Alert archive / Louisiana / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 9, NWS Shreveport, LA

January 1, 1999Bossier Parish, Caddo Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Jan 1, 1999, 10:11 PM CST for Bossier Parish, Caddo Parish, Louisiana. It was in force for 59 min. 6 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: Jan 1, 1999, 10:11 PM CST (04:11 UTC)
Expired: Jan 1, 1999, 11:10 PM CST
In force: 59 min
Issued by: NWS Shreveport, LA
Area: Whole counties

Counties Bossier Parish, LA, Caddo Parish, LA

What was reported inside it

Time	Report	Where	Remark
Jan 1, 10:20 PM CST	Thunderstorm Wind 52	Keithville, LA	Numerous trees down.
Jan 1, 10:25 PM CST	Thunderstorm Wind 61	Shreveport, LA	Numerous trees down on Tiffin Court with numerous roofs damaged. Several trees also toppled in the Madison Park area.
Jan 1, 10:26 PM CST	Tornado F2	Shreveport Rgnl Arpt, LA	Damage path consisted of numerous homes with roofs partially blown off, several structures collapsed, a building with a brick wall blew down, several cars were blown off the road and overturned, and numerous trees snapped or fell. The reported injury was mino
Jan 1, 10:36 PM CST	Tornado F1	Sligo, LA	Moderate damage occurred to a storage building as the tornado plowed right through the middle of the shed leaving both ends intact. A tin roof was detached and deposited 1/4 mile away. Several aluminum buildings were also blown apart. Numerous snapped and f
Jan 1, 10:47 PM CST	Thunderstorm Wind 52	Koran, LA
Jan 1, 11:02 PM CST	Tornado F2	Koran, LA	Tornado formed along a squall line notch, in the comma head. Damage path consisted of moderate damage to two homes were trees penetrated the roof. One mobile home completely destroyed. Numerous snapped and fallen trees of three to four feet in diameter. Th

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
Jan 1, 7:30 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 4.2 hours before the alert went out and 17 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: 76 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 533 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 374 m²/s²
0-3 km storm-relative helicity: 391 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 Jan 1, 8:55 PM CST, 1 hour 16 minutes earlier.

Area forecast discussion, Jan 1, 8:55 PM CST, 1 hour 16 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
855 PM CST FRI JAN 1 1999

CURRENTLY A LINE OF STRONG TO SEVERE THUNDERSTORMS EXTENDS FROM LINDEN
SOUTH TO LONGVIEW TO NEAR RUSK TEXAS...THIS LINE IS MOVING EAST AT
ABOUT 30 MPH.  A TORNADO WATCH CONTINUES FOR MUCH OF EAST TEXAS AND
NORTHWEST LOUISIANA TIL 100 AM.  RADAR HAS SHOWN GOOD TORNADO
SIGNATURES BUT NONE HAVE BEEN REPORTED YET...ONLY PEA SIZE HAIL
REPORTED SO FAR...BUT WINDS OF 60 TO 70 MPH HAVE CAUSED DAMAGE IN
NUMEROUS PARTS OF NORTHEAST TEXAS.   LOOKS LIKE WE WILL CHASE WEATHER
THE REST OF THE EVENING AND INTO THE NIGHT AS THIS SYSTEM CONTINUES
TO MOVE EAST. CURRENT FORECAST LOOKS VALID.

ELEVEN

In the hours before

Local storm report, Jan 1, 4:44 PM CST, 5 hours 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
444 PM CST FRI JAN 01 1999

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

0320 PM    3 SE DIBOLL               TX   NON-QUALIFIED EVENT
01/01/99   ANGELINA                       FUNNEL CLOUD REPORTED BY
                                          SHERIFFS DEPUTY.

0338 PM    3 S LUFKIN                TX   60 MPH TSTM GUST
01/01/99   ANGELINA                       REPORTED BY STORM SPOTTER.

0345 PM    LUFKIN                    TX   .88 INCH HAIL
01/01/99   ANGELINA                       REPORTED AT FIRE STATION
                                          ON EAST SIDE OF LUFKIN.

0410 PM    5 SW BELMONT              LA   NON-QUALIFIED EVENT
01/01/99   SABINE                         FUNNEL CLOUD REPORTED BY
                                          SHERIFFS DEPUTY.

18

Local storm report, Jan 1, 9:15 PM CST, 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
915 PM CST FRI JAN 01 1999

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

0745 PM    10 NE MT PLEASANT         TX   60 MPH TSTM GUST
01/01/99   TITUS                          REPORTED BY SHERIFFS
                                          OFFICE.

0740 PM    2 SW LINDALE              TX   70 MPH TSTM GUST
01/01/99   SMITH                          3 W OF HWY 69.  REPORTED
                                          BY SHERIFFS OFFICE.

0845 PM    3 S KILGORE               TX   60 MPH TSTM GUST
01/01/99   RUSK                           POWER POLE BLOWN DOWN.
                                          REPORTED BY SHERIFFS
                                          OFFICE.
.
09

Local storm report, Jan 1, 9:25 PM CST, 46 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 Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 1, 7:19 PM CST	Severe Thunderstorm Warning	SHV	Titus	36 min
Jan 1, 7:30 PM CST	Tornado Warning	SHV	Smith	30 min
Jan 1, 8:20 PM CST	Severe Thunderstorm Warning	SHV	Smith	30 min
Jan 1, 8:28 PM CST	Tornado Warning	SHV	Upshur	32 min
Jan 1, 8:35 PM CST	Severe Thunderstorm Warning	SHV	Cherokee, Rusk	45 min
Jan 1, 8:35 PM CST	Severe Thunderstorm Warning	SHV	Gregg	45 min
Jan 1, 8:56 PM CST	Severe Thunderstorm Warning	SHV	Harrison	44 min
Jan 1, 9:53 PM CST	Tornado Warning	SHV	Panola	32 min
Jan 1, 10:43 PM CST	Severe Thunderstorm Warning	SHV	Nacogdoches	62 min
Jan 1, 10:23 PM CST	Severe Thunderstorm Warning	SHV	De Soto	47 min
Jan 1, 10:58 PM CST	Severe Thunderstorm Warning	SHV	Webster	47 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1999 Every severe thunderstorm warning in 1999

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.