Alert archive / Texas / Flash Flood Warnings in 2002
Flash Flood Warning 33, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at Sep 7, 2002, 1:38 PM CDT for Waller County, Washington 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
- Sep 7, 2002, 1:38 PM CDT (18:38 UTC)
- Expired
- Sep 7, 2002, 4:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
Counties Waller County, TX, Washington County, TX
The radar
The Houston radar (KHGX), 122 km from the middle of the area, began a volume at 18:38 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 12:00Z, 6.6 hours before the alert went out and 284 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
- 301 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 917 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KHGX 071838
FFWHOU
TXC473-477-072130-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
135 PM CDT SAT SEP 7 2002
THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WASHINGTON COUNTY IN SOUTHEAST TEXAS
WALLER COUNTY IN SOUTHEAST TEXAS
* UNTIL 430 PM CDT
* AT 128 PM CDT...DOPPLER RADAR INDICATED A PERSISTENT BAND OF
THUNDERSTORMS EXTENDING FROM SOUTHEASTERN WASHINGTON COUNTY THROUGH
CENTRAL WALLER COUNTY. 6 TO 8 INCHES OF RAIN HAS FALLEN IN THE LAST 3
HOURS. ANOTHER 2 TO 4 INCHES OF RAIN CAN BE EXPECTED BY 330 PM.
WASHINGTON COUNTY SHERIFFS OFFICE REPORTED THAT FM 1371 IS WATER
COVERED.
* FLOODING IS EXPECTED IN OR NEAR...
MONAVILLE AND CHAPPELL HILL
DO NOT CROSS ANY LOCATION WHERE WATER COVERS THE ROAD
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 3030 9622 2989 9594 2980 9606 2993 9612
3002 9609 3008 9616 3008 9624 3016 9629What 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 Sep 7, 9:55 AM CDT, 3 hours 43 minutes earlier.
Area forecast discussion, Sep 7, 9:55 AM CDT, 3 hours 43 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
955 AM CDT SAT SEP 7 2002
...TROPICAL STORM WARNING HAS BEEN DISCONTINUED...
BANDS OF RAIN CONTINUE TO ROTATE AROUND THE DIFFUSE CENTER OF FAY
LOCATED 5-10 MILES NORTHWEST OF VICTORIA. WHAT IS OF CONCERN IS THE
TROPICAL FETCH OF MOISTURE STREAMING INTO SE TX. THIS FETCH EXTENDS
FROM THE BAY OF CAMPECHE TO CLL. WATER VAPOR IMAGERY REVEALS SOME
DRY AIR OVER THE SOUTHWEST ZONES. THIS WILL ONLY ALLOW MORE BREAKS
IN THE CLOUDS AND MORE HEATING CREATING GREATER DESTABILIZATION
LATER TODAY. PWS REMAIN AOA 2.2 INCHES WITH K INDICES IN THE
MID/UPPER 30S. WILL MAINTAIN HIGH POPS BUT LOWER SLIGHTLY EITHER
SIDE OF CURRENT FEEDER BAND. WILL MAINTAIN FLASH FLOOD WATCH TODAY
AND THIS WILL LIKELY BE EXTENDED THROUGH SUNDAY. NEW MODEL DATA JUST
COMING IN REVEALS A RATHER STORMY SUNDAY WITH SIGNIFICANT ADDITIONAL
RAINFALL.
TIDES STILL ON THE HIGH SIDE AND THESE WILL SLOWLY DECLINE THROUGH
OUT THE DAY. NOT SURE IF SPC WILL CONTINUE TORNADO WATCH THIS
AFTERNOON BUT CONDITIONS REMAIN SOMEWHAT FAVORABLE FOR ISOLATED
TORNADOES.
MARINE INTERESTS: AN SCEC IS NOW IN EFFECT FOR THE BAYS. SMALL CRAFT
SHOULD REMAIN IN PORT OVER THE GULF OF MEXICO.
43/47/42/35/34/WT
.HGX...FLASH FLOOD WATCH TODAY ALL BUT FAR NE ZONES.
TORNADO WATCH SOUTH PORTIONS.In the hours before
Special weather statement, Sep 7, 10:49 AM CDT, 2 hours 49 minutes before
TXZ176>179-195>200-210>214-226-227-237-238-072100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1049 AM CDT SAT SEP 7 2002 ...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH FOR MOST OF SOUTHEAST TEXAS UNTIL 4 PM... COUNTIES IN THE WATCH AREA INCLUDE: AUSTIN...BRAZORIA...BRAZOS... BURLESON...CHAMBERS...COLORADO...FORT BEND...GALVESTON...GRIMES... HARRIS...LIBERTY...MADISON...MONTGOMERY...POLK...SAN JACINTO... WALKER...WALLER...WASHINGTON AND WHARTON. DAYTIME HEATING COMBINED WITH RAINBANDS ASSOCIATED WITH TROPICAL DEPRESSION FAY MOVING ONSHORE WILL LEAD TO A CONTINUED CHANCE OF SEVERE WEATHER THIS AFTERNOON. TORNADOES AND DAMAGING WINDS WILL BE THE MAIN SEVERE WEATHER. REMEMBER A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. RESIDENTS SHOULD BE ON ALERT FOR TORNADO WARNINGS. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL TELEVISION OR RADIO STATIONS...OR YOUR CABLE TELEVISION PROVIDER FOR LATER STATEMENTS CONCERNING THIS SEVERE WEATHER THREAT.
Local storm report, Sep 7, 12:35 PM CDT, 1 hour 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1235 PM CDT SAT SEP 07 2002
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1125 PM 3 E FREEPORT TX TORNADO
09/06/02 BRAZORIA HOME DAMAGED IN
SURFSIDE. REPORTED BY
EMERGENCY MANAGEMENT.
1245 AM WEST COLUMBIA TX TORNADO
09/07/02 BRAZORIA TREES DOWN. REPORTED
BY EMERGENCY MANAGEMENT.
0215 AM BOLING TX TORNADO
09/07/02 WHARTON ONE MOBILE HOME
DESTROYED...THREE
SEVERELY DAMAGED.
REPORTED BY EMERGENCY
MANAGEMENT.
0220 AM WHARTON TX WIND DAMAGE
09/07/02 WHARTON TREES DOWN. REPORTED BY
MEDIA.
0319 AM NEEDVILLE TX TORNADO
09/07/02 FORT BEND *** 2 INJ ***
MOBILE HOME DESTROYED.
REPORTED BY EMERGENCY
MANAGEMENT.
0330 AM HUNGERFORD TX TORNADO
09/07/02 WHARTON MOBILE HOME AND SHED
DESTROYED WITH LARGE
DUMPSTER BLOWN SEVERAL
FEET. REPORTED BY
EMERGENCY MANAGEMENT.
0405 AM EAGLE LAKE TX 71 MPH TSTM GUST
09/07/02 COLORADO REPORTED BY EMERGENCY
MANAGEMENT.Local storm report, Sep 7, 12:35 PM CDT, 1 hour 3 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1235 PM CDT SAT SEP 07 2002
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1125 PM 3 E FREEPORT TX TORNADO
09/06/02 BRAZORIA HOME DAMAGED IN
SURFSIDE. REPORTED BY
EMERGENCY MANAGEMENT.
1245 AM WEST COLUMBIA TX TORNADO
09/07/02 BRAZORIA TREES DOWN. REPORTED
BY EMERGENCY MANAGEMENT.
0215 AM BOLING TX TORNADO
09/07/02 WHARTON ONE MOBILE HOME
DESTROYED...THREE
SEVERELY DAMAGED.
REPORTED BY EMERGENCY
MANAGEMENT.
0220 AM WHARTON TX WIND DAMAGE
09/07/02 WHARTON TREES DOWN. REPORTED BY
MEDIA.
0319 AM NEEDVILLE TX TORNADO
09/07/02 FORT BEND *** 2 INJ ***
MOBILE HOME DESTROYED.
REPORTED BY EMERGENCY
MANAGEMENT.
0340 AM HUNGERFORD TX TORNADO
09/07/02 WHARTON MOBILE HOME AND SHED
DESTROYED WITH LARGE
DUMPSTER BLOWN SEVERAL
FEET. REPORTED BY
EMERGENCY MANAGEMENT.
0405 AM EAGLE LAKE TX 71 MPH TSTM GUST
09/07/02 COLORADO REPORTED BY EMERGENCY
MANAGEMENT.The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 7:53 PM CDT | Flash Flood Warning | HGX | Brazoria | 3 hr |
| Sep 6, 8:51 PM CDT | Flash Flood Warning | HGX | Galveston | 3 hr |
| Sep 6, 10:35 PM CDT | Flash Flood Warning | HGX | Brazoria, Matagorda | 3 hr |
| Sep 6, 11:17 PM CDT | Tornado Warning | HGX | Brazoria | 43 min |
| Sep 7, 12:01 AM CDT | Tornado Warning | HGX | Brazoria | 44 min |
| Sep 7, 12:17 AM CDT | Flash Flood Warning | HGX | Matagorda | 3 hr |
| Sep 7, 12:34 AM CDT | Tornado Warning | HGX | Matagorda | 41 min |
| Sep 7, 12:45 AM CDT | Tornado Warning | HGX | Brazoria | 45 min |
| Sep 7, 1:39 AM CDT | Tornado Warning | HGX | Brazoria, Matagorda, Wharton | 51 min |
| Sep 7, 2:13 AM CDT | Flash Flood Warning | HGX | Fort Bend, Wharton | 3 hr |
| Sep 7, 2:47 AM CDT | Tornado Warning | HGX | Brazoria, Fort Bend | 43 min |
| Sep 7, 2:56 AM CDT | Flash Flood Warning | HGX | Brazoria | 2 hr |
| Sep 7, 3:39 AM CDT | Tornado Warning | HGX | Wharton | 36 min |
| Sep 7, 4:37 AM CDT | Flash Flood Warning | HGX | Colorado | 3 hr |
Nearby
Flash Flood Warnings in Texas, 2002Every flash flood warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.