Alert archive / Texas / Flash Flood Warnings in 1990
Flash Flood Warning 41, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jul 23, 1990, 6:30 PM CDT for Val Verde County, Texas. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jul 23, 1990, 6:30 PM CDT (23:30 UTC)
- Expired
- Jul 23, 1990, 10:30 PM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Val Verde 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 12:00Z, 11.5 hours before the alert went out and 66 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
- 419 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 679 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 104 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 KDRT 232328 FFWDRT TXC465-240330- BULLETIN - EBS ACTIVITATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DEL RIO TX 630 PM CDT MON JUL 23 1990 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1030 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY IN SOUTHCENTRAL TEXAS...VAL VERDE. AT 630 PM CDT RADAR INDICATES THUNDERSTORMS WITH A RAINFALL RATE OF 1 TO 2 INCHES PER HOUR LOCATED NEAR PANDALE IN NORTHWEST VAL VERDE COUNTY. OTHER THUNDERSTORMS WERE DEVELOPING BETWEEN LOMA ALTA AND JUNO. THERE WAS LITTLE MOVEMENT. BECAUSE OF RECENT RAINS THE GROUND ALREADY SATURATED AND ADDITIONAL RAINFALLL WILL RUNOFF RAPIDLY FLOODING LOW WATER CROSSINGS AND LOW LYING AREAS. A RAINFALL OBSERVER REPORTS THAT MORE WATER IS DRAINING FROM SUTTON COUNTY INTO NORTHERN VAL VERDE AND THAT LOW WATER CROSSINGS NEAR THE VAL VERDE...CROCKETT AND SUTTON COUNTY LINE IS EXPECTED TO RISE BETWEEN 6 TO 7 FEET. THIS IS HIGHEST LEVEL TODAY. MORE WATER WAS ALSO REPORTED IN JOHNSON DRAW AND WAS APPOACHING THE DEVILS RIVER JUNCTION SOUTH OF JUNO. THIS INCREASE OF WATER INTO THE DEVILS WILL SEND THE LEVEL OF THE MAIN STEM OF THE RIVER BACK UP ALONG HIGHWAYS 163 AND 189. THE HIGHWAY DEPARTMENT REPORTED THAT HIGHWAYS 163 AND 189 IN NORTHERN VAL VERDE COUNTY WILL REMAIN CLOSED TONIGHT BECAUSE OF FLOODED LOW WATER CROSSINGS. FM ROADS 1024 AND 2523 WILL ALSO REMAIN CLOSED TONIGHT. MOTORISTS SHOULD AVOID TRYING TO TRAVEL NORTH ON THESE HIGHWAYS TONIGHT. THE DOLAN CREEK ROAD ACROSS THE DRY DEVILS NEAR LOMA ALTA IS CLOSED BECAUSE OF HIGH WATER. THE SAN FELIPE CREEK IN DEL RIO HAD FALLEN SLIGHTLY SINCE NOON BUT HAD BEGAN TO RISE SLIGHTLY AROUND 4 PM. THE JOHNSON STREET BRIDGE REMAINS CLOSED. THE CREEK REMAINS VERY DANGEROUS TO BE NEAR. PERSONS ARE URGED TO STAY AWAY FROM THE CREEK FOR SAFETY SAKE. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES..DIPS..OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM..EVEN A SMALL ONE..ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 11:15 PM CDT | Flash Flood Warning | EWX | Val Verde | 4 hr |
| Jul 23, 11:42 AM CDT | Flash Flood Warning | EWX | Edwards, Kinney | 5 hr |
Nearby
Flash Flood Warnings in Texas, 1990Every flash flood warning in 1990
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.