Severe Thunderstorm Warning

Severe Thunderstorm Warning
AZC027-180145-
/O.NEW.KPSR.SV.W.0066.250918T0059Z-250918T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Phoenix AZ
559 PM MST Wed Sep 17 2025

The National Weather Service in Phoenix has issued a

* Severe Thunderstorm Warning for...
  Southwestern Yuma County in southwestern Arizona...

* Until 645 PM MST.

* At 559 PM MST, a severe thunderstorm was located near Wellton, or
  12 miles east of Fortuna Foothills, and is nearly stationary.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Fortuna Foothills, Wellton, and Ligurta.

This includes AZ Interstate 8 between mile markers 19 and 35.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3255 11407 3252 11428 3271 11437 3275 11407
TIME...MOT...LOC 0059Z 171DEG 1KT 3262 11419

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

TW

Flash Flood Warning

Flash Flood Warning
AZC019-180245-
/O.NEW.KTWC.FF.W.0056.250918T0040Z-250918T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tucson AZ
540 PM MST Wed Sep 17 2025

The National Weather Service in Tucson has issued a

* Flash Flood Warning for...
  Eastern Pima County in southeastern Arizona...

* Until 745 PM MST.

* At 540 PM MST, Doppler radar and automated rain gauges indicated
  thunderstorms producing heavy rain across the warned area from
  northwest to central Tucson. Between 0.5 and 1 inch of rain has
  fallen. Flash flooding is ongoing or expected to begin shortly.

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

  SOURCE...Radar and automated gauges.

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

* Some locations that will experience flash flooding include...
  Tucson, Casas Adobes, Flowing Wells and Catalina Foothills.

This includes Route 77 between mile markers 70 and 73.

This includes the following Flash Flood Prone Locations...
1st Ave north of Fort Lowell Rd, Stone Ave at Mabel St and Alamo
Wash between Speedway and Grant.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3230 11101 3224 11098 3221 11093 3221 11086
      3224 11082 3230 11087 3232 11090 3232 11096

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

$$

EDWARDS

Flash Flood Warning
AZC019-180245-
/O.NEW.KTWC.FF.W.0055.250917T2341Z-250918T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tucson AZ
441 PM MST Wed Sep 17 2025

The National Weather Service in Tucson has issued a

* Flash Flood Warning for...
  Eastern Pima County in southeastern Arizona...

* Until 745 PM MST.

* At 441 PM MST, Doppler radar and automated rain gauges indicated
  thunderstorms producing heavy rain across the warned area,
  especially Rincon Valley through southern Saguaro National Park
  East. Between 1 and 2 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 and automated gauges.

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

* Some locations that will experience flash flooding include...
  Saguaro National Park East.

This includes the following Flash Flood Prone Locations...
Camino Loma Alta at Rincon Creek and Old Spanish Trail at Jeremy
Wash.

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 3215 11052 3217 11065 3212 11071 3207 11067
      3205 11060 3207 11052 3211 11051

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

$$

EDWARDS/MEYER

Flood Advisory

Flood Advisory
National Weather Service Phoenix AZ
544 PM PDT Wed Sep 17 2025

CAC025-065-180215-
/O.CON.KPSR.FA.Y.0068.000000T0000Z-250918T0215Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Imperial CA-Riverside CA-
544 PM PDT Wed Sep 17 2025

...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 715 PM PDT THIS EVENING...

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

* WHERE...Portions of southeast and southern California, including
  the following counties, in southeast California, Imperial. In
  southern California, Riverside.

* WHEN...Until 715 PM PDT.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.

* ADDITIONAL DETAILS...
  - At 544 PM PDT, Doppler radar indicated heavy rain due to
    thunderstorms. Minor flooding is ongoing or expected to begin
    shortly in the advisory area. Between 1 and 2 inches of rain
    have fallen.
  - Flooding impacts will continue, but no additional rainfall is
    expected.
  - Some locations that will experience flooding include...
    Blythe.
  - Wiley`s Well Campground.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.

&&

LAT...LON 3359 11491 3360 11485 3343 11483 3343 11496
      3347 11501


$$

TW

Flood Advisory
National Weather Service Phoenix AZ
539 PM MST Wed Sep 17 2025

AZC027-180345-
/O.NEW.KPSR.FA.Y.0069.250918T0039Z-250918T0345Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yuma AZ-
539 PM MST Wed Sep 17 2025

...FLOOD ADVISORY IN EFFECT UNTIL 845 PM MST THIS EVENING...

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

* WHERE...A portion of southwest Arizona, including the following
  county, Yuma.

* WHEN...Until 845 PM MST.

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

* ADDITIONAL DETAILS...
  - At 539 PM MST, Doppler radar indicated heavy rain due to
    thunderstorms. Minor flooding is ongoing or expected to begin
    shortly in the advisory area. Between 1 and 2 inches of rain
    have fallen.
  - Additional rainfall amounts up to 1 inch are expected over
    the area. This additional rain will result in minor flooding.
  - Some locations that will experience flooding include...
    mainly rural areas of South Central Yuma County
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

LAT...LON 3261 11386 3247 11376 3239 11380 3230 11408
      3232 11419 3251 11410


$$

Flood Advisory
National Weather Service Tucson AZ
522 PM MST Wed Sep 17 2025

AZC019-180215-
/O.NEW.KTWC.FA.Y.0096.250918T0022Z-250918T0215Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pima AZ-
522 PM MST Wed Sep 17 2025

...FLOOD ADVISORY IN EFFECT UNTIL 715 PM MST THIS EVENING...

* WHAT...Urban area and small stream flooding caused by excessive
  rainfall is expected.

* WHERE...East central Pima, mainly Tucson.

* WHEN...Until 715 PM MST.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
  Water over roadways.

* ADDITIONAL DETAILS...
  - At 522 PM MST, Doppler radar and automated rain gauges
    indicated heavy rain due to thunderstorms. This will cause
    urban and small stream flooding. Between 0.5 and 1 inch of
    rain has fallen.
  - Some locations that will experience flooding include...
    Tucson, Davis-Monthan Air Force Base, Casas Adobes, Flowing
    Wells, Tanque Verde, South Tucson, Catalina Foothills and
    Saguaro National Park East.
  - 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 3232 11085 3223 11076 3216 11063 3210 11072
      3219 11098 3227 11104 3231 11101


$$

EDWARDS/MEYER

Flood Advisory
National Weather Service San Diego CA
519 PM PDT Wed Sep 17 2025

CAC065-180115-
/O.CON.KSGX.FA.Y.0050.000000T0000Z-250918T0111Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Riverside CA-
519 PM PDT Wed Sep 17 2025

...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 611 PM PDT THIS EVENING...

* WHAT...Urban and small stream flooding caused by excessive
  rainfall continues.

* WHERE...A portion of Southwest California, including the following
  county, Riverside.

* WHEN...Until 611 PM PDT.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
  Water over roadways.

* ADDITIONAL DETAILS...
  - At 519 PM PDT, Doppler radar indicated heavy rain due to
    thunderstorms. This will cause urban and small stream
    flooding.
  - Some locations that will experience flooding include...
    Anza, Hwy 74 Between Mountain Center And Anza, Mountain
    Center, Hwy 74 Between Anza And Palm Desert, Aguanga,
    Cahuilla Indian Reservation, Lake Hemet and Santa Rosa
    Mountain.
  - https://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 3343 11659 3343 11662 3343 11680 3360 11681
      3371 11668 3356 11640


$$

SS

Flood Advisory
National Weather Service Phoenix AZ
458 PM MST Wed Sep 17 2025

AZC012-180130-
/O.CON.KPSR.FA.Y.0067.000000T0000Z-250918T0130Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
La Paz AZ-
458 PM MST Wed Sep 17 2025

...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 630 PM MST THIS EVENING...

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

* WHERE...A portion of west central Arizona, including the following
  county, La Paz.

* WHEN...Until 630 PM MST.

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

* ADDITIONAL DETAILS...
  - At 458 PM MST, Doppler radar indicated heavy rain due to
    thunderstorms. Minor flooding is ongoing or expected to begin
    shortly in the advisory area. Between 1 and 2 inches of rain
    have fallen.
  - Flooding impacts will continue, but no additional rainfall is
    expected.
  - Some locations that will experience flooding include...
    Blythe and Ehrenberg.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

LAT...LON 3344 11439 3351 11458 3352 11456 3353 11456
      3355 11452 3357 11454 3358 11454 3359 11454
      3361 11452 3362 11453 3363 11432 3347 11423


$$

TW

Flood Advisory
National Weather Service Tucson AZ
429 PM MST Wed Sep 17 2025

AZC019-180130-
/O.NEW.KTWC.FA.Y.0095.250917T2329Z-250918T0130Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pima AZ-
429 PM MST Wed Sep 17 2025

...FLOOD ADVISORY IN EFFECT UNTIL 630 PM MST THIS EVENING...

* WHAT...Urban area and small stream flooding caused by excessive
  rainfall is expected.

* WHERE...Northeastern Pima.

* WHEN...Until 630 PM MST.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
  Water over roadways.

* ADDITIONAL DETAILS...
  - At 428 PM MST, Doppler radar and automated rain gauges
    indicated heavy rain due to thunderstorms. This will cause
    urban and small stream flooding. Between 0.3 and 0.8 inches
    of rain have fallen.
  - Some locations that will experience flooding include...
    Tucson, Catalina, Oro Valley, Marana, Casas Adobes, Flowing
    Wells, Tortolita, Catalina State Park, Catalina Foothills,
    Sabino Canyon Recreation Area, Saguaro National Park West,
    Picture Rocks and Seven Falls.
  - 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 3251 11082 3249 11077 3233 11071 3229 11095
      3231 11113 3241 11115 3247 11102 3251 11090


$$

EDWARDS/MEYER

Flood Watch

Flood Watch
National Weather Service Phoenix AZ
1239 PM PDT Wed Sep 17 2025

CAZ560>568-570-181030-
/O.NEW.KPSR.FA.A.0003.250918T1200Z-250919T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Joshua Tree NP West-Joshua Tree NP East-Imperial County Southwest-
Salton Sea-Chuckwalla Mountains-Imperial County Southeast-
Imperial County West-Imperial Valley-Chiriaco Summit-Chuckwalla
Valley-
Including the cities of Midland, Winterhaven, Cottonwood Visitor,
Plaster City, Lost Horse-Keys Village, Desert Shores, Ocotillo,
El Centro, Chiriaco Summit, Coolidge Springs, Winona, Imperial
Hot Mineral Springs, Calexico, Brawley, Alamorio, Salton City,
Mountain Spring, and Coyote Wells
1239 PM PDT Wed Sep 17 2025

...FLOOD WATCH IN EFFECT FROM EARLY THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

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

* WHERE...Portions of southeast and southern California, including
  the following areas, in southeast California, Chuckwalla
  Mountains, Chuckwalla Valley, Imperial County Southeast, Imperial
  County Southwest, Imperial County West, Imperial Valley and Salton
  Sea. In southern California, Chiriaco Summit, Joshua Tree NP East
  and Joshua Tree NP West.

* WHEN...From early Thursday morning through late Thursday night.

* 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...
  - 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.

&&

$$

KB

Flood Watch
National Weather Service Las Vegas NV
1225 PM PDT Wed Sep 17 2025

CAZ523>527-180900-
/O.NEW.KVEF.FA.A.0006.250918T1500Z-250919T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Western Mojave Desert-Eastern Mojave Desert-Morongo Basin-Cadiz
Basin-San Bernardino County-Upper Colorado River Valley-
Including the cities of Yucca Valley, Mitchell Caverns, Mountain
Pass, Twentynine Palms, Needles, Vidal Junction, Baker, Daggett,
Morongo Valley, Fort Irwin, and Barstow
1225 PM PDT Wed Sep 17 2025

...FLOOD WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY
NIGHT...

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

* WHERE...A portion of southeast California, including the following
  areas, Cadiz Basin, Eastern Mojave Desert, Morongo Basin, San
  Bernardino County-Upper Colorado River Valley and Western Mojave
  Desert.

* WHEN...From Thursday morning through late Thursday night.

* 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.

* ADDITIONAL DETAILS...
  - http://www.weather.gov/safety/flood

$$

SM

Flood Watch
National Weather Service San Diego CA
1217 PM PDT Wed Sep 17 2025

CAZ055-056-058-060>062-065-180530-
/O.NEW.KSGX.FA.A.0003.250918T1200Z-250919T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Bernardino County Mountains-Riverside County Mountains-San
Diego County Mountains-Apple and Lucerne Valleys-Coachella Valley-
San Diego County Deserts-San Gorgonio Pass near Banning-
Including the cities of Julian, Lucerne Valley, Big Bear Lake,
Running Springs, Coachella, Palm Springs, Crestline, Apple
Valley, La Quinta, Big Bear City, Hesperia, Cathedral City,
Borrego Springs, Wrightwood, Lake Arrowhead, Pine Valley, Indio,
Idyllwild-Pine Cove, Victorville, Palm Desert, and Palm Desert
Country
1217 PM PDT Wed Sep 17 2025

...FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY
NIGHT...

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

* WHERE...A portion of Southwest California, including the following
  areas: Apple and Lucerne Valleys, Coachella Valley, Riverside
  County Mountains, San Bernardino County Mountains, San Diego
  County Deserts, San Diego County Mountains and San Gorgonio Pass
  near Banning.

* WHEN...From late tonight through late Thursday night.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations,
  including burn scar areas. Low-water crossings in the deserts may
  become flooded.

* ADDITIONAL DETAILS...
  - Scattered showers and thunderstorms will overspread the area
    through this time period. Some thunderstorms may produce
    locally heavy rainfall, which may lead to flooding.
  - 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, including near recent burn
areas.

&&

$$

APR

Special Weather Statement

Special Weather Statement
National Weather Service Phoenix AZ
533 PM MST Wed Sep 17 2025

AZZ535-180115-
Southeast Yuma County AZ-
533 PM MST Wed Sep 17 2025

...A STRONG THUNDERSTORM WILL IMPACT SOUTH CENTRAL YUMA COUNTY
THROUGH 615 PM MST...

At 533 PM MST, Doppler radar was tracking a strong thunderstorm 23
miles south of Wellton, or 28 miles southeast of Fortuna Foothills.
This thunderstorm was nearly stationary.

HAZARD...Wind gusts of 50 to 55 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This storm will remain over mainly rural areas of south central Yuma
County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3226 11404 3233 11426 3252 11421 3243 11395
      3225 11401
TIME...MOT...LOC 0033Z 100DEG 4KT 3233 11410

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...55 MPH

$$

TW

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Grand Junction CO
226 AM MDT Wed Sep 17 2025

COZ001>014-017>023-UTZ022>025-027>029-180830-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley-
Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-
Southwest San Juan Mountains-Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
226 AM MDT Wed Sep 17 2025

This Hazardous Weather Outlook is for northwest Colorado, southwest
Colorado, west central Colorado, east central Utah, northeast Utah
and southeast Utah.

.DAY ONE...Today and tonight.

Isolated to scattered showers and thunderstorms are possible this
afternoon, primarily north of I-70. Gusty winds, hail, and brief
periods of heavy rain will be possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Mostly dry weather is expected until moisture returns towards the
end of the week, potentially bringing showers and thunderstorms.


.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$