Alert archive / Louisiana / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 321, NWS New Orleans, LA

July 9, 1995Orleans Parish, Saint Bernard Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Jul 9, 1995, 6:30 PM CDT for Orleans Parish, Saint Bernard Parish, Louisiana. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jul 9, 1995, 6:30 PM CDT (23:30 UTC)
Expired
Jul 9, 1995, 7:30 PM CDT
In force
60 min
Issued by
NWS New Orleans, LA
Area
Whole counties

Counties Orleans Parish, LA, Saint Bernard Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.5 hours before the alert went out and 35 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 12:00Z on 1995-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2394 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, Slidell Radar S, LA at 12:00Z on 1995-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.1939Sfc1 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
2394 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
1079 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KNEW 092333 RRA
SVRNEW
LAC071-087-100030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
630 PM CDT SUN JUL 9 1995
 
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  730 PM CDT
FOR RESIDENTS IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST LOUISIANA
 
   ...EASTERN ORLEANS PARISH...ST.BERNARD PARISH
 
AT 630 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER
EASTEARN ORLEANS PARISH IN NEW ORLEANS EAST. MOVEMENT WAS SOUTHEAST
AT 15 MILES AN 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.

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, Jul 9, 4:48 PM CDT, 1 hour 42 minutes before
MSZ081-082-092215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
448 PM CDT SUN JUL 9 1995

...SEVERE THUNDERSTORM WARNINGS FOR HARRISON AND JACKSON COUNTIES
EXPIRED AT 430 PM...

AT 440 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A BAND
OF VERY STRONG TO SEVERE THUNDERSTORMS OVER THE MISSISSIPPI SOUND...
MOVING SOUTH NEAR 15 MILES AN HOUR. THESE THUNDERSTORMS NO LONGER POSE
A THREAT TO LAND...SO THE SEVERE THUNDERSTORM WARNINGS FOR HARRISON AND
JACKSON COUNTIES HAVE BEEN ALLOWED TO EXPIRE.

THESE THUNDERSTORMS KNOCKED DOWN TREES AND TORE SIDING OFF A HOUSE IN
NORTHERN HARRISON COUNTY AT 350 PM. AT 355 PM...A FUNNEL CLOUD WAS
SIGHTED ON HIGHWAY 57 NEAR VAN CLEAVE IN CENTRAL JACKSON COUNTY...AND
DIME SIZE HAIL OCCURRED IN HARRISON COUNTY AT 415 PM.

THESE THUNDERSTORMS WILL CONTINUE TO POSE A THREAT TO BOATERS IN THE
MISSISSIPPI SOUND.

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Special weather statement, Jul 9, 4:49 PM CDT, 1 hour 41 minutes before
MSZ081-082-092215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
448 PM CDT SUN JUL 9 1995

...SEVERE THUNDERSTORM WARNINGS FOR HARRISON AND JACKSON COUNTIES
EXPIRED AT 430 PM...

AT 440 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A BAND
OF VERY STRONG TO SEVERE THUNDERSTORMS OVER THE MISSISSIPPI SOUND...
MOVING SOUTH NEAR 15 MILES AN HOUR. THESE THUNDERSTORMS NO LONGER POSE
A THREAT TO LAND...SO THE SEVERE THUNDERSTORM WARNINGS FOR HARRISON AND
JACKSON COUNTIES HAVE BEEN ALLOWED TO EXPIRE.

THESE THUNDERSTORMS KNOCKED DOWN TREES AND TORE SIDING OFF A HOUSE IN
NORTHERN HARRISON COUNTY AT 350 PM. AT 355 PM...A FUNNEL CLOUD WAS
SIGHTED ON HIGHWAY 57 NEAFR VAN CLEAVE IN CENTRAL JACKSON COUNTY...AND
DIME SIZE HAIL OCCURRED IN HARRISON COUNTY AT 415 PM.

THESE THUNDERSTORMS WILL CONTINUE TO POSE A THREAT TO BOATERS IN THE
MISSISSIPPI SOUND.

&

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 5:22 PM CDTSevere Thunderstorm WarningLIXSaint Tammany68 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.