A strong Pacific storm brought heavy mountain snow to central and eastern Idaho with many locations recording over 10 inches from Thursday night through Saturday morning.
Every event with a place to put it; 7 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 Pacific storm brought heavy mountain snow to central and eastern Idaho with many locations recording over 10 inches from Thursday night through Saturday morning.
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 22, 2:00 PM MST, 6 hours earlier.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html><!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The national radar mosaic for the moment the first event began.
7 heavy snow. Local standard time, as filed.
Heavy snow amounts recorded at SNOTEL sites were: 14 inches at Dollarhide, 13 inches at Lost Wood Divide, 12 inches at Galena, and 10 inches at Hyndman. A spotter reported 8 inches at Ketchum.
Pomerelle Mountain reported 22 inches of snow with 22 inches also falling at the Howell Canyon SNOTEL. 15 inches fell at Bostetter Ranger Station.
Heave SNOTEL amounts were 22 inches at Vienna Mine and 16 inches at Galena Summit.
The Bear Canyon SNOTEL recorded 11 inches of snow and the Smiley Mountain SNOTEL also recorded 11 inches.
The Emigrant Summit SNOTEL recorded 12 inches of snow.
Ten inches of snow fell at the Sedgwick Peak SNOTEL with 6 inches at the Wildhorse Divide SNOTEL. The public reported 5 inches 7 miles northwest of Inkom.
The WHite Elephant SNOTEL recorded 23 inches of snow. Crab Creek reported 8 inches and 1 mile west of Island Park 7 inches.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2018Every state in 2018This day in weather historyWarnings in Idaho, November 2018
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 2026-10-01. Each event’s entry at NCEI: 792642, 792643, 792644, 792648, 792649, 792646, 792647.