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Wind Chill Advisory 5, NWS Cheyenne, WY

February 3, 20225 counties in Wyoming

NWS Cheyenne, WY issued this wind chill advisory at Feb 3, 2022, 1:04 PM MST for 5 counties in Wyoming. It took effect at Feb 3, 2022, 6:00 PM MST. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued: Feb 3, 2022, 1:04 PM MST (20:04 UTC)
In effect from: Feb 3, 2022, 6:00 PM MST
Expired: Feb 4, 2022, 7:31 AM MST
In force: 14 hr
Issued by: NWS Cheyenne, WY

Counties Albany County, WY, Carbon County, WY, Converse County, WY, Laramie County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 109 km from the middle of the area, began a volume at 20:04 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

Denver, CO (KDNR), launched 12:00Z, 8.1 hours before the alert went out and 303 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: 858 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 67 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 wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cheyenne, WY wrote its last area forecast discussion before this wind chill advisory went out at Feb 3, 10:23 AM MST, 2 hours 41 minutes earlier.

Area forecast discussion, Feb 3, 10:23 AM MST, 2 hours 41 minutes before

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Hazardous weather outlook, Feb 3, 4:22 AM MST, 8 hours 42 minutes before

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In the hours before

Local storm report, Feb 3, 11:00 AM MST, 2 hours 4 minutes before

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<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">
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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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      <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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The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 3, 12:59 PM MST	High Wind Watch	CYS	Albany, Carbon, Goshen, Laramie, Platte	31 hr

Nearby

Wind Chill Advisories in Wyoming, 2022 Every wind chill advisory in 2022

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.