Alert archive / Louisiana / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 17, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Mar 17, 1987, 8:42 AM CST for Vernon Parish, Louisiana. It was in force for 63 min.
The area
The counties it named.
The facts
- Issued
- Mar 17, 1987, 8:42 AM CST (14:42 UTC)
- Expired
- Mar 17, 1987, 9:45 AM CST
- In force
- 63 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
County Vernon Parish, LA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 2.7 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
- 133 J/kg
- Mixed-layer CIN
- -270 J/kg
- Mixed-layer LCL
- 658 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 544 m²/s²
- 0-3 km storm-relative helicity
- 810 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
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.
In the hours before
Special weather statement, Mar 17, 3:14 AM CST, 5 hours 28 minutes before
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SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PORT ARTHUR TX 720 AM CST TUE MAR 17 1987 ...TORNADO WATCH FOR EAST AND SOUTHEAST TEXAS AND ADJOINING WATERS OF JEFFERSON COUNTY... A TORNADO WATCH HAS BEEN ISSUED FROM 715 AM CST THIS TUESDAY MORNING AND AFTERNOON. TORNADOES...LARGE HAIL...DANGEROUS LIGHTNING AND DAMAGING WINDS ARE POSSIBLE IN THESE AREAS. 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. A LINE OF THUNDERSTORMS MOVING ACROSS EAST TEXAS ARE EXPECTED TO PRODUCE SEVERE WEATHER DURING THE NEXT SEVERAL HOURS.
Special weather statement, Mar 17, 7:38 AM CST, 1 hour 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PORT ARTHUR TX 720 AM CST TUE MAR 17 1987 ...TORNADO WATCH FOR EAST AND SOUTHEAST TEXAS AND ADJOINING WATERS OF JEFFERSON COUNTY... A TORNADO WATCH HAS BEEN ISSUED FROM 715 AM CST THIS TUESDAY MORNING TO 100 PM THIS AFTERNOON. THIS WATCH INCLUDES THE FOLLOWING COUNTIES...ANGELINA, SABINE, NACOGDOCHES, SAN AUGUSTINE, TYLER, HARDIN, NEWTON, JASPER, ORANGE, JEFFERSON AND ADJOINING COASTAL WATERS OF JEFFERSON. 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 THREATENI NG WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. A LINE OF THUNDERSTORMS MOVING ACROSS EAST TEXAS ARE EXPECTED TO PRODUCE SEVERE WEATHER DURING THE NEXT SEVERAL HOURS.
Special weather statement, Mar 17, 7:56 AM CST, 46 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 755 AM CST TUE MAR 17 1987 ...A TORNADO WARNING IS IN EFFECT UNTIL 100 PM THIS AFTERNOON FOR SOUTHWEST AND CENTRAL LOUISIANA... ...THE TORNADO WATCH INCLUDES THE FOLLOWING PARISHES IN SOUTHWEST AND CENTRAL LOUISIANA...ACADIA..ALLEN..BEAUREGARD..CALCASIEU..CAMERON.. EVANGELINE..JEFF DAVIS..VERMILION..VERNON..LAFAYETTE..GRANT..RAPIDES.. AND ADJOINING COASTAL WATERS OF CAMERON AND VERMILION PARISHES... AT 725 AM...LAKE CHARLES RADAR SHOWED A LINE OF STRONG THUNDERSTORMS IN SOUTHEAST TEXAS FROM LIBERTY TO WEST OF JASPER. THE LINE WAS MOVING EAST AT 35 MPH. THIS LINE OF THUNDERSTORMS WAS PART OF A LARGE AREA OF RAIN AND SCATTERED THUNDERSTORMS WHICH COVERED MOST OF SOUTHEAST TEXAS AND WEST LOUISIANA...NORTHWEST OF A LINE FROM SABINE PASS TEXAS TO NATCHEZ MISSISSIPPI. < CLUSTERS OF THUNDERSTORMS WERE ALSO SHOWN NEAR RAYBURN LAKE TEXAS AND ALONG THE SABINE RIVER ON THE TEXAS LOUISIANA BORDER.
Special weather statement, Mar 17, 7:59 AM CST, 43 minutes before
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</html>The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 6:40 AM CST | Severe Thunderstorm Warning | LCH | Hardin, Tyler | 80 min |
| Mar 17, 6:40 AM CST | Severe Thunderstorm Warning | LCH | Angelina | 80 min |
| Mar 17, 7:50 AM CST | Severe Thunderstorm Warning | LCH | Jasper, Newton, Sabine, San Augustine | 70 min |
| Mar 17, 10:22 AM CST | Tornado Warning | LCH | Cameron | 38 min |
| Mar 17, 1:14 PM CST | Severe Thunderstorm Warning | LCH | Acadia, Evangeline, Vermilion | 76 min |
| Mar 17, 2:25 PM CST | Severe Thunderstorm Warning | LCH | Lafayette, Vermilion | 65 min |
| Mar 17, 2:49 PM CST | Severe Thunderstorm Warning | LCH | Acadia | 41 min |
| Mar 17, 3:30 PM CST | Severe Thunderstorm Warning | LCH | Lafayette, Vermilion | 45 min |
| Mar 17, 4:07 PM CST | Severe Thunderstorm Warning | LCH | Lafayette, Vermilion | 53 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 1987Every severe thunderstorm warning in 1987
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.