Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 208, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Oct 5, 2021, 5:06 PM MST for Graham County, Pinal County, Arizona. It was in force for 35 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, 5:06 PM MST (00:06 UTC)
- Expired
- Oct 5, 2021, 5:41 PM MST
- In force
- 35 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Graham County, AZ, Pinal County, AZ
The radar
The Phoenix radar (KIWA), 113 km from the middle of the area, began a volume at 00:05 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 00:00Z, 0.1 hours before the alert went out and 123 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
- 364 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 2251 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
154
WUUS55 KTWC 060006
SVRTWC
AZC009-021-060100-
/O.NEW.KTWC.SV.W.0208.211006T0006Z-211006T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
506 PM MST Tue Oct 5 2021
The National Weather Service in Tucson has issued a
* Severe Thunderstorm Warning for...
West central Graham County in southeastern Arizona...
Eastern Pinal County in southeastern Arizona...
* Until 600 PM MST.
* At 505 PM MST, a severe thunderstorm was located 9 miles north of
Aravaipa Canyon Wilderness, or 10 miles east of Christmas, moving
northeast at 15 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...
San Carlos Reservoir.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3333 11021 3296 11046 3305 11066 3314 11062
3313 11059 3317 11054 3316 11053 3318 11053
3320 11040 3329 11046 3338 11044 3340 11038
TIME...MOT...LOC 0005Z 208DEG 12KT 3304 11056
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$1 follow-up statement
816
WWUS55 KTWC 060041
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
541 PM MST Tue Oct 5 2021
AZC009-021-060051-
/O.CAN.KTWC.SV.W.0208.000000T0000Z-211006T0100Z/
Graham-Pinal-
541 PM MST Tue Oct 5 2021
...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL GRAHAM AND
EASTERN PINAL COUNTIES IS CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM MST for
southeastern Arizona.
LAT...LON 3333 11021 3296 11046 3305 11066 3314 11062
3313 11059 3317 11054 3316 11053 3318 11053
3320 11040 3329 11046 3338 11044 3340 11038
TIME...MOT...LOC 0036Z 208DEG 12KT 3313 11050
$$The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 5, 5:18 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 27 min |
| Oct 5, 5:26 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Graham | 49 min |
| Oct 5, 6:11 PM MST | Severe Thunderstorm Warning | TWC | Graham, Greenlee | 48 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.