Alert archive / Texas / Flash Flood Warnings in 1998

Flash Flood Warning 99, NWS Fort Worth, TX

November 12, 1998Milam County, Texas

NWS Fort Worth, TX issued this flash flood warning at Nov 12, 1998, 8:16 PM CST for Milam 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 outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Nov 12, 1998, 8:16 PM CST (02:16 UTC)
Expired
Nov 13, 1998, 2:15 AM CST
In force
6 hr
Issued by
NWS Fort Worth, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Milam County, TX

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 2.3 hours before the alert went out and 210 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 1998-11-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 12 joules per kilogram.LCLEL10008507005003002001001 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, Fort Worth, TX at 00:00Z on 1998-11-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 square meters per square second.1939587897Sfc1 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
12 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
415 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
62 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 KFWD 130221
FFWFTW
TXC289-331-395-130815-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
816 PM CST THU NOV 12 1998

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LEON COUNTY IN TEXAS
  MILAM COUNTY IN TEXAS
  THIS INCLUDES THE CITIES OF...CAMERON...ROCKDALE
  ROBERTSON COUNTY IN TEXAS
  THIS INCLUDES THE CITY OF HEARNE

* UNTIL 215 AM CST

* AT 812 PM CST...DOPPLER RADAR INDICATED HEAVY RAINS CONTINUING 
OVER THE THREE COUNTIES...WITH SOME FLOODING PROBLEMS ALREADY 
REPORTED.

AT 800 PM...FARM ROAD 918 SOUTH OF ROCKDALE WAS ALREADY CLOSED...AND 
MORE CLOSINGS ARE POSSIBLE LATER THIS EVENING IN THE AREA AS HEAVY 
RAINS ARE EXPECTED TO CONTINUE UNTIL MIDNIGHT...WITH ANOTHER ROUND 
OF HEAVY RAIN EXPECTED TOWARD MORNING. AS A RESULT...THIS WARNING 
MAY HAVE TO BE EXTENDED LATER TONIGHT.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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 OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
FORT WORTH.

LAT...LON 3090 9723 3054 9709 3119 9575 3161 9579

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 12, 7:57 PM CSTFlash Flood WarningFWDHenderson, Van Zandt5 hr
Nov 12, 8:16 PM CSTFlash Flood WarningFWDLeon, Robertson6 hr
Nov 12, 8:23 PM CSTFlash Flood WarningFWDRains5 hr
Nov 12, 9:44 PM CSTFlash Flood WarningFWDEllis, Navarro6 hr
Nov 12, 10:36 PM CSTFlash Flood WarningFWDHopkins, Hunt, Kaufman5 hr
Nov 13, 12:14 AM CSTFlash Flood WarningFWDAnderson, Freestone4 hr
Nov 13, 12:36 AM CSTFlash Flood WarningFWDJohnson3 hr
Nov 13, 12:50 AM CSTFlash Flood WarningFWDHenderson, Rains, Van Zandt6 hr
Nov 13, 1:02 AM CSTFlash Flood WarningFWDSomervell6 hr
Nov 13, 2:00 AM CSTFlash Flood WarningFWDLeon, Milam, Robertson5 hr
Nov 13, 3:45 AM CSTFlash Flood WarningFWDAnderson, Ellis, Freestone, Navarro6 hr
Nov 13, 3:45 AM CSTFlash Flood WarningFWDHopkins, Hunt, Rains6 hr
Nov 13, 3:45 AM CSTFlash Flood WarningFWDJohnson6 hr
Nov 13, 3:45 AM CSTFlash Flood WarningFWDKaufman6 hr
Nov 13, 5:53 AM CSTFlash Flood WarningFWDDelta4 hr
Nov 13, 6:45 AM CSTFlash Flood WarningFWDHenderson, Van Zandt3 hr
Nov 13, 6:50 AM CSTFlash Flood WarningFWDMilam3 hr

Nearby

Flash Flood Warnings in Texas, 1998Every flash flood warning in 1998

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.