Alert archive / Texas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 384, NWS Fort Worth, TX

October 6, 2008Henderson County, Navarro County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Oct 6, 2008, 5:55 PM CDT for Henderson County, Navarro County, Texas. It was in force for 65 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: Oct 6, 2008, 5:55 PM CDT (22:55 UTC)
Expired: Oct 6, 2008, 7:00 PM CDT
In force: 65 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

Counties Henderson County, TX, Navarro County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 118 km from the middle of the area, began a volume at 22:59 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

Shreveport, LA (KSHV), launched 12:00Z, 10.9 hours before the alert went out and 230 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: 319 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 640 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 126 m²/s²
0-3 km storm-relative helicity: 185 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

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 Fort Worth, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 6, 3:00 PM CDT, 2 hours 55 minutes earlier.

Area forecast discussion, Oct 6, 3:00 PM CDT, 2 hours 55 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, Oct 6, 4:40 PM CDT, 1 hour 15 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE FORT WORTH TX
440 PM CDT MON OCT 6 2008

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-071200-
MONTAGUE-COOKE-GRAYSON-FANNIN-LAMAR-YOUNG-JACK-WISE-DENTON-COLLIN-
HUNT-DELTA-HOPKINS-STEPHENS-PALO PINTO-PARKER-TARRANT-DALLAS-
ROCKWALL-KAUFMAN-VAN ZANDT-RAINS-EASTLAND-ERATH-HOOD-SOMERVELL-
JOHNSON-ELLIS-HENDERSON-COMANCHE-MILLS-HAMILTON-BOSQUE-HILL-NAVARRO-
FREESTONE-ANDERSON-LAMPASAS-CORYELL-BELL-MCLENNAN-FALLS-LIMESTONE-
LEON-MILAM-ROBERTSON-
440 PM CDT MON OCT 6 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON AND TONIGHT. SOME
STORMS THIS AFTERNOON AND EARLY EVENING MAY BE SEVERE WITH LARGE
HAIL AND WINDS TO 60 MPH. FREQUENT CLOUD TO GROUND LIGHTNING MAY
ALSO ACCOMPANY THE STORMS.

ADDITIONAL STORMS WILL LINGER OVER NORTH TEXAS AFTER MIDNIGHT WITH
CLOUD TO GROUND LIGHTNING THE MAIN HAZARD.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.
ISOLATED STORMS WILL BE POSSIBLE ALONG AND EAST OF A PARIS TO
CENTERVILLE LINE TUESDAY MORNING. OTHERWISE...STORMS WILL BE
POSSIBLE AGAIN SATURDAY AND SUNDAY.

.SPOTTER INFORMATION STATEMENT...
LIMITED SPOTTER ACTIVATION MAY BE REQUESTED SOUTH OF INTERSTATE 20.

In the hours before

Special weather statement, Oct 6, 4:29 PM CDT, 1 hour 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>

Local storm report, Oct 6, 5:08 PM CDT, 47 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>

Special weather statement, Oct 6, 5:14 PM CDT, 41 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>

Special weather statement, Oct 6, 5:18 PM CDT, 37 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
518 PM CDT MON OCT 6 2008

TXZ115-116-062245-
PALO PINTO TX-STEPHENS TX-
518 PM CDT MON OCT 6 2008

...SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHWESTERN PALO PINTO COUNTY
  NORTHEASTERN STEPHENS COUNTY

AT 518 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 17 MILES EAST OF BRECKENRIDGE...MOVING NORTHEAST
AT 23 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE POSSUM KINGDOM STATE PARK.

FREQUENT CLOUD TO GROUND LIGHTNING...VERY HEAVY RAINFALL...PEA-SIZED
HAIL...AND WIND GUSTS TO 40 MPH CAN BE EXPECTED FROM THIS STORM.

LAT...LON 3295 9862 3295 9861 3295 9842 3301 9841
      3301 9832 3288 9825 3273 9865 3289 9875
TIME...MOT...LOC 2218Z 243DEG 20KT 3285 9860

Special weather statement, Oct 6, 5:27 PM CDT, 28 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
527 PM CDT MON OCT 6 2008

TXZ142-062300-
MILLS TX-
527 PM CDT MON OCT 6 2008

...SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHERN MILLS COUNTY

AT 527 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 16 MILES SOUTHEAST OF EARLY...MOVING EAST AT 26
MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE MULLIN.

FREQUENT CLOUD TO GROUND LIGHTNING...BRIEF...VERY HEAVY RAINFALL...
PEA-SIZED HAIL...AND WIND GUSTS TO 40 MPH CAN BE EXPECTED FROM THIS
STORM.

LAT...LON 3158 9884 3161 9879 3167 9877 3172 9862
      3171 9859 3172 9859 3173 9849 3156 9836
      3156 9837 3147 9880
TIME...MOT...LOC 2227Z 253DEG 22KT 3158 9872

Special weather statement, Oct 6, 5:46 PM CDT, 9 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
546 PM CDT MON OCT 6 2008

TXZ115-062315-
STEPHENS TX-
546 PM CDT MON OCT 6 2008

...SIGNIFICANT WEATHER ADVISORY FOR...
  EASTERN STEPHENS COUNTY

AT 546 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 6 MILES SOUTHEAST OF BRECKENRIDGE...MOVING EAST AT 14 MPH.
OTHER STRONG THUNDERSTORMS WERRE NOTED ACROSS THE FAR EASTERN PARTS
OF THE COUNTRY.

PEA-SIZED HAIL AND WIND GUSTS TO 40 MPH CAN BE EXPECTED FROM ANY OF
THESE STORMS.

LAT...LON 3290 9859 3265 9857 3258 9858 3252 9881
      3269 9888
TIME...MOT...LOC 2246Z 250DEG 12KT 3264 9874

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 6, 1:35 AM CDT	Special Weather Statement	FWD	Jack	25 min
Oct 6, 3:50 PM CDT	Special Weather Statement	FWD	Comanche	25 min
Oct 6, 4:13 PM CDT	Severe Thunderstorm Warning	FWD	Comanche, Erath	62 min
Oct 6, 4:29 PM CDT	Special Weather Statement	FWD	Limestone	61 min
Oct 6, 5:13 PM CDT	Areal Flood Advisory	FWD	McLennan	111 min
Oct 6, 5:13 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, Erath, Hamilton	47 min
Oct 6, 5:14 PM CDT	Special Weather Statement	FWD	Eastland	31 min
Oct 6, 5:18 PM CDT	Special Weather Statement	FWD	Palo Pinto	27 min
Oct 6, 5:27 PM CDT	Special Weather Statement	FWD	Mills	33 min
Oct 6, 5:46 PM CDT	Special Weather Statement	FWD	Stephens	29 min
Oct 6, 5:55 PM CDT	Severe Thunderstorm Warning	FWD	Hamilton, Mills	43 min
Oct 6, 6:02 PM CDT	Special Weather Statement	FWD	Somervell	28 min
Oct 6, 6:04 PM CDT	Special Weather Statement	FWD	Palo Pinto	26 min
Oct 6, 6:13 PM CDT	Severe Thunderstorm Warning	FWD	Limestone, McLennan	33 min
Oct 6, 6:21 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, Hill, Johnson	40 min
Oct 6, 6:29 PM CDT	Special Weather Statement	FWD	Parker	31 min
Oct 6, 6:43 PM CDT	Tornado Warning	FWD	Freestone, Limestone	47 min

Nearby

Severe Thunderstorm Warnings in Texas, 2008 Every severe thunderstorm warning in 2008

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.