Alert archive / Texas / Flash Flood Warnings in 1990
Flash Flood Warning 58, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 23, 1990, 10:00 AM CDT for Val Verde County, Texas. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Sep 23, 1990, 10:00 AM CDT (15:00 UTC)
- Expired
- Sep 23, 1990, 2:30 PM CDT
- In force
- 5 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, 3.0 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 665 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 297 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 231457 RRA FFWDRT TXC465-231930- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DEL RIO TX 1000 AM CDT SUN SEP 23 1990 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 230 PM FOR PEOPLE IN THE FOLLOWING COUNTY IN SOUTHCENTRAL TEXAS...VAL VERDE AT 955 AM CDT RADAR INDICATED THUNDERSTORMS WITH HEAVY RAIN FROM 75 MILES SOUTH TO 40 MILES NORTH OF DEL RIO. THESE STORMS WERE MOVING SLOWLY TO THE NORTHWEST. AT GLASSCOCK RANCH...12 MILES NORTHEAST OF JUNO...16 FEET OF WATER WAS OVER THE ROAD. THE DEVILS RIVER AT BAKERS CROSSING WAS AT 15.5 FEET AND RISING. AT 600 AM CDT THE PECOS RIVER GAGE AT PANDALE WAS AT 6.32 FEET. HIGHWAYS 163...189...AND FM 1024 REMAIN CLOSED. CAMPERS AND CANOISTS ALONG THE DEVILS...DRY DEVILS...AND PECOS RIVERS SHOULD HAVE MOVED TO HIGHER GROUND. CAMPERS ALONG THE RIO GRANDE DOWNSTREAM FROM DRYDEN SHOULD BE ALERT FOR RISING WATER. AT 6 AM CDT THE RIO GRANDE RIVER GAGE AT DRYDEN WAS AT 18.55 FEET. THIS WATER WILL CONTINUE DOWNSTREAM TO LAKE AMISTAD TODAY. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...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. REMEMBER...A FLASH FLOOD WATCH MEANS THAT FLOODING IS IMMINENT OR ALREADY OCCURRING. TAKE NECESSARY PRECAUTIONS FOR PROTECTION OF LIFE OR PROPERTY IMMEDIATELxY. ...A FLASH FLOOD WATCH IS IN EFFECT FOR VAL VERDE COUNTY THROUGH TODAY...
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, Sep 23, 7:50 AM CDT, 2 hours 10 minutes before
BULLETIN URBAN FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 750 AM CDT SUN SEP 23 1990 BRIEF HEAVY RAIN FROM THUNDERSTORMS MOVED ACROSS THE SOUTHERN PORTION OF THE CITY OF LAREDO BETWEEN 630 AM AND 730 AM THIS MORNING. THE ACTIVITY PRODUCED BETWEEN 1/2 INCH AND 1 INCH OF RAIN. THE LAREDO DEPARTMENT OF PUBLIC SAFETY REPORTS THAT SEVERAL LOW LYING AND POORLY DRAINED AREAS IN THE SOUTH PORTION OF THE CITY ALONG HWY 83 ARE FLOODED AT THIS TIME. SINCE THE RAINFALL AROUND THE CITY HAS DIMINISHED IN THE PAST 20 MINUTES THE FLOODED AREAS WILL BEGIN TO DRAIN SLOWLY. PERSONS ARE URGED NOT TO TRY TO DRIVE THROUGH FLOODED LOW WATER CROSSINGS...BUT RATHER FIND AN ALTERNATE ROUTE AROUND TpHEM. PARENTS ARE URGED TO KEEP CHILDREN AWAY FROM FLOODED CREEKS AND DRAINAGE DITCHES UNTIL THE WATER CAN RECEDE.
Special weather statement, Sep 23, 9:09 AM CDT, 51 minutes before
BULLETIN URBAN FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 910 AM CDT SUN SEP 23 1990 URBAN FLOODING CONTINUES TO BE REPORTED OVER THE SOUTHERN SECTIONS OF THE CITY OF LAREDO FROM RAINS EARLIER THIS MORNING. LIGHT TO MODERATE RAINS CONTINUED AROUND THE LAREDO AREA...SO THE WATER WILL BE SLOW TO RECEDE DURING THE NEXT COUPLE OF HOURS. MOTORISTS ARE URGED TO WATCH FOR WATER IN LOW-LYING AREAS AND AVOID DRIVING THROUGH FLOODED ROADWAYS. ALSO PARENTS ARE URGED TO KEEP CHILDREN AWAY FROM FLOODED DRAINAGE AREAS, CREEKS, AND RIVERS UNTIL THE WATER HAS RECEDED. A FLASH FLOOD WATCH CONTINUES IN EFFECT FOR THE LAREDO AREA THROUGH TODAY. HEAVY RAINS ARE POSSIBLE IN ASSOCIATION WITH% THE FIRST COLD FRONT OF THE SEASON MEETING MOIST UNSTABLE TROPICAL AIR. PEOPLE IN AND AROUND THE LAREDO AREA SHOULD LISTEN FOR WEATHER DEVELOPMENTS THROUGHOUT THE DAY.
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, 5:10 AM CDT | Flash Flood Warning | EWX | Val Verde | 4 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.