Alert archive / Texas / Flash Flood Warnings in 2000

Flash Flood Warning 35, NWS Houston/Galveston, TX

November 3, 2000Trinity County, Texas

NWS Houston/Galveston, TX issued this flash flood warning at Nov 3, 2000, 11:15 PM CST for Trinity 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: Nov 3, 2000, 11:15 PM CST (05:15 UTC)
Expired: Nov 4, 2000, 2:15 AM CST
In force: 3 hr
Issued by: NWS Houston/Galveston, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Trinity County, TX

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 5.3 hours before the alert went out and 199 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 84 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 517 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 198 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 
WGUS54 KHGX 040515
FFWHGX
TXC455-040800-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1115 PM CST FRI NOV 3 2000

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON TX HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  TRINITY COUNTY IN SOUTHEAST TEXAS

* UNTIL 215 AM CST

* AT 1115 PM CST...PERSISTENT TRAINING MODERATE TO OCCASIONAL HEAVY
RAINS MOVING SOUTHWEST TO NORTHEAST ACROSS THE COUNTY WILL LIKELY
CAUSE SOME LOW LYING LOCATIONS AND STREETS TO FLOOD WITHIN THE NEXT
COUPLE OF HOURS. RADAR ESTIMATES UP TO 3 INCHES OF RAINFALL ACROSS
THE COUNTY TONIGHT AND ANOTHER 2 TO 3 INCHES IS POSSIBLE BY 2 AM.

* FLOODING IS EXPECTED IN OR NEAR...
  GROVETON...TRINITY...APPLE SPRINGS...SEBASTOPOL...
  WOODLAKE...FRIDAY...PENNINGTON AND CENTRALIA

MOTORISTS SHOULD NOT CROSS ANY LOCATION WHERE WATER COVERS THE
ROAD!

PLEASE REPORT FLOODING TO THE COUNTY SHERIFF...hLOCAL POLICE...OR
DEPARTMENT OF PUBLIC SAFETY. THEY WILL RELAY YOUR REPORT TO THE
NATIONAL WEATHER SERVICE.

LAT...LON 3120 9487 3093 9512 3092 9539 3106 9541
          3137 9496

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 Nov 3, 8:35 PM CST, 2 hours 40 minutes earlier.

Area forecast discussion, Nov 3, 8:35 PM CST, 2 hours 40 minutes before

SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
835 PM CST FRI NOV 3 2000

CURRENT FCST ON TRACK & ONLY PLAN ON TWEAKING WINDS HERE AND THERE
FOR THE UPDATE. MAY DECIDE TO NOTCH POPS UP A TAD ACROSS COASTAL
COUNTIES AT PRESS TIME IF COVERAGE CONTINUES TO EXPAND. PERSISTENT
AREA OF RAINFALL CONTINUES TO TRAIN ACROSS NRN CO'S THIS EVENING.
HEAVIEST RAIN APPEARS TO BE FALLING ALONG THE BOUNDARY EXTENDING
FROM ROUGHLY COLUMBUS TO LIVINGSTON. LATEST IR IMAGES SHOW COOLING
TOPS TO OUR WSW WHICH IS NOT A PARTICULARLY GOOD SIGN. LOOKS LIKE
STEADY RAIN WILL CONTINUE THRU THE NIGHT AND SATURDAY...ESPECIALLY
NRN 2/3...WITH PLENTIFUL PACIFIC MOISTURE BEING SQUEEZED BETWEEN THE
WRN TROF AND THE RIDGE PARKED OVER THE YUCATAN/BAY OF CAMPECHE. SE
FLOW OFF THE GULF ALSO PROVIDING ITS SHARE OF MOISTURE. RAINFALL
RATES NOT AS IMPRESSIVE AS LAST NIGHT...BUT THE PRECIP IS FALLING
ACROSS ALREADY SATURATED GROUNDS. NO RIVER PROBLEMS IN OUR CWA ATTM
BUT WILL CONTINUE TO MONITOR.

.KHGX...FLASH FLOOD WATCH TONIGHT ALONG/NORTH OF A LINE
        FROM COLUMBUS TO CONROE TO LIVINGSTON.
        SCEC COASTAL WATYERS 20-60 NM.

47/34/DO

PRELIMS...
CLL TT 066/077 066/075 064 +87
IAH TT 067/079 066/077 065 655
GLS EE 072/080 072/078 071 433

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 3, 6:18 PM CST	Flash Flood Warning	HGX	Brazos, Burleson	4 hr
Nov 3, 9:54 PM CST	Flash Flood Warning	HGX	Brazos, Burleson, Grimes, Houston, Madison, Walker	4 hr
Nov 4, 2:00 AM CST	Flash Flood Warning	HGX	Brazos, Burleson, Grimes, Houston, Madison, Trinity and 1 more	6 hr

Nearby

Flash Flood Warnings in Texas, 2000 Every flash flood warning in 2000

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.