Alert archive / Texas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 82, NWS Houston/Galveston, TX

June 6, 2013Houston County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jun 6, 2013, 3:24 PM CDT for Houston County, Texas. It was in force for 36 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: Jun 6, 2013, 3:24 PM CDT (20:24 UTC)
Expired: Jun 6, 2013, 4:00 PM CDT
In force: 36 min
Issued by: NWS Houston/Galveston, TX
Area: Storm-based polygon

County Houston County, TX

The radar

The Shreveport radar (KSHV), 195 km from the middle of the area, began a volume at 20:27 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
Jun 6, 2:28 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 8.4 hours before the alert went out and 204 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: 2315 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 818 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.4

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 Houston/Galveston, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 6, 10:09 AM CDT, 5 hours 15 minutes earlier.

Area forecast discussion, Jun 6, 10:09 AM CDT, 5 hours 15 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, Jun 6, 3:36 AM CDT, 11 hours 48 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
336 AM CDT THU JUN 6 2013

GMZ330-335-TXZ163-164-176>179-195>200-210>214-226-227-235>238-
070845-
AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND-
GALVESTON-GALVESTON BAY-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-
MADISON-MATAGORDA-MATAGORDA BAY-MONTGOMERY-POLK-SAN JACINTO-
TRINITY-WALKER-WALLER-WASHINGTON-WHARTON-
336 AM CDT THU JUN 6 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...TODAY AND TONIGHT
A COLD FRONT WILL MOVE DOWN INTO THE REGION TODAY BRINGING
SCATTERED SHOWERS AND THUNDERSTORMS. ISOLATED STRONG TO SEVERE
THUNDERSTORMS ARE POSSIBLE ALONG THE FRONTAL BOUNDARY THIS
MORNING AND EARLY AFTERNOON FOR AREAS NORTH OF A BRENHAM TO
COLDSPRING LINE. DURING THE AFTERNOON AND EVENING THE FRONT WILL
CONTINUE TO DRIFT SOUTH AND BECOME A FOCUS FOR FURTHER DEVELOPMENT
OF STORMS SOME WHICH MAY BE SEVERE. IN ADDITION THE THREAT OF
LOCALLY HEAVY RAINFALL WILL DEVELOP FROM AROUND COLUMBUS TO CONROE
TO LIBERTY. THE SEABREEZE SHOULD MOVE INLAND FROM THE COASTAL
COUNTIES LATE IN THE AFTERNOON AND EARLY EVENING COLLIDING WITH
THE FRONTAL BOUNDARY AND COULD FOCUS RAINS ALONG THE I-10 CORRIDOR
AND AREAS TO THE SOUTH.

THE PRIMARY THREAT OF SEVERE WEATHER WILL LIKELY BE HAIL THOUGH
GUSTY DAMAGING WINDS WILL BE POSSIBLE. WIDESPREAD RAINFALL OF ONE
QUARTER TO ONE HALF INCH CAN BE EXPECTED WITH ISOLATED HEAVIER
AMOUNTS. DURING THE AFTERNOON AND EARLY EVENING HOURS HEAVY RAIN
ACCUMULATIONS OF 2 TO 4 INCHES WILL BE POSSIBLE IN THE AREA
MENTIONED ABOVE.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED BETWEEN 10 AM AND 8 PM.

In the hours before

Local storm report, Jun 6, 1:00 PM CDT, 2 hours 24 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>

Local storm report, Jun 6, 3:09 PM CDT, 15 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>

Local storm report, Jun 6, 3:18 PM CDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
318 PM CDT THU JUN 06 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0309 PM     TSTM WND DMG     2 W GRAPELAND           31.49N  95.52W
06/06/2013                   HOUSTON            TX   EMERGENCY MNGR

            PEA SIZE HAIL AND TREES DOWN NEAR GRAPELAND.

&&

EVENT NUMBER HGX1300126

PK

Local storm report, Jun 6, 3:22 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
322 PM CDT THU JUN 06 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0312 PM     HAIL             1 NNE GRAPELAND         31.51N  95.48W
06/06/2013  E1.00 INCH       HOUSTON            TX   EMERGENCY MNGR

            QUARTER SIZE HAIL REPORTED IN THE NORTHERN CITY LIMITS
            OF GRAPELAND.

&&

EVENT NUMBER HGX1300127

PK

The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 6, 12:06 PM CDT	Severe Thunderstorm Warning	HGX	Polk	24 min
Jun 6, 12:52 PM CDT	Areal Flood Advisory	HGX	Polk	113 min
Jun 6, 2:28 PM CDT	Severe Thunderstorm Warning	HGX	Houston	47 min
Jun 6, 3:38 PM CDT	Special Weather Statement	HGX	Brazos	22 min
Jun 6, 3:48 PM CDT	Severe Thunderstorm Warning	HGX	Trinity	27 min
Jun 6, 4:09 PM CDT	Severe Thunderstorm Warning	HGX	Houston, Madison, Trinity, Walker	36 min
Jun 6, 4:13 PM CDT	Severe Thunderstorm Warning	HGX	Polk, San Jacinto, Trinity, Walker	47 min
Jun 6, 4:37 PM CDT	Tornado Warning	HGX	Polk	23 min
Jun 6, 4:41 PM CDT	Severe Thunderstorm Warning	HGX	Montgomery, Polk, San Jacinto, Trinity, Walker	64 min
Jun 6, 5:01 PM CDT	Special Weather Statement	HGX	Montgomery	29 min
Jun 6, 5:09 PM CDT	Severe Thunderstorm Warning	HGX	Montgomery, San Jacinto, Walker	36 min
Jun 6, 5:15 PM CDT	Special Weather Statement	HGX	Liberty	45 min
Jun 6, 5:34 PM CDT	Severe Thunderstorm Warning	HGX	Harris, Liberty, Montgomery, Polk, San Jacinto	41 min
Jun 6, 5:55 PM CDT	Severe Thunderstorm Warning	HGX	Liberty	35 min
Jun 6, 6:12 PM CDT	Severe Thunderstorm Warning	HGX	Chambers, Harris, Liberty, Montgomery	33 min
Jun 6, 6:20 PM CDT	Special Weather Statement	HGX	Harris	40 min
Jun 6, 6:28 PM CDT	Severe Thunderstorm Warning	HGX	Fort Bend, Harris, Montgomery, Waller	47 min
Jun 6, 6:34 PM CDT	Severe Thunderstorm Warning	HGX	Chambers, Galveston, Harris, Liberty	41 min
Jun 6, 6:41 PM CDT	Special Weather Statement	HGX	Chambers	49 min
Jun 6, 6:43 PM CDT	Special Marine Warning	HGX		2 hr
Jun 6, 6:59 PM CDT	Special Weather Statement	HGX	Brazoria	46 min

Nearby

Severe Thunderstorm Warnings in Texas, 2013 Every severe thunderstorm warning in 2013

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.