Alert archive / Louisiana / Flash Flood Warnings in 1999
Flash Flood Warning 4, NWS Lake Charles, LA
NWS Lake Charles, LA issued this flash flood warning at Jan 7, 1999, 11:04 AM CST for Acadia Parish, Jefferson Davis 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
- Jan 7, 1999, 11:04 AM CST (17:04 UTC)
- Expired
- Jan 7, 1999, 1:15 PM CST
- In force
- 2 hr
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
Counties Acadia Parish, LA, Jefferson Davis Parish, LA
The radar
The Lake Charles radar (KLCH), 60 km from the middle of the area, began a volume at 17:07 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, 5.1 hours before the alert went out and 59 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
- 45 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 497 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 163 m²/s²
- 0-3 km storm-relative helicity
- 287 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLCH 071705 FFWLCH LAC001-053-071915- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAKE CHARLES LA 1104 AM CST THU JAN 7 1999 THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A * FLASH FLOOD WARNING FOR... ACADIA PARISH IN SOUTHWESTERN LOUISIANA JEFFERSON DAVIS PARISH IN SOUTHWESTERN LOUISIANA * UNTIL 115 PM CST * AT 1050 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATED THAT 4 TO 8 INCHES OF RAIN HAVE FALLEN ACROSS NORTHERN SECTIONS OF ACADIA AND JEFFERSON DAVIS PARISHES...MAINLY ALONG AND NORTH OF I-10 CORRIDOR...SINCE WEDNESDAY NIGHT. 1 TO 2 INCHES OF ADDITIONAL RAINFALL ARE EXPECTED ACROSS THE AREA THROUGH THIS EVENING. *JEFFERSON DAVIS SHERRIFS OFFICE REPORTED HIGHWAY 26 FLOODED FROM JUST NORTH OF JENNINGS TO ELTON. HIGHWAY 99 WAS REPORTED FLOODED 2 MILES NORTH OF WELSH. EMERGENCY MANAGEMENT PERSONNEL IN ACADIA PARISH REPORTED FLOODING ALONG SECTIONS OF LOURDES ROAD IN CHURCH POINT AND ALBERT VENABLE ROAD IN BRANCH. HEAVY RAINS FLOOD ROADS AND LOW LYING AREAS RAPIDLY...SO DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER OF AN UNKNOWN DEPTH COVERS THE ROAD. IF YOUR VEHICLE STALLS...ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL MEDIA FOR FURTHER UPDATES ON THIS LIFE THREATENING FLOOD EVENT. &
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 Jan 7, 8:35 AM CST, 2 hours 29 minutes earlier.
Area forecast discussion, Jan 7, 8:35 AM CST, 2 hours 29 minutes before
SOUTHWEST...CENTRAL LOUISIANA AND SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAKE CHARLES LA 835 AM CST THU JAN 7 1999 CURRENT SFC MAP SHOWS WARM FRONT IN NORTHERN LA WITH HEAVY TO TORRENTIAL RAINFALL CENTERED ALONG THE I-10 CORRIDOR OVERNIGHT WITH 12-HOUR TOTALS OF 4-6 OVER A LARGE AREA. THE HEAVIEST BAND OF RAIN IS MOVING SLOWLY NORTHWARD...BUT WITH 1-HOUR PCPN AMOUNTS OF 0.75 - 1.00 AND SATURATED GROUND...RIVER/FLASH FLOODING BEGINNING TO OCCUR. ADDITIONAL RAINFALL OF 2-4 IS PSBL ALONG AND NORTH OF I-10. COORD WITH NEW CONCERNING FLOOD WATCH. WILL INCREASE POPS FOR LCH AND LFT TO 70 1ST PERIOD. WILL TEMPS ALONE FOR NOW 18 LCH CE 070/060 072/056 056 743 LFT CE 070/060 073/057 057 743 AEX CE 064/059 070/053 053 543 BPT CE 070/060 070/055 055 543
The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 7, 8:03 AM CST | Flash Flood Warning | LCH | Acadia | 3 hr |
| Jan 7, 10:20 AM CST | Flash Flood Warning | LCH | Evangeline, Saint Landry | 3 hr |
| Jan 7, 10:20 AM CST | Flash Flood Warning | LCH | Lafayette, Saint Martin | 3 hr |
| Jan 7, 1:30 PM CST | Flash Flood Warning | LCH | Acadia, Evangeline, Jefferson Davis | 3 hr |
| Jan 7, 1:30 PM CST | Flash Flood Warning | LCH | Lafayette, Saint Landry, Saint Martin | 3 hr |
| Jan 7, 3:23 PM CST | Severe Thunderstorm Warning | LCH | Vernon | 47 min |
| Jan 7, 4:23 PM CST | Tornado Warning | LCH | Rapides, Vernon | 32 min |
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.