* WHAT...Hot conditions with high temperatures of 95 to 100 degrees
expected. Overnight low temperatures of 50 to 65 degrees.
* WHERE...In Oregon, all areas from the Cascades and Siskiyou
Mountains eastward, including Union Creek, Lake of the Woods, Fish
Lake, Howard Prairie, Klamath Falls, Chiloquin, Crescent, Fort
Rock, Bly and Lakeview. In California, eastern Siskiyou County and
all of Modoc County, including Dorris, Macdoel, Tulelake, Adin,
Alturas and Likely.
* WHEN...From 1 PM this afternoon to 8 PM PDT Saturday.
* IMPACTS...Hot temperatures may cause heat related illnesses.
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 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...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...Very hot conditions with high temperatures of 100 to 107
degrees expected. Overnight low temperatures of 60 to 70 degrees.
* WHERE...The valleys of Josephine and Jackson Counties. This
includes Agness, Grants Pass, Cave Junction, Williams, Ruch, Rogue
River, Gold Hill, White City, Shady Cove, Medford, Jacksonville,
Talent and Ashland.
* WHEN...From 1 PM Friday to 8 PM PDT Monday.
* IMPACTS...Unusually hot temperatures will increase risk for heat
related illnesses. Warm overnight temperatures will provide little
relief from hot daytime temperatures.
* WHAT...Hot conditions with high temperatures of 95 to 104 degrees
expected. Overnight low temperatures of 55 to 65 degrees.
* WHERE...The valleys of central and eastern Douglas County. This
includes Camas Valley, Elkton, Drain, Sutherlin, Roseburg,
Glendale, Riddle, Canyonville, Tiller and Toketee Falls.
* WHEN...From 1 PM Friday to 8 PM PDT Sunday.
* IMPACTS...Hot temperatures may cause heat related illnesses.
* WHAT...Hot conditions with high temperatures of 95 to 100 degrees
expected. Overnight low temperatures of 50 to 65 degrees.
* WHERE...In Oregon, all areas from the Cascades and Siskiyou
Mountains eastward, including Union Creek, Lake of the Woods, Fish
Lake, Howard Prairie, Klamath Falls, Chiloquin, Crescent, Fort
Rock, Bly and Lakeview. In California, eastern Siskiyou County and
all of Modoc County, including Dorris, Macdoel, Tulelake, Adin,
Alturas and Likely.
* WHEN...From 1 PM Friday to 8 PM PDT Saturday.
* IMPACTS...Hot temperatures may cause heat related illnesses.
* WHAT...Very hot conditions with high temperatures of 100 to 107
degrees expected. Overnight low temperatures of 60 to 70 degrees.
* WHERE...The valleys of Josephine and Jackson Counties. This
includes Agness, Grants Pass, Cave Junction, Williams, Ruch, Rogue
River, Gold Hill, White City, Shady Cove, Medford, Jacksonville,
Talent and Ashland.
* WHEN...From 1 PM Friday to 8 PM PDT Monday.
* IMPACTS...Unusually hot temperatures will increase risk for heat
related illnesses. Warm overnight temperatures will provide little
relief from hot daytime temperatures.
* WHAT...Hot conditions with high temperatures of 95 to 104 degrees
expected. Overnight low temperatures of 55 to 65 degrees.
* WHERE...The valleys of central and eastern Douglas County. This
includes Camas Valley, Elkton, Drain, Sutherlin, Roseburg,
Glendale, Riddle, Canyonville, Tiller and Toketee Falls.
* WHEN...From 1 PM Friday to 8 PM PDT Sunday.
* IMPACTS...Hot temperatures may cause heat related illnesses.
* WHAT...Hot conditions with high temperatures of 95 to 100 degrees
expected. Overnight low temperatures of 50 to 65 degrees.
* WHERE...In California, North Central and Southeast Siskiyou
County, including Tennant. In Oregon, Siskiyou Mountains and
Southern Oregon Cascades, including Lake of the Woods, Fish Lake
and Howard Prairie..
* WHEN...From 1 PM Friday to 8 PM PDT Saturday.
* IMPACTS...Hot temperatures may cause heat related illnesses.
* WHAT...Hot conditions with high temperatures of 95 to 100 degrees.
Overnight low temperatures of 50 to 65 degrees.
* WHERE...All areas from the Cascades eastward in Oregon, including
Union Creek, Klamath Falls, Chiloquin, Crescent, Fort Rock, Bly
and Lakeview. Also all of eastern Siskiyou County and Modoc County
in Northeast California, including Dorris, Macdoel, Tulelake,
Adin, Alturas and Likely.
* WHEN...From 1 PM Friday to 8 PM PDT Saturday.
* IMPACTS...Hot temperatures may cause heat related illnesses.
* 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.
* 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.
* AFFECTED AREA...In Oregon, Fire Weather Zone 685 Southern
Willamette Valley.
* WINDS...North 10 to 15 mph with gusts up to 25 mph.
* RELATIVE HUMIDITY...As low as 20 percent.
* IMPACTS...Conditions may be favorable for rapid fire spread
which may threaten life and property. Use extra caution with
potential ignition sources, especially in grassy areas.
Outdoor burning is not recommended.
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...Very hot conditions with high temperatures of 100 to 107
degrees expected. Overnight low temperatures of 60 to 70 degrees.
* WHERE...The valleys of Josephine and Jackson Counties. This
includes Agness, Grants Pass, Cave Junction, Williams, Ruch, Rogue
River, Gold Hill, White City, Shady Cove, Medford, Jacksonville,
Talent and Ashland.
* WHEN...From 1 PM Friday to 8 PM PDT Monday.
* IMPACTS...Unusually hot temperatures will increase risk for heat
related illnesses. Warm overnight temperatures will provide little
relief from hot daytime temperatures.
* WHAT...Hot conditions with high temperatures of 95 to 104 degrees
expected. Overnight low temperatures of 55 to 65 degrees.
* WHERE...The valleys of central and eastern Douglas County. This
includes Camas Valley, Elkton, Drain, Sutherlin, Roseburg,
Glendale, Riddle, Canyonville, Tiller and Toketee Falls.
* WHEN...From 1 PM Friday to 8 PM PDT Sunday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* WHAT...Hot conditions with high temperatures of 95 to 100 degrees.
Overnight low temperatures of 50 to 60 degrees.
* WHERE...All areas from the Cascades eastward in Oregon, including
Union Creek, Klamath Falls, Chiloquin, Crescent, Fort Rock, Bly
and Lakeview. Also all of eastern Siskiyou County and Modoc County
in Northeast California, including Dorris, Macdoel, Tulelake,
Adin, Alturas and Likely.
* WHEN...From 1 PM Friday to 8 PM PDT Saturday.
* IMPACTS...Unusually hot temperatures will increase risk for heat
related illnesses.
...LOCALLY BREEZY WITH LOW RELATIVE HUMIDITY FRIDAY...
.As a heat wave moves over the region, a transitory period will
allow for locally breezy conditions along the east slopes of the
Oregon Cascades. The Warm Springs Reservation in particular, as
well as southeastern Wasco and northeastern Jefferson Counties,
are expected to see critical fire weather conditions during the
day Friday as RHs drop well into the teens.
The National Weather Service in Pendleton has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from 2 PM to 11 PM PDT Friday. The Fire Weather Watch is no
longer in effect.
* AFFECTED AREA...Fire Weather Zone 703 Warm Springs Reservation.
* TIMING...From 2 PM to 11 PM PDT Friday.
* WINDS...Northeast 10 to 15 mph with gusts up to 25 mph.
* RELATIVE HUMIDITY...As low as 12 percent.
* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
* 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.
