Tornado Warning 57, NWS Houston/Galveston, TX

Issued

Oct 18, 1998, 4:10 AM CDT (09:10 UTC)

Expired

Oct 18, 1998, 5:05 AM CDT

In force

55 min

Issued by

NWS Houston/Galveston, TX

Area

Whole counties

County Harris County, TX

The Houston radar (KHGX), 52 km from the middle of the area, began a volume at 09:12 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.

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.

000 
TTAA00 KHOU 180910 RRA
TORHOU
TXC201-181005-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
410 AM CDT SUN OCT 18 1998

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A

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

* UNTIL 505 AM CDT

* AT 402 AM CDT... WEATHER RADAR INDICATED A TORNADO JUST SOUTH OF
CYPRESS MOVING NORTHEAST AT 20 MPH.

THE TORNADO WILL APPROACH THE CYPRESS AREA AROUND 410 AM THEN ON A
NORTHEAST PATH TOWARD TOMBALL.

THIS IS A DANGEROUS STORM SITUATION!  ACT QUICKLY!  IF YOU ARE IN
THE PATH OF THIS TORNADO MOVE TO A PLACE OF SAFETY IN 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.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this tornado warning went out at Oct 18, 2:50 AM CDT, 1 hour 20 minutes earlier.

SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
250 AM CDT SUN OCT 18 1998

LOOKS LIKE THE SOGGY FORECAST IS HERE TO STAY.  THE HEAVY/PERSISTENT
RAINS OVER SWRN PORTIONS OF THE FA HAVE PRODUCED NUMEROUS REPORTS OF
FLOODING LAST EVENING (AND INTO THIS MORNING).  ADDITIONALLY...THERE
WERE ALSO SOME REPORTS OF FUNNEL CLOUDS/TORNADOES EARLIER TODAY (AND
EVEN TONIGHT).  MEANWHILE...THE LARGE AREA OF MAINLY SHRA CONTINUING
TO SLOWLY MOVE (MORE ELY THAN SE) ACROSS THE AREA.  HOWEVER...ALL OF
THIS SHOULD SHIFT A LITTLE MORE SE TODAY AS THE COLD FRONT CURRENTLY
OVER N TX EDGES A BIT FURTHER SSE.  WITH GOOD UPPER DIVERGENCE PROG-
GED ALONG WITH A DECENT SURGE OF PW (AOA 2") COMBINED WITH PROXIMITY
OF THE FRONT AND AVAILABLE DEEP TROPICAL MOISTURE...HEAVY RAINS WILL
LIKELY CONTINUE THIS FCST PD.  WOULD ALSO LIKE TO ADD THE MENTION OF
"SOME POSSIBLY SEVERE" IN SOME OF THE ZONES BASED MAINLY ON WHAT HAS
ALREADY TRANSPIRED ALONG WITH THE POSSIBILITY OF SOME HEATING OVER S
PARTS OF THE CWA/PROGGED VERTICAL SHEAR/INFLOW.  LOOKING AHEAD...THE
FRONT WILL LIKELY PULL UP STATIONARY OVER AT LEAST THE N HALF OF THE
AREA AS UPPER SUPPORT FADES, AND UPPER LOW REMAINS ANCHORED OVER THE
CA BAJA.  TIMING OF S/Ws FROM THE LOW WILL BE THE TRICKY PART OF THE
FCST, BUT WILL GO AHEAD AND OPT FOR HIGH POPS/ABUNDANT CLOUDS ACROSS
THE BOARD, GIVEN ALL THE OTHER INGREDIENTS IN PLACE.  WILL ALSO KEEP
FFA UP FOR NOW.  WILL GO SLIGHTLY ABOVE MOS TEMPS AS CLOUDS STAY IN.
41

PRELIMS...
CLL  C/C C/C  78/64 76/61 +776  HVY RAINS
IAH  C/C C/C  81/67 78/64 +776  HVY RAINS/POSSIBLY SVR
GLS  E/C C/C  84/76 80/72 8776  HVY RAINS/POSSIBLY SVR

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

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.