Aggregator

* WHAT...Hot conditions with high temperatures in the mid to upper 90s and low temperatures in the lower to mid 60s. This will pose a moderate to major risk of heat-related illness. * WHERE...Hood Canal Area, Bellevue and Vicinity, Bremerton and Vicinity, East Puget Sound Lowlands, Everett and Vicinity, Seattle and Vicinity, Tacoma Area, West Slopes North Cascades and Passes, West Slopes North Central Cascades and Passes, and West Slopes South Central Cascades and Passes. * WHEN...Until 5 PM PDT Wednesday. * IMPACTS...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...The warmest locations will remain in the urban centers, as well as the foothills and valleys of the Cascades where the cooling marine influence will be the last to arrive.

* WHAT...Hot conditions with high temperatures mostly in the 90s and low temperatures in the 60s. This will pose a moderate to major risk of heat-related illness. * WHERE...Admiralty Inlet Area, Eastern Strait of Juan de Fuca, Olympics, San Juan County, Western Skagit County, Western Whatcom County, Lower Chehalis Valley Area, and Southwest Interior. * WHEN...Until 10 PM PDT Tuesday. * IMPACTS...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 gradually cool during the middle and late portions of the week, but will remain well above normal in the 80s for much of the lowlands.

* WHAT...Hot conditions with high temperatures away from the immediate coastline in the 80s. This will pose a moderate risk of heat-related illness. * WHERE...Central Coast, North Coast, and Western Strait of Juan De Fuca. * WHEN...Until 11 AM PDT Tuesday. * 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...Temperatures along the immediate coast will be cooler, but this will not extend very far inland during the daytime hours through Monday. Some relief is possible during the overnight hours, but will be gradual and somewhat brief. Stronger onshore flow will bring a return to closer to normal temperatures for the coastal areas by midweek.

* WHAT...Dangerously hot conditions with temperatures between 100 and 105 degrees expected. Overnight temperatures will be slow to cool off each evening, only falling below 70 degrees for a short period each night, if at all depending on your location. The warm nighttime temperatures will limit chances to recover from the heat, exacerbating the risk of heat-related illness during this prolonged heat wave. * WHERE...Portions of northwest and west central Oregon and southwest Washington. * WHEN...Until 10 PM PDT Tuesday. * 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 degrees, mainly the 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 10 PM PDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses.

* WHAT...Dangerously hot conditions with temperatures between 100 and 105 degrees expected. Overnight temperatures will be slow to cool off each evening, only falling below 70 degrees for a short period each night, if at all depending on your location. The warm nighttime temperatures will limit chances to recover from the heat, exacerbating the risk of heat-related illness during this prolonged heat wave. * WHERE...Portions of northwest and west central Oregon and southwest Washington. * WHEN...Until 10 PM PDT Tuesday. * 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 degrees, mainly the 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 10 PM PDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses.

...HOT, DRY, UNSTABLE CONDITIONS ALONG THE EAST SLOPES OF THE CASCADES MONDAY AND TUESDAY... ...FIRE WEATHER WATCH FOR WIND AND LOW HUMIDITY WEDNESDAY AFTERNOON AND EVENING IN CENTRAL WASHINGTON... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE EAST SLOPES OF THE CENTRAL AND NORTHERN CASCADES (FIRE WEATHER ZONES 696, 697)... The National Weather Service in Spokane has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Wednesday afternoon through Wednesday evening. * Affected Area: Fire Weather Zone 696 East Washington Central Cascades (Zone 696) and Fire Weather Zone 697 East Portion of North Cascades National Park/Lake Chelan National Recreation Area (Zone 697). * Winds: Through Tuesday: 4-10 mph. A weak push of northwest winds Tuesday evening 10-15 mph. On Wednesday: west to northwest 10 to 20 mph with gusts up to 30 mph. * Relative Humidities: Through Tuesday: 8 to 14 percent in the valleys and 14 to 23 percent over the higher terrain. Wednesday: 10 to 15 percent in the valleys and 15 to 25 percent in the higher terrain. Poor overnight humidity recovery. * Temperatures: High temperatures 100 to 108 in the valleys, 80s and 90s in the mountains. * Impacts: hot, dry, and unstable conditions through Tuesday then wind on Wednesday will lead to the potential for rapid fire growth on any new or existing fires.

...HOT, DRY, UNSTABLE CONDITIONS ALONG THE EAST SLOPES OF THE CASCADES MONDAY AND TUESDAY... ...FIRE WEATHER WATCH FOR WIND AND LOW HUMIDITY WEDNESDAY AFTERNOON AND EVENING IN CENTRAL WASHINGTON... The National Weather Service in Spokane has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Wednesday afternoon through Wednesday evening. * Affected Area: Fire Weather Zone 703 Okanogan Valley (Zone 703), Fire Weather Zone 704 Methow Valley (Zone 704), Fire Weather Zone 705 Foothills of Central Washington Cascades (Zone 705), Fire Weather Zone 706 Waterville Plateau (Zone 706) and Fire Weather Zone 707 Western Columbia Basin (Zone 707). * Winds: West 13 to 20 mph with gusts up to 35 mph. In the Okanogan Valley, winds starting off south 10 to 18 mph and shifting to west 10 to 20 mph. * Relative Humidities: 8 to 15 percent. * Impacts: Any new or existing fires will have the potential to spread rapidly.

...HOT, DRY, UNSTABLE CONDITIONS ALONG THE EAST SLOPES OF THE CASCADES MONDAY AND TUESDAY... ...FIRE WEATHER WATCH FOR WIND AND LOW HUMIDITY WEDNESDAY AFTERNOON AND EVENING IN CENTRAL WASHINGTON... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE EAST SLOPES OF THE CENTRAL AND NORTHERN CASCADES (FIRE WEATHER ZONES 696, 697)... The National Weather Service in Spokane has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Wednesday afternoon through Wednesday evening. * Affected Area: Fire Weather Zone 696 East Washington Central Cascades (Zone 696) and Fire Weather Zone 697 East Portion of North Cascades National Park/Lake Chelan National Recreation Area (Zone 697). * Winds: Through Tuesday: 4-10 mph. A weak push of northwest winds Tuesday evening 10-15 mph. On Wednesday: west to northwest 10 to 20 mph with gusts up to 30 mph. * Relative Humidities: Through Tuesday: 8 to 14 percent in the valleys and 14 to 23 percent over the higher terrain. Wednesday: 10 to 15 percent in the valleys and 15 to 25 percent in the higher terrain. Poor overnight humidity recovery. * Temperatures: High temperatures 100 to 108 in the valleys, 80s and 90s in the mountains. * Impacts: hot, dry, and unstable conditions through Tuesday then wind on Wednesday will lead to the potential for rapid fire growth on any new or existing fires.

...HOT, DRY, UNSTABLE CONDITIONS ALONG THE EAST SLOPES OF THE CASCADES MONDAY AND TUESDAY... ...FIRE WEATHER WATCH FOR WIND AND LOW HUMIDITY WEDNESDAY AFTERNOON AND EVENING IN CENTRAL WASHINGTON... * Affected Area: Fire Weather Zone 698 East Washington North Cascades (Zone 698). * Relative Humidities: Minimum values 10 to 16 percent in the valleys and 14 to 23 percent over the higher terrain. Poor overnight humidity recovery. * Temperatures: High temperatures 97 to 104 in the valleys, 80s and 90s in the mountains. * Impacts: Hot, dry, and unstable conditions will lead to the potential for rapid fire growth on any new or existing fires.

Oregon Department of Environmental Quality has issued an Air Quality Advisory...IN EFFECT UNTIL 9 PM PDT TUESDAY. An Air Quality Advisory for Ozone has been issued. High levels of ozone in the lower atmosphere in the region combined with forecasted conditions will cause air quality to reach unhealthy levels at times through Tuesday evening. For additional information...please visit the Web site at http://www.oregon.gov/DEQ

* WHAT...Dangerously hot conditions with high temperatures 105 to 115, and low temperatures in the mid 60s to lower 70s through Tuesday, then continuing hot with high temperatures 100 to 110 on Wednesday. * WHERE...In California, western and central Siskiyou County. This includes the cities of Yreka, Weed, Etna, 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 Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Area rivers will be cold and can cause shock to swimmers.

* WHAT...High temperatures of 95 to 102 degrees with lows in the mid to upper 50s expected. * 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 Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses. Area rivers will be cold and can cause shock to swimmers.

* WHAT...High temperatures of 100 to 108 with low temperatures in the mid to upper 60s expected. * WHERE...Central Douglas County and Eastern Douglas County Foothills. This includes the cities of Roseburg, Toketee Falls, and Sutherlin. * WHEN...Until 9 PM PDT Tuesday. * 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 long-duration heatwave with hot temperatures through Tuesday.

* WHAT...For the Excessive Heat Warning, dangerously hot conditions with temperatures 105 to 110 expected. For the Excessive Heat Watch, dangerously hot conditions with temperatures up to 106 possible. * WHERE...Oregon Lower Treasure Valley. * WHEN...For the Excessive Heat Warning, until midnight MDT Friday night. For the Excessive Heat Watch, from late Friday night through Sunday evening. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

* WHAT...For the first Excessive Heat Warning, dangerously hot conditions with temperatures 104 to 109, hottest in the lower elevations near the Snake River. For the Excessive Heat Watch, dangerously hot conditions with temperatures up to 101 possible. * WHERE...Baker County. * WHEN...For the first Excessive Heat Warning, from 10 AM Tuesday to 11 PM PDT Wednesday. For the second Excessive Heat Warning, from 11 AM to 11 PM PDT Friday. For the Excessive Heat Watch, from Friday evening through Sunday evening. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

* WHAT...For the Excessive Heat Warning, dangerously hot conditions with temperatures 105 to 110 expected. For the Excessive Heat Watch, dangerously hot conditions with temperatures up to 106 possible. * WHERE...Portions of southwest and west central Idaho and southeast Oregon. * WHEN...For the Excessive Heat Warning, from 11 AM MDT /10 AM PDT/ Tuesday to midnight MDT /11 PM PDT/ Friday night. For the Excessive Heat Watch, from late Friday night through Sunday evening. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

* WHAT...For the Heat Advisory, temperatures up to 103 expected. For the Excessive Heat Watch, dangerously hot conditions with temperatures up to 104 possible. * WHERE...Harney County. * WHEN...For the Heat Advisory, from 10 AM Tuesday to 11 PM PDT Friday. For the Excessive Heat Watch, from Friday evening through Sunday evening. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

* WHAT...For the Excessive Heat Warning, dangerously hot conditions with temperatures 105 to 110 expected. For the Excessive Heat Watch, dangerously hot conditions with temperatures up to 106 possible. * WHERE...Oregon Lower Treasure Valley. * WHEN...For the Excessive Heat Warning, until midnight MDT Friday night. For the Excessive Heat Watch, from late Friday night through Sunday evening. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.