Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 44, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 6, 2012, 4:56 PM MST for Pima County, Arizona. It was in force for 34 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
- Aug 6, 2012, 4:56 PM MST (23:56 UTC)
- Expired
- Aug 6, 2012, 5:30 PM MST
- In force
- 34 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
County Pima County, AZ
The radar
The Tucson radar (KEMX), 68 km from the middle of the area, began a volume at 23:55 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 |
|---|---|---|---|
| Aug 6, 5:18 PM MST | TSTM WND DMG | 5 Ssw Three Points, AZ | ROOF DAMAGE IN DIAMOND BELL RANCH...NUMEROUS SHEDS DAMAGED...8 INCH BRICK WALL ON CAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Tuscon, AZ (KDMA), launched 12:00Z, 11.9 hours before the alert went out and 44 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
- 281 J/kg
- Mixed-layer CIN
- -277 J/kg
- Mixed-layer LCL
- 1928 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
448 WUUS55 KTWC 062356 SVRTWC AZC019-070030- /O.NEW.KTWC.SV.W.0044.120806T2356Z-120807T0030Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 456 PM MST MON AUG 6 2012 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA... * UNTIL 530 PM MST * AT 446 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 NEAR THREE POINTS...MOVING WEST AT 10 MPH. * THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED COUNTY. 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 3194 11142 3212 11142 3208 11121 3199 11120 TIME...MOT...LOC 2355Z 089DEG 10KT 3203 11128 $$
2 follow-up statements
152 WWUS55 KTWC 070012 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 512 PM MST MON AUG 6 2012 AZC019-070030- /O.CON.KTWC.SV.W.0044.000000T0000Z-120807T0030Z/ PIMA AZ- 512 PM MST MON AUG 6 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM MST FOR CENTRAL PIMA COUNTY... AT 504 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED JUST SOUTH OF THREE POINTS...MOVING WEST SOUTHWEST AT 10 MPH. LAT...LON 3194 11142 3212 11142 3208 11121 3199 11120 TIME...MOT...LOC 0011Z 089DEG 10KT 3203 11133 $$
393 WWUS55 KTWC 070027 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 527 PM MST MON AUG 6 2012 AZC019-070036- /O.EXP.KTWC.SV.W.0044.000000T0000Z-120807T0030Z/ PIMA AZ- 527 PM MST MON AUG 6 2012 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL PIMA COUNTY WILL EXPIRE AT 530 PM MST... DOPPLER RADAR SHOWED THAT THE SEVERE THUNDERSTORM NEAR THREE POINTS HAS WEAKENED BELOW SEVERE LIMIT. IT WILL REMAIN STRONG FOR THE NEXT 10 TO 15 MINUTES...PRODUCING WIND GUSTS TO 45 MPH AND MODERATE TO LOCALLY HEAVY RAIN. MOVEMENT OF THE STORM IS TO THE WEST SOUTHWEST AROUND 10 MPH. LAT...LON 3194 11142 3212 11142 3208 11121 3199 11120 TIME...MOT...LOC 0026Z 089DEG 10KT 3203 11138 $$
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 5:21 PM MST | Special Weather Statement | TWC | Santa Cruz | 39 min |
| Aug 5, 5:55 PM MST | Special Weather Statement | TWC | 50 min | |
| Aug 5, 6:08 PM MST | Severe Thunderstorm Warning | TWC | Pima | 52 min |
| Aug 5, 6:26 PM MST | Areal Flood Advisory | TWC | Pima | 94 min |
| Aug 5, 6:56 PM MST | Severe Thunderstorm Warning | TWC | Pima | 49 min |
| Aug 5, 6:58 PM MST | Severe Thunderstorm Warning | TWC | Pima | 24 min |
| Aug 5, 7:11 PM MST | Dust Storm Warning | TWC | Pima, Pinal | 86 min |
| Aug 5, 7:32 PM MST | Special Weather Statement | TWC | Pinal | 43 min |
| Aug 5, 7:48 PM MST | Special Weather Statement | TWC | Cochise | 27 min |
| Aug 6, 2:23 PM MST | Special Weather Statement | TWC | Pima | 52 min |
| Aug 6, 4:41 PM MST | Special Weather Statement | TWC | 64 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.