Texas Fall-2015

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vbhoutex
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Re:

#1501 Postby vbhoutex » Fri Oct 30, 2015 1:26 pm

WeatherNewbie wrote:Wimberly is flooding very badly again. They are evacuating along the Blanco. Areas along the river south of there need to be on high alert. Could be a repeat of Memorial Day weekend.

Yep, I have some friends trapped at a B&B in Wimberley, but they are safe or were when I last talked to them 2 hours ago. Terrible situation for that whole area. Shuddering at the NWS AFD!!
Hoping we fare a lot better than your area is as this all moves East.

ANY AUSTIN/HILL COUNTRY AREA MEMBERS READING THIS PLEASE LET US KNOW YOU ARE OK. I am not setting up a separate thread at this point, but may if this continues to evolve and get worse.
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Re: Texas Fall-2015

#1502 Postby dhweather » Fri Oct 30, 2015 1:29 pm

http://wx5fwd.org/NWSUpdate


NWS UPDATE: Additional Rainfall
Submitted by wd5m on Fri, 2015-10-30 12:52
Oct30_15.png

From: National Weather Service, Fort Worth
Date: Friday, 30 October 2015 11:28 CDT

Good morning,

The forecast remains on track for a storm total rainfall of 1-3" inches across much of the area today, with round one either still in progress, or winding down. However, the system is not done with north and central Texas just yet. Additional rain is likely through this afternoon and tonight, before exiting the area early Saturday morning. Please see the attachment for additional information about amounts, timing, and the areas which can potentially see bands of heavier rainfall.

BOTTOM LINE:

Additional rainfall is still anticipated for north and central Texas through early Saturday morning. Widespread totals of 1-3" of rain are possible, with isolated areas near 4". There is also a small possibility of a few severe thunderstorms across the area, especially to the south of Waco. Flooding has impacted areas near Austin, so any travel to the south of Temple will be impacted by weather.

AREAS /TIMING:

All areas will still see additional rainfall today, as the rain this morning was only round one. Heaviest rainfall is anticipated to be in the area south of a line from Lampasas...to Marlin...to Franklin. There continues to be the possibility (less than a 20% chance of) localized heavier bands somewhere north and west of this area, see the attachment for details.

IMPACTS:

Localized areas which see more than 3 inches of rainfall will experience flash flooding as well as river/creek rises. Most flooding issues will be caused by locally high rainfall rates and not necessarily the total amount of rainfall. Thunderstorms are most likely this afternoon and evening, so any outdoor events tonight will have the potential for lightning delays.

CONFIDENCE AND ALTERNATE SCENARIOS

Confidence remains high that the entire area will end up receiving 1 to 3 inches of storm storm rainfall through early Saturday morning. Confidence is increasing that the highest amounts will be in the southern areas of our office's area of responsibility. There is moderate confidence that we believe there will be a band of locally heavy rain in areas to the west, but confidence is low as to exact locations.

Note: please remember these emails are intended for planning purposes, typically before the events begin. Please see the following websites for tactical information, or contact us at the office.

USEFUL WEBSITES:

National Weather Service Fort Worth home page

National Weather Service Fort Worth Graphical Warnings

Hourly Forecasts (click to choose your location):

National Weather Service Enhanced Decision Support Page (experimental)

National Weather Service Fort Worth Hazard Pages

Emergency Management Weather Briefing Page

West Gulf River Forecast Center HydroMet Discussion (issued daily by 11 AM)

Hydro Decision Support Tool at WGRFC to create a specific map

As usual, if you have any concerns, please do not hesitate to contact us.
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Re: Texas Fall-2015

#1503 Postby dhweather » Fri Oct 30, 2015 1:30 pm

Ntxw wrote:Bryan/College Station heads up

TORNADO WARNING
TXC041-051-301845-
/O.NEW.KHGX.TO.W.0032.151030T1808Z-151030T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
108 PM CDT FRI OCT 30 2015

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* TORNADO WARNING FOR...
WEST CENTRAL BRAZOS COUNTY IN SOUTHEASTERN TEXAS...
NORTHEASTERN BURLESON COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 145 PM CDT

* AT 107 PM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR CALDWELL...
MOVING NORTHEAST AT 30 MPH.


HAZARD...DAMAGING TORNADO AND QUARTER SIZE HAIL.

SOURCE...LAW ENFORCEMENT CONFIRMED TORNADO.

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...
NORTHWESTERN COLLEGE STATION...BRYAN...CALDWELL AND KYLE FIELD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW! MOVE TO A
BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A MOBILE HOME...OR
IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.





Watch it here:


https://tvnweather.com/live/chasers/847783557
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#1504 Postby dhweather » Fri Oct 30, 2015 1:37 pm

FWIW - the 0Z GFS is advertising a glancing shot of cold air in 300+ hours - far NE Texas might see its first freeze.

It's only two weeks away!!! :lol:

Image
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Re: Texas Fall-2015

#1505 Postby dhweather » Fri Oct 30, 2015 1:40 pm

As ntxw eluded to, next weeks system might be another big rain event along the I35 corridor.

Image
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#1506 Postby gboudx » Fri Oct 30, 2015 1:41 pm

All I can say is "Wow". From jeff:

Flash Flood Emergency for Onion Creek and San Marcos River.

Persons in these watersheds near the creek or river should move to their rooftops or climb trees immediately!

Tremendous flood waves have been generated by 12-16 inches of rainfall in the last 8 hr along and just west of I-35. Law enforcement and USGS river gages indicate catastrophic rises on these watersheds overtopping and destroying bridges and inundating hundreds of homes. Homes along the river banks will be washed away and destroyed…climb trees to save your life. Do not attempt to flee in a vehicle. Many vehicles have been washed away this morning.

This flood emergency includes the City of San Marcos and all locations along Onion Creek on the south side of Austin.
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Re:

#1507 Postby dhweather » Fri Oct 30, 2015 1:44 pm

gboudx wrote:All I can say is "Wow". From jeff:

Flash Flood Emergency for Onion Creek and San Marcos River.

Persons in these watersheds near the creek or river should move to their rooftops or climb trees immediately!

Tremendous flood waves have been generated by 12-16 inches of rainfall in the last 8 hr along and just west of I-35. Law enforcement and USGS river gages indicate catastrophic rises on these watersheds overtopping and destroying bridges and inundating hundreds of homes. Homes along the river banks will be washed away and destroyed…climb trees to save your life. Do not attempt to flee in a vehicle. Many vehicles have been washed away this morning.

This flood emergency includes the City of San Marcos and all locations along Onion Creek on the south side of Austin.



:eek: unbelievable
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Re: Re:

#1508 Postby weatherdude1108 » Fri Oct 30, 2015 1:51 pm

vbhoutex wrote:
WeatherNewbie wrote:Wimberly is flooding very badly again. They are evacuating along the Blanco. Areas along the river south of there need to be on high alert. Could be a repeat of Memorial Day weekend.

Yep, I have some friends trapped at a B&B in Wimberley, but they are safe or were when I last talked to them 2 hours ago. Terrible situation for that whole area. Shuddering at the NWS AFD!!
Hoping we fare a lot better than your area is as this all moves East.

ANY AUSTIN/HILL COUNTRY AREA MEMBERS READING THIS PLEASE LET US KNOW YOU ARE OK. I am not setting up a separate thread at this point, but may if this continues to evolve and get worse.


I am ok. It has let up quite a bit since before noon. I don't know how much rain I got at my house. I'll check later. I'm certain it is not near the amount in other parts of this area. I'll post more later.
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Re: Re:

#1509 Postby ndale » Fri Oct 30, 2015 1:53 pm

vbhoutex wrote:
WeatherNewbie wrote:Wimberly is flooding very badly again. They are evacuating along the Blanco. Areas along the river south of there need to be on high alert. Could be a repeat of Memorial Day weekend.

Yep, I have some friends trapped at a B&B in Wimberley, but they are safe or were when I last talked to them 2 hours ago. Terrible situation for that whole area. Shuddering at the NWS AFD!!
Hoping we fare a lot better than your area is as this all moves East.

ANY AUSTIN/HILL COUNTRY AREA MEMBERS READING THIS PLEASE LET US KNOW YOU ARE OK. I am not setting up a separate thread at this point, but may if this continues to evolve and get worse.



Ok here, we are above flood levels.
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Re: Re:

#1510 Postby Shoshana » Fri Oct 30, 2015 2:12 pm

ndale wrote:
vbhoutex wrote:
WeatherNewbie wrote:Wimberly is flooding very badly again. They are evacuating along the Blanco. Areas along the river south of there need to be on high alert. Could be a repeat of Memorial Day weekend.

Yep, I have some friends trapped at a B&B in Wimberley, but they are safe or were when I last talked to them 2 hours ago. Terrible situation for that whole area. Shuddering at the NWS AFD!!
Hoping we fare a lot better than your area is as this all moves East.

ANY AUSTIN/HILL COUNTRY AREA MEMBERS READING THIS PLEASE LET US KNOW YOU ARE OK. I am not setting up a separate thread at this point, but may if this continues to evolve and get worse.



Ok here, we are above flood levels.


We're ok here too, above flood levels and on a hill. The worst of the weather has missed us.
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Re: Texas Fall-2015

#1511 Postby weatherdude1108 » Fri Oct 30, 2015 2:14 pm

JDawg512 wrote:
Ntxw wrote:
JDawg512 wrote:People are on the rooftops of their homes in some of those neighborhoods in Southeast Austin. Latest is that Onion Creek could rise just one foot below the all time record crest which occurred almost exactly 2 years ago with the 2013 Halloween Flood. It's possible it could tie it.


Onion creek is already almost a foot over past that crest



Yea very true. The concern is what will be coming up later this afternoon. By the way kxan is doing commercial free coverage for those interested in watching their live stream. Just type kxan.com


Here is the direct link for the live streaming for anyone interested.

http://kxan.com/weather/live-stream-sev ... -coverage/
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Re: Texas Fall-2015

#1512 Postby JDawg512 » Fri Oct 30, 2015 2:26 pm

So they said on the news that the official recording station at Austin-Bergstrom International Airport is under water but an LCRA gauge on the southern edge of the airport showed over 14 inches. :double:

Also earlier the lower level of the control tower at ABIA was flooded and control operations were being issued out of the control tower at Houston Intercontinental. I don't remember a time that something like that has happened before.


My current rain amount is 8.12 in.
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Re: Re:

#1513 Postby CentralTxAggie » Fri Oct 30, 2015 2:30 pm

vbhoutex wrote:
WeatherNewbie wrote:Wimberly is flooding very badly again. They are evacuating along the Blanco. Areas along the river south of there need to be on high alert. Could be a repeat of Memorial Day weekend.

Yep, I have some friends trapped at a B&B in Wimberley, but they are safe or were when I last talked to them 2 hours ago. Terrible situation for that whole area. Shuddering at the NWS AFD!!
Hoping we fare a lot better than your area is as this all moves East.

ANY AUSTIN/HILL COUNTRY AREA MEMBERS READING THIS PLEASE LET US KNOW YOU ARE OK. I am not setting up a separate thread at this point, but may if this continues to evolve and get worse.


Since 0700, 14.11" in our Davis Vantage here in south austin, but all well. sorry if this is a double post...been a hectic day
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#1514 Postby TheAustinMan » Fri Oct 30, 2015 2:31 pm

Quite an extraordinary amount of rainfall has fallen in the Austin area... with Onion Creek rising once again. Check out the chart below showing the height of Onion Creek near ABIA, showing 38.44 ft and well in the major category. The 40.2' record shown on the chart was the crest during the disastrous Halloween floods from 2013, and if the current height is confirmed, today would mark the second highest crest recorded in Onion Creek history.

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Re: Texas Fall-2015

#1515 Postby stormywaves » Fri Oct 30, 2015 2:33 pm

What can Houston expect from this?
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Re: Texas Fall-2015

#1516 Postby Brent » Fri Oct 30, 2015 2:34 pm

The gfs has widespread rain on Sunday again... Not sure if that sunny forecast will verify
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#1517 Postby gboudx » Fri Oct 30, 2015 3:20 pm

Another from jeff:

Austin Bergstrom has recorded 13.58 inches in 6-hrs which exceeds their entire May 2015 total!

Onion Creek at HWY 183 on the south side of Austin is 1 ft from the record flood crest of Halloween 2013 when over 1000 homes were flooded. Currently flowing 117,000 cfs under the HWY 183 bridge.

Extremely Dangerous Flash Flood in Progress:

Onion Creek
San Marcos River
Blanco River
Guadalupe River
Comal River
Cibolo Creek

Colorado River:
LCRA is operating flood gates on Tom Miller Dam due to extensive run-off into the river system below Lake Travis. Current inflows from Barton and Onion Creeks along with gate releases will generate a massive flood wave on the Colorado river below Austin. Persons downstream of Austin on the Colorado River should be prepared for possible flooding tonight (Bastrop and Smithville) and LaGrange on Saturday into Sunday.

Guadalupe River:
Massive flood wave being generated on the Guadalupe River due to inflow from the Blanco and San Marcos Rivers as well as the rainfall just below Canyon Lake of nearly 14 inches. Major flooding is likely along the entire river over the next several days from Caldwell County to the coast.

Discussion:
Models have not and are not handling this situation well at all and have little faith in their forecast solutions going forward tonight. Clearly this air mass is capable of some really big rainfall totals, but where and when is the question. Nothing is screaming big rainfall totals over SE TX tonight, but nothing suggested late evening either. Appears SE TX is being split with one disturbance passing to our north and the other to our south with most of our region staying dry at least for the moment.

Upper trough and lift is starting to approach from the west and expect to see activity begin to increase afternoon dark tonight. I am certainly worried about any potential for cell training and mergers which we clearly see what resulted over central TX, but have zero confidence in where this may happen if it happens at all.

Will maintain the thinking of 2-4 inches widespread with isolated amounts of 6 inches. Any cell training could easily result in much higher totals.

Tornado risk will also continue…although overall tornado activity has waned considerably this afternoon. Increase in nocturnal low level jet could help yield a few low topped supercells overnight.
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#1518 Postby weatherdude1108 » Fri Oct 30, 2015 4:50 pm

4.04 inches recorded so far today on rain sensor at my house. On the light side of most reports around Austin. We missed a lot of that earlier training that south and east Austin got.
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Re: Texas Fall-2015

#1519 Postby Ntxw » Fri Oct 30, 2015 4:52 pm

JDawg512 wrote:So they said on the news that the official recording station at Austin-Bergstrom International Airport is under water but an LCRA gauge on the southern edge of the airport showed over 14 inches. :double:

Also earlier the lower level of the control tower at ABIA was flooded and control operations were being issued out of the control tower at Houston Intercontinental. I don't remember a time that something like that has happened before.


My current rain amount is 8.12 in.


Yes the official airport ASOS station is under water. I mean you can only report records up to a point where it can't be reported anymore right? So rainfall amounts there after about 9" is estimated, but likely 14-16" I'm curious how they will handle the recording once things clear since Bergstrom is KAUS and is official Austin weather data.

Image

Source: EWX twitter page https://twitter.com/nwssanantonio
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Re: Texas Fall-2015

#1520 Postby Brent » Fri Oct 30, 2015 5:07 pm

The climate summary for KAUS has 14.53" today... Fox 4 just said it destroyed the all-time 24-hour rainfall record by 5 inches.
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