607
WWUS75 KBOI 141216
NPWBOI
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOISE ID
516 AM MST SUN DEC 14 2025
IDZ012-ORZ064-141715-
/O.NEW.KBOI.FG.Y.0012.251214T1216Z-251214T1700Z/
/O.CON.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/
LOWER TREASURE VALLEY-OREGON LOWER TREASURE VALLEY-
INCLUDING THE CITIES OF NAMPA, ONTARIO, NYSSA, AND CALDWELL
516 AM MST SUN DEC 14 2025 /416 AM PST SUN DEC 14 2025/
...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM MST /9 AM PST/ THIS
MORNING...
* WHAT...DENSE FOG HAS BEEN OBSERVED THIS MORNING ALONG THE
INTERSTATE 84 CORRIDOR WITH VISIBILITY ONE QUARTER MILE OR LESS.
FOG WILL CONTINUE TO CREATE LOW VISIBILITY ALONG TRAVEL CORRIDORS
THIS MORNING.
* WHERE...LOWER TREASURE VALLEY ZONES.
* WHEN...FOR THE DENSE FOG ADVISORY, UNTIL 10 AM MST /9 AM PST/ THIS
MORNING.
* IMPACTS...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.
IDZ011-013-014-016-028-033-ORZ061>063-141715-
/O.CON.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/
WEST CENTRAL MOUNTAINS-BOISE MOUNTAINS-UPPER TREASURE VALLEY-
WESTERN MAGIC VALLEY-CAMAS PRAIRIE-UPPER WEISER RIVER-HARNEY
COUNTY-BAKER COUNTY-MALHEUR COUNTY-
INCLUDING THE CITIES OF CASCADE, ANDERSON DAM, CUPRUM, MCCALL,
CAMBRIDGE, OLA, CORRAL, HILL CITY, MESA, TWIN FALLS, NEW
PRINCETON, BIG CREEK, FAIRFIELD, PINE, SELBY, BOISE, CRANE,
COUNCIL, INDIAN VALLEY, GLENDALE, WARM LAKE, BLAINE, BURNS,
FRUITVALE, MALHEUR CITY, DIAMOND, SOLDIER, VENATOR, DUNNEAN,
BUCHANAN, BAKER, PRAIRIE, GOODRICH, AND BEAR
516 AM MST SUN DEC 14 2025 /416 AM PST SUN DEC 14 2025/
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST /4 AM
PST/ TUESDAY...
* 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
NORTHEAST AND SOUTHEAST OREGON.
* WHEN...UNTIL 5 AM MST /4 AM PST/ TUESDAY.
* 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.
SA
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