Alert archive / Arizona / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 22, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this severe thunderstorm warning at Jul 26, 2003, 6:19 PM MST for Gila County, Arizona. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 26, 2003, 6:19 PM MST (01:19 UTC)
- Expired
- Jul 26, 2003, 6:50 PM MST
- In force
- 31 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Counties, with a storm outline in the text
County Gila County, AZ
The radar
The Flagstaff radar (KFSX), 55 km from the middle of the area, began a volume at 01:20 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 26, 3:05 PM MST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Phoenix, AZ (KPSR), launched 00:00Z, 1.3 hours before the alert went out and 110 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 660 J/kg
- Mixed-layer CIN
- -136 J/kg
- Mixed-layer LCL
- 2742 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KFGZ 270119 SVRFGZ AZC007-270150- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE FLAGSTAFF AZ 615 PM MST SAT JUL 26 2003 THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS EXTENDED THE * SEVERE THUNDERSTORM WARNING FOR... NORTH CENTRAL GILA COUNTY IN EAST CENTRAL ARIZONA * UNTIL 650 PM MST * AT 610 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR YOUNG...OR ABOUT 22 MILES SOUTHWEST OF FOREST LAKES...MOVING NORTHWEST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... RURAL NORTHERN GILA COUNTY AT 630 PM MST REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN FLAGSTAFF. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MST SATURDAY EVENING FOR EAST CENTRAL ARIZONA. LAT...LON 3395 11101 3409 11087 3432 11117 3414 11134
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jul 26, 2:30 PM MST, 3 hours 49 minutes earlier.
Area forecast discussion, Jul 26, 2:30 PM MST, 3 hours 49 minutes before
NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
230 PM MST SAT JUL 26 2003
.SYNOPSIS...A VERY MOIST AIRMASS WILL REMAIN OVER ARIZONA THROUGH
NEXT WEEK. AS A RESULT...SCATTERED SHOWER AND THUNDERSTORM ACTIVITY
WILL DEVELOP EACH AFTERNOON. THUNDERSTORMS WILL BE MORE NUMEROUS
ACROSS THE AREA SUNDAY AND MONDAY AS A WEATHER DISTURBANCE MOVES
THROUGH THE STATE. TEMPERATURES WILL REMAIN NEAR NORMAL.
.DISCUSSION...UPPER HIGH OVER SOUTHERN ROCKIES OF COLORADO SHIFTS
WESTWARD INTO THE GREAT BASIN BY TOMORROW. CWA REMAINS UNDER A
MOIST EASTERLY FLOW. PW VALUES HOVERING NEAR AN INCH ACROSS THE
ENTIRE CWA ATTM. MODELS INDICATE ANOTHER INFLUX OF MOISTURE LATE
TONIGHT AND EARLY SUNDAY WITH PWS INCREASING BY A QUARTER OF AN
INCH. APPROACHING JET STREAK TO MOVE ACROSS SE AZ TONIGHT. THIS
FEATURE ALREADY FIRING OFF CONVECTION OVER WHITE MTNS AND RIM AREAS.
CONVECTION ACROSS THE CWA COULD LINGER THRU THE NIGHT AS DIVERGENCE
ALOFT ASSOCIATED WITH THE STREAK CROSSES THE CWA. TOMORROW AND MONDAY
LOOK MORE UNSTABLE AS INVERTED TROF MOVES WEST ACROSS SOUTHERN AZ.
MODELS INDICATE AN INCREASE IN THETA-E AND LIS FOR SUNDAY. FOCUS
AREAS TOMORROW INCLUDE THE RIM AND SOUTHERN SECTIONS OF THE CWA.
STORMS EXPECTED TO BE HEAVY RAIN PRODUCERS AND FLOODING POTENTIAL
WILL BE OF CONCERN.
EXTENDED...SEE NOTHING IN MEDIUM RANGE MODELS THAT WARRANTS ANY
CHANGE FROM THE CURRENT DAILY MONSOON FCST. UPPER HIGH STAYS OVER
THE GREAT BASIN WITH MOIST FLOW INTO THE REGION CONTINUING. DF
.FGZ...NONE.
.CODED TEMPERATURES/POPS FOR SELECTED CITIES IN NORTHERN ARIZONA
CITY TEMPERATURES LO/HI PROBABILITY OF PRECIP
TON SUN MON TUE TON SUN MON TUE
FLAGSTAFF 056/080 057/079 054/076 030 060 030 060 040 050
WINSLOW 067/094 068/090 065/087 020 040 030 040 030 030
PRESCOTT 065/087 066/085 064/082 030 050 040 060 030 040
PAGE 070/096 072/093 069/090 020 020 030 040 030 040
WINDOW ROCK 060/090 058/086 055/083 030 040 040 060 040 040
CANYON DE CHELLY 070/096 068/092 065/089 020 030 030 050 030 030
COTTONWOOD 073/098 074/096 072/093 020 040 030 050 020 030
GRAND CANYON 055/082 056/081 053/078 020 050 020 050 030 040
GREER 052/076 053/075 050/072 050 060 050 060 040 060
HEBER 057/085 058/084 055/081 040 060 040 060 040 060
JACOB LAKE 056/078 057/077 054/074 020 040 020 050 030 040
NAVAJO N.M. 064/090 062/086 059/083 020 030 030 050 030 030
PAYSON 066/092 067/090 065/087 030 020 040 060 030 040
SEDONA 071/096 072/094 070/091 020 040 030 050 020 030
SELIGMAN 058/090 059/088 057/085 020 040 030 040 020 030
SHOW LOW 064/086 065/085 062/082 030 050 030 060 040 050
ST. JOHNS 062/088 063/084 060/081 030 050 040 050 040 040
WUPATKI N.M. 070/096 071/092 068/089 020 050 030 050 030 030Hazardous weather outlook, Jul 26, 9:45 AM MST, 8 hours 34 minutes before
AZZ004>018-037>040-270200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 945 AM MST SAT JUL 26 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY LOOK FOR SCATTERED SHOWERS AND THUNDERSTORMS ACROSS THE REGION TODAY. THE STRONGEST STORMS THIS AFTERNOON ARE EXPECTED TO FORM OVER THE WHITE MOUNTAINS AND EASTERN MOGOLLON RIM. THE MAIN THREAT FROM THIS STORMS WILL BE HEAVY RAINFALL WITH THE POTENTIAL FOR LOCALIZED FLOODING AND HAIL. STORMS ARE EXPECTED TO BEGIN DEVELOPING AROUND NOON. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY A WARM AND VERY MOISTURE AIR MASS WILL REMAIN OVER ARIZONA THROUGH THE PERIOD. LOOK FOR A CONTINUED MAINLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS. A WEATHER SYSTEM WILL APPROACH THE AREA SUNDAY INTO MONDAY...WITH SHOWERS AND THUNDERSTORMS INCREASING DURING THIS TIME PERIOD. THERE WILL BE AN INCREASED THREAT OF STRONG THUNDERSTORMS AND LOCALLY HEAVY RAIN SUNDAY AND MONDAY...MAINLY OVER THE WHITE MOUNTAINS...MOGOLLON RIM AND YAVAPAI COUNTY. .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 office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 5:40 PM MST | Severe Thunderstorm Warning | FGZ | Gila | 35 min |
| Jul 26, 6:07 PM MST | Severe Thunderstorm Warning | FGZ | Navajo | 53 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2003Every severe thunderstorm warning in 2003
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.