Alert archive / Arizona / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 6, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Jul 12, 2003, 5:37 PM MST for Gila County, Arizona. It was in force for 38 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 12, 2003, 5:37 PM MST (00:37 UTC)
- Expired
- Jul 12, 2003, 6:15 PM MST
- In force
- 38 min
- Issued by
- NWS Phoenix, AZ
- Area
- Counties, with a storm outline in the text
County Gila County, AZ
The radar
The Phoenix radar (KIWA), 103 km from the middle of the area, began a volume at 00:40 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 nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 0.6 hours before the alert went out and 121 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
- 1107 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 3619 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KPSR 130037 SVRPSR AZC007-130115- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PHOENIX AZ 535 PM MST SAT JUL 12 2003 THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EXTREME SOUTH CENTRAL GILA COUNTY IN EAST CENTRAL ARIZONA * UNTIL 615 PM MST * AT 535 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER EXTREME SOUTH CENTRAL GILA COUNTY...OR ABOUT 17 MILES SOUTHEAST OF GLOBE...MOVING SOUTH AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... SAN CARLOS LAKE AT 545 PM MST REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN PHOENIX. LAT...LON 3326 11044 3339 11073 3303 11077 3319 11046 $$
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 Phoenix, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 12, 3:30 PM MST, 2 hours 7 minutes earlier.
Area forecast discussion, Jul 12, 3:30 PM MST, 2 hours 7 minutes before
AZZ020>028-CAZ030>033-130545-
SOUTHWEST ARIZONA/SOUTHEAST CALIFORNIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PHOENIX ARIZONA
330 PM MST SAT JUL 12 2003
.SYNOPSIS...
STRONG HIGH PRESSURE CENTERED OVER ARIZONA WILL CONTINUE TO RESULT IN
HOT WEATHER THIS WEEKEND AND EARLY THIS COMING WEEK. THEN...THE HIGH
PRESSURE SYSTEM WILL SHIFT NORTHEAST TO NEAR THE 4 CORNERS THIS
COMING WEEK...WITH A POSSIBILITY OF THUNDERSTORMS FROM THE HIGHER
TERRAIN OF SOUTH-CENTRAL ARIZONA DEVELOPING WEST OVER THE SOUTH-
CENTRAL DESERT AREAS INCLUDING PHOENIX THIS COMING WEEK...AND WEST
TO SOUTHEAST CALIFORNIA BY MID WEEK. THERE WILL ALSO BE AREAS OF
BLOWING DUST AND LOWER TEMPERATURES. RELATIVELY HUMID AIR IS EXPECTED
TO CONTINUE THIS COMING WEEK.
.DISCUSSION...
MID AFTERNOON SURFACE TEMPERATURES WERE AVERAGING A FEW DEGREES
HIGHER TODAY COMPARED WITH THE SAME TIME YESTERDAY. WITH SLIGHT
FURTHER WARMING OF THE AIRMASS...EXPECT HIGH TEMPERATURES TO BE
SLIGHTLY HIGHER SUNDAY. THERE WAS AT LEAST AS MUCH MOISTURE IN
SOUTH-CENTRAL ARIZONA THIS AFTERNOON AS YESTERDAY. THUS...HAVE A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AGAIN FOR SOUTHERN GILA
COUNTY INTO NORTH-CENTRAL PINAL COUNTY THIS EVENING AND AGAIN SUNDAY
AFTERNOON AND EVENING...WITH BLOWING DUST POSSIBLE OVER THE
SOUTH-CENTRAL DESERT AREAS. OVERALL...MOISTURE IS EXPECTED TO
CONTINUE A GRADUAL INCREASE SUNDAY AND MONDAY. A MORE SIGNIFICANT
INCREASE IS ANTICIPATED THIS COMING WEEK...AS THE HIGH PRESSURE
CENTER OVER ARIZONA SHIFTS NORTHEAST. THUS...HAVE INCREASED THE
CHANCES OF SHOWERS AND THUNDERSTORMS...WITH THE POSSIBILITY OF
SHOWERS AND THUNDERSTORMS DEVELOPING WEST INTO SOUTHEAST CALIFORNIA
BY MID WEEK. WITH WEAK LOW PRESSURE SYSTEMS IN A FLOW ALOFT FROM THE
EAST...THERE WILL BE AT LEAST A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AT ANYTIME OF DAY OR NIGHT BEGINNING TUESDAY...WHICH
IS REFLECTED IN THE LATEST FORECAST.
.PSR...HEAT ADVISORY FOR SOUTH-CENTRAL ARIZONA DESERT ZONES 22...23
27...AND 28...MARICOPA COUNTY INCLUDING THE GREATER PHOENIX
AREA...AND NORTHWEST AND NORTH-CENTRAL PINAL COUNTY.
ELLISHazardous weather outlook, Jul 12, 6:00 AM MST, 11 hours 37 minutes before
AZZ020>028-CAZ030>033-130100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PHOENIX AZ 600 AM MST SAT JUL 12 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWEST AND SOUTH-CENTRAL ARIZONA...AND SOUTHEAST CALIFORNIA. .DAY ONE...TODAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 4:23 PM MST | Severe Thunderstorm Warning | PSR | Gila | 37 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.