Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 18, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 5, 1997, 2:10 AM CST for St. Mary Parish, Louisiana. It was in force for 35 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
- Apr 5, 1997, 2:10 AM CST (08:10 UTC)
- Expired
- Apr 5, 1997, 2:45 AM CST
- In force
- 35 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
County St. Mary Parish, LA
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 8.2 hours before the alert went out and 175 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.
- Mixed-layer CAPE
- 1185 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 530 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 267 m²/s²
- 0-3 km storm-relative helicity
- 316 m²/s²
- Significant tornado parameter
- 1.8
- Supercell composite
- 8.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLCH 050811 RRA SVRLCH LAC101-050845- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LAKE CHARLES LA 210 AM CST SAT APR 5 1997 THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 245 AM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL LOUISIANA ...ST. MARY PARISH AND ADJACENT COASTAL WATERS AT 210 AM CST...NEXRAD DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES SOUTHWEST OF MORGAN CITY. MOVEMENT WAS TO THE NORTHEAST AT 50 MPH. WIND GUSTS IN EXCESS OF 60 MPH CAN BE EXPECTED WITH THIS STORM. PATTERSON AND MORGAN CITY ARE IN THE PATH OF THIS STORM. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Lake Charles, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 5, 1:49 AM CST, 21 minutes earlier.
Area forecast discussion, Apr 5, 1:49 AM CST, 21 minutes before
SOUTHEAST TEXAS..SOUTHWEST AND CENTRAL LOUISIANA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAKE CHARLES LA 245 AM CST SAT APR 5 1997 S PORTION OF THE LINE OF TSTMS CURRENTLY PULSING...AND WITH KLCH VWP SHOWING 65 KTS AT 2 KFT...SVR GUSTS A GOOD BET. AS FAR AS FORECAST IS CONCERNED...MODELS ARE IN DECENT AGREEMENT. BOTH SHOW FA IN RR QUAD OF UPPER LEVEL JET AROUND 12Z. RAIN CHC WILL END ACROSS SE TX SHORTLY AFTER SUNRISE AND BY MID-MORNING FOR LA FA. TOOK A BLEND OF GUID TEMPS. 1 BPT 79/57/81 3(EARLY)00 LCH 77/55/80 6(EARLY)00 LFT 77/55/81 8(AM)00 AEX 77/52/80 8(AM)00
The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 5, 3:01 AM CST | Severe Thunderstorm Warning | LCH | Calcasieu, Cameron | 59 min |
| Apr 5, 3:01 AM CST | Severe Thunderstorm Warning | LCH | Beauregard, Vernon | 59 min |
| Apr 5, 4:05 AM CST | Severe Thunderstorm Warning | LCH | Beauregard, Calcasieu | 55 min |
| Apr 5, 5:27 AM CST | Severe Thunderstorm Warning | LCH | Rapides | 63 min |
| Apr 5, 6:38 AM CST | Severe Thunderstorm Warning | LCH | Lafayette, Saint Landry | 52 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 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.