Alert archive / Louisiana / Tornado Watches in 2000
Tornado Watch 153
The Storm Prediction Center issued this tornado watch at Apr 3, 2000, 4:45 AM CDT for 17 parishes in Louisiana; Adams County, Wilkinson County, Mississippi. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 3, 2000, 4:45 AM CDT (09:45 UTC)
- Expired
- Apr 3, 2000, 10:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
Counties Acadia Parish, LA, Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Calcasieu Parish, LA, Cameron Parish, LA, Concordia Parish, LA, Evangeline Parish, LA, Grant Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Pointe Coupee Parish, LA, Rapides Parish, LA, Saint Landry Parish, LA, Vermilion Parish, LA, Vernon Parish, LA, West Feliciana Parish, LA, Adams County, MS, Wilkinson County, MS
The radar
The Lake Charles radar (KLCH), 55 km from the middle of the area, began a volume at 09:45 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
17 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 4:45 AM CDT | Severe Thunderstorm Warning | LCH | Calcasieu | 60 min |
| Apr 3, 5:00 AM CDT | Tornado Warning | LCH | Calcasieu | 60 min |
| Apr 3, 5:22 AM CDT | Tornado Warning | LCH | Jefferson Davis | 53 min |
| Apr 3, 5:32 AM CDT | Severe Thunderstorm Warning | LCH | Cameron | 58 min |
| Apr 3, 5:43 AM CDT | Severe Thunderstorm Warning | JAN | Catahoula, Concordia | 47 min |
| Apr 3, 5:51 AM CDT | Severe Thunderstorm Warning | LCH | Acadia, Allen, Evangeline, Jefferson Davis | 54 min |
| Apr 3, 5:51 AM CDT | Severe Thunderstorm Warning | LCH | Saint Landry | 54 min |
| Apr 3, 6:09 AM CDT | Tornado Warning | LCH | Acadia | 66 min |
| Apr 3, 6:10 AM CDT | Severe Thunderstorm Warning | JAN | Adams | 35 min |
| Apr 3, 6:34 AM CDT | Severe Thunderstorm Warning | LCH | Lafayette | 56 min |
| Apr 3, 6:38 AM CDT | Severe Thunderstorm Warning | LCH | Lafayette | 67 min |
| Apr 3, 6:39 AM CDT | Tornado Warning | JAN | Adams | 36 min |
| Apr 3, 6:49 AM CDT | Severe Thunderstorm Warning | LCH | Saint Landry | 56 min |
| Apr 3, 6:55 AM CDT | Severe Thunderstorm Warning | LIX | Pointe Coupee, West Feliciana | 80 min |
| Apr 3, 6:57 AM CDT | Severe Thunderstorm Warning | LCH | Vermilion | 63 min |
| Apr 3, 7:37 AM CDT | Tornado Warning | LIX | East Baton Rouge, East Feliciana, Pointe Coupee, West Feliciana | 38 min |
| Apr 3, 7:53 AM CDT | Tornado Warning | LIX | East Feliciana, West Feliciana | 67 min |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 9.8 hours before the alert went out and 54 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
- 656 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 541 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 251 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 9.2
The text
As transmitted, in the capitals the NWS used until 2016.
826 WWUS9 KMKC 030923 SEL3 SEL3 MKC WW 030923 LAZ000-CWZ000-031500- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 153 STORM PREDICTION CENTER NORMAN OK 423 AM CDT MON APR 3 2000 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF CENTRAL AND SOUTHWEST LOUISIANA COASTAL WATERS EFFECTIVE THIS MONDAY MORNING FROM 445 AM UNTIL 1000 AM 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 60 STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTH SOUTHEAST OF LAKE CHARLES LOUISIANA TO 25 MILES NORTHEAST OF ALEXANDRIA 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 SEVERE THUNDERSTORM WATCH NUMBER 151. WATCH NUMBER 151 WILL NOT BE IN EFFECT AFTER 445 AM CDT. CONTINUE...WW 152... DISCUSSION...BAND OF SEVERE STORMS FROM WEST CENTRAL LA INTO EXTREME SERN TX IS EXPECTED TO MOVE EWD NEXT SEVERAL HOURS. VAD WINDS SHOW VERY STRONG DEEP LAYER SHEAR AND SUFFICIENT HELICITY FOR THREAT OF SUPERCELLS AND POSSIBLE 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 24045. ...WEISS 293,0940 313,0930 313,0905 293,0920
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 7:30 PM CDT | Tornado Watch | SPC | Ascension, East Baton Rouge, East Feliciana, Iberville, Livingston, Saint Helena and 4 more | 7 hr |
| Apr 2, 11:30 PM CDT | Severe Thunderstorm Watch | SPC | Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Caldwell and 12 more | 6 hr |
| Apr 3, 2:00 AM CDT | Severe Thunderstorm Watch | SPC | Madison, Tensas, West Feliciana | 6 hr |
| Apr 3, 7:00 AM CDT | Tornado Watch | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberia, Iberville and 13 more | 5 hr |
| Apr 3, 10:30 AM CDT | Tornado Watch | SPC | Clarke, George, Greene, Harrison, Jackson, Wayne | 6 hr |
Nearby
Tornado Watches in Louisiana, 2000Tornado Watches in Mississippi, 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.