The National Weather Service in Seattle has issued a Red Flag
Warning for dry thunderstorms and gusty outflow winds, which is
in effect from 5 AM to 6 PM PDT Sunday.
* AFFECTED AREA...Fire Weather Zone 652 West Portion of the
Olympic Mountains and Fire Weather Zone 661 East Portion of
the Olympic Mountains.
* THUNDERSTORMS....Scattered chance of thunderstorms over the
Olympic mountains with LAL 3 during the morning and afternoon
hours.
* OUTFLOW WINDS...Gusty and erratic winds are possible in the
vicinity of any thunderstorms that develop.
* IMPACTS...Scattered lightning in dry fuels can cause multiple
fire starts. Thunderstorms can also bring sudden sharp wind
shifts on existing fires, causing rapid changes in a fire's
rate of spread and direction of spread. Thunderstorm outflow
winds can be a threat for several hours following the start of
a new lightning-caused fire. If a fire were to begin, air
quality may diminish in the surrounding area.
* WHAT...Dangerously hot conditions with temperatures of 100 to 110
degrees expected. This will pose a Major 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 Monday.
* IMPACTS...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.
* WHAT...Hot conditions with temperatures of 95 to 105 degrees
expected. This will pose a Moderate to Major risk of heat-related
illness.
* WHERE...In Oregon, Central Oregon, Ochoco-John Day Highlands, and
North Central Oregon. In Washington, Lower Slopes of the Eastern
Washington Cascades Crest.
* WHEN...Until 8 PM PDT Monday.
* 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.
The National Weather Service in Portland has issued a Red Flag
Warning for thunderstorms, which is in effect from 5 AM to 8 PM
PDT Sunday. The Fire Weather Watch is no longer in effect.
* AFFECTED AREA...In Washington, Fire Weather Zone 634 Southern
Gifford Pinchot National Forest, Fire Weather Zone 635 Mt.
Adams Ranger District of the Gifford-Pinchot National Forest
and Fire Weather Zone 636 Western Columbia River Gorge in
Oregon and Washington.
* THUNDERSTORMS...Isolated to scattered thunderstorms.
* IMPACTS...Frequent lightning and critically dry fuels may
result in numerous fire starts. Thunderstorm outflow winds may
result in erratic fire spread.
* OUTFLOW WINDS...Gusts up to 40 mph possible.
* WHAT...High temperatures 100 to 110 through Monday. Lows in the
mid 60s to mid 70s.
* WHERE...Portions of North and North Central Idaho and Central,
East Central, North Central, Northeast, and Southeast Washington.
* WHEN...Until 8 PM PDT Monday.
* IMPACTS...Heat will increase the risk of heat-related illnesses,
especially those without effective cooling or adequate hydration.
* WHAT...Hot temperatures. Valley high temperatures 98 to 105. Highs
in the mountains in the 80s and 90s.
* WHERE...Stevens Pass, Holden Village, and Stehekin.
* WHEN...Until 8 PM PDT Monday.
* IMPACTS...Heat will increase the risk of heat-related illnesses,
especially those without effective cooling or adequate hydration.
...HOT DRY AND UNSTABLE CONDITIONS SUNDAY ACROSS THE CASCADES...
The National Weather Service in Spokane has issued a Red Flag
Warning for hot, dry, and unstable conditions, which is in effect
from 12 PM to 10 PM PDT Sunday. The Fire Weather Watch is no
longer in effect.
* Affected Area: Fire Weather Zone 696 East Washington Central
Cascades (Zone 696), Fire Weather Zone 697 East Portion of
North Cascades National Park/Lake Chelan National Recreation
Area (Zone 697), Fire Weather Zone 698 East Washington North
Cascades (Zone 698), Fire Weather Zone 704 Methow Valley (Zone
704) and Fire Weather Zone 705 Foothills of Central Washington
Cascades (Zone 705).
* Winds: Southeast 6 to 11 mph shifting to the northwest 8 to 14
mph in the early evening.
* Timing: 12 PM to 10 PM
* Relative Humidities: 7 to 16 percent in the valleys and 16 to
24 percent over the higher terrain.
* Thunderstorms: There is 10 to 15% chance for isolated
thunderstorms Sunday evening and night. Gusty and erratic winds
are possible with any thunderstorms that develop.
* Temperatures: Up to 108.
* Impacts: Unstable conditions could lead to plume dominated
fires. Rapid fire spread with any new or existing fires. These
conditions may overwhelm initial attack capabilities.
* WHAT...Dangerously hot conditions with temperatures of 100 to 110
degrees expected. This will pose a Major risk of heat-related
illness.
* WHERE...Portions of central, north central, and northeast Oregon
and central, south central, and southeast Washington.
* WHEN...From 11 AM this morning to 10 PM PDT Monday.
* IMPACTS...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.
* WHAT...Hot conditions with temperatures of 95 to 105 degrees
expected. This will pose a Moderate to Major risk of heat-related
illness.
* WHERE...In Oregon, Central Oregon, Ochoco-John Day Highlands, and
North Central Oregon. In Washington, Lower Slopes of the Eastern
Washington Cascades Crest.
* WHEN...From 11 AM this morning to 8 PM PDT Monday.
* 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...Afternoon high temperatures in the middle to upper 90s.
* WHERE...Clark County, Columbia River Gorge, Upper Hood River
Valley, and the Willamette Valley.
* WHEN...From 11 AM to 11 PM PDT today.
* IMPACTS...Hot temperatures may cause heat illnesses.
The National Weather Service in Portland has issued a Fire
Weather Watch for thunderstorms, which is in effect from late
Saturday night through Sunday evening.
* AFFECTED AREA...In Washington, Fire Weather Zone 634 Southern
Gifford Pinchot National Forest, Fire Weather Zone 635 Mt.
Adams Ranger District of the Gifford-Pinchot National Forest
and Fire Weather Zone 636 Western Columbia River Gorge in
Oregon and Washington.
* THUNDERSTORMS...Isolated to scattered thunderstorms.
* IMPACTS...Frequent lightning and critically dry fuels may
result in numerous fire starts. Thunderstorm outflow winds may
result in erratic fire spread.
The National Weather Service in Portland has issued a Fire
Weather Watch for thunderstorms, which is in effect from late
Saturday night through early Sunday evening.
* AFFECTED AREA...In Oregon, Fire Weather Zone 684 Northern and
Central Willamette Valley. In Washington, Fire Weather Zone
633 Clark County Lowlands and Swift Reservoir Region.
* THUNDERSTORMS...Isolated to scattered thunderstorms.
* IMPACTS...Frequent lightning and critically dry fuels may
result in numerous fire starts. Thunderstorm outflow winds may
result in erratic fire spread.
...HOT DRY AND UNSTABLE CONDITIONS SUNDAY ACROSS THE CASCADES...
* Affected Area: Fire Weather Zone 696 East Washington Central
Cascades, Fire Weather Zone 697 East Portion of North Cascades
National Park/Lake Chelan National Recreation Area, Fire Weather
Zone 698 East Washington North Cascades, Fire Weather Zone 704
Methow Valley and Fire Weather Zone 705 Foothills of Central
Washington Cascades.
* Winds: Southeast 5 to 10 mph becoming northwest 5 to 10 mph
towards sunset.
* Timing: 3 PM to 10 PM
* Relative Humidities: 7 to 16 percent in the valleys and 16 to
24 percent over the higher terrain.
* Temperatures: Up to 108.
* Impacts: Unstable conditions could lead to plume dominated
fires. Rapid fire spread with any new or existing fires. These
conditions may overwhelm initial attack capabilities.
The National Weather Service in Portland has issued a Fire
Weather Watch for thunderstorms, which is in effect from late
Saturday night through late Sunday night.
* AFFECTED AREA...In Washington, Fire Weather Zone 634 Southern
Gifford Pinchot National Forest, Fire Weather Zone 635 Mt.
Adams Ranger District of the Gifford-Pinchot National Forest
and Fire Weather Zone 636 Western Columbia River Gorge in
Oregon and Washington.
* THUNDERSTORMS...Isolated to scattered thunderstorms.
* IMPACTS...Frequent lightning and critically dry fuels may
result in numerous fire starts. Thunderstorm outflow winds may
result in erratic fire spread.
The National Weather Service in Portland has issued a Fire
Weather Watch for thunderstorms, which is in effect from late
Saturday night through Sunday evening.
* AFFECTED AREA...In Oregon, Fire Weather Zone 684 Northern and
Central Willamette Valley. In Washington, Fire Weather Zone
633 Clark County Lowlands and Swift Reservoir Region.
* THUNDERSTORMS...Isolated to scattered thunderstorms.
* IMPACTS...Frequent lightning and critically dry fuels may
result in numerous fire starts. Thunderstorm outflow winds may
result in erratic fire spread.
* WHAT...Dangerously hot conditions with afternoon temperatures of
100-110 degrees expected over the weekend. This will pose a Major
risk of heat-related illness.
* WHERE...Portions of central, north central, and northeast Oregon
and central, south central, and southeast Washington.
* WHEN...From 11 AM Saturday to 10 PM PDT Monday.
* IMPACTS...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.
* WHAT...Hot conditions with afternoon temperatures of 95-105
degrees expected over the weekend. This will pose a Moderate to
Major risk of heat-related illness.
* WHERE...In Oregon, Central Oregon, Ochoco-John Day Highlands, and
North Central Oregon. In Washington, Lower Slopes of the Eastern
Washington Cascades Crest.
* WHEN...From 11 AM Saturday to 8 PM PDT Monday.
* 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 temperatures. Highs Friday 94 to 99, 98 to 107 Saturday
through Monday. Overnight lows mainly in the upper 50s and 60s.
* WHERE...Metaline Falls, Boulder Creek Road, Springdale-Hunters
Road, Chewelah, Orin-Rice Road, Tiger, Chesaw Road, Republic,
Highway 20 Wauconda Summit, Fruitland, Colville, Deer Park, Kettle
Falls, Wauconda, Ione, Northport, Sherman Pass, Flowery Trail
Road, Metaline, Inchelium, and Newport.
* WHEN...For the Heat Advisory, until 11 AM PDT Saturday. For the
Excessive Heat Warning, from 11 AM Saturday to 8 PM PDT Monday.
* IMPACTS...Heat will increase the risk of heat-related illnesses,
especially those without effective cooling or adequate hydration.
* WHAT...Very hot temperatures. High temperatures in the valleys 95
to 103 Friday, 97 to 107 Saturday, near 100 to 110 Sunday and
Monday. Lows in the mid 60s to mid 70s.
* WHERE...Portions of North and North Central Idaho and Central,
East Central, North Central, Northeast, and Southeast Washington.
* WHEN...For the Heat Advisory, until 11 AM PDT Saturday. For the
Excessive Heat Warning, from 11 AM Saturday to 8 PM PDT Monday.
* IMPACTS...Heat will increase the risk of heat-related illnesses,
especially those without effective cooling or adequate hydration.
* WHAT...Hot conditions during the day for the valleys. Highs mid
90s to 105. Overnight lows mainly in the upper 50s and 60s
* WHERE...Anatone, Craigmont, Kamiah, Mountain Road, Winchester,
Nezperce, Cloverland Road, Soldiers Meadow Road, and Peola.
* WHEN...For the Heat Advisory, until 11 AM PDT Saturday. For the
Excessive Heat Warning, from 11 AM Saturday to 8 PM PDT Monday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
