Alert archive / Texas / Flash Flood Watches in 2007

Flash Flood Watch 5, NWS Brownsville, TX

July 2, 20075 counties in Texas

NWS Brownsville, TX issued this flash flood watch at Jul 2, 2007, 12:14 AM CDT for 5 counties in Texas. It took effect at Jul 2, 2007, 7:00 AM CDT. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Jul 2, 2007, 12:14 AM CDT (05:14 UTC)
In effect from
Jul 2, 2007, 7:00 AM CDT
Expired
Jul 3, 2007, 1:00 AM CDT
In force
18 hr
Issued by
NWS Brownsville, TX
Flood severity
None

Counties Brooks County, TX, Hidalgo County, TX, Jim Hogg County, TX, Starr County, TX, Zapata County, TX

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 00:00Z, 5.2 hours before the alert went out and 156 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.

Skew-T log-pSkew-T log-p diagram, Brownsville Intl, TX at 00:00Z on 2007-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2936 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brownsville Intl, TX at 00:00Z on 2007-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2936 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
809 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
54 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Brownsville, TX wrote its last area forecast discussion before this flash flood watch went out at Jul 1, 11:30 PM CDT, 44 minutes earlier.

Area forecast discussion, Jul 1, 11:30 PM CDT, 44 minutes before
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Hazardous weather outlook, Jul 1, 9:30 PM CDT, 2 hours 44 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE BROWNSVILLE TX
930 PM CDT SUN JUL 1 2007

TXZ248>257-021100-
ZAPATA-JIM HOGG-BROOKS-KENEDY-STARR-HIDALGO-INLAND WILLACY-
INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON-
930 PM CDT SUN JUL 1 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR DEEP SOUTH TEXAS.

.DAY ONE...TONIGHT.

SLOW MOVING SHOWERS AND THUNDERSTORMS...PRODUCING HEAVY RAINFALL...
WILL CONTINUE OVER ZAPATA...JIM HOGG...AND STARR COUNTY TONIGHT.
FLASH FLOODING IS LIKELY IN PORTIONS OF THESE COUNTIES. MOTORISTS
ARE URGED TO DRIVE WITH EXTREME CAUTION.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

A CHANCE FOR SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE
MIDDLE WEEK. THE STRONGER STORMS WILL PRODUCE HEAVY RAINFALL WITH
LOCALIZED FLOODING REMAINING POSSIBLE THROUGH THE WEEK.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS SHOULD REPORT ANY FLOODING OR WIND DAMAGE IN
ZAPATA...JIM HOGG...AND STARR COUNTY...TO THE NATIONAL WEATHER
SERVICE IN BROWNSVILLE TONIGHT.

In the hours before

Local storm report, Jul 1, 8:17 PM CDT, 3 hours 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
817 PM CDT SUN JUL 01 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0745 PM     DOWNBURST        EL SAUZ                 26.57N 98.87W
07/01/2007                   STARR              TX   TRAINED SPOTTER

            TRAINED SPOTTER AT AEROSTAT IN EL SAUZ REPORTED TWO TREES
            FELLED BY MEASURED WINDS OF 61.8 KNOTS. EACH TREE 1 FOOT
            IN DIAMETER AND 20 FEET TALL. ALSO MARBLE SIZE HAIL.

&&

TOMASELLI
Local storm report, Jul 1, 8:40 PM CDT, 3 hours 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
840 PM CDT SUN JUL 01 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0839 PM     FUNNEL CLOUD     1 N RIO GRANDE CITY     26.39N 98.83W
07/01/2007                   STARR              TX   LAW ENFORCEMENT

            DPS TROOPER REPORTED FUNNEL CLOUD 1 MILE NORTH OF RIO
            GRANDE CITY ON 3167.

&&

TOMASELLI
Local storm report, Jul 1, 9:08 PM CDT, 3 hours 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
908 PM CDT SUN JUL 01 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0906 PM     FLASH FLOOD      EL SAUZ                 26.57N 98.87W
07/01/2007                   STARR              TX   LAW ENFORCEMENT

            DPS TROOPER REPORTS 6 INCHES TO 1 FOOT OF WATER ON 3167
            NEAR EL SAUZ.

&&

TOMASELLI
Local storm report, Jul 1, 9:48 PM CDT, 2 hours 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
948 PM CDT SUN JUL 01 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0945 PM     FLASH FLOOD      RIO GRANDE CITY         26.38N 98.83W
07/01/2007                   STARR              TX   LAW ENFORCEMENT

            RIO GRANDE CITY LAW ENFORCEMENT REPORTS WATER INSIDE
            HOMES FROM FLOODING IN THE LAS LOMAS AND LOS TREVINOS
            SUBDIVISIONS.

&&

TOMASELLI
Local storm report, Jul 1, 10:40 PM CDT, 1 hour 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1040 PM CDT SUN JUL 01 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1038 PM     FLASH FLOOD      RIO GRANDE CITY         26.38N 98.83W
07/01/2007                   STARR              TX   DEPT OF HIGHWAYS

            TX DOT REPORTS TWO FEET OF WATER ON EXPRESSWAY 83 IN RIO
            GRANDE CITY.

1038 PM     FLASH FLOOD      RIO GRANDE CITY         26.38N 98.83W
07/01/2007                   STARR              TX   DEPT OF HIGHWAYS

            TX DOT REPORTS 5 FEET OF WATER ON EMBASSY ROAD, HERNANDEZ
            ROAD, AND ROCA GUERRA ROAD IN RIO GRANDE CITY. ALSO ONE
            FOOT OF WATER IN HOMES ON THESE ROADS.

&&

TOMASELLI
Local storm report, Jul 1, 11:15 PM CDT, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1115 PM CDT SUN JUL 01 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1109 PM     FLASH FLOOD      5 E ROMA                26.41N 98.92W
07/01/2007                   STARR              TX   LAW ENFORCEMENT

            THE ROMA POLICE DEPARTMENT REPORTED WATER IN HOUSES AND
            FLOODING ON U.S. HIGHWAY 83 AT GARCENO. ONLY THE CENTER
            LANE OF U.S. HIGHWAY 83 WAS VISIBLE.

&&

BMILLER

The office that day

Everything else NWS Brownsville, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 1, 7:14 PM CDTFlash Flood WarningBROStarr, Zapata2 hr
Jul 1, 7:14 PM CDTFlash Flood WarningBROStarr, Zapata2 hr
Jul 1, 7:46 PM CDTFlash Flood WarningBROZapata119 min
Jul 1, 8:22 PM CDTSevere Thunderstorm WarningBROStarr53 min
Jul 1, 8:40 PM CDTTornado WarningBROStarr50 min
Jul 1, 8:55 PM CDTFlash Flood WarningBROStarr, Zapata2 hr
Jul 1, 9:22 PM CDTSevere Thunderstorm WarningBROStarr53 min
Jul 1, 9:28 PM CDTFlash Flood WarningBROJim Hogg, Zapata2 hr
Jul 1, 10:57 PM CDTFlash Flood WarningBROStarr, Zapata3 hr
Jul 1, 11:22 PM CDTFlash Flood WarningBROJim Hogg113 min

Nearby

Flash Flood Watches in Texas, 2007Every flash flood watch 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.