Alert archive / Texas / Flash Flood Warnings in 1995

Flash Flood Warning 2, NWS Houston/Galveston, TX

January 17, 1995Trinity County, Texas

NWS Houston/Galveston, TX issued this flash flood warning at Jan 17, 1995, 11:20 PM CST for Trinity County, Texas. It was in force for 115 min.

The area

The counties it named.

The facts

Issued
Jan 17, 1995, 11:20 PM CST (05:20 UTC)
Expired
Jan 18, 1995, 1:15 AM CST
In force
115 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Trinity County, TX

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 00:00Z, 5.3 hours before the alert went out and 149 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 1995-01-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1995-01-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
627 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
204 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 KHOU 180522
FFWHOU
TXC455-180715-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON TX
1120 PM CST TUE JAN 17 1995
 
THE NATIONAL WEATHER SERVICE IN HOUSTON HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  115 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST TEXAS
 
   ...TRINITY COUNTY
 
SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MOVE OVER PARTS OF
THE COUNTY. THIS ACTIVITY WILL PRODUCE ADDITONAL RAINFALL AMOUNTS FROM
1/2 TO 1 INCH.
 
WATER WILL CONTINUE TO COVER SOME ROADWAYS. TRINITY COUNTY SHERIFFS
REPORT HIGH WATER ON ROADS FROM APPLE SPRING TO HELMIC TO GROVETON.
HIGH WATER HAS WASHED OUT UNPAVED ROADS NEAR APPLE SPRING. RUNOFF FROM
THE CONTINUING SHOWERS WILL FURTHER AGGRAVATE THE POOR ROAD CONDITONS.
 
MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR UNDERPASSES IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.

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.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this flash flood warning went out at Jan 17, 9:04 PM CST, 2 hours 16 minutes earlier.

Area forecast discussion, Jan 17, 9:04 PM CST, 2 hours 16 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON TX
9 PM CST TUE JAN 17 1995

LOOKS LIKE FFG VALUES BETWEEN 1.0 AND 1.5 ARE VALID AS REPORTS OF
FLOODING ALREADY COMING IN FROM NORTHWEST PORTION OF AREA WHERE MODERATE
CONVECTION HAS BEEN TRAINING ALL EVENING.  WITH MAIN DYNAMICS STILL
APPROACHING AND POSSIBILITY OF RICHER MOISTURE  FEED LATER TONIGHT
AND EARLY WEDNESDAY... FEEL NEED TO EXTEND FFA A BIT FURTHER SOUTH
AND EAST.  COORDINATED WITH FTW FOR CONSISTENCY.  NO CHANGES
MADE BEYOND FIRST PERIOD.

30

The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 18, 7:03 AM CSTFlash Flood WarningHGXPolk, San Jacinto, Trinity3 hr
Jan 18, 7:07 AM CSTSevere Thunderstorm WarningHGXBrazos, Grimes53 min
Jan 18, 8:55 AM CSTFlash Flood WarningHGXMontgomery2 hr
Jan 18, 9:05 AM CSTTornado WarningHGXLiberty40 min

Nearby

Flash Flood Warnings in Texas, 1995Every flash flood warning in 1995

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.