Alert archive / Idaho / Winter Storm Warnings in 2025

Winter Storm Warning 9, NWS Pocatello, ID

December 17, 2025Blaine County, Butte County, Custer County, Idaho

NWS Pocatello, ID issued this winter storm warning at Dec 17, 2025, 1:37 PM MST for Blaine County, Butte County, Custer County, Idaho. It took effect at Dec 18, 2025, 5:00 AM MST. It was in force for 39 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 17, 2025, 1:37 PM MST (20:37 UTC)
In effect from: Dec 18, 2025, 5:00 AM MST
Expired: Dec 19, 2025, 7:41 PM MST
In force: 39 hr
Issued by: NWS Pocatello, ID

Counties Blaine County, ID, Butte County, ID, Custer County, ID

The radar

The Pocatello radar (KSFX), 119 km from the middle of the area, began a volume at 20:37 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this winter storm warning went out, 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 this winter storm warning went out at Dec 17, 10:55 AM MST, 2 hours 42 minutes earlier.

Area forecast discussion, Dec 17, 10:55 AM MST, 2 hours 42 minutes before

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In the hours before

Local storm report, Dec 17, 12:55 PM MST, 42 minutes before

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Local storm report, Dec 17, 12:59 PM MST, 38 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
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      <p id="message2">
        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Dec 17, 1:02 PM MST, 35 minutes before

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      <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>
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Local storm report, Dec 17, 1:12 PM MST, 25 minutes before

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      <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.
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Local storm report, Dec 17, 1:22 PM MST, 15 minutes before

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<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.
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Local storm report, Dec 17, 1:36 PM MST, 1 minute before

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</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>
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The office that day

Everything else NWS Pocatello, ID issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 17, 9:52 AM MST	Severe Thunderstorm Warning Destructive damage threat	PIH	Bannock, Bear Lake, Bingham, Blaine, Bonneville, Caribou and 4 more	53 min
Dec 17, 10:43 AM MST	Severe Thunderstorm Warning Destructive damage threat	PIH	Bannock, Bear Lake, Bingham, Bonneville, Caribou, Cassia and 3 more	47 min
Dec 17, 11:30 AM MST	Severe Thunderstorm Warning Considerable damage threat	PIH	Bannock, Bear Lake, Caribou, Cassia, Franklin, Oneida	30 min

Nearby

Winter Storm Warnings in Idaho, 2025 Every winter storm warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.