Alert archive / Texas / Tornado Warnings in 1993

Tornado Warning 21, NWS Houston/Galveston, TX

November 16, 1993Liberty County, Texas

NWS Houston/Galveston, TX issued this tornado warning at Nov 16, 1993, 10:47 AM CST for Liberty County, Texas. It was in force for 43 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Nov 16, 1993, 10:47 AM CST (16:47 UTC)
Expired
Nov 16, 1993, 11:30 AM CST
In force
43 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Liberty County, TX

The radar

The Houston radar (KHGX), 80 km from the middle of the area, began a volume at 16:50 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

TimeReportWhereRemark
Nov 16, 11:30 AM CSTTornado F0Ssw Romayer, TXThe Liberty County Emergency Management reported numerous tornado sightings from east of Cleveland to Rye. Aerial survey by National Weather Services Meteorologist revealed trees down five miles SSW of Romayor.

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 4.8 hours before the alert went out and 155 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 1993-11-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1993-11-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 448 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
495 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
448 m²/s²
0-3 km storm-relative helicity
537 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 
TTAA00 KHOU 161648
TORHOU
TXC291-161730-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON TX
1047 AM CST TUE NOV 16 1993
 
THE NATIONAL WEATHER SERVICE IN HOUSTON HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1130 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN SOUTHEAST TEXAS
 
   ...LIBERTY COUNTY
 
AT 1050 AM CST...A TORNADO WAS LOCATED 10 MILES WEST OF DAYTON MOVING
TO THE NORTHEAST AT 25 TO 30 MPH. PERSONS LIVING IN LIBERTY COUNTY
SHOULD SEEK SHELTER IMMEDIATELY!  THIS THUNDERSTORM COMPLEX HAS
ALREADY PRODUCED DAMAGE ACROSS HARRIS COUNTY.
 
THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE
IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE.  OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR POSSIBLE.  AVOID WINDOWS.  ABANDON CARS AND MOBILE HOMES
FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.
 
 
 
&

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 16, 3:21 AM CSTSevere Thunderstorm WarningHGXHarris69 min
Nov 16, 6:46 AM CSTTornado WarningHGXBrazoria44 min
Nov 16, 6:51 AM CSTTornado WarningHGXFort Bend54 min
Nov 16, 7:19 AM CSTTornado WarningHGXHarris56 min
Nov 16, 9:07 AM CSTTornado WarningHGXLiberty68 min
Nov 16, 9:43 AM CSTTornado WarningHGXHarris47 min
Nov 16, 10:26 AM CSTTornado WarningHGXHarris25 min
Nov 16, 11:25 AM CSTTornado WarningHGXLiberty, Polk50 min
Nov 16, 12:01 PM CSTTornado WarningHGXHarris36 min
Nov 16, 12:18 PM CSTTornado WarningHGXChambers42 min

Nearby

Tornado Warnings in Texas, 1993Every tornado warning in 1993Tornadoes in 1993

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.