The Southwest Clean Air Agency, the Oregon Department of Environmental
Quality, and the Lane Regional Air Protection Agency has issued an
Air Quality Advisory, which is IN EFFECT UNTIL 8 PM PDT TUESDAY.
An Air Quality Advisory for Ozone has been issued. High levels of
ozone in the lower atmosphere in the region combined with
forecasted conditions will cause air quality to reach unhealthy
levels at times through Tuesday evening.
Pollutants in smoke can cause burning eyes, runny nose, aggravate
heart and lung diseases, and aggravate other serious health
problems. Limit outdoor activities and keep children indoors if it
is smoky. Please follow medical advice if you have a heart or lung
condition.
More information about air quality can be found at:
www.swcleanair.gov
www.oregon.gov/DEQ
www.lrapa.org
CORRECTED TO ADD WA695
...HOT, DRY AND UNSTABLE ALONG WITH BREEZY WINDS TUESDAY THROUGH
LATE WEDNESDAY...
.High pressure that has brought the hot temperatures the past
weekend is showing signs of breaking down. The instability will
increase as a result, and the combination of hot, dry and
unstable weather warrants Red Flag Warnings and Fire Weather
Watches. In addition, breezy winds will develop through the
Cascade gaps and into portions of the Columbia Basin Wednesday
and will coincide with low relative humidities in the afternoon
and evening.
* AFFECTED AREA...Fire Weather Zones 642 Southern Blue and
Strawberry Mountains, 643 Northern Blue Mountains of Oregon,
644 Central Blue Mountains, 645 Wallowa District and 692 Blue
Mountains of Washington.
* TIMING...Tuesday afternoon through Wednesday evening.
* WINDS...Northwest 5 to 15 mph.
* RELATIVE HUMIDITY...As low as 9 percent.
* TEMPERATURES...Up to 101.
* IMPACTS...There is a chance of extreme fire behavior for any
new and existing fires.
* HAINES...As high as 6.
CORRECTED TO ADD WA695
...HOT, DRY AND UNSTABLE ALONG WITH BREEZY WINDS TUESDAY THROUGH
LATE WEDNESDAY...
.High pressure that has brought the hot temperatures the past
weekend is showing signs of breaking down. The instability will
increase as a result, and the combination of hot, dry and
unstable weather warrants Red Flag Warnings and Fire Weather
Watches. In addition, breezy winds will develop through the
Cascade gaps and into portions of the Columbia Basin Wednesday
and will coincide with low relative humidities in the afternoon
and evening.
* 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 12 percent.
* IMPACTS...Breezy conditions combined with low RHs will result
in rapid fire spread and extreme fire behavior.
CORRECTED TO ADD WA695
...HOT, DRY AND UNSTABLE ALONG WITH BREEZY WINDS TUESDAY THROUGH
LATE WEDNESDAY...
.High pressure that has brought the hot temperatures the past
weekend is showing signs of breaking down. The instability will
increase as a result, and the combination of hot, dry and
unstable weather warrants Red Flag Warnings and Fire Weather
Watches. In addition, breezy winds will develop through the
Cascade gaps and into portions of the Columbia Basin Wednesday
and will coincide with low relative humidities in the afternoon
and evening.
* AFFECTED AREA...Fire Weather Zones 610 East Slopes of Central
Oregon Cascades, 611 Deschutes National Forest -minus Sisters
Ranger District, 639 East Slopes of the Northern Oregon
Cascades, 640 Central Mountains of Oregon, 694 Yakama Alpine
District and 695 East Washington South Central Cascade
Mountains.
* TIMING...Today through Tuesday night.
* WINDS...North 10 to 15 mph.
* RELATIVE HUMIDITY...As low as 8 percent.
* TEMPERATURES...Up to 105.
* IMPACTS...Any new and existing fires have a strong potential
for extreme fire behavior.
* HAINES...As high as 6.
...HOT AND DRY WITH CRITICAL HUMIDITIES AND BREEZY NORTHERLY WINDS
ACROSS THE SOUTHERN WILLAMETTE VALLEY ON MONDAY, JULY 8TH...
The National Weather Service in Portland has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from 1 PM this afternoon to 7 PM PDT this evening.
* AFFECTED AREA...In Oregon, Fire Weather Zone 685 covering the
Southern Willamette Valley.
* WINDS...North 10 to 15 mph with gusts up to 25 mph.
* RELATIVE HUMIDITY...As low as 15 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.
* WHAT...Dangerously hot conditions with limited overnight relief.
Afternoon high temperatures of 95 to 110 degrees. Overnight low
temperatures in the 60s to mid-70s.
* WHERE...Portions of north central and northeast Oregon and
central, south central, and southeast Washington.
* WHEN...Until 10 PM PDT Wednesday.
* IMPACTS...Heat-related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Hottest temperatures during this
long-duration heatwave are expected Tuesday.
* WHAT...Dangerously hot conditions with limited overnight relief.
Afternoon high temperatures of 95 to 110 degrees. Overnight low
temperatures in the mid-50s to lower 70s.
* WHERE...Central Oregon and John Day Basin.
* WHEN...Until 10 PM PDT Wednesday.
* IMPACTS...Heat-related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Hottest temperatures during this
long-duration heatwave are expected Tuesday.
* WHAT...Hot temperatures with modest overnight relief. Afternoon
high temperatures of 90 to 105 degrees, highest in lower valleys
and canyons. Overnight low temperatures in the mid 50s to upper
60s, lowest in high valleys.
* WHERE...Blue Mountains of Oregon and Washington, Grande Ronde
Valley, and Wallowa County.
* WHEN...From noon today to 10 PM PDT Wednesday.
* IMPACTS...Hot temperatures may cause heat-related illnesses.
* ADDITIONAL DETAILS...Hottest temperatures during this
long-duration heatwave are expected Tuesday and Wednesday.
* WHAT...Hot temperatures with modest overnight relief. Afternoon
high temperatures of 90 to 105 degrees, highest along the East
Slopes of the Oregon Cascades. Overnight low temperatures in the
low 50s to upper 60s, lowest in valleys.
* WHERE...In Oregon, East Slopes of the Oregon Cascades. In
Washington, Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...From noon today to 10 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat-related illnesses.
* ADDITIONAL DETAILS...Hottest temperatures during this
long-duration heatwave are expected Tuesday.
...DRY AND BREEZY CONDITIONS WEDNESDAY...
.Breezy winds will develop through the Cascade gaps and into
portions of the Columbia Basin Wednesday and will coincide with
low relative humidities in the afternoon and evening.
The National Weather Service in Pendleton has issued a Fire
Weather Watch for wind and low relative humidity, which is in
effect from Wednesday afternoon through Wednesday evening.
* 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 12 percent.
* IMPACTS...Breezy conditions combined with low RHs will result
in rapid fire spread and extreme fire behavior.
* WHAT...High temperatures of 100 to 110 with low temperatures in
the mid to upper 60s expected.
* WHERE...Central Douglas County and Eastern Douglas County
Foothills. This includes the cities of Roseburg, Toketee Falls,
and Sutherlin.
* WHEN...Until 9 PM PDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events, particularly for those working or
participating in outdoor activities. Area rivers will be cold and
can cause shock to swimmers.
* WHAT...High temperatures of 95 to 102 degrees with lows in the mid
to upper 50s expected.
* WHERE...In California, Modoc County and eastern Siskiyou County.
This includes the cities and communities of Macdoel, Tulelake,
Pondosa, Bray, Tennant, Dorris, Tionesta, Alturas, and Adin. In
Oregon, Klamath and Lake counties. This includes the cities of
Klamath Falls, Chemult, Summer Lake, Chiloquin, Malin, Keno,
Sprague River, and Lakeview.
* WHEN...Until 9 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses. Area rivers
will be cold and can cause shock to swimmers.
* WHAT...Dangerously hot conditions with high temperatures 105 to
115, and low temperatures in the mid 60s to lower 70s.
* WHERE...In California, western and central Siskiyou County. This
includes the cities of Yreka, Weed, Etna, Happy Camp, Mt Shasta
City, and Dunsmuir. In Oregon, Josephine and Jackson counties and
eastern Curry County. This includes the entire Rogue Valley and
the cities of Medford, Grants Pass, Cave Junction, and Butte Falls.
* WHEN...Until 9 PM PDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Area rivers will be cold and can cause shock
to swimmers.
* WHAT...For the Excessive Heat Warning, dangerously hot
conditions with temperatures 105-110 expected. For the
Excessive Heat Watch, dangerously hot conditions with
temperatures up to 106 possible.
* WHERE...Oregon Lower Treasure Valley.
* WHEN...For the Excessive Heat Warning, from 2 PM Monday to
midnight MDT Thursday night. For the Excessive Heat Watch,
from late Thursday night through Sunday evening.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...For the Excessive Heat Warning, dangerously hot
conditions with temperatures 105-110 expected. For the
Excessive Heat Watch, dangerously hot conditions with
temperatures up to 106 possible.
* WHERE...Portions of southwest and west central Idaho and
southeast Oregon.
* WHEN...For the Excessive Heat Warning, from 11 AM MDT /10 AM
PDT/ Tuesday to midnight MDT /11 PM PDT/ Thursday night. For
the Excessive Heat Watch, from late Thursday night through
Sunday evening.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...For the Heat Advisory, temperatures up to 100-103
expected. For the Excessive Heat Watch, dangerously hot
conditions with temperatures up to 104 possible.
* WHERE...Harney County.
* WHEN...For the Heat Advisory, from 10 AM Tuesday to 11 PM PDT
Thursday. For the Excessive Heat Watch, from Thursday evening
through Sunday evening.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...For the Excessive Heat Warning, dangerously hot
conditions with temperatures 105-110, hottest in the lower
elevations near the Snake River. For the Excessive Heat Watch,
dangerously hot conditions with temperatures up to 103 possible.
* WHERE...Baker County.
* WHEN...For the Excessive Heat Warning, from 10 AM Tuesday to
11 PM PDT Wednesday. For the Excessive Heat Watch, from
Thursday evening through Sunday evening.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...For the Excessive Heat Warning, dangerously hot
conditions with temperatures 105-110 expected. For the
Excessive Heat Watch, dangerously hot conditions with
temperatures up to 106 possible.
* WHERE...Portions of southwest and west central Idaho and
southeast Oregon.
* WHEN...For the Excessive Heat Warning, from 11 AM MDT /10 AM
PDT/ Tuesday to midnight MDT /11 PM PDT/ Thursday night. For
the Excessive Heat Watch, from late Thursday night through
Sunday evening.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...For the Excessive Heat Warning, dangerously hot
conditions with temperatures 105-110 expected. For the
Excessive Heat Watch, dangerously hot conditions with
temperatures up to 106 possible.
* WHERE...Oregon Lower Treasure Valley.
* WHEN...For the Excessive Heat Warning, from 2 PM Monday to
midnight MDT Thursday night. For the Excessive Heat Watch,
from late Thursday night through Sunday evening.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...For the Heat Advisory, temperatures up to 100-103
expected. For the Excessive Heat Watch, dangerously hot
conditions with temperatures up to 104 possible.
* WHERE...Harney County.
* WHEN...For the Heat Advisory, from 10 AM Tuesday to 11 PM PDT
Thursday. For the Excessive Heat Watch, from Thursday evening
through Sunday evening.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
