Flash Flood Warning 96, NWS Las Vegas, NV

028 
WGUS75 KVEF 262200
FFSVEF

Flash Flood Statement
National Weather Service Las Vegas NV
300 PM PDT Fri Sep 26 2025

AZC015-NVC003-262315-
/O.CON.KVEF.FF.W.0096.000000T0000Z-250926T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mohave AZ-Clark NV-
300 PM PDT Fri Sep 26 2025 /300 PM MST Fri Sep 26 2025/

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 415 PM PDT /415 PM 
MST/ THIS AFTERNOON FOR SOUTHWESTERN MOHAVE AND SOUTH CENTRAL CLARK 
COUNTIES...

At 300 PM PDT /300 PM MST/, Doppler radar indicated thunderstorms 
producing heavy rain across the warned area. Between 1 and 1.25 
inches of rain have fallen. Flash flooding is ongoing or expected to 
begin shortly.

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

SOURCE...Radar.

IMPACT...Life-threatening flash flooding of low-water crossings,
         creeks, normally dry washes and roads.

Some locations that will experience flash flooding include...
  Bullhead City, Laughlin, Big Bend Rec Area, Mesquite Creek, Mohave 
  Valley and Oatman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3508 11474 3509 11474 3509 11475 3510 11475
      3512 11478 3521 11477 3521 11466 3520 11457
      3518 11457 3518 11443 3502 11429 3495 11463
      3498 11463 3499 11463 3500 11463 3507 11472

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

$$

JCS

310 
WGUS75 KVEF 262307
FFSVEF

Flash Flood Statement
National Weather Service Las Vegas NV
407 PM PDT Fri Sep 26 2025

AZC015-NVC003-262317-
/O.EXP.KVEF.FF.W.0096.000000T0000Z-250926T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mohave AZ-Clark NV-
407 PM PDT Fri Sep 26 2025 /407 PM MST Fri Sep 26 2025/

...FLASH FLOOD WARNING WILL EXPIRE AT 415 PM PDT /415 PM MST/ THIS 
AFTERNOON FOR SOUTHWESTERN MOHAVE AND SOUTH CENTRAL CLARK COUNTIES...

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

&&

LAT...LON 3508 11474 3509 11474 3509 11475 3510 11475
      3512 11478 3521 11477 3521 11466 3520 11457
      3518 11457 3518 11443 3502 11429 3495 11463
      3498 11463 3499 11463 3500 11463 3507 11472

$$

JCS

Area Forecast Discussion
National Weather Service Las Vegas NV
1238 PM PDT Fri Sep 26 2025

.KEY MESSAGES...

* Chances of showers and thunderstorms are in this weekend's
  forecast for southern Nevada, southeastern California, and
  northwestern Arizona.

* Moisture gradually scours out of the region through the work week,
  with a fall-like pattern bringing below-normal temperatures and
  breezy afternoons.

&&

.DISCUSSION...Through Thursday

A cutoff upper level low, currently centered north of Twentynine
Palms, will be the main driver of weather this weekend. Plentiful
moisture along with forcing from the low has already set off
thunderstorm activity early this morning over northwestern Arizona.
One storm produced a gust of 67 mph at 6 AM PDT in Nye County. This
activity should ramp up this afternoon with the introduction of
surface heating, particularly in regions along and south of
Interstate 15. However, this early morning activity may hinder
development later today due to leftover cloud cover and exhausted
atmospheric instability. CAMs have also backed off, pushing the more
active period into the early afternoon rather than late morning.
Heavy rainfall, gusty outflow winds, and small hail are all
possibilities with the strongest storms. The position of the low
becomes favorable for moisture advection on Saturday, sending PWATs
into the 0.75 to 1.50 inch range. The result will be more widespread
POPs and an increased concern for heavy rainfall and flash flooding.
The primary areas to watch for flash flooding are southern San
Bernardino and southern Mohave counties.

The upper level low will track east through Arizona on Sunday,
leading to a reduction in moisture and precipitation potential. The
greatest chances appear to be in northwestern Arizona and far
eastern Nevada, where forcing from the weakening low and lingering
moisture may kick off storms in the afternoon. Dry southwesterly
flow will take its place through the workweek as an upper level
trough moves into the Pacific Northwest. There is some uncertainty
in whether remnant moisture from Hurricane Narda will make it into
the flow, but if it does, POPs linger into Monday and Tuesday.
Outside of precipitation, lower heights aloft allow for below
average temperatures through most of the week.

&&

.AVIATION...For Harry Reid...For the 18Z Forecast
Package...Thunderstorms are the main concern again this forecast
period. Storm activity should increase later today in Arizona and
southern Nevada, then track northwest. This includes the Mormon
Mesa and Peach Springs corridors. Although the most favorable time
for storms reaching the terminal is 20Z to 00Z this afternoon,
cloud cover from earlier storms may inhibit development later in
the day. The primary threats with any storms that develop will be
rain, lower CIGS, lightning, and variable gusty outflow winds.
Outside of any convective influence, winds will remain relatively
light, 10 knots or less, and will follow typical diurnal
directional trends.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 18Z Forecast Package...Thunderstorms will be
the main concern again this forecast period. The best chances for
storms will be south and east of the Interstate 15 corridor.
Activity is ongoing in northwestern Arizona and southern Nevada and
should move northwest through the rest of the morning and afternoon.
However, clouds left over from earlier convection may inhibit
additional storm development later today. Some storms should also
reach southeastern California during the afternoon and evening. The
main concerns with storms will be erratic gusty winds, heavy rain,
and low ceilings with terrain obscuration. Away from storms, winds
follow diurnal trends with speeds of less than 12 knots.

&&

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

&&

DISCUSSION/AVIATION...Meltzer

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