Alert archive / Texas / Flash Flood Warnings in 1986
Flash Flood Warning 72, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Dec 22, 1986, 6:20 PM CST for Bexar County, Comal County, Guadalupe County, Texas. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Dec 22, 1986, 6:20 PM CST (00:20 UTC)
- Expired
- Dec 22, 1986, 10:15 PM CST
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Bexar County, TX, Comal County, TX, Guadalupe 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
Del Rio, TX (KDRT), launched 00:00Z, 0.3 hours before the alert went out and 252 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 740 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -55 m²/s²
- 0-3 km storm-relative helicity
- -29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 230020 FFWSAT TXC029-091-187-230415- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANTONIO TX 620 PM CST MON DEC 22 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1015 PM CST FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTH CENTRAL TEXAS...BEXAR...COMAL AND GUADALUPE WIDESPREAD RAINFALL OVER BEXAR...COMAL AND GUADALUPE COUNTIES THIS AFTERNOON AVERAGED NEAR 3 INCHES WITH ISOLATED TOTALS TO NEAR 6 INCHES. MOST LOW WATER CROSSINGS OVER THESE THREE COUNTIES ARE NOW UNDER WATER...WITH FLOODING EXPECTED TO BECOME WORSE IN THE NEXT 2 HOURS AS ADDITIONAL WATER FROM RAINFALL UPSTREAM ADDS TO THE FLOODING. MANY LOW AREAS AND POORLY DRAINED AREAS WILL REMAIN UNDER WATER THROUGH THE NEXT SEVERAL HOURS AS WELL. A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR HAS BEEN REPORTED. TAKE NECESSARY PRECAUTIONS AS REQUIRED TO PROTECT LIFE AND PROPERTY. REMEMBER..DEATHS DURING FLASH FLOODING ARE FREQUENTLY RELATED TO MOTORISTS DRIVING INTO FLOODED LOW WATER CROSSINGS. IF THREATENING WEATHER APPROACHES..YOU SHOULD GO TO A SAFE PLACE IMMEDIATELY. YOU SHOULD ASK THE NEAREST LAW ENFORCE0MENT AGENCY TO RELAY YOUR SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL WEATHER SERVICE OFFICE. PLEASE LISTEN TO YOUR LOCAL RADIO..TV OR NOAA WEATHER RADIO STATION FOR LATER STATEMENTS OR WARNINGS REGARDING THIS HEAVY RAIN EVENT.
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, Dec 22, 1:17 PM CST, 5 hours 3 minutes before
BULLETIN URBAN AND SMALL STREAM FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 115 PM CST MON DEC 22 1986 WIDESPREAD RAINS CONTINUE ACROSS A LARGE EXPANSE OF THE HILL COUNTRY AND SOUTH CENTRAL TEXAS AT THIS HOUR. SATELLITE PHOTOS AND RADAR OBSERVATIONS SHOW MORE RAIN MOVING FROM THE RIO GRANDE INTO SOUTH TEXAS. SOME OF THE RAIN TOTALS DURING THE NIGHT AND MORNING HAVE EXCEEDED 5 INCHES. ADDITIONAL 1 TO 3 INCH AMOUNTS COULD OCCUR THIS AFTERNOON AND TONIGHT. SINCE THE GROUND IS WELL SATURATED...ANY MORE RAIN WILL NOT SOAK IN BUT BEGIN TO RUN OFF INTO SWOLLEN CREEKS AND RIVERS...AND ADD TO THE THREAT OF FLOODING. SOME URBAN FLOODING OF STREETS...LOW-WATER CROSSINGS AND CREEKS HAVE ALREADY BEEN REPORTED IN AND AROUND SAN ANTONIO AND BEXAR COUNTY...MORE COULD OCCUR THIS AFTERNOON AND TONIGHT AS RAINS CONTINUE. < MOTORISTS SHOULD EXERCISE CAUTION ON WET SLICK STREETS...AND NOT TRY TO CROSS SWOLLEN LOW-WATER CROSSINGS OR DRIVE AROUND BARRICADES. FLOOD-PRONE UNDERPASSES IN AND AROUND SAN ANTONIO SHOULD BE APPROACHED WITH CAUTION. CAMPERS SHOULD MOVE TO HIGH GROUND AWAY FROM THE FLOOD PLAINS OF CREEKS AND RIVERS. PARENTS SHOULD DISCOURAGE CHILDREN FROM PLAYING IN OR NEAR FLOOD DRAINAGE DITCHES...LOW-WATER CROSSINGS OR CREEKS SUBJECT TO RAPIDLY RISING WATERS. THE RAINS ARE EXPECTED TO CONTINUE THROUGH THE LATE AFTERNOON AND EARLY EVENING RUSH HOUR...AND PROBABLY THROUGH THE EVENING CHRISTMAS SHOPPING TIMES. PLEASE STAY TUNED FOR LATER STATEMENTS OR POSSIBLE WARNINGS. LEON... CIBOLO...OLMOS AND SALADO CREEKS IN AND AROUND BEXAR COUNTY AND SAN ANTONIO WILL BE NEAR OR OUT OF BANKS MUCH OF THE AFTERNOON AND INTO TONIGHT...STAGES AND FORECAtSTS WILL BE ISSUED AS INFORMATION BECOMES AVAILABLE.
Special weather statement, Dec 22, 5:51 PM CST, 29 minutes before
BULLETIN URBAN AND SMALL STREAM FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 555 PM CST MON DEC 22 1986 WIDESPREAD RAIN CONTINUED OVER MOST OF SOUTH TEXAS JUST BEFORE 600 PM. THE RAIN AREA...AS INDICATED BY WEATHER SERVICE RADAR AND SATELLITE OBSERVATIONS...WAS MOVING SLOWLY EASTWARD. RAINFALL TOTALS SINCE LAST NIGHT FROM THE HILL COUNTRY SOUTHEASTWARD TO SOUTH CENTRAL TEXAS HAVE AVERAGED FROM 1 TO 2 INCHES. RAINFALL FROM FREDERICKSBURG TO SAN MARCOS...SEGUIN...JOURDANTON AND SAN ANTONIO BACK TO FREDERICKSBURG AVERAGED FROM 2 TO 3 INCHES WITH ISOLATED TOTALS OF MORE THAN 4 INCHES. SO FAR...THE GREATEST RAIN REPORT WAS NEAR 6 INCHES FROM THE CITY OF LIVE OAK...JUST NORTHEAST OF SAN ANTONIO. THE WIDESPREAD RAIN HAS SATURATED THE GROUND...CAUSING SOME SHORT LIVED FLOODING OF URBAN STREETS AND ROADS. LOW LYING AREAS AND POORLY DRAINED AREAS WILL CONTINUE TO HAVE PROBLEMS AS WELL...AS RAIN IS EXPECTED TO CONTINUE FROM THE HILL COUNTRY ACROSS SOUTH CENTRAL TEXAS TONIGHT. MOTORISTS SHOULD EXERCISE CAUTION ON THE WET AND SLICK STREETS...AVOID FLOODED LOW-WATER CROSSINGS AND NOT TRY TO DRIVE AROUND BARRICADES. PARENTS SHOULD MAKE CERTAIN CHILDREN DO NOT PLAY IN OR NEAR FLOODED STREAMS OR CREEKS. FLOODING IS ALSO OCCURRING ALONG PORTIONS OF LEON CREEK AND SALADO CREEK IN SAN ANTONIO. LEON CREEK NEAR KELLY AIR FORCE BASE IS EXPECTED TO REMAIN AT 10 TO 12 FEET THROUGH MIDNIGHT...FLOOD STAGE IS 13 FEET. THE HEAVIEST FLOODING ALONG SALADO CREEK IS EXPECTED TO OCCUR FROM NEAR LOOP 410 IN NORTHEAST SAN ANTONIO SOUTHWARD ACROSS THE EASTERN PORTION OF THE CITY TO NEAR LOOP 13. PERSONS LIVING IN AREAS PRONE TO FLOODING ALONG THIS PORTION OF SALADO CREEK SHOULD BE PREPARED TO MOVE TO A SAFE LOCATION.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 22, 9:43 PM CST | Flash Flood Warning | EWX | Bexar, Comal, Guadalupe | 4 hr |
Nearby
Flash Flood Warnings in Texas, 1986Every flash flood 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; the sounding from the Mesonet's radiosonde archive.