Alert archive / Texas / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 9, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Mar 11, 1986, 10:55 PM CST for San Augustine County, Texas. It was in force for 95 min.
The area
The counties it named.
The facts
- Issued
- Mar 11, 1986, 10:55 PM CST (04:55 UTC)
- Expired
- Mar 12, 1986, 12:30 AM CST
- In force
- 95 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.
The nearest sounding before it
Longview/Gregg, TX (KGGG), launched 00:00Z, 4.9 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
- 2309 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 524 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 323 m²/s²
- 0-3 km storm-relative helicity
- 327 m²/s²
- Significant tornado parameter
- 5.0
- Supercell composite
- 17.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBPT 120555 SVRBPT TXC005-457-405-120700 BULLETIN-IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PORT ARTHUR TX 1055 PM CST TUE MAR 11 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING FOR THE COUNTIES OF TYLER ANGELINA SAN AUGUSTINE EFFECTIVE UNTIL 130 AM CST WEDNESDAY MORNING. THE WEATHER RADAR INDICATED A LARGE BAND OF VERY HEAVY THUNDERSTORMS ALONG A LINE FROM NORTH OF HEMPHILL IN SABINE COUNTY SOUTHWEST TOWARD THE TOWN OF CHESTER IN NORTHWEST TYLER COUNTY MOVING SOUTHEAST AT 30 MPH. FREQUENT LIGHTNING..HEAVY DOWN POUR..LARGE HAIL AND DAMAGING THUNDERSTORMS WINDS ARE ASSOCIATED WITH THESE THUNDERSTORMS.
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, Mar 11, 10:48 PM CST, 7 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE LAKE CHARLES LA 1045 PM CST TUE MAR 11 1986 ...A TORNADO WATCH IS IN EFFECT UNTIL 4AM WEDNESDAY MORNING FOR... BEAUREGARD...CALCASIEU...CAMERON...VERNON...ALLEN...AND JEFFERSON DAVIS PARISHES IN SOUTHWEST LOUISIANA...AND FOR RAPIDES LA SALLE AND GRANT PARISHES IN CENTRAL LOUISIANA... AT 1025 PM...SCATTERED THUNDERSTORMS WERE OCCURRING OVER THE NORTHERN TIP OF TOLEDO BEND RESERVOIR NORTHEAST TO NEAR MANSFIELD. THESE THUNDERSTORMS WERE ONLY PART OF A LINE WHICH EXTENDED ACROSS NORTHWEST LOUISIANA INTO SOUTHERN ARKANSAS. THE LINE APPEARED TO BE MOVING EAST AT 30 MPH.
The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 11, 10:55 PM CST | Severe Thunderstorm Warning | LCH | Angelina, Tyler | 95 min |
| Mar 12, 2:00 AM CST | Severe Thunderstorm Warning | LCH | Hardin, Jefferson, Orange | 45 min |
| Mar 12, 2:00 AM CST | Severe Thunderstorm Warning | LCH | Jasper | 45 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1986Every severe thunderstorm warning in 1986
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.