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* WHAT...Hot conditions during the day for the valleys. Highs mid 90s to 105. Overnight lows mainly in the upper 50s and 60s. * WHERE...Boulder Creek Road, Wauconda, Northport, Orin-Rice Road, Republic, Springdale-Hunters Road, Chewelah, Fruitland, Highway 20 Wauconda Summit, Ione, Metaline, Colville, Newport, Chesaw Road, Inchelium, Deer Park, Tiger, Sherman Pass, Flowery Trail Road, Metaline Falls, and Kettle Falls. * WHEN...Until 10 PM PDT Sunday. * IMPACTS...Heat will increase the risk of heat-related illnesses, especially those without effective cooling or adequate hydration.

* WHAT...Hot conditions. Afternoon high temperatures of 96 to 105 degrees accompanied by overnight low temperatures in the lower 60s to lower 70s. This will pose a moderate to major risk of heat-related illness. * WHERE...Lower Columbia Basin of Oregon and Washington. * WHEN...Until 10 PM PDT this evening. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration.

* WHAT...Hot conditions. Afternoon high temperatures of 99 to 103 degrees accompanied by overnight low temperatures in the mid-60s to lower 70s. This will pose a moderate to major risk of heat-related illness. * WHERE...Kittitas Valley and Yakima Valley. * WHEN...Until 10 PM PDT this evening. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration.

* WHAT...Hot conditions. Afternoon high temperatures of 96 to 105 degrees accompanied by overnight low temperatures in the lower 60s to lower 70s. This will pose a moderate to major risk of heat-related illness. * WHERE...Lower Columbia Basin of Oregon and Washington. * WHEN...Until 10 PM PDT this evening. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration.

* WHAT...Hot conditions. Afternoon high temperatures of 96 to 105 degrees accompanied by overnight low temperatures in the lower 60s to lower 70s. This will pose a moderate to major risk of heat-related illness. * WHERE...Lower Columbia Basin of Oregon and Washington. * WHEN...Until 10 PM PDT this evening. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration.

* WHAT...Dangerously hot conditions. Afternoon high temperatures of 99 to 103 degrees accompanied by overnight low temperatures in the mid-60s to lower 70s. This will pose a moderate to major risk of heat-related illness. * WHERE...Kittitas Valley and Yakima Valley. * WHEN...Until 10 PM PDT this evening. * IMPACTS...Extreme heat will significantly increase the risk of heat-related illnesses for much of the population, especially those who are heat sensitive and those without effective cooling or adequate hydration.

* WHAT...Hot conditions. Afternoon high temperatures of 96 to 105 degrees accompanied by overnight low temperatures in the lower 60s to lower 70s. This will pose a moderate to major risk of heat-related illness. * WHERE...Lower Columbia Basin of Oregon and Washington. * WHEN...Until 10 PM PDT this evening. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration.

Isolated to scattered thunderstorms containing little to no rainfall will be possible over much of Washington this afternoon and tonight. Any thunderstorms have the potential to produce gusty outflow winds that could travel quite a distance from the thunderstorm source. * Affected Area: Fire Weather Zone 709 Lower Palouse - Snake River. * Thunderstorms: Isolated to scattered thunderstorms through the evening. * Outflow Winds: Gusty and erratic winds are possible with any thunderstorms that develop. The outflow winds could travel quite a distance from the core of the storm. * Impacts: Thunderstorms containing little to no rain and gusty winds combined with dry fuels will lead to the potential for new fire starts in addition to current fires, may overwhelm initial attack capabilities.

Isolated to scattered thunderstorms containing little to no rainfall will be possible over much of Washington this afternoon and tonight. Any thunderstorms have the potential to produce gusty outflow winds that could travel quite a distance from the thunderstorm source. * Affected Area: Fire Weather Zone 708 Eastern Columbia Basin - Palouse-Spokane Area. * Thunderstorms: Isolated thunderstorms mainly over the Palouse. * Outflow Winds: Gusty and erratic winds are possible with any thunderstorms that develop. * Impacts: Thunderstorms containing little to no rain and gusty winds combined with dry fuels will lead to the potential for new fire starts in addition to current fires, may overwhelm initial attack capabilities.

Isolated to scattered thunderstorms containing little to no rainfall will be possible over much of Washington this afternoon and tonight. Any thunderstorms have the potential to produce gusty outflow winds that could travel quite a distance from the thunderstorm source. * Affected Area: Fire Weather Zone 699 Okanogan Highlands and Kettle Mountains, Fire Weather Zone 702 Colville Reservation, * Thunderstorms: Scattered thunderstorms. * Outflow Winds: Gusty and erratic winds are possible with any thunderstorms that develop. * Impacts: Thunderstorms containing little to no rain combined with dry fuels will lead to the potential for new fire starts that may overwhelm initial attack capabilities. Gusty winds with thunderstorms will result in rapid fire spread with any new or existing fires.

* WHAT...Hot conditions. High temperatures up to 102 degrees accompanied by overnight lows in the mid to upper 60s. This will pose a moderate to locally major risk of heat-related illness. * WHERE...Lower Columbia Basin of Oregon and Washington. * WHEN...Until 10 PM PDT Thursday. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration.

* WHAT...Dangerously hot conditions with temperatures up to 101 degrees has receded and the risk has ended * WHERE...Kittitas Valley and Yakima Valley. * WHEN...Until 10 PM PDT Thursday. * IMPACTS...Dangerously hot conditions with temperatures up to 101 degrees has receded and the risk has ended

* WHAT...Hot conditions. High temperatures up to 102 degrees accompanied by overnight lows in the mid to upper 60s. This will pose a moderate to locally major risk of heat-related illness. * WHERE...Lower Columbia Basin of Oregon and Washington. * WHEN...Until 10 PM PDT Thursday. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration.

At 511 PM PDT, Doppler radar was tracking a strong thunderstorm over southwestern Hanford Reservation, or 20 miles northwest of Richland, 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 hail damage to vegetation is possible. Locations impacted include... Hanford Reservation.

At 505 PM PDT, Doppler radar was tracking a strong thunderstorm near Boardman, moving northeast at 50 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 hail damage to vegetation is possible. Locations impacted include... Boardman, Irrigon, and Paterson.

At 505 PM PDT, Doppler radar was tracking a strong thunderstorm near Boardman, moving northeast at 50 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 hail damage to vegetation is possible. Locations impacted include... Boardman, Irrigon, and Paterson.

An Air Quality Alert has been issued by the following agencies: Washington Department of Ecology An Air Quality Alert, issued for all of Chelan County plus the Methow Valley down to Brewster in Okanogan County will remain in effect until further notice, due to expected smoke from the Pioneer Fire and other 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. Limit time outside, avoid strenuous activity, and follow tips for cleaner indoor air. 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.

* AFFECTED AREA...Fire Weather Zone 652 West Portion of the Olympic Mountains and Fire Weather Zone 661 East Portion of the Olympic Mountains. * THUNDERSTORMS...Scattered thunderstorms with LAL 3 are expected during the afternoon and evening hours. * OUTFLOW WINDS...Gusty and erratic winds are possible in the vicinity of any thunderstorms that develop. * IMPACTS...Scattered lightning in dry fuels can cause multiple fire starts. Thunderstorms can also bring sudden sharp wind shifts on existing fires, causing rapid changes in a fire's rate of spread and direction of spread. Thunderstorm outflow winds can be a threat for several hours following the start of a new lightning-caused fire. If a fire were to begin, air quality may diminish in the surrounding area.

* AFFECTED AREA...Fire Weather Zone 658 West Slopes of the North Cascades Generally above 1500 Feet. * THUNDERSTORMS...Scattered thunderstorms with LAL 3 are expected to develop along and near the crest of the Cascades during the afternoon and evening hours. * OUTFLOW WINDS...Gusty and erratic winds are possible in the vicinity of any thunderstorms that develop. * IMPACTS...Scattered lightning in dry fuels can cause multiple fire starts. Thunderstorms can also bring sudden sharp wind shifts on existing fires, causing rapid changes in a fire's rate of spread and direction of spread. Thunderstorm outflow winds can be a threat for several hours following the start of a new lightning-caused fire. If a fire were to begin, air quality may diminish in the surrounding area.

* AFFECTED AREA...Fire Weather Zone 659 West Slopes of the Central Cascades Generally above 1500 Feet. * THUNDERSTORMS...Scattered thunderstorms with LAL 3 are expected during the afternoon and evening hours. * OUTFLOW WINDS...Gusty and erratic winds are possible in the vicinity of any thunderstorms that develop. * IMPACTS...Scattered lightning in dry fuels can cause multiple fire starts. Thunderstorms can also bring sudden sharp wind shifts on existing fires, causing rapid changes in a fire's rate of spread and direction of spread. Thunderstorm outflow winds can be a threat for several hours following the start of a new lightning-caused fire. If a fire were to begin, air quality may diminish in the surrounding area.