Alert archive / Colorado / Special Weather Statements in 2021
Special Weather Statement, NWS Goodland, KS
NWS Goodland, KS issued this special weather statement at Aug 20, 2021, 5:40 AM MDT for Phillips County, Colorado. It was in force for 35 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
- Aug 20, 2021, 5:40 AM MDT (11:40 UTC)
- Expired
- Aug 20, 2021, 6:15 AM MDT
- In force
- 35 min
- Issued by
- NWS Goodland, KS
- Hail
- 0.25 in
- Wind
- 40
County Phillips County, CO
The radar
The Goodland radar (KGLD), 134 km from the middle of the area, began a volume at 11:40 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 00:00Z, 11.7 hours before the alert went out and 78 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.
- Mixed-layer CAPE
- 56 J/kg
- Mixed-layer CIN
- -210 J/kg
- Mixed-layer LCL
- 1497 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 222 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
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</html>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 Goodland, KS wrote its last area forecast discussion before this special weather statement went out at Aug 20, 5:38 AM MDT, 2 minutes earlier.
Area forecast discussion, Aug 20, 5:38 AM MDT, 2 minutes before
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</html>Hazardous weather outlook, Aug 20, 4:46 AM MDT, 54 minutes before
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</html>In the hours before
Local storm report, Aug 20, 5:36 AM MDT, 4 minutes before
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</html>Special weather statement, Aug 20, 5:40 AM MDT, 0 minutes before
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<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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</html>The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 6:02 PM MDT | Severe Thunderstorm Warning | GLD | Thomas | 58 min |
| Aug 19, 7:01 PM MDT | Special Weather Statement | GLD | Thomas | 44 min |
| Aug 20, 5:34 AM MDT | Dense Fog Advisory | GLD | Cheyenne, Sherman | 3 hr |
| Aug 19, 6:28 PM MDT | Special Weather Statement | GLD | Phillips | 47 min |
| Aug 19, 6:31 PM MDT | Special Weather Statement | GLD | Yuma | 44 min |
| Aug 19, 6:46 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 44 min |
| Aug 19, 7:17 PM MDT | Special Weather Statement | GLD | Phillips | 28 min |
| Aug 19, 7:31 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 59 min |
| Aug 19, 7:36 PM MDT | Tornado Warning | GLD | Yuma | 24 min |
| Aug 19, 7:50 PM MDT | Flash Flood Warning | GLD | Yuma | 5 hr |
| Aug 19, 8:08 PM MDT | Tornado Warning | GLD | Yuma | 22 min |
| Aug 19, 8:44 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 31 min |
| Aug 19, 9:14 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 46 min |
| Aug 19, 9:49 PM MDT | Special Weather Statement | GLD | Yuma | 26 min |
| Aug 19, 10:48 PM MDT | Special Weather Statement | GLD | Phillips | 42 min |
| Aug 19, 10:51 PM MDT | Special Weather Statement | GLD | Yuma | 39 min |
| Aug 20, 12:31 AM MDT | Areal Flood Warning | GLD | Yuma | 6 hr |
| Aug 19, 8:41 PM MDT | Special Weather Statement | GLD | Dundy | 34 min |
| Aug 19, 9:44 PM MDT | Special Weather Statement | GLD | Dundy | 31 min |
| Aug 19, 10:11 PM MDT | Special Weather Statement | GLD | Dundy | 49 min |
| Aug 19, 10:15 PM MDT | Special Weather Statement | GLD | Dundy | 45 min |
Nearby
Special Weather Statements in Colorado, 2021Every 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; radar from the NEXRAD Level II archive.