Alert archive / Texas / Flash Flood Warnings in 2007
Flash Flood Warning 21, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at May 28, 2007, 3:20 PM CDT for Brazoria County, Texas. It was in force for 115 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 28, 2007, 3:20 PM CDT (20:20 UTC)
- Expired
- May 28, 2007, 5:15 PM CDT
- In force
- 115 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Brazoria County, TX
The radar
The Houston radar (KHGX), 48 km from the middle of the area, began a volume at 20:21 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, 8.3 hours before the alert went out and 240 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
- 541 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 628 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KHGX 282022
FFWHGX
TXC039-282215-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
320 PM CDT MON MAY 28 2007
THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
BRAZORIA COUNTY IN SOUTHEAST TEXAS
* UNTIL 515 PM CDT
* AT 312 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL OVER CENTRAL
BRAZORIA COUNTY. THE THUNDERSTORMS ARE SHOWING LITTLE MOVEMENT
WITH RADAR INDICATING RAINFALL RATES OF 2 INCHES PER HOUR IN THIS
AREA.
* FLOODING IS EXPECTED IN OR NEAR...
ROSHARON...CHOCOLATE BAYOU...WILD PEACH VILLAGE...WEST COLUMBIA...
SWEENY...RICHWOOD...OYSTER CREEK...MANVEL...LIVERPOOL...LAKE
JACKSON...JONES CREEK...IOWA COLONY...HOLIDAY LAKES...HILLCREST...
DANBURY...CLUTE...BRAZORIA...BONNEY...ANGLETON AND ALVIN.
LAW ENFORCEMENT IN BRAZORIA COUNTY REPORTED FLOODING ALONG STATE
HIGHWAY 288 NEAR THE INTERSECTIONS OF FM HIGHWAY 523...AND COUNTY
ROADS 340 AND 341. FLOODING WAS ALSO REPORTED ALONG STATE HIGHWAY 35
NEAR WEST COLUMBIA.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL MAY CAUSE FLOODING OF LAND
ADJACENT TO SMALL CREEKS AND BAYOUS. ADDITIONALLY...FRONTAGE ROADS...
HIGHWAY UNDERPASSES...FARM-TO-MARKET AND OTHER SECONDARY ROADS MAY
FLOOD. AVOID LOCATIONS WHERE WATER COVERS THE GROUND
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
PLEASE REPORT SEVERE WEATHER TO THE COUNTY SHERIFF...LOCAL POLICE...
OR DEPARTMENT OF PUBLIC SAFETY. THEY WILL RELAY YOUR REPORT TO THE
NATIONAL WEATHER SERVICE.
LAT...LON 2912 9579 2885 9558 2912 9507 2955 9528
2952 9540
$$The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 6:30 AM CDT | Flash Flood Warning | HGX | Jackson | 60 min |
| May 28, 12:31 PM CDT | Marine Weather Statement | HGX | 7 hr | |
| May 28, 12:33 PM CDT | Flash Flood Warning | HGX | Brazoria, Harris | 3 hr |
| May 28, 3:01 PM CDT | Flash Flood Warning | HGX | Colorado | 119 min |
| May 28, 5:12 PM CDT | Flash Flood Warning | HGX | Brazoria | 2 hr |
Nearby
Flash Flood Warnings in Texas, 2007Every flash flood warning in 2007
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.