Alert archive / Texas / Flash Flood Warnings in 1990

Flash Flood Warning 188, NWS Fort Worth, TX

October 7, 1990Hopkins County, Texas

NWS Fort Worth, TX issued this flash flood warning at Oct 7, 1990, 10:40 PM CDT for Hopkins County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Oct 7, 1990, 10:40 PM CDT (03:40 UTC)
Expired
Oct 8, 1990, 1:45 AM CDT
In force
3 hr
Issued by
NWS Fort Worth, TX
Area
Whole counties

County Hopkins County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 00:00Z, 3.7 hours before the alert went out and 127 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, Longview/Gregg, TX at 00:00Z on 1990-10-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1403 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, Longview/Gregg, TX at 00:00Z on 1990-10-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.193958Sfc1 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
1403 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1397 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 7, 5:23 PM CDT, 5 hours 17 minutes before
TXZ022-026-027-072300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
525 PM CDT SUN OCT 7 1990

AT 525 PM... NATIONAL WEATHER SERVICE RADAR INDICATED A STRONG THUNDERSTORM
OVER LAKE TAWAKONI.  THE STORM WAS 10 MILES SOUTH SOUTHEAST OF GREENVILLE.
THE STORM WAS MOVING SOUTHEAST AT ABOUT 15 TO 20 MILES AN HOUR.

THIS IS A DANGEROUS THUNDERSTORM CAPABLE OF PRODUCING VERY STRONG WINDS
AND SOME HAIL.  PERONS ON LAKE TAWAKONI SHOULD MOVE TO SAFETY IMMEDIATELY.

STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Oct 7, 9:47 PM CDT, 53 minutes before
TXZ021>032-080400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
945 PM CDT SUN OCT 7 1990

...SEVERE THUNDERSTORM WATCH FOR THE REMAINING PART OF NORTHEAST TEXAS
EXPIRED AT 900 PM...

AT 940 PM CDT...SCATTERED SHOWERS AND THUNDERSTORMS...SOME PRODUCING
HEAVY RAINS...WERE OCCURRING OVER PART OF NORTHEAST TEXAS EXTENDING INTO
SOUTHEAST OKLAHOMA.  MOST OF THE PRECIPITATION WAS IN AN AREA GENERALLY
NORTH OF A LINE FROM DALLAS TO LAKE OF THE PINES TO TEXARKANA.  OTHER
SCATTERED SHOWERS WITH A FEW EMBEDDED THUNDERSTORMS WERE LOCATED FROM
ABILENE TO BRECKENRIDGE TO DENTON AND BETWEEN GREENVILLE...SHERMAN AND
DENTON.  MOVEMENT WAS TO THE NORTHEAST AT 20 MILES AN HOUR.

THE STRONGER THUNDERSTORMS THAT REMAIN OVER NORTHEAST TEXAS FROM PARIS
SOUTHWARD TO SULPHUR SPRINGS ARE CAPABLE OF PRODUCING BRIEF HEAVY RAINS...
STRONG GUSTY SURFACE WINDS...DANGEROUS CLOUD TO GROUND LIGHTNING...AND
PERHAPS SOME SMALL HAIL.

SOME FLOODING OF FLOOD PRONE AND LOW-LYING AREAS IS POSSIBLE SO MOTORISTS
ARE ADVISED NOT TO DRIVE INTO AREAS WERE WATER COVERS THE ROAD.  REMEMBER
...IF THREATENING WEATHER CONDITIONS ARE SIGHTED OR A WARNING IS ISSUED
...BE PREPARED TO MOVE TO A PLACE OF SAF+ETY IMMEDIATELY.

STAY TUNED TO NOAA WEATHER RADIO...LOCAL RADIO OR T. V. FOR LATER
STATEMENTS OR POSSIBLE WARNINGS SHOULD CONDITIONS WARRANT.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 7, 7:29 PM CDTSevere Thunderstorm WarningFWDWood61 min
Oct 7, 9:31 PM CDTSevere Thunderstorm WarningFWDHopkins59 min
Oct 7, 9:50 PM CDTTornado WarningFWDHopkins40 min
Oct 7, 11:12 PM CDTSevere Thunderstorm WarningFWDRed River63 min

Nearby

Flash Flood Warnings in Texas, 1990Every flash flood warning in 1990

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.