Idaho, 2015

Winter Weather in Idaho, April 14 to 15, 2015

April 14 to 15, 2015 · NWS PIH · 1 event in 1 county or zone

Two to 4 inches of snow in the lower Snake River Plain caused 4 slide offs and 5 accidents on interstate 15 in the Fort Hall, Chubbuck, and Pocatello areas. One of the crashes south of Fort Hall involved a passenger car sliding into a snow plow.

The toll

Deaths
0
Injuries
0
Property damage
$3,000
Crop damage
None recorded
Events
1

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.

What happened

The episode as NWS PIH wrote it up.

Two to 4 inches of snow in the lower Snake River Plain caused 4 slide offs and 5 accidents on interstate 15 in the Fort Hall, Chubbuck, and Pocatello areas. One of the crashes south of Fort Hall involved a passenger car sliding into a snow plow. No injures occurred in the accidents.

What forecasters said that day

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 14, 12:55 PM MST, 2 hours 5 minutes earlier.

Area forecast discussion, Apr 14, 12:55 PM MST, 2 hours 5 minutes before
<!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>

In the hours before

Local storm report, Apr 14, 1:30 PM MST, 1 hour 30 minutes before
<!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>

Event by event

1 winter weather. Local standard time, as filed.

Winter Weather, Lower Snake River Plain

When
April 14, 3:00 PM MST to April 15, 12:00 PM MST
Where
Lower Snake River Plain forecast zone
Property damage
$3,000
Reported by
Newspaper

Two to 4 inches of snow in the lower Snake River Plain caused 4 slide offs and 5 accidents on interstate 15 in the Fort Hall, Chubbuck, and Pocatello areas. One of the crashes south of Fort Hall involved a passenger car sliding into a snow plow. No injures occurred in the accidents.

What these are

Winter Weather
Snow, sleet or freezing rain below warning levels that still caused disruption, damage or casualties.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Idaho in 2015Every state in 2015This day in weather historyWarnings in Idaho, April 2015

Sources

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: 570773.