Very strong winds were observed during a widespread outbreak of severe weather.
Every event with a place to put it. 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.
Very strong winds were observed during a widespread outbreak of severe weather.
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 Aug 22, 8:03 PM MST, 3 hours 47 minutes earlier.
Area Forecast Discussion National Weather Service Pocatello ID 903 PM MDT Thu Aug 22 2024 .UPDATE... Have gone ahead and expired/cancelled the current Red Flag Warnings for today in addition to issuing a new Red Flag Warning for FWZ 427 below 6000 feet from 1200 to 2100 MDT Friday for gusty winds and low humidity coordinated with SIIFC. The latest forecast remains on track with isolated showers and thunderstorms overnight increasing in coverage during the daytime hours on Friday. The Storm Prediction Center has also highlighted much of ERN Idaho including along the Montana border region in a Marginal Risk (5-14% chance) of severe thunderstorms with stronger storms capable of producing wind gusts in excess of 50 mph and up to 1" in diameter hail. We will start our cooling trend tomorrow of which will continue into the weekend where highs will be back in the 60s/70s starting Saturday. MacKay && .PREV DISCUSSION... /issued 126 PM MDT Thu Aug 22 2024/ DISCUSSION... Hot, dry and windy is the theme for much of the day today before things change quite a bit for the weekend. For the rest of today, expect S/SW winds to remain breezy through the afternoon, likely subsiding a touch overnight, before ramping up once again throughout the day Friday. Precipitation will move north out of Utah during the late afternoon potentially sparking some showers and thunderstorms across the easternmost portions of the forecast area. Coverage looks rather isolated however and hi-res CAMs have differences in opinion on timing and coverage. Nevertheless, it will be possible. A better surge of moisture looks to push into the area after sunrise Friday bringing another round of showers and isolated/scattered thunderstorms which will likely linger into the evening hours. Thunderstorm coverage looks like it'll primarily be focused in the eastern highlands although we could get some tstms into the Snake Plain and central mountains as well. Thunderstorm chances and coverage will increase the further east you go, closer to the Wyoming border. These storms will be possible of producing gusty winds and some small hail. In addition to the precip, winds will be quite breezy tomorrow regionwide. Accordingly, a Lake Wind Advisory has been issued for the American Falls Reservoir throughout the daylight hours tomorrow to account for this. The winds and precip will slowly taper off as we move into the late evening Friday and head towards Saturday AM. On Saturday, the weather will turn noticeably cooler for the first time in a few months. An upper level trough will begin to exert its influence across much of the Pacific NW bringing increased cloud cover and much cooler temperatures. Models have come into agreement a larger mid-level low splitting into two with one piece heading north into British Columbia with the other hanging around in southern Oregon/northern California. The northernmost feature appears to be taking much of the moisture with it on Saturday so PoPs have trended down quite a bit over the last few forecasts. Saturday looks mostly dry now for much of the region outside of some shower chances across the central mountains. Sunday looks like we'll get a bit more moisture in here allowing for PoPs regionwide but QPF is not overly impressive. What this feature will bring though is much cooler temperatures for the weekend with highs expected in the 60s and 70s in the lower valleys and even cooler across the higher terrain. Saturday also looks a touch breezy as well (15-20 mph) so that combined with the cooler temps will certainly bring a touch of fall to the region. Overnight lows in the 30s and 40s for most spots also will serve as a reminder that autumn is quickly inching closer. As we move into the workweek, the trough will lift allowing temperatures to gradually climb Monday and Tuesday back a bit closer towards normal and keeping things mostly dry. It does appear that the warmup will be short-lived though as models show yet another trough sweeping down out of western Canada on Wednesday and Thursday and this would bring us another drop in temperatures for midweek. As of now, it doesn't appear that it will be quite as cool as what we're expecting for this weekend but that could still change. For now, the forecast calls for highs generally in the 70s in the lower valleys though. McKaughan AVIATION... VFR conditions this afternoon with skies remaining mostly clear although clouds cover and precip chances gradually begin to increase during the evening and overnight. Winds will remain breezy for much of the period as we being to feel the influence of an upper level trough that will impact the area through the weekend. Breezy S/SW winds in the 15-25kt range with even higher gusts are expected. They'll likely lessen a touch overnight, but not much, before increasing once again for much of the day Friday. Looks like precip will avoid most terminals this evening and overnight but could sneak in to KPIH, KIDA and KDIJ by late morning/early afternoon tomorrow. Still a bit of uncertainty though so the forecast remains dry, for now, but could need VCSH/VCTS for the 00Z forecast. McKaughan FIRE WEATHER... Red Flag Warnings continue this afternoon until 9PM for Fire Zones 422, 425, 427 and 476 as breezy winds and low RHs will combine for critical fire weather conditions. Zone 410 will see the Red Flag continue in to the early AM hours as the dry, windy weather early transitions to some thunderstorm potential later tonight and overnight. It looks rather isolated in coverage and things may even be trending a bit drier but for continuity and messaging sake, will let it ride as is. Winds will remain breezy into the day tomorrow and may be even windier in some spots. The big difference will be increased RHs as moisture surges into the region. The western half of the region will be driest, namely 425, 427. 422 and 475 but it does appear RHs will remain above 15% for much, if not all of those areas tomorrow, so not planning on any Red Flags at this time. Much further east, RHs are much higher but thunderstorms will be the greater threat. That being said, coverage looks isolated to scattered, at best. 411 probably has the best chance for seeing SCT coverage but parts of 413 and 410 will as well. Nevertheless, after coordination with EIIFC about the threats for tomorrow, decided to hold off on a RFW. Things will be much cooler as we move into the weekend and early next week with even some snow possible above 9000 ft or so. Any precip will likely be more showery in nature and not expecting much tstm potential Saturday and beyond. That being said, no significant fire weather concerns in the extended portion of the forecast at this time. McKaughan && .PIH WATCHES/WARNINGS/ADVISORIES... Red Flag Warning from noon to 9 PM MDT Friday for IDZ427. &&
Preliminary Local Storm Report
National Weather Service Pocatello ID
1019 PM MDT Thu Aug 22 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0939 PM Tstm Wnd Gst 9 W Black Pine 42.04N 113.15W
08/22/2024 M50 MPH Cassia ID Mesonet
Mesonet station MOFI1 Moburg Canyon.
&&Preliminary Local Storm Report
National Weather Service Pocatello ID
1028 PM MDT Thu Aug 22 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0800 PM Tstm Wnd Gst 4 SW Alton 42.19N 111.20W
08/22/2024 M53 MPH Bear Lake ID Dept of Highways
RWIS ITD37 Rocky Point US-30.
&&
CMPreliminary Local Storm Report
National Weather Service Pocatello ID
1036 PM MDT Thu Aug 22 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1025 PM Tstm Wnd Gst 12 SE Butte City 43.50N 113.05W
08/22/2024 M62 MPH Butte ID Mesonet
Mesonet station RWM INL Radioactive Waste
Mgmt.
&&Preliminary Local Storm Report
National Weather Service Pocatello ID
1037 PM MDT Thu Aug 22 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1019 PM Tstm Wnd Gst 8 NW Heglar 42.55N 113.26W
08/22/2024 M49 MPH Cassia ID Mesonet
Mesonet station RFTI1 Raft River RAWS.
&&Preliminary Local Storm Report
National Weather Service Pocatello ID
1045 PM MDT Thu Aug 22 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1030 PM Tstm Wnd Gst 12 NW Atomic City 43.55N 113.01W
08/22/2024 M52 MPH Butte ID Mesonet
Mesonet station LOS Lost River Rest Area.
&&Preliminary Local Storm Report
National Weather Service Pocatello ID
1046 PM MDT Thu Aug 22 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1015 PM Tstm Wnd Gst 3 E Idahome 42.41N 113.32W
08/22/2024 M46 MPH Cassia ID Dept of Highways
RWIS ITD48 Idahome Interchange I-84.
&&
CMThe Pocatello radar (KSFX), 77 km away, was scanning. The volume nearest the first event began at 06:48 UTC.
58 thunderstorm wind. Local standard time, as filed.
Mesonet station PC219 Galbraith recorded a 59 mph thunderstorm outflow wind.
Tree limbs down in area of 13th Ave and 14th Ave.
Idaho Power reported over 700 customers without power due to thunderstorm winds near Acequia.
Six trees blown down in Skinner Canyon.
Trees downed along E 600 N reported by social media.
Jefferson County Emergency Manager reported multiple trees down in the area of E Menan Lorenzo Highway and N 3950 E.
A 60 mph wind gust at Big Southern Butte.
RWIS site ITD 55 Henry's Lake measured a 60 mph wind gust.
Large tree limb fell on fence in American Falls.
A 67 mph wind gust at Big Cox's Well.
A 64 mph wind gust measured at Cotton Ridge.
Mesonet site RWM Radioactive Waste Management site at INL.
Tree limb reported down on wires.
A 59 mph wind gust at Pebble.
A 62 mph wind gust at TRA Reactor Technologies Complex at INL.
Measured wind gust of 60 mph at Chesterfield Reservoir.
Received report on social media of measured 74 mph wind gust in Chesterfield. A large pine tree top was snapped off.
A wind gust of 62 mph measured at Medicine Lodge.
A wind gust of 66 mph measured at base of Howe Peak.
The Kettle Butte RWIS site Kettle Butte recorded a 59 mph wind gust.
A 64 mph wind gust measured at Pole Canyon mesonet site.
Several trees and large tree limbs snapped and down in Franklin reported via social media.
The mesonet station Moss Avery recorded a 58 mph wind gust.
A private weather station just east of Birch Creek Rd measured a 59 mph wind gust.
Jefferson County Dispatch reported multiple trees down across far eastern Jefferson County. No injuries or fatalities reported.
Large tree limbs broken off in Ririe and fell into roads. One tree was downed on wires.
Several trees downed in the Kelly Mountain area, Kelly Canyon Trail, and Kelly Canyon Resort. One trail was blocked.
Emergency Management reported tree downed on vehicle on Kelly Canyon Rd with vehicle on fire.
Large tree limbs were downed blocking 160 E near E Ririe Highway.
Rocky Mountain Power reported power outages northeast of Herbert due to thunderstorm winds.
Madison County Sheriffs Office reported E 8000 S closed at S 6200 E due to downed wires.
The Cub River mesonet site measured a 62 mph wind gust.
RWIS ITD18 Ririe site recorded a 66 mph wind gust.
INL Puzzle site RWIS ITD95 recorded a 64 mph wind gust.
Madison County Sheriffs Office reported wires downed across the county with numerous power outages.
A large aspen tree was downed near Horseshoe Canyon.
Three power poles snapped off along E 2000 N. Photos received via social media.
Fremont County 911 Dispatch reported windows smashed out on one vehicle traveling on ID 33 due to falling power lines and power poles. No injuries occurred.
Fremont County Emergency Manager reports multiple power poles down in area of Idaho 33 milepost 108 near Newdale. Rocky Mountain Power reported several thousand customers without power.
Multiple large trees snapped off at a residence including two pines estimated at over 2 feet in diameter. Power poles snapped off at base.
Madison County Emergency management reported significant damage to electrical infrastructure. Multiple power poles snapped off and wired down along 2000 N between 5000 E and 9000 E in addition to estimates of 100 power poles downed across the area.
Fremont County 911 Dispatch Center reported multiple trees and wires down across south central Fremont County.
Rocky Mountain Power reports over 160 customers without power southwest of Teton due to thunderstorm winds.
A tree reported downed blocking E 200 N near N 2300 E.
Eight trees reported downed across a canal in the Wilford area. Reports and photos received via social media.
Fall River Rural Electric reported power outages due to thunderstorm winds in the Wilford and Twin Groves area.
Two trees snapped off along N 2600 E reported via social media.
Multiple trees uprooted in the area of E 500 N and N 2500 E.
A 62 mph wind gust measured at PC141 Canyon Creek.
The RWIS ITDD3 Fall River US 20 site measured a 72 mph wind gust.
Rocky Mountain Power reported over 200 customers without power due to thunderstorm winds.
Fremont County Dispatch reported a tree down on wires along N 3400 E south of E 1000 N.
A tree was downed blocking a road in the area of Idaho Highway 32 and E 1200 N/Reclamation Rd. Received via social media.
Large tree limbs downed at Ashton Elementary School. Also portions of a wood and sheet metal roof blown off a building in the area.
Several trees and large tree limbs reported downed in Ashton.
Tree downed in Warm River.
Fall River Rural Electric Cooperative reported power outage near Warm River.
Idaho Power reported over 100 customers without power west of Rockford.
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, August 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: 1213204, 1213205, 1213206, 1214772, 1214776, 1214777, 1214778, 1214779, 1214781, 1214782, 1214783, 1214784, 1214786, 1214787, 1214788, 1214793, 1214795, 1214796, 1214797, 1214798, 1214799, 1214800, 1214802, 1214804, 1214806, 1214807, 1214809, 1214810, 1214811, 1214812, 1214813, 1214814, 1214815, 1214816, 1214817, 1214818, 1214819, 1214820, 1214821, 1214822, and more.