Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 333, NWS Jackson, MS

May 28, 1997Concordia Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at May 28, 1997, 4:00 PM CDT for Concordia Parish, Louisiana. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 28, 1997, 4:00 PM CDT (21:00 UTC)
Expired: May 28, 1997, 4:45 PM CDT
In force: 45 min
Issued by: NWS Jackson, MS
Area: Whole counties

County Concordia Parish, LA

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.0 hours before the alert went out and 176 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: 35 J/kg
Mixed-layer CIN: -262 J/kg
Mixed-layer LCL: 1091 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 45 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.

304 
WUUS1 KJAN 282103 RRA
SVRJAN
LAC029-282145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
400 PM CDT WED MAY 28 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  445 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST LOUISIANA
 
   ...SOUTHERN CONCORDIA PARISH
 
AT 359 PM DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES WEST OF
SLOCUM...MOVING NORTHEAST AT 5 MPH. THE STORM WILL MOVE THROUGH DEER
PARK BY 420 PM.
 
IF YOU ARE OUTSIDE...SEEK SHELTER IN A STRONG BUILDING AWAY FROM
WINDOWS.  DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND
DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
<
 
 
68

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, May 28, 10:10 AM CDT, 5 hours 50 minutes before

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072>
074-290400-

AREA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
1010 AM CDT WED MAY 28 1997

THE AIR MASS REMAINS HUMID AND UNSTABLE ACROSS THE AREA TODAY AS A
COLD FRONT LINGERS TO THE WEST. SCATTERED TO BROKEN CLOUDS WILL ALLOW
AFTERNOON HEATING AND ISOLATED THUNDERSTORMS WILL DEVELOP BY LATE
AFTERNOON. SEVERAL OUTFLOW BOUNDARIES EXIST FROM EARLIER CONVECTION
AND THESE MAY SERVE AS A FOCUS FOR THE DEVELOPMENT OF STRONG...POSSIBLY
SEVERE...THUNDERSTORMS DURING THE LATE AFTERNOON AND EVENING.

A WEATHER DISTURBANCE OVER OKLAHOMA AND TEXAS THIS MORNING WILL TRACK
TO THE EAST DURING THE DAY AND INCREASE THE THREAT OF SEVERE WEATHER
DEVELOPMENT TONIGHT.

ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND EMERGENCY
MANAGEMENT PERSONNEL MAY BE NECESSARY LATE TODAY AND TONIGHT.

Special weather statement, May 28, 10:31 AM CDT, 5 hours 29 minutes before

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072>
074-290400-

AREA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
1010 AM CDT WED MAY 28 1997

THE AIR MASS REMAINS HUMID AND UNSTABLE ACROSS THE AREA TODAY AS A
COLD FRONT LINGERS TO THE WEST. SCATTERED TO BROKEN CLOUDS WILL ALLOW
AFTERNOON HEATING AND ISOLATED THUNDERSTORMS WILL DEVELOP BY LATE
AFTERNOON. SEVERAL OUTFLOW BOUNDARIES EXIST FROM EARLIER CONVECTION
AND THESE MAY SERVE AS A FOCUS FOR THE DEVELOPMENT OF STRONG...POSSIBLY
SEVERE...THUNDERSTORMS DURING THE LATE AFTERNOON AND EVENING.

A WEATHER DISTURBANCE OVER OKLAHOMA AND TEXAS THIS MORNING WILL TRACK
TO THE EAST DURING THE DAY AND INCREASE THE THREAT OF SEVERE WEATHER
DEVELOPMENT TONIGHT.

ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND EMERGENCY
MANAGEMENT PERSONNEL MAY BE NECESSARY LATE TODAY AND TONIGHT.

Local storm report, May 28, 3:49 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MISSISSIPPI
349 PM CDT WED MAY 28 1997

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

0755 PM    METCALF                   MS   WIND DAMAGE
05/27/97   WASHINGTON                     TRAILER DESTROYED...TREES
                                          DOWN

0845 PM    RAYVILLE                  LA   WIND DAMAGE
05/27/97   RICHLAND                       TREES AND POWER LINES DOWN

0845 PM    YAZOO CITY                MS   .75 INCH HAIL
05/27/97   YAZOO                          TREES DOWN

0945 PM    POLKVILLE                 MS   .88 INCH HAIL
05/27/97   SMITH                          TREES DOWN
1025 PM    PELAHATCHIE               MS   1 INCH HAIL
05/27/97   RANKIN                         PEA TO QUARTER SIZE HAIL

1115 PM    TERRY                     MS   .75 INCH HAIL
05/27/97   HINDS                          TREES DOWN

1200 AM    HARPERVILLE               MS   WIND DAMAGE
05/28/97   SCOTT                          TREES DOWN

Local storm report, May 28, 3:57 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MISSISSIPPI
349 PM CDT WED MAY 28 1997

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

0755 PM    METCALF                   MS   WIND DAMAGE
05/27/97   WASHINGTON                     TRAILER DESTROYED...TREES
                                          DOWN

0845 PM    RAYVILLE                  LA   WIND DAMAGE
05/27/97   RICHLAND                       TREES AND POWER LINES DOWN

0845 PM    YAZOO CITY                MS   .75 INCH HAIL
05/27/97   YAZOO                          TREES DOWN

0945 PM    POLKVILLE                 MS   .88 INCH HAIL
05/27/97   SMITH                          TREES DOWN
1025 PM    PELAHATCHIE               MS   1 INCH HAIL
05/27/97   RANKIN                         PEA TO QUARTER SIZE HAIL

1115 PM    TERRY                     MS   .75 INCH HAIL
05/27/97   HINDS                          TREES DDOWN

1200 AM    HARPERVILLE               MS   WIND DAMAGE
05/28/97   SCOTT                          TREES DOWN

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 27, 8:20 PM CDT	Tornado Warning	JAN	Richland	40 min
May 27, 8:56 PM CDT	Severe Thunderstorm Warning	JAN	Richland	34 min
May 27, 9:10 PM CDT	Severe Thunderstorm Warning	JAN	East Carroll, Madison	50 min
May 28, 4:18 PM CDT	Flash Flood Warning	JAN	Concordia	117 min
May 28, 5:54 PM CDT	Severe Thunderstorm Warning	JAN	Catahoula	51 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1997 Every severe thunderstorm warning in 1997

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.