Alert archive / Louisiana / Flash Flood Warnings in 1999
Flash Flood Warning 24, NWS Lake Charles, LA
NWS Lake Charles, LA issued this flash flood warning at Apr 4, 1999, 7:58 AM CDT for Avoyelles Parish, Evangeline Parish, Louisiana. It was in force for 2 hr. 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 4, 1999, 7:58 AM CDT (12:58 UTC)
- Expired
- Apr 4, 1999, 10:00 AM CDT
- In force
- 2 hr
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
Counties Avoyelles Parish, LA, Evangeline Parish, LA
The radar
The Ft Polk radar (KPOE), 79 km from the middle of the area, began a volume at 12:59 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.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 1.0 hours before the alert went out and 129 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
- 1364 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 617 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 162 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 7.9
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this flash flood 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 flash flood warning went out at Apr 4, 3:38 AM CDT, 4 hours 20 minutes earlier.
Area forecast discussion, Apr 4, 3:38 AM CDT, 4 hours 20 minutes before
SOUTHWEST...CENTRAL LOUISIANA AND SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAKE CHARLES LA 338 AM CDT SUN APR 4 1999 TRAINING TSTMS WITH HVY RAIN CONTINUING FROM EXTREME E TX TO CEN LA STG UPR DIFLUENT STLT SIGNATURE OVR W LA APPEARS TO MATCH UP BEST WITH ETA UPPER WIND PROG WHICH HAS JET MAX OVR PSX...AREA IN LEFT FRONT QUAD. WILL GO WITH ETA WHICH HAS MUCH OF S LA IN HVY PCPN TDA TIL EARLY AFTERNOON WITH STG UVV...COORD WITH SIL TO KEEP FFA FOR AREA FROM BEAUREGARD TO ST LANDRY PARISHES NORTHWARD. WENT HIGHER ON POPS THAN NGM/MOS DUE TO STGR UPPER FORCING. ALTHO NGM AND ETA SEEM TO AGREE ON LOW POPS OF 10 PERCENT TNITE DUE TO NVA AND SOME CAPPING...WL TWEAK TO 20 PERCENT PER SIL COORD SINCE TIMING OF SYSTEMS COULD AFFECT EITHER SIDE OF TNITE. DUE TO ETA MOISTURE AND THETA RDGG AS WELL AS STG UPR DIFLUENCE AGAIN ON MON. ...EXTENDED...MRF NOT AVAIL TNITE. FAN SHOWING DRY WX LATE TUES AS RDG BUILDS IN. 11 BPT TT 078/070 080/058 077 715 LCH TT 079/070 081/059 077 726 LFT TT 080/068 079/062 078 726 AEX TT 078/067 080/062 078 725
In the hours before
Local storm report, Apr 4, 5:16 AM CDT, 2 hours 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
516 AM CDT SUN APR 4 1999
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0453 AM GLENMORA LA 0.75 INCH HAIL
04/04/99 RAPIDES
0134 AM 10 SE DE RIDDER LA FLOODING
04/04/99 BEAUREGARD LOW AREAS OF HIGHWAYS 111
AND 147 FLOODED. OTHER
SECONDARY ROADS ALSO
FLOODED.
0245 AM CRAVENS LA FLOODING
04/04/99 VERNON FLOODING OF LOW AREAS OF
COOPER CHURCH ROAD AND OF
HIGHWAY 10 EAST OF CRAVENS.
A CAR HAD TO BE PULLED OUT
OF HIGH WATER.Local storm report, Apr 4, 5:16 AM CDT, 2 hours 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
516 AM CDT SUN APR 4 1999
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0453 AM GLENMORA LA 0.75 INCH HAIL
04/04/99 RAPIDES
0134 AM 10 SE DE RIDDER LA FLOODING
04/04/99 BEAUREGARD LOW AREAS OF HIGHWAYS 111
AND 147 FLOODED. OTHER
SECONDARY ROADS ALSO
FLOODED.
0245 AM CRAVENS LA FLOODING
04/04/99 VERNON FLOODING OF LOW AREAS OF
COOPER CHURCH ROAD AND OF
HIGHWAY 10 EAST OF CRAVENS.
A CAR HAD TO BE PULLED OUT
OF HIGH WATER.Local storm report, Apr 4, 6:13 AM CDT, 1 hour 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
613 AM CDT SUN APR 4 1999
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0529 AM CHENEYVILLE LA 1.75 INCH HAIL
04/04/99 RAPIDESThe office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 1:23 AM CST | Flash Flood Warning | LCH | Rapides, Vernon | 3 hr |
| Apr 4, 1:23 AM CST | Flash Flood Warning | LCH | Beauregard | 3 hr |
| Apr 4, 4:40 AM CDT | Severe Thunderstorm Warning | LCH | Rapides | 65 min |
| Apr 4, 7:58 AM CDT | Flash Flood Warning | LCH | Allen, Beauregard, Rapides, Vernon | 2 hr |
| Apr 4, 10:30 AM CDT | Flash Flood Warning | LCH | Beauregard | 4 hr |
| Apr 4, 3:59 PM CDT | Severe Thunderstorm Warning | LCH | Vernon | 61 min |
| Apr 4, 4:05 PM CDT | Tornado Warning | LCH | Vernon | 55 min |
| Apr 4, 5:38 PM CDT | Severe Thunderstorm Warning | LCH | Rapides | 47 min |
| Apr 3, 6:51 PM CST | Flash Flood Warning | LCH | Tyler | 3 hr |
| Apr 4, 1:23 AM CST | Flash Flood Warning | LCH | Jasper, Newton, Tyler | 3 hr |
| Apr 4, 7:58 AM CDT | Flash Flood Warning | LCH | Jasper | 2 hr |
| Apr 4, 10:30 AM CDT | Flash Flood Warning | LCH | Tyler | 4 hr |
Nearby
Flash Flood Warnings in Louisiana, 1999Every flash flood warning in 1999
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; radar from the NEXRAD Level II archive.