Alert archive / Colorado / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 175, NWS Goodland, KS

June 25, 2015Yuma County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at Jun 25, 2015, 8:24 PM MDT for Yuma County, Colorado. It was in force for 51 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
Jun 25, 2015, 8:24 PM MDT (02:24 UTC)
Expired
Jun 25, 2015, 9:15 PM MDT
In force
51 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Hail
1.0 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 02:26 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 (KDEN), launched 00:00Z, 2.4 hours before the alert went out and 70 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, Denver, CO at 00:00Z on 2015-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 878 joules per kilogram.LCLLFCEL10008507005003002001001 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, Denver, CO at 00:00Z on 2015-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.193958Sfc1 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
878 J/kg
Mixed-layer CIN
-106 J/kg
Mixed-layer LCL
2352 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
169 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.0

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 Jun 25, 8:14 PM MDT, 10 minutes earlier.

Area forecast discussion, Jun 25, 8:14 PM MDT, 10 minutes before
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Hazardous weather outlook, Jun 25, 7:28 PM MDT, 56 minutes before
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In the hours before

Special weather statement, Jun 25, 8:06 PM MDT, 18 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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Special weather statement, Jun 25, 8:17 PM MDT, 7 minutes before
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  <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>
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        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 Goodland, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 25, 9:07 PM MDTSpecial Weather StatementGLDCheyenne38 min
Jun 25, 9:09 PM MDTSevere Thunderstorm WarningGLDCheyenne39 min
Jun 25, 9:47 PM MDTSpecial Weather StatementGLDSherman28 min
Jun 25, 10:11 PM MDTSpecial Weather StatementGLDSherman34 min
Jun 25, 10:21 PM MDTSevere Thunderstorm WarningGLDLogan, Sherman, Thomas, Wallace39 min
Jun 25, 10:58 PM MDTSevere Thunderstorm WarningGLDGreeley, Logan, Wallace, Wichita47 min
Jun 25, 11:14 PM MDTSevere Thunderstorm WarningGLDLogan, Wichita46 min
Jun 25, 11:33 PM MDTSevere Thunderstorm WarningGLDGove, Logan42 min
Jun 25, 11:43 PM MDTTornado WarningGLDGove, Logan15 min
Jun 25, 11:53 PM MDTSevere Thunderstorm WarningGLDWichita37 min
Jun 26, 12:11 AM MDTSevere Thunderstorm WarningGLDGreeley, Wichita49 min
Jun 25, 8:06 PM MDTSpecial Weather StatementGLDYuma24 min
Jun 25, 8:17 PM MDTSpecial Weather StatementGLDCheyenne28 min
Jun 25, 10:21 PM MDTSpecial Weather StatementGLDKit Carson39 min
Jun 25, 10:36 PM MDTSpecial Weather StatementGLDCheyenne24 min
Jun 25, 10:59 PM MDTSpecial Weather StatementGLDCheyenne16 min
Jun 25, 11:08 PM MDTSevere Thunderstorm WarningGLDCheyenne52 min
Jun 25, 11:54 PM MDTSevere Thunderstorm WarningGLDCheyenne19 min
Jun 25, 8:30 PM MDTSpecial Weather StatementGLDDundy30 min
Jun 25, 8:55 PM MDTSevere Thunderstorm WarningGLDDundy, Hitchcock50 min
Jun 25, 9:42 PM MDTSpecial Weather StatementGLDRed Willow48 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2015Every severe thunderstorm warning in 2015

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.