Alert archive / Texas / Flash Flood Warnings in 2002
Flash Flood Warning 2, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at May 17, 2002, 6:56 AM CDT for Brazoria County, Galveston County, Harris 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 outline as issued.
The facts
- Issued
- May 17, 2002, 6:56 AM CDT (11:56 UTC)
- Expired
- May 17, 2002, 11:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
Counties Brazoria County, TX, Galveston County, TX, Harris County, TX
The radar
The Houston radar (KHGX), 9 km from the middle of the area, began a volume at 11:57 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, 11.9 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
- 2134 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 798 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 60 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 171156
FFWHOU
TXC039-167-201-171600-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
655 AM CDT FRI MAY 17 2002
THE NATIONAL WEATHER SERVICE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN HARRIS COUNTY IN SOUTHEAST TEXAS
NORTHERN BRAZORIA COUNTY IN SOUTHEAST TEXAS
GALVESTON COUNTY IN SOUTHEAST TEXAS
* UNTIL 1100 AM CDT
* AT 655 AM CDT...DOPPLER RADAR INDICATED VERY HEAVY RAINFALL
OCCURRING OVER HARRIS...GALVESTON...AND BRAZORIA COUNTIES. RADAR
ESTIMATES AND RAINGAGE REPORTS INDICATE 2 TO 5 INCHES HAS FALLEN
SOUTHEAST OF BELTWAY 8 OVER THE PAST 4 HOURS. AN ADDITIONAL 2 TO 4
INCHES OF RAIN IS EXPECTED THROUGH MID MORNING.
* FLOODING IS EXPECTED IN OR NEAR...
WEST UNIVERSITY PLACE...WEBSTER...TEXAS CITY...FRIENDSWOOD...
CLEAR LAKE CITY...SANTA FE...ALVIN...PEARLAND...HOBBY AIRPORT...
PASADENA...LA MARQUE...GALVESTON
DO NOT CROSS ANY LOCATION WHERE WATER COVERS THE ROAD
SMALL CREEKS...STREAMS...BAYOUS...UNDERPASSES...AND FEEDER ROADS MAY
FLOOD QUICKLY. AVOID LOCATIONS WATER COVERS THE GROUND
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 2984 9508 2952 9491 2931 9475 2904 9532
2931 9547 2979 9544The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 5:46 AM CDT | Special Marine Warning | HGX | 44 min | |
| May 17, 6:33 AM CDT | Special Marine Warning | HGX | 117 min | |
| May 17, 8:03 AM CDT | Special Marine Warning | HGX | 117 min | |
| May 17, 12:24 PM CDT | Flash Flood Warning | HGX | Houston | 3 hr |
| May 17, 3:26 PM CDT | Special Marine Warning | HGX | 2 hr | |
| May 17, 4:30 PM CDT | Special Marine Warning | HGX | 2 hr | |
| May 17, 4:44 PM CDT | Severe Thunderstorm Warning | HGX | Jackson | 31 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.