August 2017: Looking Back at Harvey 5 Year Later

[Ounce]

Anyone hear anything about Downtown Houston and Buffalo Bayou?

Well, KHOU is located there on Allen Parkway. They just showed Stanford street at their studios with water quickly flowing towards Buffalo Bayou. They're in the middle of the feeder band.

So, I'd watch channel 11, since they're at the location you are asking about because the water may go into their studios...again.

The Flood Warning System is slow to update, right now.

[Ounce]

Harris county flood warning system website is down.

[mckinne63]

Its been raining so heavy! here in the heights, my street is completely flooded...

Our street that doesn't normally flood, was a river in about 15 minutes!

[unome]

Our SE Texas neighbor with the 53rd Weather Squadron flew the last mission for Harvey. Inside a C-130 as CAT 4 Harvey nears landfall. Thanks for your permission to share on the KHOU Weather Forum, Kelly.

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those are incredible... thank Kelly for all of us & thank you for sharing them with us, too !

[ronyan]

10" in 90 minutes reported near Hobby via KHOU. Incredible rate.

[Belmer]

I live 5 miles SE of Hobby, that report of over 9 inches in the past hour and a half I can believe. I've never seen my neighborhood flood so fast before and my neighborhood hardly floods - we have very good drainage. I'm very worried this is going to be a bad night for not only my home, but many other people.

[srainhoutx]

GOES 16 IR Imagery suggests a possible core rain event developing.

[TexasBreeze]

Usually these bands and cores intensify after 2 or so in the night- this one began much earlier and will go on and on looks like.

[mckinne63]

Getting hammered again in Stafford.

[Ptarmigan]

GOES 16 IR Imagery suggests a possible core rain event developing.

Not good.

[ronyan]

Explain what core rain event means.

[unome]

incredible

https://weather.msfc.nasa.gov/cgi-bin/b ... le=GOES-16 ABI - Nighttime Microphysics Advanced&time_drop=show

https://weather.msfc.nasa.gov/cgi-bin/b ... le=GOES-16 ABI - Air Mass&time_drop=show

[Belmer]

HRRR is doing an EXCELLENT job right now of showing these feederbands developing and the rainfall totals. If that is any sign, the latest HRRR models are definitely not showing any relief.

[Freeporttx3334]

What is a core rain event?

[Ptarmigan]

Usually these bands and cores intensify after 2 or so in the night- this one began much earlier and will go on and on looks like.

Allison core rain happened before 2:00 AM. Claudette core rain started in the evening hours.

[Ptarmigan]

Explain what core rain event means.

What is a core rain event?

Core rains happen near the core or center of low pressure.

Core rains happen because the warm core low pressure and cooler ambient temperature. The thunderstorms happen near the center, hence the name core rain.

Core rains can occur with any low pressure as long it is a warm core low pressure. They can be non-tropical in origin.

List Of Core Rain Events
http://forums.khou.com/viewtopic.php?f=2&t=60&p=2936

[mckinne63]

Hubby and I are going to sleep in shifts so someone always keeping an eye on the yard and the pool.

I want to thank again all the Pro Mets on this forum. i have been telling hubby all day that we can't let our guard down.

[srainhoutx]

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Houston/Galveston TX
1141 PM CDT SAT AUG 26 2017

...FLASH FLOOD EMERGENCY FOR AREAS FROM CLOVERLEAF TO PASADENA TO
WEBSTER TO SANTA FE TO NEAR SAN LUIS PASS...

The National Weather Service in League City has issued a

* Flash Flood Warning for...
Western Galveston County in southeastern Texas...
Northeastern Brazoria County in southeastern Texas...
Southeastern Harris County in southeastern Texas...

* Until 130 AM CDT.

* At 1130 PM CDT, Doppler radar and automated rain gauges indicated
a band of thunderstorms with torrential rainfall rates of 4 to 6
inches per hour. Some of these areas have had already had 6 to 15
inches of rain already. Flash flooding is ongoing and many rivers
and bayous in the area are out of banks. Traffic is impassable in
many areas.

This is a FLASH FLOOD EMERGENCY for portions of Galveston,
Brazoria and Harris county. This is a PARTICULARLY DANGEROUS
SITUATION. DO NOT ATTEMPT TO TRAVEL.

* Some locations that will experience flooding include...
Pasadena, League City, Texas City, southern Friendswood, Deer Park,
Alvin, Dickinson, La Marque, Santa Fe, Webster, Hitchcock,
Cloverleaf, Clear Lake, Channelview, eastern South Belt /
Ellington, Nassau Bay, Taylor Lake Village, Hillcrest, Liverpool
and Ellington Field.

Flood waters are moving down Mary's creek, Cowarts creek, Clear
creek, and Chigger creek, and Chocolate Bayou.

[srainhoutx]

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Houston/Galveston TX
1158 PM CDT SAT AUG 26 2017

The National Weather Service in League City has issued a

* Tornado Warning for...
Central Harris County in southeastern Texas...

* Until 1215 AM CDT.

* At 1158 PM CDT, a severe thunderstorm capable of producing a
tornado was located over Cloverleaf, moving north at 20 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.

* Locations impacted include...
Cloverleaf, Channelview, Hunterwood, Northshore, East Houston, El
Dorado / Oates Prairie, Sheldon and northern Houston Ship Channel.

[srainhoutx]

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON, TX
1159 PM CDT Sat Aug 26 2017

...The National Weather Service in Houston/Galveston has issued a flood warning
for the following rivers...

Greens Bayou At Knobcrest Street affecting the following counties in Texas...
Harris


For Greens Bayou at Knobcrest Street, Minor flooding is occuring, with Moderate
flooding forecasted.

The current weather is dominated by a persistent line of showers and thunderstorms.
This weather system will produce rainfall amounts ranging from 5 to 15 inches.
The extended outlook is for additional showers and thunderstorms.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons with interests along these streams should keep alert to rising water and
take all precautions to protect their property. Do not drive or walk into
flooded areas the depth and water velocity could be too great for you to cross
safely. Motorists should avoid any water covered roads and find an alternate
route. Livestock and equipment should be removed from the flood plain
immediately.



Stay tuned to NOAA Weather radio or other news sources for further updates.