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Hazardous Weather Outlook


Hazardous Weather Outlook...UPDATED
National Weather Service Corpus Christi TX
552 PM CDT Wed Aug 23 2017

GMZ230-235-250-255-270-275-TXZ229>234-239>247-242300-
Bays and Waterways from Baffin Bay to Port Aransas-
Bays and Waterways from Port Aransas to Port O`Connor-
Coastal waters from Baffin Bay to Port Aransas out 20 NM-
Coastal waters from Port Aransas to Matagorda Ship Channel out
20 NM-Waters from Baffin Bay to Port Aransas from 20 to 60 NM-
Waters from Port Aransas to Matagorda Ship Channel from 20 to
60 NM-La Salle-McMullen-Live Oak-Bee-Goliad-Victoria-Webb-Duval-
Jim Wells-Kleberg-Nueces-San Patricio-Aransas-Refugio-Calhoun-
552 PM CDT Wed Aug 23 2017

This hazardous weather outlook is for South Texas and the Middle
Texas Coastal Waters.

.DAY ONE...Tonight

A Hurricane Watch is in effect for the Coastal Bend and Victoria
Crossroads. A separate Storm Surge Watch is in effect for the
Coastal Counties.

Isolated thunderstorms are expected this evening over portions of
South Texas. Additional isolated to scattered thunderstorms are
expected near the Coast Tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

A Hurricane Watch is in effect for the Coastal Bend and Victoria
Crossroads until Saturday morning. A separate Storm Surge Watch is
in effect for the Coastal Counties until Friday afternoon.

Heavy rainfall expected Friday through Saturday over the Coastal
Bend and Victoria Crossroads, which may cause widespread flash
flooding.

Maximum Heat Index values 105 to 109 degrees over South Texas
Thursday afternoon.

Isolated to scattered thunderstorms are expected Sunday and
Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation not anticipated at this time.

$$

87

Hazardous Weather Outlook
National Weather Service Houston/Galveston TX
539 AM CDT Wed Aug 23 2017

GMZ330-335-350-355-370-375-TXZ163-164-176>179-195>200-210>214-226-
227-235>238-241045-
Austin-Brazoria-Brazos-Burleson-Chambers-
Coastal waters from Freeport to the Matagorda Ship Channel out
20 NM-Coastal waters from High Island to Freeport out 20 NM-
Colorado-Fort Bend-Galveston-Galveston Bay-Grimes-Harris-Houston-
Jackson-Liberty-Madison-Matagorda-Matagorda Bay-Montgomery-Polk-
San Jacinto-Trinity-Walker-Waller-Washington-
Waters from Freeport to the Matagorda Ship Channel from 20 to
60 NM-Waters from High Island to Freeport from 20 to 60 NM-
Wharton-
539 AM CDT Wed Aug 23 2017

This hazardous weather outlook is for portions of Southeast Texas..

.DAY ONE...Today and Tonight

The National Hurricane Center is continuing to monitor the remnants
of tropical system Harvey, which is currently located over the
eastern Bay of Campeche, and is expected to move northwestward
over the western Gulf of Mexico. Environmental conditions are
favorable for development, and a tropical depression or tropical
storm is very likely to form today or tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

The tropical system will move into the northwestern Gulf of
Mexico on Friday, and possibly slow down over the region. A slow
moving tropical system such as this can produce copious tropical
rainfall amounts. In the past, slow moving tropical systems have
produced amounts in excess of 20 inches leading to widespread
dangerous flooding. Tropical storm to hurricane force winds could
be possible, as well as tornadoes and storm surge. High tides
along the upper Texas Coast will likely cause impacts from
dangerous rip currents to storm surge flooding. The range of
possibilities with storm surge are varied given the highly
uncertain track of this system. Evacuations may be possible.

Marine impacts will include high winds and large dangerous seas
possible by Friday again depending on the strength and track of
the system.

Persons in Southeast Texas should be monitoring the weather
closely.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is likely at some point between Thursday night
and Monday.

$$

Hazardous Weather Outlook
National Weather Service Brownsville TX
646 PM CDT Wed Aug 23 2017

GMZ130-132-135-150-155-170-175-242100-
Laguna Madre from the Port of Brownsville to the Arroyo Colorado-
Laguna Madre from the Arroyo Colorado To 5 NM north of Port
Mansfield TX-
Laguna Madre from 5 nm north of Port Mansfield to Baffin Bay TX-
Coastal waters from Port Mansfield to the Rio Grande out 20 nm-
Coastal waters from Baffin Bay to Port Mansfield out 20 nm-
Waters from Port Mansfield to the Rio Grande extending from 20 to
60 nm-
Waters from Baffin Bay to Port Mansfield extending from 20 to
60 nm-
646 PM CDT Wed Aug 23 2017

This Hazardous Weather Outlook is for portions of The Gulf of
Mexico and The Laguna Madre.

.DAY ONE...Tonight

A TROPICAL STORM WATCH IS IN EFFECT SOUTH OF PORT MANSFIELD FOR
THE LAGUNA MADRE AND GULF OF MEXICO WATERS EAST OF PADRE ISLAND
FROM 0 TO 60 NAUTICAL MILES OFFSHORE.

A HURRICANE WATCH IS IN EFFECT NORTH OF PORT MANSFIELD FOR THE
LAGUNA MADRE AND GULF OF MEXICO WATERS EAST OF PADRE ISLAND FROM
0 TO 60 NAUTICAL MILES OFFSHORE.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

THE TROPICAL STORM WATCH FOR SOUTH OF PORT MANSFIELD FOR THE
LAGUNA MADRE AND GULF OF MEXICO WATERS EAST OF PADRE ISLAND FROM
0 TO 60 NAUTICAL MILES OFFSHORE WILL REMAIN IN EFFECT UNTIL 6 PM
CDT FRIDAY.

THE HURRICANE WATCH FOR NORTH OF PORT MANSFIELD FOR THE LAGUNA
MADRE AND GULF OF MEXICO WATERS EAST OF PADRE ISLAND FROM 0 TO
60 NAUTICAL MILES OFFSHORE WILL REMAIN IN EFFECT UNTIL 6 PM CDT
FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED.

$$

Hazardous Weather Outlook
National Weather Service Brownsville TX
646 PM CDT Wed Aug 23 2017

TXZ248>257-242100-
Zapata-Jim Hogg-Brooks-Kenedy-Starr-Hidalgo-Inland Willacy-
Inland Cameron-Coastal Willacy-Coastal Cameron-
646 PM CDT Wed Aug 23 2017

This Hazardous Weather Outlook is for portions of Deep South
Texas.

.DAY ONE...Tonight

A TROPICAL STORM WATCH IS IN EFFECT FOR THE COASTAL PORTIONS OF
CAMERON AND WILLACY COUNTIES.

A HURRICANE WATCH IS IN EFFECT FOR KENEDY COUNTY.

A STORM SURGE WATCH IS IN EFFECT FOR PADRE ISLAND NORTH OF PORT
MANSFIELD.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

THE TROPICAL STORM WATCH WILL REMAIN IN EFFECT FOR THE COASTAL
PORTIONS OF CAMERON AND WILLACY COUNTIES UNTIL 6 PM CDT FRIDAY.

THE HURRICANE WATCH WILL REMAIN IN EFFECT FOR KENEDY COUNTY UNTIL
6 PM CDT FRIDAY.

THE STORM SURGE WATCH WILL REMAIN IN EFFECT FOR PADRE ISLAND
NORTH OF PORT MANSFIELD UNTIL 6 PM CDT FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED.

$$

Hazardous Weather Outlook...UPDATED
National Weather Service Austin/San Antonio TX
446 PM CDT Wed Aug 23 2017

TXZ171>173-183>194-202>209-217>225-228-242200-
Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera-
Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Lee-Kinney-Uvalde-
Medina-Bexar-Comal-Guadalupe-Caldwell-Fayette-Maverick-Zavala-
Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca-Dimmit-
446 PM CDT Wed Aug 23 2017

This Hazardous Weather Outlook is for South-Central Texas..

.DAY ONE...Tonight.

Evening scattered thunderstorms are expected across the Hill
Country and Edwards Plateau, where isolated heavy rain and gusty
winds of 30 to 40 mph are possible as a frontal boundary stalls
over the region.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Harvey is expected to move to the northwest and approach the
Texas coast Friday. The tropical system will bring tropical storm
winds and heavy rain across South Central Texas beginning Friday
and continuing into the weekend. There is a Tropical Storm Watch
for counties east of Interstate 35. Flash flooding and river
flooding is possible, mainly across the Tropical Storm Watch area.
Please refer to the NHC website (www.nhc.noaa.gov) and our local
office website (www.weather.gov/sanantonio) for latest information
and to follow the evolution of Harvey as it gets closer to the
Texas coast.

As of now, the storm total rainfall amounts of 6 to 10 inches are
expected east of Interstate 35 with isolated 12 inches across
counties in the Tropical Storm Watch from Friday afternoon through
Monday afternoon. It should be stressed that there is the
potential for much higher amounts across South Central Texas as
they will be highly dependent on the track and intensity of
Harvey.

There is a good chance for the issuance of a Flash Flood Watch
later tonight (overnight weather package) as the result of
rainfallamounts increasing. The FFW is likely for the areas
under the Tropical Storm Watch.

There is a low risk of brief tornadoes east of Interstate 35 Friday
evening into the weekend associated with tropical rain bands.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time. However,
weather reports are welcome during the event on Friday into the
weekend.

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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