Alert archive / Arizona / Special Weather Statements in 2021

Special Weather Statement, NWS Tucson, AZ

August 23, 2021Cochise County, Arizona

NWS Tucson, AZ issued this special weather statement at Aug 23, 2021, 2:13 PM MST for Cochise 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: Aug 23, 2021, 2:13 PM MST (21:13 UTC)
Expired: Aug 23, 2021, 3:00 PM MST
In force: 47 min
Issued by: NWS Tucson, AZ
Hail: 0.25 in
Wind: 50

County Cochise County, AZ

The radar

The Tucson radar (KEMX), 88 km from the middle of the area, began a volume at 21:16 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, 9.2 hours before the alert went out and 119 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2559 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -6 m²/s²
0-3 km storm-relative helicity: 50 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

807 
WWUS85 KTWC 232113
SPSTWC

Special Weather Statement
National Weather Service Tucson AZ
213 PM MST Mon Aug 23 2021
 
AZZ508-512-513-232200-
Dragoon/Mule/Huachuca and Santa Rita Mountains including
Bisbee/Canelo Hills/Madera Canyon-Chiricahua Mountains including
Chiricahua National Monument-Eastern Cochise County Below 5000 Feet
including Douglas/Willcox-
213 PM MST Mon Aug 23 2021

...A strong thunderstorm will impact portions of central Cochise
County through 300 PM MST...

At 213 PM MST, Doppler radar was tracking a strong thunderstorm 10
miles southeast of Pearce-Sunsites, or 28 miles south of Willcox,
moving northeast at 5 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations impacted include...
Pearce-Sunsites and Sunizona. 

This includes the following highways...
 Route 181 between mile markers 39 and 49, and between mile markers
52 and 54.
 Route 191 between mile markers 25 and 50.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 3168 10966 3180 10993 3206 10980 3192 10947
TIME...MOT...LOC 2113Z 210DEG 6KT 3185 10974 

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

$$

AH

The office that day

Everything else NWS Tucson, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 22, 6:24 PM MST	Special Weather Statement	TWC	Cochise	36 min
Aug 23, 12:11 PM MST	Areal Flood Advisory	TWC	Cochise	3 hr
Aug 23, 12:42 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	3 hr
Aug 23, 1:12 PM MST	Special Weather Statement	TWC	Cochise	48 min
Aug 23, 1:26 PM MST	Special Weather Statement	TWC	Cochise	49 min
Aug 23, 1:28 PM MST	Areal Flood Advisory	TWC	Cochise	2 hr
Aug 23, 1:42 PM MST	Areal Flood Advisory	TWC	Cochise	3 hr
Aug 23, 1:50 PM MST	Severe Thunderstorm Warning	TWC	Cochise	40 min
Aug 23, 1:54 PM MST	Areal Flood Advisory	TWC	Cochise	3 hr
Aug 23, 2:09 PM MST	Excessive Heat Watch	TWC	Pima, Pinal	24 hr
Aug 23, 2:22 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	3 hr
Aug 23, 2:37 PM MST	Special Weather Statement	TWC	Cochise	38 min
Aug 23, 2:43 PM MST	Severe Thunderstorm Warning	TWC	Cochise	24 min
Aug 23, 3:00 PM MST	Special Weather Statement	TWC	Cochise	45 min
Aug 23, 3:32 PM MST	Areal Flood Advisory	TWC	Cochise	118 min
Aug 23, 4:03 PM MST	Special Weather Statement	TWC	Graham	42 min
Aug 23, 4:37 PM MST	Severe Thunderstorm Warning	TWC	Graham, Greenlee	38 min
Aug 23, 4:59 PM MST	Flash Flood Warning Considerable damage threat	TWC	Graham	3 hr

Nearby

Special Weather Statements in Arizona, 2021 Every special weather statement 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.