Expires:202312190600;Remove:202312190600;618294
WWUS75 KMSO 171429
NPWMSO

URGENT - WEATHER MESSAGE
National Weather Service Missoula MT
729 AM MST Sun Dec 17 2023


IDZ005>010-190600-
/O.CON.KMSO.AS.Y.0003.000000T0000Z-231219T0600Z/
Northern Clearwater Mountains-Southern Clearwater Mountains-
Orofino/Grangeville Region-Lower Hells Canyon/Salmon River Region-
Western Lemhi County-Eastern Lemhi County-
729 AM MST Sun Dec 17 2023 /629 AM PST Sun Dec 17 2023/

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST /10 PM 
PST/ MONDAY...

* WHAT...Stagnant conditions will trap pollutants, leading to 
  deteriorating air quality.

* WHERE...Lower Hells Canyon/Salmon River Region, 
  Orofino/Grangeville Region, Southern Clearwater Mountains, Eastern 
  Lemhi County, Western Lemhi County, and Northern Clearwater 
  Mountains.

* WHEN...Until 11 PM MST /10 PM PST/ Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

According to state air quality agencies, prolonged period 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.

&&

$$