WWA Summary for All Issued by PSR

Flash Flood Warning

Flash Flood Statement
National Weather Service Las Vegas NV
504 PM PST Sat Nov 15 2025

CAC071-160300-
/O.CON.KVEF.FF.W.0121.000000T0000Z-251116T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Bernardino CA-
504 PM PST Sat Nov 15 2025

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING
FOR SAN BERNARDINO COUNTY...

At 504 PM PST, Doppler radar indicated showers and thunderstorms
producing heavy rain in the warned area. Law enforcement has
reported vehicles stuck in flood waters on Fort Irwin Road near
Interstate 15. Flash flooding is already occurring.

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...
  Daggett, Newberry Springs and Nebo Center.

This includes the following highways...
Interstate 15 in California between mile markers 81 and 111.
Interstate 40 in California between mile markers 4 and 37.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.

&&

LAT...LON 3523 11683 3510 11644 3474 11638 3479 11694
      3504 11701

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

$$

MW

Winter Weather Advisory

URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
116 PM MST Sat Nov 15 2025

UTZ125-161130-
/O.CON.KSLC.WW.Y.0023.251116T0600Z-251117T1200Z/
Southern Mountains-
Including the following locations - Alton and Brian Head
116 PM MST Sat Nov 15 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 5 AM MST MONDAY...

* WHAT...Snow expected. Snow totals of 6 to 12 inches above 9000
  feet, 2 to 6 inches between 7500 and 9000 feet.

* WHERE...Southern Mountains.

* WHEN...From 11 PM this evening to 5 AM MST Monday.

* IMPACTS...Winter driving conditions are likely for all mountain
  routes above 9500 feet tonight, at or above 8000 feet by Sunday
  afternoon, with the most significant impacts occurring during
  periods of heavy precipitation.

* ADDITIONAL DETAILS...Snow levels will start near 9500 to 10000
  feet tonight, falling to near 7500 feet by Sunday afternoon.  Snow
  levels will fall as low as 6500 to 7000 feet in heavier
  precipitation Sunday afternoon into Monday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. For winter road
conditions from the Utah Department of Transportation, visit
http://www.udottraffic.utah.gov.

For graphical depictions of the snowfall forecast, including
Official NWS Forecast, High End Amount, and Low End Amount, visit
weather.gov/slc/winter.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/saltlakecity.

For information on potential travel impacts visit
http://udottraffic.utah.gov

MPS

Flood Advisory

Flood Advisory
National Weather Service Las Vegas NV
548 PM PST Sat Nov 15 2025

CAC071-160500-
/O.NEW.KVEF.FA.Y.0084.251116T0148Z-251116T0500Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Bernardino CA-
548 PM PST Sat Nov 15 2025

...FLOOD ADVISORY IN EFFECT UNTIL 9 PM PST THIS EVENING...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...A portion of southern California, including the following
  county, San Bernardino.

* WHEN...Until 900 PM PST.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
  Some low-water crossings may become impassable.

* ADDITIONAL DETAILS...
  - At 548 PM PST, Doppler radar indicated heavy rain due to
    thunderstorms. Minor flooding is ongoing or expected to begin
    shortly in the advisory area.
  - Some locations that will experience flooding include...
    Baker, Sr 127 Near Dumont Dunes, Dumont Dunes, Trona,
    Homewood Canyon-Valley Wells and Searles Valley.
  - This includes Interstate 15 in California between mile
    markers 135 and 166.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3523 11607 3544 11763 3564 11763 3565 11762
      3568 11762 3568 11765 3571 11765 3571 11763
      3580 11763 3579 11575 3543 11561


$$

MW

Flood Advisory
National Weather Service Las Vegas NV
426 PM PST Sat Nov 15 2025

CAC071-160215-
/O.CON.KVEF.FA.Y.0083.000000T0000Z-251116T0215Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Bernardino CA-
426 PM PST Sat Nov 15 2025

...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 615 PM PST THIS EVENING...

* WHAT...Flooding caused by excessive rainfall continues.

* WHERE...A portion of southern California, including the following
  county, San Bernardino.

* WHEN...Until 615 PM PST.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
  Rises in small streams and normally dry washes.

* ADDITIONAL DETAILS...
  - At 426 PM PST, Doppler radar indicated heavy rain due to
    thunderstorms. Minor flooding is ongoing or expected to begin
    shortly in the advisory area. Between 0.25 and 1 inch of rain
    has fallen.
  - Some locations that will experience flooding include...
    Twentynine Palms, Yucca Valley, Twentynine Palms Base, Joshua
    Tree Lake Campground, Joshua Tree, Twentynine Palms Airport
    and Morongo Valley.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3423 11594 3404 11586 3403 11600 3408 11600
      3408 11604 3411 11604 3411 11605 3412 11605
      3412 11626 3408 11626 3408 11644 3403 11647
      3403 11662 3410 11660 3414 11647 3421 11644
      3426 11644 3432 11648 3436 11640 3447 11642


$$

MW

Flood Advisory
National Weather Service Las Vegas NV
259 PM PST Sat Nov 15 2025

CAC027-160500-
/O.CON.KVEF.FA.Y.0081.000000T0000Z-251116T0500Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Inyo CA-
259 PM PST Sat Nov 15 2025

...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING...

* WHAT...Flooding caused by excessive rainfall continues.

* WHERE...A portion of southeast California, including the following
  county, Inyo.

* WHEN...Until 900 PM PST Saturday.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
  Some low-water crossings may become impassable.

* ADDITIONAL DETAILS...
  - At 259 PM PST, Doppler radar indicated heavy rain due to
    thunderstorms. Minor flooding is ongoing or expected to begin
    shortly in the advisory area. Between 0.25 and 1.25 inches of
    rain have fallen.
  - Additional rainfall amounts up to 1.5 inches are expected
    over the area. This additional rain will result in minor
    flooding.
  - Some locations that will experience flooding include...
    Olancha, Lone Pine, Darwin, Panamint Springs, Homewood
    Canyon-Valley Wells, Keeler, Cartago, Diaz Lake, Portagee
    Lake Campground, Tuttle Creek Campground, Whitney Portal
    Campground and Searles Valley.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3580 11683 3579 11801 3593 11798 3595 11802
      3598 11800 3609 11807 3617 11806 3621 11810
      3628 11813 3635 11810 3639 11816 3642 11814
      3643 11821 3648 11825 3652 11824 3656 11829
      3660 11827 3665 11833 3666 11787 3617 11684


$$

MW

Flood Watch

Flood Watch
National Weather Service Las Vegas NV
232 PM PST Sat Nov 15 2025

CAZ519>527-161045-
/O.CON.KVEF.FA.A.0008.000000T0000Z-251116T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Eastern Sierra Slopes-Owens Valley-White Mountains of Inyo County-
Death Valley National Park-Western Mojave Desert-Eastern Mojave
Desert-Morongo Basin-Cadiz Basin-San Bernardino County-Upper
Colorado River Valley-
Including the cities of Vidal Junction, Mountain Pass, Aspendell,
Bristlecone Pine, Morongo Valley, Fort Irwin, Westgard Pass,
Mitchell Caverns, Yucca Valley, Shoshone, Furnace Creek, Baker,
Bishop, Stovepipe Wells, Twentynine Palms, Lone Pine, Olancha,
Barstow, Whitney Portal, Independence, Daggett, and Needles
232 PM PST Sat Nov 15 2025

...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT...

* WHAT...Flooding caused by excessive rainfall continues to be
  possible.

* WHERE...A portion of southeast California, including the following
  areas, Cadiz Basin, Death Valley National Park, Eastern Mojave
  Desert, Eastern Sierra Slopes, Morongo Basin, Owens Valley, San
  Bernardino County-Upper Colorado River Valley, Western Mojave
  Desert and White Mountains of Inyo County.

* WHEN...Through late tonight.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Flooding may occur in poor drainage and urban areas. Low-water
  crossings may be flooded. Storm drains and ditches may become
  clogged with debris.

* ADDITIONAL DETAILS...
  - Periods of moderate to heavy rain and embedded thunderstorms
    will remain possible through this evening with heaviest
    rainfall totals exceeding 2 inches.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

$$

CO

Flood Watch
National Weather Service Phoenix AZ
1226 PM PST Sat Nov 15 2025

CAZ560-568-160600-
/O.CON.KPSR.FA.A.0007.000000T0000Z-251116T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Joshua Tree NP West-Chiriaco Summit-
Including the cities of Chiriaco Summit, Lost Horse-Keys Village,
and Cottonwood Visitor
1226 PM PST Sat Nov 15 2025

...FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING...

* WHAT...Flooding caused by excessive rainfall continues to be
  possible.

* WHERE...A portion of southern California, including the following
  areas, Chiriaco Summit and Joshua Tree NP.

* WHEN...Until 10 PM PST this evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Low-water crossings may be flooded.

* ADDITIONAL DETAILS...
  - A weather system is producing pockets of moderate to heavy
    rainfall, with the greatest precipitation threat across
    Joshua Tree National Park.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

$$

Flood Watch
National Weather Service San Diego CA
1201 PM PST Sat Nov 15 2025

CAZ043-048-050-055>058-060>062-065-552-554-160600-
/O.CON.KSGX.FA.A.0005.000000T0000Z-251116T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Diego County Coastal Areas-San Bernardino and Riverside
County Valleys-The Inland Empire-San Diego County Valleys-San
Bernardino County Mountains-Riverside County Mountains-Santa Ana
Mountains and Foothills-San Diego County Mountains-Apple and
Lucerne Valleys-Coachella Valley-San Diego County Deserts-San
Gorgonio Pass near Banning-Orange County Coastal Areas-Orange
County Inland Areas-
Including the cities of Riverside, Ontario, La Mesa, Poway,
Fontana, Hesperia, Wrightwood, Anaheim, Costa Mesa, Pine Valley,
Coachella, Big Bear Lake, Santa Ana, Chula Vista, Indio,
Cathedral City, Santee, Big Bear City, Newport Beach, San
Bernardino, Borrego Springs, Escondido, Irvine, Orange,
Idyllwild-Pine Cove, Palm Desert Country, Corona, Rancho
Cucamonga, National City, El Cajon, Oceanside, Carlsbad, Moreno
Valley, Palm Springs, Palm Desert, Garden Grove, Fullerton, La
Quinta, Lucerne Valley, Lake Arrowhead, Julian, San Marcos,
Encinitas, San Clemente, Vista, Huntington Beach, Apple Valley,
Laguna Beach, Mission Viejo, San Diego, Running Springs,
Victorville, and Crestline
1201 PM PST Sat Nov 15 2025

...FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING...

* WHAT...Flooding caused by excessive rainfall continues to be
  possible.

* WHERE...A portion of Southwest California, including the following
  areas, Apple and Lucerne Valleys, Coachella Valley, Orange County
  Coastal Areas, Orange County Inland Areas, Riverside County
  Mountains, San Bernardino County Mountains, San Bernardino and
  Riverside County Valleys-The Inland Empire, San Diego County
  Coastal Areas, San Diego County Deserts, San Diego County
  Mountains, San Diego County Valleys, San Gorgonio Pass near
  Banning and Santa Ana Mountains and Foothills.

* WHEN...Until 10 PM PST this evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations,
  including low-water crossings. Flooding may occur in poor drainage
  and urban areas. There is an increased risk for debris flows near
  fire burn scars. Rockfalls and mud possible on mountain highways.

* ADDITIONAL DETAILS...
  - A Pacific storm will continue to bring moderate to heavy
    rainfall through this afternoon and evening along with a
    15-30 percent chance of thunderstorms. The heavy rainfall,
    along with periods of higher intensity rainfall, will
    increase the risk of flooding, especially over the recently
    burned areas.
  - https://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

$$

APR