Alert archive / Louisiana / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 73, NWS Shreveport, LA

April 19, 1992Winn Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Apr 19, 1992, 8:07 PM CDT for Winn Parish, Louisiana. It was in force for 68 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 19, 1992, 8:07 PM CDT (01:07 UTC)
Expired
Apr 19, 1992, 9:15 PM CDT
In force
68 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County Winn Parish, LA

What was reported inside it

TimeReportWhereRemark
Apr 19, 8:55 PM CDTHail 2Winn, LA
Apr 19, 9:00 PM CDTHail 1Winn, LA

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 00:00Z, 1.1 hours before the alert went out and 190 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, Longview/Gregg, TX at 00:00Z on 1992-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 711 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, Longview/Gregg, TX at 00:00Z on 1992-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 square meters per square second.19395878Sfc1 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
711 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
1038 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
204 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.9

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.

In the hours before

Special weather statement, Apr 19, 2:47 PM CDT, 5 hours 20 minutes before
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Special weather statement, Apr 19, 4:15 PM CDT, 3 hours 52 minutes before
OKZ040-021-034-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-
002-003-004-005-006-192230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
410 PM CDT SUN APR 19 1992

...TORNADO WATCH IN EFFECT FOR EAST TEXAS...AND FOR PARTS OF NORTHWEST
LOUISIANA AND SOUTHWEST ARKANSAS UNTIL 9 PM...
...FLASH WATCH IN EFFECT FOR NORTHWEST LOUISIANA AND NORTHEAST TEXAS
TONIGHT...

AT 410 PM CDT WEATHER SERVICE RADAR IN SHREVEPORT SHOWED SHOWERS AND
THUNDERSTORMS ACROSS EAST TEXAS AND AND PARTS OF NORTH LOUISISANA AND
SOUTHWEST ARKANSAS. A POSSIBLE SEVERE STORM WAS LOCATED ABOUT 20 MILES
SOUTHEAST OF LUFKIN TEXAS. OTHER THUNDERSTORMS PRODUCING VERY HEAVY
RAINFALL WERE LOCATED IN NORTHWEST LOUISIANA FROM NEAR RUSTON TO
NATCHITOCHES.  MOST OF THE SHOWER ACTIVITY WAS LOCATED WEST OF A LINE
FROM MURFREESBORO ARKANSAS TO GREENWOOD LOUISIANA TO JASPER TEXAS.
MOVEMENT WAS NORTHEAST AT 35 MPH.
.
THUNDERSTORMS MAY PRODUCE VERY HEAVY RAINFALL...HIGH AND POSSIBLY
DAMAGING...AND HAIL. THE THREAT OF STORMS WILL CONTINUE THROUGH TONIGHT
ACROSS THE ARKLATEX.

PERSONS ACROSS THE ARKLATEX REGION SHOULD MONITOR CHANGING WEATHER
CONDITIONS TODAY AND TONIGHT AND BE PREPARED TO MOVE TO A SAuFE PLACE
IF SEVERE WEATHER DEVELOPS. THUNDERSTORMS CAN PRODUCE FLOOD PRODUCING
RAINFALL...HIGH AND POSSIBLY DAMAGING WINDS...HAIL...AND DANGEROUS
LIGHTNING AS WELL AS TORNADOES.
Special weather statement, Apr 19, 5:10 PM CDT, 2 hours 57 minutes before
OKZ040-021-034-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-
002-003-004-005-006-200000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
505 PM CDT SUN APR 19 1992

...TORNADO WATCH IN EFFECT FOR EAST TEXAS...AND FOR PARTS OF NORTHWEST
LOUISIANA AND SOUTHWEST ARKANSAS UNTIL 9 PM...
...FLASH WATCH IN EFFECT FOR NORTHWEST LOUISIANA AND NORTHEAST TEXAS
TONIGHT...

AT 505 PM CDT WEATHER SERVICE RADAR IN SHREVEPORT CONTINUED TO SHOW
SHOWERS AND THUNDERSTORMS ACROSS NORTHEAST TEXAS AND OVER PARTS OF
SOUTHWEST ARKANSAS AND NORTH LOUISIANA. ONE 50 MILE WIDE AREA EXTENDED
FROM NEAR HOT SPRINGS ARKANSAS TO TEXARKANA TO TENAHA TEXAS TO WOODVILLE.
ANOTHER BAND OF SHOWERS AND THUNDERSTORMS EXTENDED FROM NEAR PARIS TEXAS
SOUTHWARD TO ATHENS. OVER NORTH LOUISIANA ISOLATED SHOWERS AND THUNDER-
STORMS WERE INDICATED. VERY HEAVY RAINFALL WAS OCCURRING NEAR LOGANSPORT
LOUISIANA...NEAR THE SAN RAYBURN RESERVOIR IN EAST TEXAS AND NEAR WILLS
POINT TEXAS. MOVEMENT WAS TO THE NORTHEAST AT 30 MPH.
.
THESE THUNDERSTORMS WILL PRODUCE VERY HEAVY RAINFALL...STRONG GUSTY WINDS...
...AND POSSIBLY HAIL. THE THREAT OF STORMS WILL CONTINUE THROUGH TONIGHT
ACROSS THE ARKLATEX.

PERSONS ACROSS THE ARKLATEX REGION SHOULD TAKE CAUTION IF TRAVELING TONIGHT.
HEAVY RAINFALL WILL CAUSE PONDING OF WATER ON ROADWAYS AND POSSIBLY
FLOODING IN LOW AND POOR DRAINAGE AREAS. SEVERE STORMS CAN CAUSE FLOOD
PRODUCING RAINFALL...HIGH AND DAMAGING7 WINDS...HAIL...AND DANGEROUS
LIGHTNING AS WELL AS TORNADOES.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 19, 7:10 PM CDTSevere Thunderstorm WarningSHVNatchitoches, Sabine65 min
Apr 19, 9:14 PM CDTSevere Thunderstorm WarningSHVCaldwell, Jackson, Winn61 min
Apr 19, 9:56 PM CDTTornado WarningSHVJackson, Ouachita49 min
Apr 19, 10:43 PM CDTTornado WarningSHVMorehouse, Ouachita47 min
Apr 19, 11:16 PM CDTSevere Thunderstorm WarningSHVCaldwell, Ouachita, Richland59 min
Apr 19, 11:16 PM CDTSevere Thunderstorm WarningSHVJackson, Winn59 min
Apr 20, 12:19 AM CDTSevere Thunderstorm WarningSHVFranklin, Madison, Tensas56 min
Apr 20, 12:40 AM CDTSevere Thunderstorm WarningSHVEast Carroll, West Carroll50 min
Apr 20, 2:09 AM CDTSevere Thunderstorm WarningSHVNatchitoches, Winn66 min
Apr 20, 4:08 AM CDTSevere Thunderstorm WarningSHVMadison37 min
Apr 19, 8:17 PM CDTSevere Thunderstorm WarningSHVShelby58 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1992Every severe thunderstorm warning in 1992

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.