Alert archive / Texas / Flash Flood Warnings in 1995

Flash Flood Warning 30, NWS Houston/Galveston, TX

July 31, 1995Chambers County, Texas

NWS Houston/Galveston, TX issued this flash flood warning at Jul 31, 1995, 12:36 AM CDT for Chambers County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jul 31, 1995, 12:36 AM CDT (05:36 UTC)
Expired
Jul 31, 1995, 3:30 AM CDT
In force
3 hr
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Chambers County, TX

The radar

The Houston radar (KHGX), 47 km from the middle of the area, began a volume at 05:38 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

Lake Charles Mun, LA (KLCH), launched 00:00Z, 5.6 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, Lake Charles Mun, LA at 00:00Z on 1995-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1447 joules per kilogram.LCLEL10008507005003002001001 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, Lake Charles Mun, LA at 00:00Z on 1995-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.1939Sfc1 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
1447 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
540 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this flash flood warning went out at Jul 30, 9:01 PM CDT, 3 hours 35 minutes earlier.

Area forecast discussion, Jul 30, 9:01 PM CDT, 3 hours 35 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON TX
900 PM CDT SUN JUL 30 1995

TROPICAL STORM DEAN CONTS TO BE WX FOCUS.  CENTER (AS OF 0145Z) WAS
ABOUT 4 MILES SOUTH OF SAN LUIS PASS.  RAIN BANDS ASSOCIATED WITH SYSTEM
LUK LIKE THEY WILL ENTRAIN OVER CHAMBERS AND SOUTHERN LIBERTY COUNTY.
88-D ESTIMATES RAINFALL AMOUNTS OF 4 TO 5 INCHES OVER E CHAMBERS COUNTY.
2 CONFIRMED TORNADOES WITH STRONGER STORMS IN THE FIRST RAIN BAND BTWN
7 AND 9 PM.  EACH STORM DEVELOPED NR THE CST AND HAD SIMILAR STRUCTURE.
AM CONCERNED ABOUT THE POSSIBLE DEVELOPMENT OF CORE RAINS AND THE SLOWER
MOVEMENT OF THE SYSTEM DURING THE PAST FEW HOURS.  THE AREA WILL BE
MONITORED FOR FLOODING...AS THE POTENTIAL REMAINS VERY HIGH FOR FLOODING
TO OCCUR.  PREVIOUS FCST IS ON TRACK AND PLAN NO SIGNIFICANT CHANGES.  43

In the hours before

Special weather statement, Jul 30, 10:29 PM CDT, 2 hours 7 minutes before
TXZ177-178-179-199-200-213-214-227-237-238-511-310430-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON TX
1029 PM CDT SUN JUL 30 1995

...TORNADO WATCH ISSUED FOR PORTIONS OF SOUTHEAST TEXAS...

A TORNADO WATCH HAS BEEN ISSUED FOR PORTIONS OF SOUTHEAST TEXAS
EFFECTIVE UNTIL 5 AM CDT MONDAY MORNING IN ASSOCIATION WITH TROPICAL
DEPRESSION DEAN.  ALTHOUGH DEAN IS WEAKENING...THE ATMOSPHERE OVER
SOUTHEAST TEXAS REMAINS VERY UNSTABLE.  SEVERE WEATHER...INCLUDING THE
DEVELOPMENT OF TORNADOES...IS POSSIBLE TONIGHT.

THE FOLLOWING COUNTIES ARE INCLUDED IN THIS TORNADO WATCH...BRAZORIA...
FORT BEND...HARRIS...MONTGOMERY...WALKER...SAN JACINTO...LIBERTY...
GALVESTON...CHAMBERS...AND POLK COUNTIES.

THIS REPLACES THE TORNADO WATCH THAT WAS PREVIOUSLY IN EFFECT FOR
PORTIONS OF SOUTHEAST TEXAS UNTIL MIDNIGHT.

STAY TUNED TO NOAA WEATHER RADIO OR OTHER WEATHER NEWS SOURCES FOR
FURTHER UPDATES.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 7:34 PM CDTTornado WarningHGXChambers56 min
Jul 30, 8:34 PM CDTTornado WarningHGXChambers56 min
Jul 30, 9:34 PM CDTTornado WarningHGXChambers71 min
Jul 30, 10:46 PM CDTTornado WarningHGXChambers, Liberty59 min
Jul 31, 3:19 AM CDTFlash Flood WarningHGXChambers, Liberty4 hr
Jul 31, 4:31 AM CDTFlash Flood WarningHGXChambers, Liberty3 hr

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; radar from the NEXRAD Level II archive.