Alert archive / Louisiana / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 98, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at May 31, 1999, 7:10 PM CDT for Lafayette Parish, Louisiana. It was in force for 65 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 31, 1999, 7:10 PM CDT (00:10 UTC)
- Expired
- May 31, 1999, 8:15 PM CDT
- In force
- 65 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
County Lafayette Parish, LA
The radar
The Lake Charles radar (KLCH), 111 km from the middle of the area, began a volume at 00:12 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 |
|---|---|---|---|
| May 31, 7:30 PM CDT | Thunderstorm Wind | Lafayette, 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.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 0.2 hours before the alert went out and 110 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
- 2405 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 895 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 114 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 7.3
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 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 May 31, 1:56 PM CDT, 5 hours 14 minutes earlier.
Area forecast discussion, May 31, 1:56 PM CDT, 5 hours 14 minutes before
SOUTHWEST AND CENTRAL LOUISIANA/SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAKE CHARLES LA 156 PM CDT MON MAY 31 1999 MCS CURRENTLY MAKING ITS WAY ACROSS NE TX AND NW LA WILL CONTINUE ITS TREK TO THE SOUTH THIS EVENING. IT HAS SHOWN A WEAKENING TREND OVER THE LAST COUPLE OF HOURS. HOWEVER...IT WILL MAKE ITS WAY INTO THE LCH CWA IN SOME FORM OR ANOTHER. WL LEAVE POPS IN THE CHC CAT THIS EVENING DUE THE MCS. THE MODELS ARE IN PRETTY GUD AGREEMENT ABOUT THE REMAINDER OF THE FP WITH THE 5H BUILDING ACROSS OLD MEXICO AND INTO THE FA AND THE 5H LOW DIGGING FROM THE CENTRAL GULF INTO THE BAY OF CAMPECHE. AT THE SFC...WEAK HIGH PRESSURE WILL REMAIN ENTRENCHED OVER THE FA. WHAT DOES THIS MEAN FOR THE LCH FA? WELL..AFTER A CHANCE OF SHRA AND TSRA THIS EVENING. THE POP FOR THE FA WILL BE MINIMAL. WL STICK PRETTY CLOSE TO FWC TEMPERATURES. 10 LCH 71/88/72/88 3000 AEX 70/89/71/90 3000 BPT 73/89/73/89 3000 LFT 70/88/72/89 3000
In the hours before
Local storm report, May 31, 6:35 PM CDT, 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
635 PM CDT MON MAY 31 1999
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0626 PM LAFAYETTE LA 1.75 INCH HAIL
05/31/99 LAFAYETTE GOLFBALL SIZE HAIL REPORTED
BY MEDIA. TREES DOWN
REPORTED BY PRIVATE
METEOROLOGIST.
0511 PM 2 S DRY CREEK LA WIND DAMAGE
05/31/99 BEAUREGARD TREES DOWN REPORTED BY
SHERIFFS DEPARTMENT.Local storm report, May 31, 6:35 PM CDT, 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
635 PM CDT MON MAY 31 1999
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0626 PM LAFAYETTE LA 1.75 INCH HAIL
05/31/99 LAFAYETTE GOLFBALL SIZE HAIL REPORTED
BY MEDIA. TREES DOWN
REPORTED BY PRIVATE
METEOROLOGIST.
0511 PM 2 S DRY CREEK LA WIND DAMAGE
05/31/99 BEAUREGARD TREES DOWN REPORTED BY
SHERIFFS DEPARTMENT.The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 7:03 PM CDT | Flash Flood Warning | LCH | Lafayette | 62 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 1999Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.