A strong cold frontal passage brought high wind gusts along and behind the front to southeast Idaho.
Every event with a place to put it; 5 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS PIH wrote it up.
A strong cold frontal passage brought high wind gusts along and behind the front to southeast Idaho.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pocatello, ID wrote its last area forecast discussion before the first event at Nov 15, 1:12 PM MST, 8 hours 48 minutes earlier.
Area Forecast Discussion National Weather Service Pocatello ID 112 PM MST Mon Nov 15 2021 ..SHORT TERM...Tonight and Tuesday. A fast moving storm will bring some light rain and snow to central and eastern Idaho. The biggest impacts though will be from strong winds across the area. Winds will continue to ramp up everywhere overnight. Strong ridgetop winds with gusts near 55 mph are likely across the central mountains overnight. This combined with a quick burst of snow overnight, may produce a very small window of poor driving conditions across Banner and Galena Summits. However, the worst of any blowing snow conditions will likely remain above 9000ft. It still looks like a Trace to 3 inches will be the most common snowfall range across the central mountains, especially the Sawtooths and surrounding ranges. A couple of peaks may exceed that. Most of the snow should clear those areas between 2-5am. For the Snake Plain, Magic Valley and the rest of the highlands, very light rain and snow is expected. Rain and snow shifts to south and east of the Snake Plain after sunrise, with only a few showers along the Wyoming border by afternoon. We could see a couple of inches on the highest peaks of the Big Holes and Bear River Range. Winds will begin to push above WIND ADVISORY thresholds around that 2-3am timeframe and continue through the day. As winds shift to the northwest across the far Upper Snake Plain, the strongest winds will shift southward later tomorrow. The strongest sustained winds will push 25-35 mph with gusts around 50 mph in general. It is quite possible we smaller areas of sustained winds and gusts exceeding those numbers. Expect driving issues for larger vehicles and also pockets of blowing dust. For now though, we will not be putting any areas under a HIGH WIND WARNING. That said, we are adding the Raft River region, the Marsh/Arbon Highlands and the Blackfoot mountains. Portions of the Teton Valley and Big Holes may needed to be added later, especially if we end up with more blowing dust impacts along highways 32 and 33. Winds will quickly die down later in the evening and tomorrow night. Keyes .LONG TERM...Wednesday through Monday. Wednesday and Thursday will be dry as upper level ridge moves through Idaho. Wednesday will likely be coldest day of the week with highs only in the 20s in high mountains and only in the 30s even in low elevations. Will start to see a warming trend with high temperatures back to near normal. The next Pacific system is expected to spread rain and snow back into the region Thursday night and Friday. Not expecting significant impacts with this system as precipiation should stay very light with some localized 1 to 3 inch amounts in the eastern highlands and central mountains possible. Snow levels will begin at 4 thousand feet and rise rapidly to 6 thousand feet during the day on Friday. Will start to dry Saturday with lingering light snow in eastern mountains with widespread dry conditions Sunday and Monday with temperatures slightly cooler Saturday than Friday with a warming trend late weekend into early next week with Monday expected to above normal temperatures once again but Thursday through Monday will not have significant temperatures swings. GK && .AVIATION...Main impact in TAFs will be strong winds at all sites especially at BYI, PIH and IDA. A cold frontal passage will see winds shift to southwesterly direction after being mainly from the south today. Sustained 20 to 30 knot winds at BYI, PIH and IDA are expected tonight and Thursday with gusts in the 30 to 40 knot range. Expect 15 to 25 knots at SUN and DIJ Thursday as the southwest flow picks up. Will see some showers and some MVFR conditions in the 05 to 12Z time frame at SUN and DIJ. Kept ceilings VFR at other three sites with some low level wind shear possible as well at BYI, PIH and IDA. GK && .PIH WATCHES/WARNINGS/ADVISORIES... Wind Advisory from 2 AM to 8 PM MST Tuesday for IDZ051>055-057- 058-062. &&
The national radar mosaic for the moment the first event began.
5 high wind. Local standard time, as filed.
A 64 mph gust was measured 1 mile east northeast of Howe.
A 58 mph wind gust was measured at the Burley Municipal Airport.
A 69 mph wind gust was measured at the Rover mesonet site 9 miles south southwest of Mud Lake.
A 61 mph wind gust was measured at the Kettle Butte site.
A 59 mph wind gust was recorded at Moburg Canyon.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2021Every state in 2021This day in weather historyWarnings in Idaho, November 2021
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 992214, 992217, 992213, 992215, 992348.