Alert archive / Texas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 155, NWS San Angelo, TX

May 23, 2017Taylor County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 23, 2017, 7:04 AM CDT for Taylor County, Texas. It was in force for 41 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: May 23, 2017, 7:04 AM CDT (12:04 UTC)
Expired: May 23, 2017, 7:45 AM CDT
In force: 41 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Taylor County, TX

The radar

The Dyess AFB radar (KDYX), 65 km from the middle of the area, began a volume at 12:04 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

Del Rio, TX (KDLF), launched 12:00Z, 0.1 hours before the alert went out and 338 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1036 J/kg
Mixed-layer CIN: -171 J/kg
Mixed-layer LCL: 623 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 131 m²/s²
0-3 km storm-relative helicity: 211 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 23, 6:44 AM CDT, 20 minutes earlier.

Area forecast discussion, May 23, 6:44 AM CDT, 20 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, May 23, 4:39 AM CDT, 2 hours 25 minutes before

Hazardous Weather Outlook
National Weather Service San Angelo TX
439 AM CDT Tue May 23 2017

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-240945-
Fisher-Nolan-Sterling-Coke-Runnels-Irion-Tom Green-Concho-
Crockett-Schleicher-Sutton-Haskell-Throckmorton-Jones-Shackelford-
Taylor-Callahan-Coleman-Brown-McCulloch-San Saba-Menard-Kimble-
Mason-
439 AM CDT Tue May 23 2017

This Hazardous Weather Outlook is for portions of west central
Texas.

.DAY ONE...Today and Tonight

A few thunderstorms are possible today. The main concern will be
dangerous cloud to ground lightning.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

The probability of widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

In the hours before

Special weather statement, May 23, 1:15 AM CDT, 5 hours 49 minutes before

Special Weather Statement
National Weather Service San Angelo TX
115 AM CDT TUE MAY 23 2017

TXZ049-113-114-127-128-230715-
Fisher TX-Shackelford TX-Callahan TX-Jones TX-Taylor TX-
115 AM CDT TUE MAY 23 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN CALLAHAN...JONES...
SOUTHERN SHACKELFORD...EASTERN FISHER AND NORTHEASTERN TAYLOR
COUNTIES UNTIL 215 AM CDT...

At 113 AM CDT, Doppler radar was tracking a line of strong
thunderstorms from near Roby, to Anson, to near Moran, moving south
at 15 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Abilene, Clyde, Anson, Hamlin, Albany, Baird, Merkel, Tye, Roby,
Hawley, Lueders, Moran, Putnam, Sylvester, Noodle, Avoca, Longworth,
Dyess AFB, McCaulley and Neinda.

This includes Interstate 20 between Mile Markers 264 and 323.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3285 9954 3262 9909 3252 9909 3251 9911
      3224 9912 3234 9992 3252 10014 3253 10036
      3281 10046 3294 10037
TIME...MOT...LOC 0613Z 337DEG 15KT 3283 10035

sn

Special weather statement, May 23, 2:12 AM CDT, 4 hours 52 minutes before

Special Weather Statement
National Weather Service San Angelo TX
212 AM CDT TUE MAY 23 2017

TXZ049-230815-
Fisher TX-
212 AM CDT TUE MAY 23 2017

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN FISHER COUNTY UNTIL 315
AM CDT...

At 211 AM CDT, Doppler radar was tracking a strong thunderstorm 9
miles northeast of Rotan, or 13 miles west of Hamlin, moving south at
20 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Roby, McCaulley, Sylvester, Longworth and Hitson.

LAT...LON 3296 10015 3263 10015 3261 10035 3296 10044
TIME...MOT...LOC 0711Z 341DEG 16KT 3295 10035

sn

Special weather statement, May 23, 5:37 AM CDT, 1 hour 27 minutes before

Special Weather Statement
National Weather Service San Angelo TX
537 AM CDT TUE MAY 23 2017

TXZ049-113-127-231130-
Fisher TX-Jones TX-Taylor TX-
537 AM CDT TUE MAY 23 2017

...SIGNIFICANT WEATHER ADVISORY FOR JONES AND FISHER COUNTIES UNTIL
630 AM CDT...

At 536 AM CDT, Doppler radar was tracking a strong thunderstorm near
Rotan, or 17 miles west of Hamlin, moving southeast at 20 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Abilene, Anson, Hamlin, Rotan, Roby, Hawley, Sylvester, Noodle,
Hobbs, Longworth, Hamby, Nugent, Funston, Us-84 Near The
Nolan-Fisher County Line, Hitson, Tuxedo and Lake Fort Phantom Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Very heavy rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3296 9996 3276 9961 3251 9961 3251 10012
      3253 10016 3252 10066 3296 10065
TIME...MOT...LOC 1036Z 299DEG 16KT 3281 10042

sn

Special weather statement, May 23, 6:15 AM CDT, 49 minutes before

Special Weather Statement
National Weather Service San Angelo TX
615 AM CDT TUE MAY 23 2017

TXZ049-054-113-127-231215-
Fisher TX-Nolan TX-Jones TX-Taylor TX-
615 AM CDT TUE MAY 23 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN JONES...NOLAN...SOUTHERN
FISHER AND TAYLOR COUNTIES UNTIL 715 AM CDT...

At 613 AM CDT, Doppler radar was tracking a line of strong
thunderstorms from southwestern Nolan County to near Hawley, moving
southeast at 30 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Abilene, Sweetwater, Roscoe, Blackwell, Nolan, Merkel, Tye, Tuscola,
Hawley, Buffalo Gap, Trent, Lawn, Maryneal, Noodle, Bradshaw, Dyess
AFB, Hylton, Potosi, View and Happy Valley.

This includes Interstate 20 between Mile Markers 229 and 293.

LAT...LON 3262 9961 3209 9963 3209 10066 3260 10065
TIME...MOT...LOC 1113Z 320DEG 27KT 3265 10033

sn

Special weather statement, May 23, 7:01 AM CDT, 3 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>

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 7:10 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones	50 min
May 22, 7:38 PM CDT	Special Weather Statement	SJT	Shackelford	52 min
May 22, 7:48 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Jones, Shackelford, Taylor	42 min
May 22, 8:03 PM CDT	Special Weather Statement	SJT	Crockett	42 min
May 22, 8:21 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Jones, Shackelford, Taylor	39 min
May 22, 8:50 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Coleman, Taylor	40 min
May 22, 9:13 PM CDT	Special Weather Statement	SJT	Sterling	47 min
May 22, 9:26 PM CDT	Special Weather Statement	SJT	Callahan	49 min
May 22, 10:02 PM CDT	Special Weather Statement	SJT	Tom Green	43 min
May 22, 10:36 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Irion, Sterling, Tom Green	39 min
May 22, 11:08 PM CDT	Severe Thunderstorm Warning	SJT	Irion, Sterling, Tom Green	52 min
May 22, 11:18 PM CDT	Special Weather Statement	SJT	Haskell	27 min
May 22, 11:53 PM CDT	Special Weather Statement	SJT	Concho, Runnels, Tom Green	52 min
May 23, 12:02 AM CDT	Special Weather Statement	SJT	Haskell	28 min
May 23, 12:12 AM CDT	Special Weather Statement	SJT	Fisher, Jones	63 min
May 23, 12:29 AM CDT	Special Weather Statement	SJT	Shackelford	61 min
May 23, 12:47 AM CDT	Special Weather Statement	SJT	Kimble, Menard	58 min
May 23, 12:48 AM CDT	Special Weather Statement	SJT	Throckmorton	57 min
May 23, 1:15 AM CDT	Special Weather Statement	SJT	Callahan, Fisher, Jones, Shackelford	60 min
May 23, 2:12 AM CDT	Special Weather Statement	SJT	Fisher	63 min
May 23, 5:37 AM CDT	Special Weather Statement	SJT	Fisher, Jones	53 min
May 23, 6:15 AM CDT	Special Weather Statement	SJT	Nolan, Taylor	60 min
May 23, 6:20 AM CDT	Flash Flood Warning	SJT	Fisher, Jones	3 hr
May 23, 6:50 AM CDT	Areal Flood Advisory	SJT	Callahan, Jones, Shackelford, Taylor	115 min
May 23, 7:01 AM CDT	Special Weather Statement	SJT	Callahan, Taylor	59 min

Nearby

Severe Thunderstorm Warnings in Texas, 2017 Every severe thunderstorm warning in 2017

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.