Alert archive / Louisiana / Tornado Warnings in 1992

Tornado Warning 10, NWS New Orleans, LA

July 15, 1992Orleans Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Jul 15, 1992, 7:14 PM CDT for Orleans Parish, Louisiana. It was in force for 21 min.

The area

The counties it named.

The facts

Issued
Jul 15, 1992, 7:14 PM CDT (00:14 UTC)
Expired
Jul 15, 1992, 7:35 PM CDT
In force
21 min
Issued by
NWS New Orleans, LA
Area
Whole counties

County Orleans Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 0.2 hours before the alert went out and 30 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 1992-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1665 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1992-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -25 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
1665 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
816 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-25 m²/s²
0-3 km storm-relative helicity
16 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 160017
TORNEW
LAC071-160115-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
714 PM CDT WED JUL 15 1992
 
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
TORNADO AND SPECIAL MARINE WARNING EFFECTIVE UNTIL  815 PM CDT
FOR RESIDENTS IN THE FOLLOWING PARISHES
 
IN SOUTHEAST LOUISIANA
 
   ...EXTREME EASTERN ORLEANS PARISH
 
AND THE ADJACENT COASTAL WATERS OF LAKE BORGNE IN SOUTHEAST LOUISIANA.
 
 
AT 708 PM CDT AN OBSERVER REPORTED SEVERAL LARGE WATERSPOUTS JUST
SOUTH OF LAKE CATHERINE IN EXTREME EASTERN ORLEANS PARISH. A SEVERE
THUNDERSTORM IN THE AREA IS DRIFTING TOWARD THE EAST AT ABOUT 5 MPH
AND WILL BE MOVING ACROSS LAKE BORGNE DURING THE NEXT HOUR.
 
 
THIS IS A DANGEROUS SITUATION. ALL SMALL CRAFT ON LAKE BORGNE SHOULD
SEEK SAFE HARBOR IMMEDIATELY. THIS THUNDERSTORM IS CAPABLE OF
PRODUCING ADDITIONAL WATERSPOUTS.. WINDS EXCEEDING GALE FORCE.. HEAVY
RAIN.. DANGEROUlS LIGHTNING AND ROUGH SEAS.
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING.  AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH
OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

What forecasters said that day

The local office's own words before this tornado 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 15, 2:49 PM CDT, 4 hours 25 minutes before
LAZ006-008-009-152200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BATON ROUGE LA
250 PM CDT WED JUL 15 1992

...STRONG THUNDERSTORMS CONTINUE ACROSS PARTS OF EAST CENTRAL
LOUISIANA...

RADAR SHOWED STRONG THUNDERSTORMS WITH HEAVY RAIN AND STRONG GUSTY
WIND SCATTERED ACROSS EAST CENTRAL LOUISIANA WEST OF BATON ROUGE.
THE STRONGEST STORMS EXTENDED IN A SCATTERED BAND FROM LAFAYETTE TO
ST FRANCISVILLE AND INTO SOUTHWESTERN MISSISSIPPI NEAR LIBERTLY.
MOVEMENT WAS EAST AT 20 MPH.

ELSEWHERE...THUNDERSTORMS WERE SCATTERED ALONG THE COAST SOUTH OF
LAKE CHARLES TO NEW IBERIA AND NEAR THE MOUTH OF THE MISSISSIPPI
RIVER.

SCATTERED THUNDERSTORMS CAN BE EXPECTED TO CONTINUE FOR THE REMAINDXER
OF THE DAY.
Special weather statement, Jul 15, 3:38 PM CDT, 3 hours 36 minutes before
LAZ006-008-009-152300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BATON ROUGE LA
340 PM CDT WED JUL 15 1992

...STRONG THUNDERSTORMS CONTINUE ACROSS PARTS OF EAST CENTRAL
LOUISIANA...

RADAR SHOWED STRONG THUNDERSTORMS WITH HEAVY RAIN AND STRONG GUSTY
WIND SCATTERED ACROSS EAST CENTRAL LOUISIANA FROM THE BATON ROUGE
METROPOLITIAN AREA AND WESTWARD.  THE STRONGEST STORMS EXTENDED IN A
SCATTERED BAND FROM LAFAYETTE TO ST FRANCISVILLE AND INTO SOUTHWESTERN
MISSISSIPPI NEAR LIBERTTY.  MOVEMENT WAS EAST AT 20 MPH.

ELSEWHERE...THUNDERSTORMS WERE SCATTERED ALONG THE COAST SOUTH OF
LAKE CHARLES TO NEW IBERIA AND NEAR THE MOUTH OF THE MISSISSIPPI
RIVER.

SCATTERED THUNDERSTORMS CAN BE EXPECTED TO CONTINUE FOR THE REMAINDER
OF THE DAY.
Special weather statement, Jul 15, 5:32 PM CDT, 1 hour 42 minutes before
LAZ008>010-012>014-MSZ010>014-ALZ016-160000-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NEW ORLEANS LA
531 PM CDT WED JUL 15 1992

AT 532 PM A BAND OF STRONG THUNDERSTORMS WITH HEAVY RAINFALL EXTENDED SOUTH
FROM MORGAN CITY INTO THE COASTAL WATERS. THESE STORMS MAY PRODUCE STRONG GUSTY
WINDS...DANGEROUS LIGHTNING AND SMALL HAIL. BOATERS ALONG THE COAST BETWEEN
ATCHAFALAYA BAY AND TERREBONNE BAY SHOULD ALSO EXPECT ROUGH SEAS WITH THE
STRONG GUSTY WINDS AS THE BAND OF STORMS MOVES EAST AT 20 MILES AN HOUR.

MOST OF SOUTH CENTRAL LOUISIANA WAS COVERED BY WIDELY SCATTERED THUNDERSTORMS
MIXED IN WIDESPREAD RAIN ALONG AND WEST OF THE ATCHAFALAYA RIVER.

SCATTERED STRONG THUNDERSTORMS WITH HEAVY RAINFALL WERE OVER SOUTHEAST
LOUISIANA NORTH OF LAKE PONTCHARTRAIN FROM COVINGTON AND HAMMOND NORTH INTO
SOUTHWEST MISSISSIPPI.

SCATTERED PATCHES OF LIGHT RAIN WERE OCCURRING ALONG THE COAST AND INTO
THE COASTAL WATERS FROM THE MOUTH OF THE MISSISSIPPI RIVER NORTH OVER THE
CHANDELEUR SOUND.

SCATTERED RAIN SHOWERS AND THUNDERSTORMS WERE OCCURRING IN SOUTHWEST ALABAMA
AND EXTENDED INTO SOUTHEAST MISSISSIPPI NEAR LAUREL AND MERIDIAN.

THE THUNDERSTORMS WERE MOVIN6G EAST AT 20 MILES AN HOUR.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 3:56 PM CDTTornado WarningLIXSaint John the Baptist64 min

Nearby

Tornado Warnings in Louisiana, 1992Every tornado warning in 1992Tornadoes 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; the sounding from the Mesonet's radiosonde archive.