Alert archive / Arizona / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 83, NWS Phoenix, AZ

August 16, 2021Gila County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 16, 2021, 6:14 PM MST for Gila County, Arizona. It was in force for 46 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 16, 2021, 6:14 PM MST (01:14 UTC)
Expired
Aug 16, 2021, 7:00 PM MST
In force
46 min
Issued by
NWS Phoenix, AZ
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Gila County, AZ

The radar

The Phoenix radar (KIWA), 108 km from the middle of the area, began a volume at 01:17 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.

IssuedProductOfficeLasted
Aug 16, 3:54 PM MSTSevere Thunderstorm WatchSPC10 hr

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 1.2 hours before the alert went out and 133 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 00:00Z on 2021-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1827 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 00:00Z on 2021-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -68 square meters per square second.1939Sfc1 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
1827 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
1863 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-68 m²/s²
0-3 km storm-relative helicity
-39 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

769 
WUUS55 KPSR 170114
SVRPSR
AZC007-170200-
/O.NEW.KPSR.SV.W.0083.210817T0114Z-210817T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Phoenix AZ
614 PM MST Mon Aug 16 2021

The National Weather Service in Phoenix has issued a

* Severe Thunderstorm Warning for...
  Gila County in east central Arizona...

* Until 700 PM MST.

* At 613 PM MST, a severe thunderstorm was located near San Carlos,
  or 21 miles east of Globe, moving southeast at 10 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...
  Globe, San Carlos, Cutter and Central Heights-Midland City. 

This includes the following highways...
US Highway 60 between mile markers 250 and 255.
AZ Route 70 between mile markers 253 and 271.
AZ Route 77 between mile markers 163 and 170.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3344 11032 3340 11035 3338 11045 3329 11046
      3320 11040 3320 11046 3318 11047 3319 11050
      3315 11056 3328 11081 3338 11084 3342 11078
      3349 11041
TIME...MOT...LOC 0113Z 309DEG 11KT 3338 11042 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

AD
3 follow-up statements
348 
WWUS55 KPSR 170122
SVSPSR

Severe Weather Statement
National Weather Service Phoenix AZ
622 PM MST Mon Aug 16 2021

AZC007-170200-
/O.CON.KPSR.SV.W.0083.000000T0000Z-210817T0200Z/
Gila AZ-
622 PM MST Mon Aug 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM MST
FOR GILA COUNTY...

At 622 PM MST, a severe thunderstorm was located near San Carlos, or
19 miles east of Globe, moving southeast 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...
Globe, San Carlos, Cutter and Central Heights-Midland City. 

This includes the following highways...
US Highway 60 between mile markers 251 and 253.
AZ Route 70 between mile markers 253 and 271.
AZ Route 77 between mile markers 163 and 170.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3337 11049 3336 11045 3329 11046 3320 11040
      3320 11046 3318 11047 3319 11050 3315 11056
      3328 11081 3338 11084 3341 11077 3338 11059
TIME...MOT...LOC 0122Z 309DEG 11KT 3340 11045 

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

AD
216 
WWUS55 KPSR 170131
SVSPSR

Severe Weather Statement
National Weather Service Phoenix AZ
631 PM MST Mon Aug 16 2021

AZC007-170200-
/O.CON.KPSR.SV.W.0083.000000T0000Z-210817T0200Z/
Gila AZ-
631 PM MST Mon Aug 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM MST
FOR GILA COUNTY...

At 631 PM MST, a severe thunderstorm was located near San Carlos, or
19 miles east of Globe, moving southeast 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.

This severe thunderstorm will remain over mainly rural areas of Gila
County.
This includes the following highways...
AZ Route 70 between mile markers 265 and 271.
AZ Route 77 between mile markers 163 and 165.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3330 11046 3320 11040 3320 11046 3318 11047
      3319 11050 3315 11056 3327 11079 3330 11075
      3333 11062 3333 11055
TIME...MOT...LOC 0131Z 309DEG 11KT 3340 11045 

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

AD
362 
WWUS55 KPSR 170157
SVSPSR

Severe Weather Statement
National Weather Service Phoenix AZ
657 PM MST Mon Aug 16 2021

AZC007-170207-
/O.EXP.KPSR.SV.W.0083.000000T0000Z-210817T0200Z/
Gila AZ-
657 PM MST Mon Aug 16 2021

...THE SEVERE THUNDERSTORM WARNING FOR GILA COUNTY WILL EXPIRE AT 700
PM MST...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

A Severe Thunderstorm Watch remains in effect until midnight MST for
southeastern and east central Arizona.

LAT...LON 3330 11046 3320 11040 3320 11046 3318 11047
      3319 11050 3315 11056 3327 11079 3330 11075
      3333 11062 3333 11055
TIME...MOT...LOC 0157Z 309DEG 11KT 3335 11038 

$$

AD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 5:15 PM MSTSpecial Weather StatementPSRGila45 min
Aug 16, 5:46 PM MSTSpecial Weather StatementPSR44 min
Aug 16, 6:07 PM MSTSpecial Weather StatementPSRGila38 min
Aug 16, 6:37 PM MSTSpecial Weather StatementPSRPinal53 min
Aug 16, 6:55 PM MSTFlash Flood Warning Considerable damage threatPSRGila6 hr
Aug 16, 8:24 PM MSTSpecial Weather StatementPSR51 min
Aug 16, 8:41 PM MSTFlash Flood Warning Considerable damage threatPSRMaricopa5 hr
Aug 16, 8:53 PM MSTSpecial Weather StatementPSRGila52 min
Aug 16, 9:08 PM MSTSpecial Weather StatementPSRGila52 min
Aug 16, 9:22 PM MSTSevere Thunderstorm WarningPSRGila, Maricopa, Pinal38 min
Aug 16, 9:41 PM MSTSevere Thunderstorm WarningPSRGila, Maricopa, Pinal49 min
Aug 16, 9:49 PM MSTSevere Thunderstorm Warning Considerable damage threatPSRGila, Maricopa41 min
Aug 16, 10:01 PM MSTFlash Flood Warning Considerable damage threatPSRGila4 hr
Aug 16, 10:01 PM MSTSpecial Weather StatementPSR44 min
Aug 16, 10:05 PM MSTFlash Flood Warning Considerable damage threatPSRGila4 hr
Aug 16, 10:14 PM MSTSevere Thunderstorm Warning Considerable damage threatPSRGila, Maricopa, Pinal46 min
Aug 16, 10:22 PM MSTFlash Flood Warning Considerable damage threatPSRGila10 hr
Aug 16, 10:28 PM MSTFlash Flood Warning Considerable damage threatPSRGila, Maricopa, Pinal10 hr
Aug 16, 10:36 PM MSTFlash Flood Warning Considerable damage threatPSRGila, Maricopa10 hr
Aug 16, 10:38 PM MSTDust Storm AdvisoryPSRMaricopa, Pinal67 min
Aug 16, 10:48 PM MSTFlash Flood Warning Considerable damage threatPSRMaricopa, Pinal9 hr
Aug 16, 10:54 PM MSTSevere Thunderstorm Warning Destructive damage threatPSRMaricopa, Pinal51 min
Aug 16, 10:58 PM MSTFlash Flood Warning Considerable damage threatPSRMaricopa7 hr
Aug 16, 11:04 PM MSTDust Storm WarningPSRMaricopa, Pinal56 min
Aug 16, 11:07 PM MSTFlash Flood Warning Considerable damage threatPSRMaricopa, Pinal7 hr
Aug 16, 11:16 PM MSTFlash Flood Warning Considerable damage threatPSRMaricopa7 hr
Aug 16, 11:26 PM MSTFlash Flood Warning Considerable damage threatPSRMaricopa, Pinal8 hr
Aug 16, 11:31 PM MSTSevere Thunderstorm WarningPSRMaricopa44 min
Aug 16, 11:41 PM MSTSevere Thunderstorm Warning Considerable damage threatPSRMaricopa, Pinal49 min
Aug 16, 11:47 PM MSTDust Storm WarningPSRMaricopa58 min
Aug 16, 11:50 PM MSTSpecial Weather StatementPSR40 min
Aug 16, 11:52 PM MSTSevere Thunderstorm WarningPSRMaricopa38 min
Aug 16, 11:56 PM MSTFlash Flood Warning Considerable damage threatPSRPinal7 hr
Aug 16, 11:59 PM MSTFlash Flood Warning Considerable damage threatPSRMaricopa6 hr
Aug 17, 12:01 AM MSTDust Storm WarningPSRMaricopa, Pinal59 min
Aug 17, 12:09 AM MSTFlash Flood Warning Considerable damage threatPSRMaricopa, Pinal8 hr
Aug 17, 12:32 AM MSTSpecial Weather StatementPSR43 min
Aug 17, 12:36 AM MSTSpecial Weather StatementPSRMaricopa24 min
Aug 17, 4:05 AM MSTAreal Flood AdvisoryPSRMaricopa4 hr
Aug 17, 4:26 AM MSTFlash Flood Warning Considerable damage threatPSRMaricopa6 hr
Aug 17, 5:29 AM MSTSpecial Weather StatementPSRMaricopa76 min
Aug 17, 5:35 AM MSTFlash Flood Warning Considerable damage threatPSRMaricopa6 hr
Aug 17, 6:26 AM MSTFlash Flood Warning Considerable damage threatPSRGila, Pinal5 hr
Aug 17, 8:42 AM MSTAreal Flood WarningPSRGila5 days
Aug 17, 4:46 PM MSTSpecial Weather StatementPSR44 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.