Alert archive / Texas / Tornado Warnings in 1986
Tornado Warning 9, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Apr 4, 1986, 6:25 PM CST for Cass County, Marion County, Texas. It was in force for 65 min. 5 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 4, 1986, 6:25 PM CST (00:25 UTC)
- Expired
- Apr 4, 1986, 7:30 PM CST
- In force
- 65 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
Counties Cass County, TX, Marion 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 |
|---|---|---|---|
| Apr 4, 6:39 PM CST | Hail 1 | Marion, TX | |
| Apr 4, 7:15 PM CST | Thunderstorm Wind 0 | Marion, TX | |
| Apr 4, 7:20 PM CST | Hail 1.75 | Cass, TX | |
| Apr 4, 7:20 PM CST | Hail 1.75 | Cass, TX | |
| Apr 4, 7:20 PM CST | Thunderstorm Wind 0 | Cass, 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, 0.4 hours before the alert went out and 69 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
- 2157 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 1179 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 5.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSHV 050030 TORSHV TXC315-067-ARC057-050130- BULLETIN...EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 625 PM CST FRI APR 4 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 730 PM CST FOR PEOPLE IN THE FOLLOWING COUNTIES IN NORTHEAST TEXAS...MARION AND SOUTHEAST CASS. SOUTHWEST ARKANSAS...NORTHWEST HALF OF HEMPSTEAD. AT 625 PM CST THE NATIONAL WEATHER WEATHER SERVICE RADAR IN SHREVEPORT WAS INDICTING A POSSIBLE TORNADO IN SEVERE THUNDERSTORM NORTHWEST OF MARSHALL AND SOUTHWEST OF JEFERSON TEXAS..MOVING EAST NORTHEAST AT 35 MPH. OTHER SEVERE STORMS WERE LOCATED 10 MILES WEST OF LINDEN TEXAS AND 10 MILES WEST OF DEKALB TEXAS...MOVING EAST NORTHEAST AT 35 MPH.. LARGE HAIL INDICATED. . ALSO TORNADO INDICATED BY RADAR 10 MILES SOUTHWEST OF NASHVILLE ARKANAS MOVING EAST NORTHEAST AT 30 MPH. PERSONS IN THE PATH OF THIS TORNADO SHOULD SEEK SHELTER IN A PERMANENT STRUCTURE ON THE LOWEST FLOOR IN AN INTERIOR SMALL ROOM. GET UNDER A PIECE OF HEAVY FURNITURE OR COVER YOURSELF WITH SOMETHING TO PROTECT AGAINST FLYING OR FALLING DEBRIS. ALSO...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEAST SEVIER AND AND HOWARD COUNTIES IN SOUTHWEST ARKANSAS...RADAR INDICTES A POSSIBLE TORNADO 10 MILES SOUTHWEST OF NASHVILLE ARKANSAS...MOVING EAST NORTHEAST AT 30 MPH.
What forecasters said that day
The local office's own words before this tornado 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 4, 2:31 PM CST, 3 hours 54 minutes before
NEWSPSSHV SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 230 PM CST FRI APR 4 1986 A TORNADO WATCH HAS BEEN ISSUED AND IN EFECT FOR A LARGE AREA INCLUD- ING SOUTHEAST OKLAHOMA..WEST CENTRAL AND SOUTHWEST ARKANSAS AND MUCH OF NORTHCENTRAL AND NORTHEAST TEXAS. AT 230 PM CST THE NATIONAL WEATHER SERVICE RADAR IN SHRVEPORT CONTINUED TO SHOW A BAND OF STONG THUNDERSTORMS OVER EAST OKLAHOMA INTO NORTH- CENTRAL TEXAS..WITH SHOWERS AND THUNDERSTORMS DEVELOPING AHEAD OF THE BAND OVER EXTREME NORTHEAST TEXAS..EXTREME SOUTHEAST OKLAHOMA AND SOUTH WEST ARKANSAS. AT 230 PM CST THE OLD BAND OF THUNDERSTORMS WERE FROM THE NORTHWEST CORNER OF ARKANSAS IN THE FAYETTEVILLE/FORT SMITH AREA..THROUGH EAST CENTRAL OKLAHOMA NEAR MCALESTER...ON SOUTHWEST TO THE DALLAS FORT WORTH AREA. A NEW BAND OF SHOWERS AND THUNDERSTORMS WERE DEVELOPING FROM NEAR MENA IN SOUTHWEST ARKANSAS...ACROSS DEQUEEN TO NEAR CLARKSVILLE AND GREENVILLE TEXAS. STRONG THUNDERSTORMS IN THE NEW BAND WERE FROM NEAR CLARKSVILLE TO NEAR IDABEL OKLAHOMA. INDIVIDUAL THUNDERSTORMS WILL MOVE NORTHEAST AT 30 TO 40 MPH WHILE THE SYSTEMS DEVELOP EAST. INDICTIONS ARE THE SEVERE STORMS WILL DEVELOP ACROSS THE NORTHWEST HALF OF THE ARKLATED INTO SOUTHEAST OKLAHOMA...ALSO ADDITIONAL HEAVY RAINFALL MAY PRODUCE FLOODING IN THE AREAS THAT RECEIVED FROM TWO TO OVER FIVE INCHES OF RAIN LAST NIGHT.
Special weather statement, Apr 4, 4:13 PM CST, 2 hours 12 minutes before
NEWSPSSHV SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 410 PM CST FRI APR 4 1986 A TORNADO WATCH REMAINS IN EFFECT FOR A LARGE AREA INCLUDING SOUTH EAST OKLAHOMA..WEST CENTRAL AND SOUTHWEST ARKANSAS AND MUCH OF NORTH CENTRAL AND NORTHEAST TEXAS. OVER THE PAST HOUR SMALL HAIL REPORTED IN STRONG THUNDERSTORM NORTH OF NASHVILLE ARKANSAS...BRIEF HEAVY RAINFALL AND GUSTY WINDS WITH THUNDER STORMS OVER SOUTHWEST ARKANAS AND EXTREME NORTHEAST TEXAS AND EXTREME SOUTHEAST OKLAHOMA. ISOLATED STRONG THUNDERSTORMS WERE OCCURRING OVER SOUTHWEST ARKANSAS AND EXTEME NORTHEAST TEXAS FROM SOUTHWEST OF HOT SPRINGS TO NORTH OF NASSVILLE TO NEAR DEKALB TEXAS. MOVMENT WAS NORTHEAST AT 30 MPH. THESE STORMS WERE AHEAD OF A BAND OF VERY STRONG THUNDERSTORMS THAT WERE SPREADING EAST ACROSS NORTH TEXAS AND SOUTHEAST OKLAHONA. THE BAND WAS LOCATED AT 410 PM FROM 40 MILEA NORTH OF IDABEL OKLAHOMA TO SOUTHWEST OF HUGO TO NEAR DALLAS TEXAS. AREAL COVERAGE OF STRONG THUNDERSTORMS WILL CONTINUE TO INCREASE OVER THE NORTHWEST HALF OF THE ARKLATEX THIS EVENING INTO THE SOUTHEAST PART OF OKLAHOMA..A FEW SEVERE STORMS ARE LIKELY. ALSO...ADDITIONAL HEAVY RAINFALL WmILL OCCUR TONIGHT OVER THE SAME AREA WHERE TWO TO OVER FIVE INCHES FELL THURSDAY NIGHT...THUS FLOODING MAY DEVELOP LATER THIS EVENING..AS AREA STREAMS ARE NOW RUNNING HIGH.
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 6:05 PM CST | Severe Thunderstorm Warning | SHV | Harrison, Marion | 75 min |
| Apr 4, 6:05 PM CST | Severe Thunderstorm Warning | SHV | Bowie, Cass | 75 min |
| Apr 4, 7:30 PM CST | Severe Thunderstorm Warning | SHV | Bowie | 70 min |
| Apr 4, 8:10 PM CST | Severe Thunderstorm Warning | SHV | Bowie | 80 min |
| Apr 4, 9:20 PM CST | Severe Thunderstorm Warning | SHV | Bowie | 65 min |
| Apr 5, 2:25 AM CST | Flash Flood Warning | SHV | Bowie | 3 hr |
| Apr 5, 5:15 AM CST | Severe Thunderstorm Warning | SHV | Gregg | 70 min |
Nearby
Tornado Warnings in Texas, 1986Every tornado warning in 1986Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.