Alert archive / Texas / Flash Flood Warnings in 1986
Flash Flood Warning 5, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at May 9, 1986, 8:24 PM CDT for 4 counties in Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 9, 1986, 8:24 PM CDT (01:24 UTC)
- Expired
- May 9, 1986, 11:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Burnet County, TX, Lampasas County, TX, Travis County, TX, Williamson 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
Stephenville/Cla, TX (KSEP), launched 00:00Z, 1.4 hours before the alert went out and 165 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
- 1697 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 629 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 3 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 KAUS 100124 FFWAUS TXC021-281-053-453-491-100430- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN TX 824 PM CDT FRI MAY 9 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1130 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF TEXAS...BASTROP...LAMPASAS...BURNET...TRAVIS AND WILLIAMSON AT 820 PM CDT THUNDERSTORMS WITH VERY HEAY RAINS CONTINUE OVER THE CENTRAL TEXAS AREA. HEAVIEST RAINS EXTEND FROM SAN MARCOS TO LAKE BUCHANAN. THE RAIN AREA IS MOVING SLOWLY TOWARD THE NORTH NORTHEAST. RAINFALL REPOETS HAVE TOTALED 2 TO 3 INCHES OVER HAYS AND BLANCO COUNTIES AND IS APPROACHING 2 TO 3 INCHES IN TRAVIS AND WILLIAMSON COUNTIES. MOST CREEKS AND SMALL STREAMS ARE BANKFULL WITH SOME OVER BANK FLOODING. REMEMBER THAT DEATHS DURING FLASH FLOODING ARE OFTEN RELATED TO MOTORISTS DRIVING THROUGH FLOODED LOW WATER CROSSINGS. IF THREATENING WEATHER APPROACHES..YOU SHOULD GO TO A SAFE PLACE IMMEDIATELY AND YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL WEATHER SERVICE OFFICE. PLEASE LISTEN TO YOUR LOCAL RADIO..TV..OR NOA A WEATHER RADIO FOR LATER STATEMENTS REGARDING THIS HEAVY RAIN EPISODE.
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 9, 4:14 PM CDT, 4 hours 10 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 415 PM CDT FRI MAY 9 1986 A TORNADO WATCH IS IN EFFECT FOR A LARGE PORTION OF CENTRAL TEXAS UNTIL 10 PM THIS FRIDAY EVENING. THIS WATCH INCLUDES WILLIAMSON.. TRAVIS AND HAYS COUNTIES AND ALL COUNTIES TO THE WEST.. NORTHWEST AND NORTH OF AUSTIN. AT 415 PM WEATHER RADAR SHOWS A VERY HEAVY THUNDERSTORM 20 MILES SOUTHWEST OF FREDERICKSBURG MOVING SLOWLY TOWARD THE NORTHEAST. OTHER LIGHT SHOWERS ARE SOUTH AND WEST OF AUSTIN.
Special weather statement, May 9, 5:21 PM CDT, 3 hours 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 520 PM CDT FRI MAY 9 1986 A TORNADO WATCH IS IN EFFECT FOR A LARGE PORTION OF CENTRAL TEXAS UNTIL 10 PM THIS FRIDAY EVENING. THIS WATCH INCLUDES WILLIAMSON.. TRAVIS AND HAYS COUNTIES AND ALL COUNTIES TO THE WEST.. NORTHWEST AND NORTH OF AUSTIN. AT 520 PM WEATHER RADAR SHOWS A VERY HEAVY THUNDERSTORM JUST WEST OF SAN SABA COUNTY AND ANOTHER OVER GILLESPIE COUNTY.. RIGHT OVER FREDERICKSBURG.. AND ON SOUTHWEST NEAR BANDERA. THUNDERSTORMS ARE MOVING TOWARD THE NORTH NORTHEAST AT 20 MILES AN HOUR. LIGHT TO MODERATE RAIN AND A FEW THUNDERSHOWERS ALSO COVER A LARGE PORTION OF THE HILL COUNRY AND ARE MOVING TOWARD THE AUSTIN ARiEA. HEAVY RAINS IN GILLESPIE COUNTY WILL CAUSE SOME URBAN FLOODING AROUND FREDERICKSBURG AND MINOR FLOODING OF SMALL CREEKS AND STREAMS FOR THE NEXT HOUR OR TWO.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 8:24 PM CDT | Flash Flood Warning | EWX | Bastrop | 3 hr |
| May 10, 7:09 AM CDT | Flash Flood Warning | EWX | Bandera, Edwards, Kerr, Real | 4 hr |
| May 10, 7:09 AM CDT | Flash Flood Warning | EWX | Kendall | 4 hr |
| May 10, 7:31 AM CDT | Severe Thunderstorm Warning | EWX | Frio | 59 min |
| May 10, 8:35 AM CDT | Severe Thunderstorm Warning | EWX | Atascosa, McMullen | 55 min |
| May 10, 10:00 AM CDT | Severe Thunderstorm Warning | EWX | Goliad | 60 min |
| May 10, 10:12 AM CDT | Severe Thunderstorm Warning | EWX | Victoria | 63 min |
| May 10, 11:16 AM CDT | Severe Thunderstorm Warning | EWX | Calhoun | 59 min |
| May 10, 11:32 AM CDT | Severe Thunderstorm Warning | EWX | Calhoun, Jackson | 68 min |
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.