Alert archive / Texas / Flash Flood Warnings in 1988
Flash Flood Warning 2, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at May 29, 1988, 8:13 PM CDT for Comal County, Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 29, 1988, 8:13 PM CDT (01:13 UTC)
- Expired
- May 29, 1988, 11:15 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Comal 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
Victoria Regiona, TX (KVCT), launched 00:00Z, 1.2 hours before the alert went out and 171 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
- 2592 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 695 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 103 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 7.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSAT 300114
FFWSAT
TXC091-300415-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
813 PM CDT SUN MAY 29 1988
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1115 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH TEXAS
...COMAL
HEAVY RAINS ESTIMATED AT BETWEEN 3 AND 4 INCHES THAT FELL OVER THE
SPAN OF ONLY A FEW MINUTES NEAR THE LAKE CANYON DAM IN NORTHERN COMAL
COUNTY HAVE CAUSED A RAPID RISE ALONG THE GUADALUPE RIVER JUST BELOW
THE DAM AND FLOODING OVER MUCH OF THE AREA IN COMAL COUNTY BELOW THE
DAM. THIS WATER WILL CONTINUE TO RISE FOR THE NEXT COUPLE OF HOURS.
EVERYONE NEAR THE DAM IN NORTHERN COMAL COUNTY SHOULD BE READY TO MOVE
TO A SAFE LOCATION AS QUICKLY AS POSSIBLE.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN
REPORTED.
REMEMBER...DEATHS DURING FLASH FLOODING ARE FREQUENTLY RELATED TO
MOTORISTS DRIVING INTO FLOODED LOW WATER CROSSINGS OR FROM CHILDREN
PLAYING NEAR FLOODED STREAMS OR DRAINAGE AREAS.
YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR
SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL WEATHER SERVICE OFFICE.What forecasters said that day
The local office's own words before this flash flood 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 29, 4:13 PM CDT, 4 hours before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 410 PM CDT SUN MAY 29 1988 AT 410 PM AUSTIN WEATHER RADAR INDICATED WIDESPREAD SHOWERS AND A FEW THUNDERSTORMS AROUND CENTRAL TEXAS. ONE INTENSE THUNDERSTROM MOVED ACROSS AUSTIN BETWEEN 330 AND 400 PM. THAT THUNDERSTORM PRODUCED OVER A HALF INCH OF RAIN... WIND GUSTS TO 36 MPH AND PUBLIC REPORTS OF MARBLE SIZE HAIL COVERING THE GROUND ON THE WEST SIDE OF THE CITY. ANOTHER THUNDERSTORM OF ABOUT THE SAME INTENSITY IS LOCATED JUST SOUTH OF LOCKHART... ABOUT 25 MILES SOUTH OF AUSTIN AND IS MOVING TOWARD THE NORTH NEAR 25 MPH. AUSTIN RESIDENTS CAN EXPECT ANOTHER ROUND OF THUNDERSTORMS BETWEEN 430 AND 530 PM.
Special weather statement, May 29, 5:21 PM CDT, 2 hours 52 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 520 PM CDT SUN MAY 29 1988 ...VERY HEAVY RAINS SOUTH OF AUSTIN... AT 515 PM...RADAR SHOWED A VERY LARGE THUNDERSTORM WITH VERY HEAVY RAINS...NEAR 2 INCHES PER HOUR...COVERING A 20 MILE DIAMETER AREA BETWEEN LOCKHART/KYLE AND BUDA. SOME LOCALIZED FLOODING OF LOW SPOTS IS LIKELY OVER THE NEXT HOUR OR SO AS THAT STORM MOVES VERY SLOWLY TOWARDS THE NORTH. OTHER SHOWERS AND THUNDERSTORMjS COVERED ABOUT 50 PERCENT OF CENTRAL TEXAS...WITHIN 100 MILES OF AUSTIN. THOSE TOO WERE MOVING TOWARDS THE NORTH VERY SLOWLY.
Special weather statement, May 29, 6:03 PM CDT, 2 hours 10 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 605 PM CDT SUN MAY 29 1988 ...VERY HEAVY RAINS SOUTH AND SOUTHWEST OF AUSTIN... AT 6 PM...RADAR CONTINUED TO SHOW VERY SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINS...OVER THAT AREA BETWEEN SAN MARCOS/KYLE...CANYON LAKE AND TO WEST OF DRIPPING SPRINGS. SO FAR LOCKHART HAS REPORTED THE HEAVIES RAINFALL...WITH 2.70 INCHES IN ABOUT A TWO HOUR PERIOD. DUE TO THE SLOW MOVEMENT...LOCALIZED FLOODING OF LOW SPOTS IS LIKELY FOR THE NEXT HOUR OR SO...ESPECIALLY IN HAYS COUNTY. GUSTY WINDS AND SMALL HAIL WILL LIKELY ACCOMPANY SOME OF THESE STORMS. PERSONS OUT IN THE HILL COUNTRY TO THE SOUTHWEST AND WEST OF AUSTIN SHOULD PREPARE FOR THESE STORMS DURING THE EARLY EVENING HOURS.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 8:24 PM CDT | Flash Flood Warning | EWX | Blanco, Hays | 2 hr |
| May 29, 11:26 PM CDT | Flash Flood Warning | EWX | Real | 3 hr |
Nearby
Flash Flood Warnings in Texas, 1988Every flash flood warning in 1988
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.