textproduct: Pocatello

KEY MESSAGES

- Showers and thunderstorms expected this afternoon and early evening with gusty winds and a mix of wet and dry thunderstorms

- Critical fire weather conditions expected this afternoon for fire weather zone 427 due to thunderstorms

- Drier weather returns for Thursday and beyond with hot conditions likely for the weekend. Many low elevations will reach 100 degrees by the weekend.

DISCUSSION

Issued at 1247 PM MDT Wed Jul 8 2026

Main impact this afternoon and evening will be isolated to scattered showers and thunderstorms. There is at least a slight chance everywhere but most likely spot is in the southern hills south of interstates 84 and 86. Will have much less activity on Thursday but a very slight chance remains. Will start to see the warming Thursday with highs in the 80s mountains and into the low 90s valleys. By Friday will have dry conditions with no thunderstorm threat. Low elevations will reach the mid 90s with 80s to lower 90s mountains. By Saturday and Sunday expecting many low elevations to reach 100 degrees. May see a bit of a wind increase Saturday into Sunday with some 20 to 30 mph wind gusts expected.

In the long term as the upper level strong ridge pushes east a bit there is the potential some monsoonal moisture may work north on the back side of the ridge by Tuesday and next Wednesday. So there is at least the potential for some increase in moisture and showers and thunderstorms returning.

AVIATION /18Z TAFS THROUGH 18Z THURSDAY/

Issued at 956 AM MDT Wed Jul 8 2026

The main impacts will be potential thunderstorms impacting all TAF sites EXCEPT DIJ, where it appears any lingering shower/storm potential will be minimal and/or not close enough to the airport. We have included PROB30 for BYI, SUN, PIH, and IDA for gusts over 35kts, with some potential for gusts exceeding 45-50kts. We should see showers and storms clear these TAF sites later this evening. VFR weather is expected although we might see a brief reduction during any storm that ends up producing heavier rainfall.

FIRE WEATHER

Issued at 157 PM MDT Wed Jul 8 2026

Red flag warning remains in effect for zone 427 until 8 pm with scattered thunderstorms expected. Will have at least isolated coverage all zones this evening. Expect much less thunderstorm coverage on Thursday with hot and dry conditions Saturday and Sunday. Expect a bit of a wind increase Saturday and Sunday as well and could have Red flag conditions for low humidity and wind gusts in zones 475,476, 410 and 411 mainly. In the long term could see a monsoonal moisture increase later next week mid week time frame which may increase chance of showers and thunderstorms again.

PIH WATCHES/WARNINGS/ADVISORIES

Red Flag Warning until 8 PM MDT this evening for IDZ427.