Alert archive / Louisiana / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 21, NWS New Orleans, LA

January 13, 1995Assumption Parish, Saint Martin Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Jan 13, 1995, 3:39 AM CST for Assumption Parish, Saint Martin Parish, Louisiana. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Jan 13, 1995, 3:39 AM CST (09:39 UTC)
Expired
Jan 13, 1995, 4:45 AM CST
In force
66 min
Issued by
NWS New Orleans, LA
Area
Whole counties

Counties Assumption Parish, LA, Saint Martin Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 9.7 hours before the alert went out and 159 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, Slidell Radar S, LA at 00:00Z on 1995-01-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 110 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 1995-01-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 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
110 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
811 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KNEW 130943 RRA
SVRNEW
LAC007-099-131045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
339 AM CST FRI JAN 13 1995
 
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  445 AM CST
FOR RESIDENTS IN THE FOLLOWING PARISHESS...
 
IN SOUTHEAST LOUISIANA
 
   ...ASSUMPTION PARISH...LOWER ST.MARTIN PARISH
 
AT 340 AM NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS FROM IBERVILLE PARISH TO WEST OF MORGAN CITY. THE LINE IS
MOVING EAST AROUND 45 MILES AN HOUR WILL MOVE ACROSS ASSUMPTION PARISH
IN THE NEXT HOUR.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
A TORNAD>O WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

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, Jan 12, 11:53 PM CST, 3 hours 46 minutes before
LAZ024-026-029-033>037-046>050-130700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BATON ROUGE LA
1155 PM CST THU JAN 12 1995

...TORNADO WATCH UNTIL 7 AM CST FRIDAY MORNING FOR ALL EAST CENTRAL
LOUISIANA...

RADAR INDICATED THUNDERSTORMS NEAR ALEXANDRIA TO MARKSVILLE AND ALONG
THE COAST JUST EAST OF LAKE CHARLES...ELSEWHERE RAIN CONTINUED FROM
SHREVEPORT TO DE RIDDER AND JENNINGS.  THE THUNDERSTORMS WERE MOVING
NORTH AT 25 MPH.

PEOPLE THROUGHOUT EAST CENTRAL LOUISIANA SHOULD REMAIN ALERT FOR
POSSIBLE SEVERE WEATHER DEVELOPMENT AND BE READY TO TAKE QUICK ACTION
IF NEEDED.
Special weather statement, Jan 12, 11:55 PM CST, 3 hours 44 minutes before
LAZ024-026-029-033>037-046>050-130700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BATON ROUGE LA
1155 PM CST THU JAN 12 1995

...TORNADO WATCH UNTIL 7 AM CST FRIDAY MORNING FOR ALL EAST CENTRAL
LOUISIANA...

RADAR INDICATED THUNDERSTORMS NEAR ALEXANDRIA TO MARKSVILLE AND ALONG
THE COAST JUST EAST OF LAKE CHARLES...ELSEWHERE RAIN CONTINUED FROM
SHREVEPORT TO DE RIDDER AND JENNINGS.  THE THUNDERSTORMS WERE MOVING
NORTH AT 25 MPH.

PEOPLE THROUGHOUT EAST CENTRAL LOUISIANA SHOULD REMAIN ALERT FOR
POSSIBLE SEVERE WEATHER DEVELOPMENT AND BE READY TO TAKE QUICK ACTION
IF NEEDED.
Special weather statement, Jan 13, 1:05 AM CST, 2 hours 34 minutes before
LAZ024-026-029-033>037-046>050-130900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BATON ROUGE LA
105 AM CST FRI JAN 13 1995

...TORNADO WATCH UNTIL 7 AM CST THIS MORNING FOR ALL EAST CENTRAL
LOUISIANA...

RADAR INDICATED VERY STRONG THUNDERSTORMS WEST OF LAKE CHARLES TO
DE RIDDER AND NORTHWEST OF EUNICE...ELSEWHERE RAIN CONTINUED FROM
SHREVEPORT THROUGH ALEXANDRIA TO SOUTH OF LAKE CHARLES AND LAFAYETTE.
THE THUNDERSTORMS WERE MOVING NORTH AT 30 MPH.

PEOPLE THROUGHOUT EAST CENTRAL LOUISIANA SHOULD REMAIN ALERT FOR
POSSIBLE SEVERE WEATHER DEVELOPMENT AND BE READY TO TAKE QUICK ACTION
IF NEEDED.  THESE VERY STRONG THUNDERSTORMS PRODUCED WINDS ABOVE 80
MPH EARLIER WEST OF LAKE CHARLES.
Special weather statement, Jan 13, 1:07 AM CST, 2 hours 32 minutes before
LAZ024-026-029-033>037-046>050-130900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BATON ROUGE LA
105 AM CST FRI JAN 13 1995

...TORNADO WATCH UNTIL 7 AM CST THIS MORNING FOR ALL EAST CENTRAL
LOUISIANA...

RADAR INDICATED VERY STRONG THUNDERSTORMS WEST OF LAKE CHARLES TO
DE RIDDER AND NORTHWEST OF EUNICE...ELSEWHERE RAIN CONTINUED FROM
SHREVEPORT THROUGH ALEXANDRIA TO SOUTH OF LAKE CHARLES AND LAFAYETTE.
THE THUNDERSTORMS WERE MOVING NORTH AT 30 MPH.

PEOPLE THROUGHOUT EAST CENTRAL LOUISIANA SHOULD REMAIN ALERT FOR
POSSIBLE SEVERE WEATHER DEVELOPMENT AND BE READY TO TAKE QUICK ACTION
IF NEEDED.  THESE VERY STRONG THUNDERSTORMS PRODUCED WINDS ABOVE 80
MPH EARLIER WEST OF LAKE CHARLE<S.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 13, 1:27 AM CSTSevere Thunderstorm WarningLIXAvoyelles, Saint Landry63 min
Jan 13, 2:28 AM CSTSevere Thunderstorm WarningLIXAvoyelles, Saint Landry62 min
Jan 13, 2:37 AM CSTSevere Thunderstorm WarningLIXSaint Martin68 min
Jan 13, 2:48 AM CSTSevere Thunderstorm WarningLIXIberville, Pointe Coupee, West Baton Rouge57 min
Jan 13, 3:21 AM CSTSevere Thunderstorm WarningLIXSt. Mary69 min
Jan 13, 4:22 AM CSTSevere Thunderstorm WarningLIXSaint James53 min
Jan 13, 4:47 AM CSTSevere Thunderstorm WarningLIXSaint John the Baptist43 min
Jan 13, 5:05 AM CSTSevere Thunderstorm WarningLIXJefferson, Plaquemines55 min
Jan 13, 5:05 AM CSTSevere Thunderstorm WarningLIXLafourche55 min
Jan 13, 5:11 AM CSTSevere Thunderstorm WarningLIXTangipahoa64 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.