* WHAT...Temperatures up to 96.
* WHERE...In Oregon, North Oregon Cascades, Cascades of Lane County,
and Cascades of Marion and Linn Counties. In Washington, South
Washington Cascades.
* WHEN...Until 10 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* WHAT...Dangerously hot conditions with temperatures 100 to 105
expected. Overnight temperatures will be slow to cool off each
evening, only falling below 70 degrees for a short period each
night, if at all. The warm nighttime temperatures will limit
chances to recover from the heat, exacerbating the risk of
heat-related illness in this prolonged heat wave.
* WHERE...Portions of northwest and west central Oregon and
southwest Washington.
* WHEN...Until 10 PM PDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...The most intense portion of this heat wave
has not yet occurred. The hottest temperatures are expected Monday
and Tuesday, with Monday night being the warmest night.
* WHAT...Temperatures up to 96.
* WHERE...In Oregon, North Oregon Cascades, Cascades of Lane County,
and Cascades of Marion and Linn Counties. In Washington, South
Washington Cascades.
* WHEN...Until 10 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* WHAT...Dangerously hot conditions with temperatures 100 to 105
expected. Overnight temperatures will be slow to cool off each
evening, only falling below 70 degrees for a short period each
night, if at all. The warm nighttime temperatures will limit
chances to recover from the heat, exacerbating the risk of
heat-related illness in this prolonged heat wave.
* WHERE...Portions of northwest and west central Oregon and
southwest Washington.
* WHEN...Until 10 PM PDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...The most intense portion of this heat wave
has not yet occurred. The hottest temperatures are expected Monday
and Tuesday, with Monday night being the warmest night.
* WHAT...Dangerously hot conditions with little overnight relief.
Afternoon high temperatures potentially as high as 105 degrees.
Overnight and morning lows in the 60s.
* WHERE...Lower Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 10 PM PDT Wednesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Major to locally Extreme HeatRisk (risk of
heat-related impacts) is anticipated through the duration of the
event.
* WHAT...Hot temperatures with modest overnight relief. Afternoon
high temperatures potentially reaching 105 degrees in the Grande
Ronde Valley, with highs in the 90s up to or exceeding 100 degrees
in the mountains and mountain valleys. Overnight and morning low
temperatures in the 50 and 60s.
* WHERE...Blue Mountains of Oregon and Washington, Grande Ronde
Valley, and Wallowa County.
* WHEN...From noon Monday to 10 PM PDT Wednesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...In Wallowa County, hottest temperatures will
be in the canyons, especially Hells Canyon. Moderate to locally
Extreme HeatRisk (risk of heat-related impacts) is anticipated
through the duration of the event.
* WHAT...Dangerously hot conditions with little overnight relief.
Afternoon high temperatures potentially exceeding 110 degrees in
some areas. Overnight low temperatures in the 60s and 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...Major to locally Extreme HeatRisk (risk of
heat-related impacts) is anticipated through the duration of the
event.
* WHAT...Hot temperatures with modest overnight relief. Afternoon
high temperatures potentially reaching 105 along the East Slopes
of the Oregon Cascades, and potentially exceeding 100 degrees
along the Upper Slopes of the Eastern Washington Cascades Crest.
* WHERE...In Oregon, East Slopes of the Oregon Cascades. In
Washington, Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...From noon Monday to 10 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Moderate to Major HeatRisk (risk of
heat-related impacts) is anticipated through the duration of the
event.
* WHAT...Hot temperatures with modest overnight relief. Afternoon
high temperatures potentially reaching 105 degrees in the Grande
Ronde Valley, with highs in the 90s up to or exceeding 100 degrees
in the mountains and mountain valleys. Overnight and morning low
temperatures in the 50 and 60s.
* WHERE...Blue Mountains of Oregon and Washington, Grande Ronde
Valley, and Wallowa County.
* WHEN...From noon Monday to 10 PM PDT Wednesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...In Wallowa County, hottest temperatures will
be in the canyons, especially Hells Canyon. Moderate to locally
Extreme HeatRisk (risk of heat-related impacts) is anticipated
through the duration of the event.
* WHAT...Dangerously hot conditions with little overnight relief.
Afternoon high temperatures potentially exceeding 110 degrees in
some areas. Overnight low temperatures in the 60s and 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...Major to locally Extreme HeatRisk (risk of
heat-related impacts) is anticipated through the duration of the
event.
* WHAT...Dangerously hot conditions with little overnight relief.
Afternoon high temperatures potentially exceeding 105 degrees.
Overnight lows in the upper 50s to 60s.
* 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...Major to locally Extreme HeatRisk (risk of
heat-related impacts) is anticipated through the duration of the
event.
* WHAT...Hot temperatures with modest overnight relief. Afternoon
high temperatures potentially reaching 105 along the East Slopes
of the Oregon Cascades, and potentially exceeding 100 degrees
along the Upper Slopes of the Eastern Washington Cascades Crest.
* WHERE...In Oregon, East Slopes of the Oregon Cascades. In
Washington, Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...From noon Monday to 10 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Moderate to Major HeatRisk (risk of
heat-related impacts) is anticipated through the duration of the
event.
* WHAT...Dangerously hot conditions during the day for the valleys.
Highs will be in the 90s, except 97 to 103 on Tuesday and
Wednesday. Overnight lows will be in 50s to low 60s.
* WHERE...Bonners Ferry, Metaline Falls, Mullan, Kettle Falls,
Highway 20 Wauconda Summit, Colville, Inchelium, Wallace,
Fruitland, Springdale-Hunters Road, Ione, Kellogg, Sherman Pass,
Eastport, Tiger, Metaline, Schweitzer Mountain Road, Newport,
Pinehurst, Fourth Of July Pass, Deer Park, Dobson Pass, Wauconda,
Clark Fork, Chesaw Road, St. Maries, Osburn, Athol, Sandpoint,
Fernwood, Flowery Trail Road, Priest River, Lookout Pass, Boulder
Creek Road, Chewelah, Republic, Orin-Rice Road, and Northport.
* WHEN...From noon today to 10 PM PDT Wednesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* WHAT...Hot conditions during the day for the valleys. Highs will
be in the 90s. Overnight lows will be in 50s to low 60s.
* WHERE...Stehekin, Holden Village, and Stevens Pass.
* WHEN...Until 10 PM PDT Wednesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* WHAT...Dangerously hot conditions during the day with little
relief overnight. Highs will be in the mid 90s to lower 100s
except Tuesday and Wednesday with highs 100 to 108. Overnight lows
will be in 60s to mid 70s.
* WHERE...Portions of North and North Central Idaho and Central,
East Central, North Central, Northeast, and Southeast Washington.
* WHEN...Until 10 PM PDT Wednesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme 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 15 to 20 percent.
* TEMPERATURES...Up to 85 to 95 degrees.
* MID-LEVEL HAINES...6
* 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 temperatures in the upper 80s and 90s
expected. This will pose a moderate to major risk of heat-
related illness.
* WHERE...Portions of northwest and west central Washington.
* WHEN...Until 10 PM PDT Tuesday.
* IMPACTS...his level of 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.
* ADDITIONAL DETAILS...Temperatures will gradually cool during the
middle of next week, but remain well above normal.
* WHAT...Hot conditions with temperatures in the upper 70s and 80s
near the coast. Temperatures in the 80s and lower 90s away from
the coast. This will pose a moderate risk of heat-related illness.
* WHERE...Western Strait of Juan De Fuca, North Coast and
Central Coast.
* 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.
* ADDITIONAL DETAILS...Marine air may move into coastal areas
Monday providing relief. However, well above-normal temperatures
will persist inland well into next week.
* 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 and high humidity may cause heat
illnesses. Area rivers will be cold and can cause shock to
swimmers.
* ADDITIONAL DETAILS...This will be a long-duration heatwave with
hot temperatures through Tuesday.
* 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.
* ADDITIONAL DETAILS...This will be a multi-day heat wave with the
hottest temperatures today through Monday and then continuing very
hot on Tuesday.