Alert archive / Texas / Tornado Warnings in 2002

Tornado Warning 7, NWS Houston/Galveston, TX

March 30, 2002Chambers County, Galveston County, Harris County, Texas

NWS Houston/Galveston, TX issued this tornado warning at Mar 30, 2002, 7:47 PM CST for Chambers County, Galveston County, Harris County, Texas. It was in force for 43 min. 6 reports 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
Mar 30, 2002, 7:47 PM CST (01:47 UTC)
Expired
Mar 30, 2002, 8:30 PM CST
In force
43 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

Counties Chambers County, TX, Galveston County, TX, Harris County, TX

What was reported inside it

TimeReportWhereRemark
Mar 30, 7:47 PM CSTHail 1.75Friendswood, TX
Mar 30, 7:49 PM CSTHail 1Friendswood, TX
Mar 30, 7:55 PM CSTHail 1(Efd)Ellington Afb, TXAmateur radio operator reported one inch Hail at Scarsdale and Beamer.
Mar 30, 8:00 PM CSTHail 0.75Nassau Bay, TXHail of 3/4 inch was reported in EL Lago on the north side of Clear Lake.
Mar 30, 8:00 PM CSTThunderstorm Wind 60 EGLeague City, TXA large tree was blown down by strong winds at East Walker and Eden.
Mar 30, 8:09 PM CSTTornado F3La Porte, TXThis Tornado began its path in the Shoreacres subdivision, 3 miles south of La Porte, with a home on Greenleaf Road receiving structural and roof damage (F1), then moved northeast and partially demolished a Super Mart on Broadway (F3), then ripped through an

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.

IssuedProductOfficeLasted
Mar 30, 3:45 PM CSTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 1.8 hours before the alert went out and 178 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 00:00Z on 2002-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2027 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 00:00Z on 2002-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 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
2027 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
712 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
121 m²/s²
Significant tornado parameter
1.5
Supercell composite
6.2

Open this sounding in Storm Lab

The text

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

002 
WFUS54 KHGX 310147
TORHOU
TXC071-167-201-310230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
745 PM CST SAT MAR 30 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

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

* UNTIL 830 PM CST

* AT 739 PM CST...DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE     
   OF PRODUCING A TORNADO 2 MILES NORTHWEST OF FRIENDSWOOD...MOVING  
   NORTHEAST AT 45 MPH.

* LOCATIONS IN THE PATH OF THE TORNADO INCLUDE...
  FRIENDSWOOD...HOBBY AIRPORT
  ELLINGTON FIELD...WEBSTER...SOUTH HOUSTON
  JOHNSON SPACE CENTER...NASSAU BAY...PASADENA...DEER PARK
  EL LAGO

WEATHER SERVICE METEOROLIGST REPORTED DIME SIZED HAIL IN PEARLAND.


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.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 30, 6:04 PM CSTTornado WarningHGXMatagorda, Wharton41 min
Mar 30, 6:22 PM CSTSevere Thunderstorm WarningHGXPolk, Trinity38 min
Mar 30, 6:31 PM CSTSevere Thunderstorm WarningHGXHarris59 min
Mar 30, 6:33 PM CSTTornado WarningHGXPolk27 min
Mar 30, 6:48 PM CSTTornado WarningHGXBrazoria, Fort Bend, Matagorda57 min
Mar 30, 7:01 PM CSTTornado WarningHGXPolk, Trinity29 min
Mar 30, 7:23 PM CSTSevere Thunderstorm WarningHGXHarris, Liberty37 min
Mar 30, 7:39 PM CSTSevere Thunderstorm WarningHGXPolk, San Jacinto36 min
Mar 30, 7:54 PM CSTSpecial Marine WarningHGX66 min
Mar 30, 8:01 PM CSTTornado WarningHGXLiberty29 min
Mar 30, 8:32 PM CSTSevere Thunderstorm WarningHGXChambers, Liberty43 min
Mar 30, 9:08 PM CSTSpecial Marine WarningHGX67 min
Mar 30, 10:17 PM CSTSpecial Marine WarningHGX58 min
Mar 31, 3:02 AM CSTSevere Thunderstorm WarningHGXTrinity13 min

Nearby

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