Alert archive / Texas / Flash Flood Warnings in 2002
Flash Flood Warning 49, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at Oct 24, 2002, 3:31 PM CDT for Brazoria County, Fort Bend County, Harris County, Texas. It was in force for 119 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 24, 2002, 3:31 PM CDT (20:31 UTC)
- Expired
- Oct 24, 2002, 5:30 PM CDT
- In force
- 119 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
Counties Brazoria County, TX, Fort Bend County, TX, Harris County, TX
The radar
The Houston radar (KHGX), 40 km from the middle of the area, began a volume at 20:31 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 12:00Z, 8.5 hours before the alert went out and 218 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
- 17 J/kg
- Mixed-layer CIN
- -136 J/kg
- Mixed-layer LCL
- 527 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 81 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 242031
FFWHOU
TXC039-157-201-242230-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
325 PM CDT THU OCT 24 2002
THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
HARRIS COUNTY IN SOUTHEAST TEXAS
FORT BEND COUNTY IN SOUTHEAST TEXAS
BRAZORIA COUNTY IN SOUTHEAST TEXAS
* UNTIL 530 PM CDT
* AT 325 PM CDT...DOPPLER RADAR INDICATED VERY HEAVY RAINFALL
EXTENDING FROM IOWA COUNTY TO CLEAR LAKE TO BAYTOWN. THIS AREA OF
PRECIPITATION IS MOVING NORTH AROUND 10 MPH. ADDITIONAL HEAVY RAIN
WILL BE MOVING INTO THE REGION FROM THE WEST THROUGH THE PERIOD.
RAINFALL RATES IN EXCESS OF 2 INCHES PER HOUR WILL LIKELY CAUSE
FLOODING DUE TO RUNOFF FROM THE SATURATED GROUNDS. AN OFF DUTY
WEATHER SERVICE EMPLOYEE IS REPORTING WATER WITHIN 2 FEET OF
ENTERING SOME HOMES IN THE PEARLAND AREA.
* FLOODING IS EXPECTED IN OR NEAR...
THE HOUSTON METROPOLITAN AREA...AND MANY PORTIONS OF BRAZORIA
COUNTY INCLUDING PEARLAND.
DO NOT CROSS ANY LOCATION WHERE WATER COVERS THE ROAD
PLEASE 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 3008 9510 2979 9495 2960 9501 2953 9524
2917 9513 2888 9557 2914 9581 2931 9585
2966 9600 2987 9571 3007 9581 3008 9535
3004 9530 3008 9520The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 24, 3:36 PM CDT | Flash Flood Warning | HGX | Brazoria, Fort Bend, Harris | 114 min |
| Oct 24, 3:36 PM CDT | Special Marine Warning | HGX | 114 min | |
| Oct 24, 4:56 PM CDT | Special Marine Warning | HGX | 2 hr | |
| Oct 24, 5:28 PM CDT | Flash Flood Warning | HGX | Brazoria, Galveston, Harris | 2 hr |
| Oct 24, 5:43 PM CDT | Special Marine Warning | HGX | 92 min |
Nearby
Flash Flood Warnings in Texas, 2002Every flash flood warning in 2002
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.