Alert archive / Texas / Flash Flood Warnings in 1998

Flash Flood Warning 59, NWS Fort Worth, TX

June 4, 1998Grayson County, Texas

NWS Fort Worth, TX issued this flash flood warning at Jun 4, 1998, 7:15 PM CDT for Grayson County, Texas. It was in force for 3 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
Jun 4, 1998, 7:15 PM CDT (00:15 UTC)
Expired
Jun 4, 1998, 10:15 PM CDT
In force
3 hr
Issued by
NWS Fort Worth, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Grayson County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 136 km from the middle of the area, began a volume at 00:19 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, 0.3 hours before the alert went out and 110 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 1998-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3547 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 00:00Z on 1998-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.19395878Sfc1 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
3547 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1435 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.6
Supercell composite
6.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFTW 050017
FFWFTW
TXC181-050315-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
715 PM CDT THU JUN 4 1998

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

   * FLASH FLOOD WARNING FOR
     GRAYSON COUNTY IN TEXAS
     INCLUDING SHERMAN AND DENISON

   * UNTIL 1015 PM CDT

   * AT 715 PM CDT WEATHER SERVICE DOPPLER RADAR DETECTED VERY HEAVY 
     RAIN NEAR WHITESBORO. LAW ENFORCEMENT OFFICIALS REPORT FLOODING 
     JUST NORTH OF WHITESBORO. 

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 3391 9694 3342 9682 3340 9641 3378 9637

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, Jun 4, 3:08 PM CDT, 4 hours 7 minutes before
TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-050200-

SEVERE WEATHER OUTLOOK FOR NORTH TEXAS
NATIONAL WEATHER SERVICE FORT WORTH TX
308 PM CDT THU JUN 4 1998

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS LATE THIS AFTERNOON
AND TONIGHT FOR THE NORTHERN HALF OF NORTH TEXAS.  THE SLIGHT RISK
AREA IS GENERALLY NORTH OF A LINE FROM ATHENS TO WAXAHACHIE TO
EASTLAND.

THIS INCLUDES THE CITIES OF PARIS...SHERMAN/DENISON...GREENVILLE...
BOWIE...GAINESVILLE...THE DALLAS/FORT WORTH METROPLEX...MINERAL
WELLS...AND BRECKENRIDGE.

LATE THIS AFTERNOON A COLD FRONT EXTENDED FROM JUST SOUTH OF LUBBOCK
TO JUST NORTH OF WICHITA FALLS TO NEAR FORT SMITH ARKANSAS. THIS
FRONT HAS REMAINDED STATIONARY MOST OF THE DAY BUT WILL BEGIN
TO MOVE SLOWLY SOUTHWARD THIS EVENING AND OVERNIGHT AND EXTEND FROM
A PARIS TO DENTON LINE BY EARLY FRIDAY MORNING. MEANWHILE A DRYLINE
EXTENDED FROM NEAR THE FRONT JUST SOUTHWEST OF WICHITA FALLS...TO
JUST WEST OF ABILENE TO JUST WEST OF SAN ANGELO.

THE AIRMASS IN NORTH TEXAS EAST AND SOUTH OF THE FRONT AND DRY LINE
REMAINS VERY MOIST AND UNSTABLE.  TEMPERATURES ALOFT HAVE COOLED
DURING THE PAST SEVERAL DAYS RESULTING IN A WEAKER CAP.  THE COOL AIR
ASSOCIATED WITH THE FRONT MAY PROVIDE ENOUGH LIFT TO BREAK THE CAP
ACROSS NORTHWEST TEXAS AND SOUTHWESTERN OKLAHOMA BEGINNING LATE THIS
AFTERNOON AS TEMPERATURES REACH THEIR HIGHS FOR THE DAY.  SCATTERED
THUNDERSTORMS SHOULD THEN MOVE SOUTH AND EAST INTO THE WESTERN PART
OF NORTH TEXAS. THUNDERSTORMS SHOULD THEN SPREAD EASTWARD THROUGH THE
REMAINDER OF THE RISK AREA TONIGHT. GIVEN THE AMOUNT OF
INSTABILITY...ONCE STORMS DEVELOP RAPID INTENSIFICATION IS LIKELY.

THE MAIN THREAT FROM THESE STORMS WILL BE LARGE HAIL AND STRAIGHT
LINE DAMAGING WINDS...ALTHOUGH AN ISOLATED TORNADO IS POSSIBLE.
EMERGENCY MANAGERS GENERALLY WEST OF A HENRIETTA TO EASTLAND LINE
SHOULD EXPECT ACTIVATION BY SUNSET. THOSE EAST OF THIS LINE SHOULD BE
ON STANDBY FOR ACTIVATION TONIGHT.

STAY TUNED TO LOCAL RADIO AND TV STATIONS...NOAA WEATHER RADIO...OR
YOUR LOCAL CABLE PROVIDER FOR THE LATEST WEATHER INFORMATION.
Special weather statement, Jun 4, 3:08 PM CDT, 4 hours 7 minutes before
TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-050200-

SEVERE WEATHER OUTLOOK FOR NORTH TEXAS
NATIONAL WEATHER SERVICE FORT WORTH TX
308 PM CDT THU JUN 4 1998

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS LATE THIS AFTERNOON
AND TONIGHT FOR THE NORTHERN HALF OF NORTH TEXAS.  THE SLIGHT RISK
AREA IS GENERALLY NORTH OF A LINE FROM ATHENS TO WAXAHACHIE TO
EASTLAND.

THIS INCLUDES THE CITIES OF PARIS...SHERMAN/DENISON...GREENVILLE...
BOWIE...GAINESVILLE...THE DALLAS/FORT WORTH METROPLEX...MINERAL
WELLS...AND BRECKENRIDGE.

LATE THIS AFTERNOON A COLD FRONT EXTENDED FROM JUST SOUTH OF LUBBOCK
TO JUST NORTH OF WICHITA FALLS TO NEAR FORT SMITH ARKANSAS. THIS
FRONT HAS REMAINDED STATIONARY MOST OF THE DAY BUT WILL BEGIN
TO MOVE SLOWLY SOUTHWARD THIS EVENING AND OVERNIGHT AND EXTEND FROM
A PARIS TO DENTON LINE BY EARLY FRIDAY MORNING. MEANWHILE A DRYLINE
EXTENDED FROM NEAR THE FRONT JUST SOUTHWEST OF WICHITA FALLS...TO
JUST WEST OF ABILENE TO JUST WEST OF SAN ANGELO.

THE AIRMASS IN NORTH TEXAS EAST AND SOUTH OF THE FRONT AND DRY LINE
REMAINS VERY MOIST AND UNSTABLE.  TEMPERATURES ALOFT HAVE COOLED
DURING THE PAST SEVERAL DAYS RESULTING IN A WEAKER CAP.  THE COOL AIR
ASSOCIATED WITH THE FRONT MAY PROVIDE ENOUGH LIFT TO BREAK THE CAP
ACROSS NORTHWEST TEXAS AND SOUTHWESTERN OKLAHOMA BEGINNING LATE THIS
AFTERNOON AS TEMPERATURES REACH THEIR HIGHS FOR THE DAY.  SCATTERED
THUNDERSTORMS SHOULD THEN MOVE SOUTH AND EAST INTO THE WESTERN PART
OF NORTH TEXAS. THUNDERSTORMS SHOULD THEN SPREAD EASTWARD THROUGH THE
REMAINDER OF THE RISK AREA TONIGHT. GIVEN THE AMOUNT OF
INSTABILITY...ONCE STORMS DEVELOP RAPID INTENSIFICATION IS LIKELY.

THE MAIN THREAT FROM THESE STORMS WILL BE LARGE HAIL AND STRAIGHT
LINE DAMAGING WINDS...ALTHOUGH AN ISOLATED TORNADO IS POSSIBLE.
EMERGENCY MANAGERS GENERALLY WEST OF A HENRIETTA TO EASTLAND LINE
SHOULD EXPECT ACTIVATION BY SUNSET. THOSE EAST OF THIS LINE SHOULD BE
ON STANDBY FOR ACTIVATION TONIGHT.

STAY TUNED TO LOCAL RADIO AND TV STATIONS...NOAA WEATHER RADIO...OR
YOUR LOCAL CABLE PROVIDER FOR THE LATEST WEATHER INFORMATION.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 7:02 PM CDTSevere Thunderstorm WarningFWDGrayson58 min
Jun 4, 7:14 PM CDTTornado WarningFWDErath, Somervell31 min
Jun 4, 7:20 PM CDTSevere Thunderstorm WarningFWDCooke25 min
Jun 4, 7:26 PM CDTSevere Thunderstorm WarningFWDLampasas64 min
Jun 4, 7:43 PM CDTSevere Thunderstorm WarningFWDDallas77 min
Jun 4, 7:51 PM CDTSevere Thunderstorm WarningFWDCollin, Fannin, Grayson54 min
Jun 4, 7:54 PM CDTSevere Thunderstorm WarningFWDJohnson96 min
Jun 4, 7:58 PM CDTSevere Thunderstorm WarningFWDSomervell47 min
Jun 4, 8:09 PM CDTFlash Flood WarningFWDJohnson, Somervell3 hr
Jun 4, 8:12 PM CDTSevere Thunderstorm WarningFWDTarrant33 min
Jun 4, 8:19 PM CDTSevere Thunderstorm WarningFWDCoryell56 min
Jun 4, 8:34 PM CDTSevere Thunderstorm WarningFWDEllis, Hill56 min
Jun 4, 8:44 PM CDTSevere Thunderstorm WarningFWDBosque, McLennan61 min
Jun 4, 8:48 PM CDTSevere Thunderstorm WarningFWDCollin, Fannin, Hunt42 min
Jun 4, 8:53 PM CDTSevere Thunderstorm WarningFWDLampasas67 min
Jun 4, 8:59 PM CDTSevere Thunderstorm WarningFWDDelta, Hopkins, Lamar, Rains61 min
Jun 4, 9:05 PM CDTSevere Thunderstorm WarningFWDHenderson, Kaufman85 min
Jun 4, 9:05 PM CDTSevere Thunderstorm WarningFWDNavarro85 min
Jun 4, 9:25 PM CDTSevere Thunderstorm WarningFWDCoryell65 min
Jun 4, 9:27 PM CDTSevere Thunderstorm WarningFWDHill63 min
Jun 4, 9:37 PM CDTSevere Thunderstorm WarningFWDVan Zandt68 min
Jun 4, 9:43 PM CDTSevere Thunderstorm WarningFWDBell, McLennan62 min
Jun 4, 10:00 PM CDTSevere Thunderstorm WarningFWDFalls, Limestone60 min
Jun 4, 10:00 PM CDTSevere Thunderstorm WarningFWDFreestone60 min
Jun 4, 10:08 PM CDTFlash Flood WarningFWDMcLennan3 hr
Jun 4, 10:27 PM CDTSevere Thunderstorm WarningFWDHenderson, Navarro63 min
Jun 4, 10:35 PM CDTSevere Thunderstorm WarningFWDAnderson55 min
Jun 4, 10:40 PM CDTSevere Thunderstorm WarningFWDMcLennan35 min
Jun 4, 10:58 PM CDTSevere Thunderstorm WarningFWDFreestone, Limestone62 min
Jun 5, 2:15 AM CDTSevere Thunderstorm WarningFWDMills60 min
Jun 5, 2:23 AM CDTSevere Thunderstorm WarningFWDHamilton67 min
Jun 5, 3:19 AM CDTSevere Thunderstorm WarningFWDCoryell56 min
Jun 5, 3:52 AM CDTSevere Thunderstorm WarningFWDBosque, Coryell, McLennan53 min
Jun 5, 4:14 AM CDTSevere Thunderstorm WarningFWDParker61 min
Jun 5, 4:41 AM CDTSevere Thunderstorm WarningFWDLimestone, McLennan64 min
Jun 5, 4:56 AM CDTSevere Thunderstorm WarningFWDFalls, McLennan64 min
Jun 5, 5:40 AM CDTSevere Thunderstorm WarningFWDFreestone, Leon, Limestone65 min
Jun 5, 9:24 AM CDTSevere Thunderstorm WarningFWDBell66 min
Jun 5, 3:44 PM CDTSevere Thunderstorm WarningFWDMilam31 min
Jun 5, 4:14 PM CDTSevere Thunderstorm WarningFWDMilam31 min
Jun 5, 4:46 PM CDTSevere Thunderstorm WarningFWDRobertson29 min
Jun 5, 5:30 PM CDTSevere Thunderstorm WarningFWDMilam30 min

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.