Alert archive / Texas / Tornado Warnings in 1998

Tornado Warning 38, NWS Houston/Galveston, TX

September 10, 1998Brazoria County, Galveston County, Texas

NWS Houston/Galveston, TX issued this tornado warning at Sep 10, 1998, 8:02 PM CDT for Brazoria County, Galveston County, Texas. It was in force for 63 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
Sep 10, 1998, 8:02 PM CDT (01:02 UTC)
Expired
Sep 10, 1998, 9:05 PM CDT
In force
63 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

Counties Brazoria County, TX, Galveston County, TX

The radar

The Houston radar (KHGX), 27 km from the middle of the area, began a volume at 00:58 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
Sep 10, 8:09 PM CDTTornado F0Galveston, TXBrief tornado touchdown on the west end of Galveston Island. House sustained structural 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 nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 1.0 hours before the alert went out and 210 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 1998-09-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 26 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 1998-09-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 273 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
26 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
452 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
273 m²/s²
0-3 km storm-relative helicity
445 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 
TTAA00 KHOU 110102 RRA
TORHOU
TXC039-167-110205-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
802 PM CDT THU SEP 10 1998

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN BRAZORIA COUNTY IN SOUTHEASTERN TEXAS
  GALVESTON COUNTY IN SOUTHEASTERN TEXAS

* UNTIL 905 PM CDT

* AT 800 PM CDT... WEATHER RADAR INDICATED A TORNADO 8 MILES SOUTH
  SOUTHWEST OF JAMAICA BEACH... MOVING NORTHWEST AT 35 MPH.

* THE TORNADO IS EXPECTED TO PASS NEAR...
  THE WEST END OF GALVESTON ISLAND
  AND THE MUSTANG BAYOU AREA

IF YOU ARE IN THESE AREAS... SEEK SAFETY IN A SMALL INTERIOR ROOM
STAY AWAY FROM WINDOWS.

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this tornado warning went out at Sep 10, 2:45 PM CDT, 5 hours 17 minutes earlier.

Area forecast discussion, Sep 10, 2:45 PM CDT, 5 hours 17 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
245 PM CDT THU SEP 10 1998

DUE TO THE UNCERTATINTY WITH ALL THE GUIDANCE WITH TS FRANCES...WILL
OPT FOR ONLY A FEW CHANGES FROM THE CURRENT TREND OF HIGH POPS/WINDS.
SATELLITE IMAGERY SO FAR THIS AFTN INDICATING THAT FRANCES IS START-
ING TO LOOK A BIT MORE ORGANIZED.  HOWEVER...THE STORM DOES NOT SEEM
TO WANT TO GO ANYWHERE FAST AND SO WE SHOULD CONTINUE WITH A PERSIS-
TENT NE/ELY FLOW THROUGH AT LEAST THE NEXT 24-36H. THIS WILL IN TURN
CONTINUE TO BRING MOISTURE/PCPN ASHORE OF SE TX.  THUS WOULD LIKE TO
RE-ISSUE AND EXPAND THE FFA TO INCLUDE ALL OF SE TX FOR TONIGHT THRU
FRIDAY.  GIVEN THE EXTENSIVE (AND CONTINUING) CLOUD COVER WOULD ALSO
LIKE TO GO WITH SLIGHTLY LOWER DAYTIME TEMPS.  COASTAL FLOOD PROBLEM
DOES NOT APPEAR TO BE GOING AWAY QUICKLY EITHER.  WOULD LIKE TO DROP
WIND ADVZY THIS PCKG.

PLEASE NOTE - SOME CHANGES MAY BE IN STORE DEPENDING UPON CONFERENCE
CALL RESULTS!

41

PRELIMS...
       SKY       TEMPS    POPS          WINDS
CLL E/E E/E  76/85 76/90  *865  15G20/15-20/15-20/15-20  FFA
NE  E/E E/E  76/85 76/90  *866  15G20/15-20/15-20/15-20  FFA
IAH C/C C/C  76/84 76/88  **76  15G25/15G25/15G25/15-20  FFA
GLS C/C C/C  78/83 78/86  **87  25G35/20G30/20G30/20G25  FFA

In the hours before

Special weather statement, Sep 10, 5:25 PM CDT, 2 hours 37 minutes before
TXZ213-214-235>238-102330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
525 PM CDT THU SEP 10 1998

...VERY HIGH TIDES EXPECTED THIS EVENING...

RECENT TRENDS AT TIDE GAUGES ALONG THE UPPER TEXAS COAST INDICATE
THAT GALVESTON BEACH FRONT TIDES WILL REACH BETWEEN 5 TO 6 FEET
ABOVE THE PREDICTED LEVEL THIS EVENING.  HIGH TIDE AT PLEASURE
PIER WILL OCCUR AT 829 PM.  WATER LEVELS ARE EXPECTED TO REACH
BETWEEN 7 AND 8 FEET AT THIS HIGH TIDE. IN ADDITION TO THE HIGH
TIDE...EXPECT VERY STRONG WIND GUSTS AS SQUALLS CONTINUE TO PUSH
ONSHORE. AT 5 PM...A 55 MPH WIND GUST WAS REPORTED AT HIGH ISLAND.

SIMILAR OR SLIGHTLY HIGHER LEVELS ARE EXPECTED DURING THE
FOLLOWING HIGH TIDE AT 637 AM...EARLY FRIDAY MORNING.
Special weather statement, Sep 10, 5:25 PM CDT, 2 hours 37 minutes before
TXZ213-214-235>238-102330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
525 PM CDT THU SEP 10 1998

...VERY HIGH TIDES EXPECTED THIS EVENING...

RECENT TRENDS AT TIDE GAUGES ALONG THE UPPER TEXAS COAST INDICATE
THAT GALVESTON BEACH FRONT TIDES WILL REACH BETWEEN 5 TO 6 FEET
ABOVE THE PREDICTED LEVEL THIS EVENING.  HIGH TIDE AT PLEASURE
PIER WILL OCCUR AT 829 PM.  WATER LEVELS ARE EXPECTED TO REACH
BETWEEN 7 AND 8 FEET AT THIS HIGH TIDE. IN ADDITION TO THE HIGH
TIDE...EXPECT VERY STRONG WIND GUSTS AS SQUALLS CONTINUE TO PUSH
ONSHORE. AT 5 PM...A 55 MPH WIND GUST WAS REPORTED AT HIGH ISLAND.

SIMILAR OR SLIGHTLY HIGHER LEVELS ARE EXPECTED DURING THE
FOLLOWING HIGH TIDE AT 637 AM...EARLY FRIDAY MORNING.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 10, 7:13 PM CDTFlash Flood WarningHGXGalveston4 hr
Sep 10, 10:09 PM CDTFlash Flood WarningHGXBrazoria, Matagorda, Wharton4 hr
Sep 10, 10:09 PM CDTFlash Flood WarningHGXFort Bend4 hr
Sep 11, 12:09 AM CDTFlash Flood WarningHGXGalveston4 hr
Sep 11, 1:29 AM CDTTornado WarningHGXGalveston, Harris66 min
Sep 11, 2:03 AM CDTFlash Flood WarningHGXBrazoria, Fort Bend, Harris4 hr
Sep 11, 3:31 AM CDTTornado WarningHGXGalveston64 min
Sep 11, 4:01 AM CDTFlash Flood WarningHGXGalveston4 hr
Sep 11, 4:31 AM CDTTornado WarningHGXHarris64 min
Sep 11, 4:39 AM CDTFlash Flood WarningHGXJackson4 hr
Sep 11, 5:32 AM CDTFlash Flood WarningHGXGrimes, Montgomery, Waller4 hr
Sep 11, 5:54 AM CDTFlash Flood WarningHGXHarris4 hr
Sep 11, 6:06 AM CDTTornado WarningHGXFort Bend64 min
Sep 11, 6:18 AM CDTTornado WarningHGXHarris62 min
Sep 11, 7:49 AM CDTFlash Flood WarningHGXBrazoria, Galveston4 hr
Sep 11, 7:49 AM CDTFlash Flood WarningHGXFort Bend4 hr
Sep 11, 8:58 AM CDTFlash Flood WarningHGXHarris6 hr

Nearby

Tornado Warnings in Texas, 1998Every tornado warning in 1998Tornadoes in 1998

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.