Alert archive / Arizona / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 9, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 4, 2011, 12:54 PM MST for Santa Cruz 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 4, 2011, 12:54 PM MST (19:54 UTC)
- Expired
- Jul 4, 2011, 1:45 PM MST
- In force
- 51 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
County Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 42 km from the middle of the area, began a volume at 19:56 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, 7.9 hours before the alert went out and 75 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
- 1243 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 890 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 152 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.6
The text
As transmitted, in the capitals the NWS used until 2016.
528
WUUS55 KTWC 041954
SVRTWC
AZC023-042045-
/O.NEW.KTWC.SV.W.0009.110704T1954Z-110704T2045Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
1254 PM MST MON JUL 4 2011
THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN SANTA CRUZ COUNTY IN SOUTHEAST ARIZONA...
* UNTIL 145 PM MST
* AT 1248 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM CANELO TO PATAGONIA TO PATAGONIA LAKE...AND MOVING NORTHWEST
AT 10 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RIO
RICO
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEEK SHELTER INDOORS. EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH...
LARGE HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THESE STORMS.
&&
LAT...LON 3150 11047 3150 11060 3135 11077 3147 11105
3166 11089 3167 11055
TIME...MOT...LOC 1953Z 121DEG 7KT 3153 11058 3155 11069
3145 11083
$$
MEYER2 follow-up statements
086
WWUS55 KTWC 042012
SVSTWC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
112 PM MST MON JUL 4 2011
AZC023-042045-
/O.CON.KTWC.SV.W.0009.000000T0000Z-110704T2045Z/
SANTA CRUZ AZ-
112 PM MST MON JUL 4 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM MST
FOR EASTERN SANTA CRUZ COUNTY...
AT 110 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 8 MILES NORTHEAST OF PATAGONIA TO NEAR PATAGONIA TO
NEAR PATAGONIA LAKE...MOVING WEST AND NORTHWEST AT 10 MPH. NOGALES
INTERNATIONAL AIRPORT ON THE FAR SOUTHERN EDGE OF THE STORMS
REPORTED A WIND GUST OF 50 MPH WITH VERY HEAVY RAIN AT 103 PM MST.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEEK SHELTER INDOORS. EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH...
LARGE HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THIS STORM.
&&
LAT...LON 3150 11047 3150 11060 3135 11077 3147 11105
3166 11089 3167 11055
TIME...MOT...LOC 2010Z 121DEG 7KT 3162 11066 3157 11074
3147 11088
$$
MEYER795
WWUS55 KTWC 042040
SVSTWC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
140 PM MST MON JUL 4 2011
AZC023-042049-
/O.EXP.KTWC.SV.W.0009.000000T0000Z-110704T2045Z/
SANTA CRUZ AZ-
140 PM MST MON JUL 4 2011
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN SANTA CRUZ COUNTY WILL
EXPIRE AT 145 PM MST...
AT 139 PM MST THE AREA OF THUNDERSTORMS HAD STARTED TO WEAKEN AND
SHIFT OFF TO THE NORTHWEST. MODERATE RAINFALL WILL CONTINUE IN SOME
LOCATIONS THAT JUST RECEIVED HEAVY RAIN...AND THE THREAT OF FLOODING
WILL CONTINUE.
LAT...LON 3150 11047 3150 11060 3135 11077 3147 11105
3166 11089 3167 11055
TIME...MOT...LOC 2039Z 121DEG 7KT 3165 11072 3160 11080
3150 11094
$$
MEYERThe office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 10:27 PM MST | Areal Flood Advisory | TWC | Pima | 68 min |
| Jul 4, 5:53 AM MST | Areal Flood Advisory | TWC | Pima, Pinal | 112 min |
| Jul 4, 11:58 AM MST | Severe Thunderstorm Warning | TWC | Pima | 47 min |
| Jul 4, 1:17 PM MST | Flash Flood Warning | TWC | Santa Cruz | 58 min |
| Jul 4, 1:38 PM MST | Areal Flood Advisory | TWC | Cochise | 112 min |
| Jul 4, 2:46 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Pima | 44 min |
| Jul 4, 3:39 PM MST | Areal Flood Advisory | TWC | Pima | 55 min |
| Jul 4, 4:03 PM MST | Severe Thunderstorm Warning | TWC | Pima | 42 min |
| Jul 4, 4:15 PM MST | Severe Thunderstorm Warning | TWC | Pima | 39 min |
| Jul 4, 4:31 PM MST | Flash Flood Warning | TWC | Pima | 89 min |
| Jul 4, 4:44 PM MST | Dust Storm Warning | TWC | Pima, Pinal | 6 min |
| Jul 4, 4:48 PM MST | Severe Thunderstorm Warning | TWC | Pima | 57 min |
| Jul 4, 4:50 PM MST | Dust Storm Warning | TWC | Pima, Pinal | 70 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2011Every severe thunderstorm warning in 2011
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.