Flash Flood Warning 84, NWS Houston/Galveston, TX

Issued

Oct 18, 1998, 2:55 AM CDT (07:55 UTC)

Expired

Oct 18, 1998, 8:00 AM CDT

In force

5 hr

Issued by

NWS Houston/Galveston, TX

Area

Whole counties

Counties Austin County, TX, Colorado County, TX, Wharton County, TX

The Houston radar (KHGX), 123 km from the middle of the area, began a volume at 07:57 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.

000 
TTAA00 KHOU 180810
FFWHOU
TXC015-089-473-481-181300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...RETRANSMITTED
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
255 AM CDT SUN OCT 18 1998

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL AND SOUTHERN AUSTIN COUNTY IN SOUTH CENTRAL TEXAS
  EASTERN COLORADO COUNTY IN SOUTH CENTRAL TEXAS
  SOUTHERN WALLER COUNTY IN SOUTHEASTERN TEXAS
  NORTHWESTERN WHARTON COUNTY IN SOUTH CENTRAL TEXAS

* UNTIL 800 AM CDT

* AT 300 AM CDT...RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN
  ALONG LINE FROM EAGLE LAKE TO EAST BERNARD TO SEALY TO BROOKSHIRE.
  THE STORMS ARE MOVING NORTHEAST AT 20 MPH OVER AREAS THAT HAVE
  ALREADY RECEIVED HEAVY RAIN.

* RADAR ESTIMATES 5 TO 9 INCHES HAS FALLEN ACROSS THE AREA SINCE
  800 PM...WITH 10 TO 13 INCHES OF RAIN IN EXTREME EASTERN COLORADO
  COUNTY AND NORTHWESTERN WHARTON COUNTY. AREA SHERIFF'S OFFICES
  REPORT MAJOR FLOODING. THE HARDEST HIT AREAS ARE EAGLE LAKE...
  GARWOOD...NADA...EGYPT...SEALY...AND WALLIS. THE AUSTIN COUNTY
  SHERIFF'S OFFICE REPORTED 15-20 RESCUES THIS MORNING...MAINLY FROM
  STREET FLOODING. THEY WERE IN THE PROCESS OF CLOSING I-10
  AT MILE MARKER 725. RESIDENTS NOT ALREADY EXPERIENCING FLOODING
  SHOULD TAKE PRECAUTIONS NOW IN CASE FLOODING DEVELOPS.

IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE TO ESCAPE FLOOD
WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS
RISING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLASH FLOODING.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this flash flood warning went out at Oct 18, 2:50 AM CDT, 5 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

Flash Flood Warnings in Texas, 1998Every flash flood warning in 1998

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.