425
FXUS65 KBOI 120959
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
259 AM MST THU FEB 12 2026
SHORT TERM...TODAY THROUGH SATURDAY NIGHT
THE LARGE UPPER-
LEVEL LOW PRESSURE SYSTEM THAT BROUGHT PRECIPITATION TO THE AREA
YESTERDAY WILL MOVE SOUTH AND EAST OF THE AREA TODAY. LINGERING
MOISTURE AND INSTABILITY ALONG THE NORTHERN PERIPHERY OF THE LOW
WILL BE ENOUGH FOR A FEW SHOWERS, MAINLY THIS AFTERNOON, NEAR
THE NEVADA BORDER. REMAINING AREAS WILL SEE A MIX OF SUN AND
CLOUDS, WITH LOW CLOUDS TRAPPED IN THE SNAKE RIVER VALLEY AND
PORTIONS OF SOUTHEAST OREGON FOR MUCH OF THE DAY. POCKETS OF FOG
ARE EXPECTED TO DEVELOP IN THE LOWER VALLEYS BY EARLY MORNING. A
SHORT-LIVED RIDGE OF HIGH PRESSURE IS EXPECTED TONIGHT INTO
EARLY SATURDAY AS A DEEPENING PACIFIC TROUGH CHURNS OFF THE
COAST. SOUTHWESTERLY FLOW AND INCREASING SE SURFACE WINDS ARE
EXPECTED SATURDAY AHEAD OF THIS SYSTEM, WITH MOUNTAIN
PRECIPITATION BEGINNING LATE SATURDAY INTO SATURDAY NIGHT. SNOW
LEVELS ARE EXPECTED TO BE AROUND 5500 FEET SATURDAY NIGHT.
TEMPERATURES ARE FORECAST TO BE AROUND 5 DEGREES ABOVE NORMAL.
LONG TERM...SUNDAY THROUGH THURSDAY
CONTINUED PATTERN OF ACTIVE
WEATHER ON DECK. THE TREND OVER THE PAST FEW DAYS HAS BEEN PUSHING
THIS COMING OFFSHORE TROUGH TO LATER AND LATER INTO THE WEEK, WITH
THE MOST RECENT CLUSTER ANALYSIS KEEPING THE UPPER-LEVEL LOW OFF THE
CALIFORNIA COAST UNTIL LATE MONDAY. SUNDAY AND MONDAY TEMPERATURES
WILL RUN WARMER THAN NORMAL AS THIS PATTERN WILL PROVIDE WARM
SOUTHWESTERLY FLOW ALOFT. LATE MONDAY, CLUSTERS AND DETERMINISTIC
MODEL RUNS SHOW ANOTHER UPPER-LEVEL TROUGH MOVING SOUTH FROM THE
GULF OF ALASKA AND FINALLY KICKING THE UPPER-LEVEL LOW
EAST/NORTHEAST OVER OUR AREA. PRECIPITATION CHANCES GREATLY INCREASE
LATE MONDAY INTO TUESDAY AS A RESULT, AND STAY ELEVATED AS THE
SYSTEM CONTINUES TO LINGER. TEMPS COOL DOWN TO A FEW DEGREES BELOW
NORMAL BY WEDNESDAY, AND UNSETTLED CONDITIONS CONTINUE.
AVIATION
AREAS OF MVFR-IFR IN LOW STRATUS. IFR-VLIFR IN
PATCHY FOG/MIST DEVELOPING OVERNIGHT. MTN OBSCURATION. IMPROVEMENT
OF FOG LATE THU MORNING, BUT STRATUS LINGERING. A 5-10% CHANCE OF
RAIN/MIXED SHOWERS ACROSS SW IDAHO MTNS AND SE OREGON THURSDAY PM.
RETURN OF WIDESPREAD FOG/LOW STRATUS OVERNIGHT THURSDAY INTO FRIDAY
MORNING. SURFACE WINDS: VARIABLE UP TO 10 KT. WINDS ALOFT AT 10KFT
MSL: W TO NW 5-15 KT.
KBOI...MVFR-IFR IN LOW STRATUS AND MIST OVERNIGHT. STRATUS CEILINGS
LIFTING LATE THU MORNING, THEN ERODING THU AFTERNOON. LOW STRATUS
RETURNING OVERNIGHT THURSDAY INTO FRIDAY MORNING. SURFACE WINDS:
LIGHT AND VARIABLE.
WEEKEND OUTLOOK...VFR. HIGH CLOUDS WILL STREAM OVERHEAD, WITH SOME
SHOWERS POSSIBLE (30-60%) ALONG THE HIGHER TERRAIN OF EASTERN OREGON
AND THE WEST-CENTRAL IDAHO MOUNTAINS. MVFR-IFR CONDITIONS POSSIBLE
IN THE HIGHER TERRAIN FROM THESE SHOWERS, MIST, AND LOW STRATUS.
SURFACE WINDS: E-SE 5-12 KTS.
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...MC
LONG TERM....CH
AVIATION.....CH
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