Alert archive / Louisiana / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 99, NWS Shreveport, LA

April 20, 1995Natchitoches Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Apr 20, 1995, 2:33 PM CDT for Natchitoches Parish, Louisiana. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
Apr 20, 1995, 2:33 PM CDT (19:33 UTC)
Expired
Apr 20, 1995, 3:15 PM CDT
In force
42 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County Natchitoches Parish, LA

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 7.6 hours before the alert went out and 104 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, Shreveport, LA at 12:00Z on 1995-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 40 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, Shreveport, LA at 12:00Z on 1995-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.1939587897Sfc1 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
40 J/kg
Mixed-layer CIN
-299 J/kg
Mixed-layer LCL
1106 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
168 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

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 20, 8:44 AM CDT, 5 hours 49 minutes before
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Local storm report, Apr 20, 9:05 AM CDT, 5 hours 28 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
905 AM CDT THU APR 20 1995

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

800 PM     CENTEZR POINT              AR      HEN EGG SIZE HAIL WITH
04/19/95   HOWARD                            DAMAGE TO CARS AND ROOFS
Special weather statement, Apr 20, 11:04 AM CDT, 3 hours 29 minutes before
TXZ097-112-126-137-138-150-151-153-ARZ050-051-059-060-070-071-LAZ001-
002-003-004-005-010-012-013-018-019-021-017-014-011-006-201700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1104 AM CDT THU APR 20 1995

THE SEVERE THUNDERSTORM WARNING ISSUED AT 9:46 AM FOR WINN PARISH
LOUISIANA EXPIRED AT 10:45. THE SEVERE THUNERSTORM HAS DECREASED IN
INTENSITY AND IS NO LONGER A THREAT.

AT 10:55 AM THE SHREVEPORT WEATHER RADAR SHOWED AN AREA OF SHOWERS AND
STRONG THUNDERSTORMS FROM JUST SOUTH OF LUFKIN TEXAS EXTENDING
NORTHEASTWARD ACROSS TOLEDO BEND LAKE THROUGH COUSHATTA AND JONESBORO
LOUISIANA INTO EXTREME NORTHEAST LOUISIANA.  STRONG THUNDERSTORMS WITHIN
THIS BAND WERE LOCATED JUST SOUTH OF LUFKIN TEXAS..NEAR COUSHATTA AND
JONESBORO LOUISIANA AND NORTHWEST OF COLUMBIA.

ANOTHER AREA OF SHOWERS AND THUNDERSTORMS WAS LOCATED FROM NEAR DE QUEEN
ARKANSAS SOUTHWESTWARD THROUGH MT. PLEASANT AND PITTSBURGH TEXAS TO WEST
OF HENDERSON.  STRONG THUNDERSTORMS WITHIN THIS AREA WERE NEAR NEW
BOSTON..SOUTH OF MT. PLEASANT AND 10 MILES WEST OF LONGVIEW.

MOVEMENT WAS TO THE NORTHEAST NEAR 30 MPH.

SHOWERS AND STRONG THUNDERSTORMS WILL CONTINUE TO AFFECT PORTIONS OF
NORTHEAST AND EASTERN TEXAS...WESTERN AND NORTHERN LOUISIANA AND EXTREME
SOUTHWEST ARKANSAS INTO THIS AFTERNOON.  SOME OF THE STRONGER
THUNDERSTORMS WILL PRODUCE BRIEF HEAVY RAINFALL...FREQUENT LIGHTNING...
STRONG AND POSSIBLY DAMAGING WINDS AND HAIL.

A TORNADO WATCH REMAINS IN EFFECT FOR PORTIONS OF EASTERN TEXAS AND FOR
PORTIONS OF NORTHERN AND CENTRAL LOUISIANA.

NNNN
Special weather statement, Apr 20, 12:09 PM CDT, 2 hours 24 minutes before
TXZ097-112-126-137-138-150-151-153-ARZ050-051-059-060-061-070-071-
072-LAZ001-002-003-004-005-010-012-013-018-019-021-017-014-011-
006-201815-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1209 PM CDT THU APR 20 1995

THE SHREVEPORT WEATHER RADAR AT 12:00 NOON SHOWED A BAND OF SHOWERS AND
STRONG THUNDERSTORMS FROM SOUTHWEST OF LUFKIN TEXAS EXTENDING
NORTHEASTWARD ACROSS TOLEDO BEND LAKE..THROUGH RUSTON AND JONESBORO
LOUISIANA INTO EXTREME NORTHEAST LOUISIANA. STRONG THUNDERSTORMS WERE
LOCATED OVER TOLEDO BEND LAKE BETWEEN CENTER TEXAS AND MANY LOUSIANA...
ALSO NEAR RUSTON LOUISIANA.

ANOTHER AREA OF SHOWERS AND STRONG THUNDERSTORMS WAS LOCATED FROM NEAR
GILMER TEXAS NORTHEASTWARD THROUGH TEXARKANA TO SOUTH OF HOT SPRINGS
ARKANSAS.  STRONG THUNDERSTORMS WITHIN THIS AREA WERE LOCATED FROM JUST
SOUTH OF NASHVILLE ARKANSAS THROUGH TEXARKANA TO JUST NORTHEAST OF
LINDEN TEXAS.

MOVEMENT WAS TO THE NORTHEAST NEAR 40 MPH.

A TORNADO WATCH REMAINS IN EFFECT FOR PORTIONS OF EASTERN TEXAS AND FOR
PORTIONS OF NORTHERN AND CENTRAL LOUISIANA.

STRONG TO SEVERE THUNDERSTORMS WILL CONTINUE TO AFFECT PORTIONS OF
EASTERN AND NORTHEASTERN TEXAS...SOUTHWEST ARKANSAS AND NORTHERN
LOUISIANA THIS AFTERNOON.

PERSONS IN OR CLOSE TO THE TORNADO WATCH AREA SHOULD REMAIN ALERT FOR
RAPIDLY CHANGING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND
WARNINGS.

NNNN
Special weather statement, Apr 20, 1:18 PM CDT, 1 hour 15 minutes before
TXZ097-112-126-137-138-150-151-153-ARZ050-051-059-060-061-070-071-
072-LAZ001-002-003-004-005-010-012-013-018-019-021-017-014-011-
006-201915-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
118 PM CDT THU APR 20 1995

THE SEVERE THUNDERSTORM WARNING THAT WAS ISSUED AT 12:19 PM FOR SOUTHERN
DESOTO AND NORTHERN SABINE PARISHES IN NORTHWEST LOUSISIANA HAS EXPIRED.

THE SHREVEPORT WEATHER RADAR CONTINUED TO SHOW AN AREA OF SHOWERS AND
STRONG THUNDERSTORMS FROM NEAR FARMERVILLE AND BASTROP LOUISIANA
EXTENDING SOUTHWESTWARD ACROSS NORTH CENTRAL LOUISIANA ACROSS TOLEDO
BEND LAKE TO EAST OF LUFKIN TEXAS.

STRONG THUNDERSTORMS WERE LOCATED OVER WESTERN LOUISIANA BETWEEN
COUSHATTA AND NATCHITOCHES...JUST WEST OF WINNFIELD AND WEST OF BASTROP
LOUISIANA.  MOVEMENT WAS TO THE NORTHEAST NEAR 35 MPH.

ANOTHER AREA OF SHOWERS AND THUNDERSTORMS WAS LOCATED FROM WEST OF
LONGVIEW TEXAS EXTENDING NORTHEASTWARD THROUGH THE TEXARKVANA AREA TO
SOUTH OF HOT SPRINGS ARKANSAS.

TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF EASTERN TEXAS AND FOR
PORTIONS OF CENTRAL AND NORTHERN LOUISIANA.

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 20, 1:42 AM CDTSevere Thunderstorm WarningSHVBossier, Caddo48 min
Apr 20, 2:51 AM CDTSevere Thunderstorm WarningSHVClaiborne54 min
Apr 20, 3:52 AM CDTSevere Thunderstorm WarningSHVUnion68 min
Apr 20, 4:11 AM CDTSevere Thunderstorm WarningSHVBienville, Red River64 min
Apr 20, 5:24 AM CDTSevere Thunderstorm WarningSHVJackson66 min
Apr 20, 9:46 AM CDTSevere Thunderstorm WarningSHVWinn59 min
Apr 20, 12:19 PM CDTSevere Thunderstorm WarningSHVDe Soto, Sabine41 min
Apr 20, 2:06 PM CDTSevere Thunderstorm WarningSHVSabine54 min
Apr 20, 2:06 PM CDTSevere Thunderstorm WarningSHVOuachita54 min
Apr 20, 2:09 PM CDTTornado WarningSHVOuachita36 min
Apr 20, 2:48 PM CDTTornado WarningSHVOuachita27 min
Apr 20, 3:01 PM CDTSevere Thunderstorm WarningSHVWinn44 min
Apr 20, 3:01 PM CDTSevere Thunderstorm WarningSHVBossier, Caddo24 min
Apr 20, 3:45 PM CDTSevere Thunderstorm WarningSHVCaldwell45 min
Apr 20, 4:40 PM CDTSevere Thunderstorm WarningSHVSabine50 min
Apr 20, 5:02 PM CDTSevere Thunderstorm WarningSHVDe Soto, Natchitoches, Red River43 min
Apr 20, 5:47 PM CDTSevere Thunderstorm WarningSHVBienville, Jackson, Winn48 min
Apr 19, 7:23 PM CDTTornado WarningSHVBowie, Cass52 min
Apr 20, 12:39 AM CDTSevere Thunderstorm WarningSHVHarrison, Rusk51 min
Apr 20, 12:39 AM CDTSevere Thunderstorm WarningSHVMarion51 min
Apr 20, 2:22 AM CDTSevere Thunderstorm WarningSHVPanola, Rusk53 min
Apr 20, 3:04 AM CDTSevere Thunderstorm WarningSHVShelby56 min
Apr 20, 3:19 AM CDTTornado WarningSHVPanola56 min
Apr 20, 3:52 AM CDTSevere Thunderstorm WarningSHVShelby68 min
Apr 20, 3:28 PM CDTSevere Thunderstorm WarningSHVGregg, Harrison47 min
Apr 20, 4:29 PM CDTSevere Thunderstorm WarningSHVHarrison46 min
Apr 19, 7:02 PM CDTSevere Thunderstorm WarningSHVSevier43 min
Apr 19, 7:31 PM CDTSevere Thunderstorm WarningSHVHoward44 min
Apr 19, 8:02 PM CDTTornado WarningSHVMiller43 min
Apr 19, 8:31 PM CDTTornado WarningSHVHempstead44 min
Apr 19, 9:07 PM CDTTornado WarningSHVNevada53 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1995Every severe thunderstorm warning in 1995

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.