Alert archive / Louisiana / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 76, NWS Lake Charles, LA

August 15, 2002Cameron Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Aug 15, 2002, 10:53 AM CDT for Cameron Parish, Louisiana. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 15, 2002, 10:53 AM CDT (15:53 UTC)
Expired
Aug 15, 2002, 11:45 AM CDT
In force
52 min
Issued by
NWS Lake Charles, LA
Area
Counties, with a storm outline in the text

County Cameron Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 3.9 hours before the alert went out and 29 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, Lake Charles Mun, LA at 12:00Z on 2002-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 248 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, Lake Charles Mun, LA at 12:00Z on 2002-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.193958Sfc1 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
248 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
765 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
88 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.

728 
WUUS54 KLCH 151553 CCA
SVRLCH
LAC023-151645-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECT FOR LAT/LON
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1052 AM CDT THU AUG 15 2002

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CAMERON PARISH IN SOUTHWEST LOUISIANA

* UNTIL 1145 AM CDT

* AT 1044 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR CREOLE AND CAMERON...MOVING NORTHEAST AT  
  30 MPH.

* THIS STORM WILL BE NEAR...
  GRAND CHENIER 1110 AM CDT
  HACKBERRY BY 1115 AM CDT

SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 60 MPH...DESTRUCTIVE
HAIL...DEADLY LIGHTNING AND TORRENTIAL RAIN.

CALL 337-477-5285 TO REPORT SEVERE WEATHER TO THE WEATHER SERVICE.

LAT...LON 2984 9335 2970 9320 2992 9266 3003 9312

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 15, 6:18 AM CDTSpecial Marine WarningLCH57 min
Aug 15, 7:10 AM CDTSpecial Marine WarningLCH65 min
Aug 15, 8:13 AM CDTSpecial Marine WarningLCH62 min
Aug 15, 9:17 AM CDTSpecial Marine WarningLCH58 min
Aug 15, 10:11 AM CDTSpecial Marine WarningLCH64 min
Aug 15, 10:11 AM CDTSpecial Marine WarningLCH64 min
Aug 15, 10:51 AM CDTSevere Thunderstorm WarningLCHCameron54 min
Aug 15, 2:58 PM CDTSpecial Marine WarningLCH62 min
Aug 15, 5:28 PM CDTSpecial Marine WarningLCH62 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2002Every severe thunderstorm warning in 2002

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.