Malheur County battles dense fog and stagnant air
By Logan Bagett on Wednesday, December 4th, 2024 in More Top Stories Northeastern Oregon News
MALHEUR COUNTY — The National Weather Service out of Boise has issued advisories for Malheur County and surrounding areas for dense fog and stagnant air. A dense Fog Advisory is in place for the Ontario area until 2 p.m. local time on Thursday, along with an Air Stagnation Advisory for the whole county to remain in effect until Saturday evening.
Read the full National Weather Service advisories below:
(From the National Weather Service in Boise, ID)
URGENT – WEATHER MESSAGE
National Weather Service Boise ID
148 PM MST Tue Dec 3 2024
IDZ012-ORZ064-041400-
/O.EXT.KBOI.FG.Y.0015.000000T0000Z-241205T2100Z/
/O.CON.KBOI.AS.Y.0002.000000T0000Z-241208T0000Z/
Lower Treasure Valley ID-Oregon Lower Treasure Valley-
Including the cities of Nyssa, Caldwell, Nampa, and Ontario
148 PM MST Tue Dec 3 2024
…DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM MST THURSDAY…
…AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY
IN VALLEYS…
* WHAT…For the Dense Fog Advisory, visibility one quarter mile or
less in dense fog. For the Air Stagnation Advisory in valleys, an
extended period of stagnant air, with light winds and little
vertical mixing. This is due to an inversion near the surface that
will continue to trap pollutants.
* WHERE…Lower Treasure Valley Zones.
* WHEN…For the Dense Fog Advisory, until 2 PM MST Thursday. For
the Air Stagnation Advisory, until 5 PM MST Saturday.
* IMPACTS…Poor air quality may cause issues for people with
respiratory problems. Low visibility could make driving conditions
hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
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.
