Alert archive / Texas / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 85, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Oct 11, 1986, 1:15 AM CDT for Val Verde County, Texas. It was in force for 60 min. 1 report 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
- Oct 11, 1986, 1:15 AM CDT (06:15 UTC)
- Expired
- Oct 11, 1986, 2:15 AM CDT
- In force
- 60 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Val Verde 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 |
|---|---|---|---|
| Oct 11, 2:00 AM CDT | Thunderstorm Wind 53 | Val Verde, 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
Del Rio, TX (KDRT), launched 00:00Z, 6.3 hours before the alert went out and 66 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
- 384 J/kg
- Mixed-layer CIN
- -148 J/kg
- Mixed-layer LCL
- 776 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 215 m²/s²
- 0-3 km storm-relative helicity
- 287 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KDRT 110612 SVRDRT TXC465-110715- BULETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DEL RIO TX 115 AM CDT SAT OCT 11 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 215 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY IN SOUTHCENTRAL TEXAS...VAL VERDE AT 110 AM CDT RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTHWEST OF DEL RIO AND WAS MOVING TO THE NORTHEAST AT 25 MPH THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH..LARGE HAIL AND DEADLY LIGHTNING. BOATERS ON LAKE AMISTAD SHOULD MOVE OFF THE LAKE TO NEARBY SHELTER. PEOPLE OUTSIDE SHOULD MOVE INSIDE STRONG BUILDINGS BUT STAY AWAY FROM WINDOWS.
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, Oct 10, 10:13 PM CDT, 3 hours 2 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 1015 PM CDT FRI OCT 10 1986 AT 100O PM CDT A LINE OF THUNDERSTORMS WAS MOVING THOUGH VAL VERDE COUNTY. ONLY WEAK THUNDERSTORMS WERE LOCATED WITHIN THE COUNTY. A STRONG THUNDERSTORM WAS LOCATED 50 MILES WEST OF DEL RIO...IN MEXICO. THIS THUNDERSTORM WAS MOVING TO THE EAST AT ABOUT 25 MILES AN HOUR. IF THIS THUNDERSTORM MAINTAINS ITS CURRENT INTENSITY...VERY STRONG GUSTY WINDS CAN BE EXPECTED AS THE STORM MOVES THOUGH THE AREA. BOATERS ON LAKE AMISTAD SHOULD SEEK SAFE HARBOR BEFOR THE STORM ARRIVES. THESE THUNDERSTORMS COULD ALSO PRODUCE BRIEF HEAVY RAINFALL..STRONG LIGHTNING STRIKES. EVERYONE SHOULD MONITOR THE WEATHER...YO)UR NATIONAL WEATHER SERVICE WILL ISSUE ADDITIONAL STATEMENTS AS CONDITIONS WARRANT.
Special weather statement, Oct 11, 12:38 AM CDT, 37 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 1240 AM CDT SAT OCT 11 1986 AT 1230 AM CDT MODERATE THUNDERSTORMS WERE MOVING THOUGH DEL RIO. A VERY STRONG THUNDERSTORM WAS LOCATED 15 MILES SOUTHWEST OF DEL RIO...IN MEXICO. THIS THUNDERSTORM WAS MOVING TO THE EAST AT ABOUT 25 MILES AN HOUR. VERY STRONG GUSTY WINDS CAN BE EXPECTED AS THE STORMS MOVES THOUGH THE AREA. BOATERS ON LAKE AMISTAD SHOULD SEEK SAFE HARBOR. THESE THUNDERSTORMS COULD PRODUCE BRIEF HEAVY RAINFALL AND STRONG LIGHTNING STRIKES. EVERYONE SHOULD MONITOR THE WEATHER CLOSELY AND BE PREPARED TO TAKE SHELTER IF NECESSARY. YOUR NATIONAL WEATHER SERVICE WILL ISSUE ADDITIONAL STATEMENTS AS CONDITIONS WARRANT.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 11, 12:49 AM CDT | Severe Thunderstorm Warning | EWX | Zavala | 61 min |
| Oct 11, 5:45 AM CDT | Severe Thunderstorm Warning | EWX | Atascosa | 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.