Alert archive / Texas / Flash Flood Warnings in 1996
Flash Flood Warning 20, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at Sep 27, 1996, 4:50 AM CDT for Liberty 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 counties it named.
The facts
- Issued
- Sep 27, 1996, 4:50 AM CDT (09:50 UTC)
- Expired
- Sep 27, 1996, 8:00 AM CDT
- In force
- 3 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 00:00Z, 9.8 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
- 1768 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 856 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.6
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, 3:15 AM CDT, 1 hour 35 minutes earlier.
Area forecast discussion, Sep 27, 3:15 AM CDT, 1 hour 35 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
315 AM CDT FRI SEP 27 1996
MASSIVE AFOS PROBLEMS AND VERY LIMITED DATA TO WORK WITH.
DUE TO DELAYS--WILL KEEP IT SHORT...VERY HEAVY RAINS HAVE OR ARE
STILL FALLING NORTH OF A MADISONVILLE-HUNTSVILLE-SHEPARD-LIVINGSTON
LINE. NESDIS RAINFALL ESTIMATIONS RANGING FROM 3 TO 6 INCHES. 88D
ESTIMATES RUNNING SHY BASED ON PRELIM REPORTS. APPEARS THAT
LIVINGSTON COUNTY MAY HAVE RECIEVED IN EXCESS OF 7 INCHES. CXO ASOS
REPORTED 0.41 INCH OF RAIN IN 5 MINUTES AT 315 AM. FRONT APPEARS TO
HAVE SLOWED DRAMATICALLY IN RESPONSE TO DIGGING S/W OVER THE ROCKIES.
THIS HAS PROMPTED A FLASH FLOOD WATCH FOR ALL OF SETX. SLUG OF
MOISTURE (PER WATER VAPOR) MOVING UP THE COAST TOWARD THE WATCH AREA
SO WOULD EXPECT REDEVELOPMENT/INTENSIFICATION TO THE SOUTH. FOR
FURTHER MET REASONING SEE SAT SFD. HIGH POPS WARRANTED FOR TODAY
WITH COOLER TEMPS DUE TO PRECIP AND CLOUD COVER. FRONT SHOULD MOVE
OFF THE COAST LATE AFTERNOON/EARLY EVENING...BUT PREFRONTAL ACTIVITY
WILL LIKELY CONFUSE THIS ISSUE. VERY STRONG OFFSHORE FLOW
TONIGHT/SATURDAY WILL REQUIRE A GALE WARNING FOR THE NEARSHORE WATERS.
THANKS SAT FOR THE BRIEFING AND ASSISTANCE...MUCH APPRECIATED!
45
DUE TO VERY LIMITED DATA
LOW CONFIDENCE ON THESE PRELIMS...
TEMP POP
CLL 85 5
IAH 86 8
GLS 87 8The 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, 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, 10:33 AM CDT | Flash Flood Warning | HGX | Liberty | 4 hr |
| 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.