The Lane Regional Air Protection Agency has continued an Air Quality
Advisory, which is IN EFFECT UNTIL 9 PM PDT THURSDAY.
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 Thursday
evening.
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.lrapa.org
* AFFECTED AREA...In Oregon, Fire Weather Zone 688 Mt. Hood
National Forest Region.
* THUNDERSTORMS...A 15 to 20% chance of dry thunderstorms. Storms
may produce very little rainfall, increasing the risk of new
fire starts from dry lightning.
* OUTFLOW WINDS...Instantaneous gusts as high as 40 mph. Gusts at
these speeds can be observed tens of miles away from the core of
the thunderstorm.
* DRY AND UNSTABLE...Unstable conditions with elevated mixing
heights may promote pyroconvective activity over ongoing fires.
* IMPACTS...Conditions may be favorable for rapid fire spread
which may threaten life and property. Thunderstorm outflow
winds may result in unanticipated erratic fire spread. High
instability may result in fire growth. Frequent lightning and
critically dry fuels may result in new fire starts.
* AFFECTED AREA...In Oregon, Fire Weather Zone 689 Northern
Willamette National Forest and Fire Weather Zone 690 Southern
Willamette National Forest.
* THUNDERSTORMS...A 15 to 25% chance of dry thunderstorms. Storms
may produce very little rainfall, increasing the risk fo new
fire starts from dry lightning.
* OUTFLOW WINDS...Instantaneous gusts as high as 40 mph. Gusts at
these speeds can be observed tens of miles away from the core of
the thunderstorm.
* DRY AND UNSTABLE...Unstable conditions with elevated mixing
heights may promote pyroconvective activity over ongoing fires.
* IMPACTS...Conditions will be favorable for rapid fire spread
which may threaten life and property. Thunderstorm outflow
winds may result in unanticipated erratic fire spread. High
instability may result in fire growth. Frequent lightning and
critically dry fuels may result in new fire starts.
* WHAT...Afternoon high temperatures in the mid to upper 90s and
overnight low temperatures in the mid 60s to lower 70s expected.
* WHERE...Western and Central Columbia River Gorge and the Hood
River Valley.
* WHEN...Until 8 PM PDT Thursday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* AFFECTED AREA...In California, Fire weather zone 285. In
Oregon, Fire weather zones 617, 623, 624 and 625.
* THUNDERSTORMS...Scattered thunderstorms with abundant
lightningpossible. Storms may produce little or no rain, and
lightning strikes outside of precipitation cores are
possible, and may cause many new fire starts. Thunderstorms
are expected to continue overnight and through Wednesday
afternoon along and east of the Cascades.
* OUTFLOW WINDS...Gusts of 35 to 50 mph could travel outward up
to 25 miles from thunderstorm cores.
* ADDITIONAL DETAILS...In addition to thunderstorm potential,
conditions on Tuesday will be hot, dry, breezy, and unstable,
adding to the heightened fire weather concerns for the day.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
...RED FLAG WARNING ISSUED FOR ABUNDANT LIGHTNING THROUGH
WEDNESDAY EVENING FOR THE SOUTHERN DESCHUTES NATIONAL FOREST...
* AFFECTED AREA...Fire Weather Zone 705 Southern Deschutes
National Forest.
* TIMING...Until 8 PM PDT Wednesday.
* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
* THUNDERSTORMS...Isolated to scattered storms (confidence 25-
35%).
* OUTFLOW WINDS...Gusts as high as 40 mph.
* WHAT...Hot conditions with afternoon high temperatures of 92 to
102 degrees. This will pose a moderate to major risk of
heat-related illness.
* WHERE...John Day Basin, Grande Ronde Valley, and Wallowa County.
* WHEN...Until 8 PM PDT Thursday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* WHAT...Hot conditions with afternoon high temperatures of 85 to 95
degrees. This will pose a moderate to major risk of heat-related
illness.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...Until 8 PM PDT Thursday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* WHAT...Dangerously hot conditions with afternoon high temperatures
of 95 to 103 degrees expected. This will pose a major risk of
heat-related illness.
* WHERE...Portions of north central and northeast Oregon and
central, south central, and southeast Washington.
* WHEN...Until 8 PM PDT Thursday.
* IMPACTS...Heat-related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Daily high temperature records are at risk
for many cities in the warning area through Thursday.
At 517 PM PDT, Doppler radar was tracking a strong thunderstorm 7
miles northeast of Abert Rim Geology, or 32 miles north of Lakeview,
moving northwest at 30 mph.
HAZARD...Winds in excess of 30 mph and pea 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...
Abert Rim Geology.
The Lane Regional Air Protection Agency has issued an Air Quality
Advisory, which is IN EFFECT UNTIL 9 PM PDT THURSDAY.
An Air Quality Advisory for Smoke has been issued. Wildfires burning
in the region combined with forecasted conditions will cause air
quality to reach unhealthy levels at times through 9 PM PDT Thursday.
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.lrapa.org
...RED FLAG WARNING ISSUED FOR ABUNDANT LIGHTNING FOR TODAY AND
TOMORROW OVER SOUTHERN DESCHUTES NATIONAL FOREST...
The National Weather Service in Pendleton has issued a Red Flag
Warning for abundant lightning, which is in effect until 8 PM PDT
Wednesday.
* AFFECTED AREA...Fire Weather Zone 705 Southern Deschutes
National Forest.
* TIMING...Until 8 PM PDT Wednesday.
* IMPACTS...Thunderstorm outflow winds may result in unanticipated
erratic fire spread. Outdoor burning is not recommended.
* THUNDERSTORMS...Isolated to scattered storms (confidence
25-35%).
* OUTFLOW WINDS...Gust as high as 40 mph.
The National Weather Service in Portland has issued a Red Flag
Warning for thunderstorms, which is in effect from noon to 9 PM
PDT Wednesday. The Fire Weather Watch is no longer in effect.
* AFFECTED AREA...In Oregon, Fire Weather Zone 688 Mt. Hood
National Forest Region.
* THUNDERSTORMS...A 15 to 20% chance of dry thunderstorms. Storms
may produce very little rainfall, increasing the risk of new
fire starts from dry lightning.
* OUTFLOW WINDS...Instantaneous gusts as high as 40 mph. Gusts at
these speeds can be observed tens of miles away from the core of
the thunderstorm.
* DRY AND UNSTABLE...Unstable conditions with elevated mixing
heights may promote pyroconvective activity over ongoing fires.
* IMPACTS...Conditions may be favorable for rapid fire spread
which may threaten life and property. Thunderstorm outflow winds
may result in unanticipated erratic fire spread. High
instability may result in fire growth. Frequent lightning and
critically dry fuels may result in new fire starts.
* AFFECTED AREA...In Oregon, Fire Weather Zone 689 Northern
Willamette National Forest and Fire Weather Zone 690 Southern
Willamette National Forest.
* THUNDERSTORMS...A 20 to 30% chance of dry thunderstorms. Storms
may produce very little rainfall, increasing the risk of new
fire starts from dry lightning.
* OUTFLOW WINDS...Instantaneous gusts as high as 40 mph. Gusts at
these speeds can be observed tens of miles away from the core of
the thunderstorm.
* DRY AND UNSTABLE...Unstable conditions with elevated mixing
heights may promote pyroconvective activity over ongoing fires.
* IMPACTS...Conditions will be favorable for rapid fire spread
which may threaten life and property. Thunderstorm outflow
winds may result in unanticipated erratic fire spread. High
instability may result in fire growth. Frequent lightning and
critically dry fuels may result in new fire starts.
* WHAT...Dangerously hot conditions with temperatures up to 100
degrees expected. This will pose a major risk of heat-related
illness.
* WHERE...Portions of north central and northeast Oregon and
central, south central, and southeast Washington.
* WHEN...Until 8 PM PDT Thursday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Daily high temperature records are at risk
for many cities in the warning area Tuesday through Thursday.
* WHAT...Hot conditions with temperatures up to 97 degrees expected.
This will pose a moderate to major risk of heat-related illness.
* WHERE...In Oregon, Central Oregon, John Day Basin, Grande Ronde
Valley, and Northern Blue Mountains of Oregon. In Washington,
Lower Slopes of the Eastern Washington Cascades Crest and
Northwest Blue Mountains.
* WHEN...Until 8 PM PDT this evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
* WHAT...Afternoon high temperatures in the mid to upper 90s and
overnight low temperatures in the mid 60s to lower 70s expected.
* WHERE...Western and Central Columbia River Gorge and the Hood
River Valley.
* WHEN...Until 9 PM PDT Wednesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Increasing high clouds may limit high
temperatures on Wednesday compared to Tuesday, however
probabilities for high temperatures above 90 degrees on Wednesday
are high, ranging from 75-95%.
* AFFECTED AREA...In California, Fire weather zone 285. In
Oregon, Fire weather zones 617, 623, 624 and 625.
* THUNDERSTORMS...Scattered thunderstorms with abundant lightning
possible. Storms may produce little or no rain, and lightning
strikes outside of precipitation cores are possible, and may
cause many new fire starts. Thunderstorms are expected to
continue overnight and through Wednesday afternoon along and
east of the Cascades.
* OUTFLOW WINDS...Gusts of 35 to 50 mph could travel outward up
to 25 miles from thunderstorm cores.
* ADDITIONAL DETAILS...In addition to thunderstorm potential,
conditions on Tuesday will be hot, dry, breezy, and unstable,
adding to the heightened fire weather concerns for the day.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
* AFFECTED AREA...In California, Fire weather zones 280 and 281.
In Oregon, Fire weather zone 621.
* THUNDERSTORMS...Scattered thunderstorms with abundant
lightning possible. Storms may produce little or no rain, and
lightning strikes outside of precipitation cores are
possible, and may cause many new fire starts.
* OUTFLOW WINDS...Gusts of 35 to 50 mph could travel outward up
to 25 miles from thunderstorm cores.
* ADDITIONAL DETAILS...IN addition to thunderstorm potential,
conditions on Tuesday will be hot, dry, breezy, and unstable,
adding to the heightened fire weather concerns for the day.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
* AFFECTED AREA...In California, Fire weather zones 284 and 285.
In Oregon, Fire weather zones 617, 623, 624 and 625.
* THUNDERSTORMS...Scattered thunderstorms with abundant lightning
possible. Storms may produce little or no rain, and lightning
strikes outside of precipitation cores are possible, and may
cause many new fire starts. Thunderstorms are expected to
continue through the overnight hours along and east of the
Cascades.
* OUTFLOW WINDS...Gusts of 35 to 50 mph could travel outward up
to 25 miles from thunderstorm cores.
* ADDITIONAL DETAILS...In addition to thunderstorm potential,
conditions on Tuesday will be hot, dry, breezy, and unstable,
adding to the heightened fire weather concerns for the day.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
