Alert archive / Arizona / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 15, NWS Tucson, AZ

July 2, 2021Cochise County, Pima County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 2, 2021, 6:16 PM MST for Cochise County, Pima County, Arizona. It was in force for 44 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: Jul 2, 2021, 6:16 PM MST (01:16 UTC)
Expired: Jul 2, 2021, 7:00 PM MST
In force: 44 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Cochise County, AZ, Pima County, AZ

The radar

The Tucson radar (KEMX), 19 km from the middle of the area, began a volume at 01:16 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 00:00Z, 1.3 hours before the alert went out and 41 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: 142 J/kg
Mixed-layer CIN: -202 J/kg
Mixed-layer LCL: 2019 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 34 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

687 
WUUS55 KTWC 030116
SVRTWC
AZC003-019-030200-
/O.NEW.KTWC.SV.W.0015.210703T0116Z-210703T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
616 PM MST Fri Jul 2 2021

The National Weather Service in Tucson has issued a

* Severe Thunderstorm Warning for...
  East central Pima County in southeastern Arizona...
  Western Cochise County in southeastern Arizona...

* Until 700 PM MST.

* At 616 PM MST, a severe thunderstorm was located 9 miles west of
  Benson, moving west at 5 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...
  Vail, Saguaro National Park East and Mescal. 

This includes the following highways...
 Interstate 10 between mile markers 283 and 299.
 Route 83 between mile markers 51 and 57.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3208 11037 3190 11040 3189 11070 3216 11066
TIME...MOT...LOC 0116Z 097DEG 6KT 3200 11047 

HAIL...1.00IN
WIND...60MPH
 
$$

Carpenter

2 follow-up statements

923 
WWUS55 KTWC 030144
SVSTWC

Severe Weather Statement
National Weather Service Tucson AZ
644 PM MST Fri Jul 2 2021

AZC003-019-030200-
/O.CON.KTWC.SV.W.0015.000000T0000Z-210703T0200Z/
Pima-Cochise-
644 PM MST Fri Jul 2 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM MST
FOR EAST CENTRAL PIMA AND WESTERN COCHISE COUNTIES...

At 643 PM MST, a severe thunderstorm was located 9 miles east of
Vail, moving west at 5 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Vail and Saguaro National Park East. 

This includes the following highways...
 Interstate 10 between mile markers 283 and 297.
 Route 83 between mile markers 51 and 57.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3208 11043 3190 11044 3189 11070 3216 11066
TIME...MOT...LOC 0143Z 097DEG 6KT 3201 11052 

HAIL...0.75IN
WIND...60MPH
 
$$

Carpenter

927 
WWUS55 KTWC 030200
SVSTWC

Severe Weather Statement
National Weather Service Tucson AZ
700 PM MST Fri Jul 2 2021

AZC003-019-030210-
/O.EXP.KTWC.SV.W.0015.000000T0000Z-210703T0200Z/
Pima-Cochise-
700 PM MST Fri Jul 2 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL PIMA AND WESTERN
COCHISE COUNTIES HAS EXPIRED...
                
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 has been allowed to expire.  However heavy
rain is still possible with this thunderstorm.

LAT...LON 3208 11043 3190 11044 3189 11070 3216 11066
TIME...MOT...LOC 0200Z 097DEG 6KT 3201 11054 

$$

Carpenter

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 5:17 PM MST	Special Weather Statement	TWC	Pinal	43 min
Jul 2, 5:31 PM MST	Special Weather Statement	TWC		44 min
Jul 2, 5:35 PM MST	Severe Thunderstorm Warning	TWC	Cochise, Pima	40 min
Jul 2, 6:14 PM MST	Special Weather Statement	TWC		46 min
Jul 2, 6:16 PM MST	Special Weather Statement	TWC	Pima	29 min
Jul 2, 7:13 PM MST	Severe Thunderstorm Warning	TWC	Pima	47 min
Jul 2, 7:34 PM MST	Areal Flood Advisory	TWC	Pima, Pinal	116 min
Jul 3, 11:17 AM MST	Areal Flood Advisory	TWC	Cochise, Santa Cruz	3 hr
Jul 3, 11:21 AM MST	Severe Thunderstorm Warning	TWC	Santa Cruz	39 min
Jul 3, 11:51 AM MST	Special Weather Statement	TWC	Pima	54 min
Jul 3, 11:58 AM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise, Santa Cruz	3 hr
Jul 3, 12:09 PM MST	Areal Flood Advisory	TWC	Pima, Santa Cruz	111 min
Jul 3, 12:17 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima, Santa Cruz	3 hr
Jul 3, 12:23 PM MST	Severe Thunderstorm Warning	TWC	Cochise, Santa Cruz	35 min
Jul 3, 12:28 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise, Pima, Santa Cruz	3 hr
Jul 3, 1:07 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	3 hr
Jul 3, 1:15 PM MST	Special Weather Statement	TWC	Pima	45 min
Jul 3, 1:20 PM MST	Special Weather Statement	TWC	Pima	40 min
Jul 3, 1:50 PM MST	Severe Thunderstorm Warning	TWC	Cochise, Pima	40 min
Jul 3, 2:14 PM MST	Special Weather Statement	TWC		31 min
Jul 3, 2:56 PM MST	Special Weather Statement	TWC	Pima	34 min
Jul 3, 3:31 PM MST	Special Weather Statement	TWC	Pinal	44 min
Jul 3, 3:44 PM MST	Areal Flood Advisory	TWC	Pima	2 hr

Nearby

Severe Thunderstorm Warnings in Arizona, 2021 Every 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.