063
FXUS65 KPIH 311726
AFDPIH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
1126 AM MDT SAT MAY 31 2025
KEY MESSAGES
- SOME RECORD HIGH TEMPERATURES FOR THE DATE EXPECTED TODAY.
- COOLING TREND STARTS SUNDAY WITH CLOUD COVER AND A RISK OF
SHOWERS AND THUNDERSTORMS SUNDAY NIGHT.
- SUNDAY NIGHT THROUGH TUESDAY NIGHT WILL BE MUCH COOLER WITH
SOME LIGHT PRECIPITATION EXPECTED, INCLUDING THUNDERSTORMS.
SHORT TERM /THROUGH SUNDAY NIGHT/
ISSUED AT 122 AM MDT SAT MAY 31 2025
SHALLOW UPPER LEVEL RIDGE SLIDES EAST TODAY AND WEAK WESTERLY
FLOW ALOFT WILL MOVE INTO REGION. IT WILL BE VERY WARM TODAY
WITH VALLEY HIGHS IN THE MID 80S TO LOWER 90S. MOUNTAIN HIGHS IN
THE 70S TO LOWER 80S. NOT EXPECTING ANY PRECIPITATION TODAY.
LOWS TONIGHT IN THE 50S VALLEYS AND 40S MOUNTAINS. IT WILL BE
WARM AGAIN SUNDAY WITH HIGHS IN THE 70S MOUNTAINS AND 80S
VALLEYS. AN UPPER LEVEL TROF MOVES ON SHORE FROM THE PACIFIC
SUNDAY AND SOUTHWESTERLY FLOW COMBINED WITH INSTABILITY WILL
BRING SHOWERS AND THUNDERSTORMS BACK INTO THE FORECAST GRIDS
SUNDAY AFTERNOON AND SUNDAY NIGHT WITH THE BEST CHANCES IN THE
CENTRAL MOUNTAINS AND EASTERN MOUNTAINS. EXPECT AN INCREASE IN
WINDS WITH THE SYSTEM SUNDAY AS WELL WITH WIDESPREAD 10 TO 20
MPH SUSTAINED WINDS IN THE MAGIC VALLEY AND SNAKE RIVER PLAIN
INTO THE CENTRAL MOUNTAINS.
LONG TERM /MONDAY THROUGH FRIDAY/
ISSUED AT 122 AM MDT SAT MAY 31 2025
NEXT WEEK CONTINUES TO LOOK COOLER (KICKING OFF WITHIN 5 DEGREES OF
CLIMATOLOGICAL NORMALS FOR EARLY JUNE THROUGH WEDNESDAY, THEN SLOWLY
TRENDING WARMER WITH SOME 80S RETURNING FOR HIGH TEMPERATURES AT
LOWER ELEVATIONS THURSDAY ONWARD), AS WELL AS LESS IMPACTFUL IN
TERMS OF WIND AND PRECIPITATION. THE ENTIRE WEEK WILL BE DOMINATED
BY BROAD/LONGWAVE TROUGHING WITH A FEW EMBEDDED SHORTWAVE TROUGHS
PUSHING THROUGH, BUT THESE WILL LARGELY JUST SUPPORT CHANCES OF
ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS FOCUSED IN SOME OF
OUR MOUNTAINS AND ALONG THE WYOMING BORDER CORRIDOR. REGIONALLY THE
BEST CHANCE OF MORE WIDESPREAD SHOWERS AND THUNDERSTORMS WILL BE
TUESDAY AFTERNOON, ESPECIALLY ACROSS THE CENTRAL MOUNTAINS, EASTERN
HIGHLANDS, AND UPPER SNAKE PLAIN. OTHERWISE, MONDAY LOOKS A BIT
BREEZY IN THE EASTERN MAGIC VALLEY INTO THE RAFT RIVER REGION, AND
OVERALL QPF AMOUNTS THROUGHOUT THE WEEK APPEAR LIGHT.
AVIATION /18Z TAFS THROUGH 18Z SUNDAY/
ISSUED AT 1124 AM MDT SAT MAY 31 2025
QUIET, HOT WEATHER IS EXPECTED FOR THE REST OF SATURDAY AS HIGH
PRESSURE REMAINS OVER EASTERN IDAHO. WINDS WILL BE LIGHT TODAY WITH
MOSTLY CLEAR SKIES, SO VFR CONDITIONS ARE IN STORE FOR ALL SITES
TODAY. WE BEGIN TO SEE CHANGES ARRIVE ON SUNDAY AS A TROUGH MOVES
INTO EASTERN IDAHO WITH THE FIRST CHANGE BEING INCREASING WIND GUSTS
AT BYI TO AROUND 20 KTS BY 12Z AND BREEZY CONDITIONS FOR ALL SITES
BY THE AFTERNOON. THUNDERSTORM CHANCES WILL ALSO INCREASE BEGINNING
SUNDAY AFTERNOON AND SINCE IT WILL BE AFTER 18Z, NO PROB30/VCTS IN
THIS TAF ISSUANCE, BUT WATCH FOR IT IN SUBSEQUENT ONES.
FIRE WEATHER
ISSUED AT 122 AM MDT SAT MAY 31 2025
WILL HAVE A HOT AND DRY DAY TODAY WITH SOME MINIMUM HUMIDITY
BELOW 15 PERCENT IN ZONES 475 AND 476 AND 425 AND 427. WILL SEE
AN INCREASE IN WINDS SUNDAY WITH THUNDERSTORM DEVELOPMENT AS
WELL WITH MOST THUNDERSTORMS IN ZONES 475, 476 AND 411. OTHER
ZONES WILL SEE ISOLATED ACTIVITY THROUGH SUNDAY NIGHT. HUMIDITY
WILL RISE A BIT SUNDAY WITH MINIMUM IN THE 20 TO 30 PERCENT
RANGE. EXPECT MUCH COOLER TEMPERATURES MONDAY THROUGH WEDNESDAY
WITH AT LEAST ISOLATED SHOWERS AND THUNDERSTORMS. SUNDAY WILL BE
BREEZY IN ZONES 425 AND 419 WITH 10 TO 20 MPH SUSTAINED WINDS
WITH 20 TO 30 MPH GUSTS.
PIH WATCHES/WARNINGS/ADVISORIES
NONE.
SHORT TERM...GK
LONG TERM...KSMITH
AVIATION...AMM
FIRE WEATHER...GK
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