Alert archive / Idaho / Special Weather Statements in 2017

Special Weather Statement, NWS Missoula, MT

June 27, 2017Lemhi County, Idaho

NWS Missoula, MT issued this special weather statement at Jun 27, 2017, 3:42 PM MDT for Lemhi County, Idaho. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 27, 2017, 3:42 PM MDT (21:42 UTC)
Expired: Jun 27, 2017, 4:15 PM MDT
In force: 33 min
Issued by: NWS Missoula, MT

County Lemhi County, ID

The radar

The Missoula radar (KMSX), 196 km from the middle of the area, began a volume at 21:44 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

Boise Airport, ID (KBOI), launched 12:00Z, 9.7 hours before the alert went out and 265 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: 64 J/kg
Mixed-layer CIN: -295 J/kg
Mixed-layer LCL: 2571 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: -109 m²/s²
0-3 km storm-relative helicity: -74 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Missoula, MT wrote its last area forecast discussion before this special weather statement went out at Jun 27, 2:38 PM MDT, 1 hour 4 minutes earlier.

Area forecast discussion, Jun 27, 2:38 PM MDT, 1 hour 4 minutes before

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In the hours before

Special weather statement, Jun 27, 3:25 PM MDT, 17 minutes before

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    <section class="card" role="status" aria-live="polite">
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      <h1 id="headline">This service is currently unavailable.</h1>
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Special weather statement, Jun 27, 3:42 PM MDT, 0 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.
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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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The office that day

Everything else NWS Missoula, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 26, 6:33 PM MDT	Special Weather Statement	MSO	Ravalli	27 min
Jun 26, 6:44 PM MDT	Special Weather Statement	MSO	Ravalli	46 min
Jun 26, 7:36 PM MDT	Special Weather Statement	MSO	Missoula	24 min
Jun 26, 7:50 PM MDT	Special Weather Statement	MSO	Mineral	40 min
Jun 26, 7:57 PM MDT	Special Weather Statement	MSO	Deer Lodge	48 min
Jun 26, 8:16 PM MDT	Special Weather Statement	MSO	Lake	44 min
Jun 26, 8:19 PM MDT	Special Weather Statement	MSO	Powell	41 min
Jun 26, 8:30 PM MDT	Special Weather Statement	MSO	Ravalli	45 min
Jun 26, 8:59 PM MDT	Special Weather Statement	MSO	Silver Bow	16 min
Jun 26, 9:01 PM MDT	Special Weather Statement	MSO	Lincoln	44 min
Jun 26, 9:14 PM MDT	Special Weather Statement	MSO	Ravalli	31 min
Jun 26, 9:17 PM MDT	Special Weather Statement	MSO	Powell	28 min
Jun 26, 10:04 PM MDT	Special Weather Statement	MSO	Lincoln	41 min
Jun 26, 11:45 PM MDT	Special Weather Statement	MSO	Flathead	45 min
Jun 27, 12:19 AM MDT	Special Weather Statement	MSO	Flathead	41 min
Jun 27, 4:19 PM MDT	Special Weather Statement	MSO		26 min
Jun 26, 6:27 PM MDT	Special Weather Statement	MSO	Clearwater	33 min
Jun 27, 3:25 PM MDT	Special Weather Statement	MSO	Lemhi	35 min
Jun 27, 4:28 PM MDT	Special Weather Statement	MSO	Idaho	47 min

Nearby

Special Weather Statements in Idaho, 2017 Every special weather statement in 2017

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.