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...DRY AND LOCALLY BREEZY FRIDAY AND SATURDAY... .Breezy winds will develop Friday afternoon and evening through the Kittitas Valley and will be coincident with low relative humidities. Saturday, locally breezy winds and critically low relative humidities are anticipated across central Oregon. * AFFECTED AREA...Fire Weather Zones 610 East Slopes of Central Oregon Cascades, 611 Deschutes National Forest and 640 Central Mountains of Oregon. * WINDS...Northwest 10 to 15 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...As low as 6 percent. * IMPACTS...Locally breezy conditions combined with very low relative humidity will promote conditions conducive to rapid fire spread and extreme fire behavior.

* WHAT...Dangerously hot conditions possible with maximum temperatures 100-104 Saturday, increasing to 105-110 by Wednesday. * WHERE...Portions of southwest Idaho and northeast and southeast Oregon. * WHEN...From Saturday afternoon through Thursday evening. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...Multiple daily max temperature records are being threatened by this heatwave. The longevity of the event makes this a particularly dangerous heat wave.

...DRY AND BREEZY CONDITIONS FRIDAY AFTERNOON... .A weak weather system Friday will produce gusty winds and low relative humidity in the Cascade gaps and Waterville Plateau. * Affected Area: Fire Weather Zone 705 Foothills of Central Washington Cascades (Zone 705) and Fire Weather Zone 706 Waterville Plateau (Zone 706). * Winds: West 10 to 20 mph with gusts up to 30 mph. * Relative Humidities: 10 to 18 percent. * Impacts: Any new or existing fires will have the potential to spread rapidly.

* WHAT...Hot conditions with temperatures in the upper 80s and 90s expected. This will pose a moderate to major risk of heat-related illness. * WHERE...Portions of northwest and west central Washington. * WHEN...From noon Friday to 10 PM PDT Monday. * IMPACTS...This level of 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. * ADDITIONAL DETAILS...Temperatures will remain well above normal next week with only gradual cooling expected.

* WHAT...Hot conditions with temperatures in the upper 70s and 80s near the coast. Temperatures in the upper 80s and 90s away from the coast. This will pose a moderate risk of heat-related illness. * WHERE...Central Coast, North Coast, and Western Strait of Juan De Fuca. * WHEN...From noon Friday to 10 PM PDT Sunday. * 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. * ADDITIONAL DETAILS...Marine air may move into coastal areas Sunday and Monday providing relief. However, well above-normal temperatures will persist inland well into next week.

The National Weather Service in Medford has issued a Fire Weather Watch, which is in effect from Saturday afternoon through Sunday evening. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * AFFECTED AREA...Fire weather zones 616...620...621...622 & 623. * WIND...Northwest wind increasing to 10-16 mph with gusts as high as 25 mph. * HUMIDITY...8 to 15 percent. * DETAILEDURL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

The National Weather Service in Medford has issued a Red Flag Warning, which is in effect from 4 PM to 8 PM PDT Friday. a Fire Weather Watch has also been issued. This Fire Weather Watch is in effect from Saturday afternoon through Sunday evening. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * AFFECTED AREA...Fire weather zones 616...620...621...622 & 623. * WIND...Northwest wind increasing to 8-14 mph with gusts as high as 20 mph. Wind strongest over the Umpqua Divide, across the Cascades and Siskiyous, and Ashland. * HUMIDITY...8 to 15 percent. * DETAILEDURL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

The National Weather Service in Medford has issued a Red Flag Warning, which is in effect from 4 PM to 8 PM PDT Friday. a Fire Weather Watch has also been issued. This Fire Weather Watch is in effect from Saturday afternoon through Sunday evening. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * AFFECTED AREA...Fire weather zones 616...620...621...622 & 623. * WIND...Northwest wind increasing to 8-14 mph with gusts as high as 20 mph. Wind strongest over the Umpqua Divide, across the Cascades and Siskiyous, and Ashland. * HUMIDITY...8 to 15 percent. * DETAILEDURL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

The National Weather Service in Seattle has issued a Fire Weather Watch for hot, dry and unstable conditions, which is in effect from Saturday morning through Sunday evening. * 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. * RELATIVE HUMIDITY...As low as 15 to 25 percent. * TEMPERATURES...Up to 80 to 90 degrees Fahrenheit. * MID-LEVEL HAINES...6 * IMPACTS...A dry and unstable air mass with warm temperatures can contribute to active fire behavior. In western Washington, significant growth on existing fires takes place under such conditions. If a fire were to begin, air quality may diminish in the surrounding area.

* WHAT...High temperatures of 95 to 100 degrees with lows in the upper 50's expected over multiple days. * WHERE...In California, Modoc County and eastern Siskiyou County. This includes the cities and communities of Macdoel, Tulelake, Pondosa, Bray, Tennant, Dorris Tionesta, Alturas, and Adin. In Oregon, Klamath and Lake Counties. This includes the cities of Klamath Falls, Chemult, Summer Lake, Chiloquin, Malin, Keno, Sprague River, and Lakeview * WHEN...Until 9 PM PDT Monday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Area rivers will be cold and can cause shock to swimmers. * ADDITIONAL DETAILS...This will be a long-duration heatwave with temperatures lingering through at least Monday.

* WHAT...High temperatures between 105 to 110 with low temperatures in the mid to upper 60's expected over multiple days. * WHERE...Central Douglas County and Eastern Douglas County Foothills. This includes the cities of Roseburg, Toketee Falls, Sutherlin. * WHEN...Until 9 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events, particularly for those working or participating in outdoor activities. Area rivers will be cold and can cause shock to swimmers. * ADDITIONAL DETAILS...This will be a multi day heat wave with the warmest temperatures on Friday and Saturday.

* WHAT...Dangerously hot conditions with high temperatures of 100 to 115 and low temperatures in the upper 60s expected over multiple days. Overnight low temperatures will remain in the mid to upper 60s. * WHERE...In California, western and central Siskiyou County. This includes the cities of Yreka, Weed, Etna, and Happy Camp, Mt Shasta City, and Dunsmuir. In Oregon, Josephine and Jackson counties and eastern Curry County. This includes the entire Rogue Valley and the cities of Medford, Grants Pass, Cave Junction, and Butte Falls. * WHEN...Until 9 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Area rivers will be cold and can cause shock to swimmers. * ADDITIONAL DETAILS...This will be a multi day heat wave with the warmest temperatures on Friday and Saturday. The Medford Airport has a 40% chance to tie or exceed the all time temperature record of 115.

* WHAT...Dangerously hot conditions during the day with little relief overnight. Highs will be in the 90s to 100s. Overnight lows will be in 60s to low 70s. * WHERE...Portions of North and North Central Idaho and Central, East Central, North Central, Northeast, and Southeast Washington. * WHEN...From noon Saturday to 10 PM PDT Friday, July 12. * IMPACTS...Heat related illnesses increase significantly during extreme heat.

* WHAT...Dangerously hot conditions during the day for the valleys. Highs will be in the 90s. Overnight lows will be in 50s to low 60s. * WHERE...Stehekin, Holden Village, and Stevens Pass. * WHEN...From noon Saturday to 10 PM PDT Friday, July 12. * IMPACTS...Hot temperatures may cause heat illnesses.

* WHAT...Dangerously hot conditions during the day for the valleys. Highs will be in the 90s. Overnight lows will be in 50s to low 60s. * WHERE...Fruitland, Sandpoint, Newport, Sherman Pass, St. Maries, Priest River, Boulder Creek Road, Highway 20 Wauconda Summit, Springdale-Hunters Road, Inchelium, Lookout Pass, Dobson Pass, Fourth Of July Pass, Flowery Trail Road, Wauconda, Wallace, Mullan, Eastport, Osburn, Kellogg, Metaline Falls, Deer Park, Clark Fork, Fernwood, Northport, Kettle Falls, Chewelah, Ione, Metaline, Republic, Schweitzer Mountain Road, Tiger, Athol, Pinehurst, Chesaw Road, Bonners Ferry, Orin-Rice Road, and Colville. * WHEN...From noon Sunday to 10 PM PDT Friday, July 12. * IMPACTS...Hot temperatures may cause heat illnesses.

...DRY AND LOCALLY BREEZY FRIDAY AND SATURDAY... .Breezy winds will develop Friday afternoon and evening through the Kittitas Valley and be coincident with low relative humidities. Saturday, locally breezy winds and critically low relative humidities are anticipated across central Oregon. * AFFECTED AREA...Fire Weather Zone 690 Kittitas Valley. * WINDS...West 15-20 mph with gusts of 20-35 mph. * RELATIVE HUMIDITY...As low as 10-15 percent. * IMPACTS...Breezy conditions combined with low relative humidity will promote conditions conducive to rapid fire spread and extreme fire behavior.

...DRY AND LOCALLY BREEZY FRIDAY AND SATURDAY... .Breezy winds will develop Friday afternoon and evening through the Kittitas Valley and be coincident with low relative humidities. Saturday, locally breezy winds and critically low relative humidities are anticipated across central Oregon. 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 Zones 610 East Slopes of Central Oregon Cascades, 611 Deschutes National Forest -minus Sisters Ranger District and 640 Central Mountains of Oregon. * WINDS...Northwest 10-15 mph with gusts of 15-25 mph. * RELATIVE HUMIDITY...As low as 5-10 percent. * IMPACTS...Locally breezy conditions combined with very low relative humidity will promote conditions conducive to rapid fire spread and extreme fire behavior.

* WHAT...Afternoon temperatures in the upper 80s to middle 90s expected. A few spots could reach close to 100 deg, mainly those lower valleys located towards the Willamette Valley. * WHERE...In Oregon, North Oregon Cascades, Cascades of Lane County, and Cascades of Marion and Linn Counties. In Washington, South Washington Cascades. * WHEN...Until 8 PM PDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses.

* WHAT...Dangerously hot conditions with temperatures 100 to 105 expected. Overnight temperatures will also be very warm and limit chances to recover from the heat, with lows ranging from the mid 60s to low 70s. * WHERE...Portions of northwest and west central Oregon and southwest Washington. * WHEN...Until 8 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

* WHAT...Afternoon temperatures in the upper 80s to middle 90s expected. A few spots could reach close to 100 deg, mainly those lower valleys located towards the Willamette Valley. * WHERE...In Oregon, North Oregon Cascades, Cascades of Lane County, and Cascades of Marion and Linn Counties. In Washington, South Washington Cascades. * WHEN...Until 8 PM PDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses.