Jefferson County, Oregon
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The National Weather Service's Watches, Warnings and Advisories by state counties include: Thunderstorm, Tornado, Flood, Flash Flood, Winter Storm, High Wind, Gale, Small Aircraft, High Surf, Marine, Heat, Air Quality, Ashfall, Hazardous, and Special Statements.
Weather Alerts: Jefferson County, Oregon
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Air Stagnation Advisory
ORZ041-044-505-507-120700-
/O.CON.KPDT.AS.Y.0003.000000T0000Z-171214T1800Z/
East Columbia River Gorge-Lower Columbia Basin of Oregon-
John Day Basin-Foothills of the Northern Blue Mountains of Oregon-
including the cities of Arlington, The Dalles, Boardman,
Hermiston, Ione, Dayville, John Day, Mitchell, Monument, Spray,
Pendleton, and Pilot Rock
1158 AM PST Mon Dec 11 2017

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
THURSDAY...

* AIR QUALITY...Moderate to unhealthy.

* TIMING...Stagnant air to persist for several more days.

* IMPACTS...Persons with respiratory issues should follow the
advice of their physician on how to deal with poor air
quality. Also outdoor burning may be limited, so please
consult with your local burn agencies.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Air Stagnation Advisory indicates that due to limited movement
of an air mass across the advisory area...pollution has the
potential to increase to dangerous levels. Persons with
respiratory illness should follow their physicians advice for
dealing with high levels of air pollution.

During periods of stagnant air...state air quality agencies
highly recommend that no outdoor burning occur and that
residential wood burning devices be limited as much as possible.
According to state air quality agencies...prolonged periods of
stagnant air can hold pollutants close to the ground...where
people live and breathe. Check with your local burn agency for
any current restrictions in your area.

&&

$$
Air Stagnation Advisory
ORZ509-120700-
/O.CON.KPDT.AS.Y.0003.000000T0000Z-171212T2000Z/
East Slopes of the Oregon Cascades-
including the cities of La Pine and Sunriver
1158 AM PST Mon Dec 11 2017

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST
TUESDAY...

* AIR QUALITY...Moderate to unhealthy.

* Elevation...Mainly below 4000 feet.

* IMPACTS...Persons with respiratory issues should follow the
advice of their physician on how to deal with poor air
quality. Also outdoor burning may be limited, so please
consult with your local burn agencies.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Air Stagnation Advisory indicates that due to limited movement
of an air mass across the advisory area...pollution has the
potential to increase to dangerous levels. Persons with
respiratory illness should follow their physicians advice for
dealing with high levels of air pollution

During periods of stagnant air...state air quality agencies
highly recommend that no outdoor burning occur and that
residential wood burning devices be limited as much as possible.
According to state air quality agencies...prolonged periods of
stagnant air can hold pollutants close to the ground...where
people live and breathe. Check with your local burn agency for
any current restrictions in your area.

&&

$$

Air Stagnation Advisory
ORZ511-120700-
/O.EXT.KPDT.ZF.Y.0013.000000T0000Z-171212T2000Z/
/O.CON.KPDT.AS.Y.0003.000000T0000Z-171212T2000Z/
Central Oregon-
including the cities of Bend, Madras, Prineville, and Redmond
1158 AM PST Mon Dec 11 2017

...FREEZING FOG ADVISORY NOW IN EFFECT UNTIL NOON PST TUESDAY...
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST
TUESDAY...

* AIR QUALITY...Moderate to unhealthy.

* VISIBILITIES...Less than a quarter of a mile at time.

* TIMING...Patchy freezing fog through this evening and then Areas
of freezing fog through Tuesday morning. Stagnant air to
persist for several more days.

* IMPACTS...Persons with respiratory issues should follow the
advice of their physician on how to deal with poor air
quality. Also outdoor burning may be limited, so please
consult with your local burn agencies. Motorists should be
prepared for sudden changes in visibility. Also roadways and
sidewalks may become slippery due to fog freezing on surfaces.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freezing Fog Advisory means visibilities will frequently be
reduced to less than one quarter mile. If driving...slow down...
use your headlights...and leave plenty of distance ahead of you.
Also...be alert for frost on bridge decks causing slippery roads.

An Air Stagnation Advisory indicates that due to limited movement
of an air mass across the advisory area...pollution has the
potential to increase to dangerous levels. Persons with
respiratory illness should follow their physicians advice for
dealing with high levels of air pollution.

During periods of stagnant air...state air quality agencies
highly recommend that no outdoor burning occur and that
residential wood burning devices be limited as much as possible.
According to state air quality agencies...prolonged periods of
stagnant air can hold pollutants close to the ground...where
people live and breathe. Check with your local burn agency for
any current restrictions in your area.

&&

$$

Freezing Fog Advisory
ORZ511-120700-
/O.EXT.KPDT.ZF.Y.0013.000000T0000Z-171212T2000Z/
/O.CON.KPDT.AS.Y.0003.000000T0000Z-171212T2000Z/
Central Oregon-
including the cities of Bend, Madras, Prineville, and Redmond
1158 AM PST Mon Dec 11 2017

...FREEZING FOG ADVISORY NOW IN EFFECT UNTIL NOON PST TUESDAY...
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST
TUESDAY...

* AIR QUALITY...Moderate to unhealthy.

* VISIBILITIES...Less than a quarter of a mile at time.

* TIMING...Patchy freezing fog through this evening and then Areas
of freezing fog through Tuesday morning. Stagnant air to
persist for several more days.

* IMPACTS...Persons with respiratory issues should follow the
advice of their physician on how to deal with poor air
quality. Also outdoor burning may be limited, so please
consult with your local burn agencies. Motorists should be
prepared for sudden changes in visibility. Also roadways and
sidewalks may become slippery due to fog freezing on surfaces.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freezing Fog Advisory means visibilities will frequently be
reduced to less than one quarter mile. If driving...slow down...
use your headlights...and leave plenty of distance ahead of you.
Also...be alert for frost on bridge decks causing slippery roads.

An Air Stagnation Advisory indicates that due to limited movement
of an air mass across the advisory area...pollution has the
potential to increase to dangerous levels. Persons with
respiratory illness should follow their physicians advice for
dealing with high levels of air pollution.

During periods of stagnant air...state air quality agencies
highly recommend that no outdoor burning occur and that
residential wood burning devices be limited as much as possible.
According to state air quality agencies...prolonged periods of
stagnant air can hold pollutants close to the ground...where
people live and breathe. Check with your local burn agency for
any current restrictions in your area.

&&

$$

National Weather Service

Providing "weather, water cycle, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy."
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