Alert archive / Texas / Flash Flood Warnings in 2000
Flash Flood Warning 17, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at Jul 1, 2000, 10:26 PM CDT for San Jacinto 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 outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Jul 1, 2000, 10:26 PM CDT (03:26 UTC)
- Expired
- Jul 2, 2000, 12:30 AM CDT
- In force
- 2 hr
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County San Jacinto County, TX
The radar
The Houston radar (KHGX), 116 km from the middle of the area, began a volume at 03:28 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
Lake Charles Mun, LA (KLCH), launched 00:00Z, 3.4 hours before the alert went out and 200 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
- 447 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 908 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KHGX 020330 FFWHGX TXC407-020630- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1026 PM CDT SAT JUL 1 2000 THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON TX HAS ISSUED A * FLASH FLOOD WARNING FOR... SAN JACINTO COUNTY IN SOUTHEAST TEXAS * UNTIL 1230 AM CDT * AT 1018 PM CDT...SAN JACINTO COUNTY EMERGENCY MANAGEMENT REPORTED FLOODING FROM HIGHWAY 190 TO HIGHWAY 150...BETWEEN EVERGREEN AND COLDSPRING. RADAR CONTINUES TO INDICATE VERY HEAVY RAINFALL BETWEEN EVERGREEN AND COLDSPRING AS THE STRONG THUNDERSTORM PERSISTS OVER THE AREA WITH VERY LITTLE MOVEMENT. DO NOT CROSS ANY LOCATION WHERE WATER COVERS THE ROAD! P$LEASE REPORT FLOODING TO THE COUNTY SHERIFF...LOCAL POLICE...OR DEPARTMENT OF PUBLIC SAFETY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE. LAT...LON 3045 9533 3038 9513 3061 9511 3063 9527
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 Jul 1, 8:35 PM CDT, 1 hour 51 minutes earlier.
Area forecast discussion, Jul 1, 8:35 PM CDT, 1 hour 51 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 835 PM CDT SAT JUL 1 2000 SCATTERED CONVECTION ONGOING NORTHEAST ZONES BUT EXPECT THIS TO DECREASE IN AREAL COVERAGE AND INTENSITY WITHIN THE NEXT HOUR. 00Z SURROUNDING SOUNDINGS CONTINUE TO INDICATE HIGH PW VALUES TO EAST (2.13 INCHES LCH) AND DECREASING TO THE W AND SW. WILL MAKE MINOR 1ST PERIOD ADJUSTMENTS AND STAY CLOSE TO CURRENT CONVECTIVE TREND AND rRUC GUIDANCE. .KHGX...NONE. 37/36 CLL BB 074/094 074/093 074 2232 (233 POPS NE) IAH BB 074/093 075/093 075 2222 GLS BB 080/089 080/089 080 2212
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 9:26 PM CDT | Severe Thunderstorm Warning | HGX | Liberty, Montgomery, San Jacinto | 34 min |
Nearby
Flash Flood Warnings in Texas, 2000Every flash flood warning in 2000
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.