Alert archive / Texas / Flash Flood Warnings in 1992
Flash Flood Warning 95, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Dec 15, 1992, 6:06 AM CST for Williamson County, Texas. It was in force for 59 min.
The area
The counties it named.
The facts
- Issued
- Dec 15, 1992, 6:06 AM CST (12:06 UTC)
- Expired
- Dec 15, 1992, 7:05 AM CST
- In force
- 59 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Williamson County, TX
The nearest sounding before it
Stephenville/Cla, TX (KSEP), launched 12:00Z, 0.1 hours before the alert went out and 181 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
- 0 m above ground
- 0-6 km bulk shear
- 94 kt
- 0-1 km storm-relative helicity
- -69 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 151208 COR FFWAUS TXC491-151400- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING...CORRECTED NATIONAL WEATHER SERVICE AUSTIN TX 606 AM CST TUE DEC 15 1992 THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 800 AM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL TEXAS ...WESTERN WILLIAMSON COUNTY AT 6 AM...THUNDERSTORMS WITH VERY HEAVY RAINFALL WERE OVER WESTERN WILLIAMSON COUNTY AROUND JARRELL AND LIBERTY HILL. THESE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 20 MILES AN HOUR. MODERATE RAINS HAVE FALLEN OVER THE WARNED AREA FOR THE LAST 12 HOURS AND ADDITIONAL HEAVY RAINS WILL ONLY RUN OFF AND CAUSE THE RAPID RISE OF STREAMS AND RIVERS. THE WILLIAMSON COUNTY'S SHERIFFS OFFICE REPORTED THAT LOW WATER CROSSINGS WERE FLOODING NEAR JARRELL. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN HIGH WATERS SHOULD BE ABANDONED QUICKLY...THEN GET TO HIGHER GROUND. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT'S IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.
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 15, 4:51 AM CST, 1 hour 15 minutes before
TXZ030-034>037-151300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 450 AM CST TUE DEC 15 1992 ...WINTER WEATHER ADVISORY IN EFFECT THIS MORNING FOR LAMPASAS... SAN SABA AND MILLS COUNTIES... AT 445 AM...RAIN COVERED ALL OF CENTRAL AND SOUTH CENTRAL TEXAS INCLUDING THE TEXAS HILL COUNTRY. HEAVY RAINS WERE NOTED FROM THE UPPER HIGHLAND LAKES SOUTHWARD TO BLANCO. THE RAIN WAS MOVING TO THE NORTHEAST AT 25 MILES AN HOUR. THE RAIN WAS MIXING WITH SLEET AND SNOW OVER THE NORTHERN HILL COUNTRY. ALTHOUGH NO SIGNIFICANT ACCUMULATIONS ARE ANTICIPATED...BRIDGES AND OVERPASSES COULD BECOME ICY AS TEMPERATURES HOVER NEAR FREEZING. MOTORISTS SHOULD EXERCISE CAUTION IF TRAVELING@ INTO THE NORTHERN HILL COUNTRY. ALSO...LOW WATER CROSSINGS COULD BE FLOODED AND MOTORISTS SHOULD NOT ATTEMPT TO CROSS IN THEIR CAR OR BY FOOT. WH
Nearby
Flash Flood Warnings in Texas, 1992Every flash flood warning in 1992
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.