Alert archive / Louisiana / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 55, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Jul 23, 2002, 6:06 PM CDT for Allen Parish, Louisiana. It was in force for 29 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 23, 2002, 6:06 PM CDT (23:06 UTC)
- Expired
- Jul 23, 2002, 6:35 PM CDT
- In force
- 29 min
- Issued by
- NWS Lake Charles, LA
- Area
- Counties, with a storm outline in the text
County Allen Parish, LA
The radar
The Lake Charles radar (KLCH), 66 km from the middle of the area, began a volume at 23:08 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 23, 6:21 PM CDT | Thunderstorm Wind | Kinder, LA |
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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 11.1 hours before the alert went out and 66 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
- 1339 J/kg
- Mixed-layer CIN
- -101 J/kg
- Mixed-layer LCL
- 934 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KLCH 232306
SVRLCH
LAC003-232335-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
604 PM CDT TUE JUL 23 2002
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
ALLEN PARISH IN SOUTHWEST LOUISIANA
* UNTIL 635 PM CDT
* AT 604 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 6 MILES WEST OF OBERLIN...MOVING SOUTH AT
10 MPH.
* THIS STORM WILL BE NEAR...
RURAL EASTERN ALLEN PARISH
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 3070 9259 3064 9294 3045 9306 3046 9279
3051 9278 3050 9264 3057 9260What 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 Jul 23, 4:35 PM CDT, 1 hour 31 minutes earlier.
Area forecast discussion, Jul 23, 4:35 PM CDT, 1 hour 31 minutes before
SOUTHWEST LOUISIANA AND SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
435 PM CDT TUE JUL 23 2002
LOOKS LIKE A REPEAT OF LAST NIGHT MAY BE SETTING UP ACROSS THE
REGION WITH THUNDERSTORM ACTIVITY DEVELOPING A LITTLE EARLIER THAN
EXPECTED.
THE FOCUS OF THUNDERSTORM DEVELOPMENT WILL LIKELY OCCUR WHERE
NUMEROUS OUTFLOWS CONVERGE AND SIGNIFICANT LIFT OCCURS.
THE STRONGEST OUTFLOW CONVERGENCE NEAR ALLEN AND BEAUREGARD
PARISHES WILL BE THE MAIN FOCUS OF STRONG THUNDERSTORM DEVELOPMENT
INITIALLY THIS AFTERNOON WITH FUTURE DEVELOPMENT EXPECTED FURTHER
SOUTH AS THE EVENING PROGRESSES.
WILL UPDATE THE ZONES ACCORDINGLY.
.LCH...NONE.
.UPDATED NUMBERS...
WE TH FR SA T W T F
BPT 74/94 75/94 76/94 77 4313242
LCH 75/94 74/93 76/93 77 4413342
LFT 75/94 76/94 75/93 77 2425252
AEX 74/93 74/92 74/95 76 4425341
MAYEAUX/ALLENThe office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 7:07 PM CDT | Severe Thunderstorm Warning | LCH | Saint Landry | 53 min |
| Jul 22, 7:16 PM CDT | Severe Thunderstorm Warning | LCH | Evangeline | 59 min |
| Jul 22, 7:27 PM CDT | Severe Thunderstorm Warning | LCH | Vernon | 63 min |
| Jul 22, 7:46 PM CDT | Severe Thunderstorm Warning | LCH | Allen | 59 min |
| Jul 22, 8:09 PM CDT | Severe Thunderstorm Warning | LCH | Acadia | 66 min |
| Jul 22, 8:26 PM CDT | Severe Thunderstorm Warning | LCH | Jefferson Davis | 64 min |
| Jul 22, 8:31 PM CDT | Severe Thunderstorm Warning | LCH | Beauregard | 59 min |
| Jul 22, 8:57 PM CDT | Severe Thunderstorm Warning | LCH | Vermilion | 63 min |
| Jul 22, 10:00 PM CDT | Special Marine Warning | LCH | 60 min | |
| Jul 23, 5:03 PM CDT | Severe Thunderstorm Warning | LCH | Allen | 62 min |
| Jul 23, 5:28 PM CDT | Special Marine Warning | LCH | 62 min | |
| Jul 23, 5:44 PM CDT | Severe Thunderstorm Warning | LCH | Avoyelles, Rapides | 61 min |
| Jul 23, 6:05 PM CDT | Severe Thunderstorm Warning | LCH | Allen | 30 min |
| Jul 23, 6:28 PM CDT | Severe Thunderstorm Warning | LCH | Jefferson Davis | 62 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.