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Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 12:01 am
by ticka1
will it eventually more more east?

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 12:02 am
by srainhoutx
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Houston/Galveston TX
1200 AM CDT SUN AUG 27 2017

The National Weather Service in League City has issued a

* Tornado Warning for...
Northwestern Galveston County in southeastern Texas...
Southeastern Harris County in southeastern Texas...

* Until 1215 AM CDT.

* At 1200 AM CDT, a severe thunderstorm capable of producing a
tornado was located over Webster, moving north at 15 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...
Southwestern Pasadena, northern League City, northeastern
Friendswood, Deer Park, South Houston, Webster, South Belt /
Ellington, Clear Lake, Nassau Bay, Ellington Field, The Johnson
Space Center and Edgebrook Area.


Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 12:11 am
by Andrew
Very bad trend over Houston Metro region. Continuing training is concerning considering this is really only day 2 of day 5-6. Stay safe everyone!

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 12:18 am
by DoctorMu
Ptarmigan wrote:
srainhoutx wrote:GOES 16 IR Imagery suggests a possible core rain event developing.
Not good.
Yeah - I can see it at the end of the loop. Like the energy from the center jumped 150 miles East.

http://www.iweathernet.com/satellite-im ... oop-3-days

Pasadena, Baytown, Pearland near the center. How large can the core events grow?

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 12:25 am
by DoctorMu
Ptarmigan wrote:
ronyan wrote:Explain what core rain event means.
Freeporttx3334 wrote: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
Yeah - that's what is strange. The center of low pressure at ground and aloft is just west of Victoria, and does not appear to be moving substantially. This is more like a Gulf firehose?

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 12:28 am
by Ounce
White Oak Bayou is getting close to spilling over onto the exit ramp from I-45 South to I-10 West. This comes from the Houston Transtar camera of I-10 @ Houston Avenue.

http://traffic.houstontranstar.org/laye ... &fr=1&ps=0

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 12:32 am
by srainhoutx
Catastrophic Flood underway across SE TX. Katdaddy reports water coming into homes at his neighborhood. Jeff reports rainfall totals have exceeded Allison (2001) in some locations.

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 12:42 am
by sau27
Let's stay #blueshed strong tonight.

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 12:44 am
by Texaspirate11
Hours of intensive lightning by the bay
another 8 inches in my rain gauge making it 16 inches within 24 hours
Under tornado warnings and streets are flooding.
Friendswood opened a shelter. Homes are taking on water.

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 12:44 am
by DoctorMu
Event: Flood Warning
Alert:
...The National Weather Service in Houston/Galveston has issued a flood warning
for the following rivers...
Berry Bayou At Nevada Street affecting the following counties in Texas...
Harris
For the Sims Bayou at Nevada Street, Minor flooding is occuring, with river
levels forecasted to decrease.
The National Weather Service in Houston/Galveston has issued a

* Flood Warning for
The Berry Bayou At Nevada Street.

* until further notice...or until the warning is canceled.

* At 1222 AM Sunday the stage was 29.7 feet.

* Flood stage is 29.0 feet.
&&
Sims Bayou
MISSING
Instructions: 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.
Target Area:
Harris


Stay safe everyone. The firehose is drifting a tad east. League City bearing the brunt. Just east of downtown getting hammered. Jersey Village seeing a heavy downpour.

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 12:46 am
by mckinne63
Really concerned here, high water on the side of our house and we have a drainage system. But the water has no where to go when the street is a river.

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 12:47 am
by Baseballdude2915
Torrential rainfall here in Dickinson since around 9PM. 2+ inches per hour.

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 12:51 am
by DoctorMu
mckinne63 wrote:Really concerned here, high water on the side of our house and we have a drainage system. But the water has no where to go when the street is a river.
If I read the radar correctly, it could lighten up for you in Stafford within 30 min.

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 1:00 am
by DoctorMu

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 1:03 am
by DoctorMu
Event: Flash Flood Warning
Alert:
The National Weather Service in League City has issued a

* Flash Flood Warning for...
Southern Grimes County in southeastern Texas...
Southeastern Brazos County in southeastern Texas...
Southwestern Montgomery County in southeastern Texas...
Northeastern Waller County in southeastern Texas...
Northern Harris County in southeastern Texas...

* Until 400 AM CDT.

* At 1256 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Two to four inches has fallen
there in the last few hours on top of heavy rainfall yesterday.
Showers and thunderstorms some with heavy rainfall will continue
across the area. Flash flooding is already occuring or expected
to begin shortly.

* Some locations that will experience flooding include...
Southern College Station, Humble, Tomball, Navasota, Pinehurst,
Cloverleaf, The Woodlands, Greater Greenspoint, Spring, Aldine,
Channelview, northern Northside / Northline, Kingwood, Oak Ridge
North, Shenandoah, Magnolia, Montgomery, Stagecoach, Millican and
Anderson.
Instructions: Be especially cautious at night when it is harder to recognize the dangers of flooding. 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. Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots.
Target Area:
Brazos
Grimes
Harris
Montgomery
Waller

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 1:07 am
by Scott747
The developing band to the sw could be as jntense as the previous one.

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 1:17 am
by srainhoutx
Jeff reports people climbing into attics in S Houston to escape the rising flood waters.

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 1:26 am
by txflagwaver
Water in homes in El Lago (Seabrook).

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 1:27 am
by mckinne63
DoctorMu wrote:
mckinne63 wrote:Really concerned here, high water on the side of our house and we have a drainage system. But the water has no where to go when the street is a river.
If I read the radar correctly, it could lighten up for you in Stafford within 30 min.
I sure hope so! It stopped for a but is now raining again. Only time I have seen water lapping up the driveway was during Allison. And we have never seen standing water on the side of the side of the house like we have seen this evening.

Re: August 2017: Tracking Harvey/Catastrophic Flooding/Torna

Posted: Sun Aug 27, 2017 1:29 am
by DoctorMu
Scott747 wrote:The developing band to the sw could be as jntense as the previous one.
It's approaching Bay City.