Alert archive / Texas / Flash Flood Warnings in 1997

Flash Flood Warning 21, NWS Fort Worth, TX

February 19, 1997Hamilton County, Texas

NWS Fort Worth, TX issued this flash flood warning at Feb 19, 1997, 11:35 PM CST for Hamilton County, Texas. It was in force for 6 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
Feb 19, 1997, 11:35 PM CST (05:35 UTC)
Expired
Feb 20, 1997, 6:00 AM CST
In force
6 hr
Issued by
NWS Fort Worth, TX
Area
Whole counties

County Hamilton County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 123 km from the middle of the area, began a volume at 05:34 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

Fort Worth, TX (KFWD), launched 00:00Z, 5.6 hours before the alert went out and 147 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, Fort Worth, TX at 00:00Z on 1997-02-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 1997-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 260 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
523 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
260 m²/s²
0-3 km storm-relative helicity
410 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 KFTW 200538
FFWFTW
TXC097-143-193-221-237-363-367-425-497-201200-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
1135 PM CST WED FEB 19 1997
 
THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS EXTENDED THE
FLASH FLOOD WARNINGS UNTIL  600 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL TEXAS
 
   ...COOKE COUNTY...ERATH COUNTY...HAMILTON COUNTY...HOOD COUNTY
   ...JACK COUNTY...PALO PINTO COUNTY...PARKER COUNTY...SOMERVELL COUNTY
   ...WISE COUNTY
 
...FLASH FLOOD WARNINGS FOR COLLIN...DALLAS...DENTON...FANNIN...
GRAYSON...HUNT...JOHNSON...TARRANT AND ROCKWALL COUNTIES HAVE BEEN
CANCELLED...
 
RAINS CONTINUE OVER THE WESTERN PART OF NORTH TEXAS...WITH RAINFALL
AMOUNTS OF TWO INCHES COMMON SINCE THIS AFTERNOON...ALONG WITH
SCATTERED THREE AND FOUR INCH AMOUNTS.  NUMEROUS ROADS ARE FLOODED IN
THE WARNED AREAS...AND CONDITIONS ARE GOING TO WORSEN OVERNIGHT AS
ADDITIONAL HEAVY RAINS MOVE INTO THE AREA.
 
THE STRONG UPPER LEVEL LOW OVER NORTHERN MEXICO IS MOVING TO THE
NORTHEAST AND WILL BE OVER CENTRAL TEXAS THURSDAY.  HEAVY RAINS HAVE
ALREADY DEVELOPED AHEAD OF THE LOW IN WEST AND SOUTHWEST TEXAS...AND
WILL BE MOVING INTO THE WESTERN PART OF NORTH TEXAS BEFORE SUNRISE.
THESE ADDITIONAL HEAVY RAINS WILL INCREASE THE CHANCES FOR FLASH
FLOODING...AND ADDITIONAL WARNINGS WILL LIKELY BE REQUIRED BEFORE
DAYBREAK.
 
RESIDENTS OF THE WARNED AREAS SHOULD BE AWARE OF THIS SERIOUS SITUATION
AS ALREADY HIGH WATERS WILL RAPIDLY RISE EVEN HIGHER WITH ADDITIONAL
RAINFALL.
 
MOST DEATHS IN FLASH FLOODING 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.

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 19, 6:52 PM CSTFlash Flood WarningFWDJack, Palo Pinto, Parker5 hr
Feb 19, 6:52 PM CSTFlash Flood WarningFWDCooke, Denton, Grayson, Wise5 hr
Feb 19, 6:52 PM CSTFlash Flood WarningFWDCollin, Fannin, Hunt, Rockwall5 hr
Feb 19, 6:52 PM CSTFlash Flood WarningFWDDallas, Tarrant5 hr
Feb 19, 6:56 PM CSTFlash Flood WarningFWDErath, Hood, Johnson, Somervell5 hr
Feb 19, 6:56 PM CSTFlash Flood WarningFWDHamilton5 hr
Feb 19, 11:35 PM CSTFlash Flood WarningFWDCooke, Wise6 hr
Feb 19, 11:35 PM CSTFlash Flood WarningFWDErath, Hood, Jack, Palo Pinto, Parker6 hr
Feb 19, 11:35 PM CSTFlash Flood WarningFWDSomervell6 hr
Feb 20, 4:24 AM CSTFlash Flood WarningFWDJohnson, Tarrant4 hr
Feb 20, 4:35 AM CSTFlash Flood WarningFWDComanche, Eastland4 hr
Feb 20, 4:35 AM CSTFlash Flood WarningFWDStephens4 hr
Feb 20, 6:00 AM CSTFlash Flood WarningFWDErath, Hood, Jack, Palo Pinto, Parker4 hr
Feb 20, 6:00 AM CSTFlash Flood WarningFWDHamilton4 hr
Feb 20, 6:00 AM CSTFlash Flood WarningFWDSomervell4 hr
Feb 20, 6:37 AM CSTSevere Thunderstorm WarningFWDComanche, Eastland68 min
Feb 20, 6:46 AM CSTFlash Flood WarningFWDMills3 hr
Feb 20, 7:00 AM CSTSevere Thunderstorm WarningFWDPalo Pinto45 min
Feb 20, 8:28 AM CSTFlash Flood WarningFWDEastland, Stephens, Young3 hr
Feb 20, 8:28 AM CSTFlash Flood WarningFWDComanche3 hr
Feb 20, 9:55 AM CSTFlash Flood WarningFWDJack, Montague, Wise3 hr
Feb 20, 9:55 AM CSTFlash Flood WarningFWDErath, Hood, Palo Pinto, Parker, Somervell3 hr
Feb 20, 9:55 AM CSTFlash Flood WarningFWDHamilton, Lampasas, Mills3 hr
Feb 20, 11:09 AM CSTFlash Flood WarningFWDStephens, Young111 min
Feb 20, 11:09 AM CSTFlash Flood WarningFWDComanche, Eastland111 min
Feb 20, 11:33 AM CSTTornado WarningFWDParker, Wise42 min
Feb 20, 11:55 AM CSTTornado WarningFWDTarrant65 min
Feb 20, 1:36 PM CSTFlash Flood WarningFWDHill, McLennan2 hr
Feb 20, 1:40 PM CSTFlash Flood WarningFWDHill, McLennan2 hr
Feb 20, 2:04 PM CSTFlash Flood WarningFWDCoryell, Hamilton116 min
Feb 20, 2:26 PM CSTFlash Flood WarningFWDHood, Palo Pinto, Parker4 hr
Feb 20, 2:26 PM CSTFlash Flood WarningFWDLampasas, Mills4 hr
Feb 20, 2:26 PM CSTFlash Flood WarningFWDBosque, Erath, Somervell4 hr
Feb 20, 2:55 PM CSTFlash Flood WarningFWDHenderson, Van Zandt4 hr
Feb 20, 3:46 PM CSTFlash Flood WarningFWDHamilton3 hr
Feb 20, 4:15 PM CSTFlash Flood WarningFWDHopkins, Rains4 hr
Feb 20, 4:15 PM CSTFlash Flood WarningFWDDelta4 hr

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.