Alert archive / Texas / Flash Flood Warnings in 1996
Flash Flood Warning 25, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at Sep 27, 1996, 10:33 AM CDT for Liberty County, Texas. It was in force for 4 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
- Sep 27, 1996, 10:33 AM CDT (15:33 UTC)
- Expired
- Sep 27, 1996, 2:30 PM CDT
- In force
- 4 hr
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Liberty County, TX
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 3.6 hours before the alert went out and 155 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
- 1499 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 581 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 164 m²/s²
- 0-3 km storm-relative helicity
- 182 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 4.6
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Sep 27, 10:05 AM CDT, 28 minutes earlier.
Area forecast discussion, Sep 27, 10:05 AM CDT, 28 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1005 AM CDT FRI SEP 27 1996 MASSIVE AFOS PROBLEMS AND VERY LIMITED DATA TO WORK WITH. COLD FRONT MOVING THRU SE TX THIS MORNING WITH PRE-FRONTAL ACTIVITY SPURRED BY WEAK DISTURBANCES IN THE UPPER FLOW KEEPING THINGS BUSY. EXPECT ALL THIS STUFF TO MOVE OFFSHORE BY LATE THIS AFTERNOON - AOA 3 TO 4 PM. (WE HOPE!) :O TO ALL USERS OF KHGX RADAR PRECIP ESTIMATES, WE ARE UNDERESTIMATING BY 50%. BUYER BEWARE!!! 41
In the hours before
Special weather statement, Sep 27, 6:35 AM CDT, 3 hours 58 minutes before
TXZ199-200-210-211-213-214-226-227-237-238-271720- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON TX 624 AM CDT FRI SEP 27 1996 THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH EFFECTIVE UNTIL 1 PM FOR THE FOLLOWING COUNTIES IN SOUTHEAST TEXAS: AUSTIN...BRAZORIA...COLORADO...MONTGOMERY...WHARTON...LIBERTY... CHAMBERS...HARRIS...FORTBEND...AND GALVESTON COUNTIES INCLUDING ADJACENT COASTAL WATERS. AN UPPER LEVEL DISTURBANCE COMBINED WITH A COLD FRONT MOVING THROUGH SOUTHERN PORTIONS OF SOUTHEAST TEXAS THIS MORNING WILL PRODUCE AN ENVIRONMENT WHERE SEVERE THUNDERSTORM DEVELOPMENT IS LIKELY. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE AND TORNADIC THUNDERSTORMS IN AND NEAR THE WATCH AREA. PERSONS IN THIS AREA ARE URGED TO MONITOR THE LATEST WEATHER DEVELOPMENTS AND BE PREPARED TO SEEK SAFE SHELTER SHOULD SEVERE WEATHER APPROACH THE AREA. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR FURTHER UPDATES.
Special weather statement, Sep 27, 6:38 AM CDT, 3 hours 55 minutes before
TXZ199-200-210>214-226-227-237-238-271720- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON TX 635 AM CDT FRI SEP 27 1996 THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH EFFECTIVE UNTIL 1 PM FOR THE FOLLOWING COUNTIES IN SOUTHEAST TEXAS: AUSTIN...BRAZORIA...COLORADO...MONTGOMERY...WHARTON...LIBERTY... CHAMBERS...HARRIS...WALLER...FORT BEND...AND GALVESTON COUNTIES INCLUDING ADJACENT COASTAL WATERS. AN UPPER LEVEL DISTURBANCE COMBINED WITH A COLD FRONT MOVING THROUGH SOUTHERN PORTIONS OF SOUTHEAST TEXAS THIS MORNING WILL PRODUCE AN ENVIRONMENT WHERE SEVERE THUNDERSTORM DEVELOPMENT IS LIKELY. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE AND TORNADIC THUNDERSTORMS IN AND NEAR THE WATCH AREA. PERSONS IN THIS AREA ARE URGED TO MONITOR THE LATEST WEATHER DEVELOPMENTS AND BE PREPARED TO SEEK SAFE SHELTER SHOULD SEVERE WEATHER APPROACH THE AREA. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR FURTHER UPDATES.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 26, 8:02 PM CDT | Flash Flood Warning | HGX | Madison | 3 hr |
| Sep 26, 9:01 PM CDT | Flash Flood Warning | HGX | Houston | 119 min |
| Sep 26, 10:32 PM CDT | Tornado Warning | HGX | Trinity | 58 min |
| Sep 26, 10:57 PM CDT | Flash Flood Warning | HGX | Houston, Madison, Trinity | 2 hr |
| Sep 26, 11:18 PM CDT | Severe Thunderstorm Warning | HGX | Polk | 57 min |
| Sep 27, 12:11 AM CDT | Severe Thunderstorm Warning | HGX | Polk, San Jacinto | 64 min |
| Sep 27, 1:12 AM CDT | Flash Flood Warning | HGX | San Jacinto, Walker | 3 hr |
| Sep 27, 1:12 AM CDT | Flash Flood Warning | HGX | Polk | 3 hr |
| Sep 27, 4:03 AM CDT | Severe Thunderstorm Warning | HGX | Liberty, San Jacinto | 57 min |
| Sep 27, 4:20 AM CDT | Flash Flood Warning | HGX | Polk, San Jacinto | 115 min |
| Sep 27, 4:38 AM CDT | Flash Flood Warning | HGX | Montgomery | 3 hr |
| Sep 27, 4:50 AM CDT | Flash Flood Warning | HGX | Liberty | 3 hr |
| Sep 27, 5:05 AM CDT | Severe Thunderstorm Warning | HGX | Liberty, Montgomery | 55 min |
| Sep 27, 5:54 AM CDT | Severe Thunderstorm Warning | HGX | Liberty, Montgomery | 66 min |
| Sep 27, 6:15 AM CDT | Flash Flood Warning | HGX | Polk, San Jacinto | 105 min |
| Sep 27, 6:39 AM CDT | Severe Thunderstorm Warning | HGX | Harris | 66 min |
| Sep 27, 6:50 AM CDT | Flash Flood Warning | HGX | Harris, Montgomery | 3 hr |
| Sep 27, 6:55 AM CDT | Severe Thunderstorm Warning | HGX | Liberty | 65 min |
| Sep 27, 7:54 AM CDT | Flash Flood Warning | HGX | Liberty | 3 hr |
| Sep 27, 9:38 AM CDT | Tornado Warning | HGX | Liberty | 67 min |
| Sep 27, 9:47 AM CDT | Flash Flood Warning | HGX | Harris, Montgomery | 3 hr |
| Sep 27, 9:56 AM CDT | Tornado Warning | HGX | Chambers, Galveston | 64 min |
| Sep 27, 12:09 PM CDT | Tornado Warning | HGX | Chambers | 66 min |
| Sep 27, 12:20 PM CDT | Flash Flood Warning | HGX | Chambers, Harris | 4 hr |
| Sep 27, 1:57 PM CDT | Severe Thunderstorm Warning | HGX | Chambers, Galveston | 48 min |
Nearby
Flash Flood Warnings in Texas, 1996Every flash flood warning in 1996
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.