130 

WWUS71 KCAR 240720

NPWCAR



URGENT - WEATHER MESSAGE

National Weather Service Caribou ME

320 AM EDT Mon Aug 24 2026



MEZ001-002-032-241300-

/O.EXA.KCAR.FG.Y.0012.000000T0000Z-260824T1300Z/

Northwest Aroostook-Northeast Aroostook-Northern Washington-

Including the cities of Topsfield, Caribou, Fort Kent, Presque

Isle, Vanceboro, Ashland, Frenchville, Clayton Lake, Van Buren,

Mars Hill, Danforth, Allagash, and Madawaska

320 AM EDT Mon Aug 24 2026



...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING...



* WHAT...Visibility of a quarter-mile or less in dense fog.



* WHERE...Northern Washington, Northeast Aroostook, and Northwest 

  Aroostook Counties.



* WHEN...Until 9 AM EDT this morning.



* IMPACTS...Low visibility could make driving conditions hazardous.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



If driving, slow down, use your headlights, and leave plenty of 

distance ahead of you.



&&



$$



MEZ017-029-030-241300-

/O.CON.KCAR.FG.Y.0012.000000T0000Z-260824T1300Z/

Central Washington-Coastal Hancock-Coastal Washington-

Including the cities of Eastport, Calais, Bucksport, Grand Lake

Stream, Princeton, Ellsworth, Castine, Machias, Cherryfield,

Perry, Orland, Bar Harbor, and Wesley

320 AM EDT Mon Aug 24 2026



...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS 

MORNING...



* WHAT...Visibility of a quarter-mile or less in dense fog.



* WHERE...Coastal Hancock, Coastal Washington, and Central 

  Washington Counties.



* WHEN...Until 9 AM EDT this morning.



* IMPACTS...Low visibility could make driving conditions hazardous.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



If driving, slow down, use your headlights, and leave plenty of 

distance ahead of you.



&&



$$



JS






468 

WWUS75 KFGZ 240746

NPWFGZ



URGENT - WEATHER MESSAGE

National Weather Service Flagstaff AZ

1246 AM MST Mon Aug 24 2026



AZZ006-251515-

/O.NEW.KFGZ.XH.W.0014.260826T1700Z-260829T0300Z/

Grand Canyon Country-

Including the cities of Grand Canyon North Rim, Tusayan, Supai, and

Grand Canyon Village

1246 AM MST Mon Aug 24 2026



...EXTREME HEAT WARNING IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM MST

FRIDAY BELOW 4000 FEET...



* WHAT...Dangerously hot conditions expected below 4000 feet, with

  daytime temperatures ranging from 95 to 101 degrees at Havasupai

  Gardens, to 107 to 112 degrees at Phantom Ranch.



* WHERE...Lower elevations of the Grand Canyon.



* WHEN...From 10 AM Wednesday to 8 PM MST Friday.



* IMPACTS...Most individuals will be at risk for heat-related

  illnesses without effective cooling or adequate hydration,

  especially with prolonged outdoor exposure.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



This warning is reserved for only the hottest days of the year and is

issued when temperatures are expected to rise to dangerous levels.



Day hikers on Bright Angel Trail should descend no farther than 1 1/2

miles from the upper trailhead. Between the hours of 10 AM and 4 PM,

hikers should be out of the canyon or at Havasupai Gardens or Bright

Angel campgrounds, physical activity is discouraged. All hikers

should have adequate gear, including a wide-brimmed hat, sunscreen,

salty snacks, sufficient water, and electrolyte mix. Doubling your

calorie intake helps maintain your energy.



Hike smart.



Take action when you see symptoms of heat exhaustion and heat stroke.

Anyone overcome by heat should be moved to a cool and shaded

location. Heat stroke is an emergency! Call 9 1 1.



&&



$$



AZZ037-251515-

/O.NEW.KFGZ.XH.W.0014.260826T1700Z-260829T0300Z/

Yavapai County Valleys and Basins-

Including the cities of Bagdad, Camp Verde, Cordes Junction, and

Cottonwood

1246 AM MST Mon Aug 24 2026



...EXTREME HEAT WARNING IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM MST

FRIDAY BELOW 4000 FEET...



* WHAT...Dangerously hot conditions, with temperatures around 105 to

  110 expected below 4000 feet.



* WHERE...Yavapai County below 4000 feet; including the Verde Valley

  and Black Canyon City.



* WHEN...From 10 AM Wednesday to 8 PM MST Friday.



* IMPACTS...Most individuals will be at risk for heat-related

  illnesses without effective cooling or adequate hydration,

  especially with prolonged outdoor exposure.



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 action when you see symptoms of heat exhaustion and heat stroke.

Anyone overcome by heat should be moved to a cool and shaded

location. Heat stroke is an emergency! Call 9 1 1.



Stay cool, stay hydrated, stay informed.



&&



$$



Meola