Alert archive / Colorado / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 174, NWS Denver/Boulder, CO

July 6, 2024Phillips County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 6, 2024, 6:19 PM MDT for Phillips County, Colorado. It was in force for 26 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
Jul 6, 2024, 6:19 PM MDT (00:19 UTC)
Expired
Jul 6, 2024, 6:45 PM MDT
In force
26 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

County Phillips County, CO

The radar

The Goodland radar (KGLD), 148 km from the middle of the area, began a volume at 00:22 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

Dodge City, (KDDC), launched 00:00Z, 0.3 hours before the alert went out and 379 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, Dodge City, at 00:00Z on 2024-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 262 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, Dodge City, at 00:00Z on 2024-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 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
262 J/kg
Mixed-layer CIN
-156 J/kg
Mixed-layer LCL
2484 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
234 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.0

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 Denver/Boulder, CO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 6, 2:04 PM MDT, 4 hours 15 minutes earlier.

Area forecast discussion, Jul 6, 2:04 PM MDT, 4 hours 15 minutes before
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Hazardous weather outlook, Jul 6, 10:18 AM MDT, 8 hours 1 minute before
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      <h1 id="headline">This service is currently unavailable.</h1>
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In the hours before

Special weather statement, Jul 6, 6:07 PM MDT, 12 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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        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 Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 6, 6:07 PM MDTSpecial Weather StatementBOUPhillips38 min
Jul 6, 8:45 PM MDTSpecial Weather StatementBOUWeld45 min
Jul 7, 2:02 PM MDTSpecial Weather StatementBOUWeld43 min
Jul 7, 2:23 PM MDTSevere Thunderstorm WarningBOUMorgan, Weld37 min
Jul 7, 2:47 PM MDTSevere Thunderstorm WarningBOUAdams, Morgan, Washington28 min
Jul 7, 2:53 PM MDTSpecial Weather StatementBOUBoulder52 min
Jul 7, 3:11 PM MDTSpecial Weather StatementBOUMorgan49 min
Jul 7, 3:38 PM MDTSpecial Weather StatementBOULincoln52 min
Jul 7, 3:39 PM MDTSpecial Weather StatementBOUWashington36 min
Jul 7, 4:03 PM MDTSevere Thunderstorm WarningBOULincoln, Washington42 min
Jul 7, 4:10 PM MDTSpecial Weather StatementBOUAdams35 min
Jul 7, 4:14 PM MDTSevere Thunderstorm WarningBOULincoln27 min
Jul 7, 5:01 PM MDTSpecial Weather StatementBOUArapahoe29 min
Jul 7, 5:37 PM MDTSevere Thunderstorm WarningBOUElbert23 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2024Every severe thunderstorm warning in 2024

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.