Alert archive / Texas / Flash Flood Warnings in 1998

Flash Flood Warning 111, NWS Fort Worth, TX

November 13, 1998Kaufman County, Texas

NWS Fort Worth, TX issued this flash flood warning at Nov 13, 1998, 3:45 AM CST for Kaufman 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 13, 1998, 3:45 AM CST (09:45 UTC)
Expired
Nov 13, 1998, 10:00 AM CST
In force
6 hr
Issued by
NWS Fort Worth, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Kaufman County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 84 km from the middle of the area, began a volume at 09:46 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, 9.8 hours before the alert went out and 92 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 130957 COR
FFWFTW
TXC001-139-161-223-231-251-257-349-379-131600-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTION 
NATIONAL WEATHER SERVICE FORT WORTH TX
345 AM CST FRI NOV 13 1998

...CORRECTED THE EXPIRATION TIME IN THE COMPUTER CODING...

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ANDERSON COUNTY IN TEXAS
  ELLIS COUNTY IN TEXAS
  FREESTONE COUNTY IN TEXAS
  HOPKINS COUNTY IN TEXAS
  HUNT COUNTY IN TEXAS
  JOHNSON COUNTY IN TEXAS
  KAUFMAN COUNTY IN TEXAS
  NAVARRO COUNTY IN TEXAS
  RAINS COUNTY IN TEXAS

* UNTIL 1000 AM CST

* AT 345 AM CST...WEATHER SERVICE DOPPLER RADAR INDICATED MODERATE
  TO HEAVY RAIN ACROSS MOST OF NORTH TEXAS EAST OF A MCKINNEY 
  TO WACO LINE. RADAR ESTIMATES THAT 2 TO 4 INCHES OF RAIN HAS 
  FALLEN ACROSS THE AREA. THERE HAS ALREADY BEEN FLOODING OF SOME
  FARM TO MARKET ROADS. ADDITIONAL RAIN WILL PRODUCE MORE FLOODING 
  IN LOW LYING SPOTS...AND OTHER FLOOD PRONE AREAS.  

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.

LAT...LON 3251 9759 3233 9729 3209 9688 3150 9616
          3179 9542 3197 9601 3240 9643 3287 9610
          3302 9568 3328 9567 3304 9610 3257 9653

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, 8:16 PM CSTFlash Flood WarningFWDMilam6 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, 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; radar from the NEXRAD Level II archive.