687
FXUS65 KPIH 270903
AFDPIH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
303 AM MDT MON APR 27 2026
KEY MESSAGES
- COLD OVERNIGHT LOWS CONTINUE INTO EARLY IN THE WORK WEEK. A
FREEZE WARNING IS IN EFFECT FOR THIS MORNING AND A FREEZE
WATCH IS IN EFFECT FOR TONIGHT.
- WEAK UPPER LEVEL TROUGHING OVER THE NORTHERN ROCKIES WILL
INTERACT WITH MOISTURE MOVING IN FROM THE SOUTH TO GENERATE
SHOWERS AND THUNDERSTORMS TODAY. TROUGHING CONTINUES THROUGH
AT LEAST WEDNESDAY NIGHT.
- AFTERNOON SLIGHT CHANCE RISK OF THUNDERSTORMS OCCURS EVERY DAY
THROUGH AT LEAST THURSDAY.
DISCUSSION
ISSUED AT 302 AM MDT MON APR 27 2026
A TROUGH OF LOW PRESSURE WILL REMAIN OVER THE REGION THROUGH
WEDNESDAY. WE'LL SEE ISOLATED TO SCATTERED SHOWERS WITH THE BEST
CHANCES IN THE AFTERNOON. TODAY THE BEST CHANCES EXTEND FROM
THEN CENTRAL MOUNTAINS THROUGH THE UPPER SNAKE RIVER PLAIN INTO
THE EASTERN HIGHLANDS. BUT ON TUESDAY AND WEDNESDAY, THE CHANCES
SHIFT MORE INTO THE MOUNTAINS AND HIGHLANDS AS THE TROUGH
WEAKENS. ADDITIONAL QPF LOOKS LIGHT, PERHAPS UP TO 0.25 INCHES
ON SOME OF THE RIDGE TOPS IN THE CENTRAL MOUNTAINS AND ALONG THE
MONTANA BORDER. THIS WOULD TRANSLATE TO A COUPLE INCHES OF
SNOW. THE BIGGEST IMPACT REMAINS THE COLD TEMPERATURES. MORNING
LOW TEMPERATURES WILL LIKELY REMAIN NEAR OR BELOW FREEZING INTO
TUESDAY MORNING AT LEAST AND PROBABLY EVEN WEDNESDAY MORNING.
THEN WE FALL INTO A GRAY AREA OF BORDERLINE FROST/FREEZE FOR THE
REST OF THE WEEK. IT REALLY ISN'T UNTIL SATURDAY MORNING WHEN
WE ARE REASONABLY "SAFE" FROM FROST/FREEZE IN OUR LOWER
ELEVATION COMMUNITIES. ON THE HIGH TEMPERATURES SIDE OF THINGS,
TEMPS WILL CLIMB INTO THE 60S BY MIDWEEK WITH 70S BY END WEEK.
THE WEEKEND LOOKS MAINLY DRY WITH ANOTHER LOW POTENTIALLY
BRINGING ANOTHER ROUND OF PRECIPITATION LATE WEEKEND INTO EARLY
NEXT WEEK. TEMPERATURES DO NOT LOOK QUITE AS COLD AS WE SEEN
WITH THIS LAST OUTBREAK. ALTHOUGH WE COULD STILL SEE ANOTHER
ROUND OF FROST/FREEZE ISSUES.
AVIATION /06Z TAFS THROUGH 06Z TUESDAY/
ISSUED AT 302 AM MDT MON APR 27 2026
DEALING WITH SOME MVFR CEILINGS WHICH COULD AFFECT IDA AND DIJ
THIS MORNING. THIS SHOULD BREAK UP THIS MORNING. EXPECT
SCATTERED SNOW SHOWERS THIS AFTERNOON POSSIBLY AFFECTING THESE
SAME SITES. AT SUN SNOW SHOWERS WILL BE AROUND AS WELL, BUT
PROBABLY NOT AFFECT THE SITE, ALTHOUGH ONLY ABOUT 80% CONFIDENT
IN THAT STATEMENT.
PIH WATCHES/WARNINGS/ADVISORIES
FREEZE WARNING UNTIL 10 AM MDT THIS MORNING FOR IDZ051>055.
FREEZE WATCH FROM LATE TONIGHT THROUGH TUESDAY MORNING FOR
IDZ051>055.
DISCUSSION...13
AVIATION...13
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