762
FXUS65 KPIH 061721
AFDPIH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
1021 AM MST TUE JAN 6 2026
KEY MESSAGES
- WINTER WEATHER ADVISORIES CONTINUE FOR PORTIONS OF THE CENTRAL
IDAHO MOUNTAINS AND PORTIONS OF THE NORTHEASTERN HIGHLANDS IN
EASTERN IDAHO.
- ADDITIONAL SNOW, DOWN TO LOWER ELEVATIONS, ON TUESDAY NIGHT
THROUGH THURSDAY AFTERNOON.
- MILD TEMPERATURES CONTINUE UNTIL THURSDAY WHEN TEMPERATURES
TURN COLDER TOWARDS SEASONAL NORMALS.
SHORT TERM /THROUGH THURSDAY/
ISSUED AT 206 AM MST TUE JAN 6 2026
SNOW CONTINUES IN THE CENTRAL MOUNTAINS AND THE NORTHEASTERN PORTION
OF THE EASTERN HIGHLANDS WHERE OUR WINTER WEATHER ADVISORY CONTINUES
UNTIL 5 PM THIS EVENING. ADDITIONAL SNOWFALL IN THE STANLEY TO
GALENA SUMMIT AREA WILL RANGE FROM 3-6 INCHES, UP TO 2 INCHES IN THE
KETCHUM AREA, AND 2 TO 5 INCHES AROUND THE ISLAND PARK AREA. THE
WINTER WEATHER ADVISORY FOR THE CHALLIS AND HAILEY AREAS CAN LIKELY
BE CANCELLED EARLY THIS MORNING AS THE SNOW ENDS THERE. EVERYWHERE
ELSE, TODAY WILL BE A MOSTLY DRY DAY WITH HIGHS WARMING INTO THE MID
TO UPPER 40S IN THE EASTERN MAGIC VALLEY AND LOWER SNAKE RIVER
PLAIN. THE UPPER SNAKE RIVER PLAIN WILL MAKE IT INTO THE LOW TO MID
40S. TODAY WILL BE A BIT BREEZY, TOO, WITH GUSTS RANGING FROM 20 TO
35 MPH FOR MOST. AS WE REMAIN IN ZONAL FLOW ALOFT, ANOTHER SHORTWAVE
PASSES THROUGH THE AREA THIS EVENING/TONIGHT AS OUR PATTERN
CONTINUES. THIS WILL BRING ANOTHER ROUND OF SNOW TO PARTS OF THE
CENTRAL MOUNTAINS AND EASTERN HIGHLANDS AND WE WILL LIKELY NEED
ANOTHER ROUND OF WINTER WEATHER ADVISORIES.
A COLD FRONT SWEEPS THROUGH EASTERN IDAHO ON WEDNESDAY WHICH WILL
DROP OUR TEMPERATURES FROM 40S ON WEDNESDAY TO HIGHS IN THE LOW 30S
FOR THE SNAKE RIVER PLAIN AND EASTERN MAGIC VALLEY ON THURSDAY.
WHILE THERE IS A VERY SMALL CHANCE FOR A QUICK DUSTING OF SNOW DOWN
TO THE VALLEY FLOORS ON WEDNESDAY MORNING, THAT CHANCE INCREASES ON
THURSDAY MORNING, BUT ACCUMULATION STILL LOOKS MINIMAL WITH THE NBM
SHOWING A LESS THAN 10 PERCENT CHANCE OF AN INCH OF SNOW FOR
POCATELLO AND IDAHO FALLS AT THIS POINT.
LONG TERM /THURSDAY NIGHT THROUGH MONDAY/
ISSUED AT 1244 PM MST MON JAN 5 2026
ABOUT 40 PERCENT OF THE SOLUTIONS INVOLVE TWO CLUSTERS WHERE
PRECIPITATION MAY LINGER INTO THU NIGHT, WITH THE REMAINDER
ALREADY PUSHING THE PACIFIC COASTAL RIDGE BACK ONSHORE. BY SAT,
THE CLUSTERS ALL HAVE THIS UPPER LEVEL RIDGE SOLIDLY IN PLACE
OVER THE NORTHERN ROCKIES. THERE IS QUITE A VARIABILITY ON HOW
MUCH NORTHERLY FLOW WILL USHER IN COLD AIR FOR EASTERN IDAHO. A
SLIGHT MAJORITY SHOW ENOUGH NORTH FLOW THAT WE SHOULD GET COLD
(NOT A BITTER COLD, AT LEAST AT THIS POINT), BUT A SOLID
MINORITY KEEP A MORE WESTERLY AND THUS MORE MILD FLOW FOR THE
WEEKEND. BUT IT LOOKS COMPLETELY DRY WITH THE ONLY CONCERN NIGHT
AND MORNING FOG.
AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/
ISSUED AT 1018 AM MST TUE JAN 6 2026
MAIN IMPACT THIS AFTERNOON GUSTY WINDS WITH SUSTAINED 10 TO 20
KNOTS AT ALL SITES OTHER THAN SUN WITH GUSTS 20 TO 30 KNOTS.
WILL BE BREEZY OVERNIGHT AS WELL WITH WINDS AT PIH, IDA, BYI AND
DIJ STAYING ABOVE 10 KNOTS SUSTAINED WITH GUSTS OVER 20 KNOTS
CONTINUING. SECOND BATCH OF PRECIPITATION MOVES IN AFTER
02Z AND HAVE SNOW AT SUN AND DIJ WITH VISIBILITY DROPPING TO 2
TO 3 MILES AT BOTH LOCATIONS AND MVFR TO IFR CEILINGS. BEGAN
RAIN AT IDA, PIH AND BYI AFTER 17Z WEDNESDAY MORNING WITH MVFR
CEILINGS.
PIH WATCHES/WARNINGS/ADVISORIES
WINTER WEATHER ADVISORY UNTIL 5 PM MST THIS AFTERNOON FOR
IDZ066-070>075.
SHORT TERM...AMM
LONG TERM...MESSICK
AVIATION...GK
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