Alert archive / Idaho / Special Weather Statements in 2021

Special Weather Statement, NWS Pocatello, ID

May 16, 2021Caribou County, Idaho

NWS Pocatello, ID issued this special weather statement at May 16, 2021, 3:07 PM MDT for Caribou County, Idaho. It was in force for 38 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: May 16, 2021, 3:07 PM MDT (21:07 UTC)
Expired: May 16, 2021, 3:45 PM MDT
In force: 38 min
Issued by: NWS Pocatello, ID

County Caribou County, ID

The nearest sounding before it

Riverton, WY (KRIW), launched 12:00Z, 9.1 hours before the alert went out and 235 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: 7 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 1066 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: -50 m²/s²
0-3 km storm-relative helicity: 20 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 Pocatello, ID wrote its last area forecast discussion before this special weather statement went out at May 16, 1:26 PM MDT, 1 hour 41 minutes earlier.

Area forecast discussion, May 16, 1:26 PM MDT, 1 hour 41 minutes before

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In the hours before

Special weather statement, May 16, 3:07 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.
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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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The office that day

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

Issued	Product	Office	Counties	Lasted
May 16, 3:05 AM MDT	Lake Wind Advisory	PIH	Bannock, Bingham, Power	12 hr
May 16, 3:37 PM MDT	Special Weather Statement	PIH	Bear Lake	38 min
May 16, 4:58 PM MDT	Special Weather Statement	PIH	Bannock, Franklin, Oneida	92 min
May 16, 5:06 PM MDT	Special Weather Statement	PIH	Cassia	84 min

Nearby

Special Weather Statements in Idaho, 2021 Every special weather statement 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.