Alert archive / Arizona / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 21, NWS Flagstaff, AZ

July 15, 2004Gila County, Arizona

NWS Flagstaff, AZ issued this severe thunderstorm warning at Jul 15, 2004, 5:27 PM MST for Gila County, Arizona. It was in force for 33 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 15, 2004, 5:27 PM MST (00:27 UTC)
Expired: Jul 15, 2004, 6:00 PM MST
In force: 33 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), 45 km from the middle of the area, began a volume at 00:27 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.

The nearest sounding before it

Phoenix, AZ (KPSR), launched 00:00Z, 0.5 hours before the alert went out and 101 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 485 J/kg
Mixed-layer CIN: -133 J/kg
Mixed-layer LCL: 2048 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 42 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS55 KFGZ 160027
SVRFGZ
AZC007-160100-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
526 PM MST THU JUL 15 2004

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN GILA COUNTY IN EAST CENTRAL ARIZONA
  THIS INCLUDES THE CITY OF PAYSON

* UNTIL 600 PM MST

* AT 523 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A SEVERE THUNDERSTORM ABOUT 3 MILES SOUTHWEST OF PAYSON...MOVING 
  NORTH AT 5 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  PAYSON AT 540 PM MST

HAIL UP TO 1 INCH IN DIAMETER IS POSSIBLE WITH THIS STORM. IF YOU ARE
IN THE PATH OF THE STORM...TAKE NECESSARY PRECAUTIONS AND MOVE TO A
SUBSTANTIAL SHELTER.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN FLAGSTAFF.

LAT...LON 3412 11146 3415 11124 3431 11127 3428 11150

$$

The office that day

Everything else NWS Flagstaff, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 15, 6:08 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	22 min
Jul 15, 8:36 PM MST	Severe Thunderstorm Warning	FGZ	Navajo	24 min
Jul 15, 9:04 PM MST	Severe Thunderstorm Warning	FGZ	Coconino, Navajo	26 min
Jul 16, 11:38 AM MST	Severe Thunderstorm Warning	FGZ	Coconino	37 min
Jul 16, 12:18 PM MST	Severe Thunderstorm Warning	FGZ	Coconino	27 min
Jul 16, 1:32 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	43 min
Jul 16, 3:37 PM MST	Severe Thunderstorm Warning	FGZ	Gila	23 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2004 Every severe thunderstorm warning in 2004

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.