Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 271, NWS Jackson, MS

May 14, 1997Issaquena County, Mississippi; East Carroll Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at May 14, 1997, 4:44 PM CDT for Issaquena County, Mississippi; East Carroll Parish, Louisiana. It was in force for 31 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 14, 1997, 4:44 PM CDT (21:44 UTC)
Expired: May 14, 1997, 5:15 PM CDT
In force: 31 min
Issued by: NWS Jackson, MS
Area: Whole counties

Counties East Carroll Parish, LA, Issaquena 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
May 14, 4:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.7 hours before the alert went out and 107 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: 257 J/kg
Mixed-layer CIN: -113 J/kg
Mixed-layer LCL: 784 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 132 m²/s²
0-3 km storm-relative helicity: 144 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 142148 RRA
SVRJAN
LAC035-MSC055-142215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
444 PM CDT WED MAY 14 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  515 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST LOUISIANA
 
   ...EAST CARROLL PARISH
 
 
IN WEST CENTRAL MISSISSIPPI
 
   ...ISSAQUENA COUNTY
 
AT 444 PM A SEVERE THUNDERSTORM WAS LOCATED ABOUT 5 MILES NORTHWEST OF
LAKE PROVIDENCE MOVING EAST-SOUTHEAST AT 35 MPH. THIS STORM SHOULD CROSS
THE MISSISSIPPI RIVER BY 455 PM AND APPROACH THE FITLER AREA BY 505 PM.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH...PREPARE FOR
WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...AND DEADLY LIGHTNING.
PEOPLE OUTSIDE SHOULD SEEK SHELTER INSIDE A STRONG BUILDING.
<
 
75

The office that day

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

Issued	Product	Office	Counties	Lasted
May 14, 3:26 PM CDT	Severe Thunderstorm Warning	JAN	Leflore	49 min
May 14, 3:37 PM CDT	Severe Thunderstorm Warning	JAN	Sunflower	38 min
May 14, 3:53 PM CDT	Severe Thunderstorm Warning	JAN	Carroll	52 min
May 14, 4:10 PM CDT	Severe Thunderstorm Warning	JAN	Holmes	50 min
May 14, 4:34 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Webster	41 min
May 14, 4:57 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Holmes	48 min
May 14, 5:15 PM CDT	Tornado Warning	JAN	Attala	45 min
May 14, 5:23 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Yazoo	52 min
May 14, 5:36 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey	54 min
May 14, 5:44 PM CDT	Tornado Warning	JAN	Leake, Neshoba	46 min
May 14, 6:21 PM CDT	Severe Thunderstorm Warning	JAN	Montgomery	39 min
May 14, 6:26 PM CDT	Severe Thunderstorm Warning	JAN	Warren	34 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1997 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.