680
FXUS65 KPIH 251723
AFDPIH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
1123 AM MDT SAT JUL 25 2026
KEY MESSAGES
- DANGEROUS HEAT & EXPANDING ADVISORIES: A HEAT ADVISORY REMAINS
ACTIVE THROUGH SATURDAY ACROSS LOWER ELEVATIONS, WHERE
TEMPERATURES ARE REACHING THE MID-TO-UPPER 90S WITH ISOLATED
100°F READINGS POSSIBLE IN THE LOWER SNAKE PLAIN AND MAGIC
VALLEY.
- AFTERNOON SHOWERS & STORMS: PERSISTENT SOUTHWEST FLOW ALOFT
WILL TAP INTO PACIFIC MOISTURE, TRIGGERING ISOLATED TO
SCATTERED AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS
TODAY. STORMS WILL FAVOR A MIX OF WET AND DRY CHARACTERISTICS.
MANY RED FLAG WARNINGS ARE IN EFFECT FOR THE STORMS.
- PERSISTENT PATTERN NEXT WEEK: AN ANCHORED FOUR CORNERS RIDGE
WILL LOCK IN ABOVE-NORMAL HEAT THROUGH ALL OF NEXT WEEK,
KEEPING LOWER-ELEVATION HIGHS IN THE MID-TO-UPPER 90S AND
LIKELY NECESSITATING ADDITIONAL HEAT HEADLINES.
DISCUSSION
ISSUED AT 257 AM MDT SAT JUL 25 2026
SOUTHWEST FLOW ALOFT CONTINUES AND MAIN IMPACTS REMAIN EXTREME
HEAT WITH HEAT ADVISORIES IN PLACE FOR THE SNAKE PLAIN, EASTERN
MAGIC VALLEY AND SOUTHERN HILLS. WILL HAVE SCATTERED
THUNDERSTORMS AGAIN IN THE SOUTHERN HILLS AND SNAKE RIVER PLAIN
WITH STRONG THUNDERSTORM OUTFLOW WIND GUSTS EXPECTED. HIGH
TEMPERATURES AGAIN NEAR 100 IN LOW ELEVATIONS. THE HEAT REMAINS
SUNDAY WITH SOME DRYING EXPECTED. HAVE ONLY MINIMAL THUNDERSTORM
COVERAGE ON SUNDAY IN THE EASTERN MOUNTAINS. LONG TERM GRIDS
HAVE MINIMAL CONVECTION TUESDAY AND WEDNESDAY IN THE EASTERN
MOUNTAINS BUT COULD SEE A BIT MORE THAN WHAT CURRENT GRIDS HAVE
WITH MORE ACTIVITY POSSIBLY. TEMPERATURES REMAIN EXTREMELY HOT
THROUGH THE ENTIRETY OF NEXT WEEK. HIGH TEMPERATURES REMAIN IN
THE MID TO UPPER 90S IN LOWER ELEVATIONS WITH SOME TRIPLE DIGITS
POSSIBLE ON MANY DAYS. MOUNTAIN HIGHS IN THE 80S TO LOWER 90S.
SO WILL BE AN EXTENDED PERIOD OF EXTREMELY HOT CONDITIONS
CONTINUING THROUGH THE END OF JULY.
AVIATION /18Z TAFS THROUGH 18Z SUNDAY/
ISSUED AT 1121 AM MDT SAT JUL 25 2026
VFR CONDITIONS CONTINUE AGAIN TODAY AND TONIGHT AS ISOLATED TO
SCATTERED THUNDERSTORMS GET GOING THIS AFTERNOON. SUN IS THE ONLY
SITE THAT LOOKS TO REMAIN OUTSIDE OF TSRA ACTIVITY TODAY, BUT THERE
IS INCREASING POTENTIAL FOR SOME SHOWERY ACTIVITY AT SUN EARLY
SUNDAY MORNING. THIS AFTERNOON AND EVENING, IF A STORM PASSES
DIRECTLY OVER A TERMINAL, EXPECT DROPS IN VIS/CIGS TO AT LEAST MVFR
CONDITIONS, THOUGH WE DID BRIEFLY SEE SOME IFR CONDITIONS WITH A
STORM OR TWO YESTERDAY OVER PIH. WIND GUSTS OUTSIDE OF STORMS TODAY
WILL BE AROUND 20 TO 25 KTS AND EXPECT SIMILAR WIND GUSTS ON SUNDAY,
TOO. WINDS WITH STORMS WILL BE CAPABLE OF GUSTING TO 45 KTS, THOUGH
ONE OR TWO STRONGER STORMS COULD EVEN GUST CLOSER TO 50-55 KTS.
FIRE WEATHER
ISSUED AT 204 AM MDT SAT JUL 25 2026
MAIN ISSUE REMAINS THUNDERSTORMS TODAY WITH RED FLAG WARNINGS IN
EFFECT FOR ZONES 410, 413, AND 427 FOR SCATTERED COVERAGE. WILL
HAVE NEAR SCATTERED COVERAGE IN ZONES 425 AND 411 AS WELL WITH
ISOLATED COVERAGE IN 476. STRONG WIND GUSTS EXPECTED NEAR ANY
THUNDERSTORM OUTFLOW. VERY HOT TEMPERATURES REMAIN IN PLACE
TODAY. FORECAST SUNDAY THROUGH NEXT WEEK IS FOR CONTINUING VERY
HOT AND DRY CONDITIONS THROUGH THE PERIOD. NOT EXPECTING
SIGNIFICANT THUNDERSTORM COVERAGE GOING FORWARD BEYOND SUNDAY.
PIH WATCHES/WARNINGS/ADVISORIES
HEAT ADVISORY UNTIL 9 PM MDT SUNDAY FOR IDZ051>059.
RED FLAG WARNING UNTIL 9 PM MDT THIS EVENING FOR IDZ410-413-
427.
DISCUSSION...GK
AVIATION...AMM
FIRE WEATHER...GK
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