Alert archive / Texas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 169, NWS San Angelo, TX

May 17, 2016Irion County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 17, 2016, 3:00 PM CDT for Irion County, Texas. It was in force for 60 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 17, 2016, 3:00 PM CDT (20:00 UTC)
Expired: May 17, 2016, 4:00 PM CDT
In force: 60 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Irion County, TX

The radar

The San Angelo radar (KSJT), 47 km from the middle of the area, began a volume at 20:03 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
May 17, 2:25 PM CDT	Severe Thunderstorm Watch	SPC	13 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 8.0 hours before the alert went out and 136 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: 353 J/kg
Mixed-layer CIN: -286 J/kg
Mixed-layer LCL: 2197 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 153 m²/s²
0-3 km storm-relative helicity: 138 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 17, 12:34 PM CDT, 2 hours 26 minutes earlier.

Area forecast discussion, May 17, 12:34 PM CDT, 2 hours 26 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 17, 5:06 AM CDT, 9 hours 54 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>

In the hours before

Special weather statement, May 17, 1:57 PM CDT, 1 hour 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
157 PM CDT TUE MAY 17 2016

TXZ076-171930-
CROCKETT TX-
157 PM CDT TUE MAY 17 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN CROCKETT COUNTY
UNTIL 230 PM CDT...

AT 157 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 16 MILES NORTHWEST
OF OZONA...MOVING NORTHEAST AT 20 MPH.

NICKEL SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THIS STORM.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF NORTHEASTERN
CROCKETT COUNTY.

LAT...LON 3073 10143 3078 10156 3105 10143 3094 10114
TIME...MOT...LOC 1857Z 225DEG 19KT 3081 10146

Special weather statement, May 17, 2:25 PM CDT, 35 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
225 PM CDT TUE MAY 17 2016

TXZ071-172000-
IRION TX-
225 PM CDT TUE MAY 17 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN IRION COUNTY UNTIL
300 PM CDT...

AT 224 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES NORTHEAST
OF BARNHART...OR 19 MILES WEST OF MERTZON...MOVING NORTHEAST AT 20
MPH.

HALF INCH HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF SOUTHWESTERN IRION
COUNTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
WEST CENTRAL TEXAS.

LAT...LON 3112 10112 3115 10120 3133 10113 3127 10093
TIME...MOT...LOC 1924Z 225DEG 17KT 3117 10113

Special weather statement, May 17, 2:58 PM CDT, 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
258 PM CDT TUE MAY 17 2016

TXZ071-172030-
IRION TX-
258 PM CDT TUE MAY 17 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN IRION COUNTY UNTIL
330 PM CDT...

AT 256 PM CDT...STRONG THUNDERSTORMS WERE LOCATED 7 MILES NORTH AND
NORTHEAST OF BARNHART...OR 17 MILES WEST OF MERTZON...MOVING
NORTHEAST AT 15 MPH.

NICKEL SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THESE STORMS.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF NORTHWESTERN IRION
COUNTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
WEST CENTRAL TEXAS.

LAT...LON 3117 10127 3153 10126 3153 10078 3152 10075
      3116 10104
TIME...MOT...LOC 1956Z 224DEG 15KT 3122 10112

The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 1:57 PM CDT	Special Weather Statement	SJT	Crockett	33 min
May 17, 2:00 PM CDT	Severe Thunderstorm Warning	SJT	Crockett	48 min
May 17, 2:25 PM CDT	Special Weather Statement	SJT	Irion	35 min
May 17, 2:58 PM CDT	Special Weather Statement	SJT	Irion	32 min
May 17, 3:49 PM CDT	Severe Thunderstorm Warning	SJT	Irion, Sterling, Tom Green	40 min
May 17, 3:50 PM CDT	Flash Flood Warning	SJT	Irion	3 hr
May 17, 3:54 PM CDT	Severe Thunderstorm Warning	SJT	Irion	66 min
May 17, 4:24 PM CDT	Severe Thunderstorm Warning	SJT	Crockett, Irion	66 min
May 17, 4:48 PM CDT	Areal Flood Advisory	SJT	Irion	117 min
May 17, 4:51 PM CDT	Severe Thunderstorm Warning	SJT	Irion, Tom Green	54 min
May 17, 5:05 PM CDT	Tornado Warning	SJT	Crockett, Schleicher	40 min
May 17, 5:15 PM CDT	Special Weather Statement	SJT	Upton	45 min
May 17, 5:25 PM CDT	Special Weather Statement	SJT	Schleicher	65 min
May 17, 5:36 PM CDT	Severe Thunderstorm Warning	SJT	Crockett	54 min
May 17, 5:40 PM CDT	Severe Thunderstorm Warning	SJT	Crockett, Schleicher, Tom Green	65 min
May 17, 5:46 PM CDT	Special Weather Statement	SJT	Sutton	29 min
May 17, 5:50 PM CDT	Areal Flood Advisory	SJT	Crockett	3 hr
May 17, 5:54 PM CDT	Severe Thunderstorm Warning	SJT	Crockett	51 min
May 17, 6:18 PM CDT	Severe Thunderstorm Warning	SJT	Crockett, Schleicher, Sutton	57 min
May 17, 6:22 PM CDT	Special Weather Statement	SJT	Crockett	23 min
May 17, 6:23 PM CDT	Special Weather Statement	SJT	Crockett	67 min
May 17, 6:42 PM CDT	Areal Flood Advisory	SJT	Schleicher	3 hr
May 17, 6:42 PM CDT	Severe Thunderstorm Warning	SJT	Menard, Schleicher	63 min
May 17, 6:57 PM CDT	Special Weather Statement	SJT	Sutton	63 min

Nearby

Severe Thunderstorm Warnings in Texas, 2016 Every severe thunderstorm warning in 2016

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.