Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 355, NWS Jackson, MS

June 19, 1997Lamar County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jun 19, 1997, 1:46 PM CDT for Lamar County, Mississippi. It was in force for 29 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: Jun 19, 1997, 1:46 PM CDT (18:46 UTC)
Expired: Jun 19, 1997, 2:15 PM CDT
In force: 29 min
Issued by: NWS Jackson, MS
Area: Whole counties

County Lamar County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 6.8 hours before the alert went out and 108 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: 1951 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 780 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 120 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 KJAN 191848 RRA
SVRJAN
MSC073-191915-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
146 PM CDT THU JUN 19 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  215 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST MISSISSIPPI
 
   ...SOUTHEASTERN LAMAR COUNTY
 
AT 145 PM JACSKON RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 6 MILES
SOUTHWEST OF PURVIS. THE STORM IS MOVING TO THE NORTHEAST AT 10 MPH. THE
MAIN THREAT FROM THIS STORM IS HEAVY RAINFALL...GUSTY WINDS AND SOME
HAIL.
 
SEVERE THUNDERSTORMS PRODUCE WIND IN EXCESS OF 55 MPH...LARGE
HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.  MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
<

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, Jun 19, 10:05 AM CDT, 3 hours 41 minutes before

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072>
074-200400-

AREA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
1010 AM CDT THU JUN 19 1997

THE AIRMASS OVER MISSISSIPPI IS GENERALLY STABLE...WITH WEAK HIGH PRESSURE
AT THE SURFACE. AFTERNOON HEATING WILL HELP TO DESTABLIZE THE AIRMASS
SLIGHTLY. THIS COULD PRODUCE SOME WIDELY SCATTERED THUNDERSTORMS...BUT
CONDITIONS WILL NOT SUPPORT THE DEVELOPMENT OF SEVERE THUNDERSTORMS.

ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL...HAM RADIO OPERATORS
...AND STORM SPOTTERS WILL NOT BE NECESSARY THROUGH THIS EVENING.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 2:00 PM CDT	Severe Thunderstorm Warning	JAN	Forrest	45 min
Jun 19, 2:02 PM CDT	Severe Thunderstorm Warning	JAN	Marion	43 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 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.