869
NZUS99 KBOI 301235
TXTSFD
IDAHO STATE FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
535 AM MST TUE DEC 30 2025
A RIDGE OF HIGH PRESSURE ALOFT, RESULTING IN AIR STAGNATION AND
INVERSION IN THE VALLEYS, WILL CONTINUE THROUGH FRIDAY NIGHT, THEN
IMPROVE SATURDAY, A PACIFIC LOW PRESSURE SYSTEM APPROACHING
CALIFORNIA WILL BEGIN VALLEY RAIN AND MOUNTAIN SNOW NEW YEARS DAY,
CONTINUING THROUGH TUESDAY, BUT HEAVIEST FRIDAY AND SATURDAY.
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