Flash Flood Warning
Flash Flood Warning
AZC003-212045-
/O.NEW.KTWC.FF.W.0071.260721T1747Z-260721T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tucson AZ
1047 AM MST Tue Jul 21 2026
The National Weather Service in Tucson has issued a
* Flash Flood Warning for...
Southwestern Cochise County in southeastern Arizona...
* Until 145 PM MST.
* At 1047 AM MST, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to 1 inch of rain has fallen.
Additional rainfall amounts up to 1 inch are possible in the warned
area. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Sierra Vista and Charleston.
This includes the following highways...
Route 90 between mile markers 320 and 329. Route 92 between mile
markers 322 and 326.
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 3154 11030 3147 11025 3155 11012 3158 11013
3165 11017 3162 11024
FLASH FLOOD...RADAR INDICATED
$$
JRM
Extreme Heat Warning
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
1023 AM PDT Tue Jul 21 2026
CAZ060-220515-
/O.UPG.KSGX.XH.A.0005.260722T1700Z-260728T0300Z/
/O.NEW.KSGX.XH.W.0006.260723T1700Z-260728T0300Z/
Apple and Lucerne Valleys-
Including the cities of Hesperia, Apple Valley, Lucerne Valley,
and Victorville
1023 AM PDT Tue Jul 21 2026
...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THURSDAY TO 8 PM PDT
MONDAY...
* WHAT...Dangerously hot conditions with high temperatures 100 to
108 and low temperatures in the 70s and lower 80s.
* WHERE...Apple and Lucerne Valleys.
* WHEN...From 10 AM Thursday to 8 PM PDT Monday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Areas of major HeatRisk. Elevated low
temperatures will limit overnight relief from the heat.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
1023 AM PDT Tue Jul 21 2026
CAZ061-062-065-220515-
/O.UPG.KSGX.XH.A.0005.260722T1700Z-260728T0300Z/
/O.NEW.KSGX.XH.W.0006.260722T1700Z-260728T0300Z/
Coachella Valley-San Diego County Deserts-San Gorgonio Pass near
Banning-
Including the cities of Palm Desert Country, Indio, Coachella, La
Quinta, Borrego Springs, Palm Desert, Palm Springs, and Cathedral
City
1023 AM PDT Tue Jul 21 2026
...EXTREME HEAT WARNING IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM PDT
MONDAY...
* WHAT...Dangerously hot conditions with high temperatures of 112 to
117 and low temperatures in the mid 80s to mid 90s.
* WHERE...Coachella Valley, San Diego County Deserts, and San
Gorgonio Pass near Banning.
* WHEN...From 10 AM Wednesday to 8 PM PDT Monday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Major to locally Extreme HeatRisk. Elevated
low temperatures will limit overnight relief from the heat.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
1023 AM PDT Tue Jul 21 2026
CAZ048-220515-
/O.CON.KSGX.HT.Y.0006.260722T1700Z-260728T0300Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of San Bernardino, Rancho Cucamonga,
Fontana, Corona, Moreno Valley, Ontario, and Riverside
1023 AM PDT Tue Jul 21 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM PDT
MONDAY...
* WHAT...High temperatures as hot as the upper 90s to 108 and low
temperatures as warm as the upper 60s to mid 70s. Hottest
conditions expected Thursday through Sunday.
* WHERE...San Bernardino and Riverside County Valleys-The Inland
Empire.
* WHEN...From 10 AM Wednesday to 8 PM PDT Monday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Widespread moderate to localized major
HeatRisk. Elevated low temperatures will limit overnight relief
from the heat.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
1023 AM PDT Tue Jul 21 2026
CAZ050-057-554-220515-
/O.CON.KSGX.HT.Y.0006.260722T1700Z-260728T0300Z/
San Diego County Valleys-Santa Ana Mountains and Foothills-Orange
County Inland Areas-
Including the cities of Mission Viejo, Fullerton, San Marcos,
Santa Ana, Santee, La Mesa, Irvine, El Cajon, Orange, Poway,
Garden Grove, Escondido, and Anaheim
1023 AM PDT Tue Jul 21 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM PDT
MONDAY...
* WHAT...High temperatures in the mid 80s to mid 90s to around 100
for the inland San Diego County valleys with low temperatures in
the mid 60s to lower 70s expected. Hottest conditions expected
Thursday through Sunday.
* WHERE...Orange County Inland Areas, San Diego County Valleys, and
Santa Ana Mountains and Foothills.
* WHEN...From 10 AM Wednesday to 8 PM PDT Monday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Widespread moderate HeatRisk with localized
major HeatRisk. Elevated low temperatures will limit overnight
relief from the heat.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
1023 AM PDT Tue Jul 21 2026
CAZ055-056-058-220515-
/O.CON.KSGX.HT.Y.0006.260722T1700Z-260728T0300Z/
San Bernardino County Mountains-Riverside County Mountains-San
Diego County Mountains-
Including the cities of Big Bear City, Crestline, Running
Springs, Pine Valley, Big Bear Lake, Julian, Lake Arrowhead,
Wrightwood, and Idyllwild-Pine Cove
1023 AM PDT Tue Jul 21 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM PDT
MONDAY...
* WHAT...High temperatures in the mid 80s to mid 90s below 6500 feet
with low temperatures in the mid 60s to mid 70s expected.
* WHERE...Riverside County Mountains, San Bernardino County
Mountains, and San Diego County Mountains.
* WHEN...From 10 AM Wednesday to 8 PM PDT Monday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Widespread moderate HeatRisk, with local
areas of major HeatRisk on mountain foothills. Elevated low
temperatures will limit overnight relief from the heat.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
CO
High Surf Advisory
Coastal Hazard Message
National Weather Service San Diego CA
239 AM PDT Tue Jul 21 2026
CAZ043-552-212100-
/O.CON.KSGX.SU.Y.0004.000000T0000Z-260722T0600Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
239 AM PDT Tue Jul 21 2026
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING...
* WHAT...Large breaking waves of 4 to 7 feet with sets up to 8
feet at south or southwest facing beaches.
* WHERE...San Diego County Coastal Areas and Orange County
Coastal Areas.
* WHEN...Until 11 PM PDT this evening.
* IMPACTS...Dangerous swimming and surfing conditions and
localized beach erosion.
* ADDITIONAL DETAILS...South swell of 4 to 5 feet with a period of
11-13 seconds generating high surf, primarily for south-facing
beaches. High risk of rip currents exists with high surf and
strong longshore currents are expected on west-facing beaches.
While high tide is expected to remain below 5 feet this evening,
localized areas of beach erosion and minor tidal overflow may
occur in combination with the high surf. Swell and surf will
decrease tonight into early Wednesday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.
&&
$$
Flood Watch
Flood Watch
National Weather Service Grand Junction CO
959 AM MDT Tue Jul 21 2026
COZ003-007-009-017-020-021-UTZ022-025-027>029-220300-
/O.NEW.KGJT.FA.A.0002.260721T1800Z-260722T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Roan and Tavaputs Plateaus-Debeque to Silt Corridor-Grand and
Battlement Mesas-Uncompahgre Plateau and Dallas Divide-Paradox
Valley/Lower Dolores River-Four Corners/Upper Dolores River-
Southeast Utah-Tavaputs Plateau-Arches/Grand Flat-La Sal and
Abajo Mountains-Canyonlands/Natural Bridges-
Including the cities of Rifle, New Castle, Silt, Parachute,
Collbran, De Beque, Cedaredge, Ridgway, Loghill Village, Nucla,
Naturita, Norwood, Slick Rock, Cortez, Mancos, Dolores, Dove Creek,
Blanding, Goulding, Bluff, Tselakai Dezza, Aneth, Montezuma Creek,
Mexican Hat, Halchita, White Mesa, Glen Canyon National Recreation
Area, Rainbow Bridge South Trailhead, Moab, Green River, Castle
Valley, Monticello, La Sal, Eastland, Spanish Valley, Canyonlands
National Park, and Fry Canyon
959 AM MDT Tue Jul 21 2026
...FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT...
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Portions of Colorado, including the following areas,
Debeque to Silt Corridor, Four Corners/Upper Dolores River, Grand
and Battlement Mesas, Paradox Valley/Lower Dolores River, Roan and
Tavaputs Plateaus and Uncompahgre Plateau and Dallas Divide and
Utah, including the following areas, Arches/Grand Flat,
Canyonlands/Natural Bridges, La Sal and Abajo Mountains, Southeast
Utah and Tavaputs Plateau.
* WHEN...Through late tonight.
* IMPACTS...Excessive runoff may result in flooding of creeks,
streams, slot canyons, slick rock areas, recent burn scars
including Babylon, Deer Creek, Turner Gulch, Lee, PL Gulch,
Ferris, Snyder, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
KAA
Flood Watch
National Weather Service Albuquerque NM
949 AM MDT Tue Jul 21 2026
NMZ201-202-220000-
/O.EXA.KABQ.FA.A.0009.260721T1800Z-260722T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Plateau-Chuska Mountains-
949 AM MDT Tue Jul 21 2026
...FLOOD WATCH IN EFFECT UNTIL 9 PM MDT THIS EVENING...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of northwest New Mexico, including the following
areas, Chuska Mountains and Northwest Plateau.
* WHEN...Until 9 PM MDT this evening.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Storms with heavy rainfall rates of 1 to 2 inches per hour will
move off to the northwest at 5 to 15 mph this afternoon. Storms
may continuously move over the same areas, creating localized
rainfall totals over 2 inches.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Flood Watch
National Weather Service Albuquerque NM
949 AM MDT Tue Jul 21 2026
NMZ205-208-209-220000-
/O.CON.KABQ.FA.A.0009.260721T1800Z-260722T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
West Central Plateau-Southwest Mountains-San Francisco River
Valley-
949 AM MDT Tue Jul 21 2026
...FLOOD WATCH REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of west central New Mexico, including the
following areas, San Francisco River Valley, Southwest Mountains
and West Central Plateau.
* WHEN...Until 9 PM MDT this evening.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Storms with heavy rainfall rates of 1 to 2 inches per hour will
move off to the northwest at 5 to 15 mph this afternoon. Storms
may continuously move over the same areas, creating localized
rainfall totals over 2 inches.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Flood Watch
National Weather Service Flagstaff AZ
404 AM MST Tue Jul 21 2026
AZZ004>009-012>018-037>040-220500-
/O.CON.KFGZ.FA.A.0003.260721T1800Z-260722T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kaibab Plateau-Marble and Glen Canyons-Grand Canyon Country-
Coconino Plateau-Yavapai County Mountains-Northeast Plateaus and
Mesas Hwy 264 Northward-Little Colorado River Valley in Coconino
County-Little Colorado River Valley in Navajo County-Little
Colorado River Valley in Apache County-Western Mogollon Rim-
Eastern Mogollon Rim-White Mountains-Northern Gila County-Yavapai
County Valleys and Basins-Oak Creek and Sycamore Canyons-Black
Mesa Area-Northeast Plateaus and Mesas South of Hwy 264-
Including the cities of Show Low, Heber, Bagdad, Young, Navajo
National Monument, Camp Verde, Tusayan, St. Johns, Sedona,
Chambers, Dilkon, Shonto, Valle, Kykotsmovi, Springerville, Jacob
Lake, Seligman, Holbrook, Cottonwood, Village of Oak Creek, Lees
Ferry, Munds Park, Cordes Junction, Winslow, Grand Canyon North Rim,
Happy Jack, Jadito, Kaibito, Keams Canyon, Forest Lakes,
Strawberry, Ash Fork, Pinetop-Lakeside, Wupatki National
Monument, Snowflake, Payson, Tuba City, Greer, Fredonia, Grand Canyon
Village, Steamboat Canyon, Flagstaff, Page, Supai, Prescott,
Williams, and Crown King
404 AM MST Tue Jul 21 2026 /504 AM MDT Tue Jul 21 2026/
...FLOOD WATCH REMAINS IN EFFECT FROM 11 AM MST /NOON MDT/ THIS
MORNING THROUGH THIS EVENING...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Yavapai County, Coconino County, northern Gila County,
Navajo County, central and southern Apache County.
* WHEN...From 11 AM MST /noon MDT/ this morning through this
evening.
* IMPACTS...Flash flooding will be possible in creeks, normally dry
washes, swimming holes, and over recently burned areas. Raging
killer currents will be possible in side canyons and narrow slot
canyons. Low-water crossings may be flooded.
* ADDITIONAL DETAILS...
- Deep monsoon moisture in place across northern Arizona will lead
to storms capable of producing rainfall in excess of 2 inches per
hour, resulting in an enhanced risk of flash flooding.
- Additional information is available at weather.gov/flagstaff.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Have a way to receive Flash Flood Warnings and be prepared to take
action should warnings be issued.
Consider changing your plans if you were going to hike, boat, or
paddleboard to a slot canyon or normally dry wash. If you do still
decide to recreate, check in at a nearby visitor center or ranger
station.
&&
$$
JJ
Flood Watch
National Weather Service Salt Lake City UT
306 AM MDT Tue Jul 21 2026
UTZ113-115>131-220015-
/O.CON.KSLC.FA.A.0005.260721T1800Z-260722T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Wasatch Plateau/Book Cliffs-Western Millard and Juab Counties-
Eastern Juab/Millard Counties-Central Mountains-Sanpete Valley-
Sevier Valley-Castle Country-San Rafael Swell-Southwest Utah-
Lower Washington County-Zion National Park-Southern Mountains-
Upper Sevier River Valleys-Bryce Canyon Country-South Central
Utah-Capitol Reef National Park and Vicinity-Western Canyonlands-
Glen Canyon Recreation Area/Lake Powell-
Including the following locations - Cove Fort, Manti, Ephraim,
Torrey, Emery, Panguitch, Scipio, Bryce Canyon City, Cedar City,
Hanksville, Alton, Fillmore, Kanab, Brian Head, Circleville,
Scofield, Ivins, Mt Pleasant, Hurricane, Green River, Fish Lake,
Milford, Indian Canyon, Springdale, Salina, St George, Goblin
Valley, Koosharem, Price, Bullfrog, Richfield, Big Water, Loa,
Joes Valley, Delta, Nephi, Beaver, Little Sahara, Castle Dale,
and Escalante
306 AM MDT Tue Jul 21 2026
...FLOOD WATCH REMAINS IN EFFECT FROM NOON MDT TODAY THROUGH LATE
TONIGHT...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of Utah, including the following areas, Castle
Country, Central Mountains, Eastern Juab/Millard Counties, San
Rafael Swell, Sanpete Valley, Sevier Valley, Wasatch Plateau/Book
Cliffs, Western Millard and Juab Counties, Bryce Canyon Country,
Capitol Reef National Park and Vicinity, Glen Canyon Recreation
Area/Lake Powell, South Central Utah, Southern Mountains, Upper
Sevier River Valleys, Western Canyonlands, Lower Washington
County, Southwest Utah and Zion National Park.
* WHEN...From noon MDT today through late tonight.
* IMPACTS...Excessive rainfall may result in flooding of slot
canyons, normally dry washes, slick rock areas, recent burn scars
including Forsyth, France Canyon, Cottonwood, Silver King, and
Monroe Canyon, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
JAC
Flood Watch
National Weather Service Tucson AZ
1214 AM MST Tue Jul 21 2026
AZZ503-507>513-220500-
/O.CON.KTWC.FA.A.0002.000000T0000Z-260722T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Upper Santa Cruz River Valley/Altar Valley-Upper San Pedro River
Valley-Eastern Cochise County below 5000 feet-Upper Gila River
Valley-White Mountains of Graham and Greenlee Counties-Galiuro
and Pinaleno Mountains-Chiricahua Mountains-Dragoon and Mule and
Huachuca and Santa Rita Mountains-
Including the cities of Safford, Bisbee, Benson, Willcox, Mount
Graham, Clifton, Canelo Hills, Nogales, Hannagan Meadow,
Chiricahua N.M., Madera Canyon, Sierra Vista, and Douglas
1214 AM MST Tue Jul 21 2026
...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of Southeast Arizona including Graham, Greenlee,
Cochise and Santa Cruz counties.
* WHEN...The Flash Flood Watch remains in effect through 10 PM MST
this evening.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, dry washes, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- The combination of ample moisture and an upper-level disturbance
passing across portions of Southeast Arizona from the east today
will result in widespread showers and thunderstorms...especially
south and east of Tucson. These storms will be capable of
producing heavy rainfall, with localized rainfall amounts between
1 and 3 inches. Given how saturated soils are across the area
from storms over the past week, there is an increased potential
that rainfall runoff to produce flash flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
CWR
Flood Watch
National Weather Service Phoenix AZ
1208 AM MST Tue Jul 21 2026
AZZ556-560-562-563-212200-
/O.CON.KPSR.FA.A.0002.260721T1800Z-260722T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Tonto Basin-San Carlos-Globe/Miami-Southeast Gila County-
Including the cities of Globe, Peridot, Miami, San Carlos, and Punkin
Center
1208 AM MST Tue Jul 21 2026
...FLOOD WATCH REMAINS IN EFFECT FROM 11 AM MST THIS MORNING THROUGH
THIS EVENING...
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...A portion of south central Arizona, including the following
areas, Globe/Miami, San Carlos, Southeast Gila County and Tonto
Basin.
* WHEN...From 11 AM MST this morning through this evening.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Deep monsoon moisture in place across Eastern Arizona will lead
to storms capable of producing rainfall between 1-2 inches per
hour, to locally higher, resulting in an enhanced risk of flash
flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
CK
Extreme Heat Watch
URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
124 AM MST Tue Jul 21 2026
AZZ530-532-CAZ562>570-212200-
/O.CON.KPSR.XH.A.0005.260722T1700Z-260728T0300Z/
Parker Valley-Yuma-Imperial County Southwest-Salton Sea-
Chuckwalla Mountains-Imperial County Southeast-Imperial County
West-Imperial Valley-Chiriaco Summit-Palo Verde Valley-Chuckwalla
Valley-
Including the cities of Winterhaven, Ehrenberg, Ripley, Winona,
Brawley, Imperial Hot Mineral Springs, Chiriaco Summit, Palo Verde,
Midland, Plaster City, Desert Shores, Blythe, Fortuna Foothills,
Coyote Wells, El Centro, Alamorio, Martinez Lake, Yuma, Salton City,
Parker, Mountain Spring, Coolidge Springs, Ocotillo, and Calexico
124 AM MST Tue Jul 21 2026 /124 AM PDT Tue Jul 21 2026/
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH MONDAY EVENING...
* WHAT...Dangerously hot conditions possible. Afternoon temperatures
108 to 116. Major Heat Risk.
* WHERE...Southwest Arizona and southeast California.
* WHEN...From Wednesday morning through Monday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
An Extreme Heat Watch means that a period of very hot temperatures,
even by local standards, may occur. Actions should be taken to lessen
the impact of the extreme heat.
Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose-fitting clothing when possible and
drink plenty of water.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
Public cooling shelters are available in some areas. Consult county
officials for more details.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
124 AM MST Tue Jul 21 2026
AZZ531-533-535-536-CAZ560-561-212200-
/O.CON.KPSR.XH.A.0005.260723T1700Z-260728T0300Z/
Kofa-Central La Paz-Southeast Yuma County-Gila River Valley-
Joshua Tree NP West-Joshua Tree NP East-
Including the cities of Brenda, Vicksburg Junction, Vicksburg,
Ligurta, Palm Canyon, Cottonwood Visitor, Harcuvar, Lost
Horse-Keys Village, Quartzsite, and Salome
124 AM MST Tue Jul 21 2026 /124 AM PDT Tue Jul 21 2026/
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH
MONDAY EVENING...
* WHAT...Dangerously hot conditions possible. Afternoon temperatures
108 to 116. Major Heat Risk.
* WHERE...In Arizona, Central La Paz, Gila River Valley, Kofa, and
Southeast Yuma County. In California, Joshua Tree National Park.
* WHEN...From Thursday morning through Monday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
An Extreme Heat Watch means that a period of very hot temperatures,
even by local standards, may occur. Actions should be taken to lessen
the impact of the extreme heat.
Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose-fitting clothing when possible and
drink plenty of water.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
Public cooling shelters are available in some areas. Consult county
officials for more details.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
124 AM MST Tue Jul 21 2026
AZZ534-538-539-541-545-547-549-552>555-559-212200-
/O.CON.KPSR.XH.A.0005.260723T1700Z-260728T0300Z/
Aguila Valley-Tonopah Desert-Gila Bend-Cave Creek/New River-New
River Mesa-Rio Verde/Salt River-Fountain Hills/East Mesa-Superior-
Northwest Pinal County-West Pinal County-Apache Junction/Gold
Canyon-Sonoran Desert Natl Monument-
Including the cities of Gladden, Fountain Hills, Tonopah, Apache
Junction, Kaka, Arlington, Florence, Wickenburg, Aguila, Superior,
Hassayampa, Sentinel, Cactus Forest, Coolidge, Gila Bend, Tortilla
Flat, Casa Grande, Wintersburg, and Scottsdale
124 AM MST Tue Jul 21 2026
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH
MONDAY EVENING...
* WHAT...Dangerously hot conditions possible. Afternoon temperatures
105 to 115. Major Heat Risk.
* WHERE...Portions of South-central Arizona.
* WHEN...From Thursday morning through Monday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.
* ADDITIONAL DETAILS...In Maricopa County, Call 2-1-1 to find a free
cooling center, transportation, water and more.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
An Extreme Heat Watch means that a period of very hot temperatures,
even by local standards, may occur. Actions should be taken to lessen
the impact of the extreme heat.
Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose-fitting clothing when possible and
drink plenty of water.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
Public cooling shelters are available in some areas. Consult county
officials for more details.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
124 AM MST Tue Jul 21 2026
AZZ537-540-542>544-546-548-550-551-212200-
/O.CON.KPSR.XH.A.0005.260723T1700Z-260728T0300Z/
Northwest Valley-Buckeye/Avondale-Deer Valley-Central Phoenix-
North Phoenix/Glendale-Scottsdale/Paradise Valley-East Valley-
South Mountain/Ahwatukee-Southeast Valley/Queen Creek-
Including the cities of Goodyear, Circle City, Sun City West, Peoria,
Phoenix, Paradise Valley, Gilbert, Cashion, Surprise, Tempe, Sun
Lakes, Chandler, Wittmann, Liberty, Queen Creek, Mesa, Avondale, and
Beardsley
124 AM MST Tue Jul 21 2026
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH
MONDAY EVENING...
* WHAT...Dangerously hot conditions possible. Afternoon temperatures
110 to 115. Major Heat Risk.
* WHERE...South central Arizona, including the Phoenix metro.
* WHEN...From Thursday morning through Monday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.
* ADDITIONAL DETAILS...In Maricopa County, Call 2-1-1 to find a free
cooling center, transportation, water and more.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
An Extreme Heat Watch means that a period of very hot temperatures,
even by local standards, may occur. Actions should be taken to lessen
the impact of the extreme heat.
Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose-fitting clothing when possible and
drink plenty of water.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
Public cooling shelters are available in some areas. Consult county
officials for more details.
&&
$$
CK
URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
1228 AM PDT Tue Jul 21 2026
AZZ002-570-571-576-CAZ522>527-NVZ016-017-020-022-025-026-221200-
/O.NEW.KVEF.XH.A.0002.260723T1700Z-260728T0300Z/
Lake Havasu and Fort Mohave-Lake Mead - AZ side-Lake Mohave - AZ
side-Northwest Deserts-Death Valley National Park-Western Mojave
Desert-Eastern Mojave Desert-Morongo Basin-Cadiz Basin-San
Bernardino County-Upper Colorado River Valley-Northeast Clark
County-Western Clark and Southern Nye County-Las Vegas Valley-
Southern Clark County-Lake Mead - NV side-Lake Mohave - NV side-
Including the cities of Valentine, Bullhead City, Baker, Desert Rock,
Topock, North Las Vegas, Golden Valley, Primm, Dolan Springs, Fort
Irwin, Temple Bar, Morongo Valley, Searchlight,
Cal-Nev-Ari, Stovepipe Wells, Wikieup, Las Vegas, Vidal Junction,
Hoover Dam, Lake Havasu City, Daggett, Furnace Creek, Amargosa
Valley, Desert Hills, Henderson, Barstow, Pahrump, Laughlin, Boulder
City, Shoshone, South Cove, Mountain Pass, Overton, Mitchell Caverns,
Kingman, Yucca, Moapa, Indian Springs, Yucca Valley, Twentynine
Palms, Mesquite, and Needles
1228 AM PDT Tue Jul 21 2026 /1228 AM MST Tue Jul 21 2026/
...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH MONDAY
EVENING...
* WHAT...Dangerously hot conditions possible. Afternoon temperatures
in the desert valleys will climb into the 108 to 114 degree range,
and may exceed 115 along the Colorado River Valley, and 120 Death
Valley.
* WHERE...Portions of northwest Arizona, southeast California, and
southern Nevada including the Greater Mojave Desert region.
* WHEN...From Thursday morning through Monday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
Monitor the latest forecasts and warnings for updates.
&&
$$
CO
