Alert archive / Colorado / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 67, NWS Goodland, KS

May 18, 2023Yuma County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at May 18, 2023, 5:06 PM MDT for Yuma County, Colorado. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 18, 2023, 5:06 PM MDT (23:06 UTC)
Expired
May 18, 2023, 6:00 PM MDT
In force
54 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Yuma County, CO

The radar

The Goodland radar (KGLD), 94 km from the middle of the area, began a volume at 23:06 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.1 hours before the alert went out and 199 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 12:00Z on 2023-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 12:00Z on 2023-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
873 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
64 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Goodland, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at May 18, 3:02 PM MDT, 2 hours 4 minutes earlier.

Area forecast discussion, May 18, 3:02 PM MDT, 2 hours 4 minutes before
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Hazardous weather outlook, May 18, 10:06 AM MDT, 7 hours 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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In the hours before

Special weather statement, May 18, 4:49 PM MDT, 17 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">
</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.
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The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 17, 6:52 PM MDTSevere Thunderstorm WarningGLDCheyenne53 min
May 17, 7:10 PM MDTSevere Thunderstorm WarningGLDCheyenne, Rawlins36 min
May 17, 7:42 PM MDTSevere Thunderstorm WarningGLDCheyenne, Sherman63 min
May 17, 8:10 PM MDTSpecial Weather StatementGLDDecatur, Norton, Sheridan35 min
May 17, 8:49 PM MDTSevere Thunderstorm WarningGLDSherman56 min
May 17, 9:34 PM MDTSpecial Weather StatementGLDSherman26 min
May 17, 9:37 PM MDTFlash Flood WarningGLDSherman6 hr
May 18, 2:28 AM MDTFlood WatchGLDCheyenne, Decatur, Rawlins, Sheridan, Sherman, Thomas and 1 more22 hr
May 18, 9:23 AM MDTAreal Flood WarningGLDSherman5 hr
May 18, 4:49 PM MDTSpecial Weather StatementGLDYuma26 min
May 18, 5:14 PM MDTAreal Flood WarningGLDKit Carson3 hr
May 17, 7:24 PM MDTSpecial Weather StatementGLDRed Willow36 min
May 17, 7:56 PM MDTSpecial Weather StatementGLDDundy34 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2023Every severe thunderstorm warning in 2023

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.