A strong cold front brought widespread 50 to 60 mph wind gust to the Upper Snake River Plain on the 21st.
Every event with a place to put it; 2 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 front brought widespread 50 to 60 mph wind gust to the Upper Snake River Plain on the 21st.
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 Apr 21, 1:08 PM MST, 52 minutes earlier.
Area Forecast Discussion National Weather Service Pocatello ID 208 PM MDT Sun Apr 21 2024 .SHORT TERM...Tonight and Monday As expected, we've seen a bit more cloud cover across the region today along with breezy winds across the lower valleys. Winds, although breezy, remain below Wind Advisory criteria and should remain as such throughout the afternoon and evening. A shortwave well to our north is to blame for all of this but despite clouds and winds, temps are running well above normal with widespread 60s being observed. Unlike the past few days, there is a signal in the hi-res CAMs that are supportive of precip today, focused primarily across the eastern Highlands. Coverage will be isolated in nature but and even a thunderstorm or two can't be ruled out. Not seeing any signal in the models to show precip potential exists anywhere else however. Once the sun goes down, winds should subside and skies will gradually start to clear during the overnight hours. Monday looks to be a pleasant day across eastern Idaho with mostly clear skies and no precipitation expected. Winds will remain a touch breezy, but not as brisk as today. Temperatures will be 3-5 degrees cooler for most locations but still running on the warmer side of normal for late April. McKaughan .LONG TERM...Tue through next Sun night. The upper level pattern transitions to a warmer west and southwesterly flow with a low entering the southern Great Basin on Thu morning. Troughing enters southern Idaho and brings some precipitation as early as Wed afternoon/evening. A stronger trough passes through northern Great Basin on Thu night through Sat night. This brings a threat of precipitation every period. By Sun, the precipitation threat is limited to eastern and northern zones. With the stronger trough, west to northwest wind arrives and temperatures start to cool. Maximum temperatures during this period occur Wed before the first low pushes stronger moisture into the eastern Gem State. Afternoon highs stay above normal until Fri, after the second wave enters the picture. Overnight lows are mild to near normal with all the cloud cover starting Wed night. Thu afternoon to the end appears to be windy to very windy, all driven by the arrival of all these lows and troughing. Messick && .AVIATION... Wind took its time developing this morning, but KBYI has reached 15G25KT range already. This is from a trough with its center in western MT dragging a cold front through eastern Idaho this afternoon and evening. Behind the front on Mon, expect another gusty afternoon and maybe early evening. Only KDIJ is far enough north with west-facing mountain slopes that will help develop showers today, but do not expect any impact to CIG or VSBY from any of this. Perhaps some CIGs today, but much drier Mon. Messick && .HYDROLOGY... No major changes in hydro forecasts at this time. Water levels on the Portneuf river continue to run high, just below moderate flood stage for the Portneuf river in Pocatello. The river forecast for the Portneuf river in Pocatello shows the river running above flood stage for the foreseeable future and likely climbing back to moderate flood stage in a few days. At Topaz, levels remain and are forecast to remain very near minor flood stage. Levels are forecast to slowly rise towards the end of this next week with warming temperatures through Wednesday and the return of precipitation chances in the second half of the week. McKaughan/Moore && .PIH WATCHES/WARNINGS/ADVISORIES... None. &&
The national radar mosaic for the moment the first event began.
2 high wind. Local standard time, as filed.
Widespread 50 to 60 mph gusts caused some blowing dust and the Camas site on interstate 15 dropped visibility to a half mile at 5 pm MDT.
Widespread 50 to 60 mph gusts were measured with 58 mph measured at the Idaho Falls ASOS site.
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, April 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: 1178360, 1178361.