Alert archive / Louisiana / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 27, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 27, 1990, 9:15 PM CDT for Grant Parish, LaSalle Parish, Rapides Parish, Louisiana. It was in force for 2 hr. 3 reports 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
- Apr 27, 1990, 9:15 PM CDT (02:15 UTC)
- Expired
- Apr 27, 1990, 11:15 PM CDT
- In force
- 2 hr
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
Counties Grant Parish, LA, LaSalle Parish, LA, Rapides 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 |
|---|---|---|---|
| Apr 27, 9:30 PM CDT | Thunderstorm Wind 0 | Grant, LA | |
| Apr 27, 9:45 PM CDT | Thunderstorm Wind 0 | Grant, LA | |
| Apr 27, 9:50 PM CDT | Thunderstorm Wind 0 | La Salle, 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 00:00Z, 2.3 hours before the alert went out and 170 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
- 934 J/kg
- Mixed-layer CIN
- -110 J/kg
- Mixed-layer LCL
- 1032 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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, Apr 27, 7:44 PM CDT, 1 hour 31 minutes before
LAZ005-006-007-008-011-012-280145- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 742 PM CDT FRI APR 27 1990 ...A TORNADO WATCH IS IN EFFECT THIS FRIDAY NIGHT AND SATURDAY MORNING FOR CENTRAL AND SOUTHWEST LOUISIANA UNTIL 200 AM... AT 725 PM...ISOLATED STRONG THUNDERSTORMS WERE SHOWN IN TEXAS FROM KOUNTZE TO JUST NORTHWEST OF SAN AUGUSTINE. THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 25 MILES AN HOUR. STRONG GUSTY WINDS....DANGEROUS CLOUD TO GROUND LIGHTNING...PERIODS OF VERY HEAVY RAIN...AND SOME HAIL CAN BE EXPECTED WITH THESE THUNDERSTORMS. A LARGE AREA OF RAIN MIXED WITH ISOLATED THUNDERSTORMS WAS DETECTED IN TEXAS FROM THE CONROE AND LAKE LIVINGSTON AREAS....TO NEAR THE NORTHERN END OF TOLEDO BEND RESERVIOR.
Special weather statement, Apr 27, 8:47 PM CDT, 28 minutes before
LAZ005-006-007-008-011-012-280245- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 840 PM CDT FRI APR 27 1990 ...A TORNADO WATCH IS IN EFFECT THIS FRIDAY NIGHT AND SATURDAY MORNING FOR CENTRAL AND SOUTHWEST LOUISIANA UNTIL 200 AM... AT 825 PM...VERY STRONG THUNDERSTORMS WERE MOVING INTO WEST CENTRAL AND SOUTHWEST LOUISIANA FROM SOUTHEAST TEXAS. IN LOUISIANA ONE WAS LOCATED BETWEEN CONVERSE AND MANY...AND OVER SOUTHEAST TEXAS LOCATIONS WERE JUST EAST OF SAN AUGUSTINE OVER TOLEDO BEND RESERVOIR...AND OVER KIRBYSVILLE. THESE THUNDERSTORMS LIKELY CONTAIN LARGE HAIL...GUSTY WINDS...VERY HEAVY RAINFALL AND DANGEROUS LIGHTNING. OTHER STRONG THUNDERSTORMS WgERE ACROSS SOUTHEAST TEXAS AND WESTERN LOUISIANA FROM SHREVEPORT TO BEAUMONT. AND NEAR LAKE LIVINGSTON IN SOUTHEAST TEXAS. MOVEMENT WAS NORTHEAST AT 25 MILES AN HOUR.
The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 8:42 PM CDT | Severe Thunderstorm Warning | LCH | Beauregard, Vernon | 63 min |
| Apr 27, 8:50 PM CDT | Tornado Warning | LCH | Beauregard | 40 min |
| Apr 27, 9:15 PM CDT | Severe Thunderstorm Warning | LCH | Ouachita | 2 hr |
| Apr 27, 9:26 PM CDT | Tornado Warning | LCH | Allen, Beauregard | 49 min |
| Apr 27, 9:51 PM CDT | Tornado Warning | LCH | Evangeline | 54 min |
| Apr 27, 11:49 PM CDT | Severe Thunderstorm Warning | LCH | Calcasieu, Cameron | 56 min |
| Apr 28, 12:42 AM CDT | Severe Thunderstorm Warning | LCH | Cameron | 48 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.