Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 443, NWS Jackson, MS

July 15, 1997Franklin County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 15, 1997, 4:10 PM CDT for Franklin County, Mississippi. It was in force for 50 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
Jul 15, 1997, 4:10 PM CDT (21:10 UTC)
Expired
Jul 15, 1997, 5:00 PM CDT
In force
50 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Franklin County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.2 hours before the alert went out and 121 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-pSkew-T log-p diagram, Jackson, MS at 12:00Z on 1997-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 670 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 1997-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
670 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
1019 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
-31 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 152112 RRA
SVRJAN
MSC037-152200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
410 PM CDT TUE JUL 15 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  500 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST MISSISSIPPI
 
   ...EASTERN FRANKLIN COUNTY
 
AT 409 PM DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 5 MILES
NORTHEAST OF MCCALL CREEK...DRIFTING WEST AT 5 MPH. HAIL TO SIZE OF
NICKELS AND DAMAGING WINDS CAN BE EXPECTED WITH THIS STORM.
 
IF YOU ARE OUTSIDE...SEEK SHELTER IN A STRONG BUILDING AWAY FROM
WINDOWS.  DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND
DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
<
 
75

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 2:40 PM CDTSevere Thunderstorm WarningJANSmith35 min
Jul 15, 3:19 PM CDTSevere Thunderstorm WarningJANJasper41 min
Jul 15, 3:25 PM CDTSevere Thunderstorm WarningJANLincoln35 min
Jul 15, 3:52 PM CDTSevere Thunderstorm WarningJANRankin38 min
Jul 15, 4:30 PM CDTSevere Thunderstorm WarningJANLincoln45 min
Jul 15, 5:11 PM CDTSevere Thunderstorm WarningJANSmith49 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1997Every 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.