Alert archive / Texas / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 146, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Jul 14, 2020, 5:35 PM CDT for Dallam County, Sherman County, Texas; Cimarron County, Oklahoma. It was in force for 59 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 14, 2020, 5:35 PM CDT (22:35 UTC)
- Expired
- Jul 14, 2020, 6:34 PM CDT
- In force
- 59 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Cimarron County, OK, Dallam County, TX, Sherman County, TX
The radar
The Amarillo radar (KAMA), 145 km from the middle of the area, began a volume at 22:37 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 14, 3:26 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 10.6 hours before the alert went out and 390 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
- 52 J/kg
- Mixed-layer CIN
- -309 J/kg
- Mixed-layer LCL
- 2723 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 14, 3:01 PM CDT, 2 hours 34 minutes earlier.
Area forecast discussion, Jul 14, 3:01 PM CDT, 2 hours 34 minutes before
<!doctype html>
<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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Jul 14, 3:26 PM CDT, 2 hours 9 minutes before
Hazardous Weather Outlook National Weather Service Amarillo TX 326 PM CDT Tue Jul 14 2020 OKZ001>003-TXZ001>020-317-152030- Cimarron-Texas-Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb- Hartley-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson- Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth- Palo Duro Canyon- 326 PM CDT Tue Jul 14 2020 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE TEXAS AND OKLAHOMA PANHANDLES. .Day One...Tonight. Dangerous heat will continue this evening through sunset, especially in the Palo Duro Canyon. Thunderstorms are possible across the Panhandles this evening. Severe storms are possible with damaging wind gusts the main threat across the southern Panhandles. Both damaging wind and large hail will be possible in the northern combined Panhandles. .Days Two through Seven...Wednesday through Monday. Isolated to scattered thunderstorms will be possible across much of the area on Wednesday mainly in the late afternoon and evening hours. Some storms may become strong to severe. Damaging winds and isolated large hail will be possible. Thursday night and each night there after through Sunday night, there will be a slight chance for thunderstorms mainly in the far northwest combined Panhandles. Some storms may become strong to severe with strong winds being the primary threat. Isolated to scattered thunderstorms will be possible during the late afternoon and early evening Sunday through Tuesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time.
In the hours before
Special weather statement, Jul 14, 5:09 PM CDT, 26 minutes before
Special Weather Statement
National Weather Service Amarillo TX
509 PM CDT Tue Jul 14 2020
OKZ001-TXZ001-142245-
Cimarron OK-Dallam TX-
509 PM CDT Tue Jul 14 2020
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN CIMARRON AND DALLAM
COUNTIES UNTIL 545 PM CDT...
At 508 PM CDT, Doppler radar was tracking a strong thunderstorm 12
miles south of Felt, or 25 miles east of Clayton, moving east at 35
mph.
Up to nickel size hail and wind gusts of up to 55 mph will be
possible with this storm.
Locations impacted include...
Texline, Felt and Conlen.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take shelter in a sturdy building if threatening weather approaches.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 3650 10304 3650 10300 3664 10300 3674 10217
3612 10216 3632 10304
TIME...MOT...LOC 2208Z 269DEG 30KT 3639 10273
FergusonThe office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 7:10 PM CDT | Severe Thunderstorm Warning | AMA | Dallam, Sherman | 54 min |
| Jul 13, 7:40 PM CDT | Special Weather Statement | AMA | Moore | 35 min |
| Jul 13, 8:19 PM CDT | Special Weather Statement | AMA | Carson | 41 min |
| Jul 13, 8:23 PM CDT | Special Weather Statement | AMA | Carson | 37 min |
| Jul 13, 8:53 PM CDT | Special Weather Statement | AMA | Hansford | 37 min |
| Jul 14, 3:42 AM CDT | Excessive Heat Warning | AMA | Randall | 16 hr |
| Jul 14, 3:42 AM CDT | Heat Advisory | AMA | Armstrong, Carson, Collingsworth, Deaf Smith, Donley, Gray and 9 more | 16 hr |
| Jul 14, 5:09 PM CDT | Special Weather Statement | AMA | Dallam | 36 min |
| Jul 14, 6:26 PM CDT | Special Weather Statement | AMA | Dallam | 34 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2020Severe Thunderstorm Warnings in Oklahoma, 2020Every severe thunderstorm warning in 2020
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.