Alert archive / Arizona / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 21, NWS Tucson, AZ

July 5, 2011Pima County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 5, 2011, 5:22 PM MST for Pima County, Arizona. It was in force for 53 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 5, 2011, 5:22 PM MST (00:22 UTC)
Expired
Jul 5, 2011, 6:15 PM MST
In force
53 min
Issued by
NWS Tucson, AZ
Area
Storm-based polygon

County Pima County, AZ

The radar

The Phoenix radar (KIWA), 163 km from the middle of the area, began a volume at 00:25 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

Tuscon, AZ (KTUS), launched 00:00Z, 0.4 hours before the alert went out and 157 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, Tuscon, AZ at 00:00Z on 2011-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 212 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, Tuscon, AZ at 00:00Z on 2011-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -47 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
212 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
2754 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-47 m²/s²
0-3 km storm-relative helicity
-16 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

905 
WUUS55 KTWC 060022
SVRTWC
AZC019-060115-
/O.NEW.KTWC.SV.W.0021.110706T0022Z-110706T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
522 PM MST TUE JUL 5 2011

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

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

* UNTIL 615 PM MST

* AT 512 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM GU VO TO THE INTERNATIONAL BORDER AND WILL APPROACH LUKEVILLE 
  AND ORGAN PIPE OVER THE NEXT HOUR...THE STORMS ARE MOVING WEST AT  
  10 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  KUAKATCH...PIA OIK...ALI CHUK AND LUKEVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER INDOORS. EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH...
LARGE HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THIS STORM.

&&

LAT...LON 3213 11231 3174 11238 3190 11288 3222 11290
TIME...MOT...LOC 0021Z 090DEG 9KT 3207 11258 3200 11248
          3178 11246

$$

SHOEMAKER
2 follow-up statements
949 
WWUS55 KTWC 060059
SVSTWC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
559 PM MST TUE JUL 5 2011

AZC019-060115-
/O.CON.KTWC.SV.W.0021.000000T0000Z-110706T0115Z/
PIMA AZ-
559 PM MST TUE JUL 5 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM MST
FOR WEST CENTRAL PIMA COUNTY...

AT 554 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE 
EXTENDING FROM KUAKATCH TO ORGAN PIPE NATIONAL MONUMENT TO 
LUKEVILLE...OR ALONG A LINE EXTENDING FROM 50 MILES WEST OF SELLS TO 
49 MILES WEST OF SELLS TO 46 MILES WEST OF SELLS...MOVING WEST AT 10 
MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER INDOORS. EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH...
LARGE HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THIS STORM.

&&

LAT...LON 3213 11231 3174 11238 3190 11288 3222 11290
TIME...MOT...LOC 0059Z 090DEG 9KT 3208 11273 3197 11272
          3187 11268

$$

SHOEMAKER
783 
WWUS55 KTWC 060114
SVSTWC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
614 PM MST TUE JUL 5 2011

AZC019-060125-
/O.EXP.KTWC.SV.W.0021.000000T0000Z-110706T0115Z/
PIMA AZ-
614 PM MST TUE JUL 5 2011

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL PIMA COUNTY HAS
EXPIRED...

LAT...LON 3213 11231 3174 11238 3190 11288 3222 11290
TIME...MOT...LOC 0115Z 090DEG 9KT 3208 11278 3197 11277
          3187 11273

$$

SHOEMAKER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 5:31 PM MSTSevere Thunderstorm WarningTWCPima, Pinal44 min
Jul 5, 6:17 PM MSTSevere Thunderstorm WarningTWCPima, Pinal73 min
Jul 5, 6:44 PM MSTAreal Flood AdvisoryTWCCochise, Pima, Pinal3 hr
Jul 6, 12:35 PM MSTAreal Flood AdvisoryTWCCochise85 min
Jul 6, 1:34 PM MSTSpecial Weather StatementTWCSanta Cruz41 min
Jul 6, 2:08 PM MSTAreal Flood AdvisoryTWCSanta Cruz82 min
Jul 6, 2:15 PM MSTSevere Thunderstorm WarningTWCPima, Santa Cruz42 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2011Every severe thunderstorm warning in 2011

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.