELY OVER PORTIONS OF THE MOGOLLON RIM AND IN PORTIONS OF YAVAPAI COUNTY. SATURATED SOIL CONDITIONS MAY LEAD TO SOME FLOODING WITH THE STRONGEST STORMS TODAY. THESE STORMS MAY ALSO PRODUCE HAIL AND GUSTY WINDS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH LABOR DAY MOISTURE WILL INCREASE ACROSS THE STATE THROUGH THURSDAY. WIDESPREAD SHOWER AND THUNDERSTORM ACTIVITY WILL CONTINUE WEDNESDAY AND INTO THURSDAY...BEFORE SLOWLY DECREASING AGAIN BY THE WEEKEND. FREQUENT HEAVY RAIN MAY WILL MEAN THAT THE FLOODING POTENTIAL WILL REMAIN AT LEAST MODERATE THROUGH THE END OF THE WEEK. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. DEFINITION OF HAZARDOUS WEATHER...A WEATHER EVENT POSING A THREAT TO LIFE AND PROPERTY.
The national radar mosaic for the moment the first event began.
1 heavy rain. Local standard time, as filed.
2.30 inches of rain fell in Payson in just an hour.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2003Every state in 2003This day in weather historyWarnings in Arizona, August 2003
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: 5374323.