NOAA Current Watches-WA

...ISOLATED THUNDERSTORMS AND DRY, UNSTABLE CONDITIONS THIS AFTERNOON, OVERNIGHT, AND WEDNESDAY... A low pressure system will move north-northeastward into the Pacific Northwest late today through Wednesday night. This system will provide enough moisture and elevated instability for high- based showers and isolated thunderstorms to develop late this afternoon, overnight, and Wednesday. * AFFECTED AREA...Fire Weather Zones 641 Lower Columbia Basin of Oregon, 690 Kittitas Valley, 691 Lower Columbia Basin, 694 Yakama Alpine District and 695 East Washington South Central Cascade Mountains. * TIMING...11 PM through 5 PM. * WINDS...North 5 to 10 mph. * RELATIVE HUMIDITY...As low as 13 percent. * TEMPERATURES...Up to 101. * IMPACTS...Any new fire starts will exhibit extreme fire behavior. Current fire on landscape will also exhibit extreme fire behavior. * HAINES...As high as 6. * THUNDERSTORMS...Isolated to scattered thunderstorms are possible. * OUTFLOW WINDS...35 to 40 mph.

* WHAT...Daytime temperatures between 95 to 100 expected. Overnight lows between 65 to 70 will limit chances to recover from the heat Tuesday night. * WHERE...In Oregon, Central Columbia River Gorge I-84 Corridor, East Portland Metro, Inner Portland Metro, and West Columbia River Gorge I-84 Corridor. In Washington, Central Columbia River Gorge SR 14 Corridor, East Clark County Lowlands, Inner Vancouver Metro, and West Columbia River Gorge SR 14 Corridor. * WHEN...Until 8 AM PDT Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses.

...ISOLATED THUNDERSTORMS AND DRY, UNSTABLE CONDITIONS THIS AFTERNOON, OVERNIGHT, AND WEDNESDAY... A low pressure system will move north-northeastward into the Pacific Northwest late today through Wednesday night. This system will provide enough moisture and elevated instability for high- based showers and isolated thunderstorms to develop late this afternoon, overnight, and Wednesday. * AFFECTED AREA...Fire Weather Zones 641 Lower Columbia Basin of Oregon, 690 Kittitas Valley, 691 Lower Columbia Basin, 694 Yakama Alpine District and 695 East Washington South Central Cascade Mountains. * TIMING...2 PM through 11 PM. * WINDS...North 5 to 10 mph. * RELATIVE HUMIDITY...As low as 13 percent. * TEMPERATURES...Up to 101. * IMPACTS...Any new fire starts will exhibit extreme fire behavior. Current fire on landscape will also exhibit extreme fire behavior. * HAINES...As high as 6. * THUNDERSTORMS...Isolated to scattered thunderstorms are possible. * OUTFLOW WINDS...35 to 40 mph.

The National Weather Service in Seattle has issued a Red Flag Warning for dry thunderstorms and gusty outflow winds, which is in effect from 8 AM to 11 PM PDT Wednesday. The Fire Weather Watch is no longer in effect. * 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 as early as late morning and most likely 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.

The National Weather Service in Seattle has issued a Red Flag Warning for dry thunderstorms and gusty outflow winds, which is in effect from 8 AM to 11 PM PDT Wednesday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 659 West Slopes of the Central Cascades Generally above 1500 Feet. * THUNDERSTORMS...Scattered thunderstorms with LAL 3 are expected to develop along and near the crest of the Cascades as early as late morning and most likely 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.

The National Weather Service in Seattle has issued a Red Flag Warning for dry thunderstorms and gusty outflow winds, which is in effect from 8 AM to 11 PM PDT Wednesday. * 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 to develop early as late morning and most likely 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.

Scattered thunderstorms containing little to no rainfall will be possible over much of North Central Washington Wednesday afternoon and evening. Any thunderstorms have the potential to produce gusty outflow winds that could travel quite a distance from the thunderstorm source. Isolated thunderstorms are possible elsewhere across Eastern Washington and North Idaho. The National Weather Service in Spokane has issued a Red Flag Warning for abundant lightning, which is in effect from 11 AM Wednesday to midnight PDT Wednesday night. The Fire Weather Watch is no longer in effect. * Affected Area: Fire Weather Zone 696 East Washington Central Cascades, Fire Weather Zone 697 East Portion of North Cascades National Park/Lake Chelan National Recreation Area, Fire Weather Zone 698 East Washington North Cascades, Fire Weather Zone 699 Okanogan Highlands and Kettle Mountains, Fire Weather Zone 702 Colville Reservation, Fire Weather Zone 703 Okanogan Valley, Fire Weather Zone 704 Methow Valley, Fire Weather Zone 705 Foothills of Central Washington Cascades and Fire Weather Zone 706 Waterville Plateau. * Thunderstorms: Scattered thunderstorms with abundant lightning, LAL 6. * 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 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.

Scattered thunderstorms containing little to no rainfall will be possible over much of North Central Washington Wednesday afternoon and evening. Any thunderstorms have the potential to produce gusty outflow winds that could travel quite a distance from the thunderstorm source. Isolated thunderstorms are possible elsewhere across Eastern Washington and North Idaho. The National Weather Service in Spokane has issued a Red Flag Warning for thunderstorms, which is in effect from noon Wednesday to midnight Wednesday night. * Affected Area: Fire Weather Zone 707 Western Columbia Basin and Fire Weather Zone 708 Eastern Columbia Basin - Palouse -Spokane Area. * Haines: High level haines of 6, which is very high. This means very dry and unstable conditions exist. * Humidity: 12 to 19 percent. * Outflow Winds: Gusty and erratic winds are possible with any thunderstorms that develop. Gusty winds from thunderstorms that develop over the Cascades and north central Washington could send an outflow boundary across the Columbia Basin, Palouse and Spokane area. * Thunderstorms: Thunderstorm coverage at this time looks to be isolated across the Basin, Palouse and Spokane area. * Impacts: Unstable conditions could lead to plume dominated fires. Rapid fire spread with any new or existing fires due to the gusty wind potential. These conditions may overwhelm initial attack capabilities.

The National Weather Service in Portland has issued a Red Flag Warning for thunderstorms, which is in effect from 11 PM this evening to 5 PM PDT Wednesday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Washington, Fire Weather Zone 634 Southern Gifford Pinchot National Forest and Fire Weather Zone 635 Mt. Adams Ranger District of the Gifford-Pinchot National Forest. * THUNDERSTORMS...Isolated to scattered thunderstorms. * IMPACTS...Lightning and critically dry fuels may result in numerous fire starts. Thunderstorm outflow winds may result in erratic fire spread. * IMPACTS...Frequent lightning and critically dry fuels may result in numerous fire starts. Thunderstorm outflow winds may result in erratic fire spread.

The National Weather Service in Portland has issued a Red Flag Warning for thunderstorms, which is in effect from 11 PM this evening to 11 AM PDT Wednesday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Washington, Fire Weather Zone 633 Clark County Lowlands and Swift Reservoir Region and Fire Weather Zone 636 Western Columbia River Gorge in Oregon and Washington. * THUNDERSTORMS...Isolated to scattered thunderstorms. * IMPACTS...Lightning and critically dry fuels may result in numerous fire starts. Thunderstorm outflow winds may result in erratic fire spread. * IMPACTS...Frequent lightning and critically dry fuels may result in numerous fire starts. Thunderstorm outflow winds may result in erratic fire spread.

The National Weather Service in Portland has issued a Red Flag Warning for thunderstorms, which is in effect from 11 PM this evening to 11 AM PDT Wednesday. * AFFECTED AREA...In Washington, Fire Weather Zone 632 Cowlitz County Foothills. * THUNDERSTORMS...Isolated to scattered thunderstorms. * IMPACTS...Frequent lightning and critically dry fuels may result in numerous fire starts. Thunderstorm outflow winds may result in erratic fire spread.

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.

...ISOLATED THUNDERSTORMS AND DRY, UNSTABLE CONDITIONS THIS AFTERNOON, OVERNIGHT, AND WEDNESDAY... A low pressure system will move north-northeastward into the Pacific Northwest late today through Wednesday night. This system will provide enough moisture and elevated instability for high- based showers and isolated thunderstorms to develop late this afternoon, overnight, and Wednesday. * AFFECTED AREA...Fire Weather Zones 690 Kittitas Valley, 694 Yakama Alpine District and 695 East Washington South Central Cascade Mountains. * IMPACTS...Any lightning strikes combined with hot and dry conditions can create new fire starts. * THUNDERSTORMS...Isolated to scattered thunderstorms are possible.

...ISOLATED THUNDERSTORM CHANCES THIS AFTERNOON, OVERNIGHT, AND WEDNESDAY... A low pressure system will move north-northeastward into the Pacific Northwest late today through Wednesday night. This system will provide enough moisture and elevated instability for high- based showers and isolated thunderstorms to develop late this afternoon, overnight, and Wednesday. * AFFECTED AREA...Fire Weather Zones 690 Kittitas Valley, 694 Yakama Alpine District and 695 East Washington South Central Cascade Mountains. * IMPACTS...Any lightning strikes combined with hot and dry conditions can create new fire starts. * THUNDERSTORMS...Isolated to scattered thunderstorms are possible.

* AFFECTED AREA...Fire Weather Zone 658 West Slopes of the North Cascades Generally above 1500 Feet and Fire Weather Zone 659 West Slopes of the Central Cascades Generally above 1500 Feet. * THUNDERSTORMS...Scattered thunderstorms with LAL 3. * 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.

* WHAT...Hot conditions during the day for the valleys. Highs 93 to 105. Overnight lows mainly in the upper 50s and 60s. * WHERE...Portions of North and North Central Idaho and Central, East Central, North Central, Northeast, and Southeast Washington. * WHEN...From noon today to 10 PM PDT Thursday. * IMPACTS...Heat will increase the risk of heat-related illnesses, especially those without effective cooling or adequate hydration.

* WHAT...Daytime temperatures between 95 to 100 expected. Overnight lows between 65 to 70 will limit chances to recover from the heat Tuesday night. * WHERE...In Oregon, Central Columbia River Gorge I-84 Corridor, East Portland Metro, Inner Portland Metro, and West Columbia River Gorge I-84 Corridor. In Washington, Central Columbia River Gorge SR 14 Corridor, East Clark County Lowlands, Inner Vancouver Metro, and West Columbia River Gorge SR 14 Corridor. * WHEN...From 11 AM this morning to 8 AM PDT Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses.

* WHAT...Dangerously hot conditions. Afternoon high temperatures of 95 to 103 degrees accompanied by overnight low temperatures in the mid-60s to lower 70s. This will pose a major risk of heat-related illness. * WHERE...Kittitas Valley and Yakima Valley. * WHEN...From noon today to 10 PM PDT Thursday. * 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 95 to 105 degrees accompanied by overnight low temperatures in the lower 60s to lower 70s. This will pose a major risk of heat-related illness. * WHERE...Lower Columbia Basin of Oregon and Washington. * WHEN...From noon today to 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...Hot conditions. Afternoon high temperatures of 95 to 105 degrees accompanied by overnight low temperatures in the lower 60s to mid-70s. This will pose a moderate to locally major risk of heat-related illness. * WHERE...Eastern Columbia River Gorge of Oregon and Washington, Foothills of the Northern Blue Mountains of Oregon, and Foothills of the Blue Mountains of Washington. * WHEN...From noon today to 10 PM PDT Wednesday. * 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.