Alert archive / Texas / Flash Flood Warnings in 2001

Flash Flood Warning 29, NWS Houston/Galveston, TX

June 8, 2001Brazoria County, Texas

NWS Houston/Galveston, TX issued this flash flood warning at Jun 8, 2001, 7:15 AM CDT for Brazoria 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 8, 2001, 7:15 AM CDT (12:15 UTC)
Expired
Jun 8, 2001, 10:15 AM CDT
In force
3 hr
Issued by
NWS Houston/Galveston, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Brazoria County, TX

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 0.3 hours before the alert went out and 241 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 12:00Z on 2001-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2670 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 12:00Z on 2001-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 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
2670 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
445 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
62 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 081222
FFWHGX
TXC039-081515-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
715 AM CDT FRI JUN 8 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN BRAZORIA COUNTY IN SOUTHEAST TEXAS

* UNTIL 1015 AM CDT

* AT 715 AM CDT...DOPPLER RADAR INDICATED VERY HEAVY RAINFALL
GENERALLY CONFINED TO THE COASTAL SECTIONS OF BRAZORIA COUNTY. A
SWATH OF 4 TO 7 INCHES OF RAIN HAS FALLEN FROM JONES CREEK TO OYSTER
CREEK BETWEEN 3 AND 7 AM. SEVERAL UNDERPASSES IN THE FREEPORT AREA
ARE IMPASSABLE. ANOTHER 1 TO 3 INCHES OF RAIN WILL BE POSSIBLE ALONG
THE IMMEDIATE COAST THIS MORNING.

* FLOODING IS EXPECTED IN OR NEAR...
  JONES CREEK...FREEPORT...OYSTER CREEK

DO NOT CROSS ANY LOCATION WHERE WATER COVERS THE ROAD!

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

LAT...LON 2900 9545 2887 9531 2904 9514 2911 9533

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 Jun 8, 3:37 AM CDT, 3 hours 38 minutes earlier.

Area forecast discussion, Jun 8, 3:37 AM CDT, 3 hours 38 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
337 AM CDT FRI JUN 8 2001

LOW LEVEL CIRCULATION OF ALLISON'S REMNANTS AROUND MADISONVILLE/KURTEN
AREA AT 2 AM...DRIFTING WSW. PROJECTIONS OF THE MOTION ARE TO TAKE IT
SSW TOWARD LA GRANGE-BELLVILLE AREA AROUND NOON AND PERHAPS AS FAR
SOUTHWEST AT THE VICTORIA AREA BY SATURDAY MORNING...SUSPECT THE
MODELS MAY BE MOVING IT TOO QUICK. PW CURRENTLY RUNNING 1.90-2.0
INCHES VIA GPS AT GLS. SFC DWPTS IN THE LOWER 70S INLAND AND AROUND 77
ON THE COAST. FEEDER BAND DEVELOPING FROM NEAR SARGENT TO FREEPORT TO
TEXAS CITY TO ANAHUAC AND THEN INTO THE MASSIVE BAND OVER
TYLER/HARDIN/JASPER...RADAR ESTIMATES OF 2.2-3.5"/HR. WE EVEN HAD ONE
STORM OVER CHAMBERS COUNTY POP A 60 VIL WITH A VERY PRONOUNCED WER.
COASTAL COUNTY STORMS MAY BE ABLE TO GO SEVERE THIS MORNING...PULSE
TYPE...MICROBURSTS AND PERHAPS A TORNADO THREAT.

WIDESPREAD RAINS CLOSER TO THE CORE SHOULD BE A REPEAT TODAY AND AGAIN
SATURDAY. THIS TRACK WILL BRING FA INTO THE DEEP MOIST AXIS ON THE
EAST SIDE OF THE SYSTEM. TAP OUT OF THE CENTRAL GULF WILL BE
TRAVERSING WEST AND SHOULD END UP POINTED RIGHT AT SETX. PRECIP
EFFICIENCY WILL BE EXTREME TONIGHT THROUGH SATURDAY NIGHT OVER THE
CENTRAL AND COASTAL FA. WILL CONTINUE THE FFA THROUGH TONIGHT AND AM
VERY CONFIDENT THAT IT WILL BE EXTENDED THROUGH SATURDAY NIGHT.
EXTREME RAINFALLS WILL NOT BE OUT OF THE QUESTION AND LOOK OUT
SATURDAY! JUST TO REITERATE THE REMNANTS OF TROPICAL STORMS HAVE
PRODUCED SOME VERY IMPRESSIVE/RECORD SETTING TOTALS! AVN HINTS THAT
THE 1000-700MB CIRCULATION COULD GET BACK OUT OVER THE WATER NEAR
MATAGORDA/MIDDLE TEXAS COAST SATURDAY NIGHT?...I SURE HOPE NOT!

MARINE...NO FLAGS AND 4 TO 5 FOOT SWELLS. EAST WINDS DEVELOPING
MAY LEAD TO SOME MARGINAL TIDAL RISES.

SPS ISSUED EARLIER WITH A RAINFALL SUMMARY AT THE MAJOR AIRPORT
SITES SINCE ALLISONS INCEPTION.

45/37/40/48/T

.KHGX...FLASH FLOOD WATCH ALL OF SOUTHEAST TEXAS THROUGH
        TONIGHT.

PRELIMS...
CLL TT 082/072 082/071 085 ++8
IAH TT 082/073 082/072 084 9+9
GLS TT 084/075 084/075 084 ++9

In the hours before

Special weather statement, Jun 8, 3:01 AM CDT, 4 hours 14 minutes before
TXZ163-164-176>179-195>200-210>214-226-227-235>238-081100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
301 AM CDT FRI JUN 8 2001

AS THE REMNANTS OF TROPICAL STORM ALLISON CONTINUE TO PLAGUE
SOUTHEAST TEXAS...SEVERAL AREAS HAVE RECEIVED MORE THAN ENOUGH
RAINFALL. HERE ARE THREE DAY (1200 AM CST TUESDAY JUNE 5 TO 1200 AM
CST FRIDAY JUNE 8) RAINFALL TOTALS FROM AIRPORTS AROUND SOUTHEAST
TEXAS:

     HUNTSVILLE............9.35 INCHES
     SUGARLAND.............9.13 INCHES
     PEARLAND..............8.28 INCHES
     LEAGUE CITY (NWS).....7.13 INCHES
     HOUSTON HOBBY.........7.10 INCHES
     HOUSTON BUSH..........5.43 INCHES
     CONROE................4.41 INCHES
     TOMBALL...............3.77 INCHES
     GALVESTON.............3.55 INCHES
     ANGLETON..............1.62 INCHES
     COLLEGE STATION.......1.50 INCHES
     PALACIOS..............0.94 INCHES

A FLASH FLOOD WATCH REMAINS IN EFFECT FOR ALL OF SOUTHEAST TEXAS
THROUGH TONIGHT AND WILL LIKELY BE EXTENDED THROUGH SATURDAY...AS
THE REMNANTS OF ALLISON WILL LINGER IN THE AREA FOR A FEW MORE DAYS.
WE WILL ISSUE UPDATED RAINFALL TOTALS LATER THIS AFTERNOON OR EVENING.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 8:02 PM CDTFlash Flood WarningHGXLiberty3 hr
Jun 7, 8:45 PM CDTFlash Flood WarningHGXHouston3 hr
Jun 7, 10:44 PM CDTFlash Flood WarningHGXWalker3 hr
Jun 7, 11:21 PM CDTFlash Flood WarningHGXHouston3 hr
Jun 7, 11:48 PM CDTFlash Flood WarningHGXLiberty3 hr
Jun 8, 1:37 AM CDTSevere Thunderstorm WarningHGXChambers38 min
Jun 8, 1:49 AM CDTFlash Flood WarningHGXLiberty4 hr
Jun 8, 2:50 AM CDTFlash Flood WarningHGXHouston, Trinity, Walker6 hr
Jun 8, 3:57 AM CDTSevere Thunderstorm WarningHGXGalveston, Harris63 min
Jun 8, 4:25 AM CDTFlash Flood WarningHGXBrazoria, Chambers, Galveston, Liberty3 hr
Jun 8, 6:41 AM CDTFlash Flood WarningHGXPolk2 hr
Jun 8, 7:23 AM CDTFlash Flood WarningHGXLiberty3 hr
Jun 8, 3:48 PM CDTFlash Flood WarningHGXMontgomery, Walker3 hr
Jun 8, 5:10 PM CDTFlash Flood WarningHGXHarris3 hr
Jun 8, 5:30 PM CDTFlash Flood WarningHGXBrazoria, Fort Bend3 hr
Jun 8, 5:46 PM CDTTornado WarningHGXMontgomery44 min
Jun 8, 6:40 PM CDTFlash Flood WarningHGXWashington3 hr
Jun 8, 6:52 PM CDTFlash Flood WarningHGXMontgomery, Walker3 hr

Nearby

Flash Flood Warnings in Texas, 2001Every flash flood warning in 2001

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.