Thursday, August 24, 2017

Aug. 24 17

Northwest Houston, TX, during the early morning.
Northwest Houston, TX, during the late afternoon.
Northwest Houston, TX, during the early evening.


Summary: The day was hot, mostly cloudy, and mostly dry. Isolated mostly light with a few moderate to moderately heavy and maybe some heavy showers and possible thunderstorms pass from east to west Houston, TX, during the morning, afternoon, evening, and night. I felt a few light rain drops, while I was at work in northwest Houston, TX, during the late afternoon, I think, I am pretty sure. Alto stratus, stratus and stratocumulus clouds looked to cover most of the sky, during the morning afternoon, evening, and maybe night. The wind speeds looked to be calm with gentle to moderate gusts with some moderately strong and really strong gusts. It felt warm, during the early morning, evening, and night. It felt very warm, maybe hot, during the mid-morning. It felt very hot, during the late morning, early and mid-afternoon. It felt very hot, becoming warm, during the late afternoon. There were a number of tropical weather warnings, alerts, and statements, along with a Hazardous Weather Outlook, for the Houston, TX area, issued by NOAA. The low temps looked to be in the 70's with maybe some 80's and the high temps looked to be in the 90's with maybe some 80's, for the Houston, TX area.


Storm Summary: There were no reports of flooding, or storm damages anywhere in, or near the Houston, TX area, that I know of.


My Storm Summary: The roads and ground looked to be wet from a recent shower on my way and at work, in northwest Houston, TX, during the early morning. I felt and saw a few rain drops, during the late afternoon, I think, I am pretty sure. The roads looked to be wet, near where I work in northwest Houston, TX, on my way home, during the late afternoon. I didn't see any flooding, or storm damages. I didn't hear any thunder, or see any lightning strikes.


Locations: Northwest Houston, TX.


Thoughts: Well another tropical system is expected to impact the Houston, TX area, again this year. It is only a matter of hours before Houston, TX should be starting to get some real impacts from Hurricane Harvey.


Area Forecast Discussion 
Issued by NWS Houston/Galveston, TX

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000
FXUS64 KHGX 250343
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1043 PM CDT Thu Aug 24 2017

.DISCUSSION...
...Devastating and life threatening flooding expected from a
prolonged heavy rain and flooding threat from Harvey...

Harvey has undergone an eyewall replacement and the rapid
intensification slowing. One of Harvey`s spiral bands moving into
the coastal areas around 1030 pm this evening. Winds gradually
increasing this evening and expect seas to build quickly overnight
becoming dangerous Friday. Showers should become more numerous
toward morning along with gustier winds across the inland areas.

Harvey track only has very minor changes with no significant
changes to the forecast for Southeast Texas with this update.


Hurricane Center intends to start hour position updates at
midnight.

45

&&

.PREV DISCUSSION... /ISSUED 627 PM CDT Thu Aug 24 2017/

AVIATION...
A bit more coverage across SE TX this afternoon/evening as act-
ivity associated with Hurricane Harvey begins to move into the
region. Timing these bands will be the main issue for the over-
night hours, but did try to incorporate a brief break in spots
for most sites except for GLS. Otherwise...did go with prevail-
ing TSRA and increased winds/gusts by tomorrow afternoon. 41

PREV DISCUSSION... /ISSUED 559 PM CDT Thu Aug 24 2017/

.Devastating and life-threatening flooding expected from a
prolonged heavy rain and flash flood threat from Harvey...

The outer rain bands of Hurricane Harvey were already affecting
Southeast Texas at 5:00 PM. These will continue to affect the
area tonight and Friday. Squalls with heavy rainfall are expected
to become more numerous along the coast Friday morning and then
spread inland during the day. Squalls and rain bands will then
become more numerous and spread inland Friday night and Saturday
as Harvey moves onshore down the coast--somewhere on the middle
Texas coast.

Models continue to show the circulation of Harvey caught up in the
weakness in the upper subtropical high pressure ridge over the
weekend and into early next week. With the storm or its remnants
persisting near or over the area, a prolonged heavy rainfall and
flash flood threat could lead to devastating flooding. There is a
potential for five-day rainfall totals between tonight and Tuesday
morning of 15 to 25 inches with even higher isolated amounts.
Needless to say, persons throughout Southeast Texas should monitor
the latest bulletins and forecasts regarding the storm.

Upped rain chances across the area during the middle part of the
upcoming week. The models show upper levels point conducive for
an unstable and moist airmass overhead of Southeast Texas through
Wednesday and Thursday.

40

MARINE...
As has been discussed earlier today, deteriorating marine
conditions can be expected tonight and Friday as Hurricane Harvey
approaches the middle Texas coast. Swells from the storm will
start this afternoon and build to 7 feet or more tonight. This
will be followed by a continued wind, sea, surge, and tide
increase into the landfall of the storm. Water levels, seas, and
winds will likely remain elevated well into the first part of the
upcoming week as Harvey or its remnants remain near or just inland
of the Texas coast.

Here are the best estimates of marine-related impacts and decision
points based on what we know as of 5:00 PM:

* Onset of 7+ foot seas -- Tonight
* Onset of tropical storm force winds within 20 NM -- daytime
  Friday (especially west of Freeport)
* Onset of coastal flood threat -- Friday
* Reasonable worst case surge -- 7 to 11 feet above ground near
  landfall, 3 to 5 feet from San Luis Pass to High Island
* High risk of rip currents and building surf beginning tonight
* Discharge from elevated rivers and continued elevated water
  levels may continue to impact navigation through the weekend
  through early next week.

47/40

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)      75  90  75  81  73 /  40  50  60  80  70
Houston (IAH)              77  86  77  81  75 /  40  60  80  80  80
Galveston (GLS)            79  85  79  84  79 /  60  80  80  80  80

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...Hurricane Warning for the following zones: Jackson...Matagorda.

     Tropical Storm Warning for the following zones: Austin...
     Brazoria...Chambers...Colorado...Fort Bend...Galveston...
     Harris...Liberty...Waller...Wharton.

     Flash Flood Watch from 4 AM CDT Friday through Monday morning
     for the following zones: Austin...Brazoria...Brazos...
     Burleson...Chambers...Colorado...Fort Bend...Galveston...
     Grimes...Harris...Jackson...Liberty...Matagorda...
     Montgomery...Waller...Washington...Wharton.

GM...Hurricane Warning for the following zones: Coastal waters from
     Freeport to the Matagorda Ship Channel out 20 NM...
     Matagorda Bay...Waters from Freeport to the Matagorda Ship
     Channel from 20 to 60 NM.

     Tropical Storm Warning for the following zones: Coastal waters
     from High Island to Freeport out 20 NM...Galveston Bay...
     Waters from High Island to Freeport from 20 to 60 NM.

&&

$$

Discussion...45...8...11...31...33

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Houston/Galveston TX
624 AM CDT Thu Aug 24 2017

TXZ200-213-214-226-227-237-238-251130-
Brazoria-Chambers-Fort Bend-Galveston-Harris-Liberty-Wharton-
624 AM CDT Thu Aug 24 2017

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

TROPICAL STORM WARNING IS IN EFFECT THROUGH SATURDAY

.DAY ONE...Today and Tonight

Tropical Storm Harvey is located in the south central Gulf of Mexico.
Harvey strengthening as he moves northwest towards the Texas coast.
Low to moderate chances for periods of scattered showers and thunderstorms
through the early Friday morning hours as outer bands of Harvey come
ashore.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Tropical storm force winds may occur along the Brazoria County
coastline as early as late Friday afternoon and persist through
Saturday afternoon. Gusty...primarily under tropical force
winds...will likely spread inland early Saturday morning and
persist through early Saturday afternoon.

Storm surge heights will range from between 2 to 4 feet above
ground level with rising water levels occurring from as early as
late tonight and persisting through Saturday.

Total rainfall amounts over the next several days will range from
a little over 10 inches to localized near 15 inch amounts that may
induce significant flooding concerns.

Isolated tornadoes will also be possible within Harvey`s outer rain
and storm bands...with the tornado threat increasing latter tonight
and persisting through Saturday afternoon.

Harvey is forecast to slowly meander across southeastern Texas through
mid week. This slow storm movement increases the probability of a
higher frequency of heavy rainfall episodes that will only exacerbate
areawide flooding.

.SPOTTER INFORMATION STATEMENT...
Spotters will be needed from today through the weekend.

$$

Hurricane Local Statement

Hurricane Harvey Local Statement Advisory Number 19
TXZ163-164-176>179-195>200-210>214-226-227-235>238-251145-

Hurricane Harvey Local Statement Advisory Number 19
National Weather Service Houston/Galveston TX  AL092017
1036 PM CDT Thu Aug 24 2017

This product covers Southeast Texas

**HARVEY EXPECTED TO STRENGTHEN AS IT MOVES TOWARDS THE TEXAS COAST**


NEW INFORMATION
---------------

* CHANGES TO WATCHES AND WARNINGS:
    - None

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Warning and Storm Surge Watch are in effect
      for Chambers and Harris
    - A Tropical Storm Warning is in effect for Austin, Colorado,
      Fort Bend, Liberty, Waller, and Wharton
    - A Storm Surge Warning and Hurricane Warning are in effect for
      Jackson and Matagorda
    - A Storm Surge Warning and Tropical Storm Warning are in effect
      for Brazoria and Galveston

* STORM INFORMATION:
    - About 280 miles south of Galveston TX
    - 25.2N 94.6W
    - Storm Intensity 85 mph
    - Movement Northwest or 315 degrees at 10 mph

SITUATION OVERVIEW
------------------

Category 1 Harvey is forecast to continue strengthening and will
most likely become a major hurricane before it makes landfall
somewhere along the Middle Texas Coast Friday. The primary impact from
Harvey still remains very high rainfall amounts that will induce
extreme widespread flooding across southeastern Texas. Tropical storm
force winds, with occasional hurricane force wind gusts, and storm
surge will occur along the coast as early as late Friday afternoon and
persist through Tuesday. Harvey`s wind field has expanded, and
therefore higher storm surge can be expected along the Upper Texas
coastline. Coastal flooding will remain an issue throughout the
weekend and possibly into next week as strong onshore winds will keep
water piled up along the coastline. Again, the primary emphasis is on
the high rainfall amounts that will likely lead to widespread and
prolonged flash flooding.

POTENTIAL IMPACTS
-----------------

* FLOODING RAIN:
Protect against life-threatening rainfall flooding having possible
devastating impacts across much of southeast Texas. The highest threat
is for areas along and south of a Columbus to Houston line. Potential
impacts include:
    - Extreme rainfall flooding may prompt numerous evacuations and
      rescues.
    - Rivers and tributaries may overwhelmingly overflow their banks
      in many places with deep moving water. Small streams, creeks,
      canals, and ditches may become raging rivers. Flood control
      systems and barriers may become stressed.
    - Flood waters can enter numerous structures within multiple
      communities, some structures becoming uninhabitable or washed
      away. Numerous places where flood waters may cover escape
      routes. Streets and parking lots become rivers of raging water
      with underpasses submerged. Driving conditions become very
      dangerous. Numerous road and bridge closures with some weakened
      or washed out.

Protect against life-threatening rainfall flooding having possible
limited to extensive impacts across areas north of Columbus to Houston.

* SURGE:
Protect against life-threatening surge having possible devastating
impacts across the entire Upper Texas Coast. Potential
impacts in this area include:
    - Widespread deep inundation, with storm surge flooding greatly
      accentuated by powerful battering waves. Structural damage to
      buildings, with many washing away. Damage greatly compounded
      from considerable floating debris. Locations may be
      uninhabitable for an extended period.
    - Near-shore escape routes and secondary roads washed out or
      severely flooded. Flood control systems and barriers may become
      stressed.
    - Extreme beach erosion. New shoreline cuts possible.
    - Massive damage to marinas, docks, boardwalks, and piers.
      Numerous small craft broken away from moorings with many lifted
      onshore and stranded.

Also, protect against life-threatening surge having possible
significant to extensive impacts across Galveston Bay.

Elsewhere across Southeast Texas, little to no impact is anticipated.

* WIND:
Protect against life-threatening wind having possible devastating
impacts across Matagorda Bay from Port O`Connor to Sargent. Potential
impacts in this area include:
    - Structural damage to sturdy buildings, some with complete roof
      and wall failures. Complete destruction of mobile homes. Damage
      greatly accentuated by large airborne projectiles. Locations
      may be uninhabitable for weeks or months.
    - Numerous large trees snapped or uprooted along with fences and
      roadway signs blown over.
    - Many roads impassable from large debris, and more within urban
      or heavily wooded places. Many bridges, causeways, and access
      routes impassable.
    - Widespread power and communications outages.


* TORNADOES:
Protect against a tornado event having possible limited impacts
across all of Southeast Texas. Potential impacts include:
    - The occurrence of isolated tornadoes can hinder the execution
      of emergency plans during tropical events.
    - A few places may experience tornado damage, along with power
      and communications disruptions.
    - Locations could realize roofs peeled off buildings, chimneys
      toppled, mobile homes pushed off foundations or overturned,
      large tree tops and branches snapped off, shallow-rooted trees
      knocked over, moving vehicles blown off roads, and small boats
      pulled from moorings.

Elsewhere across Southeast Texas, little to no impact is anticipated.

PRECAUTIONARY/PREPAREDNESS ACTIONS
----------------------------------

* EVACUATIONS:
For those under evacuation orders, leave as soon as practical with a
destination in mind. Gas up your vehicle well ahead of time. Be sure
that you take all essential materials from your emergency supplies kit.
Let others know where you are going and when you intend to arrive.

If evacuating the area, stick to prescribed evacuation routes. Look
for additional traffic information on roadway smart signs and listen to
select radio channels for further travel instructions. Drivers should
not use cell phones while operating vehicles.

For those not under evacuation orders, understand that there are
inherent risks to evacuation (such as traffic congestion, accidents,
and driving in bad weather), so evacuate only if necessary. Help keep
roadways open for those that are under evacuation orders.

If you are exceptionally vulnerable to wind or water hazards from
tropical systems, consider voluntary evacuation, especially if being
officially recommended. Relocate to a predetermined shelter or safe
destination.

If evacuating away from the area or relocating to a nearby shelter,
leave early before weather conditions become hazardous.

* OTHER PREPAREDNESS INFORMATION:
Now is the time to bring to completion all preparations to protect
life and property in accordance with your emergency plan.

Outside preparations should be wrapped up as soon as possible before
weather conditions completely deteriorate. Any remaining evacuations
and relocations should be expedited before the onset of tropical
storm force wind.

If you are relocating to safe shelter, leave as early as possible. If
heading to a community shelter, become familiar with the shelter
rules before arrival, especially if you have special needs or own a
pet. Take essential items with you from your Emergency Supplies Kit.
Check the latest weather forecast before departing.

Failure to adequately shelter may result in serious injury or loss of
life. Always heed the advice of local officials and comply with any
orders that are issued. Remember, during the storm 9 1 1 Emergency
Services may not be able to immediately respond if conditions are
unsafe. This should be a big factor in your decision making.

Check-in with your emergency points of contact among family, friends,
and workmates. Inform them of your status and well-being. Let them
know how you intend to ride out the storm and when you plan to
check-in again.

Keep cell phones well charged and handy. Also, cell phone chargers
for automobiles can be helpful after the storm. Locate your chargers
and keep them with your cell phone.

In emergencies it is best to remain calm. Stay informed and focused
on the situation at hand. Exercise patience with those you encounter.
Be a Good Samaritan and helpful to others.

If relocating to a nearby shelter or to the home of a family member
or friend, drive with extra caution, especially on secondary roads.
Remember, many bridges and causeways will be closed once higher winds
arrive. Also, if you encounter water covering the road, seek an
alternate route. Always obey official road signs for closures and
detours.

If you are a visitor and still in the area, listen for the name of
the city or town in which you are staying within local news updates.
Be sure you know the name of the county or parish in which it
resides. Pay attention for instructions from local authorities.

Closely monitor NOAA Weather radio or other local news outlets for
official storm information. Be ready to adapt to possible changes to
the forecast.

* ADDITIONAL SOURCES OF INFORMATION:
- For information on appropriate preparations see ready.gov
- For information on creating an emergency plan see getagameplan.org
- For additional disaster preparedness information see redcross.org

NEXT UPDATE
-----------

The next local statement will be issued by the National Weather
Service in Houston/Galveston TX around 430 AM CDT, or sooner if
conditions warrant.

$$

Storm Surge Watch

STORM SURGE WATCH
NWS HOUSTON/GALVESTON TX
1029 PM CDT THU AUG 24 2017

TXZ213-251108-
/O.CON.KHGX.SS.A.1009.000000T0000Z-000000T0000Z/
1029 PM CDT THU AUG 24 2017

...Storm Surge Watch issued August 24 at 10:27PM CDT by NWS
Houston/Galveston TX...

* WIND
- LATEST LOCAL FORECAST: Below tropical storm force wind
- Peak Wind Forecast: 20-30 mph with gusts to 40 mph

- CURRENT THREAT TO LIFE AND PROPERTY: Moderate
- The wind threat has increased from the previous assessment.
- Emergency plans should include a reasonable threat for
strong tropical storm force wind of 58 to 73 mph.
- To be safe, earnestly prepare for the potential of
significant wind impacts. Remaining efforts to secure
properties should now be brought to completion.
- Dangerous wind is possible. Failure to adequately shelter
may result in injury. Move to safe shelter before the wind
becomes hazardous.

- POTENTIAL IMPACTS: Significant
- Some damage to roofing and siding materials, along with
damage to porches, awnings, carports, and sheds. A few
buildings experiencing window, door, and garage door
failures. Mobile homes damaged, especially if unanchored.
Unsecured lightweight objects become dangerous projectiles.
- Several large trees snapped or uprooted, but with greater
numbers in places where trees are shallow rooted. Several
fences and roadway signs blown over.
- Some roads impassable from large debris, and more within
urban or heavily wooded places. A few bridges, causeways,
and access routes impassable.
- Scattered power and communications outages, but more
prevalent in areas with above ground lines.

* STORM SURGE
- LATEST LOCAL FORECAST: Hazardous storm surge possible
- Peak Storm Surge Inundation: The potential for 2-4 feet
above ground somewhere within surge prone areas.
- Window of concern: Begins Friday morning

- CURRENT THREAT TO LIFE AND PROPERTY: Significant
- The storm surge threat has remained nearly steady from the
previous assessment.
- Surf conditions may still be rough with some beach erosion.
Stronger than normal rip currents may also be present.
- Exercise due safety.
- Review your seasonal plan and ensure readiness for the next
storm surge event.

- POTENTIAL IMPACTS: Significant
- Areas of inundation with storm surge flooding accentuated by
waves. Damage to several buildings, mainly near the coast.
- Sections of near-shore escape routes and secondary roads
become weakened or washed out, especially in usually
vulnerable low spots.
- Moderate damage to marinas, docks, boardwalks, and piers.
Several small craft broken away from moorings, especially
in unprotected anchorages.

* FLOODING RAIN
- LATEST LOCAL FORECAST: Flash Flood Watch is in effect
- Peak Rainfall Amounts: Additional 12-18 inches, with
locally higher amounts

- CURRENT THREAT TO LIFE AND PROPERTY: Extreme
- The flooding rain threat has increased from the previous
assessment.
- Emergency plans should include a reasonable threat of
extreme flooding where peak rainfall totals vastly exceed
amounts conducive for flash flooding and rapid inundation.
Rescues and emergency evacuations are very likely.
- To be safe, aggressively prepare for the potential of
devastating to catastrophic flooding rain impacts.
- Life-threatening flooding is possible. Failure to take
action may result in serious injury, significant loss of
life, or human suffering. If flood related watches and
warnings are issued, heed recommended actions. Poor
decisions may result in being cut off or needlessly risk
lives. If vulnerable, relocate to safe shelter on higher
ground before flood waters arrive.

- POTENTIAL IMPACTS: Devastating to Catastrophic
- Extreme rainfall flooding may prompt numerous evacuations
and rescues.
- Rivers and tributaries may overwhelmingly overflow their
banks in many places with deep moving water. Small streams,
creeks, canals, and ditches may become raging rivers. Flood
control systems and barriers may become stressed.
- Flood waters can enter numerous structures within multiple
communities, some structures becoming uninhabitable or
washed away. Numerous places where flood waters may cover
escape routes. Streets and parking lots become rivers of
raging water with underpasses submerged. Driving conditions
become very dangerous. Numerous road and bridge closures
with some weakened or washed out.

* TORNADO
- LATEST LOCAL FORECAST:
- Situation is unfavorable for tornadoes

- CURRENT THREAT TO LIFE AND PROPERTY: None
- The tornado threat has decreased from the previous
assessment.
- Emergency plans need not include a threat for tornadoes.
Showers and thunderstorms with strong gusty winds may still
occur.
- Little to no preparations needed to guard against tropical
tornadoes.
- Ensure readiness for the next tropical tornado event.

- POTENTIAL IMPACTS: Little to None
- Little to no potential impacts from tornadoes.

LAT...LON 2987 9499 2989 9501 2990 9499 2989 9498
          2987 9499
LAT...LON 2986 9503 2984 9501 2986 9498 2982 9492
          2970 9492 2966 9496 2965 9499 2955 9499
          2954 9503 2955 9506 2949 9517 2954 9518
          2955 9523 2958 9526 2965 9526 2962 9534
          2970 9535 2968 9537 2970 9542 2971 9543
          2974 9539 2976 9542 2979 9542 2990 9523
          2989 9520 2990 9515 2995 9514 2994 9512
          2990 9512 2995 9507 2986 9503
$$

Tropical Storm Warning
Harvey Local Watch/Warning Statement/Advisory Number 19
National Weather Service Houston/Galveston TX  AL092017
1027 PM CDT Thu Aug 24 2017

TXZ213-251130-
/O.CON.KHGX.SS.A.1009.000000T0000Z-000000T0000Z/
/O.CON.KHGX.TR.W.1009.000000T0000Z-000000T0000Z/
Harris-
1027 PM CDT Thu Aug 24 2017

...TROPICAL STORM WARNING REMAINS IN EFFECT...
...STORM SURGE WATCH REMAINS IN EFFECT...

* WIND
    - LATEST LOCAL FORECAST: Below tropical storm force wind
        - Peak Wind Forecast: 20-30 mph with gusts to 40 mph

    - CURRENT THREAT TO LIFE AND PROPERTY: Moderate
        - The wind threat has increased from the previous assessment.
        - Emergency plans should include a reasonable threat for
          strong tropical storm force wind of 58 to 73 mph.
        - To be safe, earnestly prepare for the potential of
          significant wind impacts. Remaining efforts to secure
          properties should now be brought to completion.
        - Dangerous wind is possible. Failure to adequately shelter
          may result in injury. Move to safe shelter before the wind
          becomes hazardous.

    - POTENTIAL IMPACTS: Significant
        - Some damage to roofing and siding materials, along with
          damage to porches, awnings, carports, and sheds. A few
          buildings experiencing window, door, and garage door
          failures. Mobile homes damaged, especially if unanchored.
          Unsecured lightweight objects become dangerous projectiles.
        - Several large trees snapped or uprooted, but with greater
          numbers in places where trees are shallow rooted. Several
          fences and roadway signs blown over.
        - Some roads impassable from large debris, and more within
          urban or heavily wooded places. A few bridges, causeways,
          and access routes impassable.
        - Scattered power and communications outages, but more
          prevalent in areas with above ground lines.

* STORM SURGE
    - LATEST LOCAL FORECAST: Hazardous storm surge possible
        - Peak Storm Surge Inundation: The potential for 2-4 feet
          above ground somewhere within surge prone areas.
        - Window of concern: Begins Friday morning

    - CURRENT THREAT TO LIFE AND PROPERTY: Significant
        - The storm surge threat has remained nearly steady from the
          previous assessment.
        - Surf conditions may still be rough with some beach erosion.
          Stronger than normal rip currents may also be present.
        - Exercise due safety.
        - Review your seasonal plan and ensure readiness for the next
          storm surge event.

    - POTENTIAL IMPACTS: Significant
        - Areas of inundation with storm surge flooding accentuated by
          waves. Damage to several buildings, mainly near the coast.
        - Sections of near-shore escape routes and secondary roads
          become weakened or washed out, especially in usually
          vulnerable low spots.
        - Moderate damage to marinas, docks, boardwalks, and piers.
          Several small craft broken away from moorings, especially
          in unprotected anchorages.

* FLOODING RAIN
    - LATEST LOCAL FORECAST: Flash Flood Watch is in effect
        - Peak Rainfall Amounts: Additional 12-18 inches, with
          locally higher amounts

    - CURRENT THREAT TO LIFE AND PROPERTY: Extreme
        - The flooding rain threat has increased from the previous
          assessment.
        - Emergency plans should include a reasonable threat of
          extreme flooding where peak rainfall totals vastly exceed
          amounts conducive for flash flooding and rapid inundation.
          Rescues and emergency evacuations are very likely.
        - To be safe, aggressively prepare for the potential of
          devastating to catastrophic flooding rain impacts.
        - Life-threatening flooding is possible. Failure to take
          action may result in serious injury, significant loss of
          life, or human suffering. If flood related watches and
          warnings are issued, heed recommended actions. Poor
          decisions may result in being cut off or needlessly risk
          lives. If vulnerable, relocate to safe shelter on higher
          ground before flood waters arrive.

    - POTENTIAL IMPACTS: Devastating to Catastrophic
        - Extreme rainfall flooding may prompt numerous evacuations
          and rescues.
        - Rivers and tributaries may overwhelmingly overflow their
          banks in many places with deep moving water. Small streams,
          creeks, canals, and ditches may become raging rivers. Flood
          control systems and barriers may become stressed.
        - Flood waters can enter numerous structures within multiple
          communities, some structures becoming uninhabitable or
          washed away. Numerous places where flood waters may cover
          escape routes. Streets and parking lots become rivers of
          raging water with underpasses submerged. Driving conditions
          become very dangerous. Numerous road and bridge closures
          with some weakened or washed out.

* TORNADO
    - LATEST LOCAL FORECAST:
        - Situation is unfavorable for tornadoes

    - CURRENT THREAT TO LIFE AND PROPERTY: None
        - The tornado threat has decreased from the previous
          assessment.
        - Emergency plans need not include a threat for tornadoes.
          Showers and thunderstorms with strong gusty winds may still
          occur.
        - Little to no preparations needed to guard against tropical
          tornadoes.
        - Ensure readiness for the next tropical tornado event.

    - POTENTIAL IMPACTS: Little to None
        - Little to no potential impacts from tornadoes.

$$

Flash Flood Watch

Flood Watch
National Weather Service Houston/Galveston TX
438 PM CDT Thu Aug 24 2017

TXZ195>200-211>214-227-237-238-250545-
/O.EXB.KHGX.FF.A.0008.170825T0900Z-170828T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Austin-Brazoria-Brazos-Burleson-Chambers-Fort Bend-Galveston-
Grimes-Harris-Liberty-Montgomery-Waller-Washington-
Including the cities of Alvin, Anahuac, Angleton, Bellville,
Brenham, Brookshire, Bryan, Caldwell, Cleveland, College Station,
Conroe, Dayton, Freeport, Friendswood, Galveston, Hempstead,
Houston, Humble, Katy, Lake Jackson, Lake Somerville,
League City, Liberty, Missouri City, Mont Belvieu, Navasota,
Pasadena, Pearland, Prairie View, Richmond, Rosenberg, Sealy,
Sugar Land, Texas City, The Woodlands, Tomball, Willis,
and Winnie
438 PM CDT Thu Aug 24 2017

...FLASH FLOOD WATCH IN EFFECT FROM 4 AM CDT FRIDAY THROUGH
MONDAY MORNING...

The National Weather Service in Houston/Galveston has expanded
the

* Flash Flood Watch to include a portion of southeast Texas...
  including the following counties...Austin...Brazoria...
  Brazos...Burleson...Chambers...Fort Bend...Galveston...
  Grimes...Harris...Liberty...Montgomery...Waller and
  Washington.

* From 4 AM CDT Friday through Monday morning

* Rainfall from Harvey will cause devastating and life-
  threatening flooding as a prolonged heavy rain and flash flood
  threat is expected to occur. Rainfall rates of 4 inches per hour
  or more will lead to flash flooding as rain squalls from Harvey
  begin to become more numerous Friday morning along the coast and
  then spread inland Friday night and Saturday. Periods of heavy
  rainfall are then expected from Harvey or its remnants through
  Monday morning.

* It is possible that additional Southeast Texas counties will be
  added to the Flash Flood Watch as this event unfolds, and the
  Flash Flood Watch itself could be extended beyond Monday
  morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

Tornado Watch

TORNADO WATCH OUTLINE UPDATE FOR WT 465
NWS STORM PREDICTION CENTER NORMAN OK
200 PM CDT FRI AUG 25 2017

TORNADO WATCH 465 IS IN EFFECT UNTIL 200 AM CDT FOR THE
 FOLLOWING LOCATIONS

TXC007-039-057-071-157-167-175-201-239-245-321-391-469-481-
260700-
/O.NEW.KWNS.TO.A.0465.170825T1900Z-170826T0700Z/

TX
.    TEXAS COUNTIES INCLUDED ARE

ARANSAS              BRAZORIA            CALHOUN
CHAMBERS             FORT BEND           GALVESTON
GOLIAD               HARRIS              JACKSON
JEFFERSON            MATAGORDA           REFUGIO
VICTORIA             WHARTON
$$

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