Alert archive / Arizona / Special Weather Statements in 2023

Special Weather Statement, NWS Tucson, AZ

August 9, 2023Cochise County, Arizona

NWS Tucson, AZ issued this special weather statement at Aug 9, 2023, 2:36 PM MST for Cochise County, Arizona. It was in force for 39 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 9, 2023, 2:36 PM MST (21:36 UTC)
Expired
Aug 9, 2023, 3:15 PM MST
In force
39 min
Issued by
NWS Tucson, AZ
Hail
0.00 in
Wind
40

County Cochise County, AZ

The radar

The Tucson radar (KEMX), 77 km from the middle of the area, began a volume at 21:39 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, 9.6 hours before the alert went out and 114 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-pSkew-T log-p diagram, Tuscon, AZ at 12:00Z on 2023-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 69 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 12:00Z on 2023-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
69 J/kg
Mixed-layer CIN
-371 J/kg
Mixed-layer LCL
2314 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

116 
WWUS85 KTWC 092136
SPSTWC

Special Weather Statement
National Weather Service Tucson AZ
236 PM MST Wed Aug 9 2023
 
AZZ507-508-513-092215-
Upper San Pedro River Valley including Sierra
Vista/Benson-Dragoon/Mule/Huachuca and Santa Rita Mountains including
Bisbee/Canelo Hills/Madera Canyon-Eastern Cochise County Below 5000
Feet including Douglas/Willcox-
236 PM MST Wed Aug 9 2023

...A strong thunderstorm will impact portions of south central
Cochise County through 315 PM MST...

At 236 PM MST, Doppler radar was tracking a strong thunderstorm 11
miles southeast of Tombstone, or 14 miles north of Bisbee, moving
northeast at 5 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

This storm will remain over mainly remote areas of south central
Cochise County.

This includes Route 191 near mile marker 26.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 3152 10986 3161 11003 3181 10993 3171 10968
TIME...MOT...LOC 2136Z 208DEG 5KT 3161 10991 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

$$

AWH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 6:41 PM MSTAreal Flood AdvisoryTWCPinal2 hr
Aug 9, 3:28 PM MSTAreal Flood AdvisoryTWCCochise2 hr

Nearby

Special Weather Statements in Arizona, 2023Every special weather statement in 2023

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.