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...ISOLATED TO SCATTERED THUNDERSTORMS TODAY... .Isolated to scattered thunderstorms are expected through afternoon across the Blue Mountains, adjacent foothills, and portions of the Columbia Basin as a weather system moves over the region. * AFFECTED AREA...Fire Weather Zones 643 Northern Blue Mountains of Oregon, 645 Wallowa District, 692 Blue Mountains of Washington and 693 Southeast Washington Grande Ronde Valley. * IMPACTS...New fire starts and rapid fire spread due to cloud- to-ground lightning and gusty outflow winds. * THUNDERSTORMS...Isolated to scattered thunderstorms producing abundant lightning and gusty outflow winds. Most storms will be accompanied by light rain. * OUTFLOW WINDS...Outflow winds are always possible with storms, and these storms will be capable of producing wind gusts of 30 to 45 mph.

...ISOLATED TO SCATTERED THUNDERSTORMS TODAY... .Isolated to scattered thunderstorms are expected through afternoon across the Blue Mountains, adjacent foothills, and portions of the Columbia Basin as a weather system moves over the region. The National Weather Service in Pendleton has issued a Red Flag Warning for abundant lightning, which is in effect until 8 PM PDT this evening. * AFFECTED AREA...Fire Weather Zone 641 Lower Columbia Basin of Oregon. * IMPACTS...New fire starts and rapid fire spread due to cloud- to-ground lightning and gusty outflow winds. * THUNDERSTORMS...Isolated to scattered thunderstorms producing abundant lightning and gusty outflow winds. Most storms will be accompanied by light rain. * OUTFLOW WINDS...Outflow winds are always possible with storms, and these storms will be capable of producing wind gusts of 30 to 45 mph.

...DRY AND BREEZY MONDAY AFTERNOON AND EARLY EVENING... The National Weather Service in Spokane has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Monday afternoon through Monday evening. * Affected Area: Fire Weather Zone 708 Eastern Columbia Basin - Palouse -Spokane Area (Zone 708) and Fire Weather Zone 709 Lower Palouse -Snake River (Zone 709). * Winds: Southwest 10 to 20 mph with gusts up to 30 mph. * Relative Humidities: 14 to 22 percent. * Impacts: Risk of rapidly spreading fires.

...ISOLATED TO SCATTERED THUNDERSTORMS TODAY... .Isolated thunderstorms have initiated across the southern Blue Mountains this morning. Additional development is expected through morning and afternoon across the Blue Mountains as a weather system moves over the region. The National Weather Service in Pendleton has issued a Red Flag Warning for abundant lightning, which is in effect until 11 PM PDT this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 643 Northern Blue Mountains of Oregon, 645 Wallowa District, 692 Blue Mountains of Washington and 693 Southeast Washington Grande Ronde Valley. * IMPACTS...New fire starts and rapid fire spread due to cloud- to-ground lightning and gusty outflow winds. * THUNDERSTORMS...Isolated to scattered thunderstorms producing abundant lightning and gusty outflow winds. Most storms will be accompanied by light rain. * OUTFLOW WINDS...Outflow winds are always possible with storms, and these storms will be capable of producing wind gusts of 30 to 45 mph.

...ISOLATED TO SCATTERED THUNDERSTORMS TODAY... .Isolated thunderstorms have initiated across the southern Blue Mountains this morning. Additional development is expected through morning and afternoon across the Blue Mountains as a weather system moves over the region. The National Weather Service in Pendleton has issued a Red Flag Warning for abundant lightning, which is in effect until 11 PM PDT this evening. * AFFECTED AREA...Fire Weather Zone 642 Southern Blue and Strawberry Mountains. * IMPACTS...New fire starts and rapid fire spread due to cloud- to-ground lightning and gusty outflow winds. * THUNDERSTORMS...Isolated to scattered thunderstorms producing abundant lightning and gusty outflow winds. Most storms will be accompanied by light rain. * OUTFLOW WINDS...Outflow winds are always possible with storms, and these storms will be capable of producing wind gusts of 30 to 45 mph.

...ISOLATED TO SCATTERED THUNDERSTORMS TODAY... .Isolated thunderstorms have initiated across the southern Blue Mountains this morning. Additional development is expected through morning and afternoon across the Blue Mountains as a weather system moves over the region. The National Weather Service in Pendleton has issued a Red Flag Warning for abundant lightning, which is in effect until 11 PM PDT this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 643 Northern Blue Mountains of Oregon, 645 Wallowa District, 692 Blue Mountains of Washington and 693 Southeast Washington Grande Ronde Valley. * IMPACTS...New fire starts and rapid fire spread due to cloud- to-ground lightning and gusty outflow winds. * THUNDERSTORMS...Isolated to scattered thunderstorms producing abundant lightning and gusty outflow winds. Most storms will be accompanied by light rain. * OUTFLOW WINDS...Outflow winds are always possible with storms, and these storms will be capable of producing wind gusts of 30 to 45 mph.

...ISOLATED TO SCATTERED THUNDERSTORMS TODAY... .Isolated thunderstorms have initiated across the southern Blue Mountains this morning. Additional development is expected through morning and afternoon across the Blue Mountains as a weather system moves over the region. The National Weather Service in Pendleton has issued a Red Flag Warning for abundant lightning, which is in effect until 11 PM PDT this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 644 Central Blue Mountains. * IMPACTS...New fire starts and rapid fire spread due to cloud- to-ground lightning and gusty outflow winds. * THUNDERSTORMS...Isolated to scattered thunderstorms producing abundant lightning and gusty outflow winds. Most storms will be accompanied by light rain. * OUTFLOW WINDS...Outflow winds are always possible with storms, and these storms will be capable of producing wind gusts of 30 to 45 mph.

...UNSTABLE CONDITIONS CONTINUE, WITH THUNDERSTORMS DEVELOPING ONCE AGAIN TONIGHT AND SUNDAY... .Unstable conditions will persist once again tomorrow, before an oncoming weather system shifts the threat from instability to that of thunderstorms. Storms are expected to develop over the eastern mountains tomorrow afternoon as well, however forecast confidence remains on the lower end, so will hold off on upgrading the watch there for now. * AFFECTED AREA...Fire Weather Zones 643 Northern Blue Mountains of Oregon, 644 Central Blue Mountains, 645 Wallowa District, 692 Blue Mountains of Washington and 693 Southeast Washington Grande Ronde Valley. * IMPACTS...New fire starts and rapid fire spread due to outflow winds. * THUNDERSTORMS...Scattered thunderstorms producing abundant lightning and gusty outflow winds. Most storms will be accompanied by light rain. * OUTFLOW WINDS...Outflow winds are always possible with storms, and these storms will be capable of 30 to 40 mph wind gusts.

...UNSTABLE CONDITIONS CONTINUE, WITH THUNDERSTORMS DEVELOPING ONCE AGAIN TONIGHT AND SUNDAY... .Unstable conditions will persist once again tomorrow, before an oncoming weather system shifts the threat from instability to that of thunderstorms. Storms are expected to develop over the eastern mountains tomorrow afternoon as well, however forecast confidence remains on the lower end, so will hold off on upgrading the watch there for now. * AFFECTED AREA...Fire Weather Zones 643 Northern Blue Mountains of Oregon, 644 Central Blue Mountains, 645 Wallowa District, 692 Blue Mountains of Washington and 693 Southeast Washington Grande Ronde Valley. * IMPACTS...New fire starts and rapid fire spread due to outflow winds. * THUNDERSTORMS...Scattered thunderstorms producing abundant lightning and gusty outflow winds. Most storms will be accompanied by light rain. * OUTFLOW WINDS...Outflow winds are always possible with storms, and these storms will be capable of 30 to 40 mph wind gusts.

* IMPACTS...Thunderstorms can cause new fire starts and spread fires quickly due to outflow winds. * AFFECTED AREA...In ORZ624...northern portions of fire weather zone 624 from Chemult north and northeast. In ORZ625... northern portions of Fire weather zone 625 from Summer Lake north. * THUNDERSTORMS...Isolated to scattered thunderstorms are expected to develop this afternoon and evening. Storms may be dry with little or no rainfall. * OUTFLOW WINDS...Strong, gusty outflows up to around 45 mph are expected near storms. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

...15-30% CHANCE OF THUNDERSTORMS PRODUCING DRY LIGHTNING SATURDAY AFTERNOON AND EVENING... * AFFECTED AREA...In Oregon, Fire Weather Zone 688 Mt. Hood National Forest Region. 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. * WINDS...Southeast 5 to 10 mph with gusts up to 15 mph. Brief and highly localized outflow wind gusts up to 40 mph possible with any shower or thunderstorm that passes by. * RELATIVE HUMIDITY...As low as 20 percent. * IMPACTS...Conditions may be favorable for rapid fire spread which may threaten life and property. Use extra caution with potential ignition sources, especially in grassy areas. Outdoor burning is not recommended. * ADDITIONAL DETAILS...There is a 15-30% chance of thunderstorms through 8 PM PDT Saturday over the Cascade mountains. Very little to no rainfall will accompany any thunderstorm that does develop, increasing the potential for dry lightning igniting new wildfire starts.

...15-30% CHANCE OF THUNDERSTORMS PRODUCING DRY LIGHTNING SATURDAY AFTERNOON AND EVENING... * AFFECTED AREA...In Oregon, Fire Weather Zone 688 Mt. Hood National Forest Region. 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. * WINDS...Southeast 5 to 10 mph with gusts up to 15 mph. Brief and highly localized outflow wind gusts up to 40 mph possible with any shower or thunderstorm that passes by. * RELATIVE HUMIDITY...As low as 20 percent. * IMPACTS...Conditions may be favorable for rapid fire spread which may threaten life and property. Use extra caution with potential ignition sources, especially in grassy areas. Outdoor burning is not recommended. * ADDITIONAL DETAILS...There is a 15-30% chance of thunderstorms through 8 PM PDT Saturday over the Cascade mountains. Very little to no rainfall will accompany any thunderstorm that does develop, increasing the potential for dry lightning igniting new wildfire starts.

...15-20% CHANCE OF THUNDERSTORMS PRODUCING DRY LIGHTNING SATURDAY AFTERNOON AND EVENING... * AFFECTED AREA...In Oregon, Fire Weather Zone 689 Northern Willamette National Forest and Fire Weather Zone 690 Southern Willamette National Forest. * WINDS...West around 5 mph with gusts up to 10 mph. Brief and highly localized outflow wind gusts up to 40 mph possible with any shower or thunderstorm that passes by. * RELATIVE HUMIDITY...As low as 25 percent. * IMPACTS...Conditions may be favorable for rapid fire spread which may threaten life and property. Use extra caution with potential ignition sources, especially in grassy areas. Outdoor burning is not recommended. * ADDITIONAL DETAILS...There is a 15-20% chance of thunderstorms through 8 PM PDT Saturday over the Cascade mountains. Very little to no rainfall will accompany any thunderstorm that does develop, increasing the potential for dry lightning igniting new wildfire starts.

The National Weather Service in Medford has issued a Red Flag Warning, which is in effect until 9 PM PDT this evening. * IMPACTS...Any fires that develop will likely spread rapidly. * AFFECTED AREA...In ORZ624...northern portions of fire weather zone 624 from Chemult north and northeast. In ORZ625...northern portions of Fire weather zone 625 from Summer Lake north. * THUNDERSTORMS...Isolated to scattered thunderstorms are expected to develop this afternoon and evening. Storms may be dry with little or no rainfall. * OUTFLOW WINDS...Strong, gusty outflows up to around 45 mph are expected near storms. * DETAILEDURL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

...UNSTABLE CONDITIONS CONTINUE, WITH THUNDERSTORMS DEVELOPING ONCE AGAIN TONIGHT AND SUNDAY... .Unstable conditions will persist once again today, before an oncoming weather system shifts the threat from instability to that of thunderstorms. Clearing has been observed across central Oregon, and with that, scattered thunderstorms are expected to develop this evening. Storms are expected to develop over the eastern mountains tomorrow afternoon as well, however forecast confidence remains on the lower end, so will hold off on upgrading the watch there for now. The National Weather Service in Pendleton has issued a Fire Weather Watch for abundant lightning, which is in effect from Sunday morning through Sunday evening. * AFFECTED AREA...Fire Weather Zone 692 Blue Mountains of Washington. * IMPACTS...New fire starts and rapid fire spread due to outflow winds. * THUNDERSTORMS...Scattered thunderstorms producing abundant lightning and gusty outflow winds. Most storms will be accompanied by light rain. * OUTFLOW WINDS...Outflow winds are always possible with storms, and these storms will be capable of 30 to 40 mph wind gusts.

...UNSTABLE CONDITIONS CONTINUE, WITH THUNDERSTORMS DEVELOPING ONCE AGAIN TONIGHT AND SUNDAY... .Unstable conditions will persist once again today, before an oncoming weather system shifts the threat from instability to that of thunderstorms. Clearing has been observed across central Oregon, and with that, scattered thunderstorms are expected to develop this evening. Storms are expected to develop over the eastern mountains tomorrow afternoon as well, however forecast confidence remains on the lower end, so will hold off on upgrading the watch there for now. * AFFECTED AREA...Fire Weather Zones 643 Northern Blue Mountains of Oregon, 644 Central Blue Mountains, 645 Wallowa District and 693 Southeast Washington Grande Ronde Valley. * IMPACTS...New fire starts and rapid fire spread due to outflow winds. * THUNDERSTORMS...Scattered thunderstorms producing abundant lightning and gusty outflow winds. Most storms will be accompanied by light rain. * OUTFLOW WINDS...Outflow winds are always possible with storms, and these storms will be capable of 30 to 40 mph wind gusts.

...UNSTABLE CONDITIONS CONTINUE, WITH THUNDERSTORMS DEVELOPING ONCE AGAIN TONIGHT AND SUNDAY... .Unstable conditions will persist once again today, before an oncoming weather system shifts the threat from instability to that of thunderstorms. Clearing has been observed across central Oregon, and with that, scattered thunderstorms are expected to develop this evening. Storms are expected to develop over the eastern mountains tomorrow afternoon as well, however forecast confidence remains on the lower end, so will hold off on upgrading the watch there for now. * AFFECTED AREA...Fire Weather Zones 643 Northern Blue Mountains of Oregon, 644 Central Blue Mountains, 645 Wallowa District and 693 Southeast Washington Grande Ronde Valley. * IMPACTS...New fire starts and rapid fire spread due to outflow winds. * THUNDERSTORMS...Scattered thunderstorms producing abundant lightning and gusty outflow winds. Most storms will be accompanied by light rain. * OUTFLOW WINDS...Outflow winds are always possible with storms, and these storms will be capable of 30 to 40 mph wind gusts.

...UNSTABLE CONDITIONS CONTINUE, WITH THUNDERSTORMS DEVELOPING ONCE AGAIN TONIGHT AND SUNDAY... .Unstable conditions will persist once again today, before an oncoming weather system shifts the threat from instability to that of thunderstorms. Clearing has been observed across central Oregon, and with that, scattered thunderstorms are expected to develop this evening. Storms are expected to develop over the eastern mountains tomorrow afternoon as well, however forecast confidence remains on the lower end, so will hold off on upgrading the watch there for now. The National Weather Service in Pendleton has issued a Red Flag Warning for abundant lightning, which is in effect until 11 PM PDT this evening. * AFFECTED AREA...Fire Weather Zones 610 East Slopes of Central Oregon Cascades and 611 Deschutes National Forest -minus Sisters Ranger District. * TIMING...Now through Saturday evening. * RELATIVE HUMIDITY...As low as 15 percent. * TEMPERATURES...Up to 85. * IMPACTS...New fire starts, as well as rapid fire spread due to outflow winds. * ADDITIONAL INFORMATION...Isolated to scattered thunderstorms are forecast for this afternoon and evening that may also bring new starts to the area. * THUNDERSTORMS...Scattered thunderstorms producing abundant lightning and gusty outflow winds. Storms are expected to be dry in nature. * OUTFLOW WINDS...Storms may be capable of producing outflow winds up to and over 40 mph.

...UNSTABLE CONDITIONS CONTINUE, WITH THUNDERSTORMS DEVELOPING ONCE AGAIN TONIGHT AND SUNDAY... .Unstable conditions will persist once again today, before an oncoming weather system shifts the threat from instability to that of thunderstorms. Clearing has been observed across central Oregon, and with that, scattered thunderstorms are expected to develop this evening. Storms are expected to develop over the eastern mountains tomorrow afternoon as well, however forecast confidence remains on the lower end, so will hold off on upgrading the watch there for now. The National Weather Service in Pendleton has issued a Red Flag Warning for abundant lightning, which is in effect until 11 PM PDT this evening. The previous Red Flag Warning for dry and unstable conditions is no longer in effect. * AFFECTED AREA...Fire Weather Zone 640 Central Mountains of Oregon. * TIMING...Now through Saturday evening. * RELATIVE HUMIDITY...As low as 12 percent. * TEMPERATURES...Up to 90. * IMPACTS...New fire starts, as well as rapid fire spread due to outflow winds. * ADDITIONAL INFORMATION...Light shower activity and cloud cover this morning has brought the Haines Index in the area below critical thresholds. Dry thunderstorms are now the primary critical fire weather threat for the zone. * THUNDERSTORMS...Scattered thunderstorms producing abundant lightning and gusty outflow winds. Storms are expected to be dry in nature. * OUTFLOW WINDS...Storms may be capable of producing outflow winds up to and over 40 mph.

...UNSTABLE CONDITIONS CONTINUE, WITH THUNDERSTORMS DEVELOPING ONCE AGAIN TONIGHT AND SUNDAY... .Unstable conditions will persist once again today, before an oncoming weather system shifts the threat from instability to that of thunderstorms. Clearing has been observed across central Oregon, and with that, scattered thunderstorms are expected to develop this evening. Storms are expected to develop over the eastern mountains tomorrow afternoon as well, however forecast confidence remains on the lower end, so will hold off on upgrading the watch there for now. * AFFECTED AREA...Fire Weather Zone 642 Southern Blue and Strawberry Mountains. * TIMING...Now through Saturday evening. * RELATIVE HUMIDITY...As low as 11 percent. * TEMPERATURES...Up to 87. * IMPACTS...Possible plume dominated fire behavior. * ADDITIONAL INFORMATION...Isolated thunderstorms are forecast for this afternoon and evening that may also bring new starts to the area. * HAINES...As high as 6.