Alert archive / Montana / Mesoscale Discussions in 2008

Mesoscale Discussion 1806

July 18, 200813 counties in Montana; 6 counties in Wyoming

The Storm Prediction Center issued this mesoscale discussion at Jul 18, 2008, 12:04 PM MDT for 13 counties in Montana; 6 counties in Wyoming. It was in force for 56 min.

The area

The outline as issued.

The facts

Issued: Jul 18, 2008, 12:04 PM MDT (18:04 UTC)
Expired: Jul 18, 2008, 1:00 PM MDT
In force: 56 min
Issued by: the Storm Prediction Center

Counties Big Horn County, MT, Carbon County, MT, Carter County, MT, Custer County, MT, Golden Valley County, MT, Musselshell County, MT, Powder River County, MT, Rosebud County, MT, Stillwater County, MT, Sweet Grass County, MT, Treasure County, MT, Wheatland County, MT, Yellowstone County, MT, Big Horn County, WY, Campbell County, WY, Johnson County, WY, Park County, WY, Sheridan County, WY, Washakie County, WY

The radar

The Billings radar (KBLX), 131 km from the middle of the area, began a volume at 18:03 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.

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 699Jul 18, 1:35 PM MDT

The text

As transmitted, in the capitals the NWS used until 2016.

<!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>

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 18, 1:33 PM MDT	Severe Thunderstorm Watch	SPC	Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 6 more	7 hr
Jul 18, 3:32 PM MDT	Mesoscale Discussion	SPC	Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 6 more	88 min

Nearby

Mesoscale Discussions in Montana, 2008 Mesoscale Discussions in Wyoming, 2008 Every mesoscale discussion in 2008

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.