Alert archive / Texas / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 41, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at May 12, 1990, 9:24 PM CDT for Jasper County, Tyler County, Texas. It was in force for 66 min.
The area
The counties it named.
The facts
- Issued
- May 12, 1990, 9:24 PM CDT (02:24 UTC)
- Expired
- May 12, 1990, 10:30 PM CDT
- In force
- 66 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
Counties Jasper County, TX, Tyler County, TX
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 00:00Z, 2.4 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
- 2652 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 558 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 203 m²/s²
- 0-3 km storm-relative helicity
- 201 m²/s²
- Significant tornado parameter
- 2.2
- Supercell composite
- 12.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBPT 130224 SVRBPT TXC241-457-130330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PORT ARTHUR TX 924 PM CDT SAT MAY 12 1990 THE NATIONAL WEATHER SERVICE IN PORT ARTHUR HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM CDT FOR PERSONS IN THE FOLLOWING COUNTIES IN SOUTHEAST TEXAS ...NORTHERN JASPER COUNTY...EASTERN TYLER COUNTY AT 920 PM CDT...WEATHER RADAR SHOWED A SEVERE THUNDERSTORM JUST SOUTH OF ZAVALA MOVING SOUTHEAST AT 35 MILES AN HOUR. THIS STORM WILL MOVE DOWN THE NECHES RIVER AND PRODUCE DAMAGING WIND AND HAIL. BOATERS AND CAMPERS ON STEINHAGAN LAKE SHOULD MAKE FOR SAFE HARBOR IMMEDIATELY. DCG A TORNADO WATCH I)S ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. NNNN
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, May 12, 5:44 PM CDT, 3 hours 40 minutes before
LAZ005-006-007-008-011-012-122340- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 540 PM CDT SAT MAY 12 1990 ...A TORNADO WATCH IS IN EFFECT UNTIL 900 PM FOR CENTRAL LOUISIANA... AND VERNON PARISH IN WEST LOUISIANA... ...A FLASH FLOOD WATCH IS IN EFFECT FOR VERNON PARISH TONIGHT... AT 530 PM...A CLUSTER OF SCATTERED STRONG THUNDERSTORMS WAS SHOWN IN EXTREME SOUTHWEST MISSISSIPPI FROM NATCHEZ TO 25 MILES SOUTHEAST AND SOUTH OF ALEXANDRIA TO BATON ROUGE. THESE STRONG THUNDERSTORMS WERE MOVING NORTHEAST AT 45 MPH. A CLUSTER OF SCATTERED THUNDERSTORMS WAS ALSO LOCATED NORTHEAST THROUGH SOUTHWEST OF WINNFIELD LOUISIANA TO NORTH VERNON PARISH AND THE TOLEDO BEND RESERVOIR. SCATTERED MOSTLY RAINSHOWERS WER LOCATED FROM LAFAYETTE ACROSS LAKE CHARLES AND CAMERON TO NORTH OF BEAUMONT.
Special weather statement, May 12, 6:47 PM CDT, 2 hours 37 minutes before
LAZ005-006-007-008-011-012-130040- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 645 PM CDT SAT MAY 12 1990 ...A TORNADO WATCH IS IN EFFECT UNTIL 900 PM FOR CENTRAL LOUISIANA... AND VERNON PARISH IN WEST LOUISIANA... ...A FLASH FLOOD WATCH IS IN EFFECT FOR VERNON PARISH TONIGHT... AT 635 PM...APPARENT STRONG THUNDERSTORMS WERE LOCATED IN EXTREME SOUTHWEST MISSISSIPPI NEAR AND JUST NORTHEAST THROUGH SOUTH OF NATCHEZ MOVING EAST AT 40 MPH. CLUSTERS OF SCATTERED SHOWERS AND A FEW THUNDERSTORMS WERE SHOWN NORTH EAST OF LAFAYETTE AND WEST...NORTHWEST...AND NORTHEAST OF BATON ROUGE... NEAR AND WEST...NORTH...AND EAST OF LAKE CHARLES...AND JUST NORTH OF ALEXANDRIA. MOVEMENT WAS EAST AT 40 MPH.
Special weather statement, May 12, 7:43 PM CDT, 1 hour 41 minutes before
LAZ005-006-007-008-011-012-130140- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 742 PM CDT SAT MAY 12 1990 ...A TORNADO WATCH IS IN EFFECT UNTIL 900 PM FOR CENTRAL LOUISIANA... AND VERNON PARISH IN WEST LOUISIANA... ...A FLASH FLOOD WATCH IS IN EFFECT FOR VERNON PARISH TONIGHT... AT 730 PM...A BAND OF STRONG THUNDERSTORMS WAS INCREASING IN NORTHWEST LOUISIANA AND EAST TEXAS FROM JUST NORTHWEST OF MANSFIELD...NORTH OF SAN AUGUSTINE TEXAS...TO NORTH AND NORTHWEST OF LUFKIN. MOVEMENT WAS SOUTHEAST AT 35 MPH. BANDS OF STRONG THUNDERSTORMS WERE INDICATED NORTH OF ALEXANDRIA ACROSS AND NORTHEAST OF LASALLE PARISH...JUST NORTH AND NORTHEAST OF BATON ROUGE WHILE SCATTERED SHOWERS WERE SHOWN FROM JUST SOUTH OF BATON ROUGE TO SOUTHEAST OF LAFAYETTE TO EAST OF OAKDALE. MOVEMENT WAS NORTHEAST AT 45 MPH.
Special weather statement, May 12, 8:45 PM CDT, 39 minutes before
LAZ005-006-007-008-011-012-130240- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 842 PM CDT SAT MAY 12 1990 ...A TORNADO WATCH IS IN EFFECT UNTIL 900 PM FOR CENTRAL LOUISIANA... AND VERNON PARISH IN WEST LOUISIANA... ...A FLASH FLOOD WATCH IS IN EFFECT FOR VERNON PARISH TONIGHT... AT 835 PM...A BAND OF STRONG THUNDERSTORMS WAS SHOWN FROM NEAR AND SOUTH OF MANSFIELD LOUISIANA ACROSS SAN AUGUSTINE TEXAS TO NEAR LUFKIN THEN SOUTHWEST ACROSS THE NORTH PART OF LAKE LIVINGSTON TO NEAR AND SOUTHWEST OF HUNTSVILLE. THESE STRONG THUNDERSTORMS WERE MOVING SOUTHEAST AND SOUTH AT 25 MPH. SCATTERED THUNDERSTORMS AND SHOWERS REDEVELOPED NEAR AND SOUTHWEST TxHROUGH SOUTHEAST OF ALEXANDRIA TO NATCHEZ MISSISSIPPI. MOVEMENT WAS NORTHEAST AT 45 MPH.
The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 7:14 PM CDT | Tornado Warning | LCH | Nacogdoches | 61 min |
| May 12, 8:21 PM CDT | Severe Thunderstorm Warning | LCH | San Augustine | 69 min |
Nearby
Severe Thunderstorm Warnings in Texas, 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.