Arizona, 2003

Tornado in Arizona, June 17, 2003

June 17, 2003 · NWS FGZ · 1 event in 1 county or zone

1 tornado, as filed by the National Weather Service.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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.

What forecasters said that day

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 Jun 17, 10:30 AM MST, 1 hour 20 minutes earlier.

Area forecast discussion, Jun 17, 10:30 AM MST, 1 hour 20 minutes before
NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
1030 AM MST TUE JUN 17 2003

.SYNOPSIS...AN AREA OF WEAK LOW PRESSURE WILL MOVE INTO WESTERN
ARIZONA TODAY AND LINGER THROUGH MIDWEEK. MOISTURE WILL ALSO
INCREASE ACROSS THE EASTERN HALF OF THE STATE RESULTING IN AFTERNOON
SHOWERS AND THUNDERSTORMS MAINLY FROM FLAGSTAFF EASTWARD. A BREEZY
SOUTHWESTERLY FLOW WILL ARRIVE ON THURSDAY BRINGING A DRYING TREND
AND NEAR SEASONABLE TEMPERATURES INTO THE WEEKEND.

.DISCUSSION...MOISTURE HAS INCREASED ACROSS THE FORECAST AREA MAINLY
IN THE BOUNDARY LAYER. MID TO UPPER LEVEL CIRCULATION WILL CONTINUE
TO TRACK EAST ACROSS ARIZONA...PROVIDING MINIMAL LARGE SCALE ASCENT.
THE BEST MOISTURE AND INSTABILITY WILL BE MAINLY FROM FLAGSTAFF EAST
THIS AFTERNOON. FAIRLY DRY AIR TO THE WEST WILL WRAP EAST BEHIND THE
LOW SO THERE WILL BE A FAIRLY STRONG EAST-WEST GRADIENT IN
CONVECTION...BY LATER THIS AFTERNOON. WE HAVE PUT 10 PERCENT POPS AS
FAR WEST AS THE GRAND CANYON AND JACOB LAKE. INERTIAL INSTABILITY
TAKES SHAPE...EVIDENT AT 300 MB ON THE GFS MODELS FOR THIS EVENING
AND DURING THE OVERNIGHT HOURS OVER EASTERN SECTION OF THE FORECAST
AREA...LOOKING FOR THE CONVECTION TO BE MORE LONG LIVED OVER THIS
AREA. WE HAVE INCREASED POPS OVER THE UPPER PORTION OF THE LCR...
THE WHITE MOUNTAINS...AND AS FAR NORTH AS WINDOW ROCK TO AROUND 50
PERCENT THIS AFTERNOON AND TAPERING SOME AS WE GET INTO THE EVENING
HOURS...AND THIS DEPENDS UPON HOW MUCH DRY AIR COMES IN FROM THE
WEST THIS EVENING.
TC
.FGZ...NONE.

.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        081/044 079/044 077/040      040 020 020 020 005 005
WINSLOW          092/057 091/056 091/052      040 030 020 020 010 010
PRESCOTT         091/056 090/057 087/054      000 000 000 000 000 000
PAGE             096/068 094/066 092/065      010 010 010 010 000 000
WINDOW ROCK      084/048 082/046 080/043      050 040 030 030 020 020
CANYON DE CHELLY 091/055 089/053 087/050      040 040 020 020 010 010
COTTONWOOD       102/063 101/064 098/061      010 000 000 000 000 000
GRAND CANYON     085/045 083/045 081/041      010 010 010 010 000 000
GREER            079/043 077/043 075/039      050 040 030 030 010 010
HEBER            087/045 085/045 083/041      040 030 030 030 010 010
JACOB LAKE       077/047 075/047 073/043      010 000 000 000 000 000
NAVAJO N.M.      083/054 081/052 079/049      030 030 020 020 000 000
PAYSON           096/055 095/056 092/053      020 010 000 000 000 000
SEDONA           100/062 099/063 096/060      020 010 000 000 000 000
SELIGMAN         093/048 092/049 089/046      000 000 000 000 000 000
SHOW LOW         090/054 088/054 086/050      050 040 020 020 010 010
ST. JOHNS        095/053 092/052 090/048      050 040 030 030 020 020
WUPATKI N.M.     094/062 093/061 093/057      030 020 020 020 000 000
Hazardous weather outlook, Jun 17, 7:00 AM MST, 4 hours 50 minutes before
AZZ004>018-037>040-180200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
700 AM MST TUE JUN 17 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN
GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA.

.DAY ONE...TODAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

The radar

The Flagstaff radar (KFSX), 68 km away, was scanning. The volume nearest the first event began at 18:49 UTC.

Open the radar archive at this moment

Event by event

1 tornado. Local standard time, as filed.

Tornado, Navajo

When
June 17, 11:50 AM MST to 12:20 PM MST
Where
Navajo County, Winslow
Rating
F0
Path length
0.5 mi
Path width
10 yd
Reported by
GENERAL PUBLIC
Coordinates
35.033, -110.700

A weak tornado formed along a convergence zone about one mile west of Winslow. The tornado was nearly stationary and remained in rural areas for about 30 minutes.

What these are

Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Arizona in 2003Every state in 2003This day in weather historyThe tornado archive for Arizona, 2003Warnings in Arizona, June 2003

Sources

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: 5365884.