Oregon Department of Environmental Quality has issued an Air
Pollution Advisory...in effect until 5 PM PDT this afternoon.
Wildfires burning in the region 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. People 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.
DEQs color-coded Air Quality Index provides current air quality
conditions and ranks air quality as follows: Green is good. Yellow is
moderate. Orange is unhealthy for sensitive groups such as children,
the elderly, pregnant women and those with respiratory conditions.
Red is unhealthy for everyone. Purple is very unhealthy for all
groups. Maroon is hazardous.
For additional information...please visit the web site at
https://oregonsmoke.org
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING FOR STRONG, GUSTY WINDS AND LOW RH FOR FIRE
WEATHER ZONES 285 AND 625...
* IMPACTS...For today, 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. For Thursday,
combined strong winds and low relative humidity can lead to
rapid growth and spread of new and existing fires.
* AFFECTED AREA...For today, in California...Eastern fire weather
zone 285 and in Oregon...fire weather zone 625. For Thursday,
nearly all of fire weather zones 285 and 625.
* THUNDERSTORMS TODAY...Isolated to scattered thunderstorms with
very little precipitation in the afternoon and evening.
Lightning strikes outside of precipitation cores are possible.
Strong, gusty outflow winds of 50 to 60 mph are possible in any
of the stronger storms.
* THURSDAY WIND...Southwest 20 to 30 mph with gusts to 40 mph.
* THURSDAY MINIMUM HUMIDITY...10 to 15 percent.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
* IMPACTS...Combined strong winds and low relative humidity can
lead to rapid growth and spread of new and existing fires.
* AFFECTED AREA...In Oregon...Fire weather zone 624.
* WIND...Southwest 20 to 30 mph with gusts to 40 mph.
* MINIMUM HUMIDITY...10 to 15 percent.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING FOR STRONG, GUSTY WINDS AND LOW RH FOR FIRE
WEATHER ZONES 285 AND 625...
* IMPACTS...For today, 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. For Thursday,
combined strong winds and low relative humidity can lead to
rapid growth and spread of new and existing fires.
* AFFECTED AREA...For today, in California...Eastern fire weather
zone 285 and in Oregon...fire weather zone 625. For Thursday,
nearly all of fire weather zones 285 and 625.
* THUNDERSTORMS TODAY...Isolated to scattered thunderstorms with
very little precipitation in the afternoon and evening.
Lightning strikes outside of precipitation cores are possible.
Strong, gusty outflow winds of 50 to 60 mph are possible in any
of the stronger storms.
* THURSDAY WIND...Southwest 20 to 30 mph with gusts to 40 mph.
* THURSDAY MINIMUM HUMIDITY...10 to 15 percent.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS WEDNESDAY AFTERNOON
AND EVENING...
An offshore upper level trough will bring increasing instability
and moisture across the area. Thunderstorms will begin to develop
early in the afternoon on Wednesday across south central Oregon,
and move across eastern and northeastern Oregon as well as across
far southeastern Washington throughout the afternoon and evening.
Thunderstorms will be capable of strong outflows, small hail, and
abundant lightning.
* AFFECTED AREA...Fire Weather Zones 642 Southern Blue and
Strawberry Mountains and 645 Wallowa District.
* IMPACTS...Any lightning strikes combined with hot and dry
conditions could cause new fire starts.
* THUNDERSTORMS...Isolated to widely scattered. Lightning
activity level of 2 to 3.
* OUTFLOW WINDS...45 to 60 mph. Thunderstorm outflow winds may
result in erratic fire spread.
...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS WEDNESDAY AFTERNOON
AND EVENING...
An offshore upper level trough will bring increasing instability
and moisture across the area. Thunderstorms will begin to develop
early in the afternoon on Wednesday across south central Oregon,
and move across eastern and northeastern Oregon as well as across
far southeastern Washington throughout the afternoon and evening.
Thunderstorms will be capable of strong outflows, small hail, and
abundant lightning.
The National Weather Service in Pendleton has issued a Red Flag
Warning for abundant lightning, which is in effect from noon
today to 11 PM PDT this evening. The Fire Weather Watch is no
longer in effect.
* AFFECTED AREA...Fire Weather Zones 643 Northern Blue Mountains
of Oregon and 644 Central Blue Mountains.
* IMPACTS...Any lightning strikes combined with hot and dry
conditions could cause new fire starts.
* THUNDERSTORMS...Isolated to widely scattered. Lightning
activity level of 2 to 3.
* OUTFLOW WINDS...40 to 50 mph. Thunderstorm outflow winds may
result in erratic fire spread.
* WHAT...Flash flooding and debris flows caused by excessive
rainfall continue to be possible over the Falls, Cow Valley,
Durkee burn scar.
* WHERE...Portions of northeast and southeast Oregon, including the
following areas, in northeast Oregon, Baker County. In southeast
Oregon, Harney County, Malheur County and Oregon Lower Treasure
Valley.
* WHEN...From 1 PM PDT /2 PM MDT/ this afternoon through this
evening.
* IMPACTS...Heavy rainfall over the Falls, Cow Valley, Durkee burn
scar is expected up to and during the period of the watch.
Residents near the Falls, Cow Valley, Durkee burn scar should
prepare for potential flooding impacts. Be sure to stay up to date
with information from local authorities. 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
thunderstorms capable of producing heavy rainfall over the
burn scars.
- http://www.weather.gov/safety/flood
* WHAT...Temperatures up to 100.
* WHERE...Portions of south central and southwest Idaho and
northeast and southeast Oregon.
* WHEN...Until 9 PM MDT /8 PM PDT/ this evening.
* IMPACTS...Hot temperatures may cause heat illnesses to occur.
* WHAT...Dangerously hot conditions with temperatures up to 104.
* WHERE...Portions of southwest and west central Idaho and
southeast Oregon.
* WHEN...Until 9 PM MDT /8 PM PDT/ this evening.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
At 1059 PM PDT, Doppler radar was tracking a strong thunderstorm near
Westfall, or 42 miles west of Ontario, moving northeast at 30 mph.
HAZARD...Wind gusts up to 40-50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
This strong thunderstorm will be near...
Buckbrush Poison Butte around 1210 AM MDT.
Jamieson around 1240 AM MDT.
...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS WEDNESDAY AFTERNOON
AND EVENING...
An offshore upper level trough will bring increasing instability
and moisture across the area. Thunderstorms will begin to develop
early in the afternoon on Wednesday across south central Oregon,
and move across eastern and northeastern Oregon as well as across
far southeastern Washington throughout the afternoon and evening.
Thunderstorms will be capable of strong outflows, small hail, and
abundant lightning.
* AFFECTED AREA...Fire Weather Zones 642 Southern Blue and
Strawberry Mountains and 645 Wallowa District.
* IMPACTS...Any lightning strikes combined with hot and dry
conditions could cause new fire starts.
* THUNDERSTORMS...Isolated to widely scattered. Lightning
activity level of 2 to 3.
* OUTFLOW WINDS...45 to 60 mph. Thunderstorm outflow winds may
result in erratic fire spread.
...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS WEDNESDAY AFTERNOON
AND EVENING...
An offshore upper level trough will bring increasing instability
and moisture across the area. Thunderstorms will begin to develop
early in the afternoon on Wednesday across south central Oregon,
and move across eastern and northeastern Oregon as well as across
far southeastern Washington throughout the afternoon and evening.
Thunderstorms will be capable of strong outflows, small hail, and
abundant lightning.
* AFFECTED AREA...Fire Weather Zones 643 Northern Blue Mountains
of Oregon and 644 Central Blue Mountains.
* IMPACTS...Any lightning strikes combined with hot and dry
conditions could cause new fire starts.
* THUNDERSTORMS...Isolated to widely scattered. Lightning
activity level of 2 to 3.
* OUTFLOW WINDS...40 to 50 mph. Thunderstorm outflow winds may
result in erratic fire spread.
...RED FLAG WARNING FOR WEDNESDAY AFT/EVE FOR LIGHTNING...
.A cold front, along with plenty of moisture and upper level
energy, will help initiate scattered to numerous thunderstorms
Wednesday afternoon and evening across the entire area. Wind
gusts 50-70 mph are possible with thunderstorms. Winds across
southeast Oregon will become moderate (15-25 mph with gusts 30-
40 mph) from late afternoon into the evening, adding to the
concern. Storms will have wet cores with wetting rain likely, but
most areas will see lower amounts. Debris flows may occur on
fresh burn scars.
* Thunderstorms...Scattered to numerous.
* Outflow Winds...50-70 mph possible.
* Timing...From noon MDT /11 AM PDT/ Wednesday to midnight MDT
/11 PM PDT/ Wednesday night.
* WHAT...Temperatures up to 101.
* WHERE...Portions of south central and southwest Idaho and
northeast and southeast Oregon.
* WHEN...Until 9 PM MDT /8 PM PDT/ Wednesday.
* IMPACTS...Hot temperatures may cause heat illnesses to occur.
* WHAT...Dangerously hot conditions with temperatures up to 105.
* WHERE...Portions of southwest and west central Idaho and
southeast Oregon.
* WHEN...Until 9 PM MDT /8 PM PDT/ Wednesday.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
The National Weather Service in Medford has issued a Fire Weather
Watch, which is in effect from Thursday afternoon through
Thursday evening.
* IMPACTS...For Wednesday, 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. For
Thursday, combined strong winds and low relative humidity can
lead to rapid growth and spread of new and existing fires.
* AFFECTED AREA...For Wednesday, in California...Eastern fire
weather zone 285 and in Oregon...fire weather zone 625. For
Thursday, nearly all of fire weather zones 285 and 625.
* WEDNESDAY THUNDERSTORMS...Isolated to scattered thunderstorms
with very little precipitation in the afternoon and evening.
Lightning strikes outside of precipitation cores are possible.
Strong, gusty outflow winds of 50 to 60 mph are possible in any
of the stronger storms.
* THURSDAY WIND...Southwest 20 to 30 mph with gusts to 40 mph.
* THURSDAY MINIMUM HUMIDITY...10 to 15 percent.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
The National Weather Service in Medford has issued a Fire Weather
Watch, which is in effect from Thursday afternoon through
Thursday evening.
* IMPACTS...Combined strong winds and low relative humidity can
lead to rapid growth and spread of new and existing fires.
* AFFECTED AREA...In Oregon...Fire weather zone 624.
* WIND...Southwest 20 to 30 mph with gusts to 40 mph.
* MINIMUM HUMIDITY...10 to 15 percent.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
The National Weather Service in Medford has issued a Fire Weather
Watch, which is in effect from Thursday afternoon through
Thursday evening.
* IMPACTS...For Wednesday, 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. For
Thursday, combined strong winds and low relative humidity can
lead to rapid growth and spread of new and existing fires.
* AFFECTED AREA...For Wednesday, in California...Eastern fire
weather zone 285 and in Oregon...fire weather zone 625. For
Thursday, nearly all of fire weather zones 285 and 625.
* WEDNESDAY THUNDERSTORMS...Isolated to scattered thunderstorms
with very little precipitation in the afternoon and evening.
Lightning strikes outside of precipitation cores are possible.
Strong, gusty outflow winds of 50 to 60 mph are possible in any
of the stronger storms.
* THURSDAY WIND...Southwest 20 to 30 mph with gusts to 40 mph.
* THURSDAY MINIMUM HUMIDITY...10 to 15 percent.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
* WHAT...Flash flooding and debris flows caused by excessive
rainfall are possible over the Falls, Cow Valley, Durkee burn
scars.
* WHERE...Fire burn scars in southeast Oregon, including Falls, Cow
Valley, and Durkee.
* WHEN...From Wednesday afternoon through Wednesday evening.
* IMPACTS...Heavy rainfall from thunderstorms over the Falls, Cow
Valley, Durkee burn scars is possible up to and during the period
of the watch. Residents near the Falls, Cow Valley, Durkee burn
scars should prepare for potential flooding impacts. Be sure to
stay up to date with information from local authorities. Heavy
rainfall from thunderstorms could trigger flash flooding of
low-lying areas, debris flows, and mud flows in and near recent
wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting
thunderstorms capable of producing heavy rainfall over the
burn scars.
- http://www.weather.gov/safety/flood
