Alert archive / Texas / Flash Flood Warnings in 1997
Flash Flood Warning 29, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at Apr 4, 1997, 10:55 PM CST for Houston County, Texas. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 4, 1997, 10:55 PM CST (04:55 UTC)
- Expired
- Apr 5, 1997, 1:00 AM CST
- In force
- 2 hr
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Houston County, TX
The radar
The Shreveport radar (KSHV), 195 km from the middle of the area, began a volume at 04:58 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.
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 4.9 hours before the alert went out and 204 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
- 94 J/kg
- Mixed-layer CIN
- -95 J/kg
- Mixed-layer LCL
- 621 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 206 m²/s²
- 0-3 km storm-relative helicity
- 332 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KHOU 050457 FFWHOU TXC225-050700- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1055 PM CST FRI APR 4 1997 THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 100 AM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST TEXAS ...HOUSTON COUNTY AT 1050 PM...A SERIES OF THUNDERSTORMS HAVE BEEN MOVING OVER THE SAME AREAS ALONG A LOVELADY TO NEAR WECHES CORRIDOR. THESE STORMS HAVE BEEN PRODUCING 1 TO 2 INCHES PER HOUR OVER THE SAME AREAS THAT HAD RECIEVED 2 TO 4 INCH AMOUNTS EARLIER TODAY. THIS ADDITIONAL RAINFALL WILL LIKELY CAUSE SMALL STREAMS TO RISE OUT OF THEIR BANKS FLOODING LOW LYING AREAS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. IF YOU OBSERVE FLOODING REPORT IT TO YOUR LOCAL SHERIFFS DEPARTMENT FOR IMMEDIATE RELAY TO THE NATIONAL WEATHER SERVICE.
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 Apr 4, 8:19 PM CST, 2 hours 36 minutes earlier.
Area forecast discussion, Apr 4, 8:19 PM CST, 2 hours 36 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 815 PM CST FRI APR 4 1997 FCSTS LOOK GOOD NOW. IF FRONT AND SQUALL LINE CONTINUE MOVING AT PRESENT RATE THINGS COULD END EARLIER THAN EXPECTED. HOWEVER SATELLITE INDICATES ANOTHER LINE DEVELOPING FURTHER WEST IN RESPONSE TO UPR LVL LOW KICKING OUT OF SW TX. WILL HAVE TO WAIT A FEW HOURS AND SEE HOW THINGS PROGRESS EASTWARD. LOOKS LIKE MAIN THREAT TONIGHT WITH LEADING SQUALL LINE WILL BE SEVERE WEATHER WHILE THREAT FOR HEAVY RAIN MIGHT NOT BE AS GREAT BUT WITH SATURDATED GROUND ONLY LITTLE AMOUNT OF RAIN REQUIRED. ALSO HIGH TIDES WILL KEEP BAYOUS FROM RUNNING OFF INTO GLS BAY INCRSG THREAT FOR HOU/GLS RGN. KEEP ALL WATCHES UP. 34
In the hours before
Special weather statement, Apr 4, 6:12 PM CST, 4 hours 43 minutes before
TXZ163-164-176>179-195>199-210>213-226-227-235-511-050700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 712 PM CDT FRI APR 4 1997 THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH EFFECTIVE UNTIL 1 AM FOR PARTS OF SOUTHEAST TEXAS. THE WATCH AREA IS MAINLY NORTH AND WEST OF A LINE FROM EDNA TO HOUSTON TO LIVINGSTON. COUNTIES INCLUDED IN THE WATCH AREA INCLUDE: AUSTIN...BRAZOS...BURLESON...COLORADO...FORT BEND...GRIMES... HARRIS...HOUSTON...JACKSON...MADISON...MONTGOMERY...POLK... SAN JACINTO...TRINITY...WALKER...WALLER...WASHINGTON AND WHARTON COUNTIES INCLUDING THE ADJACENT COASTAL WATERS. ROBERTSON...MILAM AND LEON COUNTIES IN CENTRAL TEXAS ARE ALSO INCLUDED IN THIS WATCH. A SQUALL LINE AHEAD OF A COOL FRONT IN CENTRAL TEXAS WILL CONTINUE MOVING EASTWARD INTO AN UNSTABLE SOUTHEAST TEXAS AIRMASS TONIGHT. THUNDERSTORMS ALONG THE LINE ARE CAPABLE OF REACHING SEVERE LIMITS. THE MAIN THREAT OF SEVERE WEATHER WILL BE STRONG DAMAGING WINDS...LARGE HAIL...AND TORNADOES. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORM AND TORNADO DEVELOPMENT IN AND NEAR THE WATCH AREA. PERSONS IN THIS AREA ARE URGED TO KEEP ABREAST OF THE LATEST WEATHER DEVELOPMENTS AND SHOULD BE PREPARED TO SEEK SAFE SHELTER SHOULD THREATENING WEATHER APPROACH YOUR AREA. MARINERS CAN EXPECT STRONG SOUTHERLY WINDS IN ADVANCE OF THE COLD FRONT TO SHIFT TO THE WEST AND NORTHWEST AS THE LINE PASSES THROUGH THE REGION. STAY TUNED TO NOA WEATHER RADIO...LOCAL OR CABLE MEDIA OUTLETS FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS.
Special weather statement, Apr 4, 7:13 PM CST, 3 hours 42 minutes before
TXZ163-164-176>179-195>199-210>213-226-227-235-511-050700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 712 PM CDT FRI APR 4 1997 THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH EFFECTIVE UNTIL 1 AM FOR PARTS OF SOUTHEAST TEXAS. THE WATCH AREA IS MAINLY NORTH AND WEST OF A LINE FROM EDNA TO HOUSTON TO LIVINGSTON. COUNTIES INCLUDED IN THE WATCH AREA INCLUDE: AUSTIN...BRAZOS...BURLESON...COLORADO...FORT BEND...GRIMES... HARRIS...HOUSTON...JACKSON...MADISON...MONTGOMERY...POLK... SAN JACINTO...TRINITY...WALKER...WALLER...WASHINGTON AND WHARTON COUNTIES INCLUDING THE ADJACENT COASTAL WATERS. ROBERTSON...MILAM AND LEON COUNTIES IN CENTRAL TEXAS ARE ALSO INCLUDED IN THIS WATCH. A SQUALL LINE AHEAD OF A COOL FRONT IN CENTRAL TEXAS WILL CONTINUE MOVING EASTWARD INTO AN UNSTABLE SOUTHEAST TEXAS AIRMASS TONIGHT. THUNDERSTORMS ALONG THE LINE ARE CAPABLE OF REACHING SEVERE LIMITS. THE MAIN THREAT OF SEVERE WEATHER WILL BE STRONG DAMAGING WINDS...LARGE HAIL...AND TORNADOES. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORM AND TORNADO DEVELOPMENT IN AND NEAR THE WATCH AREA. PERSONS IN THIS AREA ARE URGED TO KEEP ABREAST OF THE LATEST WEATHER DEVELOPMENTS AND SHOULD BE PREPARED TO SEEK SAFE SHELTER SHOULD THREATENING WEATHER APPROACH YOUR AREA. MARINERS CAN EXPECT STRONG SOUTHERLY WINDS IN ADVANCE OF THE COLD FRONT TO SHIFT TO THE WEST AND NORTHWEST AS THE LINE PASSES THROUGH THE REGION. STAY TUNED TO NOA WEATHER RADIO...LOCAL OR CABLE MEDIA OUTLETS FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS.
Special weather statement, Apr 4, 9:27 PM CST, 1 hour 28 minutes before
TXZ-235-236-050400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 927 PM CST FRI APR 4 1997 ...JACKSON COUNTY REMAINS IN A TORNADO WATCH UNTIL 1 AM... SEVERE THUNDERSTORM WATCH NUMBER 137 HAS BEEN ISSUED FOR PARTS OF SOUTH TEXAS AND THE MIDDLE TEXAS COAST. MATAGORDA COUNTY HAS BEEN REMOVED FROM THE WATCH. HOWEVER CONDITIONS MAY WARRANT ADDING SEVERAL COUNTIES AROUND THE MATAGORDA BAY AREA LATER TONIGHT/EARLY SATURDAY MORNING...INCLUDING MATAGORDA COUNTY. STAY TUNED TO NOAA WEATHER RADIO...LOCAL RADIO OR TELEVISION...OR YOUR LOCAL CABLE PROVIDER FOR FURTHER UPDATES...STATEMENTS...OR WARNINGS.
Special weather statement, Apr 4, 9:29 PM CST, 1 hour 26 minutes before
TXZ-235-236-050400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 927 PM CST FRI APR 4 1997 ...JACKSON COUNTY REMAINS IN A TORNADO WATCH UNTIL 1 AM... SEVERE THUNDERSTORM WATCH NUMBER 137 HAS BEEN ISSUED FOR PARTS OF SOUTH TEXAS AND THE MIDDLE TEXAS COAST. MATAGORDA COUNTY HAS BEEN REMOVED FROM THE WATCH. HOWEVER CONDITIONS MAY WARRANT ADDING SEVERAL COUNTIES AROUND THE MATAGORDA BAY AREA LATER TONIGHT/EARLY SATURDAY MORNING...INCLUDING MATAGORDA COUNTY. STAY TUNED TO NOAA WEATHER RADIO...LOCAL RADIO OR TELEVISION...OR YOUR LOCAL CABLE PROVIDER FOR FURTHER UPDATES...STATEMENTS...OR WARNINGS.
Special weather statement, Apr 4, 9:41 PM CST, 1 hour 14 minutes before
TXZ163-164-176>179-195>200-210>214-226-227-235>238-511-513-051035- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1041 PM CDT FRI APR 4 1997 THE NATIONAL WEATHER SERVICE HAS ISSUED A NEW TORNADO WATCH NOW IN EFFECT UNTIL 4 AM FOR PORTIONS OF SOUTHEAST TEXAS MAINLY EAST OF A LINE FROM BAY CITY TO HOUSTON TO GROVETON. COUNTIES IN THIS WATCH INCLUDE: BRAZORIA...CHAMBERS...FORT BEND...GALVESTON...HARRIS...LIBERTY... MATAGORDA...MONTGOMERY...POLK...SAN JACINTO AND TRINITY COUNTIES INCLUDING THE ADJACENT COASTAL WATERS. THE TORNADO WATCH ISSUED EARLIER TONIGHT FOR WESTERN AREAS OF SOUTHEAST TEXAS REMAINS IN EFFECT UNTIL 1 AM. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS TO FORM IN AND NEAR THE WATCH AREA. PEOPLE IN THESE AREAS SHOULD REMAIN ALERT TO CHANGING WEATER CONDITIONS AND BE PREPARED TO SEEK SHELTER SHOULD SEVERE WEATHER APPROACH YOUR AREA. STAY TUNED TO NOAA WEATHER RADIO...RADIO OR TELEVISION FOR THE LATEST UPDATES CONCERNING THIS DEVELOPING WEATHER SITUATION.
Special weather statement, Apr 4, 10:41 PM CST, 14 minutes before
TXZ163-164-176>179-195>200-210>214-226-227-235>238-511-513-051035- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1041 PM CDT FRI APR 4 1997 THE NATIONAL WEATHER SERVICE HAS ISSUED A NEW TORNADO WATCH NOW IN EFFECT UNTIL 4 AM FOR PORTIONS OF SOUTHEAST TEXAS MAINLY EAST OF A LINE FROM BAY CITY TO HOUSTON TO GROVETON. COUNTIES IN THIS WATCH INCLUDE: BRAZORIA...CHAMBERS...FORT BEND...GALVESTON...HARRIS...LIBERTY... MATAGORDA...MONTGOMERY...POLK...SAN JACINTO AND TRINITY COUNTIES INCLUDING THE ADJACENT COASTAL WATERS. THE TORNADO WATCH ISSUED EARLIER TONIGHT FOR WESTERN AREAS OF SOUTHEAST TEXAS REMAINS IN EFFECT UNTIL 1 AM. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS TO FORM IN AND NEAR THE WATCH AREA. PEOPLE IN THESE AREAS SHOULD REMAIN ALERT TO CHANGING WEATER CONDITIONS AND BE PREPARED TO SEEK SHELTER SHOULD SEVERE WEATHER APPROACH YOUR AREA. STAY TUBNED TO NOAA WEATHER RADIO...RADIO OR TELEVISION FOR THE LATEST UPDATES CONCERNING THIS DEVELOPING WEATHER SITUATION.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 7:50 PM CST | Tornado Warning | HGX | Burleson | 55 min |
| Apr 4, 8:41 PM CST | Severe Thunderstorm Warning | HGX | Brazos | 64 min |
Nearby
Flash Flood Warnings in Texas, 1997Every flash flood warning in 1997
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.