Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 136, NWS Shreveport, LA

April 7, 2000Harrison County, Texas; Caddo Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Apr 7, 2000, 9:18 PM CDT for Harrison County, Texas; Caddo Parish, Louisiana. It was in force for 42 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 7, 2000, 9:18 PM CDT (02:18 UTC)
Expired: Apr 7, 2000, 10:00 PM CDT
In force: 42 min
Issued by: NWS Shreveport, LA
Area: Whole counties

Counties Caddo Parish, LA, Harrison County, TX

What was reported inside it

Time	Report	Where	Remark
Apr 7, 9:25 PM CDT	Hail 0.75	Shreveport, LA
Apr 7, 9:30 PM CDT	Thunderstorm Wind 52 E	Shreveport, LA	Power lines down in southeast Shreveport.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 7, 6:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 7, 8:30 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 2.3 hours before the alert went out and 37 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: 1646 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 1454 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 100 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.8

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 7, 9:00 PM CDT, 18 minutes earlier.

Area forecast discussion, Apr 7, 9:00 PM CDT, 18 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

Local storm report, Apr 7, 7:50 PM CDT, 1 hour 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
750 PM CST FRI APR 07 2000

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....PARISH/COUNTY LOCATION....

0550 PM    1 S BROKEN BOW            OK   1 INCH HAIL
04/07/00   MCCURTAIN                      REPORT FROM LAW ENFORCEMENT

0615 PM    6 E HAYWORTH              OK   1 INCH HAIL
04/07/00   MCCURTAIN                      OCCURRED IN THE SHINEWELL COMMUNITY
                                          REPORT FROM HAYWORTH F.D. VIA
                                          SHINEWELL F.D.

0655 PM    FOREMAN                   AR   1.5 INCH HAIL    n
04/07/00   LITTLE RIVER                   REPORT FROM HAM RADIO OPERATOR

15

Local storm report, Apr 7, 7:50 PM CDT, 1 hour 28 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE SHREVEPORT LA
750 PM CDT FRI APR 07 2000

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....PARISH/COUNTY LOCATION....

0550 PM    1 S BROKEN BOW            OK   1 INCH HAIL
04/07/00   MCCURTAIN                      REPORT FROM LAW ENFORCEMENT

0615 PM    6 E HAYWORTH              OK   1 INCH HAIL
04/07/00   MCCURTAIN                      OCCURRED IN THE SHINEWELL COMMUNITY
                                          REPORT FROM HAYWORTH F.D. VIA
                                          SHINEWELL F.D.

0655 PM    FOREMAN                   AR   1.5 INCH HAIL
04/07/00   LITTLE RIVER                   REPORT FROM HAM RADIO OPERATOR

CORRECT CST TO CDT

Local storm report, Apr 7, 8:50 PM CDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
750 PM CST FRI APR 07 2000

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....PARISH/COUNTY LOCATION....

0550 PM    1 S BROKEN BOW            OK   1 INCH HAIL
04/07/00   MCCURTAIN                      REPORT FROM LAW ENFORCEMENT

0615 PM    6 E HAYWORTH              OK   1 INCH HAIL
04/07/00   MCCURTAIN                      OCCURRED IN THE SHINEWELL COMMUNITY
                                          REPORT FROM HAYWORTH F.D. VIA
                                          SHINEWELL F.D.

0655 PM    FOREMAN                   AR   1.5 INCH HAIL
04/07/00   LITTLE RIVER                   REPORT FROM HAM RADIO OPERATOR

15

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 7, 7:12 PM CDT	Severe Thunderstorm Warning	SHV	Smith, Wood	63 min
Apr 7, 7:14 PM CDT	Severe Thunderstorm Warning	SHV	Bowie, Cass	61 min
Apr 7, 8:18 PM CDT	Severe Thunderstorm Warning	SHV	Gregg, Rusk, Smith	57 min
Apr 7, 8:18 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee	57 min
Apr 7, 8:43 PM CDT	Tornado Warning	SHV	Cherokee, Nacogdoches, Rusk	62 min
Apr 7, 9:45 PM CDT	Severe Thunderstorm Warning	SHV	Nacogdoches	60 min
Apr 7, 10:24 PM CDT	Severe Thunderstorm Warning	SHV	Angelina	51 min
Apr 7, 8:17 PM CDT	Severe Thunderstorm Warning	SHV	Caddo	28 min
Apr 7, 8:48 PM CDT	Severe Thunderstorm Warning	SHV	Bossier	42 min
Apr 7, 8:51 PM CDT	Severe Thunderstorm Warning	SHV	Claiborne, Webster	54 min
Apr 7, 9:52 PM CDT	Severe Thunderstorm Warning	SHV	De Soto	38 min
Apr 7, 10:55 PM CDT	Severe Thunderstorm Warning	SHV	Sabine	50 min
Apr 7, 8:04 PM CDT	Severe Thunderstorm Warning	SHV	Columbia	41 min

Nearby

Severe Thunderstorm Warnings in Texas, 2000 Severe Thunderstorm Warnings in Louisiana, 2000 Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.