Severe Thunderstorm Warning
Severe Weather Statement
National Weather Service Boise ID
914 PM MDT Thu Jul 23 2026
IDC001-015-240330-
/O.CON.KBOI.SV.W.0040.000000T0000Z-260724T0330Z/
Ada ID-Boise ID-
914 PM MDT Thu Jul 23 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM MDT
FOR NORTHEASTERN ADA AND SOUTHWESTERN BOISE COUNTIES...
At 914 PM MDT, a severe thunderstorm was located near Bogus Basin Ski
Area, or 9 miles southwest of Idaho City, moving north at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe thunderstorm will remain over mainly rural areas of
northeastern Ada and southwestern Boise Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4372 11583 4360 11593 4361 11595 4358 11597
4354 11597 4352 11598 4358 11612 4388 11610
TIME...MOT...LOC 0314Z 202DEG 36KT 4375 11598
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Flash Flood Warning
Flash Flood Warning
IDC001-240445-
/O.NEW.KBOI.FF.W.0004.260724T0310Z-260724T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Boise ID
910 PM MDT Thu Jul 23 2026
The National Weather Service in Boise has issued a
* Flash Flood Warning for...
Northeastern Ada County in southwestern Idaho...
* Until 1045 PM MDT.
* At 910 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to 0.5 inches of rain have
fallen. The expected rainfall rate is 2 to 4 inches in 1 hour.
Flash flooding is ongoing or expected to begin shortly.
Excessive rainfall over the area will result in debris flows moving
through the Claremont and Valley burn scars. The debris flows can
consist of rock, mud, vegetation and other loose materials.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Eastern Boise and Aldape Summit.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move away from recently burned areas. Life-threatening flooding of
creeks, roads and normally dry washes is likely. The heavy rains
will likely trigger rockslides, mudslides and debris flows in steep
terrain, especially in and around these areas.
&&
LAT...LON 4363 11604 4362 11603 4357 11604 4353 11608
4357 11613 4361 11619 4363 11618 4367 11614
4368 11611
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...2-4 INCHES IN 1 HOUR
$$
JM
Severe Weather Statement
Severe Weather Statement
National Weather Service Boise ID
914 PM MDT Thu Jul 23 2026
IDC001-015-240330-
/O.CON.KBOI.SV.W.0040.000000T0000Z-260724T0330Z/
Ada ID-Boise ID-
914 PM MDT Thu Jul 23 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM MDT
FOR NORTHEASTERN ADA AND SOUTHWESTERN BOISE COUNTIES...
At 914 PM MDT, a severe thunderstorm was located near Bogus Basin Ski
Area, or 9 miles southwest of Idaho City, moving north at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe thunderstorm will remain over mainly rural areas of
northeastern Ada and southwestern Boise Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4372 11583 4360 11593 4361 11595 4358 11597
4354 11597 4352 11598 4358 11612 4388 11610
TIME...MOT...LOC 0314Z 202DEG 36KT 4375 11598
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Red Flag Warning
URGENT - FIRE WEATHER MESSAGE
National Weather Service Pendleton OR
748 PM PDT Thu Jul 23 2026
...HIGH ABUNDANT LIGHTNING RISK WITH THUNDERSTORMS TODAY... ...
WINDY AND BREEZY WITH CRITICAL RH FRIDAY AND SATURDAY...
The upper level low offshore will shift to the east just enough
to allow for monsoonal moisture to move into the region.
Instability will accompany the moisture and allow for increased
chances of isolated to scattered thunderstorms across the eastern
mountains. Brief heavy downpours, gusty outflow winds in excess
of 45 mph, small hail, and frequent lightning will be possible. A
strong to briefly severe thunderstorm cannot be ruled out into
the early evening.
Friday the upper level low will eject into the region bringing
windy conditions to many of the Cascade Gaps as well as central
OR. Humidities both Friday and Saturday will be critical.
ORZ693-WAZ693-240400-
/O.CON.KPDT.FW.W.0012.000000T0000Z-260724T0400Z/
Canyon Grasslands of Wallowa County-
Southeast Washington Grande Ronde Valley-
748 PM PDT Thu Jul 23 2026
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING
FOR ABUNDANT LIGHTNING FOR FIRE WEATHER ZONES OR693 AND WA693...
* AFFECTED AREA...Fire Weather Zones 693 Canyon Grasslands of
Wallowa County and 693 Southeast Washington Grande Ronde
Valley.
* TIMING...Until 9 PM PDT this evening.
* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
* THUNDERSTORMS...Isolated to scattered dry thunderstorms
Thursday after 1200.
* OUTFLOW WINDS...Gusts from 25-45 mph
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.
&&
$$
URGENT - FIRE WEATHER MESSAGE
National Weather Service Boise ID
212 PM MDT Thu Jul 23 2026
...SCATTERED THUNDERSTORMS ON THURSDAY ACROSS FAR EASTERN OREGON
AND WESTERN IDAHO...
...HOT, DRY, AND WINDY FRIDAY AND SATURDAY...
.Scattered thunderstorms are expected to develop across far
eastern Oregon and western Idaho this afternoon. Storms will be
capable of frequent lightning, gusty outflow winds, and only
sporadic wetting rains. While the thunderstorm threat will end by
Friday and Saturday, hot, dry, and windy conditions will develop,
primarily across southeast Oregon and the higher terrain of
southwest Idaho. The driest and windiest day at this time is
expected on Saturday.
IDZ401-402-ORZ670-671-240415-
/O.UPG.KBOI.FW.A.0006.260724T2000Z-260726T0300Z/
/O.NEW.KBOI.FW.W.0015.260724T2000Z-260726T0300Z/
Western Payette National Forest-Eastern Payette National Forest-
Burns BLM-Steens Mountain-
212 PM MDT Thu Jul 23 2026 /112 PM PDT Thu Jul 23 2026/
...RED FLAG WARNING IN EFFECT FROM 2 PM MDT /1 PM PDT/ FRIDAY TO
9 PM MDT /8 PM PDT/ SATURDAY FOR WINDS AND LOW RELATIVE
HUMIDITIES FOR WESTERN PAYETTE NATIONAL FOREST...EASTERN PAYETTE
NATIONAL FOREST...BURNS BLM AND STEENS MOUNTAIN...WHICH ARE FIRE
WEATHER ZONES 401...402...670 AND 671...
The National Weather Service in Boise has issued a Red Flag
Warning for winds and low relative humidities, which is in effect
from 2 PM MDT /1 PM PDT/ Friday to 9 PM MDT /8 PM PDT/ Saturday.
The Fire Weather Watch is no longer in effect.
* AFFECTED AREA...In Idaho, Fire Weather Zones 401 Western
Payette National Forest and 402 Eastern Payette National
Forest. In Oregon, Fire Weather Zones 670 Burns BLM and 671
Steens Mountain.
* TIMING...From 2 PM MDT /1 PM PDT/ Friday to 9 PM MDT /8 PM
PDT/ Saturday.
* WINDS...Southwest 10 to 20 mph with gusts up to 35 mph.
* RELATIVE HUMIDITY...6 to 18 percent.
* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will occur shortly.
&&
$$
URGENT - FIRE WEATHER MESSAGE
National Weather Service Boise ID
212 PM MDT Thu Jul 23 2026
...SCATTERED THUNDERSTORMS ON THURSDAY ACROSS FAR EASTERN OREGON
AND WESTERN IDAHO...
...HOT, DRY, AND WINDY FRIDAY AND SATURDAY...
.Scattered thunderstorms are expected to develop across far
eastern Oregon and western Idaho this afternoon. Storms will be
capable of frequent lightning, gusty outflow winds, and only
sporadic wetting rains. While the thunderstorm threat will end by
Friday and Saturday, hot, dry, and windy conditions will develop,
primarily across southeast Oregon and the higher terrain of
southwest Idaho. The driest and windiest day at this time is
expected on Saturday.
IDZ423-ORZ672>675-240415-
/O.UPG.KBOI.FW.A.0006.260724T2000Z-260726T0300Z/
/O.NEW.KBOI.FW.W.0015.260724T2000Z-260726T0300Z/
/O.CON.KBOI.FW.W.0014.000000T0000Z-260724T0300Z/
Owyhee Mountains-Southern Grasslands-Central Canyonlands-
Northwestern Vale BLM-Baker Valley-
212 PM MDT Thu Jul 23 2026 /112 PM PDT Thu Jul 23 2026/
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT /8 PM PDT/
THIS EVENING FOR LIGHTNING FOR OWYHEE MOUNTAINS...SOUTHERN
GRASSLANDS...CENTRAL CANYONLANDS... NORTHWESTERN VALE BLM AND
BAKER VALLEY...WHICH ARE FIRE WEATHER ZONES 423...672...673...674
AND 675...
...RED FLAG WARNING IN EFFECT FROM 2 PM MDT /1 PM PDT/ FRIDAY TO
9 PM MDT /8 PM PDT/ SATURDAY FOR WINDS AND LOW RELATIVE
HUMIDITIES FOR OWYHEE MOUNTAINS...SOUTHERN GRASSLANDS...CENTRAL
CANYONLANDS...NORTHWESTERN VALE BLM AND BAKER VALLEY...WHICH ARE
FIRE WEATHER ZONES 423...672...673...674 AND 675...
The National Weather Service in Boise has issued a Red Flag
Warning for winds and low relative humidities, which is in effect
from 2 PM MDT /1 PM PDT/ Friday to 9 PM MDT /8 PM PDT/ Saturday.
The Fire Weather Watch is no longer in effect.
* AFFECTED AREA...In Idaho, Fire Weather Zone 423 Owyhee
Mountains. In Oregon, Fire Weather Zones 672 Southern
Grasslands, 673 Central Canyonlands, 674 Northwestern Vale BLM
and 675 Baker Valley.
* TIMING...For the first Red Flag Warning, until 9 PM MDT /8 PM
PDT/ this evening. For the second Red Flag Warning, from 2 PM
MDT /1 PM PDT/ Friday to 9 PM MDT /8 PM PDT/ Saturday.
* THUNDERSTORMS...Scattered coverage with abundant lightning.
* OUTFLOW WINDS...Gusty erratic winds up to 50 mph.
* WINDS...For the second Red Flag Warning, Southwest 10 to 20 mph
with gusts up to 30 mph.
* RELATIVE HUMIDITY...For the second Red Flag Warning, 6 to 12
percent.
* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will occur shortly.
&&
$$
Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Billings MT
1252 PM MDT Thu Jul 23 2026
MTZ040-064-065-241900-
/O.NEW.KBYZ.HT.Y.0001.260724T1500Z-260727T0300Z/
Northern Park-Paradise Valley-Livingston Area-
Including the locations of Chico, Clyde Park, Emigrant, Pine Creek,
Livingston, Miner, Corwin Springs, and Pray
1252 PM MDT Thu Jul 23 2026
...HEAT ADVISORY IN EFFECT FROM 9 AM FRIDAY TO 9 PM MDT SUNDAY...
* WHAT...Hot conditions with high temperatures of 94 to 101.
* WHERE...Livingston Area, Northern Park, and Paradise Valley.
* WHEN...From 9 AM Friday to 9 PM MDT Sunday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Warm nighttime temperatures will provide
limited relief.
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.
&&
$$
Additional graphics for this hazard can be found at
http://www.weather.gov/billings
Lester
URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
1251 PM MDT Thu Jul 23 2026
MTZ303-304-309-316-319-321-323>326-328-241200-
/O.NEW.KTFX.HT.Y.0003.260724T1800Z-260727T0300Z/
Eastern Glacier, Western Toole, and Central Pondera-Eastern Toole
and Liberty-Eastern Pondera and Eastern Teton-Gates of the
Mountains-Helena Valley-Meagher County Valleys-Canyon Ferry Area-
Missouri Headwaters-Madison River Valley-Gallatin Valley-
Beaverhead and Western Madison below 6000ft-
Including the cities of Ethridge, Joplin, Whitehall, Cameron, Dillon,
Ringling, Harrison, Pony, White Sulphur Springs, Wolf Creek,
Townsend, McAllister, Canyon Creek, Gallatin Gateway, Glen, Craig,
Lothair, Helena, Checkerboard, Ennis, Martinsdale, Willow Creek,
Bannack, Ledger, Santa Rita, Shelby, Norris, Toston, Galata, Jeffers,
Devon, Whitlash, Cut Bank, Chester, Bozeman, Conrad, Three Forks,
Waterloo, Winston, and Brady
1251 PM MDT Thu Jul 23 2026
...HEAT ADVISORY IN EFFECT FROM NOON FRIDAY TO 9 PM MDT SUNDAY...
* WHAT...High temperatures up to 100F expected.
* WHERE...Portions of central, north central, and southwest Montana.
* WHEN...From noon Friday to 9 PM MDT Sunday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
AM
URGENT - WEATHER MESSAGE
National Weather Service Boise ID
1144 AM MDT Thu Jul 23 2026
IDZ012-014-016-033-ORZ063-064-241800-
/O.CON.KBOI.HT.Y.0005.260723T2000Z-260726T0300Z/
Lower Treasure Valley-Upper Treasure Valley-Western Magic Valley-
Upper Weiser River-Malheur County-Oregon Lower Treasure Valley-
Including the cities of Glendale, Indian Valley, Mesa, Cambridge,
Malheur City, Boise, Goodrich, Nampa, Nyssa, Caldwell, Council,
Ontario, Twin Falls, and Fruitvale
1144 AM MDT Thu Jul 23 2026 /1044 AM PDT Thu Jul 23 2026/
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT /8 PM PDT/
SATURDAY...
* WHAT...Temperatures up to 107 expected, hottest Friday afternoon.
* WHERE...Portions of south central and southwest Idaho and
southeast Oregon.
* WHEN...Until 9 PM MDT /8 PM PDT/ Saturday.
* IMPACTS...Hot temperatures may cause heat illnesses, especially
for the young, elderly, and animals.
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.
&&
$$
LC
URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
1045 AM MDT Thu Jul 23 2026
IDZ051>057-241200-
/O.NEW.KPIH.HT.Y.0003.260724T1900Z-260725T0300Z/
Shoshone/Lava Beds-Arco/Mud Lake Desert-Upper Snake River Plain-
Lower Snake River Plain-Eastern Magic Valley-Southern
Hills/Albion Mountains-Raft River Region-
Including the cities of Malta, Craters of the Moon NM, Rupert,
Blackfoot, Rockland, Pocatello, Shoshone, Oakley, Burley, Fort
Hall, Shelley, Heyburn, Rexburg, Holbrook, Idaho Falls, St.
Anthony, Mud Lake, American Falls, INL, Carey, Almo, Albion, and
Richfield
1045 AM MDT Thu Jul 23 2026
...HEAT ADVISORY IN EFFECT FROM 1 PM TO 9 PM MDT FRIDAY...
* WHAT...Temperatures 95 to 100 degrees expected across valley
locations within the advised areas.
* WHERE...Eastern Magic Valley, Shoshone/Lava Beds, Arco/Mud Lake
Desert, Lower Snake River Plain, Raft River Region, Southern
Hills/Albion Mountains, and Upper Snake River Plain.
* WHEN...From 1 PM to 9 PM MDT Friday.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
Visit weather.gov/pocatello for more information.
McKaughan
URGENT - WEATHER MESSAGE
National Weather Service Elko NV
820 AM PDT Thu Jul 23 2026
NVZ030-031-033-036-038-241700-
/O.NEW.KLKN.HT.Y.0003.260724T1700Z-260725T0400Z/
Humboldt-Northern Elko-Southeastern Elko-Northern Lander and
Northern Eureka-Southwest Elko-
Including the cities of Jarbidge, Crescent Valley, Golconda,
Charleston, Jiggs, Palisade, Tuscarora, Ryndon, Valmy, Owyhee,
Argenta, Battle Mountain, Emigrant Pass, Dunphy, Lee, Winnemucca,
Elko, Beowawe, Gibbs Ranch, Midas, South Fork, West Wendover,
Mountain City, Dufferena, Spring Creek, and Lamoille
820 AM PDT Thu Jul 23 2026
...A HEAT ADVISORY IS IN EFFECT FROM 10 AM PDT FRIDAY MORNING UNTIL
9 PM PDT FRIDAY EVENING...
* WHAT...High temperatures 99 to 104 degrees in the valleys expected.
* WHERE...Northern Nevada.
* WHEN...From 10 AM PDT Friday morning until 9 PM PDT Friday evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, remain in an air-conditioned room, stay out
of the sun, and check on relatives and neighbors.
&&
$$
BS
Extreme Heat Watch
URGENT - WEATHER MESSAGE
National Weather Service Salt Lake City UT
1203 PM MDT Thu Jul 23 2026
UTZ103>106-240915-
/O.CON.KSLC.XH.A.0002.260725T1800Z-260728T0600Z/
Eastern Box Elder County-Northern Wasatch Front-Salt Lake Valley-
Utah Valley-
Including the following locations - Sandy, Lehi, Brigham City,
Salt Lake City, Ogden, Bountiful, Payson, Snowville, West Jordan,
and Provo
1203 PM MDT Thu Jul 23 2026
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH MONDAY EVENING...
* WHAT...Dangerously hot conditions with temperatures up to 102
possible.
* WHERE...The Wasatch Front.
* WHEN...From Saturday afternoon through Monday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
Monitor the latest forecasts and warnings for updates.
&&
$$
For more information from the National Weather Service visit
https://weather.gov/saltlakecity.
For information on potential travel impacts visit
http://udottraffic.utah.gov
Wessler
URGENT - WEATHER MESSAGE
National Weather Service Salt Lake City UT
1203 PM MDT Thu Jul 23 2026
UTZ107-240915-
/O.EXA.KSLC.XH.A.0002.260725T1800Z-260728T0600Z/
Cache Valley/Utah Portion-
Including the following locations - Logan and Smithfield
1203 PM MDT Thu Jul 23 2026
...EXTREME HEAT WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
MONDAY EVENING...
* WHAT...Hazardous conditions with moderate confidence in daytime
temperatures reaching 97-101 across the Cache Valley. Overnight
minimum temperatures are unlikely to fall below 70 limiting daily
recovery.
* WHERE...Cache Valley/Utah Portion.
* WHEN...From Saturday afternoon through Monday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Confidence is increasing for HeatRisk
reaching Major impact levels over the weekend and into early next
week. Limited cooling overnight is driving the sustained impacts
over multiple days.
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.
&&
$$
Fire Weather Watch
URGENT - FIRE WEATHER MESSAGE
National Weather Service Billings MT
113 PM MDT Thu Jul 23 2026
MTZ123>133-WYZ274-284-241915-
/O.NEW.KBYZ.FW.A.0003.260725T1800Z-260726T0600Z/
Gallatin National Forest-Wheatland County/Sweet Grass County-
Stillwater County-Beartooth Ranger District Custer National Forest-
Golden Valley County/Musselshell county-Yellowstone County-
Crow Indian Reservation/Bighorn Canyon Rec Area-
Northern Rosebud/Northern Treasure Counties-
Northern Cheyenne Indian Reservation/Ashland Ranger District
Custer Natl Forest-Custer County-
Sioux Ranger District Custer National Forest-Sheridan County-
Bighorn National Forest-
113 PM MDT Thu Jul 23 2026
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SATURDAY EVENING...
The National Weather Service in Billings has issued a Fire Weather
Watch...which is in effect from Saturday afternoon through
Saturday evening.
* IMPACTS: Low humidities, hot temperatures, and high-based
thunderstorms with gusty and erratic outflow winds may create
erratic fire behavior and new fire starts.
* AFFECTED AREA:
In North Central WY Fire Zones...274...284.
In South Central MT Fire Zones...123...124...125...126...127
128...129.
In Southeast MT Fire Zones...130...131...132.
In Southeast MT and Northwest SD Fire Zone...133.
* COUNTIES AFFECTED:
In Central MT...Golden Valley...Musselshell...Wheatland.
In North Central WY...Big Horn...Johnson...Sheridan...Washakie.
In Northwest SD...Harding.
In South Central MT...Big Horn...Carbon...Park...Stillwater
Sweet Grass...Yellowstone.
In Southeast MT...Carter...Custer...Fallon...Powder River
Rosebud...Treasure.
In Southwest MT...Gallatin.
* WIND: Southwest 10 to 20 mph with gusts to 25 mph.
* THUNDERSTORMS: Scattered afternoon and evening thunderstorms will
produce gusty and erratic winds, and spotty rainfall.
* HUMIDITY: Minimums of 12 to 19 percent.
* TEMPERATURES: Highs of 99 to 107 below 5000 feet, hottest in the
east.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible Red
Flag Warnings.
&&
$$
http://weather.gov/Billings
Special Weather Statement
Special Weather Statement
National Weather Service Missoula MT
917 PM MDT Thu Jul 23 2026
MTZ005-006-043-240345-
Missoula/Bitterroot Valleys MT-Bitterroot/Sapphire Mountains MT-
Potomac/Seeley Lake Region MT-
917 PM MDT Thu Jul 23 2026
...A LINE OF STRONG THUNDERSTORMS WILL IMPACT SOUTH CENTRAL
MISSOULA...NORTHEASTERN RAVALLI AND WESTERN GRANITE COUNTIES UNTIL
945 PM MDT...
At 917 PM MDT, Doppler radar was tracking a line of strong
thunderstorms extending from 7 miles west of Lolo to 12 miles
northeast of Conner, or extending from 12 miles southwest of Missoula
to 17 miles southeast of Hamilton, moving east at 40 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Missoula, Hamilton, Lolo, Stevensville, Victor, Woodside, Florence,
Bonner-West Riverside, East Missoula, Skalkaho Pass, Bell Crossing,
Corvallis, Grantsdale and Turah.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the weather situation closely and be alert for threatening
weather conditions.
&&
LAT...LON 4661 11433 4665 11432 4667 11436 4676 11440
4678 11432 4676 11420 4678 11412 4683 11413
4691 11381 4612 11344 4603 11348 4594 11403
TIME...MOT...LOC 0316Z 253DEG 34KT 4678 11425 4649 11413 4605 11393
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
$$
Special Weather Statement
National Weather Service Missoula MT
905 PM MDT Thu Jul 23 2026
IDZ006>008-240330-
Orofino/Grangeville Region ID-Southern Clearwater Mountains ID-
Lower Hells Canyon/Salmon River Region ID-
805 PM PDT Thu Jul 23 2026
...A STRONG THUNDERSTORM WILL IMPACT WEST CENTRAL IDAHO COUNTY UNTIL
830 PM PDT...
At 805 PM PDT, Doppler radar was tracking a strong thunderstorm 5
miles southeast of White Bird, or 14 miles south of Grangeville,
moving northeast at 40 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
White Bird.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the weather situation closely and be alert for threatening
weather conditions.
&&
LAT...LON 4578 11634 4599 11594 4581 11575 4562 11618
TIME...MOT...LOC 0305Z 234DEG 33KT 4573 11620
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
$$
Special Weather Statement
National Weather Service Boise ID
844 PM MDT Thu Jul 23 2026
IDZ013-014-240330-
Upper Treasure Valley ID-Boise Mountains ID-
844 PM MDT Thu Jul 23 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN ADA AND
SOUTHWESTERN BOISE COUNTIES THROUGH 930 PM MDT...
At 844 PM MDT, Doppler radar was tracking a strong thunderstorm near
Blacks Creek Reservoir, or near Boise, moving north at 35 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Areas of blowing dust reducing
visibility.
This strong thunderstorm will be near...
Boise and Garden City around 850 PM MDT.
Bogus Basin Ski Area around 910 PM MDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4397 11626 4372 11583 4340 11608 4348 11639
4381 11630 4381 11628 4390 11628
TIME...MOT...LOC 0244Z 192DEG 31KT 4352 11621
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
$$
Air Quality Alert
ORC013-017-023-031-049-059-061-063-069-241600-
Crook-Deschutes-Grant-Jefferson-Morrow-Umatilla-Union-Wallowa-
Wheeler-
Including the cities of Prineville, Post, Paulina, Bend, Redmond,
Sunriver, Sisters, La Pine, Brothers, John Day, Monument, Dayville,
Long Creek, Seneca, Madras, Warm Springs, Culver, Boardman, Heppner,
Lexington, Ione, Irrigon, Hermiston, Milton-Freewater, Pendleton,
Athena, Pilot Rock, Stanfield, Umatilla, Ukiah, Helix, La Grande,
Elgin, Union, North Powder, Enterprise, Joseph, Wallowa..Imnaha,
Troy, Lostine, Fossil, Spray, and Mitchell
333 PM PDT Thu Jul 23 2026
...AIR QUALITY ADVISORY IN EFFECT UNTIL NOON PDT FRIDAY...
Oregon Department of Environmental Quality has issued an Air Quality
Advisory until noon PDT Friday.
For the Smoke Air Quality Advisory, wildfires burning in the region
combined with forecasted conditions will cause air quality to reach
unhealthy levels.
Pollutants in smoke can cause burning eyes, runny nose, aggravate
heart and lung diseases, and aggravate other serious health
problems. Limit outdoor activities and keep children indoors if it
is smoky. Please follow medical advice if you have a heart or lung
condition.
For additional information...please visit the Web site at
http://www.oregon.gov/DEQ
$$
