...Potential for abundant lightning this weekend...
* Thunderstorms...Scattered storms with little to no precipitation
and abundant lightning are possible today and Sunday.
* Outflow Winds...Up to 50 MPH possible.
* Timing...For the Red Flag Warning, from noon MDT /11 AM PDT/
today to 9 PM MDT /8 PM PDT/ this evening. For the Fire
Weather Watch, from Sunday afternoon through Sunday evening.
* Thunderstorms...15 to 30 percent expected coverage.
* Timing...For the Red Flag Warning, from noon MDT /11 AM PDT/
today to 9 PM MDT /8 PM PDT/ this evening. 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 today and Sunday.
* Outflow Winds...Up to 50 MPH possible.
* Timing...For the Red Flag Warning, from noon MDT /11 AM PDT/
today to 9 PM MDT /8 PM PDT/ this evening. For the Fire
Weather Watch, from Sunday afternoon through Sunday evening.
* Thunderstorms...15 to 30 percent expected coverage.
* Timing...For the Red Flag Warning, from noon MDT /11 AM PDT/
today to 9 PM MDT /8 PM PDT/ this evening. For the Fire
Weather Watch, from Sunday afternoon through Sunday evening.
...HOT, DRY, AND UNSTABLE WITH A CHANCE OF THUNDERSTORMS OVER
SOUTHEAST OREGON THIS WEEKEND...
...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS
VALLEY SUNDAY...
Hot, dry, and unstable conditions look to continue through the
weekend with a chance at thunderstorms now on Sunday that could
rise up into the region. Meanwhile breezy winds and low RH's may
produce critical fire weather conditions for the Columbia Basin
and Kittitas Valley on Sunday.
* AFFECTED AREA...Fire Weather Zone 642 Southern Blue and
Strawberry Mountains.
* WINDS...West 5 to 10 mph.
* RELATIVE HUMIDITY...As low as 9 percent.
* TEMPERATURES...Up to 99.
* IMPACTS...For the Red Flag Warning - Any new and existing fires
have a strong potential for extreme fire behavior. For the fire
weather watch - 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, but will be capable of producing
strong, gusty outflow winds.
* OUTFLOW WINDS...Gusts of 35 to 50 mph possible.
* HAINES...As high as 6.
...HOT, DRY, AND UNSTABLE WITH A CHANCE OF THUNDERSTORMS OVER
SOUTHEAST OREGON THIS WEEKEND...
...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS
VALLEY SUNDAY...
Hot, dry, and unstable conditions look to continue through the
weekend with a chance at thunderstorms now on Sunday that could
rise up into the region. Meanwhile breezy winds and low RH's may
produce critical fire weather conditions for the Columbia Basin
and Kittitas Valley on Sunday.
* AFFECTED AREA...Fire Weather Zones 641 Lower Columbia Basin of
Oregon, 690 Kittitas Valley and 691 Lower Columbia Basin.
* WINDS...West 10 to 20 mph with gusts up to 30 mph.
* RELATIVE HUMIDITY...As low as 13 percent.
* IMPACTS...The combination of sustained wind and low relative
humidity will result in conditions conducive to rapid fire
spread and extreme fire behavior.
...HOT, DRY, AND UNSTABLE WITH A CHANCE OF THUNDERSTORMS OVER
SOUTHEAST OREGON THIS WEEKEND...
...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS
VALLEY SUNDAY...
Hot, dry, and unstable conditions look to continue through the
weekend with a chance at thunderstorms now on Sunday that could
rise up into the region. Meanwhile breezy winds and low RH's may
produce critical fire weather conditions for the Columbia Basin
and Kittitas Valley on Sunday.
* AFFECTED AREA...Fire Weather Zone 642 Southern Blue and
Strawberry Mountains.
* WINDS...West 5 to 10 mph.
* RELATIVE HUMIDITY...As low as 9 percent.
* TEMPERATURES...Up to 99.
* IMPACTS...For the Red Flag Warning - Any new and existing fires
have a strong potential for extreme fire behavior. For the fire
weather watch - 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, but will be capable of producing
strong, gusty outflow winds.
* OUTFLOW WINDS...Gusts of 35 to 50 mph possible.
* HAINES...As high as 6.
* WHAT...Dangerously hot conditions through Sunday, 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 today, 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/ tonight. For the Heat Advisory, from midnight MDT /11
PM PDT/ tonight 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 today, 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 this
evening. For the Heat Advisory, from 11 PM this evening 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 today, 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 this
evening. For the Heat Advisory, from 11 PM this evening 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 today, especially at lower elevations.
* WHERE...Portions of south central and southwest Idaho and
southeast Oregon.
* WHEN...Until midnight MDT /11 PM PDT/ tonight.
* 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 today, 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/ tonight. For the Heat Advisory, from midnight MDT /11
PM PDT/ tonight 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...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...High temperatures of 95 to 101 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 this evening.
* IMPACTS...Hot temperatures may cause heat illnesses. Area rivers
will be cold and can cause shock to swimmers.
* WHAT...High temperatures of 95 to 103 degrees and lows of 55 to 65
are expected.
* WHERE...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 this evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Area rivers will be cold and can cause shock
to swimmers.
...Complex fire weather environment evolves this weekend...
.Hot, dry and windy conditions will remain in place over most of
Oregon today, although approaching monsoon moisture from the
south will increase the threat of lightning across the forecast
area this afternoon and evening. Storms will likely be on the
drier side today given available moisture in the air. The threat
for storms is higher on Sunday as the moisture content increases.
...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 today, critical
conditions due to gusty winds and low RH are expected north of a
line from Chiloquin to Paisley while lightning on dry fuels is
expected south.
* WIND...Southwest 15 to 25 with gusts to 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. These outflow winds can
travel up to 50 miles away from the thunderstorm that caused
it.
* ADDITIONAL INFORMATION...The best chance for storms will be
Sunday afternoon into Sunday evening. Isolated dry thunderstorms
are more likely today as the atmosphere appears to be very dry.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
...Complex fire weather environment evolves this weekend...
.Hot, dry and windy conditions will remain in place over most of
Oregon today, although approaching monsoon moisture from the
south will increase the threat of lightning across the forecast
area this afternoon and evening. Storms will likely be on the
drier side today given available moisture in the air. The threat
for storms is higher on Sunday as the moisture content increases.
...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 today, critical
conditions due to gusty winds and low RH are expected north of a
line from Chiloquin to Paisley while lightning on dry fuels is
expected south.
* WIND...Southwest 15 to 25 with gusts to 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. These outflow winds can
travel up to 50 miles away from the thunderstorm that caused
it.
* ADDITIONAL INFORMATION...The best chance for storms will be
Sunday afternoon into Sunday evening. Isolated dry thunderstorms
are more likely today as the atmosphere appears to be very dry.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
...HOT, DRY, AND UNSTABLE WITH A CHANCE OF THUNDERSTORMS OVER
SOUTHEAST OREGON THIS WEEKEND...
...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS
VALLEY SUNDAY...
Hot, dry, and unstable conditions coupled with a threat of
isolated thunderstorms over southeast Oregon this weekend brings a
risk of dry lightning startups and potential for extreme fire
behavior. 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, but will be capable of producing strong,
gusty outflow winds.
* OUTFLOW WINDS...Gusts of 35 to 50 mph possible.
...HOT, DRY, AND UNSTABLE WITH A CHANCE OF THUNDERSTORMS OVER
SOUTHEAST OREGON THIS WEEKEND...
...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS
VALLEY SUNDAY...
Hot, dry, and unstable conditions coupled with a threat of
isolated thunderstorms over southeast Oregon this weekend brings a
risk of dry lightning startups and potential for extreme fire
behavior. 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 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...The combination of sustained wind and low relative
humidity will result in conditions conducive to rapid fire
spread and extreme fire behavior.
* 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.
...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 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. These outflow winds can
travel up to 50 miles away from the thunderstorm that caused
it.
* 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
