textproduct: Pocatello

KEY MESSAGES

- Incoming low will maintain very windy conditions in portions of the Snake River plain through early evening.

- Low brings a slight chance of precipitation to the eastern highlands tonight.

- Low also brings even more cooling from today to Monday.

DISCUSSION

Issued at 246 PM MDT Sun Sep 13 2026

Winds remain the main story of the day as gusts continue to increase especially across the northern half of the Snake River Plain this afternoon. Wind Advisory remains in effect for Zones 52 and 67 (Arco/Mud Lake and Beaverhead/Lemhi regions) until early evening, with winds diminishing below 30 mph during the evening but remaining breezy overnight. Weak feature rotating around the center of low to the west times out to pass through East Idaho this evening into the overnight. CAMs have picked up on potential for light showers across the eastern highlands late this evening, shifting east out of the state by sunrise. Daytime temps remain cool today compared to previous days, but deepest cooling arrives Monday with temperatures dropping into the mid to upper 60s for most.

East Idaho remains under the influence of trough to the west for much of the week. Gradual warming trend will be in place with dry conditions into mid week. By Thursday, next low feature shifts toward the region, and models are depicting trajectory similar to current low. East Idaho could see precipitation develop for Thursday and Friday, along with another round of breezy winds.

AVIATION /00Z TAFS THROUGH 00Z TUESDAY/

Issued at 535 PM MDT Sun Sep 13 2026

Expect VFR conditions for all TAFs sites through the period. Winds are starting to drop. But the lighter winds will be short- lived early this evening. Another burst of wind is expected around midnight tonight as a second push of cold air arrives as an upper trof moves through. Expect gusts of around 20 to 30 mph overnight, mainly after 4 to 6Z. Breezy winds will continue into tomorrow afternoon before dropping off by mid to late afternoon into the early evening tomorrow. May see a period of showers at DIJ with the upper trof after 06Z this evening as well but still VFR conditions are expected. Look for skies to become clear by early tomorrow morning for all TAF sites.

FIRE WEATHER

Issued at 246 PM MDT Sun Sep 13 2026

Strong wind gusts the main impact this evening mainly in zone 410 and 411 which will die down after sunset. Most minimum humidities are above 15 percent. Will see occasional gusts up to 30 mph return after midnight through Monday morning as a second push of cold air and the upper level trof moves through. Humidity will be well above 15 percent on Monday though. Will be much cooler Monday with a warming trend beginning again on Tuesday. Next chance for more widespread showers will be on Thursday as strong southerly flow aloft pushes moisture into Idaho.

PIH WATCHES/WARNINGS/ADVISORIES

Wind Advisory until 7 PM MDT this evening for IDZ052-067.