WWA Summary for All Issued by LKN

Extreme Heat Warning

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
101 PM PDT Thu Mar 19 2026

AZZ001>003-036-CAZ522>527-NVZ016-017-020>022-201015-
/O.CON.KVEF.XH.W.0001.000000T0000Z-260323T0300Z/
Northwest Plateau-Lake Havasu and Fort Mohave-Northwest Deserts-
Lake Mead National Recreation Area-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-Lake Mead National Recreation Area-Southern Clark County-
Including the cities of Cal-Nev-Ari, Mesquite, Valentine, Golden
Valley, Wikieup, Mountain Pass, Pipe Spring National Monument,
Boulder City, Fort Irwin, Overton, Henderson, Lake Havasu City,
Mohave Valley, Desert Hills, Topock, Pahrump, North Las Vegas,
Laughlin, Bullhead City, Needles, Mitchell Caverns, Yucca,
Kingman, Moapa, Baker, Amargosa Valley, Las Vegas, Hoover Dam,
Indian Springs, Barstow, Western Grand Canyon, Oatman, Shoshone,
Vidal Junction, Colorado City, Twentynine Palms, Primm, Tuweep,
Dolan Springs, Furnace Creek, Stovepipe Wells, Desert Rock,
Daggett, Morongo Valley, Yucca Valley, Mt Trumbull, and
Searchlight
101 PM PDT Thu Mar 19 2026 /101 PM MST Thu Mar 19 2026/

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT /8 PM MST/
SUNDAY...

* WHAT...Dangerously hot temperatures climbing to near-30 degrees
  above seasonal normals.

* WHERE...Portions of northwest Arizona, southeast California, and
  southern Nevada.

* WHEN...Until 8 PM PDT /8 PM MST/ Sunday.

* IMPACTS...Heat-related illnesses increase significantly during
  extreme heat events.

* ADDITIONAL DETAILS...Extreme early-season heat coupled with high
  tourism rates will make this heat very dangerous, particularly for
  those not acclimated to the heat and/or traveling from cooler
  climates. Numerous daily and monthly heat records are in jeopardy
  through at least Sunday.

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.

&&

$$

Red Flag Warning

URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
1257 PM PDT Thu Mar 19 2026


ORZ624-625-200300-
/O.CON.KMFR.FW.W.0001.260319T2100Z-260320T0300Z/
Klamath Basin and the Fremont-Winema National Forest-
South Central Oregon Desert including the BLM Land in Eastern
Lake and Western Harney Counties-
1257 PM PDT Thu Mar 19 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING
FOR STRONG GUSTY WIND AND LOW RH FOR FIRE WEATHER ZONES 624 AND
625...

* IMPACTS...Any fires that develop will likely spread rapidly.

* AFFECTED AREA...Fire weather zones 625 and eastern 624,
  including Fort Rock, Silver Lake, Summer Lake, Paisley, Adel,
  Christmas Valley, the higher terrain of Winter Rim, the
  Warner and Hart mountains, and other exposed terrain.

* WIND...Southwest 15 to 20 mph, with gusts up to 30 mph.
  Isolated gusts of 40 mph are possible.

* HUMIDITY...8 to 15 percent.

* DETAILED URL...View the hazard area in detail at
  https://weather.gov/wrh/hazards?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Follow all fire restrictions. You can find your county`s
emergency sign up form as well as links to fire restrictions at
weather.gov/medford/wildfire. One less spark, one less wildfire.

Be sure you`re signed up for your county`s emergency alert
system. Familiarize yourself with your emergency plan and make
sure you listen to emergency services. Visit ready.gov/plan for
more information.

A Red Flag Warning is issued when we identify weather conditions
that promote rapid spread of fire which may become life-
threatening. This does not mean there is a fire. These conditions
are either occurring now or will begin soon. It is important to
have multiple ways to receive information from authorities.

&&

$$


Visit us at www.weather.gov/Medford

Heat Advisory

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
101 PM PDT Thu Mar 19 2026

CAZ520-NVZ014-015-201015-
/O.CON.KVEF.HT.Y.0001.000000T0000Z-260322T0300Z/
Owens Valley-Esmeralda and Central Nye County-Lincoln County-
Including the cities of Lone Pine, Olancha, Independence, Beatty,
Goldfield, Panaca, Rachel, Silver Peak, Pioche, Alamo, Hiko,
Caliente, Bishop, and Dyer
101 PM PDT Thu Mar 19 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT SATURDAY...

* WHAT...Hot temperatures climbing to near-30 degrees above seasonal
  normals.

* WHERE...In California, Owens Valley. In Nevada, Esmeralda and
  Central Nye County and Lincoln County.

* WHEN...Until 8 PM PDT Saturday.

* IMPACTS...Heat-related illnesses increase significantly during
  extreme heat events.

* ADDITIONAL DETAILS...Extreme early-season heat coupled with high
  tourism rates will make this heat very dangerous, particularly for
  thMSose not acclimated to the heat and/or traveling from cooler
  climates. Numerous daily and monthly heat records are in jeopardy
  through at least Sunday.

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.

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.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/lasvegas

KEG