...ISOLATED TO SCATTERED THUNDERSTORMS IN KITTAS VALLEY AND EAST-
WASHINGTON SOUTH CENTRAL CASCADE MOUNTAINS TOMORROW...
.Isolated to scattered thunderstorms capable of producing
abundant cloud-to-ground lightning are forecast Saturday
beginning around 4 PM through 3 AM Sunday. Some storms will
produce a wetting rain.
* AFFECTED AREA...Fire Weather Zones 690 Kittitas Valley and 695
East Washington South Central Cascade Mountains.
* TIMING...From 4 PM Saturday to 3 AM PDT Sunday.
* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
* THUNDERSTORMS...Isolated to scattered thunderstorms capable of
producing abundant cloud-to-ground lightning and gusty outflow
winds.
* OUTFLOW WINDS...Gusts up to 50 mph.
...SCATTERED THUNDERSTORMS SATURDAY AFTERNOON INTO SATURDAY
NIGHT...
.Scattered thunderstorms will develop in the Cascades starting
Saturday afternoon and expand into the western Columbia Basin
during the evening and overnight hours with potential for
abundant lightning. Storms will also be capable of gusty
outflow winds of 30 to 40 mph.
The National Weather Service in Spokane has issued a Red Flag
Warning for thunderstorms, which is in effect from 4 PM Saturday
to 3 AM PDT Sunday.
* Affected Area: East Washington Central Cascades (Zone 696),
Foothills of Central Washington Cascades (Zone 705),
Waterville Plateau (Zone 706) and Western Columbia Basin (Zone
707).
* Thunderstorms: Scattered thunderstorms with rainfall amounts
between a trace and 0.15"
* Outflow Winds: Gusty and erratic outflow winds of 30 to 40 mph.
* Impacts: New fire starts are likely with thunderstorms. Gusty
outflow winds may lead to fire spread with new or existing
fires.
An Air Quality Alert for smoke has been issued by Puget Sound Clean
Air Agency until 1200 PM PDT Saturday. Wildfires burning in
Washington and Canada will continue to cause air quality to reach
Unhealthy for Sensitive Groups to Unhealthy levels for portions of
King County and southern Snohomish County.
Everyone, especially sensitive groups, should limit time spent
spent outdoors, avoid strenuous activities outdoors, and choose
light indoor activities.
For current air quality conditions and additional information visit
www.pscleanair.gov.
An Air Quality Alert has been issued by the following agencies:
Washington Department of Ecology
Spokane Regional Clean Air Agency
An Air Quality Alert has been issued for Stevens, Spokane, Lincoln,
Grant, Pend Oreille, Ferry, Chelan, Douglas, Adams, Garfield,
Okanogan, Whitman, and Asotin Counties until further notice due to
current wildfire smoke from regional wildfires. When air quality is
Unhealthy, everyone should reduce exposure. Limit time outside,
avoid strenuous outdoor activity, and follow tips for cleaner indoor
air.
The Washington State Department of Ecology and/or the Yakima
Regional Clean Air Agency has issued an Air Quality Alert.. until
11 PM PDT Monday.
A Smoke Air Quality Alert has been issued. Wildfires burning in the
region combined with forecasted conditions will cause air quality to
reach unhealthy levels.
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.
Information about air quality from the Washington Department of
Ecology Web site is available at http://www.ecy.wa.gov/air.html or
call 360-407-6000.Information about air quality is on the Yakima
Regional Clean Air Agency Web site at http://www.yakimacleanair.org
or call 509-834-2050.
An Air Quality Alert has been issued by the following agencies:
Washington Department of Ecology
Spokane Regional Clean Air Agency
An Air Quality Alert has been issued for Stevens, Spokane, Lincoln,
Grant, Pend Oreille, Ferry, Chelan, Douglas, Adams, Garfield,
Okanogan, Whitman, and Asotin Counties until further notice due to
current wildfire smoke from regional wildfires. When air quality is
Unhealthy, everyone should reduce exposure. Limit time outside,
avoid strenuous outdoor activity, and follow tips for cleaner indoor
air.
* 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 29 percent.
* TEMPERATURES...Up to 88.
* 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.
* 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 ALONG THE WASHINGTON CASCADES
TODAY...
...ISOLATED TO SCATTERED THUNDERSTORMS IN CENTRAL AND EASTERN
OREGON FRIDAY...
.Hot, dry, and unstable conditions will lead to the potential for
rapid fire growth on new and existing fires along the Washington
Cascades this afternoon and evening. Farther south, isolated to
scattered thunderstorms capable of producing abundant cloud-to-
ground lightning are forecast Friday for much of central and
eastern Oregon.
* AFFECTED AREA...Fire Weather Zone 695 East Washington South
Central Cascade Mountains.
* TIMING...Until 9 PM PDT this evening.
* IMPACTS...Hot, dry, and unstable conditions will lead to the
potential for rapid fire growth on new or existing fires.
* WHAT...Hot conditions with afternoon high temperatures of 90 to
100 degrees expected. This will pose a moderate to major risk of
heat-related illness.
* WHERE...Lower Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 8 PM PDT this evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
* WHAT...Hot conditions with afternoon high temperatures of 85 to 95
degrees. This will pose a moderate to major risk of heat-related
illness.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...Until 8 PM PDT this evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
* WHAT...Dangerously hot conditions with afternoon high temperatures
of 90 to 100 degrees expected. This will pose a major risk of
heat-related illness.
* WHERE...Portions of north central and northeast Oregon and
central, south central, and southeast Washington.
* WHEN...Until 8 PM PDT this evening.
* IMPACTS...Heat-related illnesses increase significantly during
extreme heat events.
An Air Quality Alert has been issued by the following agencies:
Washington Department of Ecology
Spokane Regional Clean Air Agency
An Air Quality Alert has been issued for Stevens, Spokane, Lincoln,
Grant, Pend Oreille, Ferry, Chelan, Douglas, Adams, Garfield,
Okanogan, Whitman, and Asotin Counties until further notice due to
current wildfire smoke from regional wildfires. When air quality is
Unhealthy, everyone should reduce exposure. Limit time outside,
avoid strenuous outdoor activity, and follow tips for cleaner indoor
air.
The Washington State Department of Ecology and/or the Yakima
Regional Clean Air Agency has issued an Air Quality Alert for
Kittitas, Yakima, Klickitat, Benton, Walla Walla, Franklin, and
Columbia counties until further notice due to current and expected
wildfire smoke from regional wildfires.
When air quality is unhealthy, everyone should reduce exposure. Limit
time outside, avoid strenuous outdoor activity, and follow tips for
cleaner indoor air. Drink plenty of fluids, stay in an air-
conditioned room, and check up on relatives and neighbors.
Information about air quality from the Washington Department of
Ecology Web site is available at http://www.ecy.wa.gov/air.html or
call 360-407-6000.Information about air quality is on the Yakima
Regional Clean Air Agency Web site at http://www.yakimacleanair.org
or call 509-834-2050.
* Affected Area: Okanogan Highlands and Kettle Mountains (Zone
699), Selkirk Mountains of Northeast Washington (Zone 700),
Foothills of Northeast Washington (Zone 701) and Colville
Reservation (Zone 702).
* Winds: Terrain driven winds 2 to 5 mph becoming northwest to
north overnight 3 to 7 mph.
* Relative Humidities: Minimum 10 to 18 percent. Humidity
recoveries on midslopes within thermal belts of 25 to 35
percent.
* Temperatures: 97 to 103 valleys. 85 to 90 mountains.
* Impacts: Hot, dry, unstable conditions will lead to the
potential for rapid fire growth on new or existing fires.
* Affected Area: East Washington Central Cascades (Zone 696).
* Winds: Terrain driven winds around 5 mph, except northwest 10
to 15 mph with gusts to near 20 mph Wednesday night.
* Relative Humidities: 10 to 19 percent. Humidity
recoveries on midslopes within thermal belts of 25 to 35 percent.
* Temperatures: 97 to 102 valleys. 85 to 90 mountains.
* Impacts: Hot, dry, unstable conditions will lead to the
potential for rapid fire growth on new or existing fires.
* WHAT...Hot conditions with high temperatures ranging from the mid
80s to the lower 90s and low temperatures in the 60s. This will
pose a moderate to locally 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 PM PDT this afternoon.
* 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 percent.
* TEMPERATURES...Up to 85.
* 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...Afternoon high temperatures in the upper 80s to low 90s
expected.
* WHERE...Western and Central Columbia River Gorge and the Hood
River Valley.
* WHEN...Until 8 PM PDT this evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Cooler overnight lows in the mid 60s tonight
will provide relief from daytime heat.
* 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 percent.
* TEMPERATURES...Up to 85.
* 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 mid
80s to the lower 90s and low temperatures in the 60s. This will
pose a moderate to locally 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 PM PDT Thursday.
* 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.
