...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.
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
...SCATTERED LIGHTNING EXPECTED TONIGHT THROUGH THURSDAY EVENING
IN OREGON FIRE WEATHER ZONES 636, 637, 646...
SCATTERED LIGHTNING EXPECTED THURSDAY AFTERNOON AND EVENING IN IDAHO
FIRE WEATHER ZONES 402 AND 403...
A low pressure system will bring scattered thunderstorms
beginning late tonight in southeast Oregon, including Burns and
Vail BLM, and spreading into east-central Oregon early Thursday
morning. A second round of thunderstorms is likely Thursday
afternoon and evening. Moisture levels will be slightly higher,
but abundant lightning will still accompany any thunderstorm.
Gusty and erratic outflow winds are also likely near any storm.
* Thunderstorms...Scattered
* Outflow Winds...Gusts up to 45 mph possible.
* Timing...From midnight MDT /11 PM PDT/ tonight to 10 PM MDT /9
PM PDT/ Thursday.
...SCATTERED LIGHTNING EXPECTED TONIGHT THROUGH THURSDAY EVENING
IN OREGON FIRE WEATHER ZONES 636, 637, 646...
SCATTERED LIGHTNING EXPECTED THURSDAY AFTERNOON AND EVENING IN IDAHO
FIRE WEATHER ZONES 402 AND 403...
A low pressure system will bring scattered thunderstorms
beginning late tonight in southeast Oregon, including Burns and
Vail BLM, and spreading into east-central Oregon early Thursday
morning. A second round of thunderstorms is likely Thursday
afternoon and evening. Moisture levels will be slightly higher,
but abundant lightning will still accompany any thunderstorm.
Gusty and erratic outflow winds are also likely near any storm.
The National Weather Service in Boise has issued a Red Flag
Warning for lightning, which is in effect from 6 AM to 9 PM PDT
Thursday.
* Thunderstorms...Scattered
* Outflow Winds...Gusts up to 45 mph possible.
* Timing...From 6 AM to 9 PM PDT Thursday.
...ISOLATED TO SCATTERED THUNDERSTORMS THIS EVENING AND
OVERNIGHT, THEN AGAIN THURSDAY AFTERNOON...
.Low pressure will move into the region late this afternoon and
overnight, providing sufficient trigger for thunderstorm
initiation. Isolated storms will initially start out over
portions of northern California later this afternoon, then move
northeastward and continue into the overnight hours. After a
relative lull early Thursday morning, another round of isolated
to scattered thunderstorms is expected across northern Klamath
and Lake Counties Thursday afternoon.
* 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...Isolated to scattered thunderstorms this
evening and overnight with a relative lull in thunderstorm
activity expected early Thursday morning. Another round of
isolated to scattered thunderstorms is expected Thursday
afternoon and evening, with the greatest coverage expected
north of a line from Chiloquin to Paisley. Despite potential
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
Oregon Department of Environmental Quality has issued an Air
Pollution Advisory...in effect until at least 3 PM PDT Friday.
The Oregon Department of Environmental Quality issued an air quality
advisory for Lake and northern Klamath counties due to wildfires
burning in the region. The DEQ also expects intermittent smoke in
eastern Douglas and Jackson County through this period due to smoke
from surrounding fires.
The wildfire smoke combined with forecast conditions will cause air
quality levels to fluctuate and could be at unhealthy levels.
Smoke levels can change rapidly depending on the weather and planned
burn operations. 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.
People can take the following precautions to protect their health:
- Follow local burn restrictions to prevent deteriorating air
quality.
- Avoid strenuous outdoor activity during periods of poor air quality.
- People with heart or lung problems and young children are
especially vulnerable. These people should stay indoors while smoke
levels are high.
- Use certified High Efficiency Particulate Air (HEPA) filters in
indoor heating, ventilation, cooling and air purification systems.
- Avoid using wood-burning stoves and other sources of indoor smoke
if possible.
For additional information...please visit the web site at
https://oregonsmoke.org
* WHAT...High concentration of smoke particulates from wildfire
smoke.
* WHERE...Northern half of 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.
...CORRECTED END TIME OF RFW...
...SCATTERED LIGHTNING EXPECTED
TONIGHT THROUGH THURSDAY EVENING IN OREGON FIRE WEATHER ZONES 636
AND 637...
A low pressure system will bring scattered thunderstorms
beginning late tonight in fire weather zones 636 and 637,
including Harney County and northern Malheur County Oregon.
Thunderstorm activity is expected to move out of the area by late
Thursday morning, with a second round of thunderstorms likely
Thursday afternoon and evening. Moisture levels will be slightly
higher, but abundant lightning will still accompany any
thunderstorm. Gusty and erratic outflow winds are also likely
near any storm.
* Thunderstorms...Scattered
* Outflow Winds...Gusts up to 45 mph possible.
* Timing...From midnight MDT /11 PM PDT/ tonight to 10 PM MDT /9
PM PDT/ Thursday.
...ISOLATED TO SCATTERED THUNDERSTORMS THIS EVENING AND OVERNIGHT,
THEN AGAIN THURSDAY AFTERNOON...
.Low pressure will move into the region late this afternoon and
overnight, providing sufficient trigger for thunderstorm
initiation. Isolated storms will initially start out over
portions of northern California late this afternoon, then move
northeastward and continue into the overnight hours. After a
relative lull early Thursday morning, another round of isolated to
scattered thunderstorms is expected across northern Klamath and
Lake Counties Thursday afternoon.
The National Weather Service in Medford has issued a Red Flag
Warning, which is in effect from 8 PM this evening to 11 PM PDT
Thursday.
* 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 of the Warner
Peak Fire.
* THUNDERSTORMS...Isolated to scattered thunderstorms this evening
and overnight with a relative lull in thunderstorm activity
expected early Thursday morning. Another round of isolated to
scattered thunderstorms is expected Thursday afternoon and
evening, with the greatest coverage expected north of a line
from Chiloquin to Paisley. Despite potential 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
...ISOLATED TO WIDELY SCATTERED HIGH-BASED SHOWERS AND
THUNDERSTORMS WEDNESDAY NIGHT AND THURSDAY MORNING...
.Isolated to widely scattered high-based showers and
thunderstorms, capable of producing abundant lightning, are
anticipated to develop across central Oregon Wednesday night into
Thursday morning. Their elevated nature will keep chances of
wetting rain low.
Another round of isolated to widely scattered thunderstorms is
forecast to develop during the day Thursday across the eastern
mountains of Oregon. These thunderstorms are expected to be
capable of producing wetting rain so will continue to hold off on
any watches or warnings.
* 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.
Oregon Department of Environmental Quality has issued an Air Quality
Advisory...IN EFFECT UNTIL 5 PM PDT WEDNESDAY.
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
...ISOLATED THUNDERSTORM CHANCES BEGIN WEDNESDAY NIGHT AND BECOME
SCATTERED THURSDAY AFTERNOON...
.A low pressure system will reach the west coast and remain in
the area through the work week. Isolated thunderstorm chances
begin Wednesday evening. These thunderstorms may be dry.
Thunderstorms may become scattered on Thursday, and these
thunderstorms may bring some rain.
* IMPACTS...Thunderstorms may create new fires. Any fires that
develop will likely spread rapidly. Outdoor burning is banned
during fire season.
* AFFECTED AREA...Most of Oregon Fire Zones 624 and 625 north of
Highway 140. This includes the Warner Peak Fire.
* THUNDERSTORMS...Isolated thunderstorms with LAL 2 possible
Wednesday evening and overnight. LAL 3 possible Thursday
afternoon and evening. Thursday looks to be the better
thunderstorm day.
* OUTFLOW WINDS...Quickly shifting winds to 50 mph possible.
* DETAILEDURL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
...ISOLATED TO WIDELY SCATTERED HIGH-BASED SHOWERS AND THUNDERSTORMS
WEDNESDAY NIGHT AND THURSDAY MORNING...
.Isolated to widely scattered high-based showers and thunderstorms,
capable of producing abundant lightning, are anticipated to
develop across central Oregon Wednesday night into Thursday
morning. Their elevated nature will keep chances of wetting rain
low.
Another round of isolated to widely scattered thunderstorms is
forecast to develop Thursday afternoon and evening across the Blue
Mountains and Cascades. These thunderstorms are expected to be
capable of producing wetting rain so no watch has been issued for
the afternoon.
The National Weather Service in Pendleton has issued a Fire
Weather Watch for abundant lightning, which is in effect from
Wednesday evening through Thursday morning.
* 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.