...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.
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
...SCATTERED LIGHTNING EXPECTED MONDAY NIGHT THROUGH TUESDAY
EVENING IN OR 646 AND ID 400, 401, 402, AND 403...
.An upper level shortwave is moving through the area this morning through
this evening with favorable dynamics for convection. After the
scattered thunderstorms this morning, isolated thunderstorms are
expected until 2000Z where convection may become scattered again.
Some uncertainty exists about coverage with the afternoon storms,
but as lightning and outflow gusts are still expected we've
decided to keep the Red Flag Warning.
* Thunderstorms...Scattered.
* Outflow Winds...Gusts up to 50 mph possible.
* Timing...Until 9 PM MDT /8 PM PDT/ this evening.
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
Oregon Department of Environmental Quality has issued an Air
Pollution Advisory...in effect until at least 5 PM PDT Wednesday.
The Oregon Department of Environmental Quality issued an air quality
advisory for Lake, Klamath, eastern Douglas, and northern Jackson
counties due to wildfires burning in the region. The DEQ also expects
intermittent smoke in southern 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...Harney County.
* WHEN...UNTIL 2 PM PDT WEDNESDAY.
* 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.
...SCATTERED LIGHTNING EXPECTED MONDAY NIGHT THROUGH TUESDAY
EVENING IN OR 646 AND ID 400, 401, 402, AND 403...
.An upper level shortwave will move through the area Monday night
through Tuesday with favorable dynamics for nocturnal convection.
Storms and showers will begin developing to the southwest of the
Warning area and by the time they move in early Tuesday morning,
the terrain should provide enough lift for scattered thunderstorms
embedded in showers.
The National Weather Service in Boise has upgraded the Fire
Weather Watch to a Red Flag Warning for lightning, which is in
effect from midnight MDT /11 PM PDT/ tonight to 9 PM MDT /8 PM
PDT/ Tuesday.
* Thunderstorms...Scattered.
* Outflow Winds...Gusts up to 50 mph possible.
* Timing...From midnight MDT /11 PM PDT/ tonight to 9 PM MDT /8 PM
PDT/ Tuesday.
...SCATTERED LIGHTNING EXPECTED MONDAY NIGHT THROUGH TUESDAY
EVENING IN OR 646 AND ID 400, 401, 402, AND 403...
.An upper level shortwave will move through the area Monday night
through Tuesday with favorable dynamics for nocturnal convection.
Storms and showers will begin developing to the southwest of the
Warning area and by the time they move in early Tuesday morning,
the terrain should provide enough lift for scattered thunderstorms
embedded in showers.
The National Weather Service in Boise has issued a Red Flag
Warning for lightning, which is in effect from midnight MDT
/11 PM PDT/ tonight to 9 PM MDT /8 PM PDT/ Tuesday.
* Thunderstorms...Scattered.
* Outflow Winds...Gusts up to 50 mph possible.
* Timing...From midnight MDT /11 PM PDT/ tonight to 9 PM MDT /8
PM PDT/ Tuesday.
..AIR QUALITY ADVISORY IN EFFECT UNTIL 1 PM PDT MONDAY...
The Oregon Department of Environmental Quality and the Lane Regional
Air Protection Agency have continued an Air Quality Advisory, which
is in effect until 1 PM PDT Monday.
An Air Quality Advisory for smoke remains in effect. Wildfires
burning in the region combined with forecasted conditions will cause
air quality to reach unhealthy levels at times through at least 1 PM
PDT Monday.
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.
More information about air quality can be found at:
www.oregon.gov/DEQ
www.lrapa.org
..AIR QUALITY ADVISORY IN EFFECT UNTIL 1 PM PDT MONDAY...
The Oregon Department of Environmental Quality and the Lane Regional
Air Protection Agency have continued an Air Quality Advisory, which
is in effect until 1 PM PDT Monday.
An Air Quality Advisory for smoke remains in effect. Wildfires
burning in the region combined with forecasted conditions will cause
air quality to reach unhealthy levels at times through at least 1 PM
PDT Monday.
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.
More information about air quality can be found at:
www.oregon.gov/DEQ
www.lrapa.org
...SCATTERED LIGHTNING EXPECTED MONDAY NIGHT THROUGH TUESDAY
EVENING IN OR 646 AND ID 400, 401, 402, AND 403...
.An upper level shortwave will move through the area Monday night
through Tuesday with favorable dynamics for nocturnal convection.
Storms and showers will begin developing to the south of the Watch
area and by the time they move in early Tuesday morning, the
terrain should provide enough lift for scattered thunderstorms
embedded in showers.
The National Weather Service in Boise has issued a Fire Weather
Watch for lightning, which is in effect from late Monday night
through Tuesday afternoon.
* Thunderstorms...Scattered.
* Outflow Winds...Gusts to 40 mph possible.
* Timing...From late Monday night through Tuesday afternoon.
Jackson County Public Health has issued an air quality advisory for
Jackson County...in effect until at least 8 PM PDT Monday, August
12.
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
Oregon Department of Environmental Quality has issued an Air
Pollution Advisory...in effect until at least 3 PM PDT on Monday,
August 12.
The Oregon Department of Environmental Quality issued an air quality
advisory for Lake, Klamath, and central and eastern Douglas counties
due to wildfires burning in the region. The DEQ also expects
intermittent smoke in Josephine 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
..AIR QUALITY ADVISORY IN EFFECT UNTIL 1 PM PDT MONDAY...
The Oregon Department of Environmental Quality and the Lane Regional
Air Protection Agency have continued an Air Quality Advisory, which
is in effect until 1 PM PDT Monday.
An Air Quality Advisory for smoke remains in effect. Wildfires
burning in the region combined with forecasted conditions will cause
air quality to reach unhealthy levels at times through at least 1 PM
PDT Monday.
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.
More information about air quality can be found at:
www.oregon.gov/DEQ
www.lrapa.org
..AIR QUALITY ADVISORY IN EFFECT UNTIL 1 PM PDT MONDAY...
The Oregon Department of Environmental Quality and the Lane Regional
Air Protection Agency have continued an Air Quality Advisory, which
is in effect until 1 PM PDT Monday.
An Air Quality Advisory for smoke remains in effect. Wildfires
burning in the region combined with forecasted conditions will cause
air quality to reach unhealthy levels at times through at least 1 PM
PDT Monday.
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.
More information about air quality can be found at:
www.oregon.gov/DEQ
www.lrapa.org
