Alert archive / Arizona / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 71, NWS Tucson, AZ

August 13, 2003Pima County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Aug 13, 2003, 3:11 PM MST for Pima County, Arizona. It was in force for 49 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
Aug 13, 2003, 3:11 PM MST (22:11 UTC)
Expired
Aug 13, 2003, 4:00 PM MST
In force
49 min
Issued by
NWS Tucson, AZ
Area
Counties, with a storm outline in the text

County Pima County, AZ

The radar

The Phoenix radar (KIWA), 151 km from the middle of the area, began a volume at 22:14 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 12:00Z, 10.2 hours before the alert went out and 151 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-pSkew-T log-p diagram, Phoenix, AZ at 12:00Z on 2003-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 760 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phoenix, AZ at 12:00Z on 2003-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
760 J/kg
Mixed-layer CIN
-257 J/kg
Mixed-layer LCL
2515 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
49 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 KTWC 132211
SVRTWC
AZC019-132300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
310 PM MST WED AUG 13 2003

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL PIMA COUNTY IN ARIZONA

* UNTIL 400 PM MST

* AT 310 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  SEVERE THUNDERSTORM NEAR HICKIWAN...OR ABOUT 12 MILES EAST OF      
  AJO...MOVING WEST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WHY AT 330 PM MST
  AJO AT 345 PM MST

THIS STORM IS LIKELY TO PRODUCE A WALL OF DAMAGING WINDS AND BLOWING 
DUST...FOLLOWED BY HAIL AND VERY HEAVY RAIN. MOTORISTS SHOULD BE 
PREPARED FOR SUDDEN CHANGES IN VISIBILITY AND STRONG CROSS WINDS 
ALONG HIGHWAYS 85 AND 86.

LAT...LON 3205 11245 3240 11245 3242 11290 3204 11290

PYTLAK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 5:57 PM MSTSevere Thunderstorm WarningTWCCochise48 min
Aug 12, 9:30 PM MSTSevere Thunderstorm WarningTWCPima45 min
Aug 12, 10:13 PM MSTFlash Flood WarningTWCPima2 min
Aug 13, 12:33 AM MSTSevere Thunderstorm WarningTWCSanta Cruz37 min
Aug 13, 2:30 PM MSTSevere Thunderstorm WarningTWCGreenlee30 min
Aug 13, 3:23 PM MSTFlash Flood WarningTWCPima97 min
Aug 13, 3:37 PM MSTSevere Thunderstorm WarningTWCPima38 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.