* WHAT...Hot conditions with high temperatures in the mid to upper
80s and low temperatures in the 60s to 70s. This will pose a
moderate risk of heat-related illness.
* WHERE...Eastern Strait of Juan de Fuca and Western Strait of Juan
de Fuca.
* WHEN...Until 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 low 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...Until 5 AM PDT Wednesday.
* 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 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 20 to 30 percent.
* TEMPERATURES...85 to near 95.
* 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.
...HOT, DRY, AND UNSTABLE CONDITIONS FOR MONDAY AND TUESDAY ALONG
WITH THE POTENTIAL FOR ISOLATED THUNDERSTORMS WITH GUSTY OUTFLOW
WINDS...
.Hot, dry, and unstable conditions are forecast along the East
Slopes of the Central and Northern Cascades as well as the Methow
Valley Monday and Tuesday. In addition, we are monitoring the
potential for isolated thunderstorms on Monday and Tuesday
afternoons that could result in new fire starts along with gusty
outflow winds.
* Affected Area: East Washington Central Cascades (Zone 696),
East Portion of North Cascades National Park/Lake Chelan
National Recreation Area (Zone 697), East Washington North
Cascades (Zone 698) and Methow Valley (Zone 704).
* Winds: Southeast around 5 mph in the afternoon shifting to
northwest in the evening, except gusty outflow winds near
thunderstorms.
* Timing: Afternoon and evening for both Monday and Tuesday.
* Relative Humidities: Below 4000 feet: 13 to 20 percent. Above
4000 feet: 20 to 30 percent.
* Temperatures: Below 4000 feet: 90 to 102 degrees. Above 4000
feet: 75 to 90 degrees.
* Lightning: A 5-10 percent chance of dry thunderstorms late
Monday afternoon into the evening. A 20-25 percent chance of
thunderstorms Tuesday afternoon and evening mainly over the
higher terrain.
* Impacts: Hot, dry, unstable conditions may lead to rapid fire
growth on any new or existing fires. Isolated thunderstorms will
bring the potential for new fire starts, as well as gusty
outflow winds.
* WHAT...Dangerously hot conditions with high temperatures of 90-98F
and overnight low temperatures of 60-70F expected.
* 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, Lower Columbia River and Cowlitz
River Valleys, and South Washington Cascade Foothills.
* WHEN...Until 11 PM 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...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 up to 93F and
overnight low temperatures of 60-67F 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...Until 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.
* WHAT...Hot conditions with high temperatures ranging from the 80s
to near 90 degrees expected and low temperatures in the 60s. This
will pose a moderate risk of heat-related illness.
* WHERE...Lake Crescent Area Including US 101.
* WHEN...Until 5 AM PDT Wednesday.
* 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 low 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...Until 5 AM PDT Wednesday.
* 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...Until 5 AM PDT Wednesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* WHAT...Hot conditions with high temperatures in the mid to upper
80s and low temperatures in the 60s to 70s. This will pose a
moderate risk of heat-related illness.
* WHERE...Eastern Strait of Juan de Fuca and Western Strait of Juan
de Fuca.
* WHEN...Until 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 low 90s and low temperatures in the mid 60s. This
will pose a major risk of heat-related illness.
* WHERE...City of Seattle, Eastside, and Lowlands of Pierce and
Southern King Counties.
* WHEN...Until 5 AM PDT Wednesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* 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 20 to 30 percent.
* TEMPERATURES...Up to 90 to near 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.
* WHAT...Dangerously hot conditions with temperatures up to 98 to
104 degrees expected. This will pose a major to locally extreme
risk of heat-related illness.
* WHERE...Portions of north central and northeast Oregon and
central, south central, and southeast Washington.
* WHEN...Until 9 PM PDT Wednesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Lingering cloud cover from thunderstorms in
southern Oregon may result in lower than forecast afternoon
temperatures or higher than forecast overnight low temperatures.
* WHAT...Hot conditions with temperatures 95 to 100 degrees
expected. This will pose a moderate to locally major risk of
heat-related illness.
* WHERE...In Oregon, Central Oregon, John Day Basin, and Grande
Ronde Valley. In Washington, Northwest Blue Mountains.
* WHEN...Until 9 PM PDT Wednesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Lingering cloud cover from thunderstorms in
southern Oregon may result in lower than forecast afternoon
temperatures or higher than forecast overnight low temperatures.
...HOT, DRY, AND UNSTABLE CONDITIONS FOR MONDAY AND TUESDAY ALONG
WITH THE POTENTIAL FOR ISOLATED THUNDERSTORMS WITH GUSTY OUTFLOW
WINDS...
.Hot, dry, and unstable conditions are forecast along the East
Slopes of the Central and Northern Cascades as well as the Methow
Valley Monday and Tuesday. In addition, we are monitoring the
potential for isolated thunderstorms on Monday and Tuesday
afternoons that could result in new fire starts along with gusty
outflow winds.
The National Weather Service in Spokane has issued a Red Flag
Warning for hot, dry, and unstable conditions, which is in effect
from noon Monday to 9 PM PDT Tuesday. The Fire Weather Watch is
no longer in effect.
* Affected Area: East Washington Central Cascades (Zone 696),
East Portion of North Cascades National Park/Lake Chelan
National Recreation Area (Zone 697), East Washington North
Cascades (Zone 698) and Methow Valley (Zone 704).
* Winds: Southeast around 5 mph in the afternoon shifting to
northwest in the evening, except gusty outflow winds near
thunderstorms.
* Timing: Afternoon and evening for both Monday and Tuesday.
* Thunderstorms: A 5-10 percent chance of dry thunderstorms late
Monday afternoon into the evening. A 20-25 percent chance of
thunderstorms Tuesday afternoon and evening mainly over the
higher terrain.
* Relative Humidities: Below 4000 feet: 13 to 20 percent. Above
4000 feet: 20 to 30 percent.
* Temperatures: Below 4000 feet: 90 to 102 degrees. Above 4000
feet: 75 to 90 degrees.
* Impacts: Hot, dry, unstable conditions may lead to rapid fire
growth on any new or existing fires. Isolated thunderstorms will
bring the potential for new fire starts, as well as gusty
outflow winds.
The National Weather Service in Seattle has cancelled the Fire
Weather Watch.
* 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 20 to 30 percent.
* TEMPERATURES...Up to 90 to near 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.
* AFFECTED AREA...Fire Weather Zone 661 East Portion of the
Olympic Mountains.
* RELATIVE HUMIDITY...As low as 20 to 25 percent.
* TEMPERATURES...Up to 90 o 05.
* 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.
* WHAT...Hot conditions with high temperatures ranging from the
upper 80s to low 90s and low temperatures in the mid 60s. This
will pose a major risk of heat-related illness.
* WHERE...City of Seattle, Eastside, and Lowlands of Pierce and
Southern King Counties.
* WHEN...Until 5 AM PDT Wednesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* WHAT...Hot conditions with high temperatures ranging from the mid
80s to low 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...Until 5 AM PDT Wednesday.
* 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...Until 5 AM PDT Wednesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
