Flash Flood Watch
Flood Watch
National Weather Service Pocatello ID
235 AM MDT Fri Aug 14 2026
IDZ053-150400-
/O.CON.KPIH.FF.A.0005.260814T1800Z-260815T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Upper Snake River Plain-
Including the cities of St. Anthony, Rexburg, and Idaho Falls
235 AM MDT Fri Aug 14 2026
...FLASH FLOOD WATCH FOR THE BIG ROCK BURN SCAR REMAINS IN EFFECT
FROM NOON MDT TODAY THROUGH THIS EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
continue to be possible over the Big Rock burn scar.
* WHERE...The Big Rock Burn Scar near Heise.
* WHEN...From noon MDT today through this evening.
* IMPACTS...Heavy rainfall over the Big Rock burn scar is possible
during the period of the watch. Anyone in or near the Big Rock burn
scar should prepare for potential debris flow moving through the
Big Rock burn scar. Be sure to stay up to date with information
from local authorities. Heavy rainfall could trigger flash flooding
and debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over the Big Rock burn scar, which may lead to flash
flooding and debris flows.
- Some locations that may experience flash flooding include...
Heise.
- 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.
&&
$$
13
Flood Watch
National Weather Service Pocatello ID
235 AM MDT Fri Aug 14 2026
IDZ072-150400-
/O.CON.KPIH.FF.A.0005.260814T1800Z-260816T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sawtooth/Stanley Basin-
Including the cities of Stanley
235 AM MDT Fri Aug 14 2026
...FLASH FLOOD WATCH FOR THE WAPITI BURN SCAR REMAINS IN EFFECT FROM
NOON MDT TODAY THROUGH SATURDAY EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
continue to be possible over the Wapiti burn scar.
* WHERE...Wapiti Burn Scar west of Stanley.
* WHEN...From noon MDT today through Saturday evening.
* IMPACTS...Heavy rainfall over the Wapiti burn scar is possible
during the period of the watch. Anyone in or near the Wapiti burn
scar should prepare for potential debris flow moving through the
Wapiti burn scar. Be sure to stay up to date with information from
local authorities. Heavy rainfall could trigger flash flooding and
debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over the Wapiti burn scar, which may lead to flash
flooding and debris flows.
- Some locations that may experience flash flooding include...
Cape Horn Area and Banner Summit.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Flood Watch
National Weather Service Great Falls MT
1134 PM MDT Thu Aug 13 2026
MTZ327-150000-
/O.EXP.KTFX.FF.A.0005.000000T0000Z-260814T0600Z/
/O.CON.KTFX.FF.A.0006.260814T1900Z-260815T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-
Including the cities of Chief Joseph Pass, Wise River, Wisdom, Dewey,
and Big Hole Pass
1134 PM MDT Thu Aug 13 2026
...FLASH FLOOD WATCH FOR THE PIONEER MOUNTAIN RANGE BURN SCAR AND
HORSE GULCH BURN SCAR WILL EXPIRE AT MIDNIGHT MDT TONIGHT...
The flash flooding threat has ended. Therefore, the Flash Flood Watch
will expire at midnight MDT tonight.
&&
...FLASH FLOOD WATCH FOR THE PIONEER MOUNTAIN BURN SCARS REMAINS IN
EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Bobcat Lakes and Sand Creek burn scars in the
Pioneer Mountains.
* WHERE...The Pioneer Mountain range.
* WHEN...From Friday afternoon through Friday evening.
* IMPACTS...Heavy rainfall over the Pioneer Mountains is possible
during the period of the watch. Residents near the fires and burn
scars should prepare for potential debris flow. Be sure to stay up
to date with information from local authorities. Heavy rainfall
could trigger flash flooding of low-lying areas, and debris flows
in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over the burn scar, which may lead to flash flooding and
debris flows.
- 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.
&&
$$
Flood Watch
National Weather Service Boise ID
937 AM MDT Thu Aug 13 2026
IDZ013-142100-
/O.EXT.KBOI.FF.A.0004.260814T1800Z-260816T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Boise Mountains-
Including the cities of Anderson Dam, Prairie, and Pine
937 AM MDT Thu Aug 13 2026
...FLASH FLOOD WATCH FOR THE WAPITI BURN AREA NOW IN EFFECT FROM
FRIDAY AFTERNOON THROUGH SATURDAY EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
continue to be possible over the Wapiti Burn Area.
* WHERE...A portion of southwest Idaho, including the following area,
Boise Mountains.
* WHEN...From Friday afternoon through Saturday evening.
* IMPACTS...Heavy rainfall over the Wapiti Burn Area is expected up
to and during the period of the watch. Residents near the Wapiti
Burn Area should prepare for potential debris flow. Be sure to stay
up to date with information from local authorities. Heavy rainfall
could trigger flash flooding or debris flows in and near recent
wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over the Wapiti Burn Area, which may lead to flash
flooding and debris flows.
- Some locations that may experience flash flooding include...
Grandjean.
- https://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
Local emergency services are monitoring the situation and will issue
a public statement as conditions warrant. PLAN NOW so you will know
what to do in an emergency. Keep informed by listening to local radio
and television for statements and possible warnings. Follow the
advice of public safety officials.
&&
$$
JDS
Red Flag Warning
URGENT - FIRE WEATHER MESSAGE
National Weather Service Pendleton OR
906 PM PDT Thu Aug 13 2026
...MONSOON MOISTURE WILL BRING SCATTERED THUNDERSTORMS TODAY
THROUGH TOMORROW...
.A push of monsoon moisture will bring scattered thunderstorms to
the region this afternoon into friday evening. Lingering dry
surface air will limit the rainfall amounts today, increasing
concern for lightning ignitions. Heavier rainfall is expected
within rain cores with storms Friday, but lightning outside of
rain cores continues to be a concern.
ORZ695-141200-
/O.CON.KPDT.FW.W.0016.000000T0000Z-260815T0200Z/
Eagle Cap Wilderness-
906 PM PDT Thu Aug 13 2026
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM PDT FRIDAY FOR
ABUNDANT LIGHTNING FOR FIRE WEATHER ZONE OR695...
* AFFECTED AREA...Fire Weather Zone 695 Eagle Cap Wilderness.
* TIMING...Until 7 PM PDT Friday.
* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
* THUNDERSTORMS...Scattered coverage with abundant lightning.
* OUTFLOW WINDS...Gusty erratic winds up to 40 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
128 PM MDT Thu Aug 13 2026
...MONSOON MOISTURE WILL BRING SCATTERED THUNDERSTORMS TODAY AND
TOMORROW...
A push of monsoon moisture will bring a mix of wet and dry
scattered thunderstorms to the region this afternoon through
Friday evening. Lingering dry surface air will limit the rainfall
amounts on Thursday and Friday morning, increasing concern for
lightning ignitions.
IDZ400>403-420-421-ORZ670>672-141200-
/O.CON.KBOI.FW.W.0018.260813T2100Z-260814T1200Z/
Northern Boise BLM-Western Payette National Forest-
Eastern Payette National Forest-Northern Boise National Forest-
Treasure Valley BLM-
Southern Boise/Western Sawtooth NF, including the Camas Prairie-
Burns BLM-Steens Mountain-Southern Grasslands-
128 PM MDT Thu Aug 13 2026 /1228 PM PDT Thu Aug 13 2026/
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 AM MDT /5 AM PDT/
FRIDAY FOR LIGHTNING FOR NORTHERN BOISE BLM...WESTERN PAYETTE
NATIONAL FOREST...EASTERN PAYETTE NATIONAL FOREST...NORTHERN
BOISE NATIONAL FOREST...TREASURE VALLEY BLM...SOUTHERN
BOISE/WESTERN SAWTOOTH NF, INCLUDING THE CAMAS PRAIRIE...OWYHEE
MOUNTAINS...WESTERN TWIN FALLS BLM...SOUTHERN HIGHLANDS...BURNS
BLM...STEENS MOUNTAIN AND SOUTHERN GRASSLANDS...WHICH ARE FIRE
WEATHER ZONES 400...401...402...403...420...421...423...424...
426...670...671 AND 672...
* AFFECTED AREA...In Idaho, Fire Weather Zones 400 Northern
Boise BLM, 401 Western Payette National Forest, 402 Eastern
Payette National Forest, 403 Northern Boise National Forest,
420 Treasure Valley BLM, 421 Southern Boise/Western Sawtooth
NF and including the Camas Prairie. In Oregon, Fire Weather
Zones 670 Burns BLM, 671 Steens Mountain and 672 Southern
Grasslands.
* TIMING...Until 6 AM MDT /5 AM PDT/ Friday.
* THUNDERSTORMS...Scattered coverage with abundant lightning.
* OUTFLOW WINDS...Gusty erratic winds up to 45 mph.
* 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.
&&
$$
L
URGENT - FIRE WEATHER MESSAGE
National Weather Service Boise ID
128 PM MDT Thu Aug 13 2026
...MONSOON MOISTURE WILL BRING SCATTERED THUNDERSTORMS TODAY AND
TOMORROW...
A push of monsoon moisture will bring a mix of wet and dry
scattered thunderstorms to the region this afternoon through
Friday evening. Lingering dry surface air will limit the rainfall
amounts on Thursday and Friday morning, increasing concern for
lightning ignitions.
ORZ673>675-142100-
/O.EXT.KBOI.FW.W.0018.260813T2100Z-260815T0200Z/
Central Canyonlands-Northwestern Vale BLM-Baker Valley-
128 PM MDT Thu Aug 13 2026 /1228 PM PDT Thu Aug 13 2026/
...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM MDT /7 PM PDT/
FRIDAY FOR LIGHTNING FOR CENTRAL CANYONLANDS...NORTHWESTERN VALE
BLM AND BAKER VALLEY...WHICH ARE FIRE WEATHER ZONES 673...674 AND
675...
* AFFECTED AREA...In Oregon, Fire Weather Zones 673 Central
Canyonlands, 674 Northwestern Vale BLM and 675 Baker Valley.
* TIMING...Until 8 PM MDT /7 PM PDT/ Friday.
* THUNDERSTORMS...Scattered coverage with abundant lightning.
* OUTFLOW WINDS...Gusty erratic winds up to 45 mph.
* 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.
&&
$$
L
Air Quality Alert
ORC013-031-061-063-065-142000-
Crook-Jefferson-Union-Wallowa-Wasco-
Including the cities of Prineville, Post, Paulina, Madras,
Warm Springs, Culver, La Grande, Elgin, Union, North Powder,
Enterprise, Joseph, Wallowa..Imnaha, Troy, Lostine, The Dalles,
Maupin, Shaniko, and Tygh Valley
401 PM PDT Thu Aug 13 2026
...AIR QUALITY ADVISORY IN EFFECT UNTIL 3 PM PDT FRIDAY...
Oregon Department of Environmental Quality has issued an Air Quality
Advisory until 3 PM PDT Friday.
For the Smoke Air Quality Advisory, wildfires burning in the region
combined with forecasted conditions will cause air quality to reach
unhealthy levels.
Pollutants in smoke can cause burning eyes, runny nose, aggravate
heart and lung diseases, and aggravate other serious health
problems. Limit outdoor activities and keep children indoors if it
is smoky. Please follow medical advice if you have a heart or lung
condition.
For additional information...please visit the Web site at
http://www.oregon.gov/DEQ
$$
IDC061-069-142300-
Lewis-Nez Perce-
Including the cities of Kamiah, Craigmont, Nezperce, Winchester,
Lewiston, Lapwai, Peck, Culdesac, and Gifford
347 PM PDT Thu Aug 13 2026
An Air Quality Alert has been issued by the following agencies:
Nez Perce Tribe
The Air Quality Advisory issued for the Nez Perce Reservation remains
in effect. Wildfire smoke may move in and out of the area depending
on fire and wind activity; some areas may be more impacted than
others.
The advisory has been lifted for areas outside of the Nez Perce
Reservation in Lewis and Nez Perce counties.
$$
WAC003-007-017-019-023-025-047-065-142300-
Asotin-Chelan-Douglas-Ferry-Garfield-Grant-Okanogan-Stevens-
Including the cities of Clarkston, Asotin, Anatone, Wenatchee,
Leavenworth, Cashmere, Entiat, Chelan, Manson, Plain,
East Wenatchee, Bridgeport, Waterville, Douglas, Republic,
Inchelium, Keller, Curlew, Danville, Laurier, Pomeroy, Moses Lake,
Ephrata, Quincy, Mattawa, Royal City, Coulee City, Omak, Okanogan,
Tonasket, Brewster, Oroville, Mazama, Winthrop, Methow, Twisp,
Conconully, Colville, Chewelah, Kettle Falls, Springdale,
and Northport
347 PM PDT Thu Aug 13 2026
An Air Quality Alert has been issued by the following agencies:
Washington Department of Ecology
An Air Quality Alert has been issued for Asotin, Chelan, Douglas,
Ferry, Garfield, Grant, Okanogan, and Stevens Counties until further
notice due to current and expected smoke from regional fires.
Particulate matter (PM2.5) may reach Unhealthy levels for areas
directly downwind from active wildfires. Other areas may reach
Unhealthy for Sensitive Groups or worse. While occasional clearing is
possible during periods of stronger winds, smoke production
continues to be significant from regional fires. Be sure to check air
monitors in your area before outdoor activities.
When air quality is Unhealthy, everyone should reduce exposure.
Limit time outside, avoid strenuous outdoor activity, and follow tips
for cleaner indoor air.
$$
ORC025-045-141900-
Harney-Malheur-
1213 PM MDT Wed Aug 12 2026 /1113 AM PDT Wed Aug 12 2026/
...AIR QUALITY ADVISORY FROM THE OREGON DEPARTMENT OF ENVIRONMENTAL
QUALITY FOR Harney and Malheur Counties...
* WHAT...High concentration of smoke particulates from wildfire
smoke.
* WHERE...Harney and Malheur Counties.
* WHEN...UNTIL NOON PDT FRIDAY.
* IMPACTS...Smoke can irritate the eyes, lungs and worsen some
medical conditions. People most at risk to adverse health effects
include infants, young children, people with heart or lung
disease, older adults, and pregnant women.
* ADDITIONAL DETAILS...Smoke levels can change rapidly depending on
weather. Check current conditions on the Oregon Smoke Information
Blog, DEQ`s Air Quality Index, or by downloading the free
OregonAIR app on your smartphone.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
* Stay inside if possible. Keep windows and doors closed.
* Avoid strenuous outdoor activity.
* Use high efficiency particulate air (HEPA) filters in indoor
ventilation systems or portable air purifiers.
* Be aware of smoke in your area and avoid places with the highest
levels.
* If you have heart or lung disease, or asthma, follow your
healthcare provider`s advice.
For current Oregon air quality conditions, please visit:
https://aqi.oregon.gov
For additional information, please visit:
https://www.oregon.gov/deq
$$
Hydrologic Outlook
Hydrologic Outlook
IDC001-003-015-025-027-039-045-073-075-085-087-ORC001-025-045-142100-
Hydrologic Outlook
National Weather Service Boise ID
1243 PM MDT Thu Aug 13 2026
Monsoon moisture will bring a threat of thunderstorms to the region
through Saturday evening for much of the area. High atmospheric
moisture will allow for isolated thunderstorms producing heavy rain
accumulations, leading to an increased threat of flash flooding
especially for the recent wildfire burn scars.
Friday and Saturday have the highest chance for locally heavy rains,
especially near the ID-NV border, and high terrain in southwest
Idaho.
Burn scars have the highest risk for flash flooding. Several burn
scars across the area including the Wapiti burn scar near Grandjean,
ID, the Fox burn scar near Richland, OR, the Tartar burn scar near
Weiser, ID, the Coleman Creek burn scar near Juntura, OR and the Big
Grass Fire burn scar near Jordan Valley, OR are of particular
concern for flash flooding and debris flows. Please monitor the
latest weather conditions if traveling near these areas.
$$
JDS
