Extreme Heat Warning
URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
339 PM PDT Thu Oct 8 2026
CAZ522-092300-
/O.CON.KVEF.XH.W.0007.000000T0000Z-261010T0300Z/
Death Valley National Park-
Including the cities of Furnace Creek, Shoshone, and Stovepipe Wells
339 PM PDT Thu Oct 8 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY...
* WHAT...Dangerously hot conditions with high temperatures near 110
degrees and overnight lows between 80 and 85 degrees. This will
yield at least major Heat Risk, impacting anyone without adequate
cooling and hydration.
* WHERE...Elevations in Death Valley National Park below 2000 feet.
* WHEN...Until 8 PM PDT Friday.
* 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.
Take extra precautions when outside. Wear lightweight and
loose-fitting clothing. Try to limit strenuous activities to early
morning or evening. Take action when you see symptoms of heat
exhaustion and heat stroke.
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.
Monitor the latest forecasts and warnings for updates.
&&
$$
CO
URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
1233 PM MST Thu Oct 8 2026
AZZ530-536-CAZ569-570-090300-
/O.CON.KPSR.XH.W.0010.000000T0000Z-261009T0300Z/
Parker Valley-Gila River Valley-Palo Verde Valley-Chuckwalla
Valley-
Including the cities of Blythe, Ripley, Parker, Martinez Lake,
Ligurta, Palo Verde, Ehrenberg, and Midland
1233 PM MST Thu Oct 8 2026 /1233 PM PDT Thu Oct 8 2026/
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/
THIS EVENING...
* WHAT...Dangerously hot conditions possible. Afternoon temperatures
102 to 106. Major Heat Risk.
* WHERE...In Arizona, Gila River Valley and Parker Valley. In
California, Chuckwalla Valley and Palo Verde Valley.
* WHEN...Until 8 PM MST /8 PM PDT/ this evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
An Extreme Heat Warning means that a period of very hot temperatures,
even by local standards, will occur. Actions should be taken to
lessen the impact of the extreme heat.
Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose-fitting clothing when possible and
drink plenty of water.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
Public cooling shelters are available in some areas. Consult county
officials for more details.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
1233 PM MST Thu Oct 8 2026
AZZ532-091200-
/O.CON.KPSR.XH.W.0010.000000T0000Z-261010T0300Z/
Yuma-
Including the cities of Yuma and Fortuna Foothills
1233 PM MST Thu Oct 8 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST FRIDAY...
* WHAT...Dangerously hot conditions possible. Afternoon temperatures
103 to 107. Major Heat Risk.
* WHERE...Yuma area.
* WHEN...Until 8 PM MST Friday.
* 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 Warning means that a period of very hot temperatures,
even by local standards, will 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
1233 PM MST Thu Oct 8 2026
CAZ566-567-091200-
/O.CON.KPSR.XH.W.0010.000000T0000Z-261010T0300Z/
Imperial County West-Imperial Valley-
Including the cities of Winona, Ocotillo, Coyote Wells, Salton City,
Calexico, Alamorio, Coolidge Springs, Plaster City, Brawley, and El
Centro
1233 PM PDT Thu Oct 8 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY...
* WHAT...Dangerously hot conditions possible. Afternoon temperatures
104 to 109. Major Heat Risk.
* WHERE...Portions of Imperial County, including the Imperial Valley.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
An Extreme Heat Warning means that a period of very hot temperatures,
even by local standards, will occur. Actions should be taken to
lessen the impact of the extreme heat.
Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose-fitting clothing when possible and
drink plenty of water.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
Public cooling shelters are available in some areas. Consult county
officials for more details.
&&
$$
AR
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
1219 AM PDT Thu Oct 8 2026
CAZ043-090300-
/O.CON.KSGX.XH.W.0010.000000T0000Z-261009T0300Z/
San Diego County Coastal Areas-
Including the cities of Carlsbad, Vista, Oceanside, San Diego, Chula
Vista, National City, and Encinitas
1219 AM PDT Thu Oct 8 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...
* WHAT...High temperatures in the lower to mid 90s for the mesas.
* WHERE...San Diego County Coastal Areas.
* WHEN...Until 8 PM PDT this 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
1219 AM PDT Thu Oct 8 2026
CAZ048-090300-
/O.CON.KSGX.XH.W.0010.000000T0000Z-261009T0300Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of Rancho Cucamonga, Fontana, Riverside,
Ontario, Corona, San Bernardino, and Moreno Valley
1219 AM PDT Thu Oct 8 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...
* WHAT...Dangerously hot conditions with high temperatures in the
upper 90s to 103.
* WHERE...San Bernardino and Riverside County Valleys-The Inland
Empire.
* WHEN...Until 8 PM PDT this evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
1219 AM PDT Thu Oct 8 2026
CAZ050-090300-
/O.CON.KSGX.XH.W.0010.000000T0000Z-261009T0300Z/
San Diego County Valleys-
Including the cities of Escondido, El Cajon, Santee, Poway, San
Marcos, and La Mesa
1219 AM PDT Thu Oct 8 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...
* WHAT...Dangerously hot conditions with high temperatures in the
90s.
* WHERE...San Diego County Valleys.
* WHEN...Until 8 PM PDT this 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
1219 AM PDT Thu Oct 8 2026
CAZ061-062-065-090300-
/O.CON.KSGX.XH.W.0010.000000T0000Z-261010T0300Z/
Coachella Valley-San Diego County Deserts-San Gorgonio Pass near
Banning-
Including the cities of Cathedral City, Coachella, Desert Hot
Springs, La Quinta, Palm Desert, Borrego Springs, Indio, Palm
Springs, Banning, and Palm Desert Country
1219 AM PDT Thu Oct 8 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY...
* WHAT...Dangerously hot conditions with high temperatures 106 to
110.
* WHERE...Coachella Valley, San Diego County Deserts, and San
Gorgonio Pass near Banning.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
Coastal Flood Advisory
Coastal Hazard Message
National Weather Service San Diego CA
158 PM PDT Thu Oct 8 2026
CAZ043-552-090515-
/O.CON.KSGX.CF.Y.0006.000000T0000Z-261013T2100Z/
/O.CON.KSGX.BH.S.0012.000000T0000Z-261010T0600Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
158 PM PDT Thu Oct 8 2026
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT
TUESDAY...
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH FRIDAY
EVENING...
* WHAT...For the Beach Hazards Statement, surf of 3 to 5 feet
with sets to 7 feet and dangerous rip currents expected. For
the Coastal Flood Advisory, minor coastal flooding around high
tides expected.
* WHERE...San Diego County Coastal Areas and Orange County
Coastal Areas.
* WHEN...For the Coastal Flood Advisory, until 2 PM PDT Tuesday.
For the Beach Hazards Statement, through Friday evening.
* IMPACTS...Flooding of beach parking lots, boardwalks, and
roads with only isolated road closures expected. Minor coastal
erosion is also expected. Additionally, elevated surf will
lead to strong rip currents and dangerous swimming conditions.
* ADDITIONAL DETAILS...High tides are expected to peak between
6.5 and 7.0 feet during the mornings and evenings.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
High astronomical tides possibly in combination with above normal
surf will likely produce minor flooding of low-lying areas along
the beach such as beach parking lots. Coastal officials should
take the necessary precautionary measures to safeguard their
beaches.
&&
$$
Beach Hazards Statement
Coastal Hazard Message
National Weather Service San Diego CA
158 PM PDT Thu Oct 8 2026
CAZ043-552-090515-
/O.CON.KSGX.CF.Y.0006.000000T0000Z-261013T2100Z/
/O.CON.KSGX.BH.S.0012.000000T0000Z-261010T0600Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
158 PM PDT Thu Oct 8 2026
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT
TUESDAY...
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH FRIDAY
EVENING...
* WHAT...For the Beach Hazards Statement, surf of 3 to 5 feet
with sets to 7 feet and dangerous rip currents expected. For
the Coastal Flood Advisory, minor coastal flooding around high
tides expected.
* WHERE...San Diego County Coastal Areas and Orange County
Coastal Areas.
* WHEN...For the Coastal Flood Advisory, until 2 PM PDT Tuesday.
For the Beach Hazards Statement, through Friday evening.
* IMPACTS...Flooding of beach parking lots, boardwalks, and
roads with only isolated road closures expected. Minor coastal
erosion is also expected. Additionally, elevated surf will
lead to strong rip currents and dangerous swimming conditions.
* ADDITIONAL DETAILS...High tides are expected to peak between
6.5 and 7.0 feet during the mornings and evenings.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
High astronomical tides possibly in combination with above normal
surf will likely produce minor flooding of low-lying areas along
the beach such as beach parking lots. Coastal officials should
take the necessary precautionary measures to safeguard their
beaches.
&&
$$
Air Quality Alert
AZC013-090400-
Air Quality Alert
Relayed by National Weather Service Phoenix AZ
848 AM MST Thu Oct 8 2026
...OZONE HIGH POLLUTION ADVISORY FOR MARICOPA COUNTY INCLUDING THE
PHOENIX METRO AREA TODAY...
The Arizona Department of Environmental Quality (ADEQ) has issued an
Ozone High Pollution Advisory for the Phoenix Metro Area today
(Thursday).
This means that forecast weather conditions combined with existing
ozone levels are expected to result in local maximum 8-hour ozone
concentrations that pose a health risk. Adverse health effects
increase as air quality deteriorates.
Ozone is an air contaminant which can cause breathing difficulties
for children, older adults, as well as persons with respiratory
problems. A decrease in physical activity is recommended.
You are urged to car pool, telecommute or use mass transit.
The use of gasoline-powered equipment should be reduced or done late
in the day.
For details on this High Pollution Advisory, visit the ADEQ internet
site at www.azdeq.gov/forecast/phoenix or call 602-771-2300.
$$
Hydrologic Outlook
Hydrologic Outlook
UTC001-003-005-007-011-013-015-017-021-023-025-027-029-031-033-
035-039-041-043-045-049-051-053-055-057-WYC041-100000-
Hydrologic Outlook
National Weather Service Salt Lake City UT
313 PM MDT Thu Oct 8 2026
...Moderate to heavy rainfall could bring areas of flooding...
The remnants of Tropical Storm Rachel will merge with a fall-like
storm system over the western United States, bringing moderate to
heavy rainfall and a resulting threat of flooding. Widespread
rainfall of 1 to 3 inches is expected, locally in excess of 3
inches, particularly across south aspects of southern Utah
mountains, between late Saturday and Monday morning.
Expect many area waterways including streams, rivers, normally
dry washes, creeks, and slot canyons to have rising, fast flows by
Sunday evening. Current forecasts do not bring any rivers to
flood stage, but this will be monitored as the fine details of
heavy rain bands become more confident. Those with activities near
rivers, streams, creeks and recent burn scars should closely
monitor the forecast over the next several days. Those with
outdoor plans Sunday onward that include any travel near waterways
across Utah should consider alternate plans.
Scattered showers and thunderstorms will remain possible through
at least Wednesday. While the rainfall rates with these additional
rounds of precipitation will generally be lower, areas that
receive significant precipitation during the weekend will be extra
sensitive to any additional rainfall.
$$
Hydrologic Outlook
NVC007-011-015-023-033-091230-
Hydrologic Outlook
National Weather Service Elko NV
146 PM PDT Thu Oct 8 2026
A low pressure system over the Pacific Northwest will drop southward
into Northern California Sunday. This storm system will draw abundant
atmospheric moisture associated with Tropical Storm Rachel northward
into Eastern Nevada, resulting in the likelihood of rain Sunday and
Sunday night. Slow storm motions and/or training cells may produce
heavy rainfall and localized flooding.
Of particular concern are recent, large burn scars, including the
Ward fire south of Ely and the Oxley fire north of Wells. Numerous
smaller burn scare from this fire season also remain vulnerable to
flash flooding and debris flow.
Residents near burn scars should have multiple ways to receive Flash
Flood Warning and be prepared to act quickly. Travelers and
recreationists should also remain alert and consider alternate plans.
$$
BS
