Alert archive / Texas / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 43, NWS Houston/Galveston, TX

June 26, 2014Chambers County, Harris County, Liberty County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jun 26, 2014, 3:06 PM CDT for Chambers County, Harris County, Liberty County, Texas. It was in force for 39 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 26, 2014, 3:06 PM CDT (20:06 UTC)
Expired: Jun 26, 2014, 3:45 PM CDT
In force: 39 min
Issued by: NWS Houston/Galveston, TX
Area: Storm-based polygon

Counties Chambers County, TX, Harris County, TX, Liberty County, TX

The radar

The Houston radar (KHGX), 50 km from the middle of the area, began a volume at 20:06 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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.1 hours before the alert went out and 171 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: 1030 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 892 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 143 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 Houston/Galveston, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 26, 10:22 AM CDT, 4 hours 44 minutes earlier.

Area forecast discussion, Jun 26, 10:22 AM CDT, 4 hours 44 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 26, 4:54 AM CDT, 10 hours 12 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
454 AM CDT THU JUN 26 2014

GMZ330-335-350-355-TXZ163-164-176>179-195>200-210>214-226-227-
235>238-271000-
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-
WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL OUT 20 NM-
WATERS FROM HIGH ISLAND TO FREEPORT OUT 20 NM-WHARTON-
454 AM CDT THU JUN 26 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...TODAY AND TONIGHT
SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS PORTIONS OF
SOUTHEAST TEXAS TODAY. WHILE RAINFALL AMOUNTS FOR MOST LOCATIONS
WILL BE LESS THAN HALF AN INCH...LOCALLY HEAVY DOWNPOURS COULD
PRODUCE RAINFALL AMOUNTS OF 1 TO 2 INCHES OR GREATER...WITH
LOCALIZED FLOODING POSSIBLE...ESPECIALLY IN POOR DRAINAGE AND
URBAN AREAS. THE GREATEST CHANCE OF HEAVY RAIN WILL BE NEAR THE
COAST.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
SCATTERED SHOWERS AND STORMS WILL OCCUR FRIDAY ALTHOUGH NOT
EXPECTED TO BE SEVERE. SOME HIGHER SURF AND ELEVATED RIP CURRENT
THREAT WILL BE POSSIBLE FRIDAY AND SATURDAY AT THE GULF BEACHES.
OTHERWISE NO WIDESPREAD HAZARDOUS WEATHER IS EXPECTED.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

46

In the hours before

Special weather statement, Jun 26, 12:22 PM CDT, 2 hours 44 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1222 PM CDT THU JUN 26 2014

TXZ177-178-198-199-261830-
GRIMES TX-SAN JACINTO TX-WALKER TX-MONTGOMERY TX-
1222 PM CDT THU JUN 26 2014

...SIGNIFICANT WEATHER ADVISORY FOR MONTGOMERY...SOUTHERN
WALKER...SOUTHEASTERN GRIMES...NORTHWESTERN LIBERTY AND SOUTHWESTERN
SAN JACINTO COUNTIES UNTIL 130 PM CDT...

AT 1221 PM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR TODD MISSION TO 6
MILES SOUTH OF LAKE CONROE DAM TO SPRING...AND MOVING NORTH AT 20 TO
25 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
CONROE...HUNTSVILLE...WILLIS...PINEHURST...THE WOODLANDS...SPRING...
OAK RIDGE NORTH...PANORAMA VILLAGE...SHENANDOAH...MAGNOLIA...CUT AND
SHOOT...NEW WAVERLY...MONTGOMERY...ANDERSON...WOODLOCH...TODD
MISSION...PORTER HEIGHTS...HUNTSVILLE STATE PARK...LAKE CONROE DAM
AND THE WOODLANDS PAVILLION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3037 9511 3035 9517 3031 9515 3006 9534
      3011 9542 3011 9549 3015 9550 3022 9560
      3020 9580 3025 9581 3024 9598 3067 9602
      3076 9543 3045 9505
TIME...MOT...LOC 1721Z 195DEG 19KT 3025 9589 3027 9559 3008 9537

Special weather statement, Jun 26, 1:43 PM CDT, 1 hour 23 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 26, 2:28 PM CDT, 38 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 26, 2:31 PM CDT, 35 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 26, 2:55 PM CDT, 11 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 26, 3:02 PM CDT, 4 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 Houston/Galveston, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 26, 7:44 AM CDT	Special Weather Statement	HGX	Matagorda	46 min
Jun 26, 7:47 AM CDT	Tornado Warning	HGX	Matagorda	28 min
Jun 26, 10:14 AM CDT	Areal Flood Advisory	HGX	Brazoria, Fort Bend, Matagorda	2 hr
Jun 26, 11:15 AM CDT	Special Weather Statement	HGX	Grimes, Montgomery, Waller	75 min
Jun 26, 12:12 PM CDT	Areal Flood Advisory	HGX	Brazoria, Matagorda	2 hr
Jun 26, 12:22 PM CDT	Special Weather Statement	HGX	Grimes, Montgomery	68 min
Jun 26, 12:47 PM CDT	Special Marine Warning	HGX		58 min
Jun 26, 1:43 PM CDT	Special Weather Statement	HGX	Liberty	62 min
Jun 26, 2:20 PM CDT	Tornado Warning	HGX	Galveston	25 min
Jun 26, 2:25 PM CDT	Special Marine Warning	HGX		65 min

Nearby

Severe Thunderstorm Warnings in Texas, 2014 Every severe thunderstorm warning in 2014

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.