Alert archive / Nevada / Flash Flood Warnings in 2026

Flash Flood Warning 30, NWS Las Vegas, NV

August 14, 2026Clark County, Nevada

NWS Las Vegas, NV issued this flash flood warning at Aug 14, 2026, 12:45 PM PDT for Clark County, Nevada. It was in force for 3 hr. 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 14, 2026, 12:45 PM PDT (19:45 UTC)
Expired
Aug 14, 2026, 3:45 PM PDT
In force
3 hr
Issued by
NWS Las Vegas, NV
Area
Storm-based polygon
Damage threat
Considerable
Flood severity
None

County Clark County, NV

The radar

The Las Vegas radar (KESX), 122 km from the middle of the area, began a volume at 19:44 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 flash flood 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

Las Vegas, NV (KVEF), launched 12:00Z, 7.8 hours before the alert went out and 65 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, Las Vegas, NV at 12:00Z on 2026-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 233 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 12:00Z on 2026-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.1939587897Sfc1 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
233 J/kg
Mixed-layer CIN
-123 J/kg
Mixed-layer LCL
2555 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

724 
WGUS55 KVEF 141945
FFWVEF
NVC003-142245-
/O.NEW.KVEF.FF.W.0030.260814T1945Z-260814T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Las Vegas NV
1245 PM PDT Fri Aug 14 2026

The National Weather Service in Las Vegas has issued a

* Flash Flood Warning for...
  North Central Clark County in southern Nevada...

* Until 345 PM PDT.

* At 1245 PM PDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Between 1 and 2 inches of rain
  have fallen. Additional rainfall amounts of 1 to 3 inches are
  possible in the warned area. Flash flooding is ongoing or expected
  to begin shortly.

  HAZARD...Life threatening flash flooding. Thunderstorms producing
           flash flooding.

  SOURCE...Radar indicated.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Coyote Springs and Sr 168 Mile Marker 21.

This includes the following streams and drainages...
  Wildcat Wash and Pahranagat Wash.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3685 11490 3677 11485 3669 11514 3673 11521
      3685 11516

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

CM
2 follow-up statements
392 
WGUS75 KVEF 142147
FFSVEF

Flash Flood Statement
National Weather Service Las Vegas NV
247 PM PDT Fri Aug 14 2026

NVC003-142245-
/O.CON.KVEF.FF.W.0030.000000T0000Z-260814T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clark NV-
247 PM PDT Fri Aug 14 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM PDT THIS
AFTERNOON FOR NORTH CENTRAL CLARK COUNTY...

At 247 PM PDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2 and 3 inches of rain have
fallen. Additional rainfall amounts up to 1 inch are possible in the
warned area. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Life threatening flash flooding. Thunderstorms producing
         flash flooding.

SOURCE...Radar indicated.

IMPACT...Life threatening flash flooding of creeks and streams, urban
         areas, highways, streets and underpasses.

Some locations that will experience flash flooding include...
  Coyote Springs and Sr 168 Mile Marker 21.

This includes the following streams and drainages...
  Wildcat Wash and Pahranagat Wash.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3685 11490 3677 11485 3669 11514 3673 11521
      3685 11516

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

CM
535 
WGUS75 KVEF 142235
FFSVEF

Flash Flood Statement
National Weather Service Las Vegas NV
335 PM PDT Fri Aug 14 2026

NVC003-142245-
/O.EXP.KVEF.FF.W.0030.000000T0000Z-260814T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clark NV-
335 PM PDT Fri Aug 14 2026

...FLASH FLOOD WARNING WILL EXPIRE AT 345 PM PDT THIS AFTERNOON FOR
NORTH CENTRAL CLARK COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.

&&

LAT...LON 3685 11490 3677 11485 3669 11514 3673 11521
      3685 11516

$$

CM

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Aug 14, 10:38 AM PDT, 2 hours 7 minutes earlier. Its key messages:

  • * Limited shower activity lasts through much of the morning with another batch of isolated to scattered thunderstorms expected this afternoon. Storm chances reduce into the evening, then exit by the late night. FLash Flood Watches are in affect for Northern Mohave County and most of Lincoln County. * Mostly dry conditions are expected over the weekend and into the next work week. * The weekend starts off another steady warming trend.
Area forecast discussion, Aug 14, 10:38 AM PDT, 2 hours 7 minutes before
Area Forecast Discussion
National Weather Service Las Vegas NV
1038 AM PDT Fri Aug 14 2026

.KEY MESSAGES...

* Limited shower activity lasts through much of the morning with
  another batch of isolated to scattered thunderstorms expected
  this afternoon. Storm chances reduce into the evening, then exit
  by the late night. FLash Flood Watches are in affect for
  Northern Mohave County and most of Lincoln County.

* Mostly dry conditions are expected over the weekend and into
  the next work week.

* The weekend starts off another steady warming trend.

&&

.DISCUSSION...We're continuing to see very light returns on the
radar around the southern portions of the CWA, while Lincoln Co
still has some passing storms that will weaken into the late
night. Non-impactful shower activity looks to linger through the
morning, with better chances for convection arriving into the
afternoon. Northern Mohave County AZ will see the better chances
for storms as the monsoonal flow will be slightly more focused on
that side of the state line. Storm chances do look to spread west
into the mid afternoon offering more widespread storm chances.
Even though the moisture feed will be limited compared to previous
days, localized flooding will still be a concern along with strong
gusts. lightning, and maybe some hail. Shorter-term higher
resolution models are showing a possible conveyer belt of storms
moving through northern Mohave Co AZ in the early afternoon and
again in the early evening. Portions of Lincoln Co will also have
the potential for training storms. As such, a Flash Flood watch
remains in effect for northern Mohave County and most of Lincoln
County through 8 PM this evening.

The upper level pattern will shift into Friday night with a ridge
of high pressure tilting into the region. This will inhibit storm
chances over the weekend, with the exception of some slight
chances for isolated storms on some of the higher peaks. The high
pressure will continue to build into the work week, keeping the
forecast dry. Longer term models hint at the high pressure
beginning to push east by the next weekend, but that could be
delayed further beyond the forecast period.

The building high pressure will also kick off a warm trend over
the weekend with temperatures slowly rising back into the 100s and
110s by the middle of the next work week.

&&

.AVIATION...For Harry Reid...For the 18Z Forecast Package...
Light E to SE winds continue over the next few hours, increasing in
strength as afternoon mixing kicks in. Another round of convection
is expected across southern Nevada, with convective initiation
around the Valley as early as 19-20z expected. The best chance for
direct impacts in the terminal area will be 20Z to 23Z, with the
likely impacts being sudden gusty winds, heavy rainfall reducing
visibility to under 5SM, and CIGs briefly decreasing to below 8kft
AGL. Added a tempo group from 19-23z to account for convection in
the vicinity and erratic wind speeds and directions. Hi-res
guidance is hinting as a northeast wind push from dying convection
around or after 00z, will watch how storms evolve today and update
the forecast as needed, but for now have added NE winds beginning at
00z. Light and variable winds will return overnight. Away from areas
of convection, VFR conditions will prevail with SCT to BKN clouds
and bases remaining at or above 10kft AGL. Temperatures are expected
to remain below 100F once again today and remain below 100F through
the weekend.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 18Z Forecast Package...Thunderstorms are
expected to redevelop this afternoon and evening across southern
Nevada and northern Mohave County. Any storms could produce sudden
gusty winds, lightning, heavy rain reducing visibilities to below
5SM, and CIGs decreasing to below 8kft AGL. Added a tempo group from
23z-03z at both KEED and KIFP to account for convection in the
vicinity during that timeframe with erratic wind directions and
speeds expected. Hi-res guidance is in agreement that northerly flow
may set up within the Colorado River Valley tonight as storms die
and send outflow boundaries from the north, so have kept that in the
respective TAFs. Away from convective influences, south to southwest
winds of 10 to 15 knots with gusts to around 20 knots will develop.
Normal diurnal wind patterns expected further west at both KDAG and
KBIH with cigs remaining mainly clear. Conditions will improve
across the region overnight, with both convection and winds
diminishing.

&&

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

&&

DISCUSSION...Murdock
AVIATION...Moore

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

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 5:14 PM PDTAreal Flood AdvisoryVEFClark3 hr
Aug 14, 12:17 PM PDTAreal Flood AdvisoryVEFLincoln3 hr
Aug 14, 12:23 PM PDTSevere Thunderstorm WarningVEFClark, Lincoln52 min
Aug 14, 12:55 PM PDTFlash Flood Warning Considerable damage threatVEFLincoln3 hr
Aug 14, 1:11 PM PDTSevere Thunderstorm WarningVEFClark, Lincoln49 min
Aug 14, 1:17 PM PDTSevere Thunderstorm WarningVEFClark43 min
Aug 14, 1:52 PM PDTAreal Flood AdvisoryVEFClark3 hr
Aug 14, 1:59 PM PDTSevere Thunderstorm WarningVEFClark46 min
Aug 14, 2:39 PM PDTSevere Thunderstorm WarningVEFClark51 min
Aug 14, 3:09 PM PDTFlash Flood Warning Considerable damage threatVEFClark7 hr
Aug 14, 3:29 PM PDTAreal Flood WarningVEFLincoln3 hr
Aug 14, 3:50 PM PDTSevere Thunderstorm WarningVEFClark40 min
Aug 14, 4:39 PM PDTAreal Flood AdvisoryVEFClark, Lincoln3 hr

Nearby

Flash Flood Warnings in Nevada, 2026Every flash flood 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.