224
FXUS65 KPIH 251953
AFDPIH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
153 PM MDT FRI SEP 25 2026
KEY MESSAGES
- BREEZY TO WINDY INTO TONIGHT FOLLOWED BY COOLER WEATHER THIS
WEEKEND.
- ISOLATED SHOWERS AND STORMS SUNDAY AND MONDAY, FAVORING THE
EASTERN MOUNTAINS AND CENTRAL MOUNTAINS.
DISCUSSION
ISSUED AT 153 PM MDT FRI SEP 25 2026
SATELLITE IMAGERY SHOWS UPPER LOW CENTERED OVER WASHINGTON THIS
AFTERNOON, WITH DEEP S-SW FLOW IN PLACE OVER EAST IDAHO. BREEZY
WINDS STILL DEVELOPING ACROSS THE REGION TODAY, STRONGEST AT
HIGHER ELEVATIONS ACROSS THE CENTRAL MOUNTAINS, AND EXPECTED TO
CONTINUE TONIGHT AS THE ASSOCIATED FRONTAL BOUNDARY PASSES
THROUGH THE REGION. MOISTURE MAY SHIFTS CLOSE ENOUGH TO PROVIDE
LIGHT SHOWERS ACROSS PORTIONS OF THE FRANK CHURCH, BUT OTHERWISE
DRY CONDITIONS ARE EXPECTED TO CONTINUE. MUCH COOLER
TEMPERATURES ARRIVE BEHIND THE FRONT, WITH DAYTIME HIGHS IN THE
60S FOR MOST LOWER ELEVATION AREAS, THOUGH A FEW LOCATIONS ALONG
THE UTAH BORDER MAY STILL REACH INTO THE 70S. THE NEXT SYSTEM
MOVES INLAND SUNDAY, BRINGING MAINLY ISOLATED SHOWERS AND
THUNDERSTORMS TO HIGHER ELEVATION REGIONS SUNDAY AND MONDAY.
ENSEMBLE MEANS MAINTAIN SHALLOW HIGH PRESSURE ACROSS IDAHO
THROUGH MOST OF THE WEEK, ALLOWING TEMPERATURES TO REMAIN NEAR
TO SLIGHTLY BELOW NORMAL THROUGH THE WEEK, DESPITE A BRIEF
REBOUND SUNDAY. THERE IS POTENTIAL FOR BREAK DOWN OF THE HIGH BY
THE WEEKEND, AS THE ENSEMBLE MEANS BRING A TROUGH THROUGH THE
REGION FRIDAY INTO SATURDAY. THE OPERATIONAL GFS IS
SIGNIFICANTLY MORE PRONOUNCED WITH THIS FEATURE THAN THE
OPERATIONAL ECMWF.
AVIATION /18Z TAFS THROUGH 18Z SATURDAY/
ISSUED AT 1150 AM MDT FRI SEP 25 2026
EXPECT VFR CONDITIONS THROUGH THE PERIOD. WINDS INCREASE THIS
AFTERNOON AHEAD OF A DRY, COLD FRONT WITH 20 T0 25 KTS EXPECTED.
COLD FRONT PASSAGE WILL BE OVERNIGHT. CLOUDS LOOK TO BE MOSTLY
MID TO UPPER LEVEL. WINDS WILL BE MORE SUSTAINED OF 15 TO 20 KTS
OVERNIGHT BEFORE DROPPING OFF SLIGHTLY IN THE MORNING. WINDS
WILL PICK BACK UP SLIGHTLY TOMORROW BY LATE MORNING/EARLY
AFTERNOON WITH GUSTS OF 15 TO 25 KTS FOR ALL TAF SITES.
FIRE WEATHER
ISSUED AT 153 PM MDT FRI SEP 25 2026
THE MAIN IMPACT FOR THE NEXT SEVEN DAYS WILL BE STRONG WINDS TODAY.
GUSTS OF 30 TO 40 MPH WILL BE WIDESPREAD IN ZONES 475 AND 476 WITH
20 TO 30 MPH GUSTS WIDESPREAD IN MOST ALL OTHER ZONES. LOOK FOR
LINGERING 20 TO 30 MPH GUSTS SATURDAY, MAINLY IN ZONE 410 WITH MUCH
LIGHTER WINDS ELSEWHERE. LOOK FOR A CHANCE OF SHOWERS AND
THUNDERSTORMS SUNDAY AND MONDAY, MAINLY IN HIGHER ELEVATIONS. DRY
CONDITIONS WITH NON-SIGNIFICANT WINDS ARE EXPECTED NEXT TUESDAY
THROUGH NEXT FRIDAY. TODAY WILL BE THE WARMEST OF THE NEXT SEVEN
DAYS AND AROUND 10 DEGREES ABOVE AVERAGE, WITH LOW 80S EXPECTED FOR
VALLEYS FOR DAYTIME HIGHS. TEMPERATURES WILL SLIGHTLY ABOVE AVERAGE
THIS WEEKEND BEFORE DROPPING TO NEAR AVERAGE FOR THE MAJORITY OF
NEXT WEEK.
PIH WATCHES/WARNINGS/ADVISORIES
NONE.
DISCUSSION...DMH
AVIATION...TW
FIRE WEATHER...TW
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