566
FXUS65 KBOI 160947
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
347 AM MDT FRI OCT 16 2026
KEY MESSAGES
- WARM AND DRY CONDITIONS THROUGH THE WEEKEND, WITH HIGH
TEMPERATURES 5 TO 10 DEGREES ABOVE NORMAL.
- ACTIVE PATTERN RETURNING COOLER CONDITIONS AND PRECIPITATION
CHANCES WEDNESDAY THROUGH THURSDAY.
SHORT TERM /THROUGH SUNDAY NIGHT/
THE UPPER-LEVEL RIDGE CENTERED OVER THE WESTERN CONUS WILL KEEP
TEMPERATURES WARMER THAN NORMAL TODAY WITH CLEAR SKIES. DRY
SURFACE LAYER CONDITIONS WITH WEAK WINDS WILL CONTRIBUTE TO
VAST TEMPERATURE DIFFERENCES FROM EARLY MORNING LOWS, AIDED BY
RADIATIONAL COOLING, TO PEAK HEATING DURING THE AFTERNOON. ON
SATURDAY, A WEAK UPPER-LEVEL SHORTWAVE TROUGH WILL MOVE INLAND
ACROSS THE PACIFIC NORTHWEST AND SOUTHERN CANADIAN PROVINCES. THIS
WILL ERODE THE WESTERN PERIPHERY OF THE RIDGE, COMBINING WITH A
WEAK UPPER-LEVEL LOW MOVING NORTH OUT OF BAJA CALIFORNIA TO PUT
THE AREA IN WEAK SOUTHWESTERLY FLOW ALOFT. WHILE MOISTURE
REMAINS SPARSE WITH THIS SYSTEM, THE PRESSURE GRADIENT WILL
TIGHTEN SLIGHTLY TO GENERATE LOCALIZED AFTERNOON BREEZES. SUNDAY
WILL SEE THIS WEAK SOUTHWESTERLY FLOW ALOFT CONTINUING.
LONG TERM /MONDAY THROUGH FRIDAY/
TEMPERATURES WILL REMAIN ABOUT 5 TO 10 DEGREES ABOVE NORMAL ON
MONDAY, HOWEVER THE PATTERN CHANGE WILL BE ACTIVELY UNDERWAY.
THROUGH THE REST OF THE WEEK, A HIGH AMPLITUDE TROUGH WILL
BECOME A CUT OFF LOW IN SOUTHERN CALIFORNIA AND LINGER IN THE
GREAT BASIN. AS THE TROUGH BUILDS ALONG THE WEST COAST MONDAY
EVENING, INCREASING CLOUDS AND BREEZY CONDITIONS IN SE OREGON
ARE EXPECTED. TEMPERATURES WILL COOL OFF TUESDAY AS A FRONT MOVE
THROUGH, COOLING TEMPERATURES DOWN TO NEAR-NORMAL; LOW-MID 60S
FOR THE AFTERNOON HIGH IN LOWER ELEVATIONS, LOW 50S FOR MOUNTAIN
VALLEYS. THE CLOUD COVER AND INCREASING CHANCE OF PRECIPITATION
TUESDAY EVENING THROUGH THURSDAY EVENING COULD HELP TO MODERATE
TEMPERATURES FURTHER, HOWEVER PRECIPITATION CONFIDENCE AT THIS
TIME IS LOW.
AVIATION /06Z FRIDAY THROUGH SATURDAY/
ISSUED 1154 PM MDT THU OCT 15 2026
VFR. AREAS OF SMOKE FROM PRESCRIBED BURNING NEAR KBNO AND KMYL
TOMORROW. BRIEF MVFR/IFR CONDITIONS FROM VALLEY FOG NEAR KBKE-KBNO
AGAIN TONIGHT. SURFACE WINDS: E-SE 5-10 KT. WINDS ALOFT AT 10KFT
MSL: SE-SW 10-20 KT.
KBOI...VFR. SURFACE WINDS SE 5-15 KT.
WEEKEND OUTLOOK...VFR WITH MOSTLY CLEAR SKIES ON SAT/SUN. AREAS OF
SMOKE FROM PRESCRIBED BURNS. SURFACE WINDS: E-SE 5-15 KT WITH GUSTS
20-25 KT MAINLY EAST OF KBOI ON SATURDAY, THEN S-SE 5-10 KT SUNDAY.
BOI WATCHES/WARNINGS/ADVISORIES
ID...NONE.
OR...NONE.
WWW.WEATHER.GOV/BOISE
INTERACT WITH US VIA SOCIAL MEDIA:
WWW.FACEBOOK.COM/NWSBOISE
WWW.X.COM/NWSBOISE
SHORT TERM...CH
LONG TERM....CH
AVIATION.....CH
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page