Alert archive / Texas / Flash Flood Warnings in 1997
Flash Flood Warning 59, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at Jun 10, 1997, 6:25 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 10, 1997, 6:25 AM CDT (11:25 UTC)
- Expired
- Jun 10, 1997, 8:30 AM CDT
- In force
- 2 hr
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Houston County, TX
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 11.4 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
- 299 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 611 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KHOU 101124 FFWHOU TXC225-101330- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 625 AM CDT TUE JUN 10 1997 THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 830 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST TEXAS ...HOUSTON COUNTY AT 620 AM...RADAR CONTINUED TO INDICATE HEAVY RAINS IN HOUSTON COUNTY. RAINFALL RATES AVERAGING 1/2 INCH PER HOUR WITH ISOLATED 1.5 TO 2 INCHES PER HOUR CAN BE EXPECTED FOR THE NEXT 1 TO 2 HOURS. MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR UNDERPASSES IF WATER COVERS THE ROADWAY. NEVER TRY TO C0ROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.
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 10, 2:40 AM CDT, 3 hours 45 minutes earlier.
Area forecast discussion, Jun 10, 2:40 AM CDT, 3 hours 45 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 239 AM CDT TUE JUN 10 1997 FOR THE SHORT TERM...TSTMS OVR NE TX WERE DRIFTING SRD A BIT TWD HOUSTON COUNTY. ALSO...SATL AND RDR SHOW A CONVERGENCE ZNE OFFSHORE FM NR FREEPORT SRD WHERE SOME SHRAS OR TSTMS CUD OCCUR WITHIN THE NEXT FEW HRS OR SO. FOR THIS FCST...NOTED THAT THE ETA H5 LVL BLDS A WK RDG TO THE WEST WHICH IN TURN HELPS DEVELOP A NWRLY FLOW OVR SETX. THE SFC STNRY FNT OVR NE TX MAY SAG SRD TWD THE NRN PTNS OF THE FA TDY...BUT FEEL THAT THIS FEATURE WL STAY MAINLY N OF THE FA THRU THE 48 HR PD. A WK S/W WL DEVELOP BY 36 HRS OVR THE HILL COUNTRY AND NE TX...REFLECTED BY A WK LOW AT THE SFC ON THE TX/LA/AR BORDER. THIS WL BE IN ADDITION TO ANY SEABREEZE ACTIVITY THAT MAY DEVELOP. TSTMS THAT DEVELOP ALONG THESE BNDRY/S MAY IN TURN PUSH OUTFLOWS INTO THE FA. ONE INHIBITING FACTOR WL BE THE DECREASING 1000 TO 500 MB MEAN RH...THO ETA PWAT/S ARE AOA 1.6 EACH AFT AND EVE. ALSO...ANY TSTMS THAT DO DEVELOP WL BE SLO MOVG AS SHOWN BY THE LGT WNDS UP TO 500 MB. PATCHY FOG WL THEN DEVELOP DURG THE OVRNGT HRS OVR MOST INLAND LOCATIONS. WL COMPROMISE BETWEEN FAN AND FWC TEMPS AND POPS. 40 PRELIMS... CLL EBBB 088/070 090/072 090 4232 PTLY SUNNY 1ST PD IAH EBBB 088/072 090/073 091 4232 PTLY SUNNY 1ST PD GLS BBBB 085/075 087/077 088 4332
In the hours before
Special weather statement, Jun 10, 4:22 AM CDT, 2 hours 3 minutes before
TXZ176>179-195>200-210>214-226-227-235>238-511-513-102125- SEVERE WEATHER AND HEAVY RAINFALL OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 422 AM CDT TUE JUN 10 1997 A SLIGHT CHANCE FOR SEVERE THUNDERSTORMS EXISTS OVER MUCH OF SOUTHEAST TEXAS TODAY. THE SLIGHT RISK AREA IS ALONG AND EAST OF A LINE FROM GALVESTON TO HUNTSVILLE TO APPLE SPRINGS IN EASTERN TRINITY COUNTY. THERE IS ALSO THE CHANCE FOR HEAVY RAINFALL OVER ALL OF SOUTHEAST TEXAS. THUNDERSTORMS WERE OCCURRING EARLY THIS MORNING ALONG AND SOUTH OF A STATIONARY FRONT OVER NORTH TEXAS. THIS LINE OF STORMS WILL DRIFT SOUTHWARD INTO THE NORTHERN PORTIONS OF SOUTHEAST TEXAS THIS MORNING. SOME OF THESE STORMS MAY BECOME SEVERE WITH LARGE HAIL AND STRONG WINDS IN EXCESS OF 55 MILES AN HOUR. THESE STORMS WILL ALSO PRODUCE LOCALLY HEAVY RAINFALL. OUTFLOWS FROM THESE STORMS WILL THEN INTERACT WITH THE SEABREEZE FRONT NEAR THE COAST LATER TODAY AND WITH A WEAK UPPER LEVEL DISTURBANCE ALOFT. THIS COMBINATION WILL THEN LEAD TO THE GENERATION OF MORE SHOWERS AND THUNDERSTORMS ACROSS SOUTHEAST TEXAS. MOISTURE LEVELS ACROSS THE AREA WILL CONTINUE QUITE HIGH AS THE SOUTHEAST SURFACE WINDS MOVE OVER THE REGION FROM THE GULF. HOWEVER UPPER LEVEL WINDS OVER THE AREA WILL BE LIGHT. THUS...ANY STORMS THAT DO DEVELOP LATER TODAY WILL BE SLOW MOVING AND PRODUCING LOCALLY HEAVY RAINFALL. RAINFALL FROM THUNDERSTORMS WILL AVERAGE 1/2 TO 1 INCH THROUGH EARLY THIS EVENING. ISOLATED HIGHER AMOUNTS OF 2 TO 4 INCHES ARE POSSIBLE. MARINERS SHOULD BE ALERT TO THUNDERSTORM DEVELOPMENT OVER THE BAYS AND COASTAL WATERS TODAY. THESE THUNDERSTORMS WILL LIKELY PRODUCE STRONG GUSTY WINDS IN EXCESS OF 35 KNOTS...HEAVY DOWNPOURS... FREQUENT CLOUD TO WATER LIGHTNING...AND BRIEF WATERSPOUTS. MARINERS AND OPERATORS OF SMALL CRAFT SHOULD BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AND MOVE TO PORT IF THUNDERSTORMS APPROACH. STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND UPDATES.
Special weather statement, Jun 10, 4:23 AM CDT, 2 hours 2 minutes before
TXZ176>179-195>200-210>214-226-227-235>238-511-513-102125- SEVERE WEATHER AND HEAVY RAINFALL OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 422 AM CDT TUE JUN 10 1997 A SLIGHT CHANCE FOR SEVERE THUNDERSTORMS EXISTS OVER MUCH OF SOUTHEAST TEXAS TODAY. THE SLIGHT RISK AREA IS ALONG AND EAST OF A LINE FROM GALVESTON TO HUNTSVILLE TO APPLE SPRINGS IN EASTERN TRINITY COUNTY. THERE IS ALSO THE CHANCE FOR HEAVY RAINFALL OVER ALL OF SOUTHEAST TEXAS. THUNDERSTORMS WERE OCCURRING EARLY THIS MORNING ALONG AND SOUTH OF A STATIONARY FRONT OVER NORTH TEXAS. THIS LINE OF STORMS WILL DRIFT SOUTHWARD INTO THE NORTHERN PORTIONS OF SOUTHEAST TEXAS THIS MORNING. SOME OF THESE STORMS MAY BECOME SEVERE WITH LARGE HAIL AND STRONG WINDS IN EXCESS OF 55 MILES AN HOUR. THESE STORMS WILL ALSO PRODUCE LOCALLY HEAVY RAINFALL. OUTFLOWS FROM THESE STORMS WILL THEN INTERACT WITH THE SEABREEZE FRONT NEAR THE COAST LATER TODAY AND WITH A WEAK UPPER LEVEL DISTURBANCE ALOFT. THIS COMBINATION WILL THEN LEAD TO THE GENERATION OF MORE SHOWERS AND THUNDERSTORMS ACROSS SOUTHEAST TEXAS. MOISTURE LEVELS ACROSS THE AREA WILL CONTINUE QUITE HIGH AS THE SOUTHEAST SURFACE WINDS MOVE OVER THE REGION FROM THE GULF. HOWEVER UPPER LEVEL WINDS OVER THE AREA WILL BE LIGHT. THUS...ANY STORMS THAT DO DEVELOP LATER TODAY WILL BE SLOW MOVING AND PRODUCING LOCALLY HEAVY RAINFALL. RAINFALL FROM THUNDERSTORMS WILL AVERAGE 1/2 TO 1 INCH THROUGH EARLY THIS EVENING. ISOLATED HIGHER AMOUNTS OF 2 TO 4 INCHES ARE POSSIBLE. MARINERS SHOULD BE ALERT TO THUNDERSTORM DEVELOPMENT OVER THE BAYS AND COASTAL WATERS TODAY. THESE THUNDERSTORMS WILL LIKELY PRODUCE STRONG GUSTY WINDS IN EXCESS OF 35 KNOTS...HEAVY DOWNPOURS... FREQUENT CLOUD TO WATER LIGHTNING...AND BRIEF WATERSPOUTS. MARINERS AND OPERATORS OF SMALL CRAFT SHOULD BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AND MOVE TO PORT IF THUNDERSTORMS APPROACH. STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND UPDATES.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 4:46 AM CDT | Severe Thunderstorm Warning | HGX | Houston | 59 min |
| Jun 10, 5:12 AM CDT | Flash Flood Warning | HGX | Houston | 63 min |
| Jun 10, 5:12 AM CDT | Severe Thunderstorm Warning | HGX | Houston | 63 min |
| Jun 10, 5:31 AM CDT | Severe Thunderstorm Warning | HGX | Trinity | 59 min |
| Jun 10, 5:50 AM CDT | Severe Thunderstorm Warning | HGX | Madison | 55 min |
| Jun 10, 6:08 AM CDT | Severe Thunderstorm Warning | HGX | Polk, San Jacinto | 67 min |
| Jun 10, 10:14 AM CDT | Flash Flood Warning | HGX | Burleson, Washington | 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.