Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 452, NWS Jackson, MS

July 23, 1997Rankin County, Simpson County, Smith County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 23, 1997, 5:53 PM CDT for Rankin County, Simpson County, Smith County, Mississippi. It was in force for 37 min. 2 reports 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: Jul 23, 1997, 5:53 PM CDT (22:53 UTC)
Expired: Jul 23, 1997, 6:30 PM CDT
In force: 37 min
Issued by: NWS Jackson, MS
Area: Whole counties

Counties Rankin County, MS, Simpson County, MS, Smith County, MS

What was reported inside it

Time	Report	Where	Remark
Jul 23, 6:05 PM CDT	Thunderstorm Wind	D Lo, MS	Several trees were blown down.
Jul 23, 6:25 PM CDT	Thunderstorm Wind	Burns, MS	Several trees were blown down.

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 nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.9 hours before the alert went out and 39 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: 1077 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 1134 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -40 m²/s²
0-3 km storm-relative helicity: -25 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 232253 RRA
SVRJAN
MSC121-127-129-232330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
553 PM CDT WED JUL 23 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  630 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL MISSISSIPPI
 
   ...SOUTHEASTERN RANKIN COUNTY...NORTHEASTERN SIMPSON COUNTY
   ...WESTERN SMITH COUNTY
 
AT 553 PM DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR PUCKETT.
THE STORM WAS MOVING SLOWLY SOUTHEAST AT 5 TO 10 MPH. LARGE HAIL...
DAMAGING WINDS...AND LOCALIZED FLOODING ARE LIKELY WITH THIS STORM.
 
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.
<
69

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 7:29 PM CDT	Severe Thunderstorm Warning	JAN	Washington	46 min
Jul 23, 4:49 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	41 min
Jul 23, 5:03 PM CDT	Flash Flood Warning	JAN	Lamar	117 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.