Alert archive / Louisiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 164, NWS Shreveport, LA

April 27, 1998Ouachita Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Apr 27, 1998, 8:24 PM CDT for Ouachita Parish, Louisiana. It was in force for 61 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: Apr 27, 1998, 8:24 PM CDT (01:24 UTC)
Expired: Apr 27, 1998, 9:25 PM CDT
In force: 61 min
Issued by: NWS Shreveport, LA
Area: Whole counties

County Ouachita Parish, LA

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 27, 3:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 1.4 hours before the alert went out and 150 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: 10 J/kg
Mixed-layer CIN: -228 J/kg
Mixed-layer LCL: 937 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: -124 m²/s²
0-3 km storm-relative helicity: 179 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.8

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 27, 2:00 PM CDT, 6 hours 24 minutes earlier.

Area forecast discussion, Apr 27, 2:00 PM CDT, 6 hours 24 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
200 PM CDT MON APR 27 1998

QUASI STATIONARY FRONT AT 18Z EXTENDED FROM NEAR JOPLIN MO SOUTH
THROUGH EXTREME WESTERN AR TO NEAR SHREVEPORT AND SOUTH TO WEST OF
HOUSTON TX. A WEAK OUTFLOW BOUNDARY HAD PROGRESSED EAST TO NEAR EL
DORADO ARKANSAS...BUT WAS SLOWLY DISSIPATING. ANOTHER UPPER LEVEL
VORT MAX IS PROGGED TO ROTATE AROUND THE UPPER LOW TONIGHT. THIS
VORT MAX SHOULD MOVE OVER NORTHEAST TEXAS AND SOUTHEAST OKLAHOMA...
TRIGGERING NUMEROUS SHOWERS AND THUNDERSTORMS NEAR AND EAST
OF THE STATIONARY FRONT. SEVERE WEATHER RISK IS PROBABLY LOW
TONIGHT...BUT LATE THIS AFTERNOON AND EVENING COULD SEE A FEW STORMS
REACH SEVERE LIMITS OVER EXTREME EAST TEXAS AND NORTHWEST AND NORTH
CENTRAL LOUISIANA...AS WELL AS OVER SOUTHERN ARKANSAS. HEAVY RAIN
IS A POSSIBILITY TONIGHT ESPECIALLY OVER NORTHERN LOUISIANA AND
SOUTHERN ARKANSAS TONIGHT. RAIN SHOULD TAPER OFF TO SCATTERED SHOWERS
AND THUNDERSTORMS ON TUESDAY...BUT AS LONG AS THE STATIONARY FRONT IS
IN THE AREA...A CHANCE OF RAIN WILL CONTINUE. THE FRONT MAY
NOT MOVE EAST OF THE AREA UNTIL THURSDAY. TEMPS WILL BE COOLER TO
THE WEST OF THE FRONT OVER NORTHEAST TEXAS AND SOUTHEAST OKLAHOMA
AND PERSISTENTLY MILD TO THE EAST OF THE FRONT. PRELIMS BELOW...

SHV 60/77/56/78 7412   MLU 64/74/60/77 8623   03

03

In the hours before

Local storm report, Apr 27, 4:18 PM CDT, 4 hours 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
418 PM CDT MON APR 27 1998

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

0308 PM    CENTER                    TX   .75 INCH HAIL
04/27/98   SHELBY

0330 PM    ARCADIA                   LA   .75 INCH HAIL
04/27/98   BIENVILLE

0400 PM    DUBACH                    LA   .75 INCH HAIL
04/27/98   LINCOLN                        DIME SIZED HAIL COVERING
                                          THE GROUND.

10

Local storm report, Apr 27, 4:18 PM CDT, 4 hours 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
418 PM CDT MON APR 27 1998

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

0308 PM    CENTER                    TX   .75 INCH HAIL
04/27/98   SHELBY

0330 PM    ARCADIA                   LA   .75 INCH HAIL
04/27/98   BIENVILLE

0400 PM    DUBACH                    LA   .75 INCH HAIL
04/27/98   LINCOLN                        DIME SIZED HAIL COVERING
                                          THE GROUND.

10

Local storm report, Apr 27, 5:01 PM CDT, 3 hours 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
501 PM CDT MON APR 27 1998

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

0428 PM    LUFKIN                    TX   1.75 INCH HAIL
04/27/98   ANGELINA

0430 PM    FARMERVILLE               LA   .88 INCH HAIL
04/27/98   UNION                          NICKEL SIZE HAIL OCCURRED
                                          5 MI N OF FARMERVILLE LA

Local storm report, Apr 27, 5:01 PM CDT, 3 hours 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
501 PM CDT MON APR 27 1998

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

0428 PM    LUFKIN                    TX   1.75 INCH HAIL
04/27/98   ANGELINA

0430 PM    FARMERVILLE               LA   .88 INCH HAIL
04/27/98   UNION                          NICKEL SIZE HAIL OCCURRED
                                          5 MI N OF FARMERVILLE LA

Local storm report, Apr 27, 8:08 PM CDT, 16 minutes before

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Local storm report, Apr 27, 8:08 PM CDT, 16 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.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 7:11 PM CDT	Tornado Warning	SHV	Winn	49 min
Apr 27, 7:24 PM CDT	Severe Thunderstorm Warning	SHV	Ouachita	46 min
Apr 27, 7:48 PM CDT	Tornado Warning	SHV	Ouachita	32 min
Apr 27, 8:02 PM CDT	Severe Thunderstorm Warning	SHV	Winn	48 min
Apr 27, 8:41 PM CDT	Severe Thunderstorm Warning	SHV	Grant	49 min
Apr 27, 10:00 PM CDT	Severe Thunderstorm Warning	SHV	LaSalle	30 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1998 Every severe thunderstorm warning in 1998

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.