Flash Flood Warning
TXC015-039-041-051-089-157-167-185-201-239-291-321-339-471-473-477-
481-261630-
/O.NEW.KHGX.FF.W.0047.170826T1327Z-170826T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN – EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Houston/Galveston TX
827 AM CDT SAT AUG 26 2017
The National Weather Service in League City has issued
Flash Flood Warning for:
- Jackson County in south central Texas…
- Grimes County in southeastern Texas…
- Washington County in southeastern Texas…
- Brazos County in southeastern Texas…
- Western Galveston County in southeastern Texas…
- Montgomery County in southeastern Texas…
- Brazoria County in southeastern Texas…
- Waller County in southeastern Texas…
- Southwestern Walker County in southeastern Texas…
- Harris County in southeastern Texas…
- Colorado County in southeastern Texas…
- Wharton County in southeastern Texas…
- Austin County in southeastern Texas…
- Central Burleson County in southeastern Texas…
- Fort Bend County in southeastern Texas…
- Southwestern Liberty County in southeastern Texas…
- Matagorda County in southeastern Texas…
* Until 1130 AM CDT.
* At 825 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. 3 to 10 inches of rain have
fallen. Flash flooding is ongoing or expected to begin shortly.
* Some locations that will experience flooding include…
Pasadena, College Station, Pearland, League City, Sugar Land,
Bryan, northwestern Baytown, Missouri City, Conroe, Texas City,
Matagorda, Friendswood, La Porte, Deer Park, Rosenberg, Lake
Jackson, Alvin, Angleton, Dickinson and Stafford.
Additional rainfall amounts of 1 to 2 inches an hour are possible in
the warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.
A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.
&&
LAT…LON 2907 9693 2933 9656 2963 9687 2996 9657
3015 9665 3015 9678 3030 9662 3061 9673
3079 9624 3079 9593 3002 9493 2987 9501
2967 9494 2908 9508 2843 9619 2861 9639
2863 9637 2864 9642 2872 9641 2871 9650
$$
Flash Flood Warning
Flash Flood Warning
TXC291-339-407-471-261600-
/O.NEW.KHGX.FF.W.0046.170826T1254Z-170826T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN – EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Houston/Galveston TX
754 AM CDT SAT AUG 26 2017
The National Weather Service in League City has issued a
* Flash Flood Warning for…
Northeastern Montgomery County in southeastern Texas…
Southwestern San Jacinto County in southeastern Texas…
Southwestern Liberty County in southeastern Texas…
Southeastern Walker County in southeastern Texas…
* Until 1100 AM CDT.
* At 754 AM CDT, Doppler radar indicated a persistent band of
thunderstorms producing heavy rain across the warned area. Up to
two inches of rain have already fallen. Flash flooding is expected
to begin shortly.
* Some locations that will experience flooding include…
Cleveland, Dayton, Splendora, Cut And Shoot, New Waverly, Plum
Grove and North Cleveland.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
&&
LAT…LON 3001 9492 3053 9554 3063 9533 3019 9487
$$
Flash Flood Watch
Flood Watch
National Weather Service Houston/Galveston TX
1008 AM CDT Sat Aug 26 2017
TXZ163-164-176>179-195>200-210>214-226-227-235>238-271200-
/O.CON.KHGX.FF.A.0008.000000T0000Z-170830T0000Z/
/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
1008 AM CDT Sat Aug 26 2017
…FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH TUESDAY 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 Tuesday evening
* Heavy rainfall is likely as rainbands from Harvey move across
the area. Periods of heavy rain are likely from Harvey with
rainfall totals through Tuesday evening expected to be 15 to 30
inches with isolated maximum amounts of 40 inches. The greatest
rainfall threat area is expected to be generally along and south
of a line from College Station to Huntsville to High Island.
Rainfall of this magnitude will cause catastrophic and life-
threatening flooding.
* The Flash Flood Watch could be extended beyond Tuesday 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 Flash Flood Warnings be issued.
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Houston/Galveston TX
741 AM CDT Sat Aug 26 2017
GMZ330-335-350-355-370-375-TXZ163-164-176>179-195>200-210>214-226-
227-235>238-271100-
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-
741 AM CDT Sat Aug 26 2017
This hazardous weather outlook is for portions of Southeast Texas.
.DAY ONE…Today and Tonight
Rainbands from Harvey will produce gusty winds, locally heavy rainfall
and associated flooding, and isolated tornadoes. Flooding will occur
as rainfall totals could approach or exceed 10 to 15 inches.
.DAYS TWO THROUGH SEVEN…Sunday through Friday
Harvey is expected to meander in and around the Southeast Texas area
for several days and produce round after round of showers and thunderstorms.
Rainfall totals (including today`s and tonight`s 10 to 15 inches) will
be adding up with event amounts of 15 to 30 inches expected and isolated
maximum totals of 40 inches possible. The greatest threat area is expected
to be generally along and south of a line from Brenham to Conroe to
High Island. Rainfall of this magnitude will cause catastrophic and
life-threatening flooding.
.SPOTTER INFORMATION STATEMENT…
Spotters will be needed over the weekend and through at least the
first half of the week.
$$
Hurricane Local Statement
Hurricane Harvey Local Statement Intermediate Advisory Number 24A
TXZ163-164-176>179-195>200-210>214-226-227-235>238-262015-
Hurricane Harvey Local Statement Intermediate Advisory Number 24A
National Weather Service Houston/Galveston TX AL092017
713 AM CDT Sat Aug 26 2017
This product covers Southeast Texas
**HARVEY MOVING SLOWLY OVER TEXAS PRODUCING TORRENTIAL RAINS**
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 Tropical Storm Warning are in effect
for Brazoria, Galveston, Jackson, and Matagorda
* STORM INFORMATION:
– About 150 miles west-southwest of Galveston TX or about 70
miles west of Matagorda TX
– 28.7N 97.2W
– Storm Intensity 80 mph
– Movement North-northwest or 340 degrees at 6 mph
SITUATION OVERVIEW
——————
Hurricane Harvey has weakened to a Category 1 and is producing
torrential rainfall and isolated tornadoes across Southeast Texas as it
slowly drifts to the NNW. The primary impact from Harvey over
Southeast Texas remains prolonged significant heavy rainfall that will
induce extreme widespread flooding through at least the beginning of
next week. Flash flooding has already begun across portions of
Southeast Texas. Tropical storm force winds are possible through around
noon Saturday for the southwestern portions of Southeast Texas. With
the strongest winds tonight, storm surge will be slow to recede through
Sunday, particularly west of Sargent. Elevated tide levels will
continue through Tuesday. Tornadoes will continue to form this morning,
especially across the coastal counties and first inland tier. Again,
the primary emphasis and greatest threat to life and property will be
the extreme rainfall amounts that will likely lead to a potentially
catastrophic and prolonged flash flooding event over the coming 3 to 5
days.
POTENTIAL IMPACTS
—————–
* FLOODING RAIN:
Potential impacts from the flooding rain will continue to unfold
across Southeast Texas over the next 3 to 5 days. Remain well guarded
against life-threatening flood waters having possible catastrophic
impacts. If realized, these 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.
* WIND:
Potential impacts from the main wind event are now unfolding across
the Matagorda Bay area. Remain well sheltered from life-threatening
wind having possible extensive impacts. If realized, these impacts
include:
– Considerable roof damage to sturdy buildings, with some having
window, door, and garage door failures leading to structural
damage. Mobile homes severely damaged, with some destroyed.
Damage accentuated by airborne projectiles. Locations may be
uninhabitable for weeks.
– Many large trees snapped or uprooted along with fences and
roadway signs blown over.
– Some roads impassable from large debris, and more within urban
or heavily wooded places. Several bridges, causeways, and
access routes impassable.
– Large areas with power and communications outages.
Potential impacts from the main wind event are also now unfolding
across the southwestern portion of Southeast Texas. Remain well
sheltered from life-threatening wind having possible limited to
extensive impacts.
* SURGE:
Potential impacts from the main surge event are now unfolding across
the Upper Texas Coast, primarily west of Sargent. Remain well away
from life-threatening surge having possible devastating impacts. If
realized, these impacts include:
– 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.
– Major beach erosion with heavy surf breaching dunes. Strong and
numerous rip currents.
– Moderate damage to marinas, docks, boardwalks, and piers.
Several small craft broken away from moorings, especially in
unprotected anchorages.
Potential impacts from the main surge event are also now unfolding
across the Upper Texas Coast east of Sargent. Remain well away from locally
hazardous surge having possible limited impacts.
* TORNADOES:
Potential impacts from tornadoes are still unfolding across Southeast
Texas, particularly across the coastal and second tier counties. Remain
well braced against tornadoes event having additional limited impacts.
If realized, these 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS
———————————-
* EVACUATIONS:
Do not return to evacuated areas until hazardous winds diminish and
flood waters abate.
* OTHER PREPAREDNESS INFORMATION:
Now is the time to remain safely sheltered from the storm. Stay
inside and away from windows. Listen for updates and be ready in case
you lose electrical power. Locate your battery powered radio and
flashlight from your Emergency Supplies Kit. Keep these items close.
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.
Continue to keep your cell phone well charged for as long as
possible. If you lose power, use it more sparingly and mainly for
personal emergencies and check-ins. Do not overload communications
systems with idle chatter.
Do not venture outside while in the eye of a hurricane. Within the
eye, weather conditions may temporarily improve which can be
misleading. Once the eye passes, the wind will change direction and
return to dangerous speeds. Heavy rain will also return. Be smart and
remain safely hidden from the storm.
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.
When major hurricanes make landfall, extreme winds bring a tremendous
threat to life and cause devastating to catastrophic damage. During
landfall, listen for extreme wind warnings which indicate the exact
timing and location of these incredible life-threatening winds. If
issued for you area, move to the safest place within your home or
shelter. Take the same life-saving actions as if it were a violent
tornado.
* 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 1030 AM CDT, or sooner if
conditions warrant.
$$
Tornado Watch
TORNADO WATCH OUTLINE UPDATE FOR WT 467
NWS STORM PREDICTION CENTER NORMAN OK
145 AM CDT SAT AUG 26 2017
TORNADO WATCH 467 IS IN EFFECT UNTIL 100 PM CDT FOR THE
FOLLOWING LOCATIONS
TXC015-039-041-051-071-089-149-157-167-185-199-201-239-245-285-
287-291-321-339-361-473-477-481-261800-
/O.NEW.KWNS.TO.A.0467.170826T0645Z-170826T1800Z/
TX
. TEXAS COUNTIES INCLUDED ARE
AUSTIN BRAZORIA BRAZOS
BURLESON CHAMBERS COLORADO
FAYETTE FORT BEND GALVESTON
GRIMES HARDIN HARRIS
JACKSON JEFFERSON LAVACA
LEE LIBERTY MATAGORDA
MONTGOMERY ORANGE WALLER
WASHINGTON WHARTON
$$
