Alert archive / Texas / Flash Flood Warnings in 1998

Flash Flood Warning 41, NWS Fort Worth, TX

January 7, 1998Anderson County, Freestone County, Navarro County, Texas

NWS Fort Worth, TX issued this flash flood warning at Jan 7, 1998, 12:01 PM CST for Anderson County, Freestone County, Navarro 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
Jan 7, 1998, 12:01 PM CST (18:01 UTC)
Expired
Jan 7, 1998, 6:00 PM CST
In force
6 hr
Issued by
NWS Fort Worth, TX
Area
Whole counties

Counties Anderson County, TX, Freestone County, TX, Navarro County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 139 km from the middle of the area, began a volume at 18:04 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, 6.0 hours before the alert went out and 156 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 1998-01-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 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 1998-01-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 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
4 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
495 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
97 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 072020 COR
FFWFTW
TXC349-161-001-080000-

FLOOD WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
209 PM CST WED JAN 7 1998

CORRECTED COUNTY CODE HEADER AT TOP...

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL 600 PM CST FOR PEOPLE IN THE FOLLOWING
LOCATIONS...


IN NORTH CENTRAL TEXAS

...NAVARRO COUNTY

IN NORTHEAST TEXAS

...FREESTONE COUNTY...ANDERSON COUNTY

SHERIFF'S DEPARTMENT OFFICIALS CONTINUE TO REPORT THAT NUMEROUS ROADS
REMAIN IMPASSABLE AND SOME ARE CLOSED ACROSS THE AREA DUE TO FLOOD
WATER.  EVEN THROUGH HEAVY RAINS HAVE MOVED OUT OF THE AREA...RUN OFF
WILL CONTINUE TO AGGRAVATE AREA FLOODING THE REST OF THE DAY.
ADDITIONAL FLOODING OF LOW AREAS AND SOME ROADS THAT WERE OPEN
EARLIER IN THE DAY MAY OCCUR.

BE ESPECIALLY CAUTIOUS WHEN DRIVING ON RURAL OR SECONDARY ROADS.  LET
RELATIVES OR OTHER PEOPLE KNOW YOUR TRAVEL PLANS.  DO NOT DRIVE OFF
INTO FLOWING OR HIGH WATER. IF FLOODING OR FLASH FLOODING IS
OBSERVED...ACT QUICKLY BY MOVING TO HIGHER GROUND TO ESCAPE FLOOD
WATERS.  DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS
RISING.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 7, 12:55 AM CSTFlash Flood WarningFWDFreestone, Limestone, Navarro5 hr
Jan 7, 12:55 AM CSTFlash Flood WarningFWDAnderson, Henderson5 hr
Jan 7, 5:45 AM CSTFlash Flood WarningFWDFreestone, Limestone, Navarro6 hr
Jan 7, 5:45 AM CSTFlash Flood WarningFWDAnderson, Henderson6 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.