Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 47, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 10, 2021, 8:29 PM MST for Pima County, Arizona. It was in force for 61 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 10, 2021, 8:29 PM MST (03:29 UTC)
- Expired
- Jul 10, 2021, 9:30 PM MST
- In force
- 61 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Pima County, AZ
The radar
The Tucson radar (KEMX), 96 km from the middle of the area, began a volume at 03:31 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 10, 4:52 PM MST | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 3.5 hours before the alert went out and 87 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
- 1025 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 3304 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
508
WUUS55 KTWC 110329
SVRTWC
AZC019-110430-
/O.NEW.KTWC.SV.W.0047.210711T0329Z-210711T0430Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
829 PM MST Sat Jul 10 2021
The National Weather Service in Tucson has issued a
* Severe Thunderstorm Warning for...
South central Pima County in southeastern Arizona...
* Until 930 PM MST.
* At 829 PM MST, a severe thunderstorm was located 12 miles northeast
of San Miguel, or 22 miles southeast of Sells, moving west at 20
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Topawa, San Miguel, Ali Chukson, Fresnal, Choulic, Newfield,
Coldfields, Sasabe, Fresnal Canyon, Hashan Chuchg, South Komelik
and Ali Molina.
This includes the following highways...
Route 86 between mile markers 117 and 121.
Route 286 between mile markers 1 and 25.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3146 11145 3160 11192 3195 11183 3191 11143
TIME...MOT...LOC 0329Z 104DEG 17KT 3171 11160
HAIL...1.00IN
WIND...60MPH
$$2 follow-up statements
375
WWUS55 KTWC 110411
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
911 PM MST Sat Jul 10 2021
AZC019-110430-
/O.CON.KTWC.SV.W.0047.000000T0000Z-210711T0430Z/
Pima-
911 PM MST Sat Jul 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM MST
FOR SOUTH CENTRAL PIMA COUNTY...
At 910 PM MST, a severe thunderstorm was located near Topawa, or 11
miles south of Sells, moving west at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Topawa, San Miguel, Ali Chukson, Fresnal, Choulic, Newfield,
Coldfields, Fresnal Canyon, Hashan Chuchg, South Komelik and Ali
Molina.
This includes Route 86 between mile markers 117 and 121.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3160 11192 3195 11183 3192 11157 3151 11161
TIME...MOT...LOC 0410Z 104DEG 17KT 3176 11183
HAIL...1.00IN
WIND...60MPH
$$375
WWUS55 KTWC 110421
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
921 PM MST Sat Jul 10 2021
AZC019-110431-
/O.EXP.KTWC.SV.W.0047.000000T0000Z-210711T0430Z/
Pima-
921 PM MST Sat Jul 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL PIMA COUNTY WILL
EXPIRE AT 930 PM MST...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and brief heavy rain are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until midnight MST for
southeastern Arizona.
LAT...LON 3160 11192 3195 11183 3192 11157 3151 11161
TIME...MOT...LOC 0421Z 104DEG 17KT 3176 11184
$$The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 5:10 PM MST | Flash Flood Warning | TWC | Cochise | 2 hr |
| Jul 10, 5:14 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Graham | 61 min |
| Jul 10, 5:15 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 45 min |
| Jul 10, 5:23 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 52 min |
| Jul 10, 5:30 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 60 min |
| Jul 10, 5:42 PM MST | Flash Flood Warning | TWC | Santa Cruz | 2 hr |
| Jul 10, 5:46 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Pima, Santa Cruz | 59 min |
| Jul 10, 6:05 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 40 min |
| Jul 10, 6:13 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Graham | 26 min |
| Jul 10, 6:22 PM MST | Severe Thunderstorm Warning | TWC | Pima, Santa Cruz | 53 min |
| Jul 10, 6:50 PM MST | Special Weather Statement | TWC | 25 min | |
| Jul 10, 6:57 PM MST | Dust Storm Warning | TWC | Pima, Santa Cruz | 63 min |
| Jul 10, 6:57 PM MST | Severe Thunderstorm Warning | TWC | Pima, Santa Cruz | 48 min |
| Jul 10, 7:06 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Pima | 39 min |
| Jul 10, 7:07 PM MST | Dust Storm Warning | TWC | Pima, Pinal | 83 min |
| Jul 10, 7:14 PM MST | Severe Thunderstorm Warning | TWC | Pima | 61 min |
| Jul 10, 7:29 PM MST | Flash Flood Warning | TWC | Cochise, Pima | 2 hr |
| Jul 10, 7:35 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Pima | 55 min |
| Jul 10, 8:00 PM MST | Dust Storm Warning | TWC | Pima, Pinal | 86 min |
| Jul 10, 8:06 PM MST | Severe Thunderstorm Warning | TWC | Pima | 39 min |
| Jul 10, 8:12 PM MST | Severe Thunderstorm Warning | TWC | Pima | 48 min |
| Jul 10, 8:22 PM MST | Flash Flood Warning | TWC | Pima | 113 min |
| Jul 10, 8:40 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 66 min |
| Jul 10, 8:41 PM MST | Flash Flood Warning | TWC | Pima | 2 hr |
| Jul 10, 8:48 PM MST | Areal Flood Advisory | TWC | Pima | 117 min |
| Jul 10, 8:51 PM MST | Areal Flood Advisory | TWC | Pima | 114 min |
| Jul 10, 8:51 PM MST | Tornado Warning | TWC | Pima | 14 min |
| Jul 10, 9:45 PM MST | Special Weather Statement | TWC | 60 min | |
| Jul 10, 10:03 PM MST | Severe Thunderstorm Warning | TWC | Pima | 42 min |
| Jul 10, 10:20 PM MST | Areal Flood Advisory | TWC | Pima, Pinal | 3 hr |
| Jul 10, 10:36 PM MST | Areal Flood Advisory | TWC | Pima | 3 hr |
| Jul 11, 4:12 PM MST | Special Weather Statement | TWC | Greenlee | 33 min |
| Jul 11, 4:44 PM MST | Special Weather Statement | TWC | Greenlee | 46 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2021Every severe thunderstorm warning in 2021
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.