Alert archive / Texas / Flash Flood Warnings in 1997

Flash Flood Warning 1, NWS Fort Worth, TX

February 12, 1997Johnson County, Texas

NWS Fort Worth, TX issued this flash flood warning at Feb 12, 1997, 2:10 PM CST for Johnson County, Texas. It was in force for 4 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 12, 1997, 2:10 PM CST (20:10 UTC)
Expired
Feb 12, 1997, 6:15 PM CST
In force
4 hr
Issued by
NWS Fort Worth, TX
Area
Whole counties

County Johnson County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 22 km from the middle of the area, began a volume at 20:09 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 12:00Z, 8.2 hours before the alert went out and 51 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 12:00Z on 1997-02-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 12:00Z on 1997-02-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -89 square meters per square second.1939587897117Sfc1 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
497 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
-89 m²/s²
0-3 km storm-relative helicity
-55 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 122017
FFWFTW
TXC251-130015-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
210 PM CST WED FEB 12 1997
 
THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 615 PM CST FOR PEOPLE IN
JOHNSON COUNTY.
 
AT 210 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATED 4 TO 6
INCHES OF RAIN OVER EASTERN JOHNSON COUNTY DURING THE LAST 18 HOURS
...RESULTING IN SOME ROAD CLOSURES.  WITH MORE HEAVY RAINFALL ON THE
WAY...FLASH FLOODING MAY SPREAD THROUGH THE REST OF THE COUNTY.
 
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.
 
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.
 
 
&

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, Feb 12, 10:40 AM CST, 3 hours 30 minutes before
TXZ098>101-113>116-127>129-122300-

SNOW ADVISORY
NATIONAL WEATHER SERVICE FORT WORTH TX
1040 AM CST WED FEB 12 1997

...THE SNOW ADVISORY HAS BEEN CANCELLED FOR THE NORTHWESTERN PART OF
NORTH TEXAS...

TEMPERATURES WILL REMAIN TOO WARM FOR THE RAIN TO CHANGE OVER TO SNOW
THIS AFTERNOON.  BY THE TIME TEMPERATURES ALOFT COOL ENOUGH TO CHANGE
THIS EVENING...PRECIPITATION WILL BE ENDING...AND NO SIGNIFICANT
ACCUMULATION WILL OCCUR.

ANOTHER UPPER LEVEL STORM WILL MOVE INTO WEST TEXAS ON THURSDAY...
BRINGING ANOTHER CHANCE OF SLEET AND SNOW TO THE AREA BY THURSDAY
AFTERNOON.
Special weather statement, Feb 12, 10:43 AM CST, 3 hours 27 minutes before
TXZ098>101-113>116-127>129-122300-

SNOW ADVISORY
NATIONAL WEATHER SERVICE FORT WORTH TX
1040 AM CST WED FEB 12 1997

...THE SNOW ADVISORY HAS BEEN CANCELLED FOR THE NORTHWESTERN PART OF
NORTH TEXAS...

TEMPERATURES WILL REMAIN TOO WARM FOR THE RAIN TO CHANGE OVER TO SNOW
THIS AFTERNOON.  BY THE TIME TEMPERATURES ALOFT COOL ENOUGH TO CHANGE
THIS EVENING...PRECIPITATION WILL BE ENDING...AND NO SIGNIFICANT
ACCUMULATION WILL OCCUR.

ANOTHER UPPER LEVEL STORM WILL MOVE INTO WEST TEXAS ON THURSDAY...
BRINGING ANOTHER CHANCE OF SLEET AND SNOW TO THE AREA BY THURSDAY
AFTERNOON.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 12, 3:10 PM CSTFlash Flood WarningFWDEllis3 hr
Feb 12, 3:19 PM CSTFlash Flood WarningFWDMcLennan3 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.