Extreme Heat Warning
URGENT - WEATHER MESSAGE
National Weather Service Flagstaff AZ
1242 AM MST Tue Jul 15 2025
AZZ006-160200-
/O.EXT.KFGZ.XH.W.0003.000000T0000Z-250716T0200Z/
Grand Canyon Country-
Including the cities of Grand Canyon Village, North Rim, and
Supai
1242 AM MST Tue Jul 15 2025
...EXTREME HEAT WARNING NOW IN EFFECT UNTIL 7 PM MST THIS EVENING
BELOW 4000 FEET...
* WHAT...Dangerously hot conditions below 4000 feet, with daytime
temperatures ranging from 102 degrees at Havasupai Gardens, to 110
degrees at Phantom Ranch.
* WHERE...Lower elevations of the Grand Canyon.
* WHEN...Until 7 PM MST this evening.
* 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.
&&
$$
Humphreys
Red Flag Warning
URGENT - FIRE WEATHER MESSAGE
National Weather Service Las Vegas NV
1003 AM PDT Tue Jul 15 2025
NVZ461-462-160500-
/O.CON.KVEF.FW.W.0008.250715T1800Z-250716T0500Z/
Lincoln County/Ely Dispatch-Nye County Deserts/Las Vegas Dispatch-
1003 AM PDT Tue Jul 15 2025
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING FOR STRONG WINDS AND LOW HUMIDITY FOR PORTIONS OF LINCOLN
COUNTY...
* AFFECTED AREA...In Nevada...Fire weather zone 461.
* TIMING...from 11 am PDT until 10 pm PDT Tuesday.
* WIND...South winds 15 to 25 mph with gusts to around 35 mph.
* HUMIDITY...7 to 14 percent.
* IMPACTS...any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Red Flag Warning means that critical fire weather conditions
are either occurring now...or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.
&&
MW
$$
URGENT - FIRE WEATHER MESSAGE
National Weather Service Salt Lake City UT
707 AM MDT Tue Jul 15 2025
UTZ492-493-495>498-160115-
/O.CON.KSLC.FW.W.0006.250715T1800Z-250716T0500Z/
Central Utah West Desert-Central Utah Mountains-
Color Country West Desert-Color Country Mountains-Mojave Desert-
Grand Staircase-
707 AM MDT Tue Jul 15 2025
...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 11 PM
MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONES 492, 493, 495, 496, 497, AND 498...
* AFFECTED AREA...Fire Weather Zone 492 Central Utah West
Desert, Fire Weather Zone 493 Central Utah Mountains, Fire
Weather Zone 495 Color Country West Desert, Fire Weather Zone
496 Color Country Mountains, Fire Weather Zone 497 Mojave
Desert and Fire Weather Zone 498 Grand Staircase.
* WINDS...Southwest 10 to 20 mph with gusts up to 30 mph.
* RELATIVE HUMIDITY...As low as 9 percent.
* IMPACTS...Critical fire weather conditions are expected. Any
new fire starts or existing fires may spread rapidly.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Red Flag Warning means that critical fire weather conditions
are expected or ongoing. A combination of strong winds...low
relative humidity...and warm temperatures can contribute to
extreme fire behavior.
&&
$$
Flood Watch
Flood Watch
National Weather Service Tucson AZ
329 AM MST Tue Jul 15 2025
AZZ502>504-507-508-512>515-160600-
/O.CON.KTWC.FA.A.0003.250715T1900Z-250716T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Tohono O`odham Nation-Upper Santa Cruz River Valley/Altar Valley-
Tucson Metro Area-Upper San Pedro River Valley-Eastern Cochise
County below 5000 feet-Chiricahua Mountains-Dragoon and Mule and
Huachuca and Santa Rita Mountains-Catalina and Rincon Mountains-
Baboquivari Mountains-
Including the cities of Willcox, Douglas, Kitt Peak, Sells,
Bisbee, Canelo Hills, Vail, Marana, Madera Canyon, Mount Lemmon,
Benson, Summerhaven, Sierra Vista, Nogales, Chiricahua NM, Green
Valley, and Tucson
329 AM MST Tue Jul 15 2025
...FLOOD WATCH REMAINS IN EFFECT FROM NOON MST TODAY THROUGH THIS
EVENING...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of Southeast Arizona, including the following
areas, Baboquivari Mountains, Catalina and Rincon Mountains,
Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita
Mountains, Eastern Cochise County below 5000 feet, Tohono O`odham
Nation, Tucson Metro Area, Upper San Pedro River Valley and Upper
Santa Cruz River Valley/Altar Valley.
* WHEN...From noon MST today through this evening.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Low-water
crossings may be flooded.
* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
TGD
Special Weather Statement
Special Weather Statement
National Weather Service Salt Lake City UT
1240 PM MDT Tue Jul 15 2025
UTZ125-126-151915-
Upper Sevier River Valleys UT-Southern Mountains UT-
1240 PM MDT Tue Jul 15 2025
...A strong thunderstorm will impact portions of southwestern
Garfield County through 115 PM MDT
...
At 1239 PM MDT, Doppler radar was tracking a strong thunderstorm over
Hatch, or 33 miles east of Cedar City, moving east at 10 mph.
HAZARD...Wind gusts up to 50 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Hatch and Hillsdale.
This includes the following highways...
US Route 89 between mile markers 113 and 124.
Utah Route 12 near mile marker 0.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3763 11253 3774 11253 3776 11236 3758 11235
TIME...MOT...LOC 1839Z 268DEG 8KT 3765 11247
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
$$
JW
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Grand Junction CO
428 AM MDT Tue Jul 15 2025
COZ001>014-017>023-UTZ022>025-027>029-161030-
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-
428 AM MDT Tue Jul 15 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.
Hot and dry conditions keep temperatures trending 5 degrees above
average. Scattered showers and isolated thunderstorms on the terrain
increase this afternoon with dry lightning and gusty outflows
possible under collapsing storms. Wildfire smoke will remain visible
across the central and southern areas of the CWA.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Hot and dry conditions will continue through the week. Afternoon
showers and storms on terrain will remain in the forecast,
increasing in coverage through the latter half of the week.
Increasing moisture will limit chances for dry lightning later in
the week and bring increased chances for wetting rain across the
higher terrain. Wildfire smoke will remain visible for much of
eastern Utah and western Colorado though the wetting rains later in
the week could help diminish smoke. Conditions dry out Sunday into
early next week.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
