Alert archive / Texas / Flash Flood Warnings in 2003
Flash Flood Warning 37, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at Nov 17, 2003, 6:19 PM CST for Liberty County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Nov 17, 2003, 6:19 PM CST (00:19 UTC)
- Expired
- Nov 17, 2003, 9:15 PM CST
- In force
- 3 hr
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
County Liberty County, TX
The radar
The Houston radar (KHGX), 86 km from the middle of the area, began a volume at 00:20 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 0.3 hours before the alert went out and 149 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.
- Mixed-layer CAPE
- 877 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 631 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 200 m²/s²
- 0-3 km storm-relative helicity
- 222 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 7.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KHGX 180022
FFWHOU
TXC291-180315-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
619 PM CST MON NOV 17 2003
THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
LIBERTY COUNTY IN SOUTHEAST TEXAS
* UNTIL 915 PM CST
* AT 615 PM CST...THE PUBLIC REPORTED WATER IN 6 TO 7 HOMES IN PLUM
GROVE. MORE HEAVY RAIN IS EXPECTED ACROSS PORTIONS OF LIBERTY
COUNTY THROUGH 915 PM. ADDITIONAL RAINFALL TOTALS OF 1 TO 3 INCHES
ARE POSSIBLE.
* FLOODING IS EXPECTED IN OR NEAR...
LIBERTY...DAYTON...DAISETTA...AMES
DO NOT CROSS ANY LOCATION WHERE WATER COVERS THE ROAD
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
A FLOOD WATCH REMAINS IN EFFECT FOR THE WARNED AREA.
PLEASE REPORT FLOODING TO THE COUNTY SHERIFF...LOCAL POLICE...OR
DEPARTMENT OF PUBLIC SAFETY. THEY WILL RELAY YOUR REPORT TO THE
NATIONAL WEATHER SERVICE.
LAT...LON 3045 9474 3012 9467 3010 9452 2995 9449
2994 9497 3033 9511
$$What forecasters said that day
The local office's own words before this flash flood 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 flash flood warning went out at Nov 17, 5:40 PM CST, 39 minutes earlier.
Area forecast discussion, Nov 17, 5:40 PM CST, 39 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 540 PM CST MON NOV 17 2003 QUICK UPDATE NEW TORNADO WATCH WILL TAKE EFFECT SHORTLY FOR BRAZORIA...GALVESTON... CHAMBERS...AND LIBERTY COUNTY TIL MIDNIGHT AND WILL REPLACE PREVIOUS TORNADO WATCH. STRONG TORNADIC THREAT SHIFTING EAST...VWP SHOWING 50+ KNOTS NOW AND THIS SHOULD TRANSLATE EAST. SEVERE THUNDERSTORM THREAT STILL REMAINS AND ESPECIALLY LATER TONIGHT WITH APPROACH OF SQUALL LINE. HEAVY RAINFALL THREAT REMAINS AS ATMOSPHERE LL INFLOW REMAINS IN PLACE AND PW OF 1.8 STILL STREAMING INLAND FROM COASTAL BEND TO 2 NEAR GALVESTON BAY. UPDATED CWF FOR SCA ALL WATERS. 45/40/43/35/39/31/34/46/D .HGX WATCHES/WARNINGS/ADVISORIES... TORNADO WATCH (#952) FOR BRAZORIA...GALVESTON...CHAMBERS...AND LIBERTY COUNTY TIL MIDNIGHT. FLOOD WATCH FOR ALL SE TX THROUGH TONIGHT. SMALL CRAFT ADVISORY BAYS AND 00-60 NM WATERS. PREV DISC... SEVERE THUNDERSTORM...TORNADO AND FLASH FLOOD THREAT CONTINUES ACROSS PORTIONS OF SOUTHEAST TEXAS. SEVERE PARAMETERS (TREMENDOUS DIVERGENCE ALOFT WITH A >140 KNOT UPPER LEVEL JET...STRONG LOW LEVEL INFLOW OF GULF MOISTURE...VERY HIGH PRECIPITABLE WATER VALUES PROGGED TO APPROACH 2.10 INCHES...AND AN APPROACHING UPPER LEVEL TROUGH) WILL ALL CONTRIBUTE TO A CONTINUING SEVERE THREAT. THE AREA MAY GET A BREAK LATER THIS AFTERNOON...BUT AS THE TROUGH APPROACHES TONIGHT MORE STORMS ARE ON THE WAY. A TORNADO WATCH IS IN EFFECT FOR SOUTHEAST TEXAS COUNTIES ALONG AND EAST OF A LINE FROM COLUMBUS TO CONROE TO LIVINGSTON. WILL REISSUE THE FLOOD WATCH AND WILL HAVE IT IN EFFECT UNTIL 6 AM TOMORROW MORNING. RAINFALL TOTALS WHERE THE HEAVIEST RAINS HAVE OCCURRED HAVE BEEN IN A 5 TO 7 INCH RANGE ALREADY. BEFORE THIS EVENT COMES TO AN END TOMORROW MORNING... EXPECT MUCH OF SOUTHEAST TEXAS TO SEE 3 TO 5 INCHES OF RAIN WITH ISOLATED 10 TO 15 INCH AMOUNTS VERY POSSIBLE. THINK THESE HEAVIER AMOUNTS WILL LIKELY BE FOUND AROUND AND EAST OF THE HIGHWAY 59 AND INTERSTATE 45 CORRIDOR...ROUGHLY AROUND AND EAST OF A LINE FROM EDNA TO PIERCE TO KATY TO CONROE TO CROCKETT. TROUGH MOVES EAST OF THE AREA TOMORROW AND SKIES WILL BECOME MOSTLY SUNNY. MORE NORMAL TEMPERATURES CAN BE EXPECTED FOR THE REMAINDER OF THE WEEK. A RETURN FLOW OFF THE GULF BEGINS AGAIN ON FRIDAY AND SOME SHOWERS MAY BE BACK INTO THE AREA NEXT WEEKEND. 41/35/43/31/34/46/30/DH PRELIMS... CLL UU 058/072 044/071 044 42+10 IAH BU 063/074 045/071 045 42+20 GLS BU 069/074 054/070 054 42+40
Hazardous weather outlook, Nov 17, 11:00 AM CST, 7 hours 19 minutes before
TXZ163-164-176>179-195>200-210>214-226-227-235>238-181300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1100 AM CST MON NOV 17 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST TEXAS. ...FLOOD WATCH THIS AFTERNOON AND TONIGHT... ...SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT... .DAY ONE...THIS AFTERNOON AND TONIGHT A STRONG STORM SYSTEM WILL APPROACH SOUTHEAST TODAY AND MOVE ACROSS THE AREA THIS AFTERNOON THROUGH EARLY TUESDAY MORNING. STRONG WINDS ARE PRESENT IN THE ATMOSPHERE OVER SOUTHEAST TEXAS AND WILL INCREASE THIS AFTERNOON. THESE STRONG WINDS ABOVE THE SURFACE AND INCREASING INSTABILITY IN THE ATMOSPHERE WILL CREATE AN ENVIRONMENT FAVORABLE FOR SEVERE THUNDERSTORM DEVELOPMENT. TONIGHT...A SQUALL LINE IS LIKELY TO MOVE ACROSS SOUTHEAST TEXAS AHEAD OF A COLD FRONT. THEREFORE...AN ISOLATED SEVERE THREAT DURING THE AFTERNOON HOURS MAY INCREASE TONIGHT AS ORGANIZED CONVECTION MOVES ACROSS TONIGHT. IT APPEARS THAT TORNADOES...HAIL...AND DAMAGING WINDS WILL ALL BE THREATS. IN ADDITION TO THE SEVERE THUNDERSTORM THREAT...VERY HEAVY RAINFALL IS POSSIBLE THROUGH TONIGHT. FAST MOVING STORMS WILL LIKELY MOVE REPEATEDLY OVER THE SAME LOCATIONS...CREATING THE HEAVY RAINFALL THREAT AND RESULTANT FLOODING. AVERAGE RAINFALL AMOUNTS ACROSS SOUTHEAST TEXAS ARE EXPECTED TO BE IN THE 3 TO 5 INCH RANGE WITH ISOLATED AMOUNTS OF 10 TO 15 INCHES POSSIBLE. THESE HIGHER AMOUNTS WILL LIKELY OCCUR NEAR AND EAST OF A HIGHWAY 59 AND INTERSTATE 10 CORRIDOR...OR ALONG AND EAST OF A LINE FROM EDNA TO KATY TO CONROE TO GROVETON. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY SHOWERS AND THUNDERSTORMS ARE EXPECTED TO END WITH THE COLD FRONT PASSAGE. THE FRONT IS EXPECTED TO REACH THE COAST TUESDAY MORNING. DRY CONDITIONS ARE EXPECTED TUESDAY AFTERNOON THROUGH FRIDAY. HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE REQUIRED THIS AFTERNOON AND TONIGHT.
In the hours before
Local storm report, Nov 17, 1:14 PM CST, 5 hours 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
114 PM CST MON NOV 17 2003
TIME(CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1200 PM MEADOWS TX TORNADO
11/17/03 FORT BEND MAJOR DAMAGE TO HOMES.
REPORTS OF SECOND STORIES
OF HOMES BEING BLOWN AWAY.
TREES AND POWER LINES DOWN.
1215 PM SW HOUSTON TX TORNADO
11/17/03 HARRIS MAJOR DAMAGE TO SOUTHWEST
VILLAGE APARTMENTS LOCATED
AT WEST BELFORT AND
KIRKWOOD.
REHBEINLocal storm report, Nov 17, 1:14 PM CST, 5 hours 5 minutes before
PRELIMINARY LOCAL STORM REPORT...AMENDED TO INCLUDE INJURIES
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
114 PM CST MON NOV 17 2003
TIME(CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1200 PM MEADOWS TX TORNADO
11/17/03 FORT BEND *** 8 INJ ***
MAJOR DAMAGE TO HOMES.
REPORTS OF SECOND STORIES
OF HOMES BEING BLOWN AWAY.
TREES AND POWER LINES DOWN.
TWO OF THE INJURIES
CONSIDERED SERIOUS.
REHBEINLocal storm report, Nov 17, 3:20 PM CST, 2 hours 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
320 PM CST MON NOV 17 2003
TIME(CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1207 PM HOUSTON TX TORNADO
11/17/03 HARRIS MINOR ROOF DAMAGE AND
STREET SIGNS TWISTED.
REPORTED AT DAIRY ASHFORD
AND AIRPORT.
0250 PM BRAZORIA TX TORNADO
11/17/03 BRAZORIA DAMAGE TO BUSINESSES IN THE
CITY OF BRAZORIA.
REHBEINLocal storm report, Nov 17, 3:35 PM CST, 2 hours 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
335 PM CST MON NOV 17 2003
TIME(CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0320 PM HOUSTON TX TORNADO
11/17/03 HARRIS DAMAGE TO BUILDINGS IN
DOWNTOWN HOUSTON NEAR
MINUTE MAID PARK.
REHBEINLocal storm report, Nov 17, 6:06 PM CST, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
606 PM CST MON NOV 17 2003
TIME(CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0520 PM WALLISVILLE TX TORNADO
11/17/03 CHAMBERS 3 VEHICLES OVERTURNED ON
I-10 WEST BOUND AT THE
TRINITY RIVER BRIDGE.
0500 PM BEACH CITY TX TORNADO
11/17/03 CHAMBERS NO REPORTED DAMAGE.
0435 PM DICKINSON TX TORNADO
11/17/03 GALVESTON DAMAGE TO CAR DEALERSHIPS
IN DICKINSON ALONG I-45
XXXThe office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 17, 6:01 PM CST | Tornado Warning | HGX | Chambers, Liberty | 44 min |
| Nov 17, 6:23 PM CST | Flash Flood Warning | HGX | Harris | 3 hr |
| Nov 17, 8:26 PM CST | Tornado Warning | HGX | Harris | 34 min |
| Nov 17, 8:28 PM CST | Tornado Warning | HGX | Brazoria, Galveston | 32 min |
| Nov 17, 8:32 PM CST | Tornado Warning | HGX | Harris | 28 min |
| Nov 17, 9:06 PM CST | Tornado Warning | HGX | Galveston, Harris | 24 min |
| Nov 17, 9:38 PM CST | Flash Flood Warning | HGX | Brazoria, Galveston, Harris | 3 hr |
| Nov 17, 10:09 PM CST | Tornado Warning | HGX | Liberty | 36 min |
| Nov 17, 11:16 PM CST | Special Marine Warning | HGX | 89 min | |
| Nov 17, 11:26 PM CST | Tornado Warning | HGX | Chambers | 49 min |
| Nov 18, 12:52 AM CST | Special Marine Warning | HGX | 113 min |
Nearby
Flash Flood Warnings in Texas, 2003Every flash flood warning in 2003
Sources
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.