863
WWUS75 KBOI 022055
NPWBOI
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOISE ID
1255 PM PST MON FEB 2 2026
ORZ062-063-030500-
/O.EXA.KBOI.AS.Y.0002.000000T0000Z-260206T1800Z/
BAKER COUNTY-MALHEUR COUNTY-
INCLUDING THE CITIES OF MALHEUR CITY AND BAKER
1255 PM PST MON FEB 2 2026 /155 PM MST MON FEB 2 2026/
...AIR STAGNATION ADVISORY IN EFFECT UNTIL 10 AM PST /11 AM MST/
FRIDAY...
* WHAT...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...BAKER COUNTY AND MALHEUR COUNTY.
* WHEN...UNTIL 10 AM PST /11 AM MST/ FRIDAY.
* IMPACTS...POOR AIR QUALITY MAY CAUSE ISSUES FOR PEOPLE WITH
RESPIRATORY PROBLEMS.
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.
IDZ012-014-016-033-ORZ064-030500-
/O.CON.KBOI.AS.Y.0002.000000T0000Z-260206T1800Z/
LOWER TREASURE VALLEY-UPPER TREASURE VALLEY-WESTERN MAGIC VALLEY-
UPPER WEISER RIVER-OREGON LOWER TREASURE VALLEY-
INCLUDING THE CITIES OF CAMBRIDGE, GLENDALE, COUNCIL, CALDWELL,
GOODRICH, MESA, NYSSA, INDIAN VALLEY, NAMPA, FRUITVALE, ONTARIO,
TWIN FALLS, AND BOISE
155 PM MST MON FEB 2 2026 /1255 PM PST MON FEB 2 2026/
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST /10 AM
PST/ FRIDAY...
* WHAT...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...PORTIONS OF SOUTH CENTRAL AND SOUTHWEST IDAHO AND
SOUTHEAST OREGON.
* WHEN...UNTIL 11 AM MST /10 AM PST/ FRIDAY.
* IMPACTS...POOR AIR QUALITY MAY CAUSE ISSUES FOR PEOPLE WITH
RESPIRATORY PROBLEMS.
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.
JB
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