Alert archive / Louisiana / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 3, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Feb 15, 1990, 11:18 AM CST for Saint Landry Parish, Louisiana. It was in force for 57 min.
The area
The counties it named.
The facts
- Issued
- Feb 15, 1990, 11:18 AM CST (17:18 UTC)
- Expired
- Feb 15, 1990, 12:15 PM CST
- In force
- 57 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
County Saint Landry 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, 5.3 hours before the alert went out and 126 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
- 1324 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 612 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 132 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 4.9
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, 9:35 AM CST, 1 hour 43 minutes before
LAZ006-009-151630- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BATON ROUGE LA 930 PM CST THU FEB 15 1990 ...THUNDERSTORMS WITH HEAVY RAIN AND HAIL MOVING INTO AND DEVELOPING ACROSS AVOYELLES...CATAHOULA AND CONCORDIA PARISH... RADAR SHOWED THUNDERSTORMS WEST OF MARKSVILLE TO FERRIDAY. HAIL WAS REPORTED IN THE THUNDERSTORMS WEST OF MARKSVILLE. THE THUNDERSTORMS WILL CONTINUE THROUGH THE MORNING HOURS ACROSS THE MENTIONED PARISHES. PERSONS SHOULD REMAIN ALERT AND LISTEN TO NOAA RADIO FOR LATER STATEMENTS OR WARNINGS.
Special weather statement, Feb 15, 11:09 AM CST, 9 minutes before
LAZ008-009-151800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BATON ROUGE LA 1105 PM CST THU FEB 15 1990 ...THUNDERSTORMS WITH HEAVY RAIN AND HAIL DEVELOPING OVER EAST CENTRAL LOUISIANA... RADAR SHOWED THUNDERSTORMS IN ST LANDRY PARISH NEAR PORT BARRE EXTENDING NORTHWEST ACROSS CLINTON INTO SOUTHWEST MISSISSIPPI. THUNDERSTORMS WERE MOVING NORTHWEST AT 40 MPH. THE THUNDERSTORMS WILL CONTINUE TO DEVELOPE THROUGHOUT THE AFTERNOON AND MAY PRODUCE VERY HEAVY RAIN...STRONG WINDS AND HAIL. PERSONS SHOULD REMAIN ALERT AND LISTEN TO NOAA RADIO FOR LATER STATEMENTS OR WARNINGS.
Special weather statement, Feb 15, 11:11 AM CST, 7 minutes before
LAZ008-009-151800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BATON ROUGE LA 1105 PM CST THU FEB 15 1990 ...THUNDERSTORMS WITH HEAVY RAIN AND HAIL DEVELOPING OVER EAST CENTRAL LOUISIANA... RADAR SHOWED THUNDERSTORMS IN ST LANDRY PARISH NEAR PORT BARRE EXTENDING NORTHWEST ACROSS CLINTON INTO SOUTHWEST MISSISSIPPI. THUNDERSTORMS WERE MOVING NORTHEAST AT 40 MPH. THE THUNDERSTORMS WILL CONTINUE TO DEVELOPE THROUGHOUT THE AFTERNOON AND MAY PRODUCE VERY HEAVY RAIN...STRONG WINDS AND HAIL. PERSONS SHOULD REMAIN ALERT AND LISTEN TO NOAA RADIO FOR LATER STATEMENTS OR WARNINGS.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 15, 11:49 AM CST | Tornado Warning | LIX | Saint Landry | 16 min |
| Feb 15, 11:49 AM CST | Tornado Warning | LIX | Pointe Coupee | 51 min |
| Feb 15, 12:15 PM CST | Tornado Warning | LIX | West Feliciana | 45 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 1990Every severe thunderstorm warning in 1990
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.