999
WWUS75 KPIH 201631
NPWPIH

URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
931 AM MST Tue Jan 20 2026

IDZ054-059-221900-
/O.EXT.KPIH.AS.Y.0001.000000T0000Z-260122T1900Z/
Lower Snake River Plain-Franklin/Eastern Oneida Region-
Including the cities of Pocatello, Blackfoot, Shelley, Fort Hall,
Malad, Preston, American Falls, and Thatcher
931 AM MST Tue Jan 20 2026

...AIR STAGNATION ADVISORY NOW IN EFFECT UNTIL NOON MST THURSDAY...

* WHAT...Stagnant conditions will persist due to little vertical
  mixing and light winds. Degraded air quality is expected to
  continue as pollutants remained trapped near the surface.

* WHERE...Franklin/Eastern Oneida Region and Lower Snake River Plain.

* WHEN...Until noon MST Thursday.

* IMPACTS...Periods of air stagnation can lead to the buildup of
  pollutants near the surface.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If possible, reduce or eliminate activities that contribute to air
pollution, such as outdoor burning, and the use of residential wood
burning devices. Reduce vehicle trips and vehicle idling as much as
possible. Check with local agencies for possible restrictions in
your area.

&&

$$

Visit weather.gov/pocatello for more information.

McKaughan