Alert archive / Texas / Tornado Warnings in 2002

Tornado Warning 25, NWS Houston/Galveston, TX

October 28, 2002Liberty County, Texas

NWS Houston/Galveston, TX issued this tornado warning at Oct 28, 2002, 9:30 PM CST for Liberty County, Texas. It was in force for 60 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Oct 28, 2002, 9:30 PM CST (03:30 UTC)
Expired: Oct 28, 2002, 10:30 PM CST
In force: 60 min
Issued by: NWS Houston/Galveston, TX
Area: Counties, with a storm outline in the text

County Liberty County, TX

The radar

The Houston radar (KHGX), 77 km from the middle of the area, began a volume at 03:29 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.

What was reported inside it

Time	Report	Where	Remark
Oct 28, 9:30 PM CST	Tornado F1	Dayton, TX	Four mobile homes sustained damage with one receiving major damage.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 28, 8:15 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 3.5 hours before the alert went out and 161 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: 51 J/kg
Mixed-layer CIN: -148 J/kg
Mixed-layer LCL: 1502 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 106 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

709 
WFUS54 KHGX 290330
TORHOU
TXC291-290430-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
928 PM CST MON OCT 28 2002

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

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

* UNTIL 1030 PM CST

* AT 924 PM CST...DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF
  PRODUCING A TORNADO 4 MILES SOUTHWEST OF DAYTON...MOVING NORTHEAST
  AT 20 MPH.

* LOCATIONS IN THE PATH OF THE TORNADO INCLUDE...
  DAYTON
  KENEFICK...LIBERTY
  DAYTON LAKES...AMES
  HARDIN
  MOSS HILL...DAISETTA...DEVERS


THIS TORNADO COULD BE WRAPPED IN TORRENTIAL RAINS AND WOULD BE VERY 
DIFFICULT TO SEE AT NIGHT. DO NOT WAIT UNTIL YOU SEE OR 
HEAR THE TORNADO - TAKE COVER NOW

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 3018 9510 2990 9497 2997 9442 3046 9476

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 28, 7:25 PM CST	Flash Flood Warning	HGX	Fort Bend, Harris	3 hr
Oct 28, 8:04 PM CST	Tornado Warning	HGX	Harris	41 min
Oct 28, 9:05 PM CST	Flash Flood Warning	HGX	Waller	3 hr
Oct 28, 9:38 PM CST	Tornado Warning	HGX	Harris	22 min
Oct 28, 10:03 PM CST	Flash Flood Warning	HGX	Fort Bend, Harris	3 hr
Oct 28, 10:24 PM CST	Flash Flood Warning	HGX	Liberty	4 hr
Oct 28, 10:26 PM CST	Tornado Warning	HGX	Liberty	49 min
Oct 29, 12:13 AM CST	Special Marine Warning	HGX		2 hr
Oct 29, 12:57 AM CST	Flash Flood Warning	HGX	Harris	3 hr
Oct 29, 1:55 AM CST	Special Marine Warning	HGX		2 hr

Nearby

Tornado Warnings in Texas, 2002 Every tornado warning in 2002 Tornadoes in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.