Alert archive / Texas / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 131, NWS Houston/Galveston, TX

June 13, 2004Walker County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jun 13, 2004, 3:35 PM CDT for Walker County, Texas. It was in force for 40 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 13, 2004, 3:35 PM CDT (20:35 UTC)
Expired
Jun 13, 2004, 4:15 PM CDT
In force
40 min
Issued by
NWS Houston/Galveston, TX
Area
Counties, with a storm outline in the text

County Walker County, TX

The radar

The Houston radar (KHGX), 149 km from the middle of the area, began a volume at 20:38 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, 8.6 hours before the alert went out and 238 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, Lake Charles Mun, LA at 12:00Z on 2004-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1653 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, Lake Charles Mun, LA at 12:00Z on 2004-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.1939Sfc1 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
1653 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
822 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
10 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 13, 2:32 PM CDT, 1 hour 3 minutes earlier.

Area forecast discussion, Jun 13, 2:32 PM CDT, 1 hour 3 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
232 PM CDT SUN JUN 13 2004

.DISCUSSION...
SHOWERS AND THUNDERSTORMS HAVE DEVELOPED THIS AFTERNOON ACROSS
PORTIONS OF SOUTHEAST TEXAS MAINLY ALONG AND NORTH OF I-10 WHERE IT
APPEARS THAT THE BEST LOW LEVEL CONVERGENCE CAN BE FOUND. SOME CELL
TRAINING MAY LEAD TO SOME LOCALIZED 2 TO 3 INCH RAINFALL TOTALS AND
WE COULD GET SOME HAIL BEFORE ACTIVITY BEGINS TO WIND DOWN THIS
EVENING. ALL EYES THEN BEGIN TO TURN TO THE GULF WHERE IT APPEARS
THAT THE TROPICAL DISTURBANCE SOUTHEAST OF BROWNSVILLE IS BECOMING
BETTER ORGANIZED. AN AIRCRAFT IS INVESTIGATING THE SYSTEM THIS
AFTERNOON. MODELS CONTINUE THEIR ADVERTISEMENT OF INCREASING RAIN
CHANCES THROUGH MIDWEEK ACROSS SOUTHEAST TEXAS AS MOISTURE FROM THE
DISTURBANCE BUILDS TO THE NORTH AND NORTHWEST TOWARD THE GULF COAST
AND A MID/UPPER LEVEL LOW CLOSES OFF OFF SOMEWHERE BETWEEN OUR AREA
AND THE CORPUS CHRISTI AREA. A DEEP TROPICAL AIRMASS WITH PRECIP
WATER VALUES ABOVE 2 INCHES WILL FLOW INTO THE WESTERN AND CENTRAL
GULF COAST STATES WHERE EXCESSIVE RAINFALL IS POSSIBLE AS THE
TROPICAL SYSTEM GENERALLY MOVES TO THE NORTH. EXACT LOCATION AND
STRENGTH OF THE TEXAS CLOSED LOW WILL BE OUR MAIN PLAYER IN
DETERMINING WHETHER OR NOT SOME OF OUR AREA GETS HEAVY RAINFALL.
MODELS ARE INDICATING THAT THE CIRCULATION MIGHT END UP TO OUR WEST
WHICH WOULD BRING THE DEEPER MOISTURE INTO OUR AREA. WILL CALL FOR
40% POPS ON MONDAY AND RAISE THEM TO 60% ON TUESDAY DURING THE
SUGGESTED TIME OF BEST GULF INFLOW. IT IS POSSIBLE THAT THE MID/
UPPER LEVEL LOW MEANDERS AROUND THE AREA FOR A COUPLE OF DAYS AND
GIVES US SEVERAL ROUNDS OF HEAVY RAINFALL. OUR HAZARDOUS WEATHER
OUTLOOK ALREADY TALKS ABOUT THE HEAVY RAIN THREAT. FOR NOW...WILL
NOT MENTION THIS IN THE ZONES. THE FORECAST WILL CONTINUE TO CALL FOR
A GRADUAL DRYING OUT AND WARMER TEMPERATURES TOWARD THE END OF THE
WEEK AND NEXT WEEKEND AS RIDGING BEGINS TO REPLACE THIS WEEKS MESS.
41/38
&&

.HGX WATCHES/WARNINGS/ADVISORIES...NONE.
&&

.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL) 74 91 74 89 75 / 20 30 30 50 30
HOUSTON (IAH)         75 90 75 88 75 / 20 40 30 60 30
GALVESTON (GLS)       79 87 79 86 79 / 20 40 30 60 30
&&
Hazardous weather outlook, Jun 13, 7:00 AM CDT, 8 hours 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>

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 6:13 PM CDTSevere Thunderstorm WarningHGXHarris32 min
Jun 13, 6:31 PM CDTSpecial Marine WarningHGX89 min
Jun 13, 6:46 PM CDTFlash Flood WarningHGXHarris119 min

Nearby

Severe Thunderstorm Warnings in Texas, 2004Every severe thunderstorm warning in 2004

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.