Alert archive / Texas / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 40, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at May 12, 1990, 8:21 PM CDT for San Augustine County, Texas. It was in force for 69 min. 2 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
- May 12, 1990, 8:21 PM CDT (01:21 UTC)
- Expired
- May 12, 1990, 9:30 PM CDT
- In force
- 69 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
County San Augustine County, TX
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 |
|---|---|---|---|
| May 12, 8:50 PM CDT | Thunderstorm Wind 0 | San Augustine, TX | |
| May 12, 9:00 PM CDT | Thunderstorm Wind 0 | San Augustine, TX |
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
Longview/Gregg, TX (KGGG), launched 00:00Z, 1.4 hours before the alert went out and 114 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
- 2029 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- -173 m²/s²
- 0-3 km storm-relative helicity
- -69 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 KBPT 130121 SVRBPT TXC405-130230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PORT ARTHUR TX 821 PM CDT SAT MAY 12 1990 THE NATIONAL WEATHER SERVICE IN PORT ARTHUR HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 930 PM CDT FOR PERSONS IN THE FOLLOWING COUNTIES IN NORTHEAST TEXAS ...SAN AUGUSTINE COUNTY AT 815 PM CDT...WEATHER RADAR SHOWED A SEVERE THUNDERSTORM OVER CHIRENO MOVING SOUTHEAST AT 35 MILES AN HOUR. LARGE HAIL AND DAMAGING WINDS CAN BE EXPECTED FROM THIS STORM AS IT MOVES INTO THE CENTRAL PART OF SAN AUGUSTINE COUNTY. GOLFBALL SIZED HAIL WAS REPORTED IN NACOGDOCHES FROM THIS STORM EARLIER THIS EVENING. DCG A TORNADO WATCH IS 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, 2:23 PM CDT, 5 hours 58 minutes before
TXZ033-046-122030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PORT ARTHUR TX 223 PM CDT SAT MAY 12 1990 THE TORNADO WATCH ISSUED EARLIER FOR MUCH OF EAST AND NORTHEAST TEXAS HAS BEEN EXTENDED UNTIL 9PM CDT TONIGHT. NO SEVERE WEATHER HAS BEEN REPORTED IN DEEP EAST TEXAS SINCE THE SEVERE THUNDERSTORM MOVED INTO LOUISIANA AROUND 9AM CDT. AT 220PM CDT RADAR SHOWS A FEW RAIN SHOWERS BETWEEN HOUSTON AND BEAUMONT EXTENDING NORTHWARD INTO THE EAST TEXAS LAKES AREA. SHOWERS WERE MOVING NORTHEAST AT 35 MPH. A FEW STRONGER STORMS WERE DEVELOPING ON THE LOUISIANA SIDE OF LAKE TOLEDO BEND. DJ NNNN
Special weather statement, May 12, 2:32 PM CDT, 5 hours 49 minutes before
LAZ005-006-007-008-011-012-122040- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 235 PM CDT SAT MAY 12 1990 ...A TORNADO WATCH IS IN EFFECT UNTIL 900 PM CDT THAT INCLUDES VERNON PARISH IN SOUTHWEST LOUISIANA AND GRANT...LA SALLE ...AND RAPIDES PARISHES IN CENTRAL LOUISIANA... ...A FLASH FLOOD WATCH IS IN EFFECT FOR VERNON PARISH FOR THIS AFTERNOON AND TONIGHT... AT 225 PM VERY STRONG THUNDERSTORMS WERE ACROSS CENTRAL LOUISIANA FROM MANY TO WINNFIELD. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG DAMAGING WINDS...LARGE HAIL...DANGEROUS LIGHTNING AND VERY HEAVY RAINFALL. THESE STORMS WERE PART OF A LARGE AREA OF RAIN AND THUNDERSTORMOS WERE SCATTERED ACROSS NORTHERN..CENTRAL AND..AND SOUTHWEST LOUISIANA. MOVEMENT WAS EAST AT 50 MILES AN HOUR.
Special weather statement, May 12, 5:44 PM CDT, 2 hours 37 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, 1 hour 34 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, 38 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.
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, 9:24 PM CDT | Severe Thunderstorm Warning | LCH | Jasper, Tyler | 66 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.