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Alerts

Eastern OR
 Details for Eastern OR Dense Fog Advisory
 N. Marine OR
 Details for N. Marine OR Small Craft Advisory
 N. Coast OR
 Details for N. Coast OR Freezing Fog Advisory
 W. Valley
 Details for W. Valley Freezing Fog Advisory
 Central OR
 Details for Central OR Freezing Fog Advisory
 Eastern OR
 Details for Eastern OR Freezing Fog Advisory
 N. Coast OR
 Details for N. Coast OR Air Stagnation Advisory
 W. Valley
 Details for W. Valley Air Stagnation Advisory
 PDX Metro
 Details for PDX Metro Air Stagnation Advisory
 Southwest OR
 Details for Southwest OR Air Stagnation Advisory
 Central OR
 Details for Central OR Air Stagnation Advisory
 Eastern OR
 Details for Eastern OR Air Stagnation Advisory

Weather Alerts for Central OR

Issued by the National Weather Service

Freezing Fog Advisory  FREEZING FOG ADVISORY   Freezing Fog Advisory
CENTRAL OR
Areas Affected:
Foothills of the Southern Blue Mountains of Oregon - North Central Oregon
Effective: Wed, 12/4 10:45am Updated: Wed, 12/4 11:10am Urgency: Expected
Expires: Thu, 12/5 4:30am Severity:  Moderate  Certainty: Likely
 
Details: 
* WHAT...Visibility less than one quarter mile in freezing fog.
Although there will be some improvement in the visibility this
afternoon, dense freezing fog will return tonight.

* WHERE...Foothills of the Southern Blue Mountains of Oregon and
North Central Oregon.

* WHEN...Until 11 AM PST Thursday.

* IMPACTS...Low visibility and slick roads could make driving
conditions hazardous.

* ADDITIONAL DETAILS...Periods of light snow flurries or light
freezing drizzle may be observed as well.

Information: 
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.

Freezing Fog Advisory  FREEZING FOG ADVISORY   Freezing Fog Advisory
CENTRAL OR
Areas Affected:
Central Oregon
Effective: Wed, 12/4 10:45am Updated: Wed, 12/4 11:10am Urgency: Expected
Expires: Thu, 12/5 4:30am Severity:  Moderate  Certainty: Likely
 
Details: 
* WHAT...Visibility less than one quarter of a mile in freezing fog.
Although there will be some improvement in the visibility this
afternoon, dense freezing fog will return tonight.

* WHERE...Central Oregon.

* WHEN...Until 11 AM PST Thursday.

* IMPACTS...Low visibility and slick roads could make driving
conditions hazardous.

* ADDITIONAL DETAILS...Periods of light snow flurries or light
freezing drizzle may be observed as well.

Information: 
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.

Air Stagnation Advisory  AIR STAGNATION ADVISORY   Air Stagnation Advisory
CENTRAL OR
Areas Affected:
Central Douglas County - Eastern Curry County and Josephine County - Jackson County - Klamath Basin - Northern and Eastern Klamath County and Western Lake County - Central and Eastern Lake County
Effective: Tue, 12/3 11:23pm Updated: Wed, 12/4 11:10am Urgency: Expected
Expires: Fri, 12/6 4:00pm Severity:  Moderate  Certainty: Likely
 
Details: 
* WHAT...A ridge of high pressure will lead to a strong inversion
and stagnant air conditions near the surface that will continue to
trap pollutants. This could worsen air quality over time.

* WHERE...Valley locations across southern Oregon. West of the
Cascades, this includes the Umpqua, Illinois, Applegate, and Rogue
valleys. East of the Cascades, this includes Klamath Falls,
Sprague River, Chiloquin, Chemult, Silver Lake, Paisley, and
surrounding areas.

* WHEN...Until 4 PM PST Friday.

* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.

Information: 
Persons with respiratory illness should follow their physicians
advice for dealing with high levels of air pollution during periods
of stagnant air.