* WHAT...Hot conditions with temperatures up to 96 degrees. This
will pose moderate to major risk of heat-related illness.
* WHERE...Foothills of the Blue Mountains of Oregon and Washington,
Simcoe Highlands, and Lower Slopes of the Eastern Washington
Cascades Crest.
* WHEN...Until 9 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses. 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...Lingering cloud cover from thunderstorms in
southern Oregon may result in lower than forecast afternoon
temperatures or higher than forecast overnight low temperatures.
* WHAT...Dangerously hot conditions with temperatures up to 95 to
100 degrees expected. This will pose a major risk of heat-related
illness.
* WHERE...Eastern Columbia River Gorge of Oregon and Washington,
Lower Columbia Basin of Oregon and Washington, Kittitas Valley,
and Yakima Valley.
* WHEN...Until 9 PM PDT Tuesday.
* 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.
* ADDITIONAL DETAILS...Lingering cloud cover from thunderstorms in
southern Oregon may result in lower than forecast afternoon
temperatures or higher than forecast overnight low temperatures.
* WHAT...Hot conditions with temperatures up to 96 degrees. This
will pose moderate to major risk of heat-related illness.
* WHERE...Foothills of the Blue Mountains of Oregon and Washington,
Simcoe Highlands, and Lower Slopes of the Eastern Washington
Cascades Crest.
* WHEN...Until 9 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses. 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...Lingering cloud cover from thunderstorms in
southern Oregon may result in lower than forecast afternoon
temperatures or higher than forecast overnight low temperatures.
* WHAT...Dangerously hot conditions with temperatures up to 95 to
100 degrees expected. This will pose a major risk of heat-related
illness.
* WHERE...Eastern Columbia River Gorge of Oregon and Washington,
Lower Columbia Basin of Oregon and Washington, Kittitas Valley,
and Yakima Valley.
* WHEN...Until 9 PM PDT Tuesday.
* 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.
* ADDITIONAL DETAILS...Lingering cloud cover from thunderstorms in
southern Oregon may result in lower than forecast afternoon
temperatures or higher than forecast overnight low temperatures.
At 430 PM PDT, Doppler radar was tracking a strong thunderstorm 7
miles southwest of Elderberry Flat Campground, or 11 miles northeast
of Grants Pass, moving south at 5 mph.
HAZARD...Winds in excess of 30 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible. Heavy rain is possible, and may result in some
localized high water.
This storm will remain over mainly rural areas of west central
Jackson and northeastern Josephine Counties.
At 428 PM PDT, Doppler radar was tracking a strong thunderstorm 7
miles east of Warner Wetlands, or 38 miles northeast of Lakeview,
moving north at 5 mph.
HAZARD...Winds in excess of 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible. Heavy rain is possible over the Hart Mountain
wildfire burn scar, which may result in localized debris
flows.
This storm will remain over mainly rural areas of east central Lake
County, including portions of the Hart Mountain Antelope Refuge.
* WHAT...Hot conditions with high temperatures ranging from the
upper 80s to low 90s and low temperatures in the mid 60s. This
will pose a major risk of heat-related illness.
* WHERE...City of Seattle, Eastside, and Lowlands of Pierce and
Southern King Counties.
* WHEN...Until 5 AM PDT Wednesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* WHAT...Hot conditions with high temperatures ranging from the mid
80s to low 90s expected and low temperatures mostly in the 60s.
This will pose a moderate risk of heat-related illness.
* WHERE...Portions of northwest and west central Washington.
* WHEN...Until 5 AM PDT Wednesday.
* 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 with high temperatures ranging from the 80s
to near 90 degrees expected and low temperatures in the 60s. This
will pose a moderate risk of heat-related illness.
* WHERE...Lake Crescent Area Including US 101.
* WHEN...Until 5 AM PDT Wednesday.
* 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 with high temperatures in the mid to upper
80s and low temperatures in the 60s to 70s. This will pose a
moderate risk of heat-related illness.
* WHERE...Eastern Strait of Juan de Fuca and Western Strait of Juan
de Fuca.
* WHEN...Until 5 AM PDT Tuesday.
* 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 with high temperatures ranging from the
upper 80s to upper 90s and low temperatures mostly in the 60s.
This will pose a 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 AM PDT Wednesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* 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 to 30 percent.
* TEMPERATURES...Up to 95.
* 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...Dangerously hot conditions with temperatures up to 96 to
100 degrees expected. This will pose a major risk of heat-related
illness.
* WHERE...Eastern Columbia River Gorge of Oregon and Washington,
Lower Columbia Basin of Oregon and Washington, Kittitas Valley,
and Yakima Valley.
* WHEN...Until 9 PM PDT Tuesday.
* 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.
* WHAT...Hot conditions with temperatures up to 96 degrees. This
will pose moderate to major risk of heat-related illness.
* WHERE...Foothills of the Blue Mountains of Oregon and Washington,
Simcoe Highlands, and Lower Slopes of the Eastern Washington
Cascades Crest.
* WHEN...Until 9 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses. 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...Dangerously hot conditions with temperatures up to 96 to
100 degrees expected. This will pose a major risk of heat-related
illness.
* WHERE...Eastern Columbia River Gorge of Oregon and Washington,
Lower Columbia Basin of Oregon and Washington, Kittitas Valley,
and Yakima Valley.
* WHEN...Until 9 PM PDT Tuesday.
* 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.
* WHAT...Hot conditions with temperatures up to 96 degrees. This
will pose moderate to major risk of heat-related illness.
* WHERE...Foothills of the Blue Mountains of Oregon and Washington,
Simcoe Highlands, and Lower Slopes of the Eastern Washington
Cascades Crest.
* WHEN...Until 9 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses. 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 temperatures. High temperatures 95 to 102 degrees.
Limited overnight relief with low temperatures 61 to 72.
* WHERE...Chelan, Coulee City, Leavenworth, Lewiston, Pomeroy,
Brewster, Nespelem, Okanogan, Grand Coulee, Gifford, Othello,
Cashmere, Pangborn Airport, Odessa, Wilbur, Peck, Ritzville, Omak,
Quincy, Bridgeport, Plain, Culdesac, Moses Lake, Ephrata, Number 1
Canyon, Entiat, Tonasket, Alpowa Summit, Harrington, Mansfield,
Clarkston, Creston, Badger Mountain Road, Number 2 Canyon,
Oroville, Wenatchee, Lewiston Grade, Disautel Pass, Lapwai, and
Waterville.
* WHEN...Until 9 PM PDT Wednesday.
* IMPACTS...Hot temperatures will increase the risk of heat-related
illnesses. Heat of this magnitude affects anyone without cooling
and hydration as well as health systems and industries.
The National Weather Service in Medford has issued a Red Flag
Warning, which is in effect from 1 PM to 9 PM PDT Tuesday.
* IMPACTS...Abundant lightning on dry fuels resulting in the
potential for numerous new fire starts.
* AFFECTED AREA...In California, all of Fire weather zones 280,
281, 282, 284, and 285, and in Oregon, all of Fire weather
zones 617, 620, 621, 622, 623, 624, and 625.
* THUNDERSTORMS...Scattered thunderstorms with abundant lightning
expected. Storms are likely to be wet, but lightning strikes
outside of precipitation cores are possible, and may cause many
new fire starts. Isolated overnight and early morning storms are
possible east of the Cascades, but confidence is low.
* OUTFLOW WINDS...Gusts of 35 to 50 mph could travel outward up
to 25 miles from thunderstorm cores.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
The National Weather Service in Medford has issued a Red Flag
Warning, which is in effect from 1 PM to 9 PM PDT Tuesday.
* IMPACTS...Abundant lightning on dry fuels resulting in the
potential for numerous new fire starts.
* AFFECTED AREA...In California, all of Fire weather zones 280,
281, 282, 284, and 285, and in Oregon, all of Fire weather
zones 617, 620, 621, 622, 623, 624, and 625.
* THUNDERSTORMS...Scattered thunderstorms with abundant lightning
expected. Storms are likely to be wet, but lightning strikes
outside of precipitation cores are possible, and may cause many
new fire starts. Isolated overnight and early morning storms are
possible east of the Cascades, but confidence is low.
* OUTFLOW WINDS...Gusts of 35 to 50 mph could travel outward up
to 25 miles from thunderstorm cores.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr