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The National Weather Service in Spokane has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Thursday afternoon through Thursday 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: West 15 to 20 mph with gusts up to 35 mph. * Relative Humidities: 15 to 20 percent. * Impacts: Any new or existing fires will have the potential to spread rapidly.

The National Weather Service in Spokane has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 2 PM to 9 PM PDT Wednesday. * Affected Area: Fire Weather Zone 703 Okanogan Valley (Zone 703). * Winds: Southwest 10 to 20 mph with gusts up to 35 mph. * Relative Humidities: 14 to 20 percent. * Impacts: Any new or existing fires will have the potential to spread rapidly.

...RED FLAG WARNING FOR WEDNESDAY AFT/EVE FOR LIGHTNING... .A cold front, along with plenty of moisture and upper level energy, will help initiate scattered to numerous thunderstorms Wednesday afternoon and evening across the entire area. Wind gusts 50-70 mph are possible with thunderstorms. Winds across southeast Oregon will become moderate (15-25 mph with gusts 30- 40 mph) from late afternoon into the evening, adding to the concern. Storms will have wet cores with wetting rain likely, but most areas will see lower amounts. Debris flows may occur on fresh burn scars. * Thunderstorms...Scattered to numerous. * Outflow Winds...50-70 mph possible. * Timing...From noon MDT /11 AM PDT/ Wednesday to midnight MDT /11 PM PDT/ Wednesday night.

* WHAT...Temperatures up to 101. * WHERE...Portions of south central and southwest Idaho and northeast and southeast Oregon. * WHEN...Until 9 PM MDT /8 PM PDT/ Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses to occur.

* WHAT...Dangerously hot conditions with temperatures up to 105. * WHERE...Portions of southwest and west central Idaho and southeast Oregon. * WHEN...Until 9 PM MDT /8 PM PDT/ Wednesday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

The National Weather Service in Medford has issued a Fire Weather Watch, which is in effect from Thursday afternoon through Thursday evening. * IMPACTS...For Wednesday, 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. For Thursday, combined strong winds and low relative humidity can lead to rapid growth and spread of new and existing fires. * AFFECTED AREA...For Wednesday, in California...Eastern fire weather zone 285 and in Oregon...fire weather zone 625. For Thursday, nearly all of fire weather zones 285 and 625. * WEDNESDAY THUNDERSTORMS...Isolated to scattered thunderstorms with very little precipitation in the afternoon and evening. Lightning strikes outside of precipitation cores are possible. Strong, gusty outflow winds of 50 to 60 mph are possible in any of the stronger storms. * THURSDAY WIND...Southwest 20 to 30 mph with gusts to 40 mph. * THURSDAY MINIMUM HUMIDITY...10 to 15 percent. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

The National Weather Service in Medford has issued a Fire Weather Watch, which is in effect from Thursday afternoon through Thursday evening. * IMPACTS...Combined strong winds and low relative humidity can lead to rapid growth and spread of new and existing fires. * AFFECTED AREA...In Oregon...Fire weather zone 624. * WIND...Southwest 20 to 30 mph with gusts to 40 mph. * MINIMUM HUMIDITY...10 to 15 percent. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

The National Weather Service in Medford has issued a Fire Weather Watch, which is in effect from Thursday afternoon through Thursday evening. * IMPACTS...For Wednesday, 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. For Thursday, combined strong winds and low relative humidity can lead to rapid growth and spread of new and existing fires. * AFFECTED AREA...For Wednesday, in California...Eastern fire weather zone 285 and in Oregon...fire weather zone 625. For Thursday, nearly all of fire weather zones 285 and 625. * WEDNESDAY THUNDERSTORMS...Isolated to scattered thunderstorms with very little precipitation in the afternoon and evening. Lightning strikes outside of precipitation cores are possible. Strong, gusty outflow winds of 50 to 60 mph are possible in any of the stronger storms. * THURSDAY WIND...Southwest 20 to 30 mph with gusts to 40 mph. * THURSDAY MINIMUM HUMIDITY...10 to 15 percent. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* WHAT...Flash flooding and debris flows caused by excessive rainfall are possible over the Falls, Cow Valley, Durkee burn scars. * WHERE...Fire burn scars in southeast Oregon, including Falls, Cow Valley, and Durkee. * WHEN...From Wednesday afternoon through Wednesday evening. * IMPACTS...Heavy rainfall from thunderstorms over the Falls, Cow Valley, Durkee burn scars is possible up to and during the period of the watch. Residents near the Falls, Cow Valley, Durkee burn scars should prepare for potential flooding impacts. Be sure to stay up to date with information from local authorities. Heavy rainfall from thunderstorms could trigger flash flooding of low-lying areas, debris flows, and mud flows in and near recent wildfire burn scars. * ADDITIONAL DETAILS... - National Weather Service Meteorologists are forecasting thunderstorms capable of producing heavy rainfall over the burn scars. - http://www.weather.gov/safety/flood

...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS WEDNESDAY AFTERNOON AND EVENING... .An upper level trough offshore will be increasing instability and moisture across the area, especially across the Blue mountains. Thunderstorms will begin to develop early in the afternoon across south central Oregon, and move across eastern and northeastern Oregon as well as across far southeastern Washington throughout the afternoon and evening. Thunderstorms will be capable of strong outflows, small hail, and abundant lightning. The National Weather Service in Pendleton has issued a Red Flag Warning for abundant lightning, which is in effect from 2 PM to 11 PM PDT Wednesday. * AFFECTED AREA...Fire Weather Zones 692 Blue Mountains of Washington and 693 Southeast Washington Grande Ronde Valley. * IMPACTS...Any lightning strikes combined with hot and dry conditions could cause new fire starts. * THUNDERSTORMS...Isolated to widely scattered. Lightning activity level of 2 to 3. * OUTFLOW WINDS...40 to 50 mph. Thunderstorm outflow winds may result in erratic fire spread.

...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS WEDNESDAY AFTERNOON AND EVENING... .An upper level trough offshore will be increasing instability and moisture across the area, especially across the Blue mountains. Thunderstorms will begin to develop early in the afternoon across south central Oregon, and move across eastern and northeastern Oregon as well as across far southeastern Washington throughout the afternoon and evening. Thunderstorms will be capable of strong outflows, small hail, and abundant lightning. The National Weather Service in Pendleton has issued a Fire Weather Watch for abundant lightning, which is in effect from Wednesday afternoon through Wednesday evening. * AFFECTED AREA...Fire Weather Zones 643 Northern Blue Mountains along the eastern half, Oregon and 644 Central Blue Mountains mainly east of US 395 and the Battle Mountain Fire Complex. * IMPACTS...Any lightning strikes combined with hot and dry conditions could cause new fire starts. * THUNDERSTORMS...Isolated to widely scattered. Lightning activity level of 2 to 3. * OUTFLOW WINDS...40 to 50 mph. Thunderstorm outflow winds may result in erratic fire spread.

...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS WEDNESDAY AFTERNOON AND EVENING... .An upper level trough offshore will be increasing instability and moisture across the area, especially across the Blue mountains. Thunderstorms will begin to develop early in the afternoon across south central Oregon, and move across eastern and northeastern Oregon as well as across far southeastern Washington throughout the afternoon and evening. Thunderstorms will be capable of strong outflows, small hail, and abundant lightning. The National Weather Service in Pendleton has issued a Red Flag Warning for abundant lightning, which is in effect from noon to 11 PM PDT Wednesday. * AFFECTED AREA...Fire Weather Zones 642 Southern Blue and Strawberry Mountains and 645 Wallowa District. * IMPACTS...Any lightning strikes combined with hot and dry conditions could cause new fire starts. * THUNDERSTORMS...Isolated to widely scattered. Lightning activity level of 2 to 3. * OUTFLOW WINDS...45 to 60 mph. Thunderstorm outflow winds may result in erratic fire spread.

* WHAT...High concentration of smoke particulates from wildfire smoke. * WHERE...Baker, Harney, and Malheur Counties. * WHEN....AIR QUALITY ALERT IN EFFECT UNTIL FRIDAY. * IMPACTS...Smoke can irritate the eyes, lungs and worsen some medical conditions. People most at risk to adverse health effects include infants, young children, people with heart or lung disease, older adults, and pregnant women. * ADDITIONAL DETAILS...Smoke levels can change rapidly depending on weather. Check current conditions on the Oregon Smoke Information Blog, DEQ's Air Quality Index, or by downloading the free OregonAIR app on your smartphone.

The National Weather Service in Medford has issued a Red Flag Warning, which is in effect from 11 AM to 11 PM PDT Wednesday. * IMPACTS...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...In CAZ285...Eastern fire weather zone 285. In ORZ625...Fire weather zone 625. * THUNDERSTORMS...Isolated to scattered thunderstorms with very little to no precipitation. Lightning strikes outside of precipitation cores are possible. * OUTFLOW WINDS...50 to 60 mph. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

...RED FLAG WARNING FOR WEDNESDAY AFT/EVE FOR LIGHTNING... .A cold front, along with plenty of moisture and upper level energy, will allow for scattered to numerous thunderstorms Wednesday afternoon and evening across the entire area. Wind gusts 50-70 mph are possible. Winds behind the front will become moderate (15-25 mph with higher gusts) across southeast Oregon, adding to the concern. Storms will have wet cores with wetting rain likely, but most areas will see lower amounts. The National Weather Service in Boise has issued a Red Flag Warning for lightning, which is in effect from noon MDT /11 AM PDT/ Wednesday to midnight MDT /11 PM PDT/ Wednesday night. * Thunderstorms...Scattered to numerous. * Outflow Winds...50-70 mph possible. * Timing...From noon MDT /11 AM PDT/ Wednesday to midnight MDT /11 PM PDT/ Wednesday night.

* WHAT...High concentration of smoke particulates from wildfire smoke. * WHERE...Baker, Harney, and Malheur Counties. * WHEN...AIR QUALITY ALERT IN EFFECT UNTIL FURTHER NOTICE. * IMPACTS...Smoke can irritate the eyes, lungs and worsen some medical conditions. People most at risk to adverse health effects include infants, young children, people with heart or lung disease, older adults, and pregnant women. * ADDITIONAL DETAILS...Smoke levels can change rapidly depending on weather. Check current conditions on the Oregon Smoke Information Blog, DEQ's Air Quality Index, or by downloading the free OregonAIR app on your smartphone.

* WHAT...Temperatures up to 101. * WHERE...Portions of south central and southwest Idaho and northeast and southeast Oregon. * WHEN...Until 9 PM MDT /8 PM PDT/ Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses to occur.

* WHAT...Dangerously hot conditions with temperatures up to 105. * WHERE...Portions of southwest and west central Idaho and southeast Oregon. * WHEN...Until 9 PM MDT /8 PM PDT/ Wednesday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

* WHAT...West winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Eastern Columbia River Gorge of Oregon and Washington. * WHEN...Until midnight PDT tonight. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Kittitas Valley. * WHEN...Until midnight PDT tonight. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.