Alert archive / Texas / Flash Flood Warnings in 1990
Flash Flood Warning 57, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 23, 1990, 5:10 AM CDT for Val Verde County, Texas. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Sep 23, 1990, 5:10 AM CDT (10:10 UTC)
- Expired
- Sep 23, 1990, 9:00 AM 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 00:00Z, 10.2 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
- 884 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 907 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 81 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 231006
FFWDRT
TXC465-231400-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DEL RIO TX
510 AM CDT SUN SEP 23 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 900 AM FOR PEOPLE IN THE FOLLOWING COUNTY IN
SOUTHCENTRAL TEXAS...VAL VERDE
AT 500 AM CDT RADAR INDICATED THUNDERSTORMS WITH HEAVY RAIN OVER MOST
OF VAL VERDE COUNTY AND EXTENDING SOUTHEAST ALONG THE RIO GRANDE FOR
80 MILES. MOVEMENT WAS GENERALLY NORTHWEST AT 5 TO 10 MPH.
RAINFALL AMOUNTS OF UP TO 5 INCHES DURING THE PAST 24 HOURS HAVE BEEN
REPORTED WITH SOME OF THESE THUNDERSTORMS. ADDITIONAL RAINFALL OVER
SATURATED GROUND WILL ALLOW FOR RAPID RUNOFF INTO THE ALREADY SWOLLEN
RIVERS AND DRAWS.
HIGHWAYS 163...189 AND FM 1024 ARE CLOSED AND WILL REMAIN CLOSED FOR
THE REMAINDER OF THE NIGHT AND TODAY. THE DEVILS RIVER AT BAKERS
CROSSING WAS AT 10 FEET AND STILL RISING. THIS IS 2.5 FEET OVER
HIGHWAY 163 BRIDGE.
PARENTS SHOULD KEEP THIER CHILDREN AWAY FRON RAIN SWOLLEN CREEKS AND
DRAINAGE DITCHES.
CAMPERS AND CANOISTS ALONG THE DEVILS AND DRY DEVILS RIVERS SHOULD
HAVE MOVED TO HIGHER GROUND ALREADY. CAMPERS ALONG THE RIO GRANDE
DOWNSTREAM FROM DRYDEN SHOULD BE ALERT FOR RISING WATER. AT MIDNIGHT
THE RIO GRANDE WAS AT 18 FEET AND THIS WATER WILL CONTINUE DOWNSTREAM
TO LAKE AMISTAD DURING TODAY.
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS
BRIDGES...DIPS.7..OR LOW SPOTS IF WATER COVERS THE ROAD. NEVER TRY TO
CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING
WATER MOVE UP TO HIGHER GROUND.
...A FLASH FLOOD WATCH IS IN EFFECT FOR VAL VERDE COUNTY THROUGH
TODAY...The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 22, 8:20 PM CDT | Flash Flood Warning | EWX | Val Verde | 4 hr |
| Sep 22, 8:35 PM CDT | Flash Flood Warning | EWX | Kinney, Maverick, Uvalde, Zavala | 115 min |
| Sep 23, 12:20 AM CDT | Flash Flood Warning | EWX | Val Verde | 4 hr |
| Sep 23, 10:00 AM CDT | Flash Flood Warning | EWX | Val Verde | 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.