Alert archive / Texas / Flash Flood Warnings in 2010

Flash Flood Warning 12, NWS Houston/Galveston, TX

July 1, 2010Brazoria County, Texas

NWS Houston/Galveston, TX issued this flash flood warning at Jul 1, 2010, 11:43 PM CDT for Brazoria 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 1, 2010, 11:43 PM CDT (04:43 UTC)
Expired
Jul 2, 2010, 2:45 AM CDT
In force
3 hr
Issued by
NWS Houston/Galveston, TX
Area
Storm-based polygon
Flood severity
None

County Brazoria County, TX

The radar

The Houston radar (KHGX), 48 km from the middle of the area, began a volume at 04:43 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.

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, 11:24 PM CDT, 19 minutes earlier.

Area forecast discussion, Jul 1, 11:24 PM CDT, 19 minutes before
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Hazardous weather outlook, Jul 1, 3:31 PM CDT, 8 hours 12 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
331 PM CDT THU JUL 1 2010

TXZ163-164-176>179-195>200-020800-
BRAZOS-BURLESON-GRIMES-HOUSTON-LIBERTY-MADISON-MONTGOMERY-POLK-
SAN JACINTO-TRINITY-WALKER-WASHINGTON-
331 PM CDT THU JUL 1 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...TONIGHT AND FRIDAY

WIDESPREAD SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED ACROSS
THE AREA AS A DEEP TROPICAL AIR MASS REMAINS OVER SOUTHEAST
TEXAS. SOME OF THE STRONGER THUNDERSTORMS WILL BE CAPABLE OF
PRODUCING SOME LOCALLY HEAVY RAINS. RAINFALL AMOUNTS TONIGHT WILL
AVERAGE BETWEEN A HALF AND ONE INCH WITH SOME HEAVIER TOTALS
BETWEEN 2 AND 3 INCHES. IN ADDITION TO THE THREAT OF HEAVY
RAINFALL ISOLATED FUNNEL CLOUDS AND TORNADOES WILL ALSO BE
POSSIBLE DUE TO THE TROPICAL AIR MASS OVER THE AREA.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

LINGERING TROPICAL MOISTURE WILL HELP TO KEEP A CHANCE OF RAIN IN
THE FORECAST THROUGH THE WEEKEND FOR SOUTHEAST TEXAS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME

GMZ330-335-350-355-370-375-020800-
GALVESTON BAY-MATAGORDA BAY-
WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL 20 NM TO 60 NM-
WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL OUT 20 NM-
WATERS FROM HIGH ISLAND TO FREEPORT 20 TO 60 NM-
WATERS FROM HIGH ISLAND TO FREEPORT OUT 20 NM-
331 PM CDT THU JUL 1 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

STRONG EAST WINDS WILL HELP MAINTAIN SEAS TO FROM 7 TO 10 FEET
NEAR SHORE AND 9 TO 12 FEET OFFSHORE. PERIODS OF SHOWERS AND
THUNDERSTORMS WILL PRODUCE BRIEF WIND GUSTS TO 35 KNOTS AND
POSSIBLY A FEW WATERSPOUTS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

TXZ210>214-226-227-235>238-020800-
AUSTIN-BRAZORIA-CHAMBERS-COLORADO-FORT BEND-GALVESTON-HARRIS-
JACKSON-MATAGORDA-WALLER-WHARTON-
331 PM CDT THU JUL 1 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

FLASH FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING.

WIDESPREAD SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED ACROSS
THE AREA AS A DEEP TROPICAL AIR MASS REMAINS OVER SOUTHEAST TEXAS.
SOME OF THE STRONGER THUNDERSTORMS WILL BE CAPABLE OF PRODUCING
LOCALLY HEAVY RAIN. ADDITIONAL RAINFALL AMOUNTS WILL AVERAGE 3 TO
5 INCHES WITH SOME ISOLATED TOTALS OF 6 TO 8 INCHES. IN ADDITION
TO THE THREAT OF HEAVY RAINFALL ISOLATED FUNNEL CLOUDS AND TORNADOES
WILL ALSO BE POSSIBLE DUE TO THE TROPICAL AIR MASS OVER THE AREA.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

LINGERING TROPICAL MOISTURE WILL HELP TO KEEP A CHANCE OF RAIN IN
THE FORECAST THROUGH THE WEEKEND FOR SOUTHEAST TEXAS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME

The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 1, 7:26 PM CDTAreal Flood AdvisoryHGXJackson, Matagorda, Wharton2 hr
Jul 1, 9:05 PM CDTRiver Flood WarningHGXBrazoria, Fort Bend, Wharton20 hr
Jul 1, 10:39 PM CDTAreal Flood AdvisoryHGXBrazoria, Matagorda111 min
Jul 1, 11:49 PM CDTAreal Flood AdvisoryHGXMatagorda116 min
Jul 2, 10:19 AM CDTAreal Flood AdvisoryHGXGrimes, Harris, Montgomery, Waller3 hr
Jul 2, 10:39 AM CDTAreal Flood AdvisoryHGXBrazoria, Jackson, Matagorda111 min
Jul 2, 11:36 AM CDTFlash Flood WarningHGXBrazoria114 min
Jul 2, 12:22 PM CDTFlash Flood WarningHGXMatagorda113 min
Jul 2, 12:32 PM CDTAreal Flood AdvisoryHGXHarris118 min
Jul 2, 1:27 PM CDTFlash Flood WarningHGXBrazoria3 hr
Jul 2, 1:47 PM CDTSevere Thunderstorm WarningHGXBrazoria, Fort Bend, Galveston, Harris28 min
Jul 2, 2:14 PM CDTSevere Thunderstorm WarningHGXBrazoria, Fort Bend, Galveston, Harris31 min
Jul 2, 2:17 PM CDTAreal Flood AdvisoryHGXBrazoria, Fort Bend, Harris3 hr
Jul 2, 2:33 PM CDTFlash Flood WarningHGXHarris3 hr
Jul 2, 3:33 PM CDTRiver Flood WarningHGXHarris6 days
Jul 2, 3:33 PM CDTRiver Flood WarningHGXHarris18 hr
Jul 2, 3:39 PM CDTRiver Flood WarningHGXBrazoria, Fort Bend17 hr
Jul 2, 3:54 PM CDTRiver Flood WarningHGXHarris17 hr
Jul 2, 4:32 PM CDTFlash Flood WarningHGXBrazoria, Fort Bend3 hr
Jul 2, 4:53 PM CDTRiver Flood WarningHGXHarris17 hr
Jul 2, 5:22 PM CDTFlash Flood WarningHGXHarris, Montgomery3 hr
Jul 2, 5:23 PM CDTRiver Flood WarningHGXGalveston, Harris6 days
Jul 2, 5:23 PM CDTRiver Flood WarningHGXGalveston, Harris16 hr
Jul 2, 5:42 PM CDTRiver Flood WarningHGXHarris15 hr
Jul 2, 6:24 PM CDTRiver Flood WarningHGXHarris15 hr
Jul 2, 6:30 PM CDTRiver Flood WarningHGXHarris15 hr

Nearby

Flash Flood Warnings in Texas, 2010Every flash flood warning in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.