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* 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

...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING FOR STRONG, GUSTY WINDS AND LOW RH FOR FIRE WEATHER ZONES 285 AND 625... * IMPACTS...For today, 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 today, 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. * THUNDERSTORMS TODAY...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

...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS WEDNESDAY AFTERNOON AND EVENING... An offshore upper level trough will bring increasing instability and moisture across the area. Thunderstorms will begin to develop early in the afternoon on Wednesday 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. * 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 offshore upper level trough will bring increasing instability and moisture across the area. Thunderstorms will begin to develop early in the afternoon on Wednesday 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. * 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.

...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS WEDNESDAY AFTERNOON AND EVENING... An offshore upper level trough will bring increasing instability and moisture across the area. Thunderstorms will begin to develop early in the afternoon on Wednesday 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 today to 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 and 644 Central Blue Mountains. * 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.

* WHAT...Flash flooding and debris flows caused by excessive rainfall continue to be possible over the Falls, Cow Valley, Durkee burn scar. * WHERE...Portions of northeast and southeast Oregon, including the following areas, in northeast Oregon, Baker County. In southeast Oregon, Harney County, Malheur County and Oregon Lower Treasure Valley. * WHEN...From 1 PM PDT /2 PM MDT/ this afternoon through this evening. * IMPACTS...Heavy rainfall over the Falls, Cow Valley, Durkee burn scar is expected up to and during the period of the watch. Residents near the Falls, Cow Valley, Durkee burn scar should prepare for potential flooding impacts. Be sure to stay up to date with information from local authorities. Heavy rainfall could trigger flash flooding of low-lying areas, urbanized street flooding, and debris 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

* WHAT...Temperatures up to 100. * WHERE...Portions of south central and southwest Idaho and northeast and southeast Oregon. * WHEN...Until 9 PM MDT /8 PM PDT/ this evening. * IMPACTS...Hot temperatures may cause heat illnesses to occur.

* WHAT...Dangerously hot conditions with temperatures up to 104. * WHERE...Portions of southwest and west central Idaho and southeast Oregon. * WHEN...Until 9 PM MDT /8 PM PDT/ this evening. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

At 1059 PM PDT, Doppler radar was tracking a strong thunderstorm near Westfall, or 42 miles west of Ontario, moving northeast at 30 mph. HAZARD...Wind gusts up to 40-50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. This strong thunderstorm will be near... Buckbrush Poison Butte around 1210 AM MDT. Jamieson around 1240 AM MDT.

...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS WEDNESDAY AFTERNOON AND EVENING... An offshore upper level trough will bring increasing instability and moisture across the area. Thunderstorms will begin to develop early in the afternoon on Wednesday 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. * 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 offshore upper level trough will bring increasing instability and moisture across the area. Thunderstorms will begin to develop early in the afternoon on Wednesday 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. * 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.

...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS WEDNESDAY AFTERNOON AND EVENING... An offshore upper level trough will bring increasing instability and moisture across the area. Thunderstorms will begin to develop early in the afternoon on Wednesday 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. * AFFECTED AREA...Fire Weather Zones 643 Northern Blue Mountains of Oregon and 644 Central Blue Mountains. * 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.

An Air Quality Alert has been issued by the following agencies: Washington Department of Ecology Colville Confederated Tribes An Air Quality Alert, issued for all of Chelan County plus the Methow Valley down to Brewster in Okanogan County as well as the Colville Reservation 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.

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