Alert archive / Louisiana / Tornado Watches in 2000
Tornado Watch 147
The Storm Prediction Center issued this tornado watch at Apr 2, 2000, 6:00 PM CDT for 13 parishes in Louisiana; 10 counties in Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 2, 2000, 6:00 PM CDT (23:00 UTC)
- Expired
- Apr 3, 2000, 12:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 23 counties
Acadia Parish, LA, Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Calcasieu Parish, LA, Cameron Parish, LA, Evangeline Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Pointe Coupee Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, Vermilion Parish, LA, Chambers County, TX, Galveston County, TX, Hardin County, TX, Jasper County, TX, Jefferson County, TX, Liberty County, TX, Newton County, TX, Orange County, TX, San Jacinto County, TX, Tyler County, TX
The radar
The Lake Charles radar (KLCH), 56 km from the middle of the area, began a volume at 23:02 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.
Warnings issued inside it
14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 6:07 PM CDT | Tornado Warning | LCH | Cameron | 68 min |
| Apr 2, 6:12 PM CDT | Severe Thunderstorm Warning | LCH | Allen | 48 min |
| Apr 2, 6:21 PM CDT | Severe Thunderstorm Warning | LCH | Evangeline, Saint Landry | 54 min |
| Apr 2, 6:46 PM CDT | Severe Thunderstorm Warning | LCH | Calcasieu | 59 min |
| Apr 2, 7:07 PM CDT | Severe Thunderstorm Warning | LCH | Avoyelles | 68 min |
| Apr 2, 7:11 PM CDT | Severe Thunderstorm Warning | LIX | Pointe Coupee, West Feliciana | 49 min |
| Apr 2, 7:18 PM CDT | Severe Thunderstorm Warning | LCH | Jefferson Davis | 57 min |
| Apr 2, 7:25 PM CDT | Severe Thunderstorm Warning | LCH | Saint Landry | 65 min |
| Apr 2, 7:44 PM CDT | Severe Thunderstorm Warning | LCH | Acadia, Evangeline | 61 min |
| Apr 2, 8:29 PM CDT | Severe Thunderstorm Warning | LCH | Saint Landry | 61 min |
| Apr 2, 8:55 PM CDT | Severe Thunderstorm Warning | LIX | Pointe Coupee, West Feliciana | 50 min |
| Apr 2, 10:59 PM CDT | Severe Thunderstorm Warning | LCH | Beauregard | 61 min |
| Apr 2, 11:03 PM CDT | Severe Thunderstorm Warning | LCH | Jasper | 42 min |
| Apr 2, 11:56 PM CDT | Severe Thunderstorm Warning | LCH | Allen, Rapides | 64 min |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 11.0 hours before the alert went out and 58 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
- 984 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 512 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.7
The text
As transmitted, in the capitals the NWS used until 2016.
544 WWUS9 KMKC 022244 SEL7 SEL7 MKC WW 022244 LAZ000-TXZ000-CWZ000-030500- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 147 STORM PREDICTION CENTER NORMAN OK 544 PM CDT SUN APR 2 2000 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF SOUTHERN LOUISIANA SOUTHEASTERN TEXAS COASTAL WATERS EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 600 PM UNTIL MIDNIGHT CDT. TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 55 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 10 MILES NORTH OF HOUSTON TEXAS TO 40 MILES NORTHEAST OF LAFAYETTE LOUISIANA. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO WATCH NUMBER 144. WATCH NUMBER 144 WILL NOT BE IN EFFECT AFTER 600 PM CDT. CONTINUE...WW 145...WW 146... DISCUSSION...EMBEDDED SUPERCELLS CONTINUE TO DEVELOP WITHIN CONVECTIVE CLUSTER AS ACTIVITY CONTINUES MOVING ALONG SURFACE BOUNDARY. WHILE WIND SHEAR IS MARGINAL FOR SUPERCELLS...HIGH AMOUNTS OF INSTABILITY AND WARM MOIST AIR IN THE LOWER LEVELS WILL SUPPORT A ISOLATED TORNADOES. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 24035. ...ROGASH 294,0913 290,0951 303,0951 312,0913
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 1:30 AM CST | Severe Thunderstorm Watch | SPC | Beauregard, Bienville, De Soto, Grant, Natchitoches, Rapides and 4 more | 6 hr |
| Apr 2, 4:00 AM CDT | Severe Thunderstorm Watch | SPC | Bienville, Caldwell, Catahoula, East Carroll, Franklin, Grant and 11 more | 4 hr |
| Apr 2, 12:30 PM CDT | Tornado Watch | SPC | Acadia, Allen, Beauregard, Calcasieu, Cameron, Evangeline and 5 more | 6 hr |
| Apr 2, 3:00 PM CDT | Tornado Watch | SPC | Catahoula, Concordia, East Carroll, Franklin, Madison, Richland and 2 more | 6 hr |
| Apr 1, 8:00 PM CST | Severe Thunderstorm Watch | SPC | Atascosa, Bastrop, Bee, Bexar, Blanco, Caldwell and 25 more | 6 hr |
Nearby
Tornado Watches in Louisiana, 2000Tornado Watches in Texas, 2000Every tornado watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.