Alert archive / Texas / Tornado Warnings in 2002

Tornado Warning 24, NWS Houston/Galveston, TX

October 28, 2002Harris County, Texas

NWS Houston/Galveston, TX issued this tornado warning at Oct 28, 2002, 8:04 PM CST for Harris County, Texas. It was in force for 41 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 28, 2002, 8:04 PM CST (02:04 UTC)
Expired: Oct 28, 2002, 8:45 PM CST
In force: 41 min
Issued by: NWS Houston/Galveston, TX
Area: Counties, with a storm outline in the text

County Harris County, TX

The radar

The Houston radar (KHGX), 52 km from the middle of the area, began a volume at 02:04 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 00:00Z, 2.1 hours before the alert went out and 188 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.

736 
WFUS54 KHGX 290204
TORHOU
TXC201-290245-

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

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

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

* UNTIL 845 PM CST

* AT 759 PM CST...DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE
  OF PRODUCING A TORNADO OVER BELLAIRE...MOVING NORTHEAST AT 25 MPH.

* LOCATIONS IN THE PATH OF THE TORNADO INCLUDE...
  HOUSTON...THE MEDICAL CENTER
  JACINTO CITY
  CLOVERLEAF
  SHELDON

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 3011 9507 3002 9507 2999 9501 2992 9501
          2988 9499 2966 9539 2979 9550

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, 9:05 PM CST	Flash Flood Warning	HGX	Waller	3 hr
Oct 28, 9:30 PM CST	Tornado Warning	HGX	Liberty	60 min
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.