Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 6, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 12, 2012, 3:14 PM MST for Pima County, Arizona. It was in force for 33 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, 3:14 PM MST (22:14 UTC)
- Expired
- Jul 12, 2012, 3:47 PM MST
- In force
- 33 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
County Pima County, AZ
The radar
The Tucson radar (KEMX), 42 km from the middle of the area, began a volume at 22:15 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, 3:20 PM MST | TSTM WND DMG | 5 Ne Green Valley, AZ | 6 INCH DIAMETER TREE LIMB DOWN |
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, 10.2 hours before the alert went out and 33 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.
813 WUUS55 KTWC 122214 SVRTWC AZC019-122300- /O.NEW.KTWC.SV.W.0006.120712T2214Z-120712T2300Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 314 PM MST THU JUL 12 2012 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA... THIS INCLUDES THE CITY OF GREEN VALLEY... * UNTIL 400 PM MST * AT 306 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 GREEN VALLEY...AND MOVING NORTHWEST AT 10 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SAHUARITA PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO DAMAGING WINDS...FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! IF YOU CAN HEAR THUNDER...LIGHTNING IS CLOSE ENOUGH TO STRIKE YOU. && LAT...LON 3188 11125 3210 11112 3193 11082 3177 11092 TIME...MOT...LOC 2214Z 118DEG 7KT 3189 11096 $$
1 follow-up statement
291 WWUS55 KTWC 122247 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 347 PM MST THU JUL 12 2012 AZC019-122255- /O.CAN.KTWC.SV.W.0006.000000T0000Z-120712T2300Z/ PIMA AZ- 347 PM MST THU JUL 12 2012 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL PIMA COUNTY IS CANCELLED... THE THUNDERSTORM THAT PRODUCED SMALL HAIL ALONG WITH SOME WIND DAMAGE NORTHEAST OF GREEN VALLEY HAS DIMINISHED. THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED. LAT...LON 3188 11125 3210 11112 3193 11082 3177 11092 TIME...MOT...LOC 2245Z 118DEG 7KT 3192 11102 $$
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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 |
| 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.