Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 203, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Oct 5, 2021, 1:58 PM MST for Cochise County, Graham County, Arizona. It was in force for 47 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
- Oct 5, 2021, 1:58 PM MST (20:58 UTC)
- Expired
- Oct 5, 2021, 2:45 PM MST
- In force
- 47 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Tornado
- Possible
- Damage threat
- Considerable
- Hail
- 1.5 in
- Wind
- 70.0 mph
Counties Cochise County, AZ, Graham County, AZ
The radar
The Tucson radar (KEMX), 107 km from the middle of the area, began a volume at 21:01 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 |
|---|---|---|---|
| Oct 5, 11:46 AM MST | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 9.0 hours before the alert went out and 124 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
- 4 J/kg
- Mixed-layer CIN
- -376 J/kg
- Mixed-layer LCL
- 2029 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 114 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
204
WUUS55 KTWC 052058
SVRTWC
AZC003-009-052145-
/O.NEW.KTWC.SV.W.0203.211005T2058Z-211005T2145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
158 PM MST Tue Oct 5 2021
The National Weather Service in Tucson has issued a
* Severe Thunderstorm Warning for...
South central Graham County in southeastern Arizona...
North central Cochise County in southeastern Arizona...
* Until 245 PM MST.
* At 158 PM MST, a severe thunderstorm was located 8 miles west of
Bowie, or 12 miles east of Willcox, moving northeast at 20 mph.
HAZARD...70 mph wind gusts and ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
considerable tree damage. Wind damage is also likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Bowie.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter such as an interior room, a
bathroom, closet or basement.
&&
LAT...LON 3218 10968 3223 10977 3255 10956 3230 10927
TIME...MOT...LOC 2058Z 228DEG 19KT 3228 10962
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$2 follow-up statements
338
WWUS55 KTWC 052131
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
231 PM MST Tue Oct 5 2021
AZC003-009-052145-
/O.CON.KTWC.SV.W.0203.000000T0000Z-211005T2145Z/
Graham-Cochise-
231 PM MST Tue Oct 5 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM MST
FOR SOUTHEASTERN GRAHAM AND NORTH CENTRAL COCHISE COUNTIES...
At 230 PM MST, a severe thunderstorm was located over Bowie, or 23
miles east of Willcox, moving northeast at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Bowie.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3226 10952 3232 10958 3247 10947 3240 10939
3232 10929
TIME...MOT...LOC 2130Z 238DEG 17KT 3234 10945
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$320
WWUS55 KTWC 052142
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
242 PM MST Tue Oct 5 2021
AZC003-009-052152-
/O.EXP.KTWC.SV.W.0203.000000T0000Z-211005T2145Z/
Graham-Cochise-
242 PM MST Tue Oct 5 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GRAHAM AND NORTH
CENTRAL COCHISE COUNTIES WILL EXPIRE AT 245 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 small hail
and gusty winds are still possible with this thunderstorm.
LAT...LON 3226 10952 3232 10958 3247 10947 3240 10939
3232 10929
TIME...MOT...LOC 2142Z 228DEG 19KT 3236 10942
$$The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 5, 12:41 PM MST | Special Weather Statement | TWC | Cochise | 49 min |
| Oct 5, 12:54 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 36 min |
| Oct 5, 1:27 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 48 min |
| Oct 5, 2:48 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 42 min |
| Oct 5, 3:23 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 52 min |
| Oct 5, 3:32 PM MST | Special Weather Statement | TWC | Graham | 58 min |
| Oct 5, 3:38 PM MST | Severe Thunderstorm Warning | TWC | Pima | 52 min |
| Oct 5, 4:18 PM MST | Severe Thunderstorm Warning | TWC | Graham | 30 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.