A strong cold front brought strong winds with some damage to southeast Idaho.
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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 front brought strong winds with some damage 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 Sep 11, 1:26 PM MST, 1 hour 34 minutes earlier.
Area Forecast Discussion National Weather Service Pocatello ID 226 PM MDT Wed Sep 11 2024 .SHORT TERM...Today and Thursday. Looking at current water vapor imagery there is breezy, moist southwest flow aloft over the area ahead of an upper level low system located over Washington and Oregon. There are isolated shower and thunderstorms over Custer county currently. More west, there is currently a strong line of showers and thunderstorms looking at radar over the Idaho/Oregon/Washington State lines. Models continue to show the upper level low (the strong line of showers and thunderstorms)to reach our most northwest borders by late afternoon/early evening today. Then, models show this low move east over the northern Central mountains and Montana Divide by Thursday. Expect numerous showers and scattered thunderstorms across our northern areas with more scattered to isolated thunderstorm elsewhere Wednesday through Thursday. Moderate to heavy rainfall and gusty winds 35 to 55 mph are likely with showers and thunderstorms today into Thursday, mainly across the northern Central mountains and the Montana divide. Outside of showers and thunderstorms, models show moderate winds in the afternoon with gusts around 25 to 40 mph (especially ridgetops). The Severe Prediction Center (SPC) has a marginal outlook for severe thunderstorms for mainly wind gusts over the Central mountains. This marginal outlook also extends southward into the Snake plain where more isolated convection is expected. Any showers and thunderstorms could bring gusts near 35 to 55 mph. There is also a marginal Excessive Rainfall Outlook (ERO) over the northern Central mountains today. Over northern Custer county there is a chance of flash flooding, especially for current fires and recent burn scars. Models are still showing 0.25 to 0.75 inch of rainfall over the northern Central mountains with localized areas (extreme northern areas in Custer county) up to around 1 inch of rain. There is about a 40 to 50 percent chance of reaching 1 inch, mainly for higher elevations for northern Custer county. Southern areas of Custer county have a 20 to 30 percent chance of receiving 0.50 inch of precipiation. These precipitation amounts (0.25 to 0.75) are lower than the model run last night but more in line with model runs from the last couple of days. Our southern areas (Snake plain and southward) will, overall, see very little precipitation, around 0.01 to 0.10 inch. Areas directly under thunderstorms could see up to around 0.15 to 0.30 of rainfall. Temperatures today will be a few degrees below normal across our western/northwestern areas and near normal to a few degrees above normal for our eastern/southeastern areas. By Thursday, temperatures drop significantly, a good 20 degrees below normal. By early Thursday morning snow levels drop to around 7000 to 8500 feet. Temperatures and snow levels have dropped more than previous model runs. Models show around 1 to 7 inches of snow above around 8000 feet in our northern areas Thursday morning. Some light snow is possible at Galena Summit and even Willow Creek summit. On Thursday, few areas will see daytime highs above 60 degrees, maybe just a few on our southern borders with Utah. Thursday looks breezy as well, especially early in the morning and early afternoon, with gusts of 20 to 35 mph across the area. A lake wind advisory has been issued for the American Falls reservoir for Thursday. Wyatt .LONG TERM...Friday through next Wednesday. Friday the upper level low moves east, bringing light showers to our northeast areas over Island Park with drier conditions moving in from the west. Clouds look to clear out Thursday night and winds drop allowing for cool temperatures Friday morning. Still looking very likely that a Frost Advisory will be needed Friday morning across the Eastern Magic Valley, Shoshone region, Arco desert, and the Snake plain for temperatures 33 to 37 degrees. Zonal flow aloft sets up Saturday bringing slightly breezy winds and overall drier weather as we will be in between systems. Sunday the flow becomes more southwesterly. Expect temperatures in the upper 60s to low 70s on Saturday becoming 70s to low 80s on Sunday. Model clusters have good agreement on timing and placement of this next system late Sunday into Tuesday They still disagree on intensity. Regardless there is better agreement on good precipitation chances and colder temperatures starting Monday. Models are still showing a second system coming in Wednesday into Thursday which will keep good precipitation chances going across our area as well as much cooler temperatures. Wyatt && .AVIATION... A cold front will move through Idaho and will have thunderstorms this afternoon and evening and have vicinity at all sites. Could see higher outflow winds beyond the regular gusts if a thunderstorms approaches a site. Went with rain at all sites mainly after 06Z as the upper low progresses east. Should see 10 to 20 knot winds sustained winds at BYI, PIH and IDA with gusts 20 to 30 knots this evening through Thursday behind the cold front. Not expecting below VFR ceilings but could be close especially at SUN and DIJ. GK && .FIRE WEATHER... A red flag warning remains in effect for scattered thunderstorms for zones 422, 475 and 476 through 12 AM. Will have isolated thunderstorms in all the other zones. Other impacts will be some gusty winds especially in zones 425 and 410 through Thursday with gusts 25 to 35 mph. Will have rain and snow overnight with snow level dropping to 8 thousand to 8500 feet. Rain and high elevation snow will continue Thursday wtih very high relative humidity tonight through Thursday night. Expect dry conditions late Friday through Sunday with temperatures warming again over the weekend. Will likely see more wet systems Monday through next Thursday. GK && .AIR QUALITY...Air quality across eastern Idaho remains largely in the good to moderate category with poorer air quality near wildfires in central Idaho. Air Quality Alerts relayed from ID DEQ are largely confined to those counties in the central Idaho mountains and further west. Air quality will depend heavily on amount of rain and the rain's impact to fires today and tomorrow. Much cooler temperature will help as well. Drier and warmer conditions are expected over the weekend but two more cold and wet systems are expected Monday through Thursday next week. If these systems stay on track, fires (and any resulting smoke) will have a hard time continuing for the short term, if not longer. Wyatt && .PIH WATCHES/WARNINGS/ADVISORIES... Red Flag Warning until 2 AM MDT Thursday for IDZ422-475-476. &&
Special Weather Statement
National Weather Service Pocatello ID
339 PM MDT Wed Sep 11 2024
IDZ053-062>064-112230-
Big Hole Mountains ID-Upper Snake River Plain ID-Caribou Range ID-
Blackfoot Mountains ID-
339 PM MDT Wed Sep 11 2024
...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN TETON...
SOUTHEASTERN JEFFERSON...NORTHEASTERN BONNEVILLE...SOUTHEASTERN
MADISON AND EAST CENTRAL BINGHAM COUNTIES THROUGH 430 PM MDT...
At 338 PM MDT, Doppler radar was tracking a strong thunderstorm near
Bone, or 10 miles south of Ririe Reservoir, moving northeast at 40
mph.
HAZARD...Wind gusts in excess of 35 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to outdoor objects is
possible.
Locations impacted include...
Ririe Reservoir, Ririe, Bone, and Heise.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4326 11178 4338 11197 4384 11166 4354 11119
TIME...MOT...LOC 2138Z 221DEG 33KT 4338 11181
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...35 MPH
DMHThe national radar mosaic for the moment the first event began.
2 high wind. Local standard time, as filed.
A 66 mph wind gust was measured at the Challis Airport ASOS site. 3 or 4 evergreen trees were also blown over due to the extreme winds in the Challis cemetery.
Strong winds occurred behind a cold frontal passage. Willow Creek Summit ITD site recorded a 60 mph gust with several gusts over 50 mph recorded.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2024Every state in 2024This day in weather historyWarnings in Idaho, September 2024
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: 1216413, 1216416.