Alert archive / Texas / Flash Flood Warnings in 1997
Flash Flood Warning 57, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at Jun 9, 1997, 6:36 AM CDT 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
- Jun 9, 1997, 6:36 AM CDT (11:36 UTC)
- Expired
- Jun 9, 1997, 8:45 AM CDT
- 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 11:36 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, 11.6 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
- 703 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 1175 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -50 m²/s²
- 0-3 km storm-relative helicity
- -14 m²/s²
- Significant tornado parameter
- -0.1
- Supercell composite
- -1.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KHOU 091134 FFWHOU TXC225-091345- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 636 AM CDT MON JUN 9 1997 THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 845 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST TEXAS ...HOUSTON COUNTY AT 630 AM...VERY HEAVY RAIN CONTINUED TO FALL OVER MUCH OF HOUSTON COUNTY. DOPPLER RADAR HAS ESTIMATED RAINFALL ACCUMULATIONS BETWEEN 3 AND 4 INCHES IN THE AUSTONIO AREA ALONG HIGHWAY 21 AND VERY HEAVY RAIN WAS ALSO FALLING ALONG HIGHWAY 7 BETWEEN CROCKETT AND RATCLIFF. ANOTHER 1 TO 2 INCHES OF RAIN IS POSSIBLE IN THE NEXT TWO HOURS. HEAVY RAIN OF THIS MAGNITUDE WILL LIKELY CAUSE FLOODING OF LOW AREAS AND UNDERPASSES...ALTHOUGH ROAD CONDITIONS COULD NOT BE CONFIRMED WITH THE HOUSTON COUNTY SHERIFFS DEPARTMENT. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATzER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND.
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 Jun 9, 2:10 AM CDT, 4 hours 26 minutes earlier.
Area forecast discussion, Jun 9, 2:10 AM CDT, 4 hours 26 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 210 AM CDT MON JUN 9 1997 CURRENT SHRA/TSRA COMPLEX ENTERING WRN PORTIONS OF OUR CWA SLOWLY EDGING E. LATEST TREND HAS BEEN FOR CONVECTION TO WEAKEN...WITH CLOUD TOP WARMING INDICATED BY SATELLITE. EXPECT THIS WEAKENING TREND TO CONTINUE. BUT THIS SETS THE STAGE FOR SHRA/TSRA DEVELOPMENT LATER ON TODAY. PRESENT STORMS WILL MOVE OUTFLOW BOUNDARIES INTO SE TX THAT WILL INTERACT WITH A MOIST (DEW POINTS IN THE LOWER 70S)... AND UNSTABLE (LI VALUES -2 TO -4 AND CAPES 1200 TO 1500) AIRMASS. WEAK TROF REMAINS DRAPED ACROSS NRN PORTIONS OF OUR CWA WHICH WILL ALSO ACT AS A FOCUSING BOUNDARY DURING THE DAY. WEAK WINDS ALOFT FAVOR SOME LOCALLY +RA AGAIN...AND WOULD LIKE THIS INCLUDED IN THE ZONES FOR ALL OF SE TX. TOO EARLY FOR FLASH FLOOD WATCH...BUT MORNING SHIFT WILL HAVE TO CLOSELY MONITOR THE SITUATION. AFTER TODAY'S ACTION...RIDGE BUILDS IN AND MEAN RH VALUES BEGIN A SLOW DECREASE...BRINGING AREA BACK INTO A MORE TYPICAL SUMMERTIME PATTERN. WILL GO SLIGHTLY HIGHER THAN 1ST PERIOD'S FWC POPS AND LEAN TOWARD COOLER FAN TEMPS. WARMER FWC TEMPS 2ND THRU 4TH PERIODS ARE FAVORED. PRELIMS CLL EBBA2 085/071 090/070 5222 (LOCALLY +RA 1ST PD) IAH EEBA 085/072 090/071 5222 (LOCALLY +RA 1ST PD) GLS EEBA 085/076 087/075 5322 (LOCALLY +RA 1ST PD) 42
In the hours before
Special weather statement, Jun 9, 3:42 AM CDT, 2 hours 54 minutes before
TXZ176>179-195>200-210>214-226-227-235>238-091650- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 342 AM CDT MON JUN 9 1997 ...LOCALLY HEAVY RAINFALL POSSIBLE ACROSS ALL OF SOUTHEAST TEXAS TODAY... NUMEROUS SHOWERS AND THUNDERSTORMS ACROSS CENTRAL TEXAS OVERNIGHT WILL CONTINUE TO SLOWLY WEAKEN AS THEY MOVE INTO SOUTHEAST TEXAS. MANY BOUNDARIES FROM THESE STORMS WILL SET UP ACROSS SOUTHEAST TEXAS THIS MORNING. THESE BOUNDARIES WILL INTERACT WITH A VERY MOIST AND UNSTABLE ATMOSPHERE ACROSS SOUTHEAST TEXAS...PRODUCING SHOWERS AND THUNDERSTORMS DURING THE DAY. WINDS ALOFT REMAIN RATHER WEAK...FAVORING A SLOW MOVEMENT FOR THE SHOWERS AND THUNDERSTORMS THAT DO DEVELOP. AS A RESULT...LOCALLY HEAVY RAINFALL IS POSSIBLE. RAINFALL AMOUNTS WILL AVERAGE 1/2 TO 1 INCH WITH ISOLATED TOTALS BETWEEN 2 AND 4 INCHES POSSIBLE. SOME HEAVY DOWNPOURS MAY LEAD TO LOCALIZED FLOODING OF NORMALLY FLOOD PRONE LOCATIONS...AND MOTORISTS ARE URGED TO USE EXTREME CAUTION WHEN DRIVING THROUGHOUT THE DAY. SHOWER AND THUNDERSTORM DEVELOPMENT WILL BE MONITORED CLOSELY BY THE NATIONAL WEATHER SERVICE THROUGHOUT THE DAY...AND A FLASH FLOOD WATCH MAY NEED TO BE ISSUED LATER THIS MORNING. STAY TUNED TO NOAA WEATHER RADIO OR OTHER WEATHER NEWS SOURCES FOR FURTHER UPDATES.
Special weather statement, Jun 9, 3:42 AM CDT, 2 hours 54 minutes before
TXZ176>179-195>200-210>214-226-227-235>238-091650- HEAVY RAINFALL OUTLOOK...CORRECTED HEADER NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 342 AM CDT MON JUN 9 1997 ...LOCALLY HEAVY RAINFALL POSSIBLE ACROSS ALL OF SOUTHEAST TEXAS TODAY... NUMEROUS SHOWERS AND THUNDERSTORMS ACROSS CENTRAL TEXAS OVERNIGHT WILL CONTINUE TO SLOWLY WEAKEN AS THEY MOVE INTO SOUTHEAST TEXAS. MANY BOUNDARIES FROM THESE STORMS WILL SET UP ACROSS SOUTHEAST TEXAS THIS MORNING. THESE BOUNDARIES WILL INTERACT WITH A VERY MOIST AND UNSTABLE ATMOSPHERE ACROSS SOUTHEAST TEXAS...PRODUCING SHOWERS AND THUNDERSTORMS DURING THE DAY. WINDS ALOFT REMAIN RATHER WEAK...FAVORING A SLOW MOVEMENT FOR THE SHOWERS AND THUNDERSTORMS THAT DO DEVELOP. AS A RESULT...LOCALLY HEAVY RAINFALL IS POSSIBLE. RAINFALL AMOUNTS WILL AVERAGE 1/2 TO 1 INCH WITH ISOLATED TOTALS BETWEEN 2 AND 4 INCHES POSSIBLE. SOME HEAVY DOWNPOURS MAY LEAD TO LOCALIZED FLOODING OF NORMALLY FLOOD PRONE LOCATIONS...AND MOTORISTS ARE URGED TO USE EXTREME CAUTION WHEN DRIVING THROUGHOUT THE DAY. SHOWER AND THUNDERSTORM DEVELOPMENT WILL BE MONITORED CLOSELY BY THE NATIONAL WEATHER SERVICE THROUGHOUT THE DAY...AND A FLASH FLOOD WATCH MAY NEED TO BE ISSUED LATER THIS MORNING. STAY TUNED TO NOAA WEATHER RADIO OR OTHER WEATHER NEWS SOURCES FOR FURTHER UPDATES.
Special weather statement, Jun 9, 3:43 AM CDT, 2 hours 53 minutes before
TXZ176>179-195>200-210>214-226-227-235>238-091650- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 342 AM CDT MON JUN 9 1997 ...LOCALLY HEAVY RAINFALL POSSIBLE ACROSS ALL OF SOUTHEAST TEXAS TODAY... NUMEROUS SHOWERS AND THUNDERSTORMS ACROSS CENTRAL TEXAS OVERNIGHT WILL CONTINUE TO SLOWLY WEAKEN AS THEY MOVE INTO SOUTHEAST TEXAS. MANY BOUNDARIES FROM THESE STORMS WILL SET UP ACROSS SOUTHEAST TEXAS THIS MORNING. THESE BOUNDARIES WILL INTERACT WITH A VERY MOIST AND UNSTABLE ATMOSPHERE ACROSS SOUTHEAST TEXAS...PRODUCING SHOWERS AND THUNDERSTORMS DURING THE DAY. WINDS ALOFT REMAIN RATHER WEAK...FAVORING A SLOW MOVEMENT FOR THE SHOWERS AND THUNDERSTORMS THAT DO DEVELOP. AS A RESULT...LOCALLY HEAVY RAINFALL IS POSSIBLE. RAINFALL AMOUNTS WILL AVERAGE 1/2 TO 1 INCH WITH ISOLATED TOTALS BETWEEN 2 AND 4 INCHES POSSIBLE. SOME HEAVY DOWNPOURS MAY LEAD TO LOCALIZED FLOODING OF NORMALLY FLOOD PRONE LOCATIONS...AND MOTORISTS ARE URGED TO USE EXTREME CAUTION WHEN DRIVING THROUGHOUT THE DAY. SHOWER AND THUNDERSTORM DEVELOPMENT WILL BE MONITORED CLOSELY BY THE NATIONAL WEATHER SERVICE THROUGHOUT THE DAY...AND A FLASH FLOOD WATCH MAY NEED TO BE ISSUED LATER TH*IS MORNING. STAY TUNED TO NOAA WEATHER RADIO OR OTHER WEATHER NEWS SOURCES FOR FURTHER UPDATES.
Special weather statement, Jun 9, 3:44 AM CDT, 2 hours 52 minutes before
TXZ176>179-195>200-210>214-226-227-235>238-091650- HEAVY RAINFALL OUTLOOK...CORRECTED HEADER NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 342 AM CDT MON JUN 9 1997 ...LOCALLY HEAVY RAINFALL POSSIBLE ACROSS ALL OF SOUTHEAST TEXAS TODAY... NUMEROUS SHOWERS AND THUNDERSTORMS ACROSS CENTRAL TEXAS OVERNIGHT WILL CONTINUE TO SLOWLY WEAKEN AS THEY MOVE INTO SOUTHEAST TEXAS. MANY BOUNDARIES FROM THESE STORMS WILL SET UP ACROSS SOUTHEAST TEXAS THIS MORNING. THESE BOUNDARIES WILL INTERACT WITH A VERY MOIST AND UNSTABLE ATMOSPHERE ACROSS SOUTHEAST TEXAS...PRODUCING SHOWERS AND THUNDERSTORMS DURING THE DAY. WINDS ALOFT REMAIN RATHER WEAK...FAVORING A SLOW MOVEMENT FOR THE SHOWERS AND THUNDERSTORMS THAT DO DEVELOP. AS A RESULT...LOCALLY HEAVY RAINFALL IS POSSIBLE. RAINFALL AMOUNTS WILL AVERAGE 1/2 TO 1 INCH WITH ISOLATED TOTALS BETWEEN 2 AND 4 INCHES POSSIBLE. SOME HEAVY DOWNPOURS MAY LEAD TO LOCALIZED FLOODING OF NORMALLY FLOOD PRONE LOCATIONS...AND MOTORISTS ARE URGED TO USE EXTREME CAUTION WHEN DRIVING THROUGHOUT THE DAY. SHOWER AND THUNDERSTORM DEVELOPMENT WILL BE MONITORED CLOSELY BY THE NATIONAL WEATHER SERVICE THROUGHOUT THE DAY...AND A FLASH FLOOD WATCH MAY NEED TO, BE ISSUED LATER THIS MORNING. STAY TUNED TO NOAA WEATHER RADIO OR OTHER WEATHER NEWS SOURCES FOR FURTHER UPDATES.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 6:10 AM CDT | Flash Flood Warning | HGX | Madison | 2 hr |
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.