Alert archive / Texas / Flash Flood Warnings in 2004
Flash Flood Warning 58, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at Jul 31, 2004, 12:50 AM CDT for Brazos County, Grimes 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
- Jul 31, 2004, 12:50 AM CDT (05:50 UTC)
- Expired
- Jul 31, 2004, 3:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
Counties Brazos County, TX, Grimes County, TX
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 5.8 hours before the alert went out and 271 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
- 1617 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1183 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.1
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 31, 12:25 AM CDT, 25 minutes earlier.
Area forecast discussion, Jul 31, 12:25 AM CDT, 25 minutes before
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</html>Hazardous weather outlook, Jul 31, 12:35 AM CDT, 15 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1235 AM CDT SAT JUL 31 2004 TXZ163-164-176>179-195>200-210>214-226-227-235>238-311200- AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND-GALVESTON- GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-MADISON-MATAGORDA-MONTGOMERY- POLK-SAN JACINTO-TRINITY-WALKER-WALLER-WASHINGTON-WHARTON- 1235 AM CDT SAT JUL 31 2004 ...LOCALLY HEAVY RAINFALL POSSIBLE TONIGHT ACROSS NORTHERN PORTIONS OF SOUTHEAST TEXAS... .DAY ONE...TONIGHT. AN UPPER LEVEL DISTURBANCE WILL COMBINE WITH A VERY MOIST AIRMASS AND WEAK MID-LEVEL WINDS TO CONTINUE TO TRIGGER SLOW MOVING SHOWERS AND THUNDERSTORMS ACROSS NORTHERN PORTIONS OF SOUTHEAST TEXAS TONIGHT. AVERAGE RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE EXPECTED WITH SOME ISOLATED TOTALS OF 3 TO 5 INCHES POSSIBLE. THE HEAVY RAINFALL THREAT AREA IS ALONG AND NORTH OF A BRENHAM TO HUNTSVILLE TO LIVINGSTON LINE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. HAZARDOUS WEATHER IS NOT ANTICIPATED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 3:30 AM CDT | Flash Flood Warning | HGX | Grimes | 2 hr |
Nearby
Flash Flood Warnings in Texas, 2004Every flash flood warning in 2004
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.