* WHAT...Hot conditions during the day for the valleys. Highs 93 to
105. Overnight lows mainly in the upper 50s and 60s.
* WHERE...Portions of North and North Central Idaho and Central,
East Central, North Central, Northeast, and Southeast Washington.
* WHEN...From noon Tuesday to 10 PM PDT Thursday.
* IMPACTS...Heat will increase the risk of heat-related illnesses,
especially those without effective cooling or adequate hydration.
* WHAT...Daytime temperatures between 95 to 100 expected. Overnight
lows between 65 to 70 will limit chances to recover from the heat
Tuesday night.
* WHERE...In Oregon, Central Columbia River Gorge I-84 Corridor,
East Portland Metro, Inner Portland Metro, and West Columbia River
Gorge I-84 Corridor. In Washington, Central Columbia River Gorge
SR 14 Corridor, East Clark County Lowlands, Inner Vancouver Metro,
and West Columbia River Gorge SR 14 Corridor.
* WHEN...From 11 AM Tuesday to 8 AM PDT Wednesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
An Air Quality Alert has been issued by the following agencies:
Washington Department of Ecology
An Air Quality Alert, issued for all of Chelan County plus
the Methow Valley down to Brewster in Okanogan County will remain
in effect until further notice, due to expected smoke from the
Pioneer Fire and other regional wildfires. Particulate matter
(PM2.5) may reach Unhealthy and Unhealthy for Sensitive Groups
levels.
Health Impacts and Recommended Actions: When air quality is Unhealthy,
everyone should reduce exposure. Limit time outside, avoid strenuous
activity, and follow tips for cleaner indoor air. When air quality
is Unhealthy for Sensitive Groups, sensitive groups should take steps
to reduce exposure. Limit time outside, avoid strenuous outdoor
activity, and follow tips for cleaner indoor air. Everyone should
watch for symptoms as a sign to reduce exposure.
Agricultural and outdoor burning restrictions are in effect.
...HOT, DRY, AND UNSTABLE WITH A SLIGHT CHANCE OF THUNDERSTORMS
OVER SOUTHEAST OREGON...
...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS
VALLEY TODAY...
Hot, dry, and unstable conditions continue with a slight chance
of thunderstorms this afternoon and evening primarily in the area
around the Strawberry Mountains. Meanwhile, breezy winds and low
RHs are expected to continue to produce critical fire weather
conditions for the Columbia Basin and Kittitas Valley this
afternoon and evening.
* AFFECTED AREA...Fire Weather Zones 641 Lower Columbia Basin of
Oregon, 690 Kittitas Valley and 691 Lower Columbia Basin.
* WINDS...West 10 to 20 mph with gusts up to 35 mph.
* RELATIVE HUMIDITY...As low as 10 percent.
* IMPACTS...The combination of sustained wind and low relative
humidity will result in conditions conducive to rapid fire
spread and extreme fire behavior.
* WHAT...Hot conditions with temperatures of 95 to 105 degrees. This
will pose a moderate 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 this evening.
* 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.
...HOT, DRY, AND UNSTABLE WITH A SLIGHT CHANCE OF THUNDERSTORMS
OVER SOUTHEAST OREGON...
...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS
VALLEY TODAY...
Hot, dry, and unstable conditions continue with a slight chance
of thunderstorms today primarily over the mountains of central
Oregon. Meanwhile, breezy winds and low RHs are expected to
produce critical fire weather conditions for the Columbia Basin
and Kittitas Valley this afternoon and evening.
* AFFECTED AREA...Fire Weather Zones 641 Lower Columbia Basin of
Oregon, 690 Kittitas Valley and 691 Lower Columbia Basin.
* WINDS...West 10 to 20 mph with gusts up to 30 mph.
* RELATIVE HUMIDITY...As low as 10 percent.
* IMPACTS...The combination of sustained wind and low relative
humidity will result in conditions conducive to rapid fire
spread and extreme fire behavior.
...RED FLAG WARNING FOR WIND AND LOW HUMIDITY SUNDAY AFTERNOON
AND EVENING ACROSS PARTS OF CENTRAL AND SOUTHERN WASHINGTON...
* Affected Area: Fire Weather Zone 705 Foothills of Central
Washington Cascades (Zone 705), Fire Weather Zone 706
Waterville Plateau (Zone 706), Fire Weather Zone 707 Western
Columbia Basin (Zone 707) and Fire Weather Zone 709 Lower
Palouse -Snake River (Zone 709).
* Winds: West 10 to 20 mph with gusts up to 35 mph. The winds will
be strongest for the Western Columbia Basin in the late
afternoon and evening hours. The winds will be strongest for
the Lower Palouse Snake River area during the afternoon.
* Relative Humidities: 8 to 18 percent.
* Impacts: The combination of gusty winds, low relative humidity
values, hot temperatures, and dried fuels could lead to rapid
fire spread on existing or new fires.
* WHAT...Hot conditions during the day for the valleys. Highs 93 to
105. Overnight lows will be in the upper 50s and 60s.
* WHERE...Portions of North and North Central Idaho and Central,
East Central, North Central, Northeast, and Southeast Washington.
* WHEN...Until 10 PM PDT this evening.
* IMPACTS...Heat will 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 temperatures 95-105 degrees expected.
This will pose a moderate to locally 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 Sunday.
* 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 during the day for the valleys. Highs 93 to
105. Overnight lows will be in the upper 50s and 60s.
* WHERE...Portions of North and North Central Idaho and Central,
East Central, North Central, Northeast, and Southeast Washington.
* WHEN...Until 10 PM PDT Sunday.
* IMPACTS...Heat will 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 temperatures 95-105 degrees expected.
This will pose a moderate to locally 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 Sunday.
* 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.
...HOT, DRY, AND UNSTABLE WITH A CHANCE OF THUNDERSTORMS OVER
SOUTHEAST OREGON THIS WEEKEND...
...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS
VALLEY SUNDAY...
Hot, dry, and unstable conditions continue through the weekend,
along with a slight chance of thunderstorms on Sunday primarily
over the mountains of central Oregon. Meanwhile, breezy winds and
low RHs are expected to produce critical fire weather conditions
for the Columbia Basin and Kittitas Valley on Sunday.
The National Weather Service in Pendleton has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from 11 AM to 9 PM PDT Sunday. The Fire Weather Watch is no
longer in effect.
* AFFECTED AREA...Fire Weather Zones 641 Lower Columbia Basin of
Oregon, 690 Kittitas Valley and 691 Lower Columbia Basin.
* WINDS...West 15 to 25 mph with gusts up to 30 mph.
* RELATIVE HUMIDITY...As low as 10 percent.
* IMPACTS...The combination of sustained wind and low relative
humidity will result in conditions conducive to rapid fire
spread and extreme fire behavior.
...RED FLAG WARNING FOR WIND AND LOW HUMIDITY SUNDAY AFTERNOON AND
EVENING ACROSS PARTS OF CENTRAL AND SOUTHERN WASHINGTON...
The National Weather Service in Spokane has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from 2 PM to 9 PM PDT Sunday. The Fire Weather Watch is no longer
in effect.
* Affected Area: Fire Weather Zone 705 Foothills of Central
Washington Cascades and Fire Weather Zone 706 Waterville Plateau.
* Winds: West 10 to 20 mph with gusts up to 35 mph.
* Relative Humidities: 10 to 19 percent.
* Impacts: The combination of gusty winds, low relative humidity
values, hot temperatures, and dried fuels could lead to rapid
fire spread on existing or new fires.
...RED FLAG WARNING FOR WIND AND LOW HUMIDITY SUNDAY AFTERNOON AND
EVENING ACROSS PARTS OF CENTRAL AND SOUTHERN WASHINGTON...
The National Weather Service in Spokane has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from 2 PM to 9 PM PDT Sunday.
* Affected Area: Fire Weather Zone 707 Western Columbia Basin and
Fire Weather Zone 709 Lower Palouse-Snake River.
* Winds: West 10 to 20 mph with gusts up to 30 mph. The winds will
be strongest for the Western Columbia Basin in the late
afternoon and evening hours. The winds will be strongest for the
Lower Palouse Snake River area during the afternoon.
* Relative Humidities: 8 to 18 percent.
* Impacts: The combination of gusty winds, low relative humidity
values, hot temperatures, and dried fuels could lead to rapid
fire spread on existing or new fires.
...HOT, DRY, AND UNSTABLE WITH A CHANCE OF THUNDERSTORMS OVER
SOUTHEAST OREGON THIS WEEKEND...
...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS
VALLEY SUNDAY...
Hot, dry, and unstable conditions look to continue through the
weekend with a chance at thunderstorms now on Sunday that could
rise up into the region. Meanwhile breezy winds and low RH's may
produce critical fire weather conditions for the Columbia Basin
and Kittitas Valley on Sunday.
* AFFECTED AREA...Fire Weather Zones 641 Lower Columbia Basin of
Oregon, 690 Kittitas Valley and 691 Lower Columbia Basin.
* WINDS...West 10 to 20 mph with gusts up to 30 mph.
* RELATIVE HUMIDITY...As low as 13 percent.
* IMPACTS...The combination of sustained wind and low relative
humidity will result in conditions conducive to rapid fire
spread and extreme fire behavior.
* WHAT...Hot conditions during the day for the valleys. Highs 93 to
105. Overnight lows will be in the upper 50s and 60s.
* WHERE...Portions of North and North Central Idaho and Central,
East Central, North Central, Northeast, and Southeast Washington.
* WHEN...Until 10 PM PDT Sunday.
* IMPACTS...Hot temperatures may cause heat illnesses.
...DRY AND BREEZY CONDITIONS EXPECTED IN THE LEE OF THE CASCADES
ON SUNDAY AFTERNOON AND EVENING...
Breezy winds, hot temperatures, and low relative humidity values
will occur over the area on Sunday afternoon and evening. This
will result in an elevated fire risk on existing or new fires.
* Affected Area: Fire Weather Zone 705 Foothills of Central
Washington Cascades (Zone 705) and Fire Weather Zone 706
Waterville Plateau (Zone 706).
* Winds: West 10 to 20 mph with gusts up to 35 mph.
* Relative Humidities: 10 to 18 percent.
* Impacts: The combination of gusty winds, low relative humidity
values, hot temperatures, and dried fuels could lead to rapid
fire spread on existing or new fires.
* WHAT...Hot conditions with temperatures 95-105 degrees expected.
This will pose a moderate to locally 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 Sunday.
* 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.
...HOT, DRY, AND UNSTABLE WITH A CHANCE OF THUNDERSTORMS OVER
SOUTHEAST OREGON THIS WEEKEND...
...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS
VALLEY SUNDAY...
Hot, dry, and unstable conditions coupled with a threat of
isolated thunderstorms over southeast Oregon this weekend brings a
risk of dry lightning startups and potential for extreme fire
behavior. Breezy winds will also develop through the Cascade gaps
Sunday, and will coincide with critically low RHs in the
afternoon.
* AFFECTED AREA...Fire Weather Zones 641 Lower Columbia Basin of
Oregon, 690 Kittitas Valley and 691 Lower Columbia Basin.
* WINDS...West 15 to 25 mph with gusts up to 35 mph.
* RELATIVE HUMIDITY...As low as 13 percent.
* IMPACTS...The combination of sustained wind and low relative
humidity will result in conditions conducive to rapid fire
spread and extreme fire behavior.
* WHAT...Hot conditions with temperatures 95-105 degrees expected.
This will pose a moderate to locally 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 Sunday.
* 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.
