Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 77, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 14, 2012, 5:50 PM MST for Pima County, Arizona. It was in force for 40 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
- Aug 14, 2012, 5:50 PM MST (00:50 UTC)
- Expired
- Aug 14, 2012, 6:30 PM MST
- In force
- 40 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 00:53 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 (KDMA), launched 00:00Z, 0.8 hours before the alert went out and 105 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
- 193 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 3692 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -35 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
199 WUUS55 KTWC 150050 SVRTWC AZC019-150130- /O.NEW.KTWC.SV.W.0077.120815T0050Z-120815T0130Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 550 PM MST TUE AUG 14 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 630 PM MST * AT 544 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 8 MILES NORTHWEST OF SELLS...AND MOVING SOUTHWEST AT 20 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TOPAWA...BIG FIELDS...COWLIC AND VAMORI. 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 3162 11182 3170 11215 3220 11214 3203 11176 TIME...MOT...LOC 0050Z 034DEG 17KT 3194 11202 $$ SMR
2 follow-up statements
487 WWUS55 KTWC 150108 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 608 PM MST TUE AUG 14 2012 AZC019-150130- /O.CON.KTWC.SV.W.0077.000000T0000Z-120815T0130Z/ PIMA AZ- 608 PM MST TUE AUG 14 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM MST FOR CENTRAL PIMA COUNTY... AT 558 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR BIG FIELDS...OR 10 MILES WEST OF SELLS...MOVING SOUTH-SOUTHWEST AT 20 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEEK SHELTER INDOORS. EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH...HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THIS STORM. && LAT...LON 3162 11182 3170 11215 3220 11214 3203 11176 TIME...MOT...LOC 0107Z 034DEG 17KT 3187 11207 $$ SMR
453 WWUS55 KTWC 150122 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 622 PM MST TUE AUG 14 2012 AZC019-150131- /O.EXP.KTWC.SV.W.0077.000000T0000Z-120815T0130Z/ PIMA AZ- 622 PM MST TUE AUG 14 2012 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL PIMA COUNTY WILL EXPIRE AT 630 PM MST... AT 620 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE STORM WITHIN THE WARNING AREA CONTINUED TO DIMINISH...MINIMIZING THE THREAT FOR WIND GUSTS OVER 60 MPH AND LARGE HAIL. THUS...THE SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE. LAT...LON 3162 11182 3170 11215 3220 11214 3203 11176 TIME...MOT...LOC 0121Z 034DEG 17KT 3182 11211 $$ SMR
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 5:18 PM MST | Severe Thunderstorm Warning | TWC | Pima | 42 min |
| Aug 14, 5:21 PM MST | Areal Flood Advisory | TWC | Cochise | 84 min |
| Aug 14, 6:10 PM MST | Special Weather Statement | TWC | Santa Cruz | 65 min |
| Aug 14, 6:24 PM MST | Special Weather Statement | TWC | 51 min | |
| Aug 14, 6:39 PM MST | Special Weather Statement | TWC | Pima | 51 min |
| Aug 14, 6:41 PM MST | Areal Flood Advisory | TWC | Pima | 79 min |
| Aug 14, 6:46 PM MST | Severe Thunderstorm Warning | TWC | Pima | 44 min |
| Aug 14, 8:02 PM MST | Areal Flood Advisory | TWC | Pima | 88 min |
| Aug 14, 9:32 PM MST | Special Weather Statement | TWC | Pinal | 58 min |
| Aug 15, 1:46 AM MST | Severe Thunderstorm Warning | TWC | Pima | 29 min |
| Aug 15, 2:06 PM MST | Areal Flood Advisory | TWC | Cochise | 84 min |
| Aug 15, 2:43 PM MST | Flash Flood Warning | TWC | Cochise | 92 min |
| Aug 15, 4:22 PM MST | Special Weather Statement | TWC | Graham | 53 min |
| Aug 15, 4:43 PM MST | Special Weather Statement | TWC | Cochise | 47 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.