Alert archive / Louisiana / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 98, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 12, 2000, 9:23 AM CDT for Calcasieu Parish, Louisiana. It was in force for 67 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
- Apr 12, 2000, 9:23 AM CDT (14:23 UTC)
- Expired
- Apr 12, 2000, 10:30 AM CDT
- In force
- 67 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
County Calcasieu Parish, LA
The radar
The Lake Charles radar (KLCH), 18 km from the middle of the area, began a volume at 14:26 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 |
|---|---|---|---|
| Apr 12, 10:00 AM CDT | Hail 0.75 | Vinton, 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 12:00Z, 2.4 hours before the alert went out and 19 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
- 1108 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 502 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
939 WUUS54 KLCH 121424 SVRLCH LAC019-121530- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LAKE CHARLES LA 923 AM CDT WED APR 12 2000 THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CALCASIEU PARISH IN SOUTHWEST LOUISIANA * UNTIL 1030 AM CDT * AT 921 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES SOUTH OF VINTON...MOVING NORTHEAST AT 15 MPH. * THIS STORM WILL BE NEAR... VINTON BY 930 AM CDT CARLYSS BY 1000 AM CDT SULPHUR BY 1005 AM CDT GILLIS...MOSS BLUFF...WESTLAKE BY 1025 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.
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 12, 9:05 AM CDT, 18 minutes earlier.
Area forecast discussion, Apr 12, 9:05 AM CDT, 18 minutes before
SOUTHEAST TEXAS AND SOUTHWEST LOUISIANA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE LAKE CHARLES LA 905 AM CDT WED APR 12 2000 WITH DECENT POSITIVE VORTICITY ADVECTION MOVING THROUGH THE AREA AND SUCH CLOSE PROXIMITY TO THE SURFACE LOW...CHANCES FOR PRECIPITATION WILL BE INCREASED FOR THE ENTIRE COUNTY WARNING AREA. WILL REMOVE MORNING FOG WORDING WHEN CONDITIONS WARRANT IT. HEAVY RAINS LIKELY AS FRONTAL BOUNDARY SERVES AS FOCUSING MECHANISM TODAY. .LCH... LA...NONE TX...NONE UPDATED PRELIMINARY NUMBERS LCH 75/57/74/58 7520 LFT 75/59/75/58 7530 AEX 68/56/73/55 9520 BPT 75/59/75/61 7520 22/11
In the hours before
Special weather statement, Apr 12, 5:10 AM CDT, 4 hours 13 minutes before
LAZ027>033-041>045-051>055-TXZ180>182-201-215-216-122000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LAKE CHARLES LA 510 AM CDT WED APR 12 2000 ...SEVERE THUNDERSTORMS POSSIBLE ACROSS SOUTHEAST TEXAS...CENTRAL AND SOUTHERN LOUISIANA TODAY AND TONIGHT... A COLD FRONT EXTENDING OVER CENTRAL LOUISIANA WILL SLOWLY MOVE SOUTH THIS AFTERNOON AND TONIGHT. A SURFACE LOW WILL DEVELOP AND MOVE ALONG THE FRONT DURING THIS TIME ALSO. AS A RESULT...SOUTHERLY FLOW WILL CONTINUE TO PUMP LOW LEVEL MOISTURE INTO THE AREA. THIS WILL COMBINE WITH DAYTIME HEATING AND UPPER LEVEL SUPPORT TO SET THE STAGE FOR THUNDERSTORMS...WITH A FEW STORMS BECOMING SEVERE THIS AFTERNOON. THE MAIN THREAT FROM THESE THUNDERSTORMS WILL BE IN THE FORM OF LARGE HAIL AND DAMAGING DOWNBURST WINDS. A FEW SMALL TORNADOES MAY OCCUR...AS THEY ARE ALWAYS POSSIBLE WITH ANY SEVERE WEATHER EVENT. LOCALIZED RAINFALL AMOUNTS OF ONE TO TWO INCHES WILL BE POSSIBLE AS WELL. HOWEVER WIDESPREAD FLOODING IS NOT EXPECTED WITH THIS SYSTEM. ALL INTERESTS IN SOUTHEAST TEXAS...CENTRAL...AND SOUTHERN LOUISIANA SHOULD MONITOR NOAA WEATHER RADIO AND LOCAL MEDIA FOR UPDATES ON THIS WEATHER SITUATION. ACTIVATION OF SKY WARN SPOTTERS MAY BE POSSIBLE THIS AFTERNOON AND EVENING AS WELL. MORE INFORMATION CAN BE FOUND ON THE NATIONAL WEATHER SERVICE LAKE CHARLES WEB-SITE AT WWW.SRH.NOAA.GOV/LCH. 8
The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 10:32 AM CDT | Severe Thunderstorm Warning | LCH | Beauregard, Calcasieu | 58 min |
| Apr 12, 11:08 AM CDT | Severe Thunderstorm Warning | LCH | Cameron | 67 min |
| Apr 12, 11:24 AM CDT | Severe Thunderstorm Warning | LCH | Calcasieu | 36 min |
| Apr 12, 11:36 AM CDT | Severe Thunderstorm Warning | LCH | Jefferson Davis | 54 min |
| Apr 12, 11:45 AM CDT | Severe Thunderstorm Warning | LCH | Allen | 60 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2000Every severe thunderstorm warning in 2000
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.