Alert archive / Texas / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 148, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jul 17, 1987, 1:58 AM CDT for Kinney County, Texas. It was in force for 62 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
- Jul 17, 1987, 1:58 AM CDT (06:58 UTC)
- Expired
- Jul 17, 1987, 3:00 AM CDT
- In force
- 62 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Kinney 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 |
|---|---|---|---|
| Jul 17, 1:59 AM CDT | Hail 1.75 | Kinney, 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, 7.0 hours before the alert went out and 41 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
- 2501 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 1032 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 8.5
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Jul 16, 8:45 PM CDT, 5 hours 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 845 PM CDT THU JUL 16 1987 AT 840 PM CDT A BROKEN BAND OF SHOWERS AND OCCASIONALLY INTENSE THUNDERSTORMS WAS INDICATED BY RADAR. THIS WEATHER ACTIVITY WAS ALONG THE PECOS VALLEY FROM NORTH OF THE COUNTY LINE...THROUGH THE WESTERN PART OF THE COUNTY AND PASSED SOUTHEASTWARD INTO MEXICO ABOUT 20 MILES WEST OF DEL RIO. THE SHOWERS AND THUNDERSTORMS WERE MOVING BASICLY EAST AT AROUND 20 MPH. THESE SHOWERS AND THUNDERSTORMS SHOULD VERY SHORTLY START AFFECTING THE LAKE AMISTAD AREA AND BOATERS MIGHT NOW THINK OF SAFETY PRECAUTIONS. AS THE THUNDERSTORMS IN THIS BAND MOVE THROUGH THE COUNTY STRONG GUSTS OF WIND TO 50 MPH AND PERIODS OF HEAVY RAIN MAY BE EXPERIENCED. MOTORISTS SHOULD BE ALERT TO FLOODING OF LOW WATER CROSSINGS BOTH INSIDE THE CITY OF DEL RIO AND THE COUNTY IN THE NEXT THREE HOURS. AN UPPER ATMOSPHERE DISTURBANCE JUST NORTH OF THE BIG BEND ACROSS THE PECOS WAS MOVING SLOWLY NORTHEAST AND PERIODICALLY SPEWING OUT BANDS OF SHOWERS AND THUNDERSTORMS. THIS ACTIVITY IS ONLY THE LATEST ROUND AND MORE MAY FOLLOW TONIGHT BEOFRE THE DISTURBANCE CLEARS THE AREA. ADDITIONAL STATEMENTS WILL BE ISSUED IF CONDITIONS WARRANT SO STAY TUNED TO YOUR LOCAL T.V. RADIO OR THE NOAA WEATHER RADIO.
Special weather statement, Jul 16, 9:54 PM CDT, 4 hours 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 955 PM CDT THU JUL 16 1987 AT 945 PM CDT BROKEN BANDS OF SHOWERS AND OCCASIONALLY HEAVY THUNDERSTORMS WERE INDICATED BY RADAR. THIS WEATHER ACTIVITY COVERS MUCH OF VAL VERDE COUNTY. AT 940 PM CDT THE STRONGEST THUNDERSTORMS WERE IN SOUTHERN CROCKETT COUNTY ALONG HIGHWAY 163 JUST NORTH OF THE VAL VERDE COUNTY LINE. THE SHOWERS AND THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT AROUND 20 MPH. THESE SHOWERS AND THUNDERSTORMS ARE AFFECTING THE LAKE AMISTAD AREA AND BOATERS SHOULD THINK OF SAFETY PRECAUTIONS. AS THE THUNDERSTORMS IN THIS BAND MOVE THROUGH THE COUNTY STRONG GUSTS OF WIND TO 35 MPH AND PERIODS OF HEAVY RAIN MAY BE EXPERIENCED. MOTORISTS SHOULD BE ALERT TO FLOODING OF LOW WATER CROSSINGS PARTICULARLY IN THE NORTH OF THE COUNTY NEAR HIGHWAY 163. A STRONG LIGHTNING DISPLAY WAS IN PROGRESSS AND ALL PERSONS SHOULD EXERCISE CAUTION. REMEMBER INSIDE A BUILDING ARE THE SAFEST PLACE DURING A LIGHTNING STORM. AN UPPER ATMOSPHERE DISTURBANCE JUST NORTH OF THE BIG BEND ACROSS THE PECOS WAS MOVING SLOWLY NORTHEAST AND PERIODICALLY SPEWING OUT BANDS OF SHOWERS AND THUNDERSTORMS. THIS ACTIVITY IS ONLY THE LATEST ROUND& AND MORE MAY FOLLOW TONIGHT BEOFRE THE DISTURBANCE CLEARS THE AREA.
Special weather statement, Jul 16, 11:18 PM CDT, 2 hours 40 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1120 PM CDT THU JUL 16 1987 ...THUNDERSTORMS INCREASING OVER HILL COUNTRY AND EDWARDS PLATEAU... A SLOW MOVING UPPER AIR DISTURBANCE OVER SOUTHWEST TEXAS WAS TRIGGERING THE DEVELOPMENT OF SCATTERED SHOWERS AND THUNDERSTORMS OVER PORTIONS OF THE TEXAS HILL COUNTRY AND EDWARDS PLATEAU TONIGHT. SOME OF THE THUNDERSTORMS...ESPECIALLY OVER EASTERN VAL VERDE AND WESTERN EDWARDS COUNTIES WERE PRODUCING VERY HEAVY RAINFALL. ESTIMATES FROM RADAR INDICATED RAINFALL RATES ON THE ORDER OF 3 TO 4 INCHES PER HOUR TO BE OCCURRING IN THE STRONGEST THUNDERSTORMS. MOVEMENT WAS NORTHEAST AT 15 MILES AN HOUR. MANY SECTIONS OF THE HILL COUNTRY AND EDWARDS PLATEAU ARE IN NEED OF GOOD RAINS AND WIDESPREAD FLOODING IS NOT ANTICIPATED TO BE A PROBLEM. HOWEVER...THE RATE AT WHICH THE RAIN IS FALLING MAY PRODUCE TEMPORARY FLOODING OF LOW WATER CROSSINGS AND URBAN STREETS IN SOME LOCATIONS. MOTORISTS SHOULD BE PARTICULARLY ALERT TO THIS POSSIBILITY. THESE SHOWERS AND THUNDERSTORMS ARE EXPECTED TO REMAIN ACTIVE THROUGH MUCH OF TONIGHT AND MOVE INTO PORTIONS OF SOUTH CENTRAL TEXAS BEFORE MORNING. ADDITIONAL STATEMENTS WILL ]BE ISSUED AS CONDITIONS WARRANT. THESE WILL BE BROADCAST OVER LOCAL RADIO...TV AND NOAA WEATHER RADIO.
Special weather statement, Jul 17, 12:25 AM CDT, 1 hour 33 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 1225 AM CDT FRI JUL 17 1987 ...STRONG THUNDERSTORMS OVER WESTERN GILLESPIE COUNTY... AUSTIN RADAR WAS INDICATING STRONG THUNDERSTORMS OVER WESTERN PORTIONS OF GILLISPIE COUNTY...OTHER STRONG THUNDERSTORMS WERE INDICATED TO THE WEST OF LLANO AND SAN SABA COUNTIES. MOVEMENT WAS TOWARDS THE NORTHEAST AT NEAR 20 MPH. THESE THUNDERSTORMS ARE INDICATING A HEAVY RAINFALL RATE OF UP TO THREE INCHES PER HOUR. THE RATE AT WHICH RAIN IS FALLING MAY PRODUCE TEMPORARY FLOODING OF LOW WATER CROSSINGS AND URBAN STREETS IN SOME LOCATIONS. MOTORISTS SHOULD BE ALERT TO THIS POSSIBILITIES.
Special weather statement, Jul 17, 12:27 AM CDT, 1 hour 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
1225 AM CDT FRI JUL 17 1987
...STRONG THUNDERSTORMS OVER WESTERN GILLESPIE COUNTY...
AUSTIN RADAR WAS INDICATING STRONG THUNDERSTORMS OVER WESTERN PORTIONS OF
GILLISPIE COUNTY...OTHER STRONG THUNDERSTORMS WERE INDICATED TO THE WEST
OF LLANO AND SAN SABA COUNTIES. MOVEMENT WAS TOWARDS THE NORTHEAST AT
NEAR 20 MPH.
THESE THUNDERSTORMS ARE INDICATING A HEAVY RAINFALL RATE OF UP TO THREE
INCHES PER HOUR. THE RATE AT WHICH RAIN IS FALLING MAY PRODUCE TEMPORARY
FLOODING OF LOW WATER CROSSINGS AND URBAN STREETS IN SOME LOCATIONS.
MOTORISTS SHOULD BE ALERT TO THIS POSSIBILITIES.
ADDITIONAL STATEMENTS WILL BE ISSUED 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 |
|---|---|---|---|---|
| Jul 17, 1:01 AM CDT | Flash Flood Warning | EWX | Kerr, Real | 4 hr |
| Jul 17, 4:21 AM CDT | Severe Thunderstorm Warning | EWX | Real, Uvalde | 54 min |
| Jul 17, 4:55 AM CDT | Flash Flood Warning | EWX | Kerr | 4 hr |
| Jul 17, 6:19 AM CDT | Flash Flood Warning | EWX | Blanco, Gillespie | 3 hr |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.