A Wind Advisory is in effect Tuesday for the American Falls reservoir as northeast winds are expected to reach 15 to 20 mph with gusts up to 30 mph. The advisory runs from 6 AM to 9 PM MDT Tuesday, covering a day that also brings isolated thunderstorms and breezy conditions across the region.
Monday night is expected to stay mostly cloudy, with a few thunderstorms and lows dropping into the lower 40s for the Snake River Plain. Winds are expected to blow from the northeast around 10 to 15 mph, with gusts as high as 25 mph.
Tuesday should turn a little more active. High temperatures are forecast to reach the lower to mid 60s, while north-northeast winds of 15 to 25 mph could produce gusts as high as 35 mph. The National Weather Service advisory for the reservoir is aimed at boaters and anyone near open water, where even a modest wind shift can quickly turn rough.
The warning fits into a larger stretch of unsettled weather that runs from Monday night through Thursday afternoon. After Tuesday’s wind and scattered storms, Wednesday is expected to turn sunny and warmer, with highs in the mid to upper 60s, before thunderstorms return later in the week.
That sequence matters because the strongest disruption arrives before the week’s calmer stretch, not after it. For people headed to American Falls Reservoir, Tuesday is the day to expect the rough water and the tightest wind window, and the safest bet is to plan around the advisory rather than hope it expires before conditions change. More regional weather details are available in our Las Vegas Weather: Wind Advisory, cooler air and gusts hit Thursday coverage.
