Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 20, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 15, 2012, 6:13 PM MST for Graham County, Pinal County, Arizona. It was in force for 32 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 15, 2012, 6:13 PM MST (01:13 UTC)
- Expired
- Jul 15, 2012, 6:45 PM MST
- In force
- 32 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
Counties Graham County, AZ, Pinal County, AZ
The radar
The Phoenix radar (KIWA), 100 km from the middle of the area, began a volume at 01:13 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, 1.2 hours before the alert went out and 101 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
- 880 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 2268 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
431
WUUS55 KTWC 160113
SVRTWC
AZC009-021-160145-
/O.NEW.KTWC.SV.W.0020.120716T0113Z-120716T0145Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
613 PM MST SUN JUL 15 2012
THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EAST CENTRAL PINAL COUNTY IN SOUTH CENTRAL ARIZONA...
WEST CENTRAL GRAHAM COUNTY IN SOUTHEAST ARIZONA...
* UNTIL 645 PM MST
* AT 608 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 13 MILES NORTH OF MAMMOTH...OR
34 MILES SOUTH OF GLOBE...AND MOVING NORTHWEST AT 25 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SAN
CARLOS RESERVOIR AND KEARNY
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 3320 11045 3295 11027 3263 11044 3290 11119
3309 11086 3299 11077 3304 11072 3307 11073
3315 11063 3314 11059 3319 11051
TIME...MOT...LOC 0113Z 122DEG 22KT 3292 11061
$$2 follow-up statements
977
WWUS55 KTWC 160129
SVSTWC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
629 PM MST SUN JUL 15 2012
AZC009-021-160145-
/O.CON.KTWC.SV.W.0020.000000T0000Z-120716T0145Z/
GRAHAM AZ-PINAL AZ-
629 PM MST SUN JUL 15 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM MST
FOR EAST CENTRAL PINAL AND WEST CENTRAL GRAHAM COUNTIES...
AT 622 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT THE SEVERE THUNDERSTORM CONTINUED TO WEAKEN...BUT HAS PRODUCED
A THUNDERSTORM OUTFLOW IN EXCESS OF 60 MPH. THE STORM WAS LOCATED
NEAR HAYDEN...OR 6 MILES NORTHEAST OF DUDLEYVILLE...MOVING NORTHWEST
AT 35 MPH.
LAT...LON 3320 11045 3295 11027 3263 11044 3290 11119
3309 11086 3299 11077 3304 11072 3307 11073
3315 11063 3314 11059 3319 11051
TIME...MOT...LOC 0126Z 126DEG 32KT 3301 11071
$$343
WWUS55 KTWC 160149
SVSTWC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
649 PM MST SUN JUL 15 2012
AZC009-021-160157-
/O.EXP.KTWC.SV.W.0020.000000T0000Z-120716T0145Z/
GRAHAM AZ-PINAL AZ-
649 PM MST SUN JUL 15 2012
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL PINAL AND WEST
CENTRAL GRAHAM COUNTIES HAS EXPIRED...
THE SEVERE THUNDERSTORM THAT PROMPTED THE SEVERE THUNDERSTORM
WARNING HAS FALLEN BELOW SEVERE LEVELS. THEREFORE...IT HAS BEEN
ALLOWED TO EXPIRE AT 645 PM MST.
LAT...LON 3320 11045 3295 11027 3263 11044 3290 11119
3309 11086 3299 11077 3304 11072 3307 11073
3315 11063 3314 11059 3319 11051
TIME...MOT...LOC 0129Z 166DEG 21KT 3302 11062
$$The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 5:00 PM MST | Flash Flood Warning | TWC | Pima, Pinal | 2 hr |
| Jul 15, 6:11 PM MST | Areal Flood Advisory | TWC | Pinal | 67 min |
| Jul 15, 6:17 PM MST | Areal Flood Advisory | TWC | Cochise, Pima, Santa Cruz | 3 hr |
| Jul 15, 6:51 PM MST | Areal Flood Warning | TWC | Pima | 12 hr |
| Jul 15, 7:02 PM MST | Flash Flood Warning | TWC | Pima, Pinal | 118 min |
| Jul 15, 7:11 PM MST | Areal Flood Advisory | TWC | Graham, Greenlee, Pinal | 3 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.