Alert archive / Arizona / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 9, NWS Las Vegas, NV

July 18, 2026Mohave County, Arizona

NWS Las Vegas, NV issued this severe thunderstorm warning at Jul 18, 2026, 5:01 PM MST for Mohave 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 18, 2026, 5:01 PM MST (00:01 UTC)
Expired: Jul 18, 2026, 5:45 PM MST
In force: 44 min
Issued by: NWS Las Vegas, NV
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Mohave County, AZ

The radar

The Las Vegas radar (KESX), 131 km from the middle of the area, began a volume at 00:00 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 0.0 hours before the alert went out and 154 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: 138 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1075 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.6

Open this sounding in Storm Lab

The text

As transmitted.

728 
WUUS55 KVEF 190001
SVRVEF
AZC015-190045-
/O.NEW.KVEF.SV.W.0009.260719T0001Z-260719T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Las Vegas NV
501 PM MST Sat Jul 18 2026

The National Weather Service in Las Vegas has issued a

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

* Until 545 PM MST.

* At 500 PM MST, a severe thunderstorm was located 10 miles south of
  Diamond Creek Campground, or 45 miles northeast of Kingman, moving
  south 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 and trees.

* Locations impacted include...
  Peach Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail, damaging wind, and continuous cloud to ground lightning
are occurring with this storm. Move indoors immediately. Lightning is
one of nature's leading killers. Remember, if you can hear thunder,
you are close enough to be struck by lightning.

&&

LAT...LON 3540 11358 3568 11351 3567 11333 3539 11333
TIME...MOT...LOC 0000Z 004DEG 16KT 3561 11338 

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

$$

ASG

2 follow-up statements

306 
WWUS55 KVEF 190024
SVSVEF

Severe Weather Statement
National Weather Service Las Vegas NV
524 PM MST Sat Jul 18 2026

AZC015-190045-
/O.CON.KVEF.SV.W.0009.000000T0000Z-260719T0045Z/
Mohave AZ-
524 PM MST Sat Jul 18 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM MST
FOR CENTRAL MOHAVE COUNTY...

At 523 PM MST, a severe thunderstorm was located just north of Peach 
Springs, or 40 miles northeast of Kingman, moving south 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 and trees.

Locations impacted include...
Peach Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3540 11358 3568 11351 3567 11333 3539 11333
TIME...MOT...LOC 0023Z 004DEG 16KT 3551 11339 

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

$$

ASG

647 
WWUS55 KVEF 190037
SVSVEF

Severe Weather Statement
National Weather Service Las Vegas NV
537 PM MST Sat Jul 18 2026

AZC015-190047-
/O.EXP.KVEF.SV.W.0009.000000T0000Z-260719T0045Z/
Mohave AZ-
537 PM MST Sat Jul 18 2026

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MOHAVE COUNTY WILL
EXPIRE AT 545 PM MST...

The storm which prompted the warning has weakened, and no longer
poses an immediate threat to life or property. Therefore, the 
warning will be allowed to expire.  However, heavy rain is still 
likely with this thunderstorm.

&&

LAT...LON 3540 11358 3568 11351 3567 11333 3539 11333
TIME...MOT...LOC 0037Z 004DEG 16KT 3548 11339 

$$

ASG

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Las Vegas, NV wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 18, 4:30 PM MST, 31 minutes earlier. Its key messages:

* Monsoonal moisture remains in place over the region through next week, maintaining daily thunderstorm chances. * Seasonably hot temperatures continue, though little relief will be felt overnight as moisture and cloud cover result in mild low temperatures.

Area forecast discussion, Jul 18, 4:30 PM MST, 31 minutes before

Area Forecast Discussion
National Weather Service Las Vegas NV
430 PM PDT Sat Jul 18 2026

.KEY MESSAGES...

* Monsoonal moisture remains in place over the region through next
  week, maintaining daily thunderstorm chances.

* Seasonably hot temperatures continue, though little relief will
  be felt overnight as moisture and cloud cover result in mild low
  temperatures.

&&

.DISCUSSION...

Early this afternoon, isolated convection has already started
forming over the higher terrain of southeastern Nevada and
northwestern Arizona, with additional development expected through
this afternoon and into this evening. Overall, coverage is
expected to be less than what was observed on Friday afternoon and
evening, through locally heavy rain and flooding remain concerns,
especially for any locations that received appreciable rainfall
previous days. Instability is expected to generally range from 500
to 1000 J/kg, maximized across southern Mohave County. However, 0
to 6 km shear remains weak, around 10 to 20 KT, which will result
in slow storm motion and additional convective development away
from the higher terrain largely dependent on outflow boundary
interactions. Additionally, while DCAPE has decreased
substantially over the last week due to the influx of monsoonal
moisture, model soundings still indicate locations across Lincoln,
Clark, and Mohave Counties with around 500 to 1000 J/kg of DCAPE,
so gusty downburst winds also remain a threat with the stronger
storms that develop. Convective activity will begin waning after
sunset, though storms over southwestern Utah this evening could
send outflow boundaries southwestward across northern Mohave,
southern Lincoln, and into Clark County/the Las Vegas Valley
tonight. A similar set-up is expected on Sunday, though showers
may develop during late morning, with a westward expansion of
thunderstorm chances during the afternoon and evening.
Thunderstorms remain in the forecast each day through the upcoming
week, especially across northern and eastern portions of the
forecast area as precipitable water values remain 2 to 3 standard
deviations above normal. Ensembles indicate a weak inverted
trough/easterly wave that will translate westward midweek,
potentially resulting in an uptick in thunderstorm activity
Wednesday into Thursday. Thereafter, there is quite a bit more
uncertainty in the evolution of the upper pattern as a trough
takes shape off of the Pacific Northwest, which could, in turn,
displace the ridge over the Four Corners Region, so stay tuned.

In addition to daily thunderstorm chances, each day through next
week will also remain hot and muggy. While afternoon high
temperatures will be near seasonal normals, the abundant moisture
and lingering overnight cloud cover due to afternoon and evening
thunderstorms will maintain above normal low temperatures. Thus,
little relief will be felt overnight, and we will continue to
observe widespread Minor and Moderate (Level 1 and 2) Heat Risk
each day. Those who will be outdoors will need to ensure they stay
hydrated and take breaks in the air conditioning whenever
possible.

&&

.AVIATION...For Harry Reid...For the 00Z Forecast
Package...Convection chances and coverage this afternoon and
evening will be limited, with any thunderstorms remaining mainly
over the higher terrain surrounding the valley. Some guidance
continues to show the potential for a northeast push from storms
over southwestern Utah around 04/05UTC. However, chances of this
occurring are around 20%. Regardless of whether the northeast push
occurs, typical diurnal southwesterly winds are expected
overnight. Away from any convection that does develop over
southern Nevada, VFR conditions will prevail with SCT to BKN
clouds and bases remaining AOA 12kft AGL into Sunday. Convective
coverage over southern Nevada is expected to increase on Sunday,
with thunderstorms returning to the higher terrain surrounding the
valley.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 00Z Forecast Package...Winds will generally
remain light, 10 knots or less, and will favor a southerly to
westerly direction through the rest of the afternoon. One
exception is the northern Owens Valley, including KBIH, where
breezy southeasterly winds will continue into the evening hours.
The other exception will be the western Mojave Desert, including
KDAG, where westerly winds will increase around sunset. Convective
chances will be limited to the higher terrain in Clark, Lincoln,
and Mohave counties for the rest of the afternoon and evening. An
isolated storm also cannot be ruled out over the eastern Sierra
slopes in northern Inyo County. Erratic gusty winds, low CIGS,
heavy rain, and lightning are expected to accompany any storms
that develop. Any convection that does develop will wane after
sunset and light winds favoring typical overnight patterns should
prevail tonight. Away from convection, VFR conditions will prevail
with SCT clouds and bases remaining AOA 10kft AGL into Sunday.
Convective coverage over southern Nevada and northwest Arizona is
expected to increase on Sunday.

&&

.SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report
any significant weather or impacts according to standard operating
procedures.

&&

DISCUSSION...Phillipson
AVIATION...Stessman

For more forecast information...see us on our webpage:
https://weather.gov/lasvegas or follow us on Facebook and Twitter

In the hours before

Local storm report, Jul 18, 2:57 PM MST, 2 hours 4 minutes before

Preliminary Local Storm Report
National Weather Service Las Vegas NV
257 PM PDT Sat Jul 18 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0148 PM     Flash Flood      3 N Hualapai Peak       35.11N 113.90W
07/18/2026                   Mohave             AZ   Park/Forest Srvc

            Video shows water flowing over the roadway
            with rocks and debris covering the road.

&&

MS

Local storm report, Jul 18, 3:03 PM MST, 1 hour 58 minutes before

Preliminary Local Storm Report
National Weather Service Las Vegas NV
303 PM PDT Sat Jul 18 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0521 PM     Flash Flood      Kingman                 35.18N 114.05W
07/17/2026                   Mohave             AZ   Public

            Video shows water flowing under the wash
            that runs under Old Trails Road. Water is
            backing up into 1st Ave.

&&

MS

Local storm report, Jul 18, 3:43 PM MST, 1 hour 18 minutes before

Preliminary Local Storm Report
National Weather Service Las Vegas NV
343 PM PDT Sat Jul 18 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0800 PM     Flood            3 SSE Willow Valley     34.87N 114.58W
07/17/2026                   Mohave             AZ   Public

            Photo shows backyard inundated with standing
            water.

&&

MS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 5:29 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Jul 18, 5:36 PM MST	Areal Flood Advisory	VEF	Mohave	3 hr
Jul 18, 7:00 PM MST	Areal Flood Warning	VEF	Mohave	13 min
Jul 18, 7:13 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Jul 19, 1:18 PM MST	Areal Flood Advisory	VEF	Mohave	3 hr

Nearby

Severe Thunderstorm Warnings in Arizona, 2026 Every severe thunderstorm warning in 2026

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.