FXUS65 KPIH 061811

AFDPIH



Area Forecast Discussion

National Weather Service Pocatello ID

1211 PM MDT Wed May 6 2026



.KEY MESSAGES...



- Critically low temperatures in the Snake River plain and

  eastern Magic Valley should be done for at least a week.



- Afternoon highs go above normal for the time of year on

  Thursday. by Mothers' Day, expecting lower to middle 80s.



- Slight chance of showers and thunderstorms this evening,

  Thursday afternoon and evening, and Friday afternoon and

  evening for the eastern highlands.



&&



.DISCUSSION...

Issued at 1142 AM MDT Wed May 6 2026



Tonight through Sat afternoon...high pressure will start to 

dominate the pattern during the near term forecast, but for the

next 36 hours weak impulses moving through the mean northwest

flow will trigger showers and thunderstorms in the extreme 

northern end of the forecast area. By Fri evening the risk of 

both is down considerably but not zero. By Sat an upper level

ridge of summer-like magnitude has pushed its axis into western

Idaho. 



This will allow temperatures to warm from day to day, then one 

impulse cools temperatures down slightly for Sat. Overnight lows

will stay warm enough to avoid freeze and frost in the eastern

Magic Valley and Snake River plain, and even warm slightly over

the period.



Finally, wind will be gusty and windy with gusts in excess of 30

mph for many locations this evening, then again Thu and Fri

afternoons and evenings. 



Sat night through next Wed...The upper level high strengthens

even more; afternoon temperatures in the lower elevations by

Mothers' Day will surpass 80 degrees. Warming will continue Mon,

then level off for Tue and cool slightly as this ridge appears

to start to break down--possibly. About 40 percent of the

clusters keep this ridge strong. In any case, the threat of

precipitation is near zero. Wind is gusty and moderate again on

Mon and Tue. 



&&



.AVIATION /18Z TAFS THROUGH 18Z THURSDAY/...

Issued at 1148 AM MDT Wed May 6 2026



VFR conditions expected across eastern Idaho through the period.

SKC/FEW CIGs will become more SCT to BKN later this evening and

overnight with some mid/high level clouds pushing into the

region. Light winds now increase to 10-15 kts in the next few

hours and continue into the overnight. Not expecting any 

precipitation. Winds increase closer to 20 kts by tomorrow

afternoon especially at KPIH and KBYI, slightly lower at KIDA, 

KDIJ and KSUN. 



&&



.PIH WATCHES/WARNINGS/ADVISORIES...

None.



&&



$$



DISCUSSION...Messick

AVIATION...McKaughan