510
FXUS65 KPIH 300852
AFDPIH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
252 AM MDT FRI MAY 30 2025
KEY MESSAGES
- ABOVE NORMAL TEMPERATURES WILL CONTINUE THROUGH THE WEEKEND
WITH HIGHS IN THE 70S/80S/90S.
- NEAR RECORD TO RECORD WARMTH IS EXPECTED ON SATURDAY.
- CONDITIONS WILL REMAIN DRY THROUGH SUNDAY MORNING, AHEAD OF
OUR NEXT SYSTEM MOVING IN LATER IN THE DAY SUNDAY INTO
MONDAY, BRINGING COOLER TEMPERATURES AND ISOLATED TO SCATTERED
SHOWERS AND THUNDERSTORM FOR EARLY NEXT WEEK.
- COOLER AND UNSETTLED CONDITIONS WILL THEN CONTINUE THROUGH
WEDNESDAY, WITH DAILY SHOWER AND THUNDERSTORM CHANCES AS
HIGHS RETURN TO THE 60S/70S.
SHORT TERM /TODAY THROUGH SATURDAY NIGHT/
ISSUED AT 252 AM MDT FRI MAY 30 2025
EARLY MORNING SATELLITE IMAGERY SHOWS A SHORTWAVE TROUGH
WORKING EAST THROUGH MONTANA AS DRY CONDITIONS AND CLEAR SKIES
PREVAIL ACROSS EASTERN IDAHO. UNDER THE INCREASING INFLUENCE OF
HIGH PRESSURE INTO SATURDAY, ABOVE NORMAL TEMPERATURES, DRY
CONDITIONS, AND PLENTY OF SUNSHINE WILL CONTINUE WITH HIGHS IN
THE 70S/80S TODAY AND 80S/90S ON SATURDAY. THE START OF THE
WEEKEND WILL MARK THE WARMEST DAY SO FAR THIS YEAR (ABOUT 10-25
DEGREES ABOVE NORMAL FOR LATE MAY) AND THE FIRST 90 DEGREE DAY
FOR MANY LOCATIONS. OUR LAST 90 DEGREE DAY IN POCATELLO WAS
SEPTEMBER 28TH 2024, AND WE REACHED 90 DEGREES FOR THE FIRST
TIME LAST YEAR ON JUNE 7TH. ON AVERAGE, POCATELLO SEES ITS FIRST
90 DEGREE DAY ON JUNE 14TH MAKING THIS YEAR ABOUT TWO WEEKS
AHEAD OF THAT BUT FAR FROM THE RECORD EARLIEST OF MAY 11TH 1960.
NEAR RECORD TO RECORD WARMTH IS EXPECTED SATURDAY AFTERNOON AT
OUR FIVE OFFICIAL CLIMATE SITES IN OUR LATEST FORECAST.
OVERNIGHT LOWS WILL ALSO FITTINGLY BE ON THE MILD SIDE IN THE
40S/50S THIS MORNING AND SATURDAY MORNING, CLIMBING INTO THE
50S/60S FOR SUNDAY MORNING. UNDER HIGH PRESSURE, WINDS WILL
REMAIN LIGHT WITH AFTERNOON RELATIVE HUMIDITIES DROPPING TO THE
SINGLE DIGITS/TEENS/20S GIVEN A VERY DRY AIRMASS IN PLACE.
LONG TERM /SUNDAY THROUGH FRIDAY/
ISSUED AT 252 AM MDT FRI MAY 30 2025
MAIN THEME IN LONG TERM PERIOD WILL BE A SUBSTANTIAL COOLING
FROM CURRENT TEMPERATURES. WILL REMAIN VERY WARM ON SUNDAY WITH
HIGHS IN THE 70S TO LOWER 80S MOUNTAINS AND MID TO UPPER 80S IN
VALLEYS. SOUTHWESTERLY FLOW ALOFT WILL BRING IN SOME MOISTURE
BUT EACH MODEL RUN LOOKS DRIER WITH BEST CHANCES IN THE
MOUNTAINS. COLD FRONT WILL MOVE THROUGH SUNDAY AND WILL SEE THE
MUCH COOLER TEMPERATURES MONDAY WITH HIGHS BACK INTO THE 60S
MOUNTAINS AND 70S VALLEYS WITH GENERAL BREEZY CONDITIONS AND
WIDESPREAD SUSTAINED WINDS 10 TO 20 MPH. A CHANCE OF SHOWERS AND
THUNDERSTORMS REMAINS WITH HIGHEST CHANCE IN THE EASTERN
MOUNTAINS WHICH IS MOST LIKELY AREA TO SEE GREATER THAN 0.10
INCHES OF RAIN THROUGH NEXT WEEK. TUESDAY WILL BE THE COLDEST
DAY IN THE LONG TERM WITH HIGHS MAINLY IN THE 50S TO LOWER 60S
MOUNTAINS AND 60S TO AROUND 70 IN VALLEYS. EXPECT TO SEE A SOLID
WARMING TREND WEDNESDAY THROUGH FRIDAY WITH HIGHS WEDNESDAY
BACK INTO THE 70S VALLEYS THEN AROUND 80 BY THURSDAY AND LOW TO
MID 80S BY NEXT FRIDAY. EXPECT PRECIPITATION CHANCES TO DECREASE
WEDNESDAY THROUGH FRIDAY BUT HAVE AT LEAST A SLIGHT CHANCE
MAINLY IN THE MOUNTAINS THROUGH THE END OF NEXT WEEK. EXPECT
LIGHTER WINDS AFTER MONDAY THROUGH THE REMAINDER OF NEXT WEEK AS
WELL.
AVIATION /06Z TAFS THROUGH 06Z SATURDAY/
ISSUED AT 1024 PM MDT THU MAY 29 2025
SKIES ARE MOSTLY CLEAR THIS EVENING WITH VFR CONDITIONS EXPECTED
TO PREVAIL THROUGH THE PERIOD. WINDS WILL LIKELY BE 10 KTS OR
LESS AT ALL EAST IDAHO TERMINALS ALONG WITH CONTINUED MOSTLY
CLEAR SKIES. ONLY A FEW MID/HIGH LEVEL CLOUDS ARE EXPECTED
TOMORROW WITH PRECIPITATION CHANCES LOOKING EXTREMELY LOW.
FIRE WEATHER
ISSUED AT 252 AM MDT FRI MAY 30 2025
ABOVE NORMAL TEMPERATURES AND VERY DRY CONDITIONS WILL CONTINUE
THROUGH SATURDAY WITH HIGHS THROUGH THE WEEKEND IN THE
70S/80S/90S. TEMPERATURES WILL PEAK ON SATURDAY WITH RECORD
WARMTH EXPECTED. AFTERNOON MINIMUM RELATIVE HUMIDITIES THROUGH
SATURDAY WILL DROP TO THE SINGLE DIGITS/TEENS/20S EACH DAY GIVEN
A VERY DRY AIRMASS IN PLACE. OUR NEXT SYSTEM REMAINS ON TRACK
TO MOVE IN SUNDAY AFTERNOON AND EVENING INTO MONDAY, BRINGING IN
COOLER TEMPERATURES, SHOWER AND THUNDERSTORM CHANCES, AND GUSTY
WINDS. OUR LATEST FORECAST HAS TRENDED DRIER BUT TEMPERATURES
ARE STILL EXPECTED TO DROP ABOUT 20 DEGREES OR SO WITH HIGHS IN
THE 80S/90S ON SATURDAY AND SUNDAY DROPPING TO THE 60S/70S
MONDAY THROUGH WEDNESDAY. A SERIES OF SHORTWAVE TROUGHS MOVING
THROUGH ON TUESDAY AND WEDNESDAY WILL HELP KEEP DAILY ISOLATED
TO SCATTERED SHOWERS AND STORMS GOING EACH DAY AHEAD OF DRIER
CONDITIONS BUILDING IN WEDNESDAY INTO THURSDAY WEST TO EAST.
PIH WATCHES/WARNINGS/ADVISORIES
NONE.
SHORT TERM...MACKAY
LONG TERM...GK
AVIATION...MCKAUGHAN
FIRE WEATHER...MACKAY
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