1 tornado, as filed by the National Weather Service.
Every event with a place to put it. 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 Oct 3, 2:30 PM MST, 2 hours 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 230 PM MST FRI OCT 03 2003 .SYNOPSIS...AN UPPER LOW PRESSURE SYSTEM WILL MOVE ACROSS NORTHERN ARIZONA TONIGHT. LOOK FOR SHOWERS AND THUNDERSTORM ACTIVITY TO DECREASE FROM WEST TO EAST OVERNIGHT. A RIDGE OF HIGH PRESSURE WILL BUILD OVER THE STATE THIS WEEKEND BRINGING FAIR AND DRY WEATHER. YET ANOTHER STORM SYSTEM IS EXPECTED TO IMPACT THE STATE ON TUESDAY. && .DISCUSSION...CLOSED UPPER LOW IS CENTERED OVER NW AZ ATTM. BREAKS IN THE CLOUDS AND INCREASED INSOLATION FIRING OFF ANOTHER ROUND OF CONVECTION THIS AFTERNOON. STORMS MOSTLY CONFINED TO THE NW CWA AND SCATTERED FROM THE LCR EASTWARD. EXPECT WESTERN STORMS TO DIE THIS EVENING WHILE ACTIVITY SHOULD LINGER THRU THE NIGHT OUT EAST. THE LOW WILL OPEN AND FILL AS IT MOVES ACROSS NORTHERN AZ TONIGHT AND INTO N.M. BY EARLY SATURDAY MORNING. MID LEVEL DRYING INDICATED MOVING INTO WESTERN CWA ATTM AND WILL CONTINUE TO SPREAD EASTWARD OVERNIGHT. SFC DPS STARTING TO FALL ALREADY OUT WEST. LOOKING FOR PRECIP POTENTIAL TO DECREASE WEST TO EAST TONIGHT WITH JUST ISOLATED ACTIVITY EXPECTED ALONG THE N.M. BORDER REGION FOR SATURDAY. WEAK RIDGING SEEN FOR THE WEEKEND. HGTS AND THICKNESSES DONT RISE MUCH AND WARMING TREND WILL BE SLIGHT. EXTENDED...RIDGE SHIFTS EAST ON MONDAY AS ANOTHER S/WV TROF MOVES TOWARD THE DESERT SOUTHWEST. THIS S/WV IS PROGGED TO ADVECT MOISTURE FROM TS NORA INTO THE STATE BEGINNING LATE MONDAY. WILL CONTINUE TO ADVERTISE A THREAT OF PRECIP ON TUESDAY. THE TROF MOVES EAST ON WEDNESDAY WITH FAIR WEATHER FOR THE REMAINDER OF THE PERIOD. DF && .FGZ WATCHES/WARNINGS/ADVISORIES...NONE. &&
AZZ004>018-037>040-040200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 810 AM MST FRI OCT 3 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY A VIGOROUS WEATHER DISTURBANCE WILL MOVE SLOWLY THROUGH NORTHERN ARIZONA TODAY...AND INTO THIS EVENING. NUMEROUS SHOWERS AND THUNDERSTORMS HAVE ALREADY DEVELOPED MAINLY NORTH OF FLAGSTAFF. AREAS NORTH AND NORTHEAST OF THE MOGOLLON RIM WILL CONTINUE TO SEE WIDESPREAD SHOWERS AND THUNDERSTORMS TODAY. SOME STORMS MAY CONTAIN HEAVY RAIN AND SMALL HAIL. AREAS FROM FLAGSTAFF SOUTH AND SOUTHWEST WILL BE NEAR MUCH DRIER AIR...AND STORMS WILL BE MORE ISOLATED IN COVERAGE. DUE TO RAINFALL THURSDAY AND OVERNIGHT LAST NIGHT NORTH AND NORTHEAST OF FLAGSTAFF...SOME AREAS MAY EXPERIENCE LOCALIZED FLOODING WITH ADDITIONAL RAINFALL TODAY. AREAS MOST SUSCEPTIBLE TO THIS WILL BE NORTHEAST OF FLAGSTAFF. SHOWERS AND THUNDERSTORMS WILL DECREASE THIS EVENING. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY 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. DEFINITION OF HAZARDOUS WEATHER...A WEATHER EVENT POSING A THREAT TO LIFE AND PROPERTY.
The Flagstaff radar (KFSX), 154 km away, was scanning. The volume nearest the first event began at 23:43 UTC.
1 tornado. Local standard time, as filed.
The public and Law Enforcement observed a tornado on the ground near White Cone. A spotter reported damage to a fence, windmill, and trees.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2003Every state in 2003This day in weather historyThe tornado archive for Arizona, 2003Warnings in Arizona, October 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 2026-09-30. Each event’s entry at NCEI: 5371997.