Alert archive / Montana / Lake Wind Advisories in 2021

Lake Wind Advisory 16, NWS Glasgow, MT

June 9, 20215 counties in Montana

NWS Glasgow, MT issued this lake wind advisory at Jun 9, 2021, 3:44 PM MDT for 5 counties in Montana. It took effect at Jun 10, 2021, 3:00 AM MDT. It was in force for 40 hr.

The area

The counties it named.

The facts

Issued: Jun 9, 2021, 3:44 PM MDT (21:44 UTC)
In effect from: Jun 10, 2021, 3:00 AM MDT
Expired: Jun 11, 2021, 7:00 PM MDT
In force: 40 hr
Issued by: NWS Glasgow, MT

Counties Garfield County, MT, McCone County, MT, Petroleum County, MT, Phillips County, MT, Valley County, MT

The radar

The Glasgow radar (KGGW), 64 km from the middle of the area, began a volume at 21:42 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, 9.7 hours before the alert went out and 262 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: 910 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 147 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Glasgow, MT wrote its last area forecast discussion before this lake wind advisory went out at Jun 9, 11:20 AM MDT, 4 hours 24 minutes earlier.

Area forecast discussion, Jun 9, 11:20 AM MDT, 4 hours 24 minutes before

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In the hours before

Local storm report, Jun 9, 1:49 PM MDT, 1 hour 55 minutes before

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Local storm report, Jun 9, 2:41 PM MDT, 1 hour 3 minutes before

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Local storm report, Jun 9, 2:45 PM MDT, 59 minutes before

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Local storm report, Jun 9, 2:49 PM MDT, 55 minutes before

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      <p id="message2">
        Please try again in a few minutes.
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Local storm report, Jun 9, 3:26 PM MDT, 18 minutes before

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      <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, Jun 9, 3:30 PM MDT, 14 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.
      </p>
    </section>
  </main>
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</body>
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 6:00 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Valley	60 min
Jun 8, 6:07 PM MDT	Areal Flood Advisory	GGW	Wibaux	112 min
Jun 8, 6:16 PM MDT	Severe Thunderstorm Warning	GGW	Phillips, Valley	59 min
Jun 8, 6:19 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Valley	56 min
Jun 8, 6:24 PM MDT	Severe Thunderstorm Warning	GGW	Phillips	66 min
Jun 8, 6:34 PM MDT	Severe Thunderstorm Warning	GGW	Wibaux	26 min
Jun 8, 6:38 PM MDT	Severe Thunderstorm Warning	GGW	McCone, Roosevelt, Valley	67 min
Jun 8, 6:50 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Valley	42 min
Jun 8, 6:53 PM MDT	Severe Thunderstorm Warning	GGW	Roosevelt, Sheridan	56 min
Jun 8, 6:58 PM MDT	Severe Thunderstorm Warning	GGW	Wibaux	21 min
Jun 8, 7:00 PM MDT	Special Weather Statement	GGW	Phillips	90 min
Jun 8, 7:06 PM MDT	Severe Thunderstorm Warning	GGW	Phillips, Valley	24 min
Jun 8, 7:12 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone	63 min
Jun 8, 7:20 PM MDT	Severe Thunderstorm Warning	GGW	McCone, Roosevelt, Valley	55 min
Jun 8, 7:31 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Roosevelt, Valley	59 min
Jun 8, 7:45 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Prairie	45 min
Jun 8, 7:54 PM MDT	Special Weather Statement	GGW	Valley	96 min
Jun 8, 8:07 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, McCone, Roosevelt	53 min
Jun 8, 8:20 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Garfield, McCone, Prairie, Richland, Valley and 1 more	55 min
Jun 8, 8:26 PM MDT	Flash Flood Warning	GGW	Roosevelt	118 min
Jun 8, 8:57 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Roosevelt, Sheridan	27 min
Jun 8, 9:07 PM MDT	Areal Flood Advisory	GGW	Roosevelt	106 min
Jun 8, 9:23 PM MDT	Special Weather Statement	GGW	Dawson, Richland, Roosevelt	67 min
Jun 8, 9:53 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Richland, Roosevelt, Wibaux	53 min
Jun 8, 10:53 PM MDT	Special Weather Statement	GGW	Richland	67 min
Jun 9, 3:45 PM MDT	Fire Weather Watch	GGW	Dawson, Garfield, McCone, Petroleum, Prairie, Richland and 1 more	12 hr

Nearby

Lake Wind Advisories in Montana, 2021 Every lake wind advisory in 2021

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.