Alert archive / Louisiana / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 2, NWS New Orleans, LA

January 27, 1994West Baton Rouge Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Jan 27, 1994, 12:07 AM CST for West Baton Rouge Parish, Louisiana. It was in force for 68 min.

The area

The counties it named.

The facts

Issued: Jan 27, 1994, 12:07 AM CST (06:07 UTC)
Expired: Jan 27, 1994, 1:15 AM CST
In force: 68 min
Issued by: NWS New Orleans, LA
Area: Whole counties

County West Baton Rouge Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 6.1 hours before the alert went out and 157 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: 108 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 537 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 92 m²/s²
0-3 km storm-relative helicity: 150 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KBTR 270605 RRA
SVRBTR
LAC121-270715-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BATON ROUGE LA
1207 AM CST THU JAN 27 1994
 
THE NATIONAL WEATHER SERVICE IN BATON ROUGE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  115 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN EAST CENTRAL LOUISIANA
 
   ...WEST BATON ROUGE PARISH
 
RADAR SHOWED A SEVERE THUNDERSTORM WEST OF BRUSLY MOVING NORTHEAST AT 30
MPH.
 
 
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, Jan 26, 10:30 PM CST, 1 hour 37 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1130 PM CDT WED JAN 26 1994

DATE       TIME CST    PARISH            EVENT

01/26/94   1120PM   UPR ST. MARTIN, LA   CHANNEL 10 IN ST MARTINSVILLE
                                         REPORTED GOLF BALL SIZE HAIL.
01/26/94   1130PM   UPR ST. MARTIN, LA   BREAUX BRIDGE...SHERIFF REPORT
                                         ...HAIL OF UNDETERMINED SIZE.

Special weather statement, Jan 26, 10:35 PM CST, 1 hour 32 minutes before

LAZ038>040-045-053>070-LAZ502-LAZ501-ALZ501-270535-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1035 PM CST WED JAN 26 1994

A CLUSTER OF THUNDERSTORMS WITH VERY HEAVY RAIN WAS JUST TO THE WEST AND
SOUTHWEST OF LAFAYETTE LOUISIANA MOVING NORTHEAST AT 30 MILES AN HOUR.
THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...FREQUENT LIGHTNING...
AND VERY HEAVY RAIN AS THEY MOVE RAPIDLY NORTHEAST. THE AREA OF LIGHT RAIN
AND THUNDERSTORMS EXTENDED NORTHEAST TO BETWEEN SIMMESPORT AND BATON
ROUGE.

Special weather statement, Jan 26, 11:22 PM CST, 45 minutes before

LAZ029-033>037-046>050-270700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BATON ROUGE LA
1120 PM CST WED JAN 26 1993

...STRONG THUNDERSTORMS MOVING INTO SOUTHERN ST LANDRY AND IBERVILLE
PARISHES OF EAST CENTRAL LOUISIANA...

RADAR SHOWED STRONG THUNDERSTORMS SOUTH OF LAFAYETTE TO NEAR EUNICE MOVING
NORTHEAST AT 30 MPH.  PUBLIC REPORTED PEA TO MARBLE SIZE HAIL NEAR
LAFAYETTE.

THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WIND WITH PERIO.DS OF
HEAVY RAIN AND HAIL POSSIBLE.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 26, 11:02 PM CST	Severe Thunderstorm Warning	LIX	Saint Martin	58 min
Jan 27, 1:22 AM CST	Severe Thunderstorm Warning	LIX	Saint Martin	53 min
Jan 27, 1:40 AM CST	Severe Thunderstorm Warning	LIX	Iberia, Saint Martin	65 min
Jan 27, 4:30 AM CST	Severe Thunderstorm Warning	LIX	Saint Tammany, Washington	60 min
Jan 27, 10:17 AM CST	Flash Flood Warning	LIX	East Feliciana, Saint Helena	93 min
Jan 27, 10:17 AM CST	Flash Flood Warning	LIX	West Feliciana	93 min
Jan 27, 4:00 PM CST	Flash Flood Warning	LIX	Avoyelles	4 hr
Jan 27, 5:32 PM CST	Flash Flood Warning	LIX	East Feliciana, Saint Helena, West Feliciana	4 hr
Jan 27, 5:47 PM CST	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana, Saint Helena, West Baton Rouge	58 min
Jan 27, 5:47 PM CST	Severe Thunderstorm Warning	LIX	Iberville	58 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1994 Every severe thunderstorm warning in 1994

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.