Alert archive / Texas / Flash Flood Warnings in 1998

Flash Flood Warning 82, NWS Fort Worth, TX

October 17, 1998Limestone County, Navarro County, Texas

NWS Fort Worth, TX issued this flash flood warning at Oct 17, 1998, 12:45 PM CDT for Limestone County, Navarro 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 outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Oct 17, 1998, 12:45 PM CDT (17:45 UTC)
Expired
Oct 17, 1998, 4:45 PM CDT
In force
4 hr
Issued by
NWS Fort Worth, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Limestone County, TX, Navarro County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 99 km from the middle of the area, began a volume at 17:47 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, 5.8 hours before the alert went out and 118 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 1998-10-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1219 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 1998-10-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 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
1219 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
713 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
226 m²/s²
Significant tornado parameter
1.1
Supercell composite
10.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KFTW 171745
FFWFTW
TXC257-293-349-172145-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
1245 PM CDT SAT OCT 17 1998

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

   * FLASH FLOOD WARNING FOR
     LIMESTONE COUNTY IN TEXAS
     NAVARRO COUNTY IN TEXAS
     KAUFMAN COUNTY IN TEXAS
     INCLUDING TERRELL...MEXIA...KAUFMAN...GROESBECK...FORNEY AND
     CORSICANA

   * UNTIL 445 PM CDT

   * AT 1245 PM CDT WEATHER SERVICE DOPPLER RADAR DETECTED SEVERAL
     LINES OF STRONG THUNDERSTOMRR PRODUCING VERY HEAVY RAINFALL
     EXTENDING SOUTHWARD FROM KEMP TO PARAIRIE HILL AND FROM MEXIA
     TO HEARNE.  HEAVY RAINFALL OF UP TO TWO INCHES PER HOUR WILL
     FALL ALONG THESE PATHES AND ACROSS OTHER AREAS OF THESE
     COUNTIES.

   * OTHER LOCATIONS IN THE WARNING INCLUDE SHILOH...SCURRY...
     ROANE...PURDON...PRAIRIE HILL...KERENS...KEMP...GOODLOW PARK...
     FOREST GLADE...EMMET...DAWSON...CRANDALL...COOLIDGE...BLOOMING
     GROVE AND BEN HUR

MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS
BRIDGES...DIPS...OR OTHER 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 HIGER GROUND.

LAT...LON 3128 9663 3143 9627 3180 9648 3206 9616
          3239 9641 3239 9609 3283 9608 3279 9651
          3238 9641 3208 9686 3186 9675 3175 9692

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, Oct 17, 10:48 AM CDT, 1 hour 57 minutes before
TXZ146-171615-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
1048 AM CDT SAT OCT 17 1998

AT 1044 AM NAVARRO COUNTY SHERIFFS OFFICE REPORTS A TORNADO ON THE
WEST SIDE OF CORSICANA. MOVEMENT WAS NORTHEAST AT 30 TO 35 MPH.
RESIDENTS ON THE WEST AND NORTH SIDES OF CORSICANA TAKE COVER
IMMEDIATELY
Special weather statement, Oct 17, 10:48 AM CDT, 1 hour 57 minutes before
TXZ146-171615-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
1048 AM CDT SAT OCT 17 1998

AT 1044 AM NAVARRO COUNTY SHERIFFS OFFICE REPORTS A TORNADO ON THE
WEST SIDE OF CORSICANA. MOVEMENT WAS NORTHEAST AT 30 TO 35 MPH.
RESIDENTS ON THE WEST AND NORTH SIDES OF CORSICANA TAKE COVER
IMMEDIATELY

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 17, 10:16 AM CDTSevere Thunderstorm WarningFWDBell44 min
Oct 17, 10:32 AM CDTTornado WarningFWDNavarro28 min
Oct 17, 10:59 AM CDTSevere Thunderstorm WarningFWDNavarro31 min
Oct 17, 11:04 AM CDTTornado WarningFWDCoryell, McLennan56 min
Oct 17, 11:12 AM CDTTornado WarningFWDHenderson, Navarro48 min
Oct 17, 11:20 AM CDTFlash Flood WarningFWDBell3 hr
Oct 17, 11:38 AM CDTTornado WarningFWDKaufman52 min
Oct 17, 11:59 AM CDTFlash Flood WarningFWDMcLennan3 hr
Oct 17, 12:26 PM CDTTornado WarningFWDKaufman34 min
Oct 17, 12:45 PM CDTFlash Flood WarningFWDKaufman4 hr
Oct 17, 1:15 PM CDTTornado WarningFWDHill30 min
Oct 17, 1:25 PM CDTFlash Flood WarningFWDVan Zandt3 hr
Oct 17, 3:08 PM CDTFlash Flood WarningFWDDelta, Hopkins, Hunt, Rains3 hr
Oct 17, 4:26 PM CDTSevere Thunderstorm WarningFWDJack34 min
Oct 17, 5:17 PM CDTFlash Flood WarningFWDBell, McLennan3 hr
Oct 17, 6:29 PM CDTFlash Flood WarningFWDMilam, Robertson3 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.