Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 21, NWS Jackson, MS

January 23, 1997Issaquena County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jan 23, 1997, 10:51 PM CST for Issaquena County, Mississippi. It was in force for 39 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jan 23, 1997, 10:51 PM CST (04:51 UTC)
Expired: Jan 23, 1997, 11:30 PM CST
In force: 39 min
Issued by: NWS Jackson, MS
Area: Whole counties

County Issaquena County, MS

What was reported inside it

Time	Report	Where	Remark
Jan 23, 11:10 PM CST	Hail 0.75	Valley Park, MS

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jan 23, 7:15 PM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 4.9 hours before the alert went out and 97 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: 249 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 485 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 249 m²/s²
0-3 km storm-relative helicity: 316 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 240454 RRA
SVRJAN
MSC055-240530-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1051 PM CST THU JAN 23 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1130 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL MISSISSIPPI
 
   ...ISSAQUENA COUNTY
 
AT 1048 PM CST DOPPLER RADAR IN JACKSON INDICATED A SHORT LINE OF SEVERE
THUNDERSTORMS MOVING INTO SOUTHERN ISSAQUENA COUNTY MOVING EAST NEAR 50
MPH. THIS LINE WILL AFFECT LAKE PROVIDENCE AND FILTER BY 1105 PM WITH
DAMAGING WINDS LIKELY.
 
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.
<
 
11

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 23, 11:05 PM CST	Severe Thunderstorm Warning	JAN	Warren	40 min
Jan 23, 11:05 PM CST	Severe Thunderstorm Warning	JAN	Humphreys, Sharkey	40 min
Jan 23, 11:14 PM CST	Severe Thunderstorm Warning	JAN	Yazoo	46 min
Jan 23, 11:28 PM CST	Severe Thunderstorm Warning	JAN	Madison	47 min
Jan 24, 12:13 AM CST	Severe Thunderstorm Warning	JAN	Attala, Leake	47 min
Jan 24, 4:06 AM CST	Severe Thunderstorm Warning	JAN	Jefferson Davis	39 min
Jan 24, 4:59 AM CST	Severe Thunderstorm Warning	JAN	Jones	31 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.