Alert archive / Arizona / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 10, NWS Tucson, AZ

July 2, 2021Graham County, Greenlee County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 2, 2021, 3:10 PM MST for Graham County, Greenlee County, Arizona. It was in force for 50 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, 3:10 PM MST (22:10 UTC)
Expired: Jul 2, 2021, 4:00 PM MST
In force: 50 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Graham County, AZ, Greenlee County, AZ

The radar

The Tucson radar (KEMX), 173 km from the middle of the area, began a volume at 22:14 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, 10.2 hours before the alert went out and 166 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: 385 J/kg
Mixed-layer CIN: -127 J/kg
Mixed-layer LCL: 1652 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

692 
WUUS55 KTWC 022210
SVRTWC
AZC009-011-022300-
/O.NEW.KTWC.SV.W.0010.210702T2210Z-210702T2300Z/

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

The National Weather Service in Tucson has issued a

* Severe Thunderstorm Warning for...
  Central Graham County in southeastern Arizona...
  West central Greenlee County in southeastern Arizona...

* Until 400 PM MST.

* At 309 PM MST, a severe thunderstorm was located 12 miles northwest
  of Morenci, moving west 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...
  Point-Of-Pines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3319 10940 3302 10944 3306 10992 3342 10979
TIME...MOT...LOC 2209Z 103DEG 18KT 3312 10952 

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

Carpenter

2 follow-up statements

083 
WWUS55 KTWC 022233
SVSTWC

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

AZC011-022242-
/O.CAN.KTWC.SV.W.0010.000000T0000Z-210702T2300Z/
Greenlee-
333 PM MST Fri Jul 2 2021

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL GREENLEE COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3318 10952 3303 10954 3306 10992 3335 10981
TIME...MOT...LOC 2232Z 103DEG 18KT 3315 10966 

$$

AZC009-022300-
/O.CON.KTWC.SV.W.0010.000000T0000Z-210702T2300Z/
Graham-
333 PM MST Fri Jul 2 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM MST
FOR CENTRAL GRAHAM COUNTY...

At 332 PM MST, a severe thunderstorm was located 21 miles north of 
Safford, moving west at 20 mph.

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

SOURCE...Radar indicated.

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

This severe thunderstorm will remain over mainly remote areas of
central Graham County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3318 10952 3303 10954 3306 10992 3335 10981
TIME...MOT...LOC 2232Z 103DEG 18KT 3315 10966 

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

Carpenter

670 
WWUS55 KTWC 022256
SVSTWC

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

AZC009-022306-
/O.EXP.KTWC.SV.W.0010.000000T0000Z-210702T2300Z/
Graham-
356 PM MST Fri Jul 2 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL GRAHAM COUNTY WILL
EXPIRE AT 400 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 heavy rain
is still possible with this thunderstorm.

LAT...LON 3318 10952 3303 10954 3306 10992 3335 10981
TIME...MOT...LOC 2256Z 103DEG 18KT 3318 10979 

$$

Carpenter

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 5:15 PM MST	Special Weather Statement	TWC	Cochise	45 min
Jul 2, 11:58 AM MST	Areal Flood Advisory	TWC	Cochise, Graham	3 hr
Jul 2, 12:46 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	3 hr
Jul 2, 1:34 PM MST	Special Weather Statement	TWC	Graham	26 min
Jul 2, 2:05 PM MST	Severe Thunderstorm Warning	TWC	Pinal	40 min
Jul 2, 2:27 PM MST	Special Weather Statement	TWC		33 min
Jul 2, 2:36 PM MST	Severe Thunderstorm Warning	TWC	Pinal	39 min
Jul 2, 2:48 PM MST	Severe Thunderstorm Warning	TWC	Pima	42 min
Jul 2, 2:53 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	3 hr
Jul 2, 3:01 PM MST	Severe Thunderstorm Warning	TWC	Pima, Pinal	44 min
Jul 2, 3:14 PM MST	Areal Flood Advisory	TWC	Pinal	3 hr
Jul 2, 3:24 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	3 hr
Jul 2, 3:25 PM MST	Dust Storm Warning	TWC	Pima, Pinal	95 min
Jul 2, 3:33 PM MST	Severe Thunderstorm Warning	TWC	Cochise	42 min
Jul 2, 3:35 PM MST	Severe Thunderstorm Warning	TWC	Pima, Pinal	40 min
Jul 2, 3:54 PM MST	Special Weather Statement	TWC	Santa Cruz	51 min
Jul 2, 3:55 PM MST	Special Weather Statement	TWC	Graham	65 min
Jul 2, 4:06 PM MST	Severe Thunderstorm Warning	TWC	Cochise	39 min
Jul 2, 4:09 PM MST	Special Weather Statement	TWC	Graham	51 min
Jul 2, 4:24 PM MST	Special Weather Statement	TWC	Santa Cruz	36 min
Jul 2, 4:34 PM MST	Special Weather Statement	TWC	Santa Cruz	26 min
Jul 2, 4:35 PM MST	Special Weather Statement	TWC	Cochise	40 min
Jul 2, 4:46 PM MST	Special Weather Statement	TWC	Santa Cruz	29 min
Jul 2, 4:51 PM MST	Special Weather Statement	TWC	Pinal	24 min
Jul 2, 4:56 PM MST	Areal Flood Advisory	TWC	Santa Cruz	3 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.