Alert archive / Texas / Tornado Warnings in 2000

Tornado Warning 3, NWS Houston/Galveston, TX

February 23, 2000Brazoria County, Texas

NWS Houston/Galveston, TX issued this tornado warning at Feb 23, 2000, 7:24 AM CST for Brazoria County, Texas. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 23, 2000, 7:24 AM CST (13:24 UTC)
Expired
Feb 23, 2000, 8:00 AM CST
In force
36 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Brazoria County, TX

The radar

The Houston radar (KHGX), 48 km from the middle of the area, began a volume at 13:24 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 12:00Z, 1.4 hours before the alert went out and 240 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 2000-02-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 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 2000-02-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 246 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
4 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
947 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
246 m²/s²
0-3 km storm-relative helicity
270 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 
WFUS54 KHGX 231325
TORHOU
TXC039-231400-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
724 AM CST WED FEB 23 2000

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

* TORNADO WARNING FOR...
  BRAZORIA COUNTY IN SOUTHEAST TEXAS

* UNTIL 800 AM CST

* AT 724 AM CST...DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF
  PRODUCING A TORNADO 6 MILES SOUTHWEST OF SWEENY...MOVING EAST AT 25
  MPH. 

* LOCATIONS IN THE PATH OF THE TORNADO INCLUDE...
  SOUTH SWEENY
  SOUTH BRAZORIA
  JONES CREEK...LAKE JACKSON

THIS IS A DANGEROUS SITUATION! QUICK ACTION MAY SAVE YOUR LIFE. MOVE
TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR. ABANDON YOUR CAR OR
MOBILE HOME NOW FOR A STRONG SHELTER. IF SHELTER IS NOT AVAILABLE...
MOVE TO A DITCH OR CULVERT AND COVER YOUR HEAD.

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

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 22, 11:21 PM CSTSevere Thunderstorm WarningHGXBurleson39 min
Feb 23, 6:44 AM CSTSevere Thunderstorm WarningHGXMatagorda46 min
Feb 23, 6:59 AM CSTTornado WarningHGXMatagorda31 min
Feb 23, 7:54 AM CSTSevere Thunderstorm WarningHGXBrazoria51 min

Nearby

Tornado Warnings in Texas, 2000Every tornado warning in 2000Tornadoes 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; radar from the NEXRAD Level II archive.