textproduct: Pocatello

KEY MESSAGES

- Wind shift from north and east to south and west. Strong winds Tuesday afternoon and evening with wind advisories in effect for Arco Desert, Snake River Plain, Eastern Magic Valley and Shoshone/Lava Beds.

- Strong wind and very low afternoon humidity will combine to produce critical fire weather conditions for Tuesday and Wednesday.

- Hot conditions Tuesday with low elevation high temperatures near 90 degrees.

DISCUSSION

Issued at 106 PM MDT Mon Jun 15 2026

Quiet conditions continue this afternoon and overnight. Will start to see significant wind impacts Tuesday afternoon with wind advisories in effect for the Snake River Plain, Eastern Magic Valley, Arco Desert and Shoshone/Lava Beds. Wind speeds of 20 to 30 mph with gusts up to 50 mph expected in those locations in the advisory. Gusts of 30 mph will occur throughout the southeast Idaho area. High temperatures Tuesday mainly 80s to as high as lower 90s in valleys. It will remain windy Wednesday though not quite as windy as Tuesday with slightly cooler temperatures with highs in the 70s mountains and 80s valleys. Winds will die down Thursday and Friday with warm temperatures continuing with highs warming back to the 80s mountains and 80s to lower 90s valleys on Friday. The next chance for showers and thunderstorms will be over the weekend as a Pacific system may finally bring some moisture back to the region. Will see slightly cooler temperatures but still above seasonal normal over the weekend.

AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/

Issued at 451 PM MDT Mon Jun 15 2026

The only concern is increasing wind tomorrow across central and eastern Idaho. Gusts of 25-40kts will impact most TAF sites, strongest for PIH and IDA. We are expecting some switch tomorrow afternoon to at least an occasional (if not full switch) west-southwest wind at 15-25kts for SUN before the usual switch to northwest tomorrow evening.

FIRE WEATHER

Issued at 220 AM MDT Mon Jun 15 2026

Strong warming and drying over the next two days will plunge afternoon humidity below 10 percent for a wide area of low elevations. This will combine with a trough moving through MT that will push the southwest to west wind to near Wind Advisory levels. This appears to be an easy Red Flag condition, but only if fuels are receptive. This returns for Wed, then while the humidity remains very low, the wind decreases substantially. Showers and lightning may return for some areas on Sat afternoon.

PIH WATCHES/WARNINGS/ADVISORIES

Red Flag Warning from noon to 9 PM MDT Tuesday for IDZ410-413- 425-427. Wind Advisory from 1 PM to 9 PM MDT Tuesday for IDZ051>055.