* 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 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.
...CHANCE OF THUNDERSTORMS OVER SOUTHEAST OREGON THIS WEEKEND...
...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS
VALLEY...
A threat of isolated thunderstorms over southeast Oregon this
weekend brings a risk of dry lightning startups. Breezy winds will
also develop through the Cascade gaps Sunday, and will coincide
with critically low RHs in the afternoon.
The National Weather Service in Pendleton has issued a Fire
Weather Watch for wind and low relative humidity, which is in
effect from Sunday afternoon through Sunday 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 13 percent.
* IMPACTS...New fire starts with cloud-to-ground lightning should
be expected with any storms that develop. Gusty outflow winds
will threaten fires with rapid growth.
...CHANCE OF THUNDERSTORMS OVER SOUTHEAST OREGON THIS WEEKEND...
...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS
VALLEY...
A threat of isolated thunderstorms over southeast Oregon this
weekend brings a risk of dry lightning startups. 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 642 Southern Blue and
Strawberry Mountains and 644 Central Blue Mountains.
* IMPACTS...New fire starts with cloud-to-ground lightning
should be expected with any storms that develop. Gusty outflow
winds will threaten fires with rapid growth.
* THUNDERSTORMS...Any storms that develop will initially have
little to no rainfall.
* OUTFLOW WINDS...Gusts of 25 to 35 mph possible.
...CHANCE OF THUNDERSTORMS OVER SOUTHEAST OREGON THIS WEEKEND...
...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS
VALLEY...
A threat of isolated thunderstorms over southeast Oregon this
weekend brings a risk of dry lightning startups. Breezy winds will
also develop through the Cascade gaps Sunday, and will coincide
with critically low RHs in the afternoon.
The National Weather Service in Pendleton has issued a Fire
Weather Watch for wind and low relative humidity, which is in
effect from Sunday afternoon through Sunday 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 13 percent.
* IMPACTS...New fire starts with cloud-to-ground lightning should
be expected with any storms that develop. Gusty outflow winds
will threaten fires with rapid growth.
* WHAT...Hot conditions during the day for the valleys. Highs 95 to
105. Overnight lows will be in the upper 50s and 60s.
* WHERE...Central and eastern Washington and parts of the Idaho
Panhandle including the Okanogan Valley, Wenatchee and Waterville
Plateau, Columbia Basin, Washington Palouse, Spokane and Coeur
d'Alene area, the Lewiston Clarkston Valley and Camas Prairie.
* WHEN...Until 10 PM PDT Sunday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* WHAT...Hot conditions during the day for the valleys. Highs 93 to
100. Overnight lows will be in the upper 50s and 60s.
* WHERE...The Cascade valleys, the valleys of the Okanogan Highlands
and northeast Washington, the north Idaho Panhandle and the Idaho
Palouse.
* WHEN...Until 10 PM PDT Sunday.
* IMPACTS...Hot temperatures may cause heat illnesses.
...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT SATURDAY FOR
STRONG GUSTY WIND AND LOW RH AND ABUNDANT LIGHTNING ON DRY FUELS
FOR FIRE WEATHER ZONES 624 AND 625...
...FIRE WEATHER WATCH NOW IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE
WEATHER ZONES 624 AND 625...
* IMPACTS...Given the recent prolonged stretch of very hot and
very dry conditions, lightning efficiency will be high to very
high for fire starts. Any fires that develop will likely spread
rapidly.
* AFFECTED AREA...For the Red Flag Warning for today, portions of
the Fremont- Winema National Forest in Oregon Fire zone 624,
Fire weather zone 625 in central and eastern Lake County. For
the Red Flag Warning for Saturday, critical conditions due to
gusty winds and low RH are expected north of a line from
Chiloquin to Paisley while abundant lightning on dry fuels is
expected south.
* WIND...Southwest 15 to 25 with gusting 25 and 35 mph.
* HUMIDITY...7 to 12 percent.
* THUNDERSTORMS...Isolated to scattered high based storms that are
likely to have very little to no precipitation, especially
outside of storm cores. Lightning strikes outside of
precipitation cores are possible and cause for concern.
* OUTFLOW WINDS...Gusts up to 35 mph.
* ADDITIONAL INFORMATION...The best chance for storms will be
Saturday afternoon into Saturday evening, then again Sunday
afternoon into Sunday evening. Isolated thunderstorms are
possible late Saturday night into Sunday morning.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT SATURDAY FOR
STRONG GUSTY WIND AND LOW RH AND ABUNDANT LIGHTNING ON DRY FUELS
FOR FIRE WEATHER ZONES 624 AND 625...
...FIRE WEATHER WATCH NOW IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE
WEATHER ZONES 624 AND 625...
* IMPACTS...Given the recent prolonged stretch of very hot and
very dry conditions, lightning efficiency will be high to very
high for fire starts. Any fires that develop will likely spread
rapidly.
* AFFECTED AREA...For the Red Flag Warning for today, portions of
the Fremont- Winema National Forest in Oregon Fire zone 624,
Fire weather zone 625 in central and eastern Lake County. For
the Red Flag Warning for Saturday, critical conditions due to
gusty winds and low RH are expected north of a line from
Chiloquin to Paisley while abundant lightning on dry fuels is
expected south.
* WIND...Southwest 15 to 25 with gusting 25 and 35 mph.
* HUMIDITY...7 to 12 percent.
* THUNDERSTORMS...Isolated to scattered high based storms that are
likely to have very little to no precipitation, especially
outside of storm cores. Lightning strikes outside of
precipitation cores are possible and cause for concern.
* OUTFLOW WINDS...Gusts up to 35 mph.
* ADDITIONAL INFORMATION...The best chance for storms will be
Saturday afternoon into Saturday evening, then again Sunday
afternoon into Sunday evening. Isolated thunderstorms are
possible late Saturday night into Sunday morning.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT SATURDAY FOR
STRONG GUSTY WIND AND LOW RH AND ABUNDANT LIGHTNING ON DRY FUELS
FOR FIRE WEATHER ZONES 624 AND 625...
...FIRE WEATHER WATCH NOW IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE
WEATHER ZONES 624 AND 625...
* IMPACTS...Given the recent prolonged stretch of very hot and
very dry conditions, lightning efficiency will be high to very
high for fire starts. Any fires that develop will likely spread
rapidly.
* AFFECTED AREA...For the Red Flag Warning for today, portions of
the Fremont- Winema National Forest in Oregon Fire zone 624,
Fire weather zone 625 in central and eastern Lake County. For
the Red Flag Warning for Saturday, critical conditions due to
gusty winds and low RH are expected north of a line from
Chiloquin to Paisley while abundant lightning on dry fuels is
expected south.
* WIND...Southwest 15 to 25 with gusting 25 and 35 mph.
* HUMIDITY...7 to 12 percent.
* THUNDERSTORMS...Isolated to scattered high based storms that are
likely to have very little to no precipitation, especially
outside of storm cores. Lightning strikes outside of
precipitation cores are possible and cause for concern.
* OUTFLOW WINDS...Gusts up to 35 mph.
* ADDITIONAL INFORMATION...The best chance for storms will be
Saturday afternoon into Saturday evening, then again Sunday
afternoon into Sunday evening. Isolated thunderstorms are
possible late Saturday night into Sunday morning.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
* WHAT...Dangerously hot conditions through Saturday, especially
at lower elevations. Hot conditions will continue on Sunday for
the Heat Advisory.
* WHERE...Baker County.
* WHEN...For the Excessive Heat Warning, until 11 PM PDT
Saturday. For the Heat Advisory, from 11 PM Saturday to 11 PM
PDT Sunday.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...Dangerously hot conditions through Saturday, especially
at lower elevations.
* WHERE...In Idaho, Lower Treasure Valley ID. In Oregon, Oregon
Lower Treasure Valley.
* WHEN...Until midnight MDT Sunday night.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...Dangerously hot conditions through Saturday, especially
at lower elevations. Hot conditions will continue on Sunday for
the Heat Advisory.
* WHERE...In Idaho, Upper Weiser River. In Oregon, Malheur
County.
* WHEN...For the Excessive Heat Warning, until midnight MDT /11
PM PDT/ Saturday night. For the Heat Advisory, from midnight
MDT /11 PM PDT/ Saturday night to midnight MDT /11 PM PDT/
Sunday night.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...Dangerously hot conditions through Saturday, especially
at lower elevations. Hot conditions will continue on Sunday for
the Heat Advisory.
* WHERE...Baker County.
* WHEN...For the Excessive Heat Warning, until 11 PM PDT
Saturday. For the Heat Advisory, from 11 PM Saturday to 11 PM
PDT Sunday.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...Hot conditions through Saturday, especially at lower
elevations.
* WHERE...Portions of south central and southwest Idaho and
southeast Oregon.
* WHEN...Until midnight MDT /11 PM PDT/ Saturday night.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...Dangerously hot conditions through Saturday, especially
at lower elevations. Hot conditions will continue on Sunday for
the Heat Advisory.
* WHERE...In Idaho, Upper Weiser River. In Oregon, Malheur
County.
* WHEN...For the Excessive Heat Warning, until midnight MDT /11
PM PDT/ Saturday night. For the Heat Advisory, from midnight
MDT /11 PM PDT/ Saturday night to midnight MDT /11 PM PDT/
Sunday night.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
...Potential for abundant lightning this weekend...
The National Weather Service in Boise has issued a Red Flag
Warning for lightning, which is in effect from noon MDT /11 AM
PDT/ to 9 PM MDT /8 PM PDT/ Saturday.
* Thunderstorms...Scattered storms with little to no
precipitation and abundant lightning are possible Saturday and
Sunday.
* Outflow Winds...Up to 50 MPH possible.
* Timing...For the Red Flag Warning, from noon MDT /11 AM PDT/
to 9 PM MDT /8 PM PDT/ Saturday. For the Fire Weather Watch,
from Sunday afternoon through Sunday evening.
* Thunderstorms...15 to 25 percent expected coverage.
* Timing...For the Red Flag Warning, from noon MDT /11 AM PDT/
to 9 PM MDT /8 PM PDT/ Saturday. For the Fire Weather Watch,
from Sunday afternoon through Sunday evening.
...Potential for abundant lightning this weekend...
* Thunderstorms...Scattered storms with little to no
precipitation and abundant lightning are possible Saturday and
Sunday.
* Outflow Winds...Up to 50 MPH possible.
* Timing...From late Saturday morning through Sunday evening.
...Potential for abundant lightning this weekend...
The National Weather Service in Boise has issued a Red Flag
Warning for lightning, which is in effect from noon MDT /11 AM
PDT/ to 9 PM MDT /8 PM PDT/ Saturday.
* Thunderstorms...Scattered storms with little to no
precipitation and abundant lightning are possible Saturday and
Sunday.
* Outflow Winds...Up to 50 MPH possible.
* Timing...For the Red Flag Warning, from noon MDT /11 AM PDT/
to 9 PM MDT /8 PM PDT/ Saturday. For the Fire Weather Watch,
from Sunday afternoon through Sunday evening.
* Thunderstorms...15 to 25 percent expected coverage.
* Timing...For the Red Flag Warning, from noon MDT /11 AM PDT/
to 9 PM MDT /8 PM PDT/ Saturday. For the Fire Weather Watch,
from Sunday afternoon through Sunday evening.
Oregon Department of Environmental Quality has issued an Air
Pollution Advisory...in effect until 5 PM PDT Monday.
Wildfires burning in the region combined with forecast conditions
will cause air quality levels to fluctuate and could be at unhealthy
levels.
The Oregon Department of Environmental Quality issued an air quality
advisory for southern Klamath and southern Lake counties due to
smoke from the Salt Creek fire. DEQ also expects other areas of the
state may see intermittent smoke from ongoing large wildfires.
Smoke levels can change rapidly depending on the weather. Smoke can
irritate the eyes and lungs and worsen some medical conditions.
People most at risk include infants and young children, people with
heart or lung disease, older adults and pregnant people.
Keep windows and doors closed. If its too hot, run air conditioning
on recirculate or consider moving to a cooler location. Avoid
strenuous outdoor activity. Use high-efficiency particulate air
(HEPA) filters in indoor ventilation systems or portable air
purifiers. Be aware of smoke in your area and avoid places with the
highest levels. When air quality improves to moderate or healthy,
open windows and doors to air out homes and businesses. If you have a
breathing plan for a medical condition, be sure to follow it and
keep any needed medications refilled.
Smoke levels can change rapidly depending on the weather. People at
risk include infants and young children, people with heart or lung
disease, older adults and pregnant people.
For additional information...please visit the web site at
https://oregonsmoke.org