Alert archive / Arizona / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 39, NWS Tucson, AZ

July 20, 2005Cochise County, Pima County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 20, 2005, 5:32 PM MST for Cochise County, Pima County, Arizona. It was in force for 43 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 20, 2005, 5:32 PM MST (00:32 UTC)
Expired: Jul 20, 2005, 6:15 PM MST
In force: 43 min
Issued by: NWS Tucson, AZ
Area: Counties, with a storm outline in the text

Counties Cochise County, AZ, Pima County, AZ

The radar

The Tucson radar (KEMX), 15 km from the middle of the area, began a volume at 00:36 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.

What was reported inside it

Time	Report	Where	Remark
Jul 20, 5:53 PM MST	HAIL 0.75	15 W Benson, AZ	NEAR MESCAL

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 0.5 hours before the alert went out and 49 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: 503 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 3156 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -37 m²/s²
0-3 km storm-relative helicity: 47 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.

000 
WUUS55 KTWC 210035
SVRTWC
AZC003-019-210115-
/O.NEW.KTWC.SV.W.0039.050721T0032Z-050721T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
532 PM MST WED JUL 20 2005

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

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

* UNTIL 615 PM MST

* AT 530 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES WEST OF BENSON...NEAR
  INTERSTATE 10...OR ABOUT 28 MILES NORTH OF SIERRA VISTA...AND
  MOVING WEST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MESCAL BY 545 PM MST
  VAIL BY 615 PM MST

THIS STORM WILL PRODUCE DAMAGING WINDS AND BLOWING DUST...FOLLOWED BY
LOCALLY HEAVY RAINFALL. BE PREPARED FOR SUDDEN CHANGES IN VISIBILITY
AND WIND GUSTS OF 60 MPH OR GREATER.

LAT...LON 3183 11033 3206 11027 3209 11072 3180 11072

$$

WEATHER.GOV/TUCSON

1 follow-up statement

000 
WWUS55 KTWC 210047
SVSTWC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
544 PM MST WED JUL 20 2005

AZC003-019-210115-
/O.CON.KTWC.SV.W.0039.000000T0000Z-050721T0115Z/
COCHISE AZ-PIMA AZ-
544 PM MST WED JUL 20 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 615 PM MST FOR EAST
CENTRAL PIMA AND WEST CENTRAL COCHISE COUNTIES...

AT 540 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED ALONG 
INTERSTATE 10 NEAR MESCAL...OR ABOUT 15 MILES EAST OF VAIL...MOVING 
WEST AT 15 MPH.

THIS STORM WILL PRODUCE DAMAGING WINDS AND BLOWING DUST...FOLLOWED 
QUICKLY BY LOCALLY HEAVY RAINFALL AND HAIL. BE PREPARED FOR SUDDEN 
CHANGES IN VISIBILITY AND WIND GUSTS OF 60 MPH OR GREATER.

LAT...LON 3183 11033 3206 11027 3209 11072 3180 11072

$$

WEATHER.GOV/TUCSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 6:14 PM MST	Severe Thunderstorm Warning	TWC	Pima	61 min
Jul 20, 6:26 PM MST	Severe Thunderstorm Warning	TWC	Graham	49 min
Jul 20, 7:12 PM MST	Severe Thunderstorm Warning	TWC	Graham, Pinal	48 min
Jul 20, 8:07 PM MST	Severe Thunderstorm Warning	TWC	Pinal	42 min
Jul 21, 2:59 PM MST	Severe Thunderstorm Warning	TWC	Pima	37 min
Jul 21, 3:03 PM MST	Severe Thunderstorm Warning	TWC	Pinal	42 min
Jul 21, 3:35 PM MST	Severe Thunderstorm Warning	TWC	Pima	41 min
Jul 21, 3:43 PM MST	Severe Thunderstorm Warning	TWC	Pinal	34 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2005 Every severe thunderstorm warning in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.