An avalanche piled up to 3 feet on state Highway 75 and caused delays for over an hour.
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The episode as NWS PIH wrote it up.
An avalanche piled up to 3 feet on state Highway 75 and caused delays for over an hour.
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 Mar 27, 3:09 AM MST, 8 hours 51 minutes earlier.
Area Forecast Discussion National Weather Service Pocatello ID 409 AM MDT Wed Mar 27 2019 .SHORT TERM...Today through Friday. Current water vapor imagery shows moisture moving into our area in southwest flow off of an upper level low just off the Oregon coast. Current water radar imagery shows light rain/snow showers over the Central mountains and the Lost River Range. Models continue to show light showers over the Western Central mountains today until a cold front moves through the area starting across our western areas early this evening bringing moderate showers. The cold front will then move through to our eastern areas by Thursday morning. Isolated thunderstorm are possible along this frontal boundary, particularly late this afternoon into the early evening today. Snow levels will be around 6500 to 7000 feet. The Central mountains and Montana Divide will likely get around 3 to 6 inches of snow and mountains elsewhere above 6500 feet will receive 1 to 3 inches of snow. Some mountain tops could get 6 to 12 inches particularly from Galena summit to the Pioneers, the Lost River Range, and the Island Park area along the Montana Divide to include Raynolds pass and Targhee pass. A special weather statement remains in place for winter conditions above 6500 feet, mainly for the Central mountains, Lost River Range and the Montana Divide area. Thursday afternoon light snow continues, particularly for the Northern Central mountains, Lost River Range, and the Montana divide areas with wrap around moisture. Expect breezy to moderate winds, particularly Thursday behind the cold front. Friday models are continuing to show light to moderate showers with snow levels dropping to around 5000 feet for mainly for the eastern highlands and eastern bench areas along the Snake River plain. Temperatures will be about 5 to 10 degrees above normal today before dropping to near normal Thursday and slightly below normal Friday. Wyatt && .LONG TERM...Friday night through next Wednesday. Things look to remain showery with warmer temperatures returning. There doesn't appear to be really any day that could be characterized as dry, but the days with the lowest potential for showers will be Saturday and Sunday. The models may be slowing down the arrival of the next big surge of moisture with the next storm. It looks like the bulk of that may be holding off until Monday night and Tuesday. Keyes && .AVIATION...Rain and snow showers will take their time shifting east across the part of the state today. We are expecting precipitation to remain over the central mountains, including a decent potential of it staying north and west of SUN. We will keep VCSH in the TAF though in case a stray cell drifts over the airport or things shift east a little quicker than the current forecast shows. Even if that happens, look for VFR weather there...with obvious VFR weather at all of the TAF sites. For this evening, a band of showers (perhaps even a thunderstorm) will beginning pushing east into the central mountains and Magic Valley. With this band, look for low-end VFR/MVFR ceilings to develop especially for SUN. Keyes && .HYDRO...Rain on snow below 6500 feet will continue to cause snow melt for areas that have snow. Currently, models are showing 0.25 to 0.40 of rain across the area. The NOHRSC snow melt model shows areas near Bellevue, Picabo, Arco, Rexburg, Dubois, Driggs, Inkom, Grace, and Preston having snow melt from around 0.25 to 0.50 inches in addition to rain amounts. Temperatures in most of these areas will range from 29 to 34 degrees tonight. There will some areas that receive some minor ponding problems, but widespread moderate to major ponding is not expected at this time. Wyatt && .PIH WATCHES/WARNINGS/ADVISORIES... None. &&
The national radar mosaic for the moment the first event began.
1 avalanche. Local standard time, as filed.
An avalanche piled up to 3 feet on state Highway 75 and caused delays for over an hour.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2019Every state in 2019This day in weather historyWarnings in Idaho, March 2019
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: 815406.