Alert archive / Montana / Mesoscale Discussions in 2005

Mesoscale Discussion 1365

June 16, 2005Teton County, Idaho; 21 counties in Montana; 5 counties in Wyoming

The Storm Prediction Center issued this mesoscale discussion at Jun 16, 2005, 3:54 PM MDT for Teton County, Idaho; 21 counties in Montana; 5 counties in Wyoming. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued: Jun 16, 2005, 3:54 PM MDT (21:54 UTC)
Expired: Jun 16, 2005, 5:30 PM MDT
In force: 96 min
Issued by: the Storm Prediction Center

All 27 counties

Teton County, ID, Big Horn County, MT, Blaine County, MT, Carbon County, MT, Chouteau County, MT, Fergus County, MT, Gallatin County, MT, Garfield County, MT, Golden Valley County, MT, Hill County, MT, Judith Basin County, MT, Meagher County, MT, Musselshell County, MT, Park County, MT, Petroleum County, MT, Phillips County, MT, Stillwater County, MT, Sweet Grass County, MT, Treasure County, MT, Valley County, MT, Wheatland County, MT, Yellowstone County, MT, Big Horn County, WY, Hot Springs County, WY, Park County, WY, Teton County, WY, Washakie County, WY

The radar

The Billings radar (KBLX), 74 km from the middle of the area, began a volume at 21:58 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 nearest sounding before it

Great_falls, MT (KTFX), launched 12:00Z, 9.9 hours before the alert went out and 185 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 970 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 96 m²/s²
0-3 km storm-relative helicity: 223 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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
Jun 16, 1:35 PM MDT	Severe Thunderstorm Watch	SPC	Teton	8 hr
Jun 15, 6:15 PM MDT	Mesoscale Discussion	SPC	Carter, Custer, Powder River, Prairie, Rosebud, Treasure	2 hr
Jun 16, 12:43 PM MDT	Mesoscale Discussion	SPC	Blaine, Broadwater, Carbon, Chouteau, Fergus, Gallatin and 12 more	2 hr

Nearby

Mesoscale Discussions in Montana, 2005 Mesoscale Discussions in Wyoming, 2005 Mesoscale Discussions in Idaho, 2005 Every mesoscale discussion in 2005

Sources

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