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Oregon Department of Environmental Quality has issued an Air Quality Advisory...IN EFFECT UNTIL 5 PM PDT MONDAY. A Smoke Air Quality Advisory has been issued. 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

* WHAT...Flash flooding and debris flows caused by excessive rainfall are possible over burns scars and steep terrain. * WHERE...A portion of west central Washington, including the following areas, West Slopes North Cascades and Passes, West Slopes North Central Cascades and Passes and West Slopes South Central Cascades and Passes. * WHEN...From Saturday afternoon through Sunday morning. * IMPACTS...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 burn scars on the west slopes of the Cascades Saturday afternoon though Sunday morning, which may lead to flash flooding and debris flows. The fast speed of thunderstorm cells may diminish precipitation amounts. - http://www.weather.gov/safety/flood

...HOT, DRY, WINDY TOMORROW AFTERNOON AND EVENING IN OR636, OR637, ID423, AND ID426... ...HIGH HAINES AND HOT, DRY, WINDY TOMORROW AFTERNOON AND EVENING IN IDAHO ZONES 401, 402, 403, AND 421... * Affected Area...In Idaho, Fire Weather Zones 423 Owyhee Mountains and 426 Southern Highlands. In Oregon, Fire Weather Zones 636 Burns BLM and 637 Vale BLM. * Timing...From Saturday afternoon through Saturday evening. * Winds...South 15 to 20 mph with gusts up to 35 mph. * Relative Humidity...As low as 8 percent. * Temperatures...Up to 94.

* WHAT...Flash flooding and debris flows caused by excessive rainfall continue to be possible over the 2024 burn areas associated with active wildfires. * WHERE...Portions of Oregon, including the following areas, Cascades of Lane County, Cascades of Marion and Linn Counties and North Oregon Cascades and southwest Washington, including the following area, South Washington Cascades. * WHEN...From Saturday afternoon through late Saturday night. * IMPACTS...Heavy rainfall is expected over the 2024 burn areas associated with active wildfires. Residents near these areas should prepare for potential flooding impacts. 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 2024 burn areas associated with active wildfires, which may lead to flash flooding and debris flows. Hourly rainfall rates up to 0.75 inches per hour will be possible. - http://www.weather.gov/safety/flood

* WHAT...Flash flooding and debris flows caused by excessive rainfall continue to be possible over the 2024 burn areas associated with active wildfires. * WHERE...Portions of Oregon, including the following areas, Cascades of Lane County, Cascades of Marion and Linn Counties and North Oregon Cascades and southwest Washington, including the following area, South Washington Cascades. * WHEN...From Saturday afternoon through late Saturday night. * IMPACTS...Heavy rainfall is expected over the 2024 burn areas associated with active wildfires. Residents near these areas should prepare for potential flooding impacts. 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 2024 burn areas associated with active wildfires, which may lead to flash flooding and debris flows. Hourly rainfall rates up to 0.75 inches per hour will be possible. - http://www.weather.gov/safety/flood

* WHAT...Flash flooding and debris flows caused by excessive rainfall are possible over burn scars and steep terrain. * WHERE...A portion of North Central Washington, including the following counties, Chelan and Okanogan. * WHEN...From 11 AM PDT this morning through this evening. * IMPACTS...Heavy rainfall over burn scars in the North Cascades is possible this afternoon and evening. Heavy rainfall could trigger flash flooding and debris flows in and near current or recent wildfire burn scars as well as over steep terrain. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood

* IMPACTS...Strong winds combined with critically low relative humidity can lead to the rapid growth and spread of new and existing fires. * AFFECTED AREA...In Oregon, the southeastern corner of Fire Weather Zone 624, including Lakeview. In California, the eastern half of Fire Weather Zone 285, including Alturas. * WIND...South winds 20 to 30 mph with gusts 35 to 40 mph. * HUMIDITY...10 to 15 percent. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* IMPACTS...Strong winds combined with critically low relative humidity can lead to the rapid growth and spread of new and existing fires. * AFFECTED AREA...Much of Fire Weather Zone 625 south of Summer Lake and the Christmas Valley. This includes the Warner Peak Fire, Adel, Paisley and the Hart Mountain Refuge. * WIND...South winds 20 to 30 mph with gusts 30 to 40 mph, and gusts up to 45 mph on the ridges. * HUMIDITY...10 to 15 percent. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

...HOT, DRY, WINDY, AND POTENTIALLY UNSTABLE CONDITIONS EXPECTED FOR SOUTHEASTERN OREGON ON SATURDAY... .A robust low pressure system centered off the coast of the Pacific Northwest will orient the winds aloft more southerly, pushing in a hot and dry airmass into southern Oregon. Relative humidities will drop significantly as a result on Saturday. This, combined with the low pressure system amplifying the wind speeds, will potentially lead to critical fire weather conditions across much of southeastern Oregon. Unstable conditions are possible as well, with values of 5 and locally 6 possible during the day Saturday. The National Weather Service in Pendleton has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Saturday afternoon through Saturday evening. * AFFECTED AREA...Fire Weather Zone 642 Southern Blue and Strawberry Mountains. * WINDS...South 15 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Gusty winds with dry conditions may lead to rapid fire spread. Unstable conditions may promote extreme fire behavior as well.

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of south central Washington, including the following areas, Lower Slopes of the Eastern Washington Cascades Crest and Upper Slopes of the Eastern Washington Cascades Crest. * WHEN...From Saturday afternoon through late Saturday night. * IMPACTS...Heavy rainfall could trigger flash flooding of low-lying areas, urbanized street flooding, and debris flows in and near recent wildfire burn scars. * ADDITIONAL DETAILS... - National Weather Service Meteorologists are forecasting heavy rainfall from thunderstorms over the burn scars along the east slopes of the WA Cascades, which may lead to flash flooding and debris flows. - http://www.weather.gov/safety/flood

The National Weather Service in Medford has cancelled the Red Flag Warning. Thunderstorms have not developed today and none are expected through the remainder of the night. A Fire Weather Watch continues in effect from Saturday afternoon through Saturday evening. * IMPACTS...Fire could spread rapidly. * AFFECTED AREA...Southeast Lake county including the Warner Peak Fire, Adel and Hart Mountain Refuge. * WINDS AND HUMIDITY...South winds 20 to 30 mph with gusts up to 45 mph combined with humidity 10 to 15 percent. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

At 510 PM PDT, Doppler radar was tracking a strong thunderstorm 17 miles southwest of Winchester, or 26 miles south of Lapwai, moving north at 20 mph. HAZARD...Winds in excess of 40 mph and pea size hail. Wind gusts may occur well ahead of precipitation. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to outdoor objects is possible. Locations impacted include... Craigmont, Winchester, Reubens, Rogersburg, and Waha. This includes U.S. Highway 95 in Idaho between mile markers 272 and 284.

At 438 PM PDT, Doppler radar was tracking a strong thunderstorm 15 miles northeast of Ski Bluewood, or 22 miles southeast of Dayton, moving north at 10 mph. HAZARD...Winds in excess of 40 mph and half inch hail. Wind gusts may occur well ahead of precipitation. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to outdoor objects is possible. Locations impacted include... Clarkston, Pomeroy, Clarkston Heights-Vineland, West Clarkston-Highland, Asotin, Cloverland, Dodge, Mayview, Misery Spring Campground, Anatone, Clarkston Heights, Wawawai, Peola, Alder Thicket Campground, Wickiup Campground, Jerry, and Spruce Spring Campground. This includes U.S. Highway 12 in Washington between mile markers 389 and 427, and between mile markers 430 and 433.

At 428 PM PDT /528 PM MDT/, Doppler radar indicated thunderstorms producing heavy rain over the Cow Valley and Durkee Burn Scar. Between 0.5 and 2 inches of rain have fallen. The expected rainfall rate is 0.5 to 1 inch in 1 hour. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding in and around the Cow Valley and Durkee Burn Scar. SOURCE...Radar. IMPACT...Life threatening flash flooding of areas in and around the Cow Valley and Durkee Burn Scar. Some locations that will experience flash flooding include... Brogan, Rye Valley, Malheur Reservoir, Malheur City, Jamieson, Cow Valley, Weatherby, Durkee, Dixie, and Lime.

...ISOLATED TO WIDELY SCATTERED HIGH-BASED STORMS OVERNIGHT INTO THURSDAY IN OREGON ZONES 611, 640, and 642... ...SCATTERED TO NUMEROUS STORMS THURSDAY AFTERNOON AND EVENING ACROSS OREGON ZONES 644 and 645... .Satellite and radar imagery currently show shower activity across central Oregon. Lightning strikes across the warned areas have thus far been limited, but weather models do continue to show a potential for thunderstorm activity for the warned areas, particularly across the eastern mountains of Oregon, with a potential flare-up in storm activity occurring Thursday afternoon. While wet storms are still in the forecast, fuels are receptive enough to warrant a Red Flag Warning, with lightning strikes still leading to new fire starts even under a wetting rain. * AFFECTED AREA...Fire Weather Zones 644 Central Blue Mountains and 645 Wallowa District. * IMPACTS...Thunderstorms will be capable of producing frequent cloud-to-ground lightning and erratic, gusty outflow winds. This combination will promote conditions conducive to new fire starts and rapid fire spread for new and existing fires. * THUNDERSTORMS...Abundant lightning with frequent cloud-to- ground lightning strikes. * OUTFLOW WINDS...Gusty winds up to 40 mph.

...ISOLATED TO WIDELY SCATTERED HIGH-BASED STORMS OVERNIGHT INTO THURSDAY IN OREGON ZONES 611, 640, and 642... ...SCATTERED TO NUMEROUS STORMS THURSDAY AFTERNOON AND EVENING ACROSS OREGON ZONES 644 and 645... .Satellite and radar imagery currently show shower activity across central Oregon. Lightning strikes across the warned areas have thus far been limited, but weather models do continue to show a potential for thunderstorm activity for the warned areas, particularly across the eastern mountains of Oregon, with a potential flare-up in storm activity occurring Thursday afternoon. While wet storms are still in the forecast, fuels are receptive enough to warrant a Red Flag Warning, with lightning strikes still leading to new fire starts even under a wetting rain. * AFFECTED AREA...Fire Weather Zones 611 Deschutes National Forest -minus Sisters Ranger District, 640 Central Mountains of Oregon and 642 Southern Blue and Strawberry Mountains. * IMPACTS...Thunderstorms will be capable of producing frequent cloud-to-ground lightning and erratic, gusty outflow winds. This combination will promote conditions conducive to new fire starts and rapid fire spread for new and existing fires. * THUNDERSTORMS...Abundant lightning with frequent cloud-to- ground lightning strikes. * OUTFLOW WINDS...Gusty winds up to 40 mph.

At 212 PM PDT, Doppler radar was tracking a strong thunderstorm over Lehman Hot Springs, or 28 miles southwest of Meacham, moving northwest at 10 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... Lehman Hot Springs.

...ISOLATED TO SCATTERED THUNDERSTORMS THROUGH THIS EVENING... .Isolated to scattered thunderstorms could develop and will move northeastward this evening across northern Klamath and Lake Counties. Strong southerly flow ahead of a low returns this weekend and a Fire Weather Watch has been issued for Saturday because of gusty winds and low RH. Some strong storms may also develop along and west of the Cascades. ...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY EVENING FOR STRONG GUSTY WIND AND LOW RH FOR FIRE WEATHER ZONE 625... The National Weather Service in Medford has issued a Fire Weather Watch, which is in effect from Saturday afternoon through Saturday evening. * 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...For the Red Flag Warning, most of Oregon Fire Zone 625 north of Highway 140. This includes the Warner Peak Fire, though the greatest coverage of storms is likely to be north and west of the Warner Peak Fire. For the Fire Weather Watch, eastern portions of Oregon Fire Zone 625, including Adel and the Warner Peak Fire. * THUNDERSTORMS...Another round of isolated to scattered thunderstorms is expected this evening, with the greatest coverage expected north of a line from Chiloquin to Paisley. .Low pressure will move into the region late this afternoon and overnight, providing sufficient trigger for thunderstorm initiation. Isolated storms will initially start out over portions of northern California late this afternoon, then move northeastward and continue into the overnight hours. After a relative lull early Thursday morning, another round of isolated to scattered thunderstorms is expected across northern Klamath and Lake Counties Thursday afternoon. Despite rain with these thunderstorms, lightning strikes outside of precipitation cores are possible and cause for concern. * OUTFLOW WINDS...Quickly shifting winds with outflow 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

...ISOLATED TO SCATTERED THUNDERSTORMS THROUGH THIS EVENING... .Isolated to scattered thunderstorms could develop and will move northeastward this evening across northern Klamath and Lake Counties. Strong southerly flow ahead of a low returns this weekend and a Fire Weather Watch has been issued for Saturday because of gusty winds and low RH. Some strong storms may also develop along and west of the Cascades. ...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY EVENING FOR STRONG GUSTY WIND AND LOW RH FOR FIRE WEATHER ZONE 625... The National Weather Service in Medford has issued a Fire Weather Watch, which is in effect from Saturday afternoon through Saturday evening. * 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...For the Red Flag Warning, most of Oregon Fire Zone 625 north of Highway 140. This includes the Warner Peak Fire, though the greatest coverage of storms is likely to be north and west of the Warner Peak Fire. For the Fire Weather Watch, eastern portions of Oregon Fire Zone 625, including Adel and the Warner Peak Fire. * THUNDERSTORMS...Another round of isolated to scattered thunderstorms is expected this evening, with the greatest coverage expected north of a line from Chiloquin to Paisley. .Low pressure will move into the region late this afternoon and overnight, providing sufficient trigger for thunderstorm initiation. Isolated storms will initially start out over portions of northern California late this afternoon, then move northeastward and continue into the overnight hours. After a relative lull early Thursday morning, another round of isolated to scattered thunderstorms is expected across northern Klamath and Lake Counties Thursday afternoon. Despite rain with these thunderstorms, lightning strikes outside of precipitation cores are possible and cause for concern. * OUTFLOW WINDS...Quickly shifting winds with outflow 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

...ISOLATED TO SCATTERED THUNDERSTORMS THROUGH THIS EVENING... .Isolated to scattered thunderstorms could develop and will move northeastward this evening across northern Klamath and Lake Counties. Strong southerly flow ahead of a low returns this weekend and a Fire Weather Watch has been issued for Saturday because of gusty winds and low RH. Some strong storms may also develop along and west of the Cascades. * 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 of Oregon Fire Zone 624 north of Highway 140. * THUNDERSTORMS...Another round of isolated to scattered thunderstorms is expected this evening, with the greatest coverage expected north of a line from Chiloquin to Paisley. Despite rain with these thunderstorms, lightning strikes outside of precipitation cores are possible and cause for concern. * OUTFLOW WINDS...Quickly shifting winds with outflow 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