Alert archive / Louisiana / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 182, NWS New Orleans, LA

May 4, 1995Tangipahoa Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at May 4, 1995, 1:56 PM CDT for Tangipahoa Parish, Louisiana. It was in force for 34 min.

The area

The counties it named.

The facts

Issued: May 4, 1995, 1:56 PM CDT (18:56 UTC)
Expired: May 4, 1995, 2:30 PM CDT
In force: 34 min
Issued by: NWS New Orleans, LA
Area: Whole counties

County Tangipahoa Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 6.9 hours before the alert went out and 80 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 814 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 639 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 203 m²/s²
0-3 km storm-relative helicity: 291 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KNEW 041858
SVRNEW
LAC105-041930-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
156 PM CDT THU MAY 4 1995
 
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  230 PM CDT
FOR RESIDENTS IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST LOUISIANA
 
   ...TANGIPAHOA PARISH
 
AT 155 PM NATIONAL WEATHER SERVICE RADAR INDICATED SEVERAL SEVERE
THUNDERSTORMS FROM NEAR SOUTHEAST OF KENTWOOD TO NEAR LORANGER. THESE
STORMS HAVE PRODUCED NICKEL TO QUARTER SIZE HAIL.
 
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

Local storm report, May 4, 1:22 PM CDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORTS
NATIONAL WEATHER SERVICE NEW ORLEANS LA
119 PM CDT THU MAY  4 1995

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

0112 PM    GREENSBURG                LA   1 INCH DIAMETER HAIL
05/04/95   ST. HELENA                     REPORTED BY S.O. WSR-88D VIL
                                          70 KG/M2

RJR

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 1:05 PM CDT	Severe Thunderstorm Warning	LIX	Saint Helena, Tangipahoa	55 min
May 4, 1:59 PM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany, Washington	61 min
May 4, 2:12 PM CDT	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana	63 min
May 4, 2:53 PM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany	67 min
May 4, 3:14 PM CDT	Severe Thunderstorm Warning	LIX	Livingston	61 min
May 4, 4:42 PM CDT	Severe Thunderstorm Warning	LIX	Orleans, Saint Bernard	63 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1995 Every 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.