Alert archive / Arizona / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 52, NWS Las Vegas, NV

August 10, 2021Mohave County, Arizona

NWS Las Vegas, NV issued this severe thunderstorm warning at Aug 10, 2021, 1:35 PM MST for Mohave County, Arizona. It was in force for 40 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 10, 2021, 1:35 PM MST (20:35 UTC)
Expired: Aug 10, 2021, 2:15 PM MST
In force: 40 min
Issued by: NWS Las Vegas, NV
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Mohave County, AZ

The radar

The Las Vegas radar (KESX), 119 km from the middle of the area, began a volume at 20:36 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

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 8.6 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: 609 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 962 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 118 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

606 
WUUS55 KVEF 102035
SVRVEF
AZC015-102115-
/O.NEW.KVEF.SV.W.0052.210810T2035Z-210810T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Las Vegas NV
135 PM MST Tue Aug 10 2021

The National Weather Service in Las Vegas has issued a

* Severe Thunderstorm Warning for...
  Central Mohave County in northwestern Arizona...

* Until 215 PM MST.

* At 130 PM MST, a severe thunderstorm was located 9 miles northeast
  of Valentine, or 32 miles northeast of Kingman, moving south at 20 
  mph. Travelers along Route 66 between Truxton and Valentine should 
  anticpate severe winds. 

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs and trees.

* Locations impacted include...
  Valentine and Peach Springs. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3557 11366 3555 11344 3526 11346 3534 11382
TIME...MOT...LOC 2030Z 004DEG 18KT 3549 11356 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

SC

2 follow-up statements

417 
WWUS55 KVEF 102053
SVSVEF

Severe Weather Statement
National Weather Service Las Vegas NV
153 PM MST Tue Aug 10 2021

AZC015-102115-
/O.CON.KVEF.SV.W.0052.000000T0000Z-210810T2115Z/
Mohave AZ-
153 PM MST Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM MST
FOR CENTRAL MOHAVE COUNTY...

At 152 PM MST, a severe thunderstorm was located 9 miles east of
Valentine, or 31 miles northeast of Kingman, moving south at 10 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs and trees.

Locations impacted include...
Valentine.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3551 11370 3546 11346 3526 11346 3534 11382
TIME...MOT...LOC 2052Z 007DEG 7KT 3540 11350 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

SC

980 
WWUS55 KVEF 102112
SVSVEF

Severe Weather Statement
National Weather Service Las Vegas NV
212 PM MST Tue Aug 10 2021

AZC015-102117-
/O.EXP.KVEF.SV.W.0052.000000T0000Z-210810T2115Z/
Mohave AZ-
212 PM MST Tue Aug 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MOHAVE COUNTY WILL
EXPIRE AT 215 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.

LAT...LON 3551 11370 3546 11346 3526 11346 3534 11382
TIME...MOT...LOC 2107Z 004DEG 18KT 3534 11351 

$$

SC

The office that day

Everything else NWS Las Vegas, NV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 10, 12:30 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Aug 10, 1:22 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	2 hr
Aug 10, 2:05 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Aug 10, 2:06 PM MST	Dust Storm Warning	VEF	Mohave	54 min
Aug 10, 2:13 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Aug 10, 2:50 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Aug 10, 3:25 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Aug 10, 3:51 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Aug 10, 4:59 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	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.