Alert archive / Texas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 143, NWS Amarillo, TX

July 13, 2020Lipscomb County, Texas; Beaver County, Oklahoma

NWS Amarillo, TX issued this severe thunderstorm warning at Jul 13, 2020, 2:06 AM CDT for Lipscomb County, Texas; Beaver County, Oklahoma. 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
Jul 13, 2020, 2:06 AM CDT (07:06 UTC)
Expired
Jul 13, 2020, 3:00 AM CDT
In force
54 min
Issued by
NWS Amarillo, TX
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

Counties Beaver County, OK, Lipscomb County, TX

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 12, 8:32 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 7.1 hours before the alert went out and 146 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 2020-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1825 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 2020-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 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
1825 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
1984 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
113 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.8

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 Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 13, 12:35 AM CDT, 1 hour 31 minutes earlier.

Area forecast discussion, Jul 13, 12:35 AM CDT, 1 hour 31 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 13, 12:50 AM CDT, 1 hour 16 minutes before
Hazardous Weather Outlook
National Weather Service Amarillo TX
1250 AM CDT Mon Jul 13 2020

OKZ001>003-TXZ001>020-317-131800-
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-
1250 AM CDT Mon Jul 13 2020

This Hazardous Weather Outlook is for the Texas and Oklahoma
Panhandles.

.DAY ONE...Tonight.

Thunderstorms are anticipated tonight across the Oklahoma and
Texas Panhandles. Some storms will have the potential to become
strong to severe, with large hail and damaging winds the primary
hazards. A Severe Thunderstorm Watch is in effect for the eastern
Oklahoma and northeastern Texas Panhandles through 3 AM CDT as a
result.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

High temperatures of 105 to 109 degrees are forecast on Monday and
Tuesday across mainly the southern Texas Panhandle, with Heat
Advisories likely during this time period.

Thunderstorms will be possible late Monday afternoon through
Saturday across at least parts of the Oklahoma and Texas Panhandles.
A few storms that develop during this time period will have the
potential to become strong to severe, with large hail and damaging
winds the primary hazards.

.SPOTTER INFORMATION STATEMENT...

Limited spotter activation may become necessary late tonight across
the eastern Oklahoma and northeastern Texas Panhandles. Please
relay any information about observed severe weather to the
National Weather Service in Amarillo while following all local,
state, and CDC guidelines.

Ferguson

In the hours before

Special weather statement, Jul 12, 10:34 PM CDT, 3 hours 32 minutes before
Special Weather Statement
National Weather Service Amarillo TX
1034 PM CDT Sun Jul 12 2020

OKZ001-002-130430-
Cimarron OK-Texas OK-
1034 PM CDT Sun Jul 12 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN TEXAS AND CIMARRON
COUNTIES UNTIL 1130 PM CDT...

At 1034 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles west of Elkhart to near Keyes to near
Boise City. Movement was southeast at 35 mph.

Wind gusts of 50 to 55 mph will be possible with these storms.

Locations impacted include...
Boise City, Keyes, Eva, Griggs, Hough and Sturgis.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take shelter in a sturdy building if threatening weather approaches.

&&

LAT...LON 3699 10190 3687 10152 3659 10187 3650 10212
      3650 10254 3673 10269 3698 10283 3700 10270
TIME...MOT...LOC 0334Z 306DEG 31KT 3698 10207 3684 10228 3673 10256

Guerrero
Special weather statement, Jul 12, 11:36 PM CDT, 2 hours 30 minutes before
Special Weather Statement
National Weather Service Amarillo TX
1136 PM CDT Sun Jul 12 2020

OKZ002-130530-
Texas OK-
1136 PM CDT Sun Jul 12 2020

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL TEXAS COUNTY UNTIL 1230
AM CDT...

At 1136 PM CDT, Doppler radar was tracking a strong thunderstorm 8
miles east of Eva, or 13 miles southeast of Elkhart, moving southeast
at 20 mph.

Dime size hail and wind gusts of 50 to 55 mph will be possible with
this storm.

Locations impacted include...
Guymon, Optima and Hough.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take shelter in a sturdy building if threatening weather approaches.

&&

LAT...LON 3682 10187 3694 10178 3682 10130 3656 10151
TIME...MOT...LOC 0436Z 292DEG 18KT 3684 10176

Guerrero
Special weather statement, Jul 13, 1:25 AM CDT, 41 minutes before
Special Weather Statement
National Weather Service Amarillo TX
125 AM CDT Mon Jul 13 2020

OKZ003-TXZ004-005-130715-
Beaver OK-Ochiltree TX-Lipscomb TX-
125 AM CDT Mon Jul 13 2020

...SIGNIFICANT WEATHER ADVISORY FOR BEAVER...NORTHERN LIPSCOMB AND
NORTHEASTERN OCHILTREE COUNTIES UNTIL 215 AM CDT...

At 124 AM CDT, Doppler radar was tracking a strong thunderstorm 6
miles southeast of Englewood, moving east at 35 mph. Other storms
were located southwest of Forgan, moving east at 35 mph.

Half inch hail and wind gusts up to 50 mph will be possible with
these storms.

Locations impacted include...
Perryton, Beaver, Booker, Forgan, Follett, Darrouzett, Gate, Knowles,
Elmwood, Boyd, Floris, Bryans Corner, Mocane, Slapout and Balko.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take shelter in a sturdy building if threatening weather approaches.

&&

LAT...LON 3645 10000 3639 10036 3635 10087 3684 10084
      3700 10032 3700 10000
TIME...MOT...LOC 0624Z 263DEG 31KT 3696 9994

Ward

The office that day

Everything else NWS Amarillo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 13, 3:26 AM CDTExcessive Heat WarningAMARandall17 hr
Jul 13, 3:26 AM CDTHeat AdvisoryAMAArmstrong, Carson, Deaf Smith, Gray, Hansford, Hartley and 8 more17 hr
Jul 13, 5:39 PM CDTSevere Thunderstorm WarningAMADallam96 min
Jul 12, 10:34 PM CDTSpecial Weather StatementAMACimarron56 min
Jul 12, 11:36 PM CDTSpecial Weather StatementAMATexas54 min
Jul 13, 1:25 AM CDTSpecial Weather StatementAMABeaver50 min
Jul 13, 5:12 PM CDTSpecial Weather StatementAMACimarron63 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.