...Complex fire weather environment evolves this weekend...
.Hot, dry and windy conditions will remain in place over most of
Oregon today, and approaching monsoon moisture from the south
will increase the threat of lightning across the forecast area
beginning today and even more so on Sunday. Storms will likely be
dry today given a very dry sub-cloud layer. The threat for storms
is higher on Sunday as the moisture content increases and storms
become a mix of wet and dry.
* 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...Eastern portions of FWZ 621, east of the
Jackson/Josephine county border.
* 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, but isolated thunderstorms
are possible late tonight into Sunday morning. Storms are
likely to be dry tonight due to a very dry sub-cloud layer.
Storms will trend wetter on Sunday, but remain a mix of wet and
dry storms.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
...RED FLAG WARNING FOR WIND AND LOW HUMIDITY SUNDAY AFTERNOON AND
EVENING ACROSS PARTS OF CENTRAL AND SOUTHERN WASHINGTON...
The National Weather Service in Spokane has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from 2 PM to 9 PM PDT Sunday. The Fire Weather Watch is no longer
in effect.
* Affected Area: Fire Weather Zone 705 Foothills of Central
Washington Cascades and Fire Weather Zone 706 Waterville Plateau.
* Winds: West 10 to 20 mph with gusts up to 35 mph.
* Relative Humidities: 10 to 19 percent.
* Impacts: The combination of gusty winds, low relative humidity
values, hot temperatures, and dried fuels could lead to rapid
fire spread on existing or new fires.
...RED FLAG WARNING FOR WIND AND LOW HUMIDITY SUNDAY AFTERNOON AND
EVENING ACROSS PARTS OF CENTRAL AND SOUTHERN WASHINGTON...
The National Weather Service in Spokane has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from 2 PM to 9 PM PDT Sunday.
* Affected Area: Fire Weather Zone 707 Western Columbia Basin and
Fire Weather Zone 709 Lower Palouse-Snake River.
* Winds: West 10 to 20 mph with gusts up to 30 mph. The winds will
be strongest for the Western Columbia Basin in the late
afternoon and evening hours. The winds will be strongest for the
Lower Palouse Snake River area during the afternoon.
* Relative Humidities: 8 to 18 percent.
* Impacts: The combination of gusty winds, low relative humidity
values, hot temperatures, and dried fuels could lead to rapid
fire spread on existing or new fires.
* 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 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...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...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 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.
...Potential for abundant lightning this evening and again
on Sunday...
The National Weather Service in Boise has issued a Red Flag
Warning for lightning, which is in effect from noon MDT /11 AM
PDT/ Sunday to midnight MDT /11 PM PDT/ Sunday night. The Fire
Weather Watch is no longer in effect.
* Thunderstorms...Isolated to scattered storms with little to no
precipitation and abundant lightning are possible this evening
and Sunday.
* Outflow Winds...Up to 50 MPH possible.
* Timing...For the first Red Flag Warning, until 9 PM MDT /8 PM
PDT/ this evening. For the second Red Flag Warning, from noon
MDT /11 AM PDT/ Sunday to midnight MDT /11 PM PDT/ Sunday
night.
* Thunderstorms...15 to 30 percent expected coverage. Greatest
coverage will be across southern portions of the fire zones.
...Potential for abundant lightning this evening and again
on Sunday...
The National Weather Service in Boise has issued a Red Flag
Warning for lightning, which is in effect from noon MDT /11 AM
PDT/ Sunday to midnight MDT /11 PM PDT/ Sunday night. The Fire
Weather Watch is no longer in effect.
* Thunderstorms...Isolated to scattered storms with little to no
precipitation and abundant lightning are possible this evening
and Sunday.
* Outflow Winds...Up to 50 MPH possible.
* Timing...For the first Red Flag Warning, until 9 PM MDT /8 PM
PDT/ this evening. For the second Red Flag Warning, from noon
MDT /11 AM PDT/ Sunday to midnight MDT /11 PM PDT/ Sunday
night.
* Thunderstorms...15 to 30 percent expected coverage. Greatest
coverage will be across southern portions of the fire zones.
...Potential for abundant lightning this weekend...
* Thunderstorms...Scattered storms with little to no precipitation
and abundant lightning are possible Sunday.
* Outflow Winds...Up to 50 MPH possible.
* Timing...From late Sunday morning 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.
...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 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.
...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.