Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 8, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 12, 2012, 4:39 PM MST for Pima County, Arizona. It was in force for 51 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 12, 2012, 4:39 PM MST (23:39 UTC)
- Expired
- Jul 12, 2012, 5:30 PM MST
- In force
- 51 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
County Pima County, AZ
The radar
The Phoenix radar (KIWA), 131 km from the middle of the area, began a volume at 23:42 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 12, 4:45 PM MST | TSTM WND DMG | Santa Rosa, AZ | ROOF DAMAGE TO SIX RESIDENCES |
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 12:00Z, 11.7 hours before the alert went out and 111 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
- 650 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 1495 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
923
WUUS55 KTWC 122339
SVRTWC
AZC019-130030-
/O.NEW.KTWC.SV.W.0008.120712T2339Z-120713T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
439 PM MST THU JUL 12 2012
THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA...
THIS INCLUDES THE CITY OF SELLS...
* UNTIL 530 PM MST
* AT 430 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS
IN EXCESS OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM SANTA ROSA TO 11 MILES NORTHWEST OF SELLS TO 24
MILES SOUTH OF SELLS...OR ALONG A LINE EXTENDING FROM 31 MILES
NORTH OF SELLS TO 11 MILES NORTHWEST OF SELLS TO 24 MILES SOUTH OF
SELLS...AND MOVING WEST AT 20 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BIG
FIELDS...COWLIC...COVERED WELLS...MOUNTAIN VILLAGE...VENTANA...
KUPK...VAYA CHIN...PISINIMO...PISINEMO...SAN SIMON VILLAGE...SANTA
CRUZ AND PAPAGO FARMS.
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 3249 11188 3153 11167 3180 11248 3248 11248
TIME...MOT...LOC 2338Z 105DEG 26KT 3236 11210 3204 11208
3159 11185
$$
GL2 follow-up statements
162
WWUS55 KTWC 122357
SVSTWC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
457 PM MST THU JUL 12 2012
AZC019-130030-
/O.CON.KTWC.SV.W.0008.000000T0000Z-120713T0030Z/
PIMA AZ-
457 PM MST THU JUL 12 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM MST
FOR CENTRAL PIMA COUNTY...
AT 449 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM SANTA ROSA TO MOUNTAIN VILLAGE TO
COWLIC...OR ALONG A LINE EXTENDING FROM 32 MILES NORTH OF SELLS TO 18
MILES NORTHWEST OF SELLS TO 12 MILES SOUTHWEST OF SELLS...MOVING WEST
AT 20 MPH.
LAT...LON 3249 11188 3153 11167 3180 11248 3248 11248
TIME...MOT...LOC 2357Z 105DEG 26KT 3237 11214 3211 11216
3182 11209
$$
GL407
WWUS55 KTWC 130010
SVSTWC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
510 PM MST THU JUL 12 2012
AZC019-130030-
/O.CON.KTWC.SV.W.0008.000000T0000Z-120713T0030Z/
PIMA AZ-
510 PM MST THU JUL 12 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM MST
FOR CENTRAL PIMA COUNTY...
AT 505 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 6 MILES NORTHWEST OF ANEGAM TO MOUNTAIN VILLAGE TO 7
MILES SOUTHWEST OF COWLIC...OR ALONG A LINE EXTENDING FROM 37 MILES
NORTH OF SELLS TO 23 MILES NORTHWEST OF SELLS TO 17 MILES SOUTHWEST
OF SELLS...MOVING WEST AT 30 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 3249 11188 3153 11167 3180 11248 3248 11248
TIME...MOT...LOC 0010Z 105DEG 26KT 3242 11216 3212 11225
3176 11212
$$
GLThe office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 3:14 PM MST | Severe Thunderstorm Warning | TWC | Pima | 33 min |
| Jul 12, 3:25 PM MST | Special Weather Statement | TWC | Santa Cruz | 50 min |
| Jul 12, 3:39 PM MST | Areal Flood Advisory | TWC | Pima | 2 hr |
| Jul 12, 3:54 PM MST | Severe Thunderstorm Warning | TWC | Pima | 51 min |
| Jul 12, 3:59 PM MST | Special Weather Statement | TWC | Pima | 61 min |
| Jul 12, 4:30 PM MST | Flash Flood Warning | TWC | Pima | 2 hr |
Nearby
Severe Thunderstorm Warnings in Arizona, 2012Every severe thunderstorm warning in 2012
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.