Alert archive / Arizona / Tornado Warnings in 2021
Tornado Warning 4, NWS Tucson, AZ
NWS Tucson, AZ issued this tornado warning at Aug 6, 2021, 6:19 PM MST for Pima County, Arizona. It was in force for 26 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 6, 2021, 6:19 PM MST (01:19 UTC)
- Expired
- Aug 6, 2021, 6:45 PM MST
- In force
- 26 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.5 in
County Pima County, AZ
The radar
The Phoenix radar (KIWA), 126 km from the middle of the area, began a volume at 01:22 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 00:00Z, 1.3 hours before the alert went out and 115 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
- 1326 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 2589 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- -6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
561
WFUS55 KTWC 070119
TORTWC
AZC019-070145-
/O.NEW.KTWC.TO.W.0004.210807T0119Z-210807T0145Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tucson AZ
619 PM MST Fri Aug 6 2021
The National Weather Service in Tucson has issued a
* Tornado Warning for...
North central Pima County in southeastern Arizona...
* Until 645 PM MST.
* At 618 PM MST, a severe thunderstorm capable of producing a tornado
was located near Santa Rosa, or 28 miles northwest of Sells, moving
northeast at 55 mph.
HAZARD...Tornado and ping pong ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This tornadic thunderstorm will remain over mainly remote areas of
north central Pima County, including the following locations...
Covered Wells and Mountain Village.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3211 11212 3227 11228 3239 11212 3223 11194
TIME...MOT...LOC 0118Z 229DEG 46KT 3228 11211
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
$$
Singer1 follow-up statement
208
WWUS55 KTWC 070136
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
636 PM MST Fri Aug 6 2021
AZC019-070145-
/O.CON.KTWC.TO.W.0004.000000T0000Z-210807T0145Z/
Pima-
636 PM MST Fri Aug 6 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM MST FOR NORTH
CENTRAL PIMA COUNTY...
At 636 PM MST, a severe thunderstorm capable of producing a tornado
was located 11 miles northeast of Santa Rosa, or 33 miles south of
Casa Grande, moving northeast at 55 mph.
HAZARD...Tornado and ping pong ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Santa Rosa, Covered Wells and Mountain Village.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3211 11212 3227 11228 3239 11212 3223 11194
TIME...MOT...LOC 0136Z 229DEG 46KT 3244 11190
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
$$
SingerThe office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 5:01 PM MST | Severe Thunderstorm Warning | TWC | Pima | 44 min |
| Aug 6, 5:02 PM MST | Special Weather Statement | TWC | Pima | 43 min |
| Aug 6, 5:14 PM MST | Special Weather Statement | TWC | Greenlee | 46 min |
| Aug 6, 5:18 PM MST | Severe Thunderstorm Warning | TWC | Pima | 42 min |
| Aug 6, 5:27 PM MST | Areal Flood Advisory | TWC | Pima | 2 hr |
| Aug 6, 5:28 PM MST | Areal Flood Advisory | TWC | Pima | 2 hr |
| Aug 6, 5:29 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 46 min |
| Aug 6, 5:40 PM MST | Areal Flood Advisory | TWC | Pima | 3 hr |
| Aug 6, 5:50 PM MST | Special Weather Statement | TWC | Graham | 25 min |
| Aug 6, 6:00 PM MST | Flash Flood Warning | TWC | Pima | 3 hr |
| Aug 6, 6:02 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 58 min |
| Aug 6, 6:23 PM MST | Flash Flood Warning | TWC | Pima, Pinal | 4 hr |
| Aug 6, 7:02 PM MST | Special Weather Statement | TWC | 43 min | |
| Aug 6, 9:25 PM MST | Areal Flood Warning | TWC | Pima | 3 hr |
| Aug 7, 12:54 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 51 min |
| Aug 7, 1:41 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 49 min |
| Aug 7, 2:47 PM MST | Special Weather Statement | TWC | Cochise | 28 min |
| Aug 7, 2:55 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 34 min |
| Aug 7, 3:09 PM MST | Areal Flood Advisory | TWC | Cochise | 111 min |
| Aug 7, 3:17 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 43 min |
| Aug 7, 3:25 PM MST | Special Weather Statement | TWC | Greenlee | 50 min |
| Aug 7, 3:53 PM MST | Special Weather Statement | TWC | 52 min | |
| Aug 7, 4:51 PM MST | Special Weather Statement | TWC | Pima | 39 min |
| Aug 7, 4:57 PM MST | Special Weather Statement | TWC | Cochise | 48 min |
Nearby
Tornado Warnings in Arizona, 2021Every tornado warning in 2021Tornadoes 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.