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NZUS99 KBOI 230418
TXTSFD
IDAHO STATE FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
918 PM MST THU JAN 22 2026
A DRY COLD FRONT WILL SWEEP SOUTH ACROSS IDAHO ON FRIDAY, BRINGING BREEZY
NORTHERLY WINDS THAT ARE EXPECTED TO SCOUR OUT PERSISTENT VALLEY INVERSIONS AND
LOW CLOUDS. WHILE THIS SYSTEM LACKS SIGNIFICANT MOISTURE, ISOLATED LIGHT SNOW
SHOWERS ARE POSSIBLE ALONG THE CONTINENTAL DIVIDE AND EASTERN HIGHLANDS. THE
PRIMARY IMPACT WILL BE A SHIFT TO COLDER TEMPERATURES FOR THE WEEKEND, WITH
SOME NORTHERN VALLEYS SEEING THEIR COLDEST READINGS OF THE WINTER. HIGH
PRESSURE REBUILDS SUNDAY INTO MONDAY, LIKELY RETURNING STABLE CONDITIONS AND
AIR STAGNATION CONCERNS TO VALLEY LOCATIONS. BY TUESDAY AND WEDNESDAY, A WEAK
PACIFIC SYSTEM APPROACHES, INTRODUCING A SLIGHT CHANCE OF LIGHT MOUNTAIN SNOW
AND VALLEY RAIN.
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