Alert archive / Louisiana / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 1, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Feb 15, 1987, 10:30 AM CST for Assumption Parish, Saint Martin Parish, St. Mary Parish, Louisiana. It was in force for 60 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
- Feb 15, 1987, 10:30 AM CST (16:30 UTC)
- Expired
- Feb 15, 1987, 11:30 AM CST
- In force
- 60 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
Counties Assumption Parish, LA, Saint Martin Parish, LA, St. Mary Parish, LA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 15, 11:20 AM CST | Tornado F2 | Assumption, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 4.5 hours before the alert went out and 177 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 699 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, Feb 15, 8:30 AM CST, 2 hours before
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</html>Special weather statement, Feb 15, 8:43 AM CST, 1 hour 47 minutes before
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</html>Special weather statement, Feb 15, 9:47 AM CST, 43 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BATON ROUGE LA 945 AM CST SUN FEB 15 1987 ...A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON FOR MOST OF EAST CENTRAL LOUISIANA...INCLUDING THE BATON ROUGE METROPOLITAN AREA... ST. LANDRY PARISH SHERIFFS OFFICE REPORTED A POWER LINE DOWN... SOME ROOF DAMAGE AND A SMALL SHED DAMAGED IN OPELOUSAS AT 925AM. NO INJURIES. RADAR SHOWED SCATTERED STRONG THUDERSTORMS BETWEEN SIMMESPORT AND LAFAYETTE AND BETWEEN BATON ROUGE AND NEW IBERIA. THESE THUNDERSTORMS WERE MOVING RAPIDLY NORTHEAST AND WILL BE MOVING THROUGH THE REMAINDER OF ST. LANDRY AND POINTE COUPEE PARISHES DURING THE NEXT HOUR. ELSEWHERE...A LARGE SOLID AREA OF RAIN WITH A FEW STRONG THUNDERSTORMS COVERED LOUISIANA FROM ALEXANDRIA TO THE MISSISSIPPI RIVER...SOUTH ACROSS THE BATON ROUGE AND LAFAYETTE AREAS TO THE COAST. THIS AREA WAS MOVING EAST ABOUT 20 MPH. < REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TLORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PEOPLE IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATNING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Local storm report, Feb 15, 10:23 AM CST, 7 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE BATON ROUGE LA
1020 AM CST SUN FEB 15 1987
0925 AM ST. LANDRY PARISH SHERIFFS OFFICE REPORTED A POWER LINE
DOWN...SEVERAL ROOFS AND A SHED DAMAGED. uTHIS OCCURRED
ON THE WEST OUTSKIRTS OF OPELAUSAS...IN THE PRAIRE RHODE
COMMUNITY. NO INJURIES. REPORT RECEIVED AT 938AM.Local storm report, Feb 15, 10:24 AM CST, 6 minutes before
STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE BATON ROUGE LA
1020 AM CST SUN FEB 15 1987
0925 AM ST. LANDRY PARISH SHERIFFS OFFICE REPORTED A POWER LINE
DOWN...SEVERAL ROOFS AND xA SHED DAMAGED. THIS OCCURRED
ON THE WEST OUTSKIRTS OF OPELAUSAS...IN THE PRAIRIE RHODE
COMMUNITY. NO INJURIES. REPORT RECEIVED AT 938AM.Local storm report, Feb 15, 10:29 AM CST, 1 minute before
STORM REPORT
NATIONAL WEATHER SERVICE BATON ROUGE LA
1130 AM CST SUN FEB 15 1987
1100-1110 AM WEST BATON PARISH SHERIFFS OFFICE REPORTED A TREE FELL ON
A POWER LINE IN THE NORTHERN PART OF THE PARISH AT 1100AM.
AT 1110AM A TREE FELL ON POWER LINE IN THE ADDIS
COMMUNITY.
1112 AM STATE POLICE TROOP A HEADQUATERS REPORTED STRONG WIND...
MARBLE SIZE HAIL AND A STREET SIGN BLOWN OFF AT TH?EIR
OFFICE IN SOUTH BATON ROUGE.The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 15, 11:40 AM CST | Severe Thunderstorm Warning | LIX | Assumption, Lafourche, Saint James, Terrebonne | 60 min |
| Feb 15, 11:40 AM CST | Severe Thunderstorm Warning | LIX | Saint John the Baptist | 60 min |
| Feb 15, 12:30 PM CST | Severe Thunderstorm Warning | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard, Saint Tammany | 60 min |
| Feb 15, 12:30 PM CST | Severe Thunderstorm Warning | LIX | Tangipahoa, Washington | 60 min |
| Feb 15, 12:30 PM CST | Severe Thunderstorm Warning | LIX | Lafourche, Saint Charles, Saint John the Baptist | 60 min |
| Feb 15, 1:30 PM CST | Severe Thunderstorm Warning | LIX | Jefferson, Orleans, Plaquemines | 45 min |
| Feb 15, 1:30 PM CST | Severe Thunderstorm Warning | LIX | Saint Bernard | 45 min |
| Feb 15, 1:30 PM CST | Severe Thunderstorm Warning | LIX | Saint Tammany | 45 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.