Alert archive / Texas / Tornado Warnings in 2003

Tornado Warning 33, NWS Houston/Galveston, TX

October 9, 2003Brazoria County, Galveston County, Harris County, Texas

NWS Houston/Galveston, TX issued this tornado warning at Oct 9, 2003, 11:46 AM CDT for Brazoria County, Galveston County, Harris County, Texas. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Oct 9, 2003, 11:46 AM CDT (16:46 UTC)
Expired
Oct 9, 2003, 12:30 PM CDT
In force
44 min
Issued by
NWS Houston/Galveston, TX
Area
Counties, with a storm outline in the text

Counties Brazoria County, TX, Galveston County, TX, Harris County, TX

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 4.8 hours before the alert went out and 209 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 2003-10-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 49 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, Lake Charles Mun, LA at 12:00Z on 2003-10-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 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
49 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
805 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS54 KHGX 091646
TORHOU
TXC039-167-201-091730-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1146 AM CDT THU OCT 9 2003

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN HARRIS COUNTY IN SOUTHEAST TEXAS
  NORTHERN BRAZORIA COUNTY IN SOUTHEAST TEXAS
  EXTREME NORTHWESTERN GALVESTON COUNTY IN SOUTHEAST TEXAS

* UNTIL 1230 PM CDT

* AT 1141 AM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF
  PRODUCING A TORNADO 4 MILES WEST OF FRIENDSWOOD...MOVING NORTHEAST
  AT 20 MPH.

* LOCATIONS IN THE PATH OF THE TORNADO INCLUDE...
  PEARLAND...ALVIN...BROOKSIDE VILLAGE
  FRIENDSWOOD
  HOBBY AIRPORT
  WEBSTER
  ELLINGTON FIELD...NASSAU BAY...SOUTH HOUSTON
  PASADENA

MOVE TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR. ABANDON YOUR CAR
OR MOBILE HOME FOR A STRONG SHELTER NOW

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

LAT...LON 2952 9539 2940 9525 2954 9504 2972 9524

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 9, 1:21 PM CDTTornado WarningHGXChambers, Liberty39 min
Oct 9, 4:42 PM CDTTornado WarningHGXGalveston, Harris33 min
Oct 9, 5:21 PM CDTTornado WarningHGXBrazoria, Fort Bend39 min
Oct 9, 5:24 PM CDTTornado WarningHGXWharton36 min
Oct 9, 5:41 PM CDTTornado WarningHGXHarris49 min
Oct 9, 5:59 PM CDTTornado WarningHGXBrazoria46 min
Oct 9, 6:25 PM CDTSpecial Marine WarningHGX2 hr
Oct 9, 6:41 PM CDTTornado WarningHGXBrazoria, Galveston49 min

Nearby

Tornado Warnings in Texas, 2003Every tornado warning in 2003Tornadoes in 2003

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.