* WHAT...Hot conditions with high temperatures ranging from the mid
80s to 90s expected and low temperatures mostly in the 60s. This
will pose a moderate risk of heat-related illness.
* WHERE...Lake Crescent Area Including US 101.
* WHEN...From 11 AM this morning to 5 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.
* AFFECTED AREA...Fire Weather Zone 661 East Portion of the
Olympic Mountains.
* RELATIVE HUMIDITY...As low as 20-25 percent.
* TEMPERATURES...Up to 90.
* STABILITY...Unstable conditions can be expected
* IMPACTS...A dry and unstable air mass with warm temperatures
can contribute to active fire behavior. In western Washington,
significant growth on existing fires takes place under such
conditions. If a fire were to begin, air quality may diminish
in the surrounding area.
* AFFECTED AREA...Fire Weather Zone 658 West Slopes of the North
Cascades Generally above 1500 Feet and Fire Weather Zone 659
West Slopes of the Central Cascades Generally above 1500 Feet.
* RELATIVE HUMIDITY...As low as 15 percent.
* TEMPERATURES...Up to 90 to 100.
* STABILITY...Unstable conditions can be expected
* IMPACTS...A dry and unstable air mass with warm temperatures
can contribute to active fire behavior. In western Washington,
significant growth on existing fires takes place under such
conditions. If a fire were to begin, air quality may diminish
in the surrounding area.
Breezy easterly winds are expected through Friday night for the
Columbia River Gorge and adjacent Cascade ridgetops and late
Friday morning through Friday evening for the eastern
Portland/Vancouver metro. Winds will be strongest on exposed
ridgetops where wind gusts will most likely peak between 25-35
mph. Elsewhere, expect wind gusts between 15-20 mph, except up to
30 mph in the western Columbia River Gorge. The breezy east winds
will occur simultaneously with low relative humidity values of
20-30% or less, resulting in near critical fire weather
conditions. Due to recent rains in the area, larger fuels (such as
trees and shrubs) are not dry enough to cause rapid fire spread,
but the hot weather will allow fine fuels (such as grasses) to
dry out quickly, allowing for potential rapid spread. Use extra
caution with potential ignition sources, especially in grassy
areas. Outdoor burning is not recommended.
* WHAT...Dangerously hot conditions with high temperatures up to
93-98F and overnight low temperatures of 60-68F possible.
* WHERE...South Washington Cascades and the Northern and Central
Cascades of Oregon, North and Central Coast Range Valleys of
Oregon, and Willapa and Wahkiakum Lowlands.
* WHEN...From 11 AM this morning to 5 AM PDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events, especially for those spending time outdoors
or without access to adequate cooling.
* ADDITIONAL DETAILS...Friday and Saturday will be the hottest days.
Overnight lows as warm as the lower 70s are possible on the mid
slopes of the Cascades.
* WHAT...Dangerously hot conditions with high temperatures of
93-100F and overnight low temperatures of 60-68F expected.
* WHERE...South Washington Cascade Foothills.
* WHEN...From 11 AM this morning to 5 AM PDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events, especially for those spending time outdoors
or without access to adequate cooling.
* ADDITIONAL DETAILS...Friday and Saturday will be the hottest days.
* WHAT...Dangerously hot conditions with high temperatures of
96-103F and overnight low temperatures of 60-70F expected, except
low to mid 70s in the Columbia River Gorge.
* WHERE...Greater Portland/Vancouver Metro, Western and Central
Columbia River Gorge, the Corbett area and the Hood River Valley,
Central and Southern Willamette Valley, Foothills of the Northern
and Central Oregon Cascades, and Lower Columbia River and Cowlitz
River Valleys.
* WHEN...From 11 AM this morning to 5 AM PDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events, especially for those spending time outdoors
or without access to adequate cooling.
* ADDITIONAL DETAILS...Friday and Saturday will be the hottest days.
The warmest overnight lows are expected to occur in the Columbia
River Gorge and in urban areas from Salem northward.
* WHAT...Hot conditions with high temperatures ranging from the
upper 80s to upper 90s and low temperatures mostly in the 60s.
This will pose a major risk of heat-related illness.
* WHERE...Foothills and Valleys of the North Cascades, Foothills and
Valleys of Central King County, Foothills and Valleys of Pierce
and Southern King Counties, Foothills and Valleys of Snohomish and
Northern King Counties, and Foothills and Valleys of Thurston and
Lewis Counties.
* WHEN...From 11 AM Friday to 5 AM PDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* WHAT...Hot conditions with high temperatures ranging from the mid
80s to 90s expected and low temperatures mostly in the 60s. This
will pose a moderate risk of heat-related illness.
* WHERE...Portions of northwest and west central Washington.
* WHEN...From 11 AM Friday to 5 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.
* WHAT...Hot conditions with high temperatures ranging from the mid
80s to 90s expected and low temperatures mostly in the 60s. This
will pose a moderate risk of heat-related illness.
* WHERE...Lake Crescent Area Including US 101.
* WHEN...From 11 AM Friday to 5 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.
* WHAT...Dangerously hot conditions with high temperatures of 93-98F
and overnight low temperatures of 60-68F expected.
* WHERE...South Washington Cascades and the Northern and Central
Cascades of Oregon, North and Central Coast Range Valleys of
Oregon, Willapa and Wahkiakum Lowlands, and South Washington
Cascade Foothills.
* WHEN...From 11 AM Friday to 5 AM PDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events, especially for those spending time outdoors
or without access to adequate cooling.
* ADDITIONAL DETAILS...Friday and Saturday will be the hottest days.
Overnight lows as warm as the lower 70s are possible on the mid
slopes of the Cascades.
* WHAT...Dangerously hot conditions with high temperatures of
96-103F and overnight low temperatures of 60-70F expected, except
low to mid 70s in the Columbia River Gorge.
* WHERE...Greater Portland/Vancouver Metro, Western and Central
Columbia River Gorge, the Corbett area and the Hood River Valley,
Central and Southern Willamette Valley, Foothills of the Northern
and Central Oregon Cascades, and Lower Columbia River and Cowlitz
River Valleys.
* WHEN...From 11 AM Friday to 5 AM PDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events, especially for those spending time outdoors
or without access to adequate cooling.
* ADDITIONAL DETAILS...Friday and Saturday will be the hottest days.
The warmest overnight lows are expected to occur in the Columbia
River Gorge and in urban areas from Salem northward.
The National Weather Service in Seattle has issued a Fire Weather
Watch for hot, dry and unstable conditions, which is in effect
from Saturday morning through Sunday evening.
* AFFECTED AREA...Fire Weather Zone 658 West Slopes of the North
Cascades Generally above 1500 Feet and Fire Weather Zone 659
West Slopes of the Central Cascades Generally above 1500 Feet.
* RELATIVE HUMIDITY...As low as 13 percent.
* TEMPERATURES...Up to 99.
* STABILITY...Unstable conditions can be expected
* IMPACTS...A dry and unstable air mass with warm temperatures
can contribute to active fire behavior. In western Washington,
significant growth on existing fires takes place under such
conditions. If a fire were to begin, air quality may diminish
in the surrounding area.
The National Weather Service in Seattle has issued a Fire Weather
Watch for hot, dry and unstable conditions, which is in effect
from Saturday morning through Saturday evening.
* AFFECTED AREA...Fire Weather Zone 661 East Portion of the
Olympic Mountains.
* RELATIVE HUMIDITY...As low as 25 percent in isolated areas.
* TEMPERATURES...Up to 88.
* STABILITY...Unstable conditions can be expected
* IMPACTS...A dry and unstable air mass with warm temperatures
can contribute to active fire behavior. In western Washington,
significant growth on existing fires takes place under such
conditions. If a fire were to begin, air quality may diminish
in the surrounding area.
Breezy easterly winds will develop Friday morning and continue
through Friday evening for the eastern Portland/Vancouver metro,
and through Friday night for the Columbia River Gorge and adjacent
Cascade ridgetops. Winds will be strongest on exposed ridgetops
where wind gusts will most likely peak between 25-35 mph.
Elsewhere, expect wind gusts between 15-20 mph, except up to 30
mph in the western Columbia River Gorge. The breezy east winds
will occur simultaneously with low relative humidity values of
20-30% or less, resulting in near critical fire weather
conditions. Use extra caution with potential ignition sources,
especially in grassy areas. Outdoor burning is not recommended.
* WHAT...Hot temperatures. High temperatures 95 to 102 degrees.
Limited overnight relief with low temperatures 65 to 74.
* WHERE...Bridgeport, Badger Mountain Road, Culdesac, Number 2
Canyon, Othello, Brewster, Peck, Okanogan, Waterville, Lapwai,
Coulee City, Clarkston, Winthrop, Moses Lake, Leavenworth, Twisp,
Harrington, Number 1 Canyon, Creston, Quincy, Tonasket, Disautel
Pass, Lewiston, Nespelem, Plain, Lewiston Grade, Omak, Grand
Coulee, Mansfield, Wilbur, Ritzville, Gifford, Alpowa Summit,
Entiat, Oroville, Ephrata, Methow, Chelan, Odessa, Pangborn
Airport, Wenatchee, Conconully, Pomeroy, Loup Loup Pass, Mazama,
and Cashmere.
* WHEN...From Saturday afternoon through Wednesday evening.
* IMPACTS...Hot temperatures will increase the risk of heat-related
illnesses. Heat of this magnitude affects anyone without cooling
and hydration as well as health systems and industries.
* WHAT...Hot conditions with high temperatures ranging from the mid
80s to 90s expected and low temperatures mostly in the 60s. This
will pose a moderate risk of heat-related illness.
* WHERE...Portions of northwest and west central Washington.
* WHEN...From 11 AM Friday to 5 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.
* WHAT...Hot conditions with high temperatures ranging from the
upper 80s to upper 90s and low temperatures mostly in the 60s.
This will pose a major risk of heat-related illness.
* WHERE...Foothills and Valleys of the North Cascades, Foothills and
Valleys of Central King County, Foothills and Valleys of Pierce
and Southern King Counties, Foothills and Valleys of Snohomish and
Northern King Counties, and Foothills and Valleys of Thurston and
Lewis Counties.
* WHEN...From 11 AM Friday to 5 AM PDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* WHAT...Hot conditions with high temperatures ranging from the mid
80s to 90s expected and low temperatures mostly in the 60s. This
will pose a moderate risk of heat-related illness.
* WHERE...Lake Crescent Area Including US 101.
* WHEN...From 11 AM Friday to 5 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.
* WHAT...Dangerously hot conditions with high temperatures of 95 to
105 degrees possible. This will pose a major to extreme risk of
heat-related illness.
* WHERE...Portions of north central and northeast Oregon and
central, south central, and southeast Washington.
* WHEN...From Saturday afternoon through Wednesday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Extreme 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.
