Aggregator

* 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 Tuesday to 8 AM PDT Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses.

Oregon Department of Environmental Quality has issued an Air Quality Advisory...IN EFFECT UNTIL NOON PDT WEDNESDAY. A Smoke Air Quality Advisory has been issued. Wildfires burning in the region combined with forecasted conditions will cause air quality to reach unhealthy levels. Pollutants in smoke can cause burning eyes...runny nose...aggravate heart and lung diseases...and aggravate other serious health problems. Limit outdoor activities and keep children indoors if it is smoky. Please follow medical advice if you have a heart or lung condition. For additional information...please visit the Web site at http://www.oregon.gov/DEQ

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.

* IMPACTS...Given the recent prolonged stretch of very hot and very dry conditions, lightning efficiency will be high to very high for fire starts. Any fires that develop will likely spread rapidly. * AFFECTED AREA...The Siskiyou Mountains and areas south of Ashland and Cave Junction in fire weather zones 620 and 622. * THUNDERSTORMS...Thunderstorms are expected today. Lightning strikes outside of precipitation cores are possible and cause for concern. * OUTFLOW WINDS...Gusts up to 35 mph. These outflow winds can travel up to 50 miles away from the thunderstorm that caused it. * ADDITIONAL INFORMATION...Thunderstorms will be a mix of wet and dry storms. Isolated thunderstorms are possible late tonight into Monday morning and again Monday night into Tuesday. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* WHAT...High temperatures around 101 to 105 with low temperatures between 67 and 70 degrees. * WHERE...The valleys within Jackson and Josephine Counties. * WHEN...Until 8 PM PDT Tuesday. * IMPACTS...Hot temperatures and warm overnight lows may affect anyone without adequate hydration or access to cooling facilities.

* WHAT...High concentration of smoke particulates from wildfires burning in Oregon and northern California * WHERE...Harney and Malheur Counties. * WHEN....AIR QUALITY ALERT IN EFFECT UNTIL NOON PDT MONDAY. * 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.

* IMPACTS...Given the recent prolonged stretch of very hot and very dry conditions, lightning efficiency will be high to very high for fire starts. Any fires that develop will likely spread rapidly. * AFFECTED AREA...Portions of Fire Weather Zones 620 and622 south of a line roughly from Merlin to Butte Falls. This includes the Rogue, Illinois and Applegate Valleys. * THUNDERSTORMS...Isolated to scattered thunderstorms are expected Monday. Lightning strikes outside of precipitation cores are possible and cause for concern. * OUTFLOW WINDS...Gusts up to 35 mph. These outflow winds can travel up to 50 miles away from the thunderstorm that caused it. * ADDITIONAL INFORMATION...Thunderstorms will be a mix of wet and dry storms. Isolated thunderstorms are possible late tonight into Monday morning and again Monday night into Tuesday. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* IMPACTS...Given the recent prolonged stretch of very hot and very dry conditions, lightning efficiency will be high to very high for fire starts. Any fires that develop will likely spread rapidly. * AFFECTED AREA...Much of Fire Weather Zone 280 east of Happy Camp through late this evening. For the next Red Flag Warning, all of Fire Weather Zone 280. Both warnings include the Shelly Fire. * THUNDERSTORMS...Scattered thunderstorms are expected today and again Monday. Lightning strikes outside of precipitation cores are possible and cause for concern. * OUTFLOW WINDS...Gusts up to 35 mph. These outflow winds can travel up to 50 miles away from the thunderstorm that caused it. * ADDITIONAL INFORMATION...Thunderstorms will trend wetter today,but remain a mix of wet and dry storms. Isolated thunderstorms are possible late tonight into Monday morning. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

At 446 PM PDT, Doppler radar was tracking a strong thunderstorm 7 miles southwest of Buck Springs, or 38 miles west of Burns, moving east at 30 mph. HAZARD...Wind gusts of 50 to 55 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. This strong thunderstorm will be near... Emigrant Butte around 510 PM PDT.

...HOT, DRY, AND UNSTABLE WITH A SLIGHT CHANCE OF THUNDERSTORMS OVER SOUTHEAST OREGON... ...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS VALLEY TODAY... Hot, dry, and unstable conditions continue with a slight chance of thunderstorms this afternoon and evening primarily in the area around the Strawberry Mountains. Meanwhile, breezy winds and low RHs are expected to continue to produce critical fire weather conditions for the Columbia Basin and Kittitas Valley this afternoon and evening. * AFFECTED AREA...Fire Weather Zones 641 Lower Columbia Basin of Oregon, 690 Kittitas Valley and 691 Lower Columbia Basin. * WINDS...West 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...The combination of sustained wind and low relative humidity will result in conditions conducive to rapid fire spread and extreme fire behavior.

...HOT, DRY, AND UNSTABLE WITH A SLIGHT CHANCE OF THUNDERSTORMS OVER SOUTHEAST OREGON... ...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS VALLEY TODAY... Hot, dry, and unstable conditions continue with a slight chance of thunderstorms this afternoon and evening primarily in the area around the Strawberry Mountains. Meanwhile, breezy winds and low RHs are expected to continue to produce critical fire weather conditions for the Columbia Basin and Kittitas Valley this afternoon and evening. * AFFECTED AREA...Fire Weather Zone 642 Southern Blue and Strawberry Mountains. * WINDS...West-Southwest 10 to 15 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...As low as 12 percent. * TEMPERATURES...Up to 94. * IMPACTS...Any new and existing fires have a strong potential for extreme fire behavior. * HAINES...As high as 6.

...HOT, DRY, AND UNSTABLE WITH A SLIGHT CHANCE OF THUNDERSTORMS OVER SOUTHEAST OREGON... ...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS VALLEY TODAY... Hot, dry, and unstable conditions continue with a slight chance of thunderstorms this afternoon and evening primarily in the area around the Strawberry Mountains. Meanwhile, breezy winds and low RHs are expected to continue to produce critical fire weather conditions for the Columbia Basin and Kittitas Valley this afternoon and evening. * AFFECTED AREA...Fire Weather Zones 641 Lower Columbia Basin of Oregon, 690 Kittitas Valley and 691 Lower Columbia Basin. * WINDS...West 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...The combination of sustained wind and low relative humidity will result in conditions conducive to rapid fire spread and extreme fire behavior.

* IMPACTS...Given the recent prolonged stretch of very hot and very dry conditions, lightning efficiency will be high to very high for fire starts. Any fires that develop will likely spread rapidly. * AFFECTED AREA...Portions of Fire Weather Zones 620 and 622 south of a line roughly from Merlin to Butte Falls. This includes the Rogue, Illinois and Applegate Valleys. * THUNDERSTORMS...Isolated to scattered thunderstorms are expected Monday. Lightning strikes outside of precipitation cores are possible and cause for concern. * OUTFLOW WINDS...Gusts up to 35 mph. These outflow winds can travel up to 50 miles away from the thunderstorm that caused it. * ADDITIONAL INFORMATION...Thunderstorms will be a mix of wet and dry storms. Isolated thunderstorms are possible late tonight into Monday morning and again Monday night into Tuesday. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 9 PM PDT MONDAY FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 621... * IMPACTS...Given the recent prolonged stretch of very hot and very dry conditions, lightning efficiency will be high to very high for fire starts. Any fires that develop will likely spread rapidly. * AFFECTED AREA...For today, the eastern portions of Fire Weather Zone 621, east of the Jackson/Josephine county border. For the Red Flag Warning on Monday, all of Fire Weather Zone 621. * THUNDERSTORMS...Scattered thunderstorms are expected today and again Monday. Lightning strikes outside of precipitation cores are possible and cause for concern. * OUTFLOW WINDS...Gusts up to 35 mph. These outflow winds can travel up to 50 miles away from the thunderstorm that caused it. * ADDITIONAL INFORMATION...Thunderstorms will trend wetter today, but remain a mix of wet and dry storms. Isolated thunderstorms are possible late tonight into Monday morning and again Monday night into Tuesday. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 9 PM PDT MONDAY FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 621... * IMPACTS...Given the recent prolonged stretch of very hot and very dry conditions, lightning efficiency will be high to very high for fire starts. Any fires that develop will likely spread rapidly. * AFFECTED AREA...For today, the eastern portions of Fire Weather Zone 621, east of the Jackson/Josephine county border. For the Red Flag Warning on Monday, all of Fire Weather Zone 621. * THUNDERSTORMS...Scattered thunderstorms are expected today and again Monday. Lightning strikes outside of precipitation cores are possible and cause for concern. * OUTFLOW WINDS...Gusts up to 35 mph. These outflow winds can travel up to 50 miles away from the thunderstorm that caused it. * ADDITIONAL INFORMATION...Thunderstorms will trend wetter today, but remain a mix of wet and dry storms. Isolated thunderstorms are possible late tonight into Monday morning and again Monday night into Tuesday. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* IMPACTS...Given the recent prolonged stretch of very hot and very dry conditions, lightning efficiency will be high to very high for fire starts. Any fires that develop will likely spread rapidly. * AFFECTED AREA...For the Red Flag Warning, all areas. * THUNDERSTORMS...Scattered thunderstorms are expected today. Lightning strikes outside of precipitation cores are possible and cause for concern. * OUTFLOW WINDS...Gusts up to 35 mph. These outflow winds can travel up to 50 miles away from the thunderstorm that caused it. * ADDITIONAL INFORMATION...Thunderstorms will trend wetter today, but remain a mix of wet and dry storms. Isolated thunderstorms are possible late tonight into Monday morning. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

...Abundant lightning expected this afternoon and evening... * Thunderstorms...Isolated to scattered thunderstorms with abundant lightning and outflow winds but little or no rain. * Outflow Winds...Up to 60 mph. * Timing...Until midnight MDT /11 PM PDT/ tonight. * Thunderstorms...15 to 30 percent expected coverage. Greatest coverage will be in southern portions of the fire zones.

* WHAT...Dangerously hot conditions. * WHERE...In Idaho, Lower Treasure Valley ID. In Oregon, Oregon Lower Treasure Valley. * WHEN...Until midnight MDT tonight. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

* WHAT...Hot conditions continuing. * WHERE...In Idaho, Upper Weiser River. In Oregon, Malheur County. * WHEN...Until midnight MDT /11 PM PDT/ tonight. * IMPACTS...Hot temperatures may cause heat illnesses to occur.

* WHAT...Hot conditions with temperatures of 95 to 105 degrees. This will pose a moderate risk of heat-related illness. * WHERE...Portions of central, north central, and northeast Oregon and central, south central, and southeast Washington. * WHEN...Until 10 PM PDT this evening. * 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.