Alert archive / Louisiana / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 18, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 8, 2002, 4:09 AM CDT for Jefferson Davis Parish, Louisiana. It was in force for 51 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
- Apr 8, 2002, 4:09 AM CDT (09:09 UTC)
- Expired
- Apr 8, 2002, 5:00 AM CDT
- In force
- 51 min
- Issued by
- NWS Lake Charles, LA
- Area
- Counties, with a storm outline in the text
County Jefferson Davis Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 8, 4:42 AM CDT | Thunderstorm Wind | Jennings, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 8, 1:15 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 9.2 hours before the alert went out and 39 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
- 645 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 735 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 193 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KLCH 080909 SVRLCH LAC053-081000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LAKE CHARLES LA 405 AM CDT MON APR 8 2002 THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... JEFFERSON DAVIS PARISH IN SOUTHWEST LOUISIANA * UNTIL 500 AM CDT * AT 353 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE SEVERE THUNDERSTORMS THAT EXTENDED FROM 10 MILES NORTHWEST OF FENTON TO SOUTH OF WOODLAWN...MOVING SOUTHEAST AT 25 MPH. * THIS STORM WILL BE NEAR... FENTON BY 410 AM CDT WELSH BY 430 AM CDT JENNINGS BY 445 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 3042 9303 3019 9296 3010 9265 3044 9264 K. KUYPER
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 8, 2:30 AM CDT, 1 hour 39 minutes earlier.
Area forecast discussion, Apr 8, 2:30 AM CDT, 1 hour 39 minutes before
SOUTHWEST LOUISIANA AND SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
230 AM CDT MON APR 8 2002
MOISTURE HAS SLOWLY INCREASED WITH A FAIRLY STRONG SOUTHERLY FLOW
FROM THE GULF. THE LCH SOUNDING LAST NIGHT SHOWED A PRECIP WATER OF
1.61 AND A TOTAL TOTALS OF 46. BOUNDARY LAYER RHS WILL CONTINUE TO
INCREASE TODAY WITH A PRETTY GOOD LOW LEVEL JET CAUSING STRONG
SOUTHERLY WINDS. THIS SYSTEM WILL MOVE EVEN CLOSER TODAY INCREASING
THE CHANCES FOR RAIN. HIGH OMEGAS TODAY WILL CONTINUE TO CAUSE A
CHANCE FOR SEVERE WEATHER THIS MORNING. WINDS WILL BE VERY STRONG
FROM THE SOUTH TODAY WITH AN APPROACHING LOW PRESSURE SYSTEM FROM
TEXAS. TEMPERATURES WILL INCREASE RAPIDLY TODAY WITH GOOD WAA
EXPECTED. HOWEVER...DUE TO THE INCREASE CLOUD COVER HIGH
TEMPERATURES WILL NOT INCREASE AS RAPIDLY AS THEY NORMALLY WOULD. A
COLD FRONT WILL MOVE THROUGH THE AREA MONDAY NIGHT CAUSING A DRIER
AND MORE STABLE AIRMASS. RHS ARE LESS THAN 30 PERCENT FOR MOST
LEVELS ON TUESDAY.
MARINE...BOY035 SHOWS A SOUTHEAST WIND OF 16 KNOTS WITH 6 FOOT
SEAS. THE WINDS AND SEAS WILL CONTINUE TO BE STRONG TODAY FROM THE
SOUTH WITH AN APPROACHING LOW PRESSURE SYSTEM FROM TEXAS. THE LOW
PRESSURE SYSTEM WITH AN ASSOCIATED COLD FRONT WILL MOVE THROUGH THE
AREA TONIGHT CAUSING THE WIND TO SHIFT FROM THE NORTHWEST. A
SCA IS IN EFFECT AND WILL LIKELY CONTINUE THROUGH TODAY.
LONG TERM...DRY AND STABLE AIR WILL CONTINUE THROUGH THE END OF THE
WEEK. MOISTURE WILL INCREASE WITH A SOUTHEAST FLOW BY FRIDAY
CAUSING A CHANCE FOR SHOWERS OR THUNDERSTORMS.
.LCH...SMALL CRAFT ADVISORY...GMZ450-455-470-475.
.PRELIMINARY NUMBERS...
MO TU WE M T W
AEX 73/62/79/58/79 83000
BPT 76/64/81/60/81 82000
LCH 75/64/81/60/81 82000
LFT 74/64/81/63/81 84000
55The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 2:49 AM CDT | Severe Thunderstorm Warning | LCH | Beauregard, Vernon | 56 min |
| Apr 8, 3:09 AM CDT | Special Marine Warning | LCH | 111 min | |
| Apr 8, 3:36 AM CDT | Severe Thunderstorm Warning | LCH | Allen, Beauregard | 54 min |
| Apr 8, 3:54 AM CDT | Severe Thunderstorm Warning | LCH | Calcasieu, Jefferson Davis | 66 min |
| Apr 8, 4:08 AM CDT | Severe Thunderstorm Warning | LCH | Evangeline, Rapides | 52 min |
| Apr 8, 4:25 AM CDT | Severe Thunderstorm Warning | LCH | Avoyelles | 65 min |
| Apr 8, 4:30 AM CDT | Severe Thunderstorm Warning | LCH | Allen | 30 min |
| Apr 8, 10:14 AM CDT | Special Marine Warning | LCH | 61 min | |
| Apr 8, 11:24 AM CDT | Flash Flood Warning | LCH | Iberia, Vermilion | 3 hr |
| Apr 8, 2:06 PM CDT | Special Marine Warning | LCH | 69 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.