Alert archive / Arizona / Tornado Warnings in 2020

Tornado Warning 1, NWS Las Vegas, NV

July 24, 2020Mohave County, Arizona

NWS Las Vegas, NV issued this tornado warning at Jul 24, 2020, 10:56 AM MST for Mohave County, Arizona. It was in force for 34 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 24, 2020, 10:56 AM MST (17:56 UTC)
Expired: Jul 24, 2020, 11:30 AM MST
In force: 34 min
Issued by: NWS Las Vegas, NV
Area: Storm-based polygon
Tornado: Observed
Hail: 0.75 in

County Mohave County, AZ

The radar

The Las Vegas radar (KESX), 111 km from the middle of the area, began a volume at 17:57 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, 5.9 hours before the alert went out and 182 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: 75 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 1214 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

425 
WFUS55 KVEF 241756
TORVEF
AZC015-241830-
/O.NEW.KVEF.TO.W.0001.200724T1756Z-200724T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Las Vegas NV
1056 AM MST Fri Jul 24 2020

The National Weather Service in Las Vegas has issued a

* Tornado Warning for...
  Southern Mohave County in northwestern Arizona...

* Until 1130 AM MST.

* At 1055 AM MST, a confirmed tornado was located near DW Ranch 
  Road, or 10 miles east of Kingman, moving north-northeast at 10 
  mph.

  HAZARD...Damaging tornado.

  SOURCE...Emergency Management confirmed tornado.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic thunderstorm will remain over mainly rural areas of
  southern Mohave County.

This includes Interstate 40 in Arizona between mile markers 59 and
67.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 3516 11378 3520 11393 3540 11388 3533 11365
TIME...MOT...LOC 1755Z 195DEG 5KT 3524 11386 

TORNADO...OBSERVED
HAIL...<.75IN

$$

Boothe

1 follow-up statement

500 
WWUS55 KVEF 241829
SVSVEF

Severe Weather Statement
National Weather Service Las Vegas NV
1129 AM MST Fri Jul 24 2020

AZC015-241838-
/O.EXP.KVEF.TO.W.0001.000000T0000Z-200724T1830Z/
Mohave AZ-
1129 AM MST Fri Jul 24 2020

...THE TORNADO WARNING FOR SOUTHERN MOHAVE COUNTY WILL EXPIRE AT 1130
AM MST...
                
The storm which prompted the warning has weakened and no longer 
appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.  However heavy rain
is still possible with this thunderstorm.

LAT...LON 3516 11378 3520 11393 3540 11388 3533 11365
TIME...MOT...LOC 1828Z 195DEG 5KT 3527 11385 

$$

Boothe

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 9:07 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Jul 24, 1:20 AM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Jul 24, 11:00 AM MST	Areal Flood Advisory	VEF	Mohave	52 min
Jul 24, 11:43 AM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	4 hr
Jul 24, 12:44 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	86 min
Jul 24, 1:16 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Jul 24, 1:30 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Jul 24, 4:06 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr

Nearby

Tornado Warnings in Arizona, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.