Alert archive / Texas / Flash Flood Warnings in 1997

Flash Flood Warning 56, NWS Corpus Christi, TX

June 24, 1997La Salle County, McMullen County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Jun 24, 1997, 4:49 PM CDT for La Salle County, McMullen County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 24, 1997, 4:49 PM CDT (21:49 UTC)
Expired
Jun 24, 1997, 7:45 PM CDT
In force
3 hr
Issued by
NWS Corpus Christi, TX
Area
Whole counties

Counties La Salle County, TX, McMullen County, TX

The radar

The Corpus Christi radar (KCRP), 144 km from the middle of the area, began a volume at 21:50 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 9.8 hours before the alert went out and 162 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.

Skew-T log-pSkew-T log-p diagram, Corpus Christi, TX at 12:00Z on 1997-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1410 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 12:00Z on 1997-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1410 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
692 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KCRP 242150
FFWCRP
TXC283-311-250045-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
449 PM CDT TUE JUN 24 1997
 
THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  745 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...S...
 
IN SOUTH CENTRAL TEXAS
 
   ...LA SALLE COUNTY...MCMULLEN COUNTY
 
DOPPLER RADAR CONTINUED TO INDICATE NUMEROUS SHOWERS AND THUNDERTORMS
MOVING NORTHWEST ACROSS LASALLE AND MCMULLEN COUNTIES. THESE SHOWERS AND
THUNDERSTORMS WILL CONTINUE TO PRODUCE VERY HEAVY RAINFALL IN A SHORT
PERIOD OF TIME.
 
ALONG WITH THE HEAVY RAINFALL...DANGEROUS LIGHTNING AND STRONG GUSTY
WINDS CAN BE EXPECTED FOR THE NEXT SEVERAL HOURS.  THE THUNDERSTORMS
WERE MOVING TO THE NORTHWEST AT 15 TO 20 MPH.
 
 
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 RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT.  IT IS
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RRAINS.  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.

NWS Corpus Christi, TX wrote its last area forecast discussion before this flash flood warning went out at Jun 24, 2:32 PM CDT, 2 hours 17 minutes earlier.

Area forecast discussion, Jun 24, 2:32 PM CDT, 2 hours 17 minutes before
COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
200 PM CDT TUE JUN 24 1997

UPPER LOW IN THE LOWER VALLEY TO MOVE VERY VERY SLOWLY TOWARD LRD
IN THE NEXT 24 TO 36 HOURS.  THIS SYSTEM HAS PRODUCED MOSTLY DAY-
TIME PRECIP HOWEVER OVER THE NEXT 24 TO 36 HOURS THE SYSTEM SHOWS
SIGNS OF BECOMING A BIT MORE ORGANIZED. THAT MEANS WITH THE ADDED
UPPER SUPPORT PRECIP COULD CONTINUE INTO THE NIGHTTIME. WILL NEED
TO ISSUE FFA FROM BEEVILLE-CRP WEST INTO THE RIO GRANDE PLAINS.

PRECIP ON WEDNESDAY WILL BE HEAVIEST OUT IN THE RIO GRANDE PLAINS
WHERE 1 TO 3 INCHES POSSIBLE.  CRP ZONES WILL SEE SOME PRECIP AND
LOCALLY HEAVY WITH PRECIP CHANCES DROPPING OFF QUITE A BIT IN THE
EASTERN COUNTIES.  PRECIP CHANCES TO BE HIGH IN THE WESTERN AREAS
DUE TO THE VICINITY OF UPPER LOW AND ASSOCIATED UVVS.

SYSTEM DOES NOT MOVE MUCH IN THE NEXT FEW DAYS AND PRECIP CHANCES
WILL CONTINUE IN THE FORECAST THRU THE END OF THE WEEK.  AN ADDED
BONUS IS THE TROPICAL WAVE IN THE EASTERN GULF MOVING WEST AND IT
MAY HAVE AN AFFECT ON THE RAIN SITUATION BY WEEKS END WILL WATCH.
BIG AREA OF CONCERN FOR FLOODING AND WIDESPREAD RAINS WEST OF A
TILDEN TO ALI LINE.

THE FORECAST NUMBERS ARE NEXT...
...FFA WILL BE WEST OF A LINE FROM NIR TO CRP...
CRP WE 071/091 072/092 075 3534
NGP    075/087 076/088 077
VCT EE 072/090 073/091 073 3232
LRD TW 071/085 071 087 072 5646

LUNA...0074

Nearby

Flash Flood Warnings in Texas, 1997Every flash flood warning in 1997

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; radar from the NEXRAD Level II archive.