Flash Flood Watch 4, NWS Austin/San Antonio, TX

Atascosa County, TX, Bandera County, TX, Bastrop County, TX, Bexar County, TX, Blanco County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, DeWitt County, TX, Dimmit County, TX, Edwards County, TX, Fayette County, TX, Frio County, TX, Gillespie County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Karnes County, TX, Kendall County, TX, Kerr County, TX, Kinney County, TX, Lavaca County, TX, Lee County, TX, Llano County, TX, Maverick County, TX, Medina County, TX, Real County, TX, Travis County, TX, Uvalde County, TX, Val Verde County, TX, Williamson County, TX, Wilson County, TX, Zavala County, TX

654 
WGUS64 KEWX 081258
FFAEWX

Flood Watch
National Weather Service Austin/San Antonio TX
758 AM CDT Sat Sep 8 2018

...HEAVY RAIN AND FLASH FLOODING POSSIBLE THROUGH SUNDAY...

.Locally heavy rainfall may lead to flash flooding through Sunday
for areas along and west of Interstate 35 corridor. A slow-moving
frontal boundary will push across the Hill Country and Edwards 
Plateau throughout the day. Scattered to numerous showers and 
thunderstorms are expected ahead of the frontal boundary. The 
frontal boundary is then forecast to push across the Rio Grande 
Plains this evening. An upper level disturbance across the 
Southern U.S. Plains will also serve to enhance shower and 
thunderstorm development late tonight into Sunday.

Storm total amounts of 1 to 3 inches are possible with isolated
amounts up to 7 inches. The heavy rains should become more
isolated Sunday afternoon, allowing the flash flood concerns to
decrease.

TXZ171>173-183>192-202>206-217>219-228-091400-
/O.CON.KEWX.FF.A.0004.000000T0000Z-180909T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera-
Gillespie-Kendall-Blanco-Hays-Travis-Kinney-Uvalde-Medina-Bexar-
Comal-Maverick-Zavala-Frio-Dimmit-
Including the cities of Llano, Burnet, Georgetown, Del Rio, 
Rocksprings, Leakey, Kerrville, Bandera, Fredericksburg, Boerne, 
Blanco, San Marcos, Austin, Bracketville, Uvalde, Hondo, 
San Antonio, New Braunfels, Eagle Pass, Crystal City, Pearsall, 
and Carrizo Springs
758 AM CDT Sat Sep 8 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* A portion of south central Texas, including the following 
  areas, Bandera, Bexar, Blanco, Burnet, Comal, Dimmit, Edwards, 
  Frio, Gillespie, Hays, Kendall, Kerr, Kinney, Llano, Maverick, 
  Medina, Real, Travis, Uvalde, Val Verde, Williamson, and 
  Zavala. 

* Through Sunday morning

* Widespread rain from abundant tropical moisture and a slow
  moving frontal boundary are expected today along and west of
  Interstate 35. Then later this evening into Sunday, the focus
  for locally heavy rains moves into the I-35 corridor and Rio
  Grande Plains. Storm totals of 1 to 3 inches are possible with
  isolated amounts up to 7 inches. 

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.

&&

$$

643 
WGUS64 KEWX 081933
FFAEWX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Austin/San Antonio TX
233 PM CDT Sat Sep 8 2018

...HEAVY RAIN AND FLASH FLOODING POSSIBLE THROUGH SUNDAY...

.An upper level trough, tropical Gulf air, and a stalling cold 
front will bring rounds of showers and thunderstorms to the region
from this afternoon through Sunday afternoon. The best chances 
for rain will be along and just west of Interstate 35 late tonight
and early Sunday. The storms will taper off from northwest to 
southeast across the area on Sunday. Total rainfall will average 
from 1 to 3 inches, with up to 7 inches possible in spots.

TXZ193-194-207>209-220>225-091800-
/O.EXB.KEWX.FF.A.0004.000000T0000Z-180909T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bastrop-Lee-Guadalupe-Caldwell-Fayette-Atascosa-Wilson-Karnes-
Gonzales-De Witt-Lavaca-
Including the cities of Bastrop, Giddings, Seguin, Lockhart, 
La Grange, Pleasanton, Floresville, Karnes City, Gonzales, Cuero,
and Halletsville
233 PM CDT Sat Sep 8 2018

...FLASH FLOOD WATCH IN EFFECT THROUGH SUNDAY AFTERNOON...

The National Weather Service in Austin/San Antonio has expanded
the

* Flash Flood Watch to include a portion of south central Texas, 
  including the following areas, Atascosa, Bastrop, Caldwell, De 
  Witt, Fayette, Gonzales, Guadalupe, Karnes, Lavaca, Lee, and 
  Wilson. 

* Through Sunday afternoon

* Widespread rain from abundant tropical moisture and a slow
  moving frontal boundary are expected tonight and Sunday along
  and east of Interstate 35. Total rainfall of 1 to 3 inches is 
  expected, with isolated amounts up to 7 inches.
  
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.

&&

$$

TXZ171>173-183>192-202>206-217>219-228-091800-
/O.EXT.KEWX.FF.A.0004.000000T0000Z-180909T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera-
Gillespie-Kendall-Blanco-Hays-Travis-Kinney-Uvalde-Medina-Bexar-
Comal-Maverick-Zavala-Frio-Dimmit-
Including the cities of Llano, Burnet, Georgetown, Del Rio, 
Rocksprings, Leakey, Kerrville, Bandera, Fredericksburg, Boerne, 
Blanco, San Marcos, Austin, Bracketville, Uvalde, Hondo, 
San Antonio, New Braunfels, Eagle Pass, Crystal City, Pearsall, 
and Carrizo Springs
233 PM CDT Sat Sep 8 2018

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH SUNDAY AFTERNOON...

The Flash Flood Watch is now in effect for

* A portion of south central Texas, including the following 
  areas, Bandera, Bexar, Blanco, Burnet, Comal, Dimmit, Edwards, 
  Frio, Gillespie, Hays, Kendall, Kerr, Kinney, Llano, Maverick, 
  Medina, Real, Travis, Uvalde, Val Verde, Williamson, and 
  Zavala. 

* Through Sunday afternoon

* Widespread rain from abundant tropical moisture and a slow
  moving frontal boundary are expected across the entire area tonight,
  and along and east of Interstate 35 on Sunday. Total rainfall 
  of 1 to 3 inches is expected, with isolated amounts up to 7 
  inches.

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.

&&

$$

073 
WGUS64 KEWX 090834
FFAEWX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Austin/San Antonio TX
334 AM CDT Sun Sep 9 2018

...HEAVY RAIN AND FLASH FLOODING POSSIBLE TODAY...

.A weak upper level disturbance, abundant moisture and a slow 
moving cold front will continue to bring additional showers and 
thunderstorms to south central Texas today. The best chance for 
heavy rainfall and possible flash flooding will be across portions
of the southern Hill Country and along and east of the Interstate
35 corridor. This does include the San Antonio and Austin metro 
areas. Additional rainfall amounts today will average from 1 to 2 
inches, with up to 5 inches possible in spots.

TXZ171-172-183-184-186-188-090945-
/O.CAN.KEWX.FF.A.0004.000000T0000Z-180909T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Llano-Burnet-Val Verde-Edwards-Kerr-Gillespie-
Including the cities of Llano, Burnet, Del Rio, Rocksprings, 
Kerrville, and Fredericksburg
334 AM CDT Sun Sep 9 2018

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for a portion of south central Texas has
been cancelled. While a few showers and storms could produce brief
heavy rainfall, the threat for widespread, heavy rain has
diminished. 

$$

TXZ173-185-187-189>194-202>209-217>225-228-100000-
/O.EXT.KEWX.FF.A.0004.000000T0000Z-180910T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Williamson-Real-Bandera-Kendall-Blanco-Hays-Travis-Bastrop-Lee-
Kinney-Uvalde-Medina-Bexar-Comal-Guadalupe-Caldwell-Fayette-
Maverick-Zavala-Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-
Lavaca-Dimmit-
Including the cities of Georgetown, Leakey, Bandera, Boerne, 
Blanco, San Marcos, Austin, Bastrop, Giddings, Bracketville, 
Uvalde, Hondo, San Antonio, New Braunfels, Seguin, Lockhart, 
La Grange, Eagle Pass, Crystal City, Pearsall, Pleasanton, 
Floresville, Karnes City, Gonzales, Cuero, Halletsville, 
and Carrizo Springs
334 AM CDT Sun Sep 9 2018

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH THIS EVENING...

The Flash Flood Watch is now in effect for

* A portion of south central Texas, including the following 
  areas, Atascosa, Bandera, Bastrop, Bexar, Blanco, Caldwell, 
  Comal, De Witt, Dimmit, Fayette, Frio, Gonzales, Guadalupe, 
  Hays, Karnes, Kendall, Kinney, Lavaca, Lee, Maverick, Medina, 
  Real, Travis, Uvalde, Williamson, Wilson, and Zavala. 

* Through this evening

* Widespread rain from abundant moisture and a slow moving frontal
  boundary are today across the southern portions of the Hill
  Country and along and east of the Interstate 35 corridor.
  Additional rainfall amounts of 1 to 2 inches, with isolated
  amounts up to 5 inches are expected.  

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.

&&

$$

781 
WGUS64 KEWX 092029
FFAEWX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Austin/San Antonio TX
329 PM CDT Sun Sep 9 2018

...HEAVY RAIN AND FLASH FLOODING POSSIBLE THROUGH MONDAY...

.The combination of an upper level disturbance moving across the
area coupled with rich tropical moisture and a weak frontal
boundary along the Coastal Plains will allow for scattered to
numerous showers and isolated thunderstorms to develop across 
southern part of the Rio Grande and areas along Interstate 35.
Shower activity and intensity should decrease Monday morning with
heaviest rain focused across the Coastal Plains.

Heavy rain is not expected to have a big impact across the far
southeast counties of South Central Texas through the evening
period and therefore, the Flash Flood Watch for Fayette, Karnes,
Gonzales, Dewitt and Lavaca Counties.

TXZ209-222>225-092130-
/O.CAN.KEWX.FF.A.0004.000000T0000Z-180910T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fayette-Karnes-Gonzales-De Witt-Lavaca-
Including the cities of La Grange, Karnes City, Gonzales, Cuero, 
and Halletsville
329 PM CDT Sun Sep 9 2018

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for a portion of south central Texas has
been cancelled. Heavy rain is not expected to have a big impact
across the far southeast counties of South Central Texas through 
the evening period and therefore, the Flash Flood Watch for 
Fayette, Karnes, Gonzales, Dewitt and Lavaca Counties.

$$

TXZ173-185-187-189>194-202>208-217>221-228-101400-
/O.EXT.KEWX.FF.A.0004.000000T0000Z-180910T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Williamson-Real-Bandera-Kendall-Blanco-Hays-Travis-Bastrop-Lee-
Kinney-Uvalde-Medina-Bexar-Comal-Guadalupe-Caldwell-Maverick-
Zavala-Frio-Atascosa-Wilson-Dimmit-
Including the cities of Georgetown, Leakey, Bandera, Boerne, 
Blanco, San Marcos, Austin, Bastrop, Giddings, Bracketville, 
Uvalde, Hondo, San Antonio, New Braunfels, Seguin, Lockhart, 
Eagle Pass, Crystal City, Pearsall, Pleasanton, Floresville, 
and Carrizo Springs
329 PM CDT Sun Sep 9 2018

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH MONDAY MORNING...

The Flash Flood Watch is now in effect for

* A portion of south central Texas, including the following 
  areas, Atascosa, Bandera, Bastrop, Bexar, Blanco, Caldwell, 
  Comal, Dimmit, Frio, Guadalupe, Hays, Kendall, Kinney, Lee, 
  Maverick, Medina, Real, Travis, Uvalde, Williamson, Wilson, 
  and Zavala. 

* Through Monday morning

* Moderate to heavy rain from abundant tropical moisture, a slow
  moving frontal boundary across the Coastal Plains and an upper
  level disturbance moving across the area tonight is expected to
  affect the southern part of the Rio Grande and parts of
  interstate 35. Additional new rainfall amounts of one half inch
  are possible with isolated 3 to 5 inches through the period. Due
  to the sensitivity of wet grounds over the area per recent
  episodes of heavy rain, any shower activity could have an impact
  over those locations resulting in minor flash flooding.


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.

&&

$$

204 
WGUS64 KEWX 092117 CCA
FFAEWX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch...CORRECTED
National Weather Service Austin/San Antonio TX
417 PM CDT Sun Sep 9 2018

...HEAVY RAIN AND FLASH FLOODING POSSIBLE THROUGH MONDAY 
MORNING...

.Another disturbance is expected to develop showers and
thunderstorms with locally heavy rainfall over the Rio Grande 
Plains and I-35 corridor counties of South Central Texas. Highest
rain chances are for late tonight with isolated heavy rains of 3
to 5 inches possible. Rain chances and intensities are expected 
to decrease after daybreak Monday.

TXZ209-222>225-092130-
/O.CAN.KEWX.FF.A.0004.000000T0000Z-180910T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fayette-Karnes-Gonzales-De Witt-Lavaca-
Including the cities of La Grange, Karnes City, Gonzales, Cuero, 
and Halletsville
417 PM CDT Sun Sep 9 2018

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for Fayette, Karnes, Gonzales, Dewitt and 
Lavaca Counties in South Central Texas has been cancelled. Despite
a continued high chance of rain, the threat for heavy rain and
flooding has decreased across the far southeast counties of South
Central Texas.

$$

TXZ173-185-187-189>194-202>208-217>221-228-101400-
/O.COR.KEWX.FF.A.0004.000000T0000Z-180910T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Williamson-Real-Bandera-Kendall-Blanco-Hays-Travis-Bastrop-Lee-
Kinney-Uvalde-Medina-Bexar-Comal-Guadalupe-Caldwell-Maverick-
Zavala-Frio-Atascosa-Wilson-Dimmit-
Including the cities of Georgetown, Leakey, Bandera, Boerne, 
Blanco, San Marcos, Austin, Bastrop, Giddings, Bracketville, 
Uvalde, Hondo, San Antonio, New Braunfels, Seguin, Lockhart, 
Eagle Pass, Crystal City, Pearsall, Pleasanton, Floresville, 
and Carrizo Springs
417 PM CDT Sun Sep 9 2018

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH MONDAY MORNING...

The Flash Flood Watch is now in effect for

* A portion of south central Texas, including the following 
  areas, Atascosa, Bandera, Bastrop, Bexar, Blanco, Caldwell, 
  Comal, Dimmit, Frio, Guadalupe, Hays, Kendall, Kinney, Lee, 
  Maverick, Medina, Real, Travis, Uvalde, Williamson, Wilson, 
  and Zavala. 

* Through Monday morning

* Moderate to heavy rain from abundant tropical moisture, a slow
  moving frontal boundary across the Coastal Plains and an upper
  level disturbance moving across the area tonight is expected to
  affect the Rio Grande Plains and the Interstate 35 Corridor. 
  Additional new rainfall amounts of one half inch are possible 
  with isolated 3 to 5 inches through the period. Due to the 
  sensitivity of wet grounds over the area per recent episodes of 
  heavy rain, any shower activity could have an impact over those 
  locations resulting in minor flash flooding.


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.

&&

$$

182 
WGUS64 KEWX 100908
FFAEWX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Austin/San Antonio TX
408 AM CDT Mon Sep 10 2018

...HEAVY RAIN AND FLASH FLOODING POSSIBLE THROUGH EARLY THIS
AFTERNOON...

.An upper level disturbance is expected to produce scattered to
numerous showers and thunderstorms today from near San Antonio
westward into the Rio Grande plains south of Del Rio. Some of
these showers and storms will produce locally heavy rainfall.
Soils are saturated across much of the region and any additional
heavy rain will result in a greater risk for flash flooding. 
Rainfall amounts up to 2 inches are expected, with a few spots 
approaching 4 inches, especially along and west of the the I-35 
corridor south of San Antonio. The focus for heavy rainfall is
expected to shift southward toward the middle Texas coast this
afternoon. 

TXZ173-185-187-189>194-206>208-221-101015-
/O.CAN.KEWX.FF.A.0004.000000T0000Z-180910T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Williamson-Real-Bandera-Kendall-Blanco-Hays-Travis-Bastrop-Lee-
Comal-Guadalupe-Caldwell-Wilson-
Including the cities of Georgetown, Leakey, Bandera, Boerne, 
Blanco, San Marcos, Austin, Bastrop, Giddings, New Braunfels, 
Seguin, Lockhart, and Floresville
408 AM CDT Mon Sep 10 2018

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for a portion of south central Texas has
been cancelled. Rain chances will continue across the region
today. However, the threat for heavy rain and flash flooding has
decreased. 

$$

TXZ202>205-217>220-228-101800-
/O.EXT.KEWX.FF.A.0004.000000T0000Z-180910T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kinney-Uvalde-Medina-Bexar-Maverick-Zavala-Frio-Atascosa-Dimmit-
Including the cities of Bracketville, Uvalde, Hondo, San Antonio,
Eagle Pass, Crystal City, Pearsall, Pleasanton, 
and Carrizo Springs
408 AM CDT Mon Sep 10 2018

...FLASH FLOOD WATCH NOW IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

The Flash Flood Watch is now in effect for

* A portion of south central Texas, including the following 
  areas, Atascosa, Bexar, Dimmit, Frio, Kinney, Maverick, 
  Medina, Uvalde, and Zavala. 

* Until 1 PM CDT this afternoon

* Scattered to numerous showers and thunderstorms will continue
  into early this afternoon. Additional rainfall amounts up to two
  inches with isolated amounts near 4 inches are possible. Due to
  the sensitivity of wet grounds over the area, any additional
  heavy rains will result in quick run-off and an increased risk
  for flash flooding. 

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.

&&

$$

131 
WGUS64 KEWX 101534
FFAEWX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Austin/San Antonio TX
1034 AM CDT Mon Sep 10 2018

...LOCALIZED FLASH FLOODING POSSIBLE THROUGH THIS AFTERNOON...

.Scattered to numerous showers and thunderstorms will continue 
through this evening from near San Antonio westward into the Rio 
Grande plains south of Del Rio. Some of these showers and storms 
will produce locally heavy rainfall. Soils are saturated across 
much of the region and any additional heavy rain will result in a 
greater risk for flash flooding. Rainfall amounts up to 2 inches 
are expected, with a few spots approaching 4 inches, especially 
along and west of the the I-35 corridor south of San Antonio. The
focus for heavy rainfall is expected to shift southward toward 
the middle Texas coast during the afternoon hours. Should the 
threat for flash flooding end sooner than this evening, the flash 
flood watch may be cancelled early.

TXZ202>205-217>220-228-110000-
/O.EXT.KEWX.FF.A.0004.000000T0000Z-180911T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kinney-Uvalde-Medina-Bexar-Maverick-Zavala-Frio-Atascosa-Dimmit-
Including the cities of Bracketville, Uvalde, Hondo, San Antonio,
Eagle Pass, Crystal City, Pearsall, Pleasanton, 
and Carrizo Springs
1034 AM CDT Mon Sep 10 2018

...FLASH FLOOD WATCH NOW IN EFFECT UNTIL 7 PM CDT THIS EVENING...

The Flash Flood Watch is now in effect for

* A portion of south central Texas, including the following 
  areas, Atascosa, Bexar, Dimmit, Frio, Kinney, Maverick, 
  Medina, Uvalde, and Zavala. 

* Until 7 PM CDT this evening

* Scattered to numerous showers and thunderstorms will continue
  through the afternoon hours. Additional rainfall amounts up to
  two inches with isolated amounts near 4 inches are possible. Due
  to the sensitivity of wet grounds over the area, any additional
  heavy rains will result in quick run-off and an increased risk
  for flash flooding. 

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.

&&

$$

565 
WGUS64 KEWX 101941
FFAEWX

Flood Watch
National Weather Service Austin/San Antonio TX
241 PM CDT Mon Sep 10 2018

...FLASH FLOOD WATCH IS CANCELLED...

TXZ202>205-217>220-228-102045-
/O.CAN.KEWX.FF.A.0004.000000T0000Z-180911T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kinney-Uvalde-Medina-Bexar-Maverick-Zavala-Frio-Atascosa-Dimmit-
Including the cities of Bracketville, Uvalde, Hondo, San Antonio,
Eagle Pass, Crystal City, Pearsall, Pleasanton, 
and Carrizo Springs
241 PM CDT Mon Sep 10 2018

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for a portion of south central Texas has
been cancelled. Periods of rain are expected to continue through
the afternoon and into the evening hours, however, and localized
flooding issues may still occur.

$$

Area Forecast Discussion...UPDATED
National Weather Service Austin/San Antonio TX
116 AM CDT Sat Sep 8 2018

.UPDATE...
Please see the 06Z aviation forecast discussion below.

&&

.AVIATION...
Some minor changes have been made to the ongoing forecast based on
current radar trends. For the next several hours, it appears DRT will
be most likely to be impacted by any thunderstorm activity and we
will continue to monitor and adjust the forecast as needed. Farther
east, it appears most of the convection should remain to the north
and west of the I-35 terminals. We should see more widespread
convection this afternoon as a cold front moves southward into the
region.

&&

.PREV DISCUSSION... /ISSUED 1042 PM CDT Fri Sep 7 2018/

UPDATE... /Revised PoPs back upward along the Hwy 281 corridor/
As the afternoon and early evening models were largely in error in
showing a decreasing trend over our central and most populous
counties, focus for convection that was shifting slowly north and
west reversed course after several outflow boundaries were generated.
This places new rounds of convection between Hwy 281 and I-35 from
San Antonio to Austin, with the area extending SW from San Antonio along
I-35. Features have been hard to detect, but one concerning feature
noticed is the appearance of an mcv associated with a slow moving
cluster of cells moving north into Frio County. Should this continue
to develop, rapid refresh mesoscale models will probably escalate
the rain potential and a short-fused watch will have to be
considered. These new rounds of convection, while showing abrupt
changes in trends, still remain mostly disorganized and short-lived.
Will continue to consider the larger scale forcing to be the arrival
of the front which should ultimately take over a few hours after
midnight with convection being more concentrated on the post frontal
side (or slightly west of the areas of new evening convection) by
daybreak.

PREV DISCUSSION... /ISSUED 938 PM CDT Fri Sep 7 2018/

UPDATE... /Lowered PoPs along & East of I-35/
Evening cloud activity revealed little to no vertical growth east of
I-35 as a focusing mechanism has taken shape at roughly along a COT
to Boerne to Lago Vista line and drifting slowly northwestward. A
cold front will begin to focus activity along a DRT to ERV to BMQ
line with mesoscale models showing these two focusing mechanisms
merging together early Saturday morning. The focus for potential
heavy rain should thus be mainly north of a line from Eagle Pass to
Comfort to Marble Falls where isolated overnight/early morning totals
could exceed 3 inches in isolated spots. Heaviest storms should be
more shifted toward the Rio Grande where cell motions have a chance
to be slow to near stationary. Will continue to monitor for possible
flash flood threats, but there are not many mesoscale solutions
generating significant areas of excessive rainfall.

PREV DISCUSSION... /ISSUED 646 PM CDT Fri Sep 7 2018/

UPDATE...
00Z Aviation forecast below.

AVIATION...
Isolated SHRAs and TSTMs ongoing early this evening across South
Central Texas. There should generally be a downward trend in
activity through sunset, with the exception of possibly near the Rio
Grande. Hi resolution models are in general agreement of an increase
in SHRAs and TSTMs 03Z-06Z near the Rio Grande, becoming numerous to
widespread overnight and into Saturday morning across the Rio Grande
and western Hill Country. This activity will impact the DRT terminal
through much of the overnight and into Saturday morning. Have gone
with VCTS after 04Z at DRT with prevailing SHRAs/TSTMs after 08Z.
Farther east could see re-development of isolated SHRAs overnight
across the I-35 and have included VCSH in SAT/SSF/AUS TAFs. Better
chances for TSRAs for eastern Hill Country and portions of I-35
corridor will come Saturday afternoon.

MVFR ceilings are forecast to develop again at SAT/SSF/AUS 06Z-08Z
and persist through 15Z. Could be some isolated locations that reach
IFR ceilings. MVFR ceilings are also possible at DRT in precip. Winds
generally S-SW around 5 kts tonight through Saturday morning at
SAT/SSF/AUS. A weak N wind will develop late Saturday afternoon and
night at these sites. SE wind around 5 kts at DRT this evening is
forecast to become NE overnight behind weak cold front and persist
through the day Saturday.

PREV DISCUSSION... /ISSUED 319 PM CDT Fri Sep 7 2018/

SHORT TERM (Tonight through Saturday Night)...
A complicated forecast is expected to unfold for South Central Texas
during the short term portion of the forecast. Afternoon surface
analysis shows a series of boundaries draped across Texas this
afternoon, with a slow-moving cold front extending from Presidio
towards Abilene and up into Gainesville. The front has shown some
southeastward movement over the past few hours across I-20, aided by
outflow from convective cells within the line and a gradual shifting
of a mid-level trough over the Southern Plains. Based on current
radar trends and consensus of high resolution guidance, expect this
boundary to continue to slowly sag into the southern Hill Country
over the next 6-18 hours with showers and thunderstorms maintaining
themselves along the line in response to forcing from the parent mid-
level trough. Ahead of this front, diurnally driven convection this
afternoon will persist through sunset but likely taper off as
instability wanes.

Despite model consistency on the frontal movement, timing
consistency remains somewhat poor with guidance advertising the front
reaching the I-35 corridor anywhere between after midnight tonight
and sometime Saturday afternoon. Based on the current fast bias of
high resolution guidance and simple extrapolation showing arrival by
mid-morning, have slowed down the progression to have the front near
the I-35 corridor tomorrow morning. Warm air advection ahead of the
front may encourage showers to linger during the overnight hours
across the Coastal Plains, but an overall break is expected ahead of
the front overnight east of I-35. Rain chances will increase from
north to south early Saturday morning as the cold front reaches South
Central Texas. Periods of showers and thunderstorms will persist
across the region during the day Saturday with totals generally in
the 1-2 inch range before the day is out. Locally higher amounts will
be possible in convection along the line on Saturday and may result
in at least minor or nuisance flooding.

The front is expected to move very little Saturday night as the
parent trough axis digs farther south towards Mexico, with vorticity
maxima translating across the region in a west/southwest flow aloft
allowing for showers and thunderstorms to persist into the overnight
hours. Fairly unidirectional low and mid level wind profiles oriented
along the frontal boundary combined with the forcing from the mid-
level trough may potentially increase the threat for heavy rain
Saturday night as atmospheric moisture remains high (precipitable
water values around 2 inches). Conditions are favorable for flooding
or flash flooding to occur, but will be so dependent on placement of
the front and any other mesoscale boundaries... have held off on any
flash flood watch issuance at this time. One may be needed at some
point Saturday or Saturday night depending on trends, however.

LONG TERM (Sunday through Friday)...
The cold front begins to clear the region during the day on Sunday
as the mid-level trough axis swings east, but lingering Gulf moisture
will allow for the potential of locally heavy rain to persist across
the Coastal Plains before the front exits the region. Drier air
moving in behind the front will result in rain chances decreasing for
the region during the early to middle part of next week with
temperatures near seasonal normals.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              89  73  86  71  88 /  50  50  60  30  20
Austin Bergstrom Intl Airport  89  73  85  70  88 /  50  50  60  30  20
New Braunfels Muni Airport     89  72  85  71  87 /  50  60  70  40  30
Burnet Muni Airport            84  70  84  68  85 /  60  50  50  20  20
Del Rio Intl Airport           82  71  84  70  86 /  60  50  60  20  30
Georgetown Muni Airport        87  71  86  68  87 /  60  50  50  20  20
Hondo Muni Airport             87  72  84  70  86 /  50  60  70  40  30
San Marcos Muni Airport        89  72  85  70  87 /  50  50  70  30  30
La Grange - Fayette Regional   92  73  87  72  88 /  50  50  60  40  40
San Antonio Intl Airport       89  74  84  72  87 /  50  60  70  40  30
Stinson Muni Airport           90  75  85  72  87 /  40  60  70  40  40

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
None.
&&

Mesoscale/Aviation...Platt
Synoptic/Grids...17

Hazardous Weather Outlook
National Weather Service Austin/San Antonio TX
500 AM CDT Fri Sep 7 2018

TXZ171>173-183>194-202>209-217>225-228-081000-
Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera-
Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Lee-Kinney-Uvalde-
Medina-Bexar-Comal-Guadalupe-Caldwell-Fayette-Maverick-Zavala-
Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca-Dimmit-
500 AM CDT Fri Sep 7 2018

This Hazardous Weather Outlook is for South-Central Texas..

.DAY ONE...Today And Tonight.

Scattered to numerous showers and thunderstorms are expected
across South Central Texas today and tonight. Isolated areas of
heavy rainfall could lead to flooding mainly across areas that
have had significant rains recently. Wind gusts up to 40 mph are
also possible in the stronger storms.

A Flash Flood Watch may be necessary across portions of south
central Texas tonight.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Scattered to numerous showers and thunderstorms are possible
across South Central Texas through Sunday. Isolated areas of
heavy rainfall could lead to flooding mainly across areas that
have had significant rains recently. Wind gusts up to 40 mph are
possible in the stronger storms.

Showers and thunderstorms will gradually become less numerous
Monday through Wednesday. Locally heavy rains may cause some minor
flooding.

.SPOTTER INFORMATION STATEMENT...

While spotter activation is not anticipated, any reports of heavy
rainfall or flooding are appreciated.