Alert archive / Texas / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 39, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Apr 4, 1986, 5:10 PM CST for Gregg County, Harrison County, Texas. It was in force for 60 min. 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 4, 1986, 5:10 PM CST (23:10 UTC)
- Expired
- Apr 4, 1986, 6:10 PM CST
- In force
- 60 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
Counties Gregg County, TX, Harrison 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, 5:20 PM CST | Hail 1.75 | Gregg, TX | |
| Apr 4, 5:40 PM CST | Hail 1.75 | Gregg, TX | |
| Apr 4, 6:20 PM CST | Hail 1.75 | Harrison, 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 12:00Z, 11.2 hours before the alert went out and 18 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
- 724 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 594 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 327 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 6.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSHV 042313 SVRSHV TXC183-203- 315-050010- BULLETIN...IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 510 PM CST FRI APR 4 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 610PM CST FOR PEOPLE IN THE FOLLOWING COUNTIES IN NORTHEAST TEXAS...GREGG AND WESTERN HALF OF HARRISON AND MARION AT 510PM CST THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT WAS SHOW ING A VERY STRONG THUNDERSTORM DEVELOPING NEAR LONGVIEW...MOVING EAST NORTHEAST AT 35 MPH. LARGE HAIL AND HIGH WINDS LIKELY...TORNADO WATCH IN EFFECT. TORNADO WARNING REMAINS IN EFFECT FOR NORTHWEST BOWIE COUNTY IN NORTH EAST TEXAS AND LITTLE RIVER COUNTY IN SOUTHWEST ARKANSAS. TORNADO INDICATED NORTH OF DEKALB TEXAS...MOVING EAST NORTHEAST AT 40MPH. . TORNADO TOUCH DOWN REPORTED NORTHWEST OF DEKALB ALONG WITH GOLF BALL SIZE HAIL...TORNADO ALSO REPORTED TOUCHED DOWN SOUTHWEST OF GLEEN WOOD ARKANSAS...NOW APPROACHING HOT SPRINGS ARKANSAS AREA.
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 4, 2:31 PM CST, 2 hours 39 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, 57 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 3, 7:45 PM CST | Severe Thunderstorm Warning | SHV | Harrison, Marion | 65 min |
| Apr 3, 7:45 PM CST | Severe Thunderstorm Warning | SHV | Gregg | 65 min |
| Apr 4, 12:25 AM CST | Flash Flood Warning | SHV | Bowie | 3 hr |
| Apr 4, 4:45 PM CST | Severe Thunderstorm Warning | SHV | Bowie | 65 min |
| Apr 4, 4:54 PM CST | Tornado Warning | SHV | Bowie | 61 min |
| Apr 4, 5:10 PM CST | Severe Thunderstorm Warning | SHV | Marion | 60 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.