Alert archive / Texas / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 21, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at May 23, 1987, 5:43 PM CDT for Irion County, Reagan County, Texas. It was in force for 62 min.
The area
The counties it named.
The facts
- Issued
- May 23, 1987, 5:43 PM CDT (22:43 UTC)
- Expired
- May 23, 1987, 6:45 PM CDT
- In force
- 62 min
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties
Counties Irion County, TX, Reagan 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
Midland Regional, TX (KMAF), launched 12:00Z, 10.7 hours before the alert went out and 113 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
- 70 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 724 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 328 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSJT 232243
SVRSJT
TXC235-383-232345-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
543 PM CDT SAT MAY 23 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 645 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTHWEST TEXAS
...IRION...EASTERN REAGAN
AT 545 PM CDT SEVERE THUNDERSTORM WAS INDICATED BY RADAR OVER BIG
LAKE MOVING TO THE EAST AT 20 MPH.
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.
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS. HEAVY RAINS OFLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.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 23, 1:44 PM CDT, 3 hours 59 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO, TX 143 PM CDT SAT MAY 23 1987 ...STRONG THUNDERSTORMS OVER WESTERN PORTIONS OF THE CONCHO VALLEY... AT 140PM CDT AN AREA OF THUNDERSTORMS SOME STRONG AND PRODUCING VERY HEAVY RAINS EXTENDED FROM EAST OF BIG SPRINGS SOUTHWARD TO NEAR BIG LAKE. THE HEAVIEST STORMS WERE NEAR BIG LAKE AND SOUTHWEST OF GARDEN CITY...MOVING TO THE NORTHEAST AT 25 MPH. SOME HAIL AND STRONG GUSTY WIND AND SOME LOCAL FLOODING MAY OCCURR WITH THE HEAVIER STORMS. STAY TUNED TO YOUR LOCAL TV...RADIO...AND NOAA WEATHER RADIO FOR THE LATEST WEATHER IMFORMATION.
Special weather statement, May 23, 4:12 PM CDT, 1 hour 31 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO, TX 407 PM CDT SAT MAY 23 1987 ...INTENSE THUNDERSTORMS DEVELOPING TO THE WEST OF THE CONCHO VALLEY... AT 405 PM CDT AN AREA OF THUNDERSTORMS SOME VERY STRONG DEVELOPED IN CONCHO COUNTY WITH THE HEAVIEST STORM 12 MILES SOUTHWEST OF EDEN. A FEW SHOWERS WERE DEVELOPING ACROSS THE WESTERN COUNTIES OF THE CONCHO VALLEY WHILE INTENSE THUNDERSTORMS WERE INDICATED TO THE WEST OF THE CONCHO VALLEY. THE ACTIVITY TO THE WEST OF THE CONCHO VALLEY WAS MOVING TO THE NORTHEAST AT 25 MPH. DUE TO THE UNSTABLE CONDITIONS RAPID DEVELOPEMENT OF THUNDERSTORMS THIS AFTERNOON AND EVENING CAN BE EXPECTED. WITH THE STRONGEST THUNDERSTORMS SOME HAIL...GUSTY WINDS...FREQUENT LIGHTNING...AND VERY HEAVY RAINS CAN BE EXPECTED. STAY TUNED TO YOUR LOCAL TV...RADIO...AND NOAA WEATHER RADIO FOR THE LATEST WEATHER IMFORMATION.
Special weather statement, May 23, 4:52 PM CDT, 51 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO, TX 440 PM CDT SAT MAY 23 1987 A TORNADO WATCH IS IN EFFECT FROM 445 PM CDT UNTIL 10 PM CDT FOR THE FOLLOWING COUNTIES OF THE CONCHO VALLEY...STERLING...COKE...RUNNELS... CONCHO...MCCULLOCH...MASON...MENARD...KIMBLE...SUTTON...SCHLEICHER... CROCKETT...REAGAN...IRION...AND TOM GREEN COUNTIES. A SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL 545 PM CDT FOR REAGAN COUNTY. AT 440 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES WEST OF TEXON MOVING TO THE NORTHEAST AT 25 MPH. INTENSE THUNDERSTORMS WERE INDICATED IN CONCHO COUNTY 7 MILES WEST OF EDEN. PEA SIZED HAIL WAS REPORTED BY DPS 7 MILES WEST OF EDEN AT 420 PM. DUE TO THE UNSTABLE CONDITIONS RAPID DEVELOPEMENT OF THUNDERSTORMS THIS AFTERNOON AND EVENING CAN BE EXPECTED. WITH THE STRONGEST THUNDERSTORMS SOME HAIL...GUSTY WINDS ...FREQUNET LIGHTNING...AND VERY HEAVY RAINS CAN BE EXPECTED.
Special weather statement, May 23, 5:04 PM CDT, 39 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABILENE TX 505 PM CDT SAT MAY 23 1987 A TORNADO WATCH IS IN EFFECT FOR FISHER MITCHELL NOLAN SCURRY AND COLEMAN COUNTIES UNTIL 10 PM CDT THIS SATURDAY EVENING. AT 5 PM CDT SCATTERED RAINSHOWERS WERE OVER THE WESTERN PORTIONS OF SCURRY AND MITCHELL COUNTIES...AND THUNDERSTORMS WERE DEVELOPING IN CONCHO COUNTY...SOUTHWEST OF PAINT ROCK. WEATHER CONDITIONS ACROSS NORTH AND WEST TEXAS ARE FAVORABLE FOR THUNDERSTORM DEVELOPMENT AND BIG COUNTRY RESIDENTS SHOULD STAY ALERT THROUGHOUT THE EVENING. STAY TUNED TO LOCAL RADIO OR TV OR NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION.
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 4:44 PM CDT | Severe Thunderstorm Warning | SJT | Reagan | 61 min |
| May 23, 5:05 PM CDT | Severe Thunderstorm Warning | SJT | Concho, Menard | 55 min |
| May 23, 6:35 PM CDT | Severe Thunderstorm Warning | SJT | Crockett | 40 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1987Every severe thunderstorm warning in 1987
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.