Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 7, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 12, 2012, 3:54 PM MST for Pima County, Arizona. It was in force for 51 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 12, 2012, 3:54 PM MST (22:54 UTC)
- Expired
- Jul 12, 2012, 4:45 PM MST
- In force
- 51 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
County Pima County, AZ
The radar
The Tucson radar (KEMX), 124 km from the middle of the area, began a volume at 22:57 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 12:00Z, 10.9 hours before the alert went out and 110 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.
504
WUUS55 KTWC 122254
SVRTWC
AZC019-122345-
/O.NEW.KTWC.SV.W.0007.120712T2254Z-120712T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
354 PM MST THU JUL 12 2012
THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTH CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA...
THIS INCLUDES THE CITY OF SELLS...
* UNTIL 445 PM MST
* AT 348 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 20 MILES SOUTH OF SELLS...AND
MOVING NORTHWEST AT 5 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
VAMORI...TOPAWA...SOUTH KOMELIK...COWLIC...BIG FIELDS AND ARTESA.
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 3161 11196 3162 11201 3165 11210 3210 11209
3170 11159 3152 11169
TIME...MOT...LOC 2254Z 129DEG 3KT 3164 11179
$$1 follow-up statement
273
WWUS55 KTWC 122320
SVSTWC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
420 PM MST THU JUL 12 2012
AZC019-122345-
/O.CON.KTWC.SV.W.0007.000000T0000Z-120712T2345Z/
PIMA AZ-
420 PM MST THU JUL 12 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM MST
FOR SOUTH CENTRAL PIMA COUNTY...
AT 412 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CHOULIC AND SAN
MIGUEL...OR 19 MILES SOUTH OF SELLS...MOVING NORTHWEST AT 5 TO 10
MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEEK SHELTER INDOORS. EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH...
LARGE HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THIS STORM.
&&
LAT...LON 3161 11196 3162 11201 3165 11210 3210 11209
3170 11159 3152 11169
TIME...MOT...LOC 2319Z 129DEG 3KT 3165 11181
$$The 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, 3:59 PM MST | Special Weather Statement | TWC | Pima | 61 min |
| Jul 12, 4:30 PM MST | Flash Flood Warning | TWC | Pima | 2 hr |
| Jul 12, 4:39 PM MST | Severe Thunderstorm Warning | TWC | Pima | 51 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.