Alert archive / Louisiana / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 91, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Aug 30, 1990, 5:46 PM CDT for Rapides Parish, Vernon Parish, Louisiana. It was in force for 59 min.
The area
The counties it named.
The facts
- Issued
- Aug 30, 1990, 5:46 PM CDT (22:46 UTC)
- Expired
- Aug 30, 1990, 6:45 PM CDT
- In force
- 59 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
Counties Rapides Parish, LA, 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, 10.8 hours before the alert went out and 119 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
- 1788 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 969 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLCH 302248 SVRLCH LAC079-115-302345- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LAKE CHARLES LA 546 PM CDT THU AUG 30 1990 THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 645 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL LOUISIANA ...WESTERN RAPIDES PARISH IN SOUTHWEST LOUISIANA ...EASTERN VERNON PARISH AT 545 PM...THE LAKE CHARLES WEATHER RADAR SHOWED A CLUSTER OF SEVERE THUNDERSTORMS OVER MIDWAY BETWEEN LEESVILLE AND ALEXANDRIA OR IN THE LACAMP AREA IN VERNON PARISH. THE THUNDERSTORMS WERE DRIFTING SOUTHWEST. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTJER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
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, Aug 30, 3:38 PM CDT, 2 hours 8 minutes before
LAZ005-006-007-008-011-012-302145- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 335 PM CDT THU AUG 30 1990 ...SEVERE THUNDERSTORMS WATCH IN EFFECT UNTIL 9 PM THIS THURSDAY EVENING FOR ALL OF SOUTHWEST AND CENTRSL LOUISIANA. AT 330 PM...THUNDERSTORMS...SOME WITH VERY HEAVY RAINS...WERE DEVELOPING RATHER RAPIDLY OVER PORTIONS OF CENTRAL LOUISIANA..MAINLY IN LASALLE.. GRANT..AND RAPIDES PARISHES. AN INTENSE THUNDERSTORM WITH HAIL INDICATED BY RADAR WAS SHOWN JUST EAST OF ALEXANDRIA ..ABOUT 15 MILES NORTH OF MARKSVILLE MOVING TOWARD THE SOUTH AT 25 MPH. PERSONS IN CENTRAL LOUISIANA SHOULD BE ON THE ALERT IN THE EVENT OTHER WEATHER DEVELOPMENTS OCCUR WERE A WARNING IS REQUIRED. PERIODS OF VERY HEAVY RAINS...STRONG GUSTY WINDS...DANGEROUS LUGHTNING.. AND HAIL ARE LIKELY TO OCCUR WITH THE HEAVIER THUNDERSTORMS. ALSO FLOODING OF LOW LYING AREAS IS LIKELY.
The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 4:26 PM CDT | Severe Thunderstorm Warning | LCH | Rapides | 64 min |
| Aug 30, 6:49 PM CDT | Severe Thunderstorm Warning | LCH | Allen, Beauregard | 56 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.