Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 476, NWS Jackson, MS

October 24, 1997Jefferson County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Oct 24, 1997, 1:46 AM CDT for Jefferson 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: Oct 24, 1997, 1:46 AM CDT (06:46 UTC)
Expired: Oct 24, 1997, 2:15 AM CDT
In force: 29 min
Issued by: NWS Jackson, MS
Area: Whole counties

County Jefferson County, MS

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 24, 12:30 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 6.8 hours before the alert went out and 111 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1076 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 189 m²/s²
0-3 km storm-relative helicity: 329 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 240647 RRA
SVRJAN
MSC063-240715-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
146 AM CDT FRI OCT 24 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  215 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST MISSISSIPPI
 
   ...EASTERN JEFFERSON COUNTY
 
AT 145 AM...JACKSON DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CENTERED 5 MILES WEST-SOUTHWEST OF UNION CHURCH MOVING TOWARD THE
UNION CHURCH AREA AT 45 MPH. DAMAGING WINDS ARE LIKELY WITH THIS
THUNDERSTORM.
 
A TORNADO WATCH IS ALSO IN EFFECT.  REMEMBER SEVERE THUNDERSTORMS
CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.  REMAIN
CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
<
63

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, Oct 23, 11:54 PM CDT, 1 hour 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1154 PM CDT THU OCT 23 1997

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

1130 PM    ALTON                     LA   WIND DAMAGE
10/23/97   MADISON                        TALLULLAH PD REPORTED TREES
                                          DOWN...POWERLINES DOWN AND
                                          ONE MOBILE HOME DAMAGED.

Local storm report, Oct 23, 11:58 PM CDT, 1 hour 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1154 PM CDT THU OCT 23 1997

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

1130 PM    ALTON                     LA   WIND DAMAGE
10/23/97   MADISON                        TALLULLAH PD REPORTED TREES
                                          DOWN...POWERLINES DOWN AND
                                          ONE MOBILE HOME DAMAGED.

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 23, 11:27 PM CDT	Severe Thunderstorm Warning	JAN	Adams	33 min
Oct 23, 11:53 PM CDT	Tornado Warning	JAN	Adams, Jefferson	37 min
Oct 24, 12:21 AM CDT	Severe Thunderstorm Warning	JAN	Yazoo	39 min
Oct 24, 12:23 AM CDT	Tornado Warning	JAN	Claiborne, Jefferson	37 min
Oct 24, 12:37 AM CDT	Tornado Warning	JAN	Copiah	53 min
Oct 24, 12:59 AM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Warren	31 min
Oct 24, 1:05 AM CDT	Tornado Warning	JAN	Hinds, Madison	25 min
Oct 24, 1:14 AM CDT	Severe Thunderstorm Warning	JAN	Attala	31 min
Oct 24, 1:29 AM CDT	Tornado Warning	JAN	Madison	31 min
Oct 24, 1:32 AM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Hinds	28 min
Oct 24, 1:57 AM CDT	Tornado Warning	JAN	Rankin	33 min
Oct 24, 2:03 AM CDT	Severe Thunderstorm Warning	JAN	Madison	27 min
Oct 24, 2:08 AM CDT	Severe Thunderstorm Warning	JAN	Kemper	52 min
Oct 24, 4:31 PM CDT	Severe Thunderstorm Warning	JAN	Lamar	29 min
Oct 24, 4:34 PM CDT	Severe Thunderstorm Warning	JAN	Forrest	26 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.