Alert archive / Texas / Flash Flood Warnings in 1986
Flash Flood Warning 40, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 18, 1986, 4:26 AM CDT for Bexar County, Texas. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Jun 18, 1986, 4:26 AM CDT (09:26 UTC)
- Expired
- Jun 18, 1986, 9:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Bexar 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, 9.4 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
- 1157 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 807 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 107 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 180926 FFWSAT TXC029-181400- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANTONIO TX 426 AM CDT WED JUN 18 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 900 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF SOUTH CENTRAL TEXAS...BEXAR HEAVY RAIN THAT DEVELOPED JUST AFTER MIDNIGHT HAS CONTINUED ACROSS THE NORTH AND WEST PORTIONS OF BEXAR COUNTY. OVER 2 INCHES OF RAIN HAS BEEN FALLEN IN THAT TIME IN THE NORTHWEST CORNER OF THE COUNTY. LOW WATER CROSSINGS ARE BEGINNNING TO COLLECT WATER AND FLASH FLOODING IS LIKELY WITHIN THE NEXT HOUR. A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR HAS BEEN REPORTED. TAKE NECESSARY PRECAUTIONS AS REQUIRED TO PROTECT LIFE AND PROPERTY. IF THREATENING WEATHER APPROACHES..YOU SHOULD GO TO A SAFE PLACE IMMEDIATELY. YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR SEVERE WEATHER RSEPORTS 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, Jun 18, 3:00 AM CDT, 1 hour 26 minutes before
KSAT 171912 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 300 AM CDT WED JUN 18 1986 ...SLOW MOVING THUNDERSHOWERS HAVE DEVELOPED OVER BEXAR COUNTY... A 300 AM THIS MORNING THUNDERSHOWERS HAVE DEVELOPED OVER BEXAR COUNTY AND WERE MOVING SLOWLY NORTHWEST AT ABOUT 5 MPH. THE THUNDERSHOWERS WERE MOSTLY OVER THE WESTERN HALF OF BEXAR COUNTY WITH THE HEAVIEST LOCATED OVER THE NORTH PART OF THE COUNTY. BECAUSE OF THE SLOW MOVEMENT OF THESE THUNDERSHOWERS..RAINFALL AMOUNTS COULD BE HEAVY. THEREFORE LOW WATER CROSSINGS AND SMALL CREEKS COULD FLOOD RAPIDLY. MOTORISTS SHOULD EXERCISE EXTREME CAUTION AND NOT TRY TO CROSS FLOODED ROADS. ADDITIONAL STATEMENTS WILL BE ISSUED AS NECESSARY.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 6:45 AM CDT | Flash Flood Warning | EWX | Bandera | 3 hr |
| Jun 18, 8:56 AM CDT | Flash Flood Warning | EWX | Bexar | 3 hr |
| Jun 18, 9:55 AM CDT | Flash Flood Warning | EWX | Bandera | 3 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.