Monday, August 28, 2017

Aug. 27 17

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


Summary: The day was warm, wet, and cloudy. Light to moderate rain bands with a few moderately heavy to possibly heavy rain bands, from Harvey, during the mid-morning through the late evening. Heavy to very heavy rain bands were falling from Harvey during the early morning and night. The sky looked to be covered in stratus, stratocumulus, and nimbus clouds, during the morning, afternoon, evening, and night. The wind speeds looked to be calm with gentle to moderate gusts with some occasional 20 to 30 mph gusts with maybe some very occasional 40+ mph gusts, during the early morning and night. It felt warm, during the morning, afternoon, evening, and night. There were numerous flood statements and warnings and a Flash Flood Watch issued for the Houston, TX area, along with a Tornado Watch and a Few Tornado Warnings. There was a Hydraulic Weather Statement issued for the Houston, TX area, for the amount of full and over full bayous in and around the Houston, TX area. There was also a Hurricane Local Statement issued and a Hazardous Weather Outlook issued, for the Houston, TX area, by NOAA. The low temps looked to be in the 70's and the high temps looked to be in the 70's with maybe some 80's, for the Houston, TX area.


Sunday Aug. 27 17 9:00AM: Day Three. More moderately heavy to heavy with some very heavy rain bands passed through the Houston, TX area, from last night through 12 am, continuing on through the early morning, with a little break, during the mid-morning with just some light to moderate rain falling. There does look to be a very heavy rain band on the way. The wind speeds have been calm with some really strong gusts. (20 to maybe 30 mph) during the heavy to very heavy bands of rain. There have been more tornadoes and damage reported along with more flooding in and around the Houston, TX area. Many cars have been stalled out and rescued. Houses that have been flooded out, are now being rescued by the National Guard. My brother said that my houses street was filled with water, earlier this morning, but the water looks to be gone now. No flooding has occurred at my house, at this moment.

Sunday Aug. 27 17 12:30PM: Day Three. More light to moderate rain with some occasional moderately heavy to heavy showers passing through my house and the rest of the Houston, TX area. With some areas receiving more, or less rain. The wind speeds have been calm with maybe some gentle to moderate gusts. No flooding at my house, or storm damage reports. There have been some more tornado warnings. Tropical Storm Harvey is now headed south back towards the Gulf of Mexico.


Sunday Aug. 27 17 7:30PM: Day Three. Nothing much has changed. My neighborhood received a pretty good break from the rain this afternoon, with only some light to moderate rain bands. Moderately heavy to heavy rain has started up again, this evening, but doesn’t look to be as bad as last night. There have been a few occasional 20 to 30 mph wind gusts, but other than that the wind speeds have been calm with gentle to moderate gusts. There have been a lot more flood reports and road closures in and around the Houston, TX area, with most of the bayous reaching above flood stage. No flooding has occurred in my neighborhood and hopefully never will. No new storm damages. Maybe a few more tornadoes. I have seen lightning, or hear any thunder in a while.


Locations: Northwest Houston, TX.


Thoughts: I am really looking forward to this rain ending soon. The sooner, the better! Houston, TX just can't take anymore. I am hoping for some relief once Tropical Storm Harvey makes it's way farther into the Gulf of Mexico.


Area Forecast Discussion 
Issued by NWS Houston/Galveston, TX
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000
FXUS64 KHGX 272329
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
629 PM CDT Sun Aug 27 2017

.AVIATION...
The center of near-stationary TS Harvey is currently located near
Edna, TX and should continue to slowly drift to the south and
southeast over the next 24 hours. Rain bands are expected to
intensify over night and produce intermittent IFR conditions.
Hobby and Intercontinental Airports remain closed to non
emergency traffic. TAFs communicate MVFR with periods of IFR
conditions within convective banding. Winds are from the
southeast and south with occasional gusts to 30 knots inside rain
bands. 44

&&

.PREV DISCUSSION... /ISSUED 516 PM CDT Sun Aug 27 2017/

..Continued potential for devestating flooding over the next
several days from Harvey`s rainfall...

DISCUSSION...
Rainfall from Harvey continued to produced catastrophic and life-
threatening flooding across portions of Southeast Texas this
afternoon. Rainfall over the past 48 hours has exceeded 12 inches
with a large part of the area receiving in excess of 20 inches.
This has led to a long-period flash flood emergency in these
locations.

Unfortunately, the center of TS Harvey was located just west of
Jackson County. Rain bands moving into SE Texas will lead to
additional heavy rainfall this afternoon and tonight. The rainfall
potential over the next three days is 15 to 25 inches with
localized higher amounts. Isolated tornadoes will continue to be
a threat in the rain bands to the east of the storm`s center.

Stay tuned to the latest advisories on Harvey for the forecast
track of Harvey.

40

MARINE...
Tropical Storm Harvey is currently in the vicinity of
Victoria and is slowly drifting toward the southeast. It is expected
to re-emerge over the gulf around Noon on Monday and will remain
over the water for a little over 24 hours before it is finally
pulled off to the north on Wednesday. The tropical storm warning
continues between Port O` Connor and Freeport, and a tropical storm
watch has been issued from Freeport to San Luis Pass.

Bands of heavy rainfall with embedded thunderstorms will
periodically track across the Upper Texas coastal waters...moving in
from the south and southwest. Gale force wind gusts and agitated
seas will occur in and around any passing strong thunderstorms.
Waterspouts will also be a threat within Harvey`s outer bands. East
to southeast winds will range between 20 to 30 knots with average
wave heights of between 5 to 7 feet...increasing to 20 to 30 knots
with 10 to 12 foot seas when the tropical storm moves off the coast.

Extreme to strong rip currents will continue for a few more days.
Strong currents caused by river discharges into the bays will also
be problematic for navigation for at least a few days...possibly
into next weekend...given the record setting rainfall that has led
to the extreme inland flooding. 44

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)      72  78  70  80  72 / 100  90  80  70  60
Houston (IAH)              73  76  73  79  74 / 100  90  80  70  70
Galveston (GLS)            76  83  76  83  77 / 100  90  80  80  70

&&

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

     Tropical Storm Watch for the following zones: Brazoria.

     Flash Flood Watch through Wednesday evening for the following
     zones: 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.

     Coastal Flood Advisory from 2 AM to 7 PM CDT Monday for the
     following zones: Brazoria...Chambers...Galveston...Harris.

GM...Tropical Storm Warning for the following zones: Matagorda Bay.

     Small Craft Advisory until 7 AM CDT Tuesday for the following
     zones: Coastal waters from High Island to Freeport out 20
     NM...Galveston Bay...Waters from Freeport to the Matagorda
     Ship Channel from 20 to 60 NM...Waters from High Island to
     Freeport from 20 to 60 NM.

     Tropical Storm Watch for the following zones: Coastal waters
     from Freeport to the Matagorda Ship Channel out 20 NM.

&&

$$

Discussion...40
Aviation/Marine...44

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Houston/Galveston TX
621 AM CDT Sun Aug 27 2017

GMZ330-335-350-355-370-375-TXZ163-164-176>179-195>200-210>214-226-
227-235>238-281200-
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-
621 AM CDT Sun Aug 27 2017

...FLASH FLOOD EMERGENCY FOR LIFE-THREATENING CATASTROPHIC FLOODING....

This hazardous weather outlook is for portions of Southeast Texas.

.DAY ONE...Today and Tonight

Periods of showers and thunderstorms with heavy rainfall can be expected
across the area today and tonight as Tropical Storm Harvey remains nearly
stationary. An additional 2 to 4 inches of rain is likely, and 10 to
12 inches are possible with these storms. Any rain falling on locations
that have already received record breaking rainfall will be devastating.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Harvey is expected to meander in and around the Southeast Texas area
for several days and produce round after round of showers and thunderstorms
Additional life-threatening rainfall totals of 15 to 25 inches with
isolated higher amounts are possible across the Flash Flood Watch area
over the next several days, and results will be devastating if any
of these rains fall where catastrophic flooding has already occurred.

.SPOTTER INFORMATION STATEMENT...
Spotters will be needed through at least the first half of the week.

$$

Tornado Watch

TORNADO WATCH OUTLINE UPDATE FOR WT 471
NWS STORM PREDICTION CENTER NORMAN OK
1240 PM CDT SUN AUG 27 2017

TORNADO WATCH 471 IS IN EFFECT UNTIL 200 AM CDT FOR THE
 FOLLOWING LOCATIONS

TXC039-071-157-167-199-201-245-291-361-280700-
/O.NEW.KWNS.TO.A.0471.170827T1740Z-170828T0700Z/

TX
.    TEXAS COUNTIES INCLUDED ARE

BRAZORIA             CHAMBERS            FORT BEND
GALVESTON            HARDIN              HARRIS
JEFFERSON            LIBERTY             ORANGE
$$

Flash Flood Watch

Flood Watch
National Weather Service Houston/Galveston TX
424 PM CDT Sun Aug 27 2017

TXZ163-164-176>179-195>200-210>214-226-227-235>238-280530-
/O.CON.KHGX.FF.A.0008.000000T0000Z-170831T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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-
Including the cities of Alvin, Anahuac, Angleton, Bay City,
Bellville, Brenham, Brookshire, Bryan, Caldwell, Cleveland,
Coldspring, College Station, Columbus, Conroe, Corrigan,
Crockett, Dayton, Eagle Lake, Edna, El Campo, Freeport,
Friendswood, Galveston, Groveton, Hempstead, Houston, Humble,
Huntsville, Katy, Lake Jackson, Lake Somerville, League City,
Liberty, Livingston, Madisonville, Missouri City, Mont Belvieu,
Navasota, Onalaska, Palacios, Pasadena, Pearland, Pierce,
Prairie View, Richmond, Rosenberg, Sealy, Shepherd, Sugar Land,
Texas City, The Woodlands, Tomball, Trinity, Weimar, Wharton,
Willis, and Winnie
424 PM CDT Sun Aug 27 2017

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY
EVENING...

The Flash Flood Watch continues for

* Portions of Southeast Texas and southeast Texas...including
  the following counties...in Southeast Texas...Jackson. In
  southeast Texas...Austin...Brazoria...Brazos...Burleson...
  Chambers...Colorado...Fort Bend...Galveston...Grimes...
  Harris...Houston...Liberty...Madison...Matagorda...
  Montgomery...Polk...San Jacinto...Trinity...Walker...Waller...
  Washington and Wharton.

* Through Wednesday evening

* Additional rainfall amounts of 15 to 25 inches with locally
  higher amounts are possible across the watch area over the next
  several days. Given the amount of rainfall that has already
  occurred and the ongoing devastating flooding, this additional
  rainfall will cause catastrophic flooding.

* The Flash Flood Watch could be extended beyond Thursday evening.


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 additional Flash Flood Warnings be issued.

&&

$$

Hurricane Local Statement

Tropical Storm Harvey Local Statement Advisory Number 30
TXZ163-164-176>179-195>200-210>214-226-227-235>238-280530-

Tropical Storm Harvey Local Statement Advisory Number 30
National Weather Service Houston/Galveston TX  AL092017
423 PM CDT Sun Aug 27 2017

This product covers Southeast Texas

**UNPRECEDENTED AND CATASTROPHIC FLOODING OCCURING OVER 
SOUTHEASTERN TEXAS**


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

* CHANGES TO WATCHES AND WARNINGS:
    - A Tropical Storm Watch has been issued for Brazoria

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Watch is in effect for Brazoria
    - A Tropical Storm Warning is in effect for Jackson and Matagorda

* STORM INFORMATION:
    - About 70 miles west-northwest of Matagorda TX or about 60 miles
      northwest of Port O`Connor TX
    - 29.0N 97.0W
    - Storm Intensity 40 mph
    - Movement Southeast or 140 degrees at 2 mph

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

A tropical storm watch has been added for Brazoria and the adjacent
near short waters as Harvey begins to loop around off the coast over
the next 48 hours. 
This forecast track will only add to the devastating
rainfall and prolong flooding conditions.

A catastrophic and life-threatening flash flooding event is
unfolding across Southeast Texas this morning. Many Flash Flood
Emergencies have already been issued for the Houston Metro area
overnight, some of which remain in effect this morning. Bands of heavy
rainfall will continue to drop devastating amounts of ADDITIONAL
rainfall across the area over the next several days. Tornadoes have
also been occurring across Southeast Texas over the last day or so and
will continue through the next several days. Coastal flooding may be
an ongoing issue along the coast where winds will continue to push
water onshore, particularly south of Sargent. Elevated tides will
cause the recession of coastal flood waters to be slow, likely lasting
into the first part of the week. Wind gusts to tropical storm force
are still ongoing, primarily in the southwestern portions of the area
towards Matagorda Bay. Though there are currently multiple hazards
present across the area, the greatest threat to life and property
remains the ongoing extreme rainfall and subsequent prolonged and
catastrophic flash flooding.

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

* FLOODING RAIN:
Prepare for life-threatening rainfall flooding having possible
devastating impacts across all of Southeast Texas. 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.

* TORNADOES:
Prepare for a tornado event having possible limited impacts across
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.

* WIND:
Prepare for hazardous wind having possible limited impacts across
Southeast Texas. Potential impacts include:
    - Damage to porches, awnings, carports, sheds, and unanchored
      mobile homes. Unsecured lightweight objects blown about.
    - Many large tree limbs broken off. A few trees snapped or
      uprooted, but with greater numbers in places where trees are
      shallow rooted. Some fences and roadway signs blown over.
    - A few roads impassable from debris, particularly within urban
      or heavily wooded places. Hazardous driving conditions on
      bridges and other elevated roadways.
    - Scattered power and communications outages.

* SURGE:
Prepare for locally hazardous surge having possible limited impacts
across the upper Texas Coast. Potential impacts in this area
include:
    - Localized inundation with storm surge flooding mainly along
      immediate shorelines and in low-lying spots, or in areas
      farther inland near where higher surge waters move ashore.
    - Sections of near-shore roads and parking lots become overspread
      with surge water. Driving conditions dangerous in places where
      surge water covers the road.
    - Moderate beach erosion. Heavy surf also breaching dunes, mainly
      in usually vulnerable locations. Strong rip currents.
    - Minor to locally moderate damage to marinas, docks, boardwalks,
      and piers. A few small craft broken away from moorings.

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

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

* EVACUATIONS:
Do not return to evacuated areas until it is safe.
Listen for the all-clear signal from local authorities.
Stay put stay safe!

* OTHER PREPAREDNESS INFORMATION:
Now is the time to check your emergency plan and take necessary
actions to secure your home or business. Deliberate efforts should be
underway to protect life and property. Ensure that your Emergency
Supplies Kit is stocked and ready.

During the peak of the storm, keep your shoes on and rain gear handy.
Boots and tennis shoes offer the best foot protection if you become
unexpectedly exposed to the elements.

Always heed the advice of local officials and comply with any orders
that are issued. Do not needlessly jeopardize your life or the lives
of others.

Be sure to let friends and other family members know of your
intentions and whereabouts for surviving the storm. For emergency
purposes, have someone located away from the threatened area serve as
your point of contact. Share vital contact information with others.
Keep cell phones handy and well charged.

Be a Good Samaritan and check on those who may not be fully aware of
the situation or who are unable to make personal preparations.

Do not be a thrill seeker or risk your life for senseless photos or
videos. Be wise and avoid becoming another statistic.

Be ready to move to the identified safe room if your home or shelter
begins to fail. Quickly move to an interior room on the lowest floor.
Put as many sturdy walls between you and the storm as you can.
Protect your head and body.

* 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 10 PM CDT, or sooner if
conditions warrant.

$$

There were Also more than a few flash flood warnings, 
and a few tornado warnings.
There were just too many of them to post.

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