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At 758 PM PDT, Doppler radar was tracking a strong thunderstorm near Antlers Forest Service Station, or 25 miles west of Baker City, moving northeast at 40 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. This strong thunderstorm will be near... Antlers Forest Service Station around 800 PM PDT. Sumpter around 810 PM PDT.

The National Weather Service in Spokane has issued a Red Flag Warning for thunderstorms, which is in effect from 3 AM to 5 PM PDT Monday. * Affected Area: Fire Weather Zone 701 Foothills of Northeast Washington (Zone 701), Fire Weather Zone 707 Western Columbia Basin (Zone 707), Fire Weather Zone 708 Eastern Columbia Basin -Palouse -Spokane Area (Zone 708) and Fire Weather Zone 709 Lower Palouse -Snake River (Zone 709). * Thunderstorms: Scattered thunderstorms containing only brief rain. * Outflow Winds: Gusty outflow winds are possible near any thunderstorms. * Impacts: Abundant lightning combined with dry fuels may lead to several new fire starts on Monday. The fast movement of storms will limit rain amounts, leading to the potential for new fire starts.

At 529 PM PDT, Doppler radar was tracking a strong thunderstorm 10 miles southeast of Ashwood, or 21 miles west of Mitchell, moving northeast at 25 mph. HAZARD...Wind gusts up to 40 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Clarno.

* WHAT...High concentration of smoke particulates from numerous wild fires in Oregon and Northern California. * WHERE...Harney and Malheur Counties. * WHEN...Until at least 2 PM PDT Monday. * 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.

An Air Quality Alert has been issued by the following agencies: Washington Department of Ecology Colville Confederated Tribes An Air Quality Alert continues for all of Okanogan and Ferry Counties, as well as the Colville Reservation until further notice, due to expected smoke from nearby and regional wildfires. Particulate matter (PM2.5) may reach Unhealthy and Unhealthy for Sensitive Groups levels. Health Impacts and Recommended Actions: When air quality is Unhealthy, everyone should reduce exposure. When air quality is Unhealthy for Sensitive Groups, sensitive groups should take steps to reduce exposure. Limit time outside, avoid strenuous outdoor activity, and follow tips for cleaner indoor air. Everyone should watch for symptoms as a sign to reduce exposure. Agricultural and outdoor burning restrictions are in effect.

* WHAT...Hot temperatures. High temperatures 97 to 106 degrees Monday. * WHERE...Gifford, Alpowa Summit, Lapwai, Lewiston, Lewiston Grade, Pomeroy, Culdesac, Peck, and Clarkston. * WHEN...From noon to 8 PM PDT Monday. * IMPACTS...Heat will increase the risk of heat-related illnesses, especially for those without effective cooling or adequate hydration.

...ABUNDANT LIGHTNING FOR TONIGHT THROUGH SUNDAY MORNING... .A weak weather disturbance continues to rides up an upper ridge and over the region. This disturbance will also bring increasing unstable conditions across the eastern mountains, with a slight chance of isolated thunderstorms through Sunday morning. Any thunderstorms could produce abundant lightning leading to new fires starts. * AFFECTED AREA...Fire Weather Zones 640 Central Mountains of Oregon, 642 Southern Blue and Strawberry Mountains, 644 Central Blue Mountains and 645 Wallowa District. * IMPACTS...Thunderstorms may produce abundant lightning leading to new fire starts. * THUNDERSTORMS...Isolated to widely scattered. Lightning activity level of 2 to 3. * OUTFLOW WINDS...Gusts as high as 50 mph are possible near thunderstorms.

An Air Quality Alert was issued by the following agencies: Washington Department of Ecology Colville Confederated Tribes An Air Quality Alert continues for all of Okanogan and Ferry Counties, as well as the Colville Reservation until further notice, due to expected smoke from nearby and regional wildfires. Particulate matter (PM2.5) may reach Unhealthy and Unhealthy for Sensitive Groups levels. Health Impacts and Recommended Actions: When air quality is Unhealthy, everyone should reduce exposure. When air quality is Unhealthy for Sensitive Groups, sensitive groups should take steps to reduce exposure. Limit time outside, avoid strenuous outdoor activity, and follow tips for cleaner indoor air. Everyone should watch for symptoms as a sign to reduce exposure. Agricultural and outdoor burning restrictions are in effect.

* IMPACTS..Abundant lightning on dry fuels will increase the risk of new fire starts. Additionally, gusty outflow winds will allow for new and existing fires to grow rapidly. * AFFECTED AREA...Most areas from the Cascade crest east, including FWZs 285, 625, and eastern 624 roughly east of a line from Chemult to Bonanza. * THUNDERSTORMS...Isolated to scattered thunderstorms. Despite the wet nature of the thunderstorms, lightning strikes outside of precipitation cores are possible and cause for concern. * OUTFLOW WINDS...Gusts up to 40 to 50 mph. These outflow winds can travel up to 50 miles away from the thunderstorm that caused it. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

...ABUNDANT LIGHTNING FOR THIS AFTERNOON THROUGH SUNDAY MORNING... .An upper level ridge of high pressure will begin to breakdown later today as a weak weather disturbance rides up the ridge and over the region. This disturbance will also bring increasing unstable conditions across the eastern mountains, with a slight chance of isolated thunderstorms in the afternoon. Thunderstorm chances increase and move northeastward tonight into Sunday morning. Any thunderstorms could produce abundant lightning leading to new fires starts. * AFFECTED AREA...Fire Weather Zones 640 Central Mountains of Oregon, 642 Southern Blue and Strawberry Mountains, 644 Central Blue Mountains and 645 Wallowa District. * IMPACTS...Thunderstorms may produce abundant lightning leading to new fire starts. * THUNDERSTORMS...Isolated to widely scattered. Lightning activity level of 2 to 3. * OUTFLOW WINDS...Gusts as high as 50 mph are possible near thunderstorms.

* WHAT...Temperatures up to 103. * WHERE...Portions of south central, southwest and west central Idaho and southeast Oregon. * WHEN...Until midnight MDT tonight. * IMPACTS...Hot temperatures may cause heat illnesses to occur.

* WHAT...High concentration of smoke particulates from numerous wild fires in Oregon and Nothern California * WHERE...Harney and Malheur Counties. * WHEN...Until at least 2 PM PDT Monday. * 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.

* IMPACTS..Abundant lightning on dry fuels will increase the risk of new fire starts. Additionally, gusty outflow winds will allow for new and existing fires to grow rapidly. * AFFECTED AREA...Most areas from the Cascade crest east, including FWZs 623, 624, 625, 284, 285. And west of the Cascade crest, FWZs 617 and 280. * THUNDERSTORMS...Isolated to scattered thunderstorms, with the greatest coverage expected later this afternoon. Despite the wet nature of the thunderstorms, lightning strikes outside of precipitation cores are possible and cause for concern. * OUTFLOW WINDS...Gusts up to 40 to 50 mph. These outflow winds can travel up to 50 miles away from the thunderstorm that caused it. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* WHAT...Very hot temperatures. Saturday's high temperatures 95 to 101 with up to 105 at Omak. * WHERE...Mansfield, Methow, Chelan, Okanogan, Oroville, Bridgeport, Omak, Disautel Pass, Mazama, Winthrop, Number 1 Canyon, Brewster, Tonasket, Conconully, Plain, Waterville, Pangborn Airport, Cashmere, Loup Loup Pass, Badger Mountain Road, Number 2 Canyon, Nespelem, Twisp, Leavenworth, Wenatchee, and Entiat. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat will increase the risk of heat-related illnesses, especially for those without effective cooling or adequate hydration.

* WHAT...Very hot temperatures. Saturday's high temperatures 96 and 101 degrees. * WHERE...Boulder Creek Road, Wauconda, Republic, Chesaw Road, Highway 20 Wauconda Summit, Sherman Pass, and Inchelium. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat will increase the risk of heat-related illnesses, especially for those without effective cooling or adequate hydration.

...SCATTERED THUNDERSTORMS SATURDAY EVENING INTO SUNDAY MORNING... * Thunderstorms...Scattered. * Outflow Winds...Up to 60 MPH. * Timing...From 3 PM MDT /2 PM PDT/ this afternoon to 6 AM MDT /5 AM PDT/ Sunday.

* WHAT...Very hot temperatures. Saturday's high temperatures 95 to 101 with up to 105 at Omak. * WHERE...Portions of North and North Central Idaho and Central, East Central, North Central, Northeast, and Southeast Washington. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat will increase the risk of heat-related illnesses, especially for those without effective cooling or adequate hydration. * ADDITIONAL DETAILS...Overnight temperatures will be well above average with some areas staying above 80 degrees well into the night. Homes without air conditioning will struggle to cool overnight.

* WHAT...Hot temperatures. High temperatures 90 to 100. * WHERE...Anatone, Peola, Mountain Road, and Cloverland Road. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat will increase the risk of heat-related illnesses, especially for those without effective cooling or adequate hydration.

* WHAT...Very hot temperatures. Saturday's high temperatures 95 and 100 degrees. * WHERE...Chewelah, Wauconda, Ione, Newport, Chesaw Road, Metaline Falls, Metaline, Flowery Trail Road, Clark Fork, Deer Park, Northport, Orin-Rice Road, Sandpoint, Colville, Inchelium, Kettle Falls, Springdale-Hunters Road, Tiger, Schweitzer Mountain Road, Athol, Republic, Fruitland, Bonners Ferry, Eastport, Priest River, Boulder Creek Road, Highway 20 Wauconda Summit, and Sherman Pass. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat will increase the risk of heat-related illnesses, especially for those without effective cooling or adequate hydration.

...ABUNDANT LIGHTNING FOR THIS AFTERNOON THROUGH SUNDAY MORNING... .An upper level ridge of high pressure will begin to breakdown later today as a weak weather disturbance rides up the ridge and over the region. This disturbance will also bring increasing unstable conditions across the eastern mountains, with a slight chance of isolated thunderstorms in the afternoon. Thunderstorm chances increase and move northeastward tonight into Sunday morning. Any thunderstorms could produce abundant lightning leading to new fires starts. * AFFECTED AREA...Fire Weather Zones 640 Central Mountains of Oregon, 642 Southern Blue and Strawberry Mountains, 644 Central Blue Mountains and 645 Wallowa District. * IMPACTS...Thunderstorms may produce abundant lightning leading to new fire starts. * THUNDERSTORMS...Isolated to widely scattered. Lightning activity level of 2 to 3. * OUTFLOW WINDS...Gusts as high as 50 mph are possible near thunderstorms.