* WHAT...Flash flooding and debris flows caused by excessive
rainfall are possible over the 2024 burn areas associated with
active wildfires.
* WHERE...Portions of Oregon, including the following areas,
Cascades of Lane County, Cascades of Marion and Linn Counties and
North Oregon Cascades and southwest Washington, including the
following area, South Washington Cascades.
* WHEN...From Saturday afternoon through late Saturday night.
* IMPACTS...Heavy rainfall over the 2024 burn areas is expected
Saturday afternoon through late Saturday night. People near the
2024 burn areas should prepare for potential flooding impacts. Be
sure to stay up to date with information from local authorities.
Heavy rainfall could trigger flash flooding or debris flows near
active 2024 wildfires.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over 2024 burn areas associated with active
wildfires, which may lead to flash flooding and debris flows.
Hourly rainfall rates up to 0.75 inches per hour will be
possible.
- http://www.weather.gov/safety/flood
* WHAT...Flash flooding and debris flows caused by excessive
rainfall are possible over the 2024 burn areas associated with
active wildfires.
* WHERE...Portions of Oregon, including the following areas,
Cascades of Lane County, Cascades of Marion and Linn Counties and
North Oregon Cascades and southwest Washington, including the
following area, South Washington Cascades.
* WHEN...From Saturday afternoon through late Saturday night.
* IMPACTS...Heavy rainfall over the 2024 burn areas is expected
Saturday afternoon through late Saturday night. People near the
2024 burn areas should prepare for potential flooding impacts. Be
sure to stay up to date with information from local authorities.
Heavy rainfall could trigger flash flooding or debris flows near
active 2024 wildfires.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over 2024 burn areas associated with active
wildfires, which may lead to flash flooding and debris flows.
Hourly rainfall rates up to 0.75 inches per hour will be
possible.
- http://www.weather.gov/safety/flood
* WHAT...Flash flooding and debris flows caused by excessive
rainfall are possible over burn scars and steep terrain.
* WHERE...A portion of North Central Washington, including the
following counties, Chelan and Okanogan.
* WHEN...From late Friday morning through Friday evening.
* IMPACTS...Heavy rainfall over burn scars in the North Cascades is
possible during the period of the watch. Heavy rainfall could
trigger flash flooding and debris flows in and near recent
wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over the burn scars along the east slopes of the
North Cascades late Friday morning through Friday evening,
which may lead to flash flooding and debris flows.
- http://www.weather.gov/safety/flood
...SCATTERED LIGHTNING THROUGH THIS EVENING IN OR636, OR637,
OR646, ID402, AND ID403...
...HOT, DRY, WINDY SATURDAY AFTERNOON AND EVENING IN OR636, OR637,
ID423, AND ID426...
...HIGH HAINES SATURDAY AFTERNOON AND EVENING IN IDAHO ZONES 401,
402, 403, AND 421...
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SATURDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITIES FOR
FIRE WEATHER ZONES 636 AND 637...
The National Weather Service in Boise has issued a Fire Weather
Watch for gusty winds and low relative humidities, which is in
effect from Saturday afternoon through Saturday evening.
* Affected Area...In Oregon, Fire Weather Zones 636 Burns BLM
and 637 Vale BLM.
.For the Red Flag Warning...
* Thunderstorms...Scattered
* Outflow Winds...Gusts up to 50 mph possible.
.For the Fire Weather Watch...
* Winds...West 15 to 25 mph with gusts up to 35 mph.
* Relative Humidity...As low as 9 percent.
* Temperatures...Up to 92.
* Timing...For the Red Flag Warning, until 10 PM MDT /9 PM PDT/
this evening. For the Fire Weather Watch, from Saturday
afternoon through Saturday evening.
...SCATTERED LIGHTNING THROUGH THIS EVENING IN OR636, OR637,
OR646, ID402, AND ID403...
...HOT, DRY, WINDY SATURDAY AFTERNOON AND EVENING IN OR636, OR637,
ID423, AND ID426...
...HIGH HAINES SATURDAY AFTERNOON AND EVENING IN IDAHO ZONES 401,
402, 403, AND 421...
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SATURDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITIES FOR
FIRE WEATHER ZONES 636 AND 637...
The National Weather Service in Boise has issued a Fire Weather
Watch for gusty winds and low relative humidities, which is in
effect from Saturday afternoon through Saturday evening.
* Affected Area...In Oregon, Fire Weather Zones 636 Burns BLM
and 637 Vale BLM.
.For the Red Flag Warning...
* Thunderstorms...Scattered
* Outflow Winds...Gusts up to 50 mph possible.
.For the Fire Weather Watch...
* Winds...West 15 to 25 mph with gusts up to 35 mph.
* Relative Humidity...As low as 9 percent.
* Temperatures...Up to 92.
* Timing...For the Red Flag Warning, until 10 PM MDT /9 PM PDT/
this evening. For the Fire Weather Watch, from Saturday
afternoon through Saturday evening.
...SCATTERED LIGHTNING THROUGH THIS EVENING IN OR636, OR637,
OR646, ID402, AND ID403...
...HOT, DRY, WINDY SATURDAY AFTERNOON AND EVENING IN OR636, OR637,
ID423, AND ID426...
...HIGH HAINES SATURDAY AFTERNOON AND EVENING IN IDAHO ZONES 401,
402, 403, AND 421...
* Thunderstorms...Scattered
* Outflow Winds...Gusts up to 45 mph possible.
* Timing...Until 9 PM PDT this evening.
* WHAT...High concentration of smoke particulates from wildfire
smoke.
* WHERE...Harney County.
* WHEN...UNTIL NOON PDT FRIDAY.
* IMPACTS...Smoke can irritate the eyes, lungs and worsen some
medical conditions. People most at risk to adverse health effects
include infants, young children, people with heart or lung
disease, older adults, and pregnant women.
* ADDITIONAL DETAILS...Smoke levels can change rapidly depending on
weather. Check current conditions on the Oregon Smoke Information
Blog, DEQ's Air Quality Index, or by downloading the free
OregonAIR app on your smartphone.
* WHAT...Flash flooding caused by excessive rainfall due to
thunderstorms is possible.
* WHERE...A portion of south central Washington, including the
following areas, Lower Slopes of the Eastern Washington Cascades
Crest and Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...From Saturday afternoon through late Saturday night.
* IMPACTS...Heavy rainfall could trigger flash flooding of low-lying
areas, urbanized street flooding, and debris flows in and near
recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall from thunderstorms over the burn scars along the
east slopes of the WA Cascades, which may lead to flash
flooding and debris flows.
- http://www.weather.gov/safety/flood
* IMPACTS...Abundant lightning on dry fuels will increase the
risk of new fire starts. Additionally, gusty outflow winds
will allow for new and existing fires to grow rapidly.
* AFFECTED AREA...Most of Oregon Fire Zones 624 and 625 north
of Highway 140. This includes the Warner Peak Fire, though
the greatest coverage of storms is likely to be north and
west of the Warner Peak Fire.
* THUNDERSTORMS...Another round of isolated to scattered
thunderstorms is expected this afternoon and evening, with the
greatest coverage expected north of a line from Chiloquin to
Paisley. Despite rain with these thunderstorms, lightning
strikes outside of precipitation cores are possible and cause
for concern.
* OUTFLOW WINDS...Quickly shifting winds with outflow gusts up
to 40 to 50 mph. These outflow winds can travel up to 50
miles away from the thunderstorm that caused it.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
...SCATTERED LIGHTNING THROUGH THURSDAY EVENING IN OREGON FIRE
WEATHER ZONES 636, 637, 646...
SCATTERED LIGHTNING THURSDAY AFTERNOON AND EVENING IN IDAHO FIRE
WEATHER ZONES 402 AND 403...
* Thunderstorms...Scattered
* Outflow Winds...Gusts up to 45 mph possible.
* Timing...Until 9 PM PDT this evening.
...SCATTERED LIGHTNING THROUGH THURSDAY EVENING IN OREGON FIRE
WEATHER ZONES 636, 637, 646...
SCATTERED LIGHTNING THURSDAY AFTERNOON AND EVENING IN IDAHO FIRE
WEATHER ZONES 402 AND 403...
* Thunderstorms...Scattered
* Outflow Winds...Gusts up to 50 mph possible.
* Timing...Until 10 PM MDT /9 PM PDT/ this evening.
...ISOLATED TO WIDELY SCATTERED HIGH-BASED STORMS OVERNIGHT INTO
THURSDAY IN OREGON ZONES 611, 640, and 642...
...SCATTERED TO NUMEROUS STORMS THURSDAY AFTERNOON AND EVENING
ACROSS OREGON ZONES 644 and 645...
.Satellite and radar imagery currently show shower activity across
central Oregon. Lightning strikes across the warned areas have
thus far been limited, but weather models do continue to show a
potential for thunderstorm activity for the warned areas,
particularly across the eastern mountains of Oregon, with a
potential flare-up in storm activity occurring Thursday
afternoon. While wet storms are still in the forecast, fuels are
receptive enough to warrant a Red Flag Warning, with lightning
strikes still leading to new fire starts even under a wetting
rain.
* AFFECTED AREA...Fire Weather Zones 644 Central Blue Mountains
and 645 Wallowa District.
* IMPACTS...Thunderstorms will be capable of producing frequent
cloud-to-ground lightning and erratic, gusty outflow winds.
This combination will promote conditions conducive to new fire
starts and rapid fire spread for new and existing fires.
* THUNDERSTORMS...Abundant lightning with frequent cloud-to-
ground lightning strikes.
* OUTFLOW WINDS...Gusty winds up to 40 mph.
...ISOLATED TO WIDELY SCATTERED HIGH-BASED STORMS OVERNIGHT INTO
THURSDAY IN OREGON ZONES 611, 640, and 642...
...SCATTERED TO NUMEROUS STORMS THURSDAY AFTERNOON AND EVENING
ACROSS OREGON ZONES 644 and 645...
.Satellite and radar imagery currently show shower activity across
central Oregon. Lightning strikes across the warned areas have
thus far been limited, but weather models do continue to show a
potential for thunderstorm activity for the warned areas,
particularly across the eastern mountains of Oregon, with a
potential flare-up in storm activity occurring Thursday
afternoon. While wet storms are still in the forecast, fuels are
receptive enough to warrant a Red Flag Warning, with lightning
strikes still leading to new fire starts even under a wetting
rain.
* AFFECTED AREA...Fire Weather Zones 611 Deschutes National
Forest -minus Sisters Ranger District, 640 Central Mountains
of Oregon and 642 Southern Blue and Strawberry Mountains.
* IMPACTS...Thunderstorms will be capable of producing frequent
cloud-to-ground lightning and erratic, gusty outflow winds.
This combination will promote conditions conducive to new fire
starts and rapid fire spread for new and existing fires.
* THUNDERSTORMS...Abundant lightning with frequent cloud-to-
ground lightning strikes.
* OUTFLOW WINDS...Gusty winds up to 40 mph.
...ISOLATED TO WIDELY SCATTERED HIGH-BASED STORMS LATE TONIGHT
AND THURSDAY IN OREGON ZONES 611, 640, and 642...
...SCATTERED TO NUMEROUS STORMS THURSDAY AFTERNOON AND EVENING
ACROSS OREGON ZONES 644 and 645...
.Isolated to widely scattered high-based thunderstorms, capable
of producing abundant lightning, are anticipated to develop or
move into central Oregon late tonight. A low chance of wetting
rains (less than 50 percent) is associated with these storms. A
lull in thunderstorm potential then exists during the early to
late morning.
Another round of thunderstorms with greater coverage is then
forecast Thursday afternoon and evening stretching from central
OR through the Wallowas. While isolated to widely scattered storms
are more likely than not across central Oregon, scattered to
numerous storms are anticipated over the central Blue mountains
and areas east. More wet than dry storms are anticipated across
eastern Oregon capable of wetting rains (greater than 80%). High-
end amounts approaching or exceeding 1 inch are possible (20-40
percent confidence).
* AFFECTED AREA...Fire Weather Zones 644 Central Blue Mountains
and 645 Wallowa District.
* IMPACTS...Thunderstorms will be capable of producing frequent
cloud-to-ground lightning and erratic, gusty outflow winds.
This combination will promote conditions conducive to new fire
starts and rapid fire spread for new and existing fires.
* THUNDERSTORMS...Abundant lightning with frequent cloud-to-
ground lightning strikes.
* OUTFLOW WINDS...Gusty winds up to 45 mph.
...ISOLATED TO WIDELY SCATTERED HIGH-BASED STORMS LATE TONIGHT
AND THURSDAY IN OREGON ZONES 611, 640, and 642...
...SCATTERED TO NUMEROUS STORMS THURSDAY AFTERNOON AND EVENING
ACROSS OREGON ZONES 644 and 645...
.Isolated to widely scattered high-based thunderstorms, capable
of producing abundant lightning, are anticipated to develop or
move into central Oregon late tonight. A low chance of wetting
rains (less than 50 percent) is associated with these storms. A
lull in thunderstorm potential then exists during the early to
late morning.
Another round of thunderstorms with greater coverage is then
forecast Thursday afternoon and evening stretching from central
OR through the Wallowas. While isolated to widely scattered storms
are more likely than not across central Oregon, scattered to
numerous storms are anticipated over the central Blue mountains
and areas east. More wet than dry storms are anticipated across
eastern Oregon capable of wetting rains (greater than 80%). High-
end amounts approaching or exceeding 1 inch are possible (20-40
percent confidence).
* AFFECTED AREA...Fire Weather Zones 611 Deschutes National
Forest -minus Sisters Ranger District, 640 Central Mountains
of Oregon and 642 Southern Blue and Strawberry Mountains.
* IMPACTS...Thunderstorms will be capable of producing frequent
cloud-to-ground lightning and erratic, gusty outflow winds.
This combination will promote conditions conducive to new fire
starts and rapid fire spread for new and existing fires.
* THUNDERSTORMS...Abundant lightning with frequent cloud-to-
ground lightning strikes.
* OUTFLOW WINDS...Gusty winds up to 45 mph.
At 810 PM PDT, Doppler radar was tracking a strong thunderstorm near
Antler Campground And Trailhead, or 47 miles east of Crater Lake,
moving north at 25 mph.
HAZARD...Winds in excess of 30 mph and nickel 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.
Locations impacted include...
Antler Campground And Trailhead, Silver Creek Marsh Campground, and
Thompson Reservoir Campground.
...ISOLATED TO WIDELY SCATTERED HIGH-BASED STORMS LATE TONIGHT
AND TOMORROW IN OREGON ZONES 611, 640, and 642...
...SCATTERED TO NUMEROUS STORMS TOMORROW AFTERNOON AND EVENING
ACROSS OREGON ZONES 644 and 645...
.Isolated to widely scattered high-based thunderstorms, capable
of producing abundant lightning, are anticipated to develop or
move into central Oregon late tonight. A low chance of wetting
rains (less than 50 percent) is associated with these storms. A
lull in thunderstorm potential then exists during the early to
late morning.
Another round of thunderstorms with greater coverage is then
forecast tomorrow afternoon and evening stretching from central
OR through the Wallowas. While isolated to widely scattered storms
are more likely than not across central Oregon, scattered to
numerous storms are anticipated over the central Blue mountains
and areas east. More wet than dry storms are anticipated across
eastern Oregon capable of wetting rains (greater than 80%). High-
end amounts approaching or exceeding 1 inch are possible (20-40
percent confidence).
The National Weather Service in Pendleton has issued a Red Flag
Warning for abundant lightning, which is in effect from 11 AM to
11 PM PDT Thursday.
* AFFECTED AREA...Fire Weather Zones 644 Central Blue Mountains
and 645 Wallowa District.
* IMPACTS...Thunderstorms will be capable of producing frequent
cloud-to-ground lightning and erratic, gusty outflow winds.
This combination will promote conditions conducive to new fire
starts and rapid fire spread for new and existing fires.
* THUNDERSTORMS...Abundant lightning with frequent cloud-to-
ground lightning strikes.
* OUTFLOW WINDS...Gusty winds up to 45 mph.
...ISOLATED TO WIDELY SCATTERED HIGH-BASED STORMS LATE TONIGHT
AND TOMORROW IN OREGON ZONES 611, 640, and 642...
...SCATTERED TO NUMEROUS STORMS TOMORROW AFTERNOON AND EVENING
ACROSS OREGON ZONES 644 and 645...
.Isolated to widely scattered high-based thunderstorms, capable
of producing abundant lightning, are anticipated to develop or
move into central Oregon late tonight. A low chance of wetting
rains (less than 50 percent) is associated with these storms. A
lull in thunderstorm potential then exists during the early to
late morning.
Another round of thunderstorms with greater coverage is then
forecast tomorrow afternoon and evening stretching from central
OR through the Wallowas. While isolated to widely scattered storms
are more likely than not across central Oregon, scattered to
numerous storms are anticipated over the central Blue mountains
and areas east. More wet than dry storms are anticipated across
eastern Oregon capable of wetting rains (greater than 80%). High-
end amounts approaching or exceeding 1 inch are possible (20-40
percent confidence).
The National Weather Service in Pendleton has issued a Red Flag
Warning for abundant lightning, which is in effect from 11 PM
this evening to 11 PM PDT Thursday. The Fire Weather Watch is no
longer in effect.
* AFFECTED AREA...Fire Weather Zones 611 Deschutes National
Forest -minus Sisters Ranger District, 640 Central Mountains
of Oregon and 642 Southern Blue and Strawberry Mountains.
* IMPACTS...Thunderstorms will be capable of producing frequent
cloud-to-ground lightning and erratic, gusty outflow winds.
This combination will promote conditions conducive to new fire
starts and rapid fire spread for new and existing fires.
* THUNDERSTORMS...Abundant lightning with frequent cloud-to-
ground lightning strikes.
* OUTFLOW WINDS...Gusty winds up to 45 mph.
The Washington State Department of Ecology has issued an Air Quality
Alert...IN EFFECT UNTIL 5 PM PDT THURSDAY.
A Smoke Air Quality Alert has been issued. Wildfires burning in the
region combined with forecasted conditions will cause air quality to
reach unhealthy levels.
Pollutants in smoke can cause burning eyes...runny nose...aggravate
heart and lung diseases...and aggravate other serious health
problems. Limit outdoor activities and keep children indoors if it
is smoky. Please follow medical advice if you have a heart or lung
condition.
Information about air quality is on the Washington Department of
Ecology Web site at http://www.ecy.wa.gov/air.html or call 360-407-
6000.
Oregon Department of Environmental Quality has issued an Air Quality
Advisory...IN EFFECT UNTIL 3 PM PDT FRIDAY.
A Smoke Air Quality Advisory has been issued. Wildfires burning in
the region combined with forecasted conditions will cause air
quality to reach unhealthy levels.
Pollutants in smoke can cause burning eyes...runny nose...aggravate
heart and lung diseases...and aggravate other serious health
problems. Limit outdoor activities and keep children indoors if it
is smoky. Please follow medical advice if you have a heart or lung
condition.
For additional information...please visit the Web site at
http://www.oregon.gov/DEQ