textproduct: Pocatello

KEY MESSAGES

- Lake Wind Advisory continues for American Falls Reservoir through the afternoon due to breezy northeast winds.

- Remaining dry for several days as warming trend begins.

- Critical fire weather conditions return Tuesday and Wednesday with a hot, dry, and windy forecast.

DISCUSSION

Issued at 1224 PM MDT Sat Jun 13 2026

Looks like we're in for a very pleasant weekend, especially if you have outdoor plans. Highs today will reach the mid and upper 70s behind a cold front. While winds will be a bit breezy at times with gusts to around 30 mph, these strongest winds look to occur overnight into Sunday morning. A LAKE WIND ADVISORY continues through the afternoon today due to the north northeast winds that create larger waves on the American Falls Reservoir. It looks like we will need another one on Sunday as these northeast winds continue. We also remain dry with little to no rain/isolated storm chances for the weekend. Despite remaining in northwest flow aloft on Sunday, we will get warmer thanks to high pressure building in over the West. Highs return to the upper 70s and low 80s for many on Sunday afternoon.

The warming begins and by Tuesday, highs will push into the upper 80s and low 90s across most of Eastern Idaho. Temperatures will be bolstered in part by strong west southwest winds gusting 35 to 45 mph across most of our CWA. Given these strong winds, it would not be surprising to see a Wind Advisory by the time we get there. These strong wind gusts will continue into Wednesday and give these winds plus very dry conditions, we will see critical fire weather conditions/very high fire danger across much of the South Hills, eastern Magic Valley, and Snake River Plain.

AVIATION /00Z TAFS THROUGH 00Z SUNDAY/

Issued at 418 PM MDT Sat Jun 13 2026

Light winds and mostly clear skies expected over the next 24 hours. SUN should switch to downvalley around 04z.

FIRE WEATHER

Issued at 145 AM MDT Sat Jun 13 2026

In the post-trough environment, cooler afternoon temperatures will result in slightly higher afternoon humidity, and the northeasterly flow that sets up over the region will be lighter than Friday. Another trough, this one tracking similarly through western and central MT, will not provide much moisture this far from its center, but will kick up wind strong enough to be a major concern by Tue. If there is little increase in humidity or decrease in temperature, then critical fire weather conditions can be expected for the second half of the work week. As it looks now, a large area of low elevation locations and the southern Sawtooth NF and portions of the Caribou NF will fall into this category.

PIH WATCHES/WARNINGS/ADVISORIES

None.