Alert archive / Texas / Flash Flood Watches in 2018

Flash Flood Watch 5, NWS Austin/San Antonio, TX

September 13, 201826 counties in Texas

NWS Austin/San Antonio, TX issued this flash flood watch at Sep 13, 2018, 2:43 PM CDT for 26 counties in Texas. It took effect at Sep 14, 2018, 7:00 AM CDT. It was in force for 60 hr.

The area

The counties it named.

The facts

Issued
Sep 13, 2018, 2:43 PM CDT (19:43 UTC)
In effect from
Sep 14, 2018, 7:00 AM CDT
Expired
Sep 16, 2018, 7:00 PM CDT
In force
60 hr
Issued by
NWS Austin/San Antonio, TX
Flood severity
None
All 26 counties

Atascosa County, TX, Bandera County, TX, Bexar County, TX, Blanco County, TX, Caldwell County, TX, Comal County, TX, DeWitt County, TX, Dimmit County, TX, Edwards 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, Maverick County, TX, Medina County, TX, Real County, TX, Uvalde County, TX, Val Verde County, TX, Wilson County, TX, Zavala County, TX

The radar

The Austin/San Antonio radar (KEWX), 86 km from the middle of the area, began a volume at 19:45 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Del Rio, TX (KDLF), launched 12:00Z, 7.7 hours before the alert went out and 191 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Del Rio, TX at 12:00Z on 2018-09-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 226 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 12:00Z on 2018-09-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
226 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
619 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

046 
WGUS64 KEWX 131943
FFAEWX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Austin/San Antonio TX
243 PM CDT Thu Sep 13 2018

...LOCALLY HEAVY RAINFALL LEADING TO FLASH FLOODING POSSIBLE
FRIDAY THROUGH SATURDAY...

.Deep moisture, associated with a tropical disturbance over the
western Gulf of Mexico, will move into South Central Texas on
Friday and persist through the weekend. Showers and thunderstorms
will produce periods of tropical downpours during this time. 
There is the potential for some bands of heavier rainfall to 
develop, but it is currently difficult to pinpoint exactly where.
Much of the region is near-saturated from recent rainfall, and 
any additional heavy rainfall could quickly lead to flash 
flooding. There is a potential the watch could be expanded further
north or west.

TXZ185>187-189-202>207-217>225-228-141000-
/O.NEW.KEWX.FF.A.0005.180914T1200Z-180916T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Real-Kerr-Bandera-Kendall-Kinney-Uvalde-Medina-Bexar-Comal-
Guadalupe-Maverick-Zavala-Frio-Atascosa-Wilson-Karnes-Gonzales-
De Witt-Lavaca-Dimmit-
Including the cities of Leakey, Kerrville, Bandera, Boerne, 
Bracketville, Uvalde, Hondo, San Antonio, New Braunfels, Seguin, 
Eagle Pass, Crystal City, Pearsall, Pleasanton, Floresville, 
Karnes City, Gonzales, Cuero, Halletsville, and Carrizo Springs
243 PM CDT Thu Sep 13 2018

...FLASH FLOOD WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
SATURDAY EVENING...

The National Weather Service in Austin/San Antonio has issued a

* Flash Flood Watch for a portion of south central Texas, 
  including the following areas, Atascosa, Bandera, Bexar, 
  Comal, De Witt, Dimmit, Frio, Gonzales, Guadalupe, Karnes, 
  Kendall, Kerr, Kinney, Lavaca, Maverick, Medina, Real, Uvalde, 
  Wilson, and Zavala. 

* From Friday morning through Saturday evening

* Scattered to numerous showers and thunderstorms will impact the
  region. Between 2 and 4 inches of rainfall, with isolated
  pockets up to 8 inches, are possible. Due to sensitivity of
  nearly-saturated grounds over the area, any additional heavy
  rains will result in quick run-off and an increased risk for 
  flash flooding.

* Flooding of low water crossings and urban areas is possible. If
  you encounter a flooded roadway, Turn Around, Don't Drown!

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.

&&

$$
7 follow-up statements
441 
WGUS64 KEWX 140828
FFAEWX

Flood Watch
National Weather Service Austin/San Antonio TX
328 AM CDT Fri Sep 14 2018

...LOCALLY HEAVY RAINFALL LEADING TO FLASH FLOODING POSSIBLE
TODAY THROUGH SATURDAY...

.A disorganized tropical disturbance over the western Gulf of 
Mexico, will move into South Central Texas later today and bring a
surge of deep tropical moisture into South Central Texas through 
the weekend. Showers and thunderstorms will produce periods of 
tropical downpours through this weekend. There is the potential 
for some bands of heavier rainfall to develop, but it is currently
difficult to pinpoint exactly where. Much of the region is near- 
saturated from recent rainfall, and any additional heavy rainfall 
could quickly lead to flash flooding. There is a potential the 
watch could be expanded further north or west. 

TXZ185>187-189-202>207-217>225-228-142100-
/O.CON.KEWX.FF.A.0005.180914T1200Z-180916T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Real-Kerr-Bandera-Kendall-Kinney-Uvalde-Medina-Bexar-Comal-
Guadalupe-Maverick-Zavala-Frio-Atascosa-Wilson-Karnes-Gonzales-
De Witt-Lavaca-Dimmit-
Including the cities of Leakey, Kerrville, Bandera, Boerne, 
Bracketville, Uvalde, Hondo, San Antonio, New Braunfels, Seguin, 
Eagle Pass, Crystal City, Pearsall, Pleasanton, Floresville, 
Karnes City, Gonzales, Cuero, Halletsville, and Carrizo Springs
328 AM CDT Fri Sep 14 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH SATURDAY EVENING...

The Flash Flood Watch continues for

* A portion of south central Texas, including the following 
  areas, Atascosa, Bandera, Bexar, Comal, De Witt, Dimmit, Frio, 
  Gonzales, Guadalupe, Karnes, Kendall, Kerr, Kinney, Lavaca, 
  Maverick, Medina, Real, Uvalde, Wilson, and Zavala. 

* From 7 AM CDT this morning through Saturday evening

* Scattered to numerous showers and thunderstorms will impact the
  region. Widespread 1 to 3 inches of rainfall are expected
  through Saturday evening, with isolated pockets up to 5 inches
  possible. Due to sensitivity of nearly-saturated grounds over 
  the area, any additional heavy rains will result in quick run- 
  off and an increased risk for flash flooding. 

* Flooding of low water crossings and urban areas is possible. 
  If you encounter a flooded roadway, Turn Around, Don't Drown! 

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.

&&

$$
334 
WGUS64 KEWX 141910
FFAEWX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Austin/San Antonio TX
210 PM CDT Fri Sep 14 2018

...LOCALLY HEAVY RAINFALL LEADING TO FLASH FLOODING POSSIBLE
TODAY THROUGH SATURDAY...

.A disorganized tropical disturbance over the western Gulf of
Mexico, will move into South Central Texas later tonight through
Saturday night and bring a surge of deep tropical moisture into
the region. Showers and thunderstorms will produce periods of 
tropical downpours through this weekend. There is the potential 
for some bands of heavier rainfall to develop, but it is currently
difficult to pinpoint exactly where. Much of the region is near- 
saturated from recent rainfall, and any additional heavy rainfall 
could quickly lead to flash flooding. 

TXZ183-184-151000-
/O.EXB.KEWX.FF.A.0005.000000T0000Z-180916T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Val Verde-Edwards-
Including the cities of Del Rio and Rocksprings
210 PM CDT Fri Sep 14 2018

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

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, Edwards and Val Verde. 

* Through Sunday morning

* Scattered to numerous showers and thunderstorms will impact the
  region. Widespread 1 to 3 inches of rainfall are expected
  through Saturday night, with isolated pockets near 7 inches 
  possible. Due to sensitivity of nearly-saturated grounds over 
  the area, any additional heavy rains will result in quick run- 
  off and an increased risk for flash flooding. 

* Flooding of low water crossings and urban areas is possible. 
  If you encounter a flooded roadway, Turn Around, Don't Drown! 

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.

&&

$$

TXZ188-190-191-208-151000-
/O.EXA.KEWX.FF.A.0005.000000T0000Z-180916T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Gillespie-Blanco-Hays-Caldwell-
Including the cities of Fredericksburg, Blanco, San Marcos, 
and Lockhart
210 PM CDT Fri Sep 14 2018

...FLASH FLOOD WATCH IN EFFECT THROUGH SATURDAY EVENING...

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, Blanco, Caldwell, Gillespie, 
  and Hays. 

* Through Saturday evening

* Scattered to numerous showers and thunderstorms will impact the
  region. Widespread 1 to 3 inches of rainfall are expected
  through Saturday evening, with isolated pockets near 7 inches 
  possible. Due to sensitivity of nearly-saturated grounds over 
  the area, any additional heavy rains will result in quick run- 
  off and an increased risk for flash flooding. 

* Flooding of low water crossings and urban areas is possible. 
  If you encounter a flooded roadway, Turn Around, Don't Drown! 

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.

&&

$$

TXZ185-202-203-217-218-228-151000-
/O.EXT.KEWX.FF.A.0005.000000T0000Z-180916T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Real-Kinney-Uvalde-Maverick-Zavala-Dimmit-
Including the cities of Leakey, Bracketville, Uvalde, Eagle Pass,
Crystal City, and Carrizo Springs
210 PM CDT Fri Sep 14 2018

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

The Flash Flood Watch is now in effect for

* A portion of south central Texas, including the following 
  areas, Dimmit, Kinney, Maverick, Real, Uvalde, and Zavala. 

* Through Sunday morning

* Scattered to numerous showers and thunderstorms will impact the
  region. Widespread 1 to 3 inches of rainfall are expected
  through Saturday night, with isolated pockets near 7 inches 
  possible. Due to sensitivity of nearly-saturated grounds over 
  the area, any additional heavy rains will result in quick run- 
  off and an increased risk for flash flooding. 

* Flooding of low water crossings and urban areas is possible. 
  If you encounter a flooded roadway, Turn Around, Don't Drown! 

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.

&&

$$

TXZ186-187-189-204>207-219>225-151000-
/O.CON.KEWX.FF.A.0005.000000T0000Z-180916T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kerr-Bandera-Kendall-Medina-Bexar-Comal-Guadalupe-Frio-Atascosa-
Wilson-Karnes-Gonzales-De Witt-Lavaca-
Including the cities of Kerrville, Bandera, Boerne, Hondo, 
San Antonio, New Braunfels, Seguin, Pearsall, Pleasanton, 
Floresville, Karnes City, Gonzales, Cuero, and Halletsville
210 PM CDT Fri Sep 14 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY EVENING...

The Flash Flood Watch continues for

* A portion of south central Texas, including the following 
  areas, Atascosa, Bandera, Bexar, Comal, De Witt, Frio, 
  Gonzales, Guadalupe, Karnes, Kendall, Kerr, Lavaca, Medina, 
  and Wilson. 

* Through Saturday evening

* Scattered to numerous showers and thunderstorms will impact the
  region. Widespread 1 to 3 inches of rainfall are expected
  through Saturday evening, with isolated pockets near 7 inches 
  possible. Due to sensitivity of nearly-saturated grounds over 
  the area, any additional heavy rains will result in quick run- 
  off and an increased risk for flash flooding. 

* Flooding of low water crossings and urban areas is possible. 
  If you encounter a flooded roadway, Turn Around, Don't Drown! 

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.

&&

$$
694 
WGUS64 KEWX 150837
FFAEWX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Austin/San Antonio TX
337 AM CDT Sat Sep 15 2018

...LOCALLY HEAVY RAINFALL LEADING TO FLASH FLOODING POSSIBLE
TODAY AND SUNDAY...

.Bands of showers and thunderstorms will produce periods of 
tropical downpours through this weekend. When and where these
bands will develop is difficult to pinpoint, but the threat for
heavy rainfall from them will persist as long as an associated 
area of low pressure lingers in southern Texas. Much of the watch
area is near-saturated from recent rainfall, and any additional 
heavy rainfall could quickly lead to flash flooding.

TXZ186>189-204-205-219-220-161200-
/O.EXT.KEWX.FF.A.0005.000000T0000Z-180916T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kerr-Bandera-Gillespie-Kendall-Medina-Bexar-Frio-Atascosa-
Including the cities of Kerrville, Bandera, Fredericksburg, 
Boerne, Hondo, San Antonio, Pearsall, and Pleasanton
337 AM CDT Sat Sep 15 2018

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

The Flash Flood Watch is now in effect for

* A portion of south central Texas, including the following 
  areas, Atascosa, Bandera, Bexar, Frio, Gillespie, Kendall, 
  Kerr, and Medina. 

* Through Sunday morning

* Scattered to numerous showers and thunderstorms will impact 
  the region. Widespread 1 to 3 inches of rainfall are expected 
  through Saturday evening, with isolated pockets near 7 inches 
  possible. Due to sensitivity of nearly-saturated grounds over 
  the area, any additional heavy rains will result in quick run- 
  off and an increased risk for flash flooding. 

* Flooding of low water crossings and urban areas is possible. 
  If you encounter a flooded roadway, Turn Around, Don't Drown! 

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.

&&

$$

TXZ183>185-202-203-217-218-228-161200-
/O.CON.KEWX.FF.A.0005.000000T0000Z-180916T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Val Verde-Edwards-Real-Kinney-Uvalde-Maverick-Zavala-Dimmit-
Including the cities of Del Rio, Rocksprings, Leakey, 
Bracketville, Uvalde, Eagle Pass, Crystal City, 
and Carrizo Springs
337 AM CDT Sat Sep 15 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, Dimmit, Edwards, Kinney, Maverick, Real, Uvalde, Val 
  Verde, and Zavala. 

* Through Sunday morning

* Scattered to numerous showers and thunderstorms will impact 
  the region. Widespread 1 to 3 inches of rainfall are expected 
  through Saturday night, with isolated pockets near 7 inches 
  possible. Due to sensitivity of nearly-saturated grounds over 
  the area, any additional heavy rains will result in quick run- 
  off and an increased risk for flash flooding. 

* Flooding of low water crossings and urban areas is possible. 
  If you encounter a flooded roadway, Turn Around, Don't Drown! 

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.

&&

$$

TXZ190-191-206>208-221>225-160000-
/O.CON.KEWX.FF.A.0005.000000T0000Z-180916T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Blanco-Hays-Comal-Guadalupe-Caldwell-Wilson-Karnes-Gonzales-
De Witt-Lavaca-
Including the cities of Blanco, San Marcos, New Braunfels, 
Seguin, Lockhart, Floresville, Karnes City, Gonzales, Cuero, 
and Halletsville
337 AM CDT Sat Sep 15 2018

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

The Flash Flood Watch continues for

* A portion of south central Texas, including the following 
  areas, Blanco, Caldwell, Comal, De Witt, Gonzales, Guadalupe, 
  Hays, Karnes, Lavaca, and Wilson. 

* Through this evening

* Scattered to numerous showers and thunderstorms will impact 
  the region. Widespread 1 to 3 inches of rainfall are expected 
  through Saturday evening, with isolated pockets near 7 inches 
  possible. Due to sensitivity of nearly-saturated grounds over 
  the area, any additional heavy rains will result in quick run- 
  off and an increased risk for flash flooding. 

* Flooding of low water crossings and urban areas is possible. 
  If you encounter a flooded roadway, Turn Around, Don't Drown! 

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.

&&

$$
208 
WGUS64 KEWX 160131
FFAEWX

Flood Watch
National Weather Service Austin/San Antonio TX
831 PM CDT Sat Sep 15 2018

...LOCALLY HEAVY RAINFALL LEADING TO FLASH FLOODING POSSIBLE
TODAY AND SUNDAY...

.Bands of showers and thunderstorms will produce periods of
tropical downpours through this weekend. When and where these
bands will develop is difficult to pinpoint, but the threat for
heavy rainfall from them will persist as long as an associated
area of low pressure lingers in southern Texas. Much of the watch
area is near-saturated from recent rainfall, and any additional
heavy rainfall could quickly lead to flash flooding.

TXZ183>189-202>205-217>220-228-161200-
/O.CON.KEWX.FF.A.0005.000000T0000Z-180916T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Val Verde-Edwards-Real-Kerr-Bandera-Gillespie-Kendall-Kinney-
Uvalde-Medina-Bexar-Maverick-Zavala-Frio-Atascosa-Dimmit-
Including the cities of Del Rio, Rocksprings, Leakey, Kerrville, 
Bandera, Fredericksburg, Boerne, Bracketville, Uvalde, Hondo, 
San Antonio, Eagle Pass, Crystal City, Pearsall, Pleasanton, 
and Carrizo Springs
831 PM CDT Sat Sep 15 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT SUNDAY...

The Flash Flood Watch continues for

* A portion of south central Texas, including the following 
  areas, Atascosa, Bandera, Bexar, Dimmit, Edwards, Frio, 
  Gillespie, Kendall, Kerr, Kinney, Maverick, Medina, Real, 
  Uvalde, Val Verde, and Zavala. 

* Until 7 AM CDT Sunday

* Scattered to numerous showers and thunderstorms will impact the
  region. Widespread 1 to 3 inches of rainfall are expected
  through Saturday night, with isolated pockets near 5 inches 
  possible. Due to sensitivity of nearly-saturated grounds over 
  the area, any additional heavy rains will result in quick run- 
  off and an increased risk for flash flooding. 

* Flooding of low water crossings and urban areas is possible. 
  If you encounter a flooded roadway, Turn Around, Don't Drown! 

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.

&&

$$
477 
WGUS64 KEWX 160827
FFAEWX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Austin/San Antonio TX
327 AM CDT Sun Sep 16 2018

...PERIODS OF HEAVY RAINFALL LEADING TO LOCALIZED FLASH FLOODING 
POSSIBLE TODAY...

.A low pressure system located near Eagle Pass early this morning
will result in bands of showers with embedded thunderstorms 
moving across portions of South Central Texas today. These bands 
will be capable of producing isolated 4 inch rainfall amounts 
through this evening as they wrap around the low pressure system. 
Some of these bands may move repeatedly across the same locations,
increasing the potential for flash flooding. Because of the 
uncertainty in where these bands will set up today and the 
region's sensitivity to additional rainfall, the Flash Flood Watch
has been extended through this evening. Should the threat for 
heavy rainfall shift west of the region, the Flash Flood Watch may
be cancelled early.

TXZ183>189-202>205-217>220-228-170000-
/O.EXT.KEWX.FF.A.0005.000000T0000Z-180917T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Val Verde-Edwards-Real-Kerr-Bandera-Gillespie-Kendall-Kinney-
Uvalde-Medina-Bexar-Maverick-Zavala-Frio-Atascosa-Dimmit-
Including the cities of Del Rio, Rocksprings, Leakey, Kerrville, 
Bandera, Fredericksburg, Boerne, Bracketville, Uvalde, Hondo, 
San Antonio, Eagle Pass, Crystal City, Pearsall, Pleasanton, 
and Carrizo Springs
327 AM CDT Sun Sep 16 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, Bexar, Dimmit, Edwards, Frio, 
  Gillespie, Kendall, Kerr, Kinney, Maverick, Medina, Real, 
  Uvalde, Val Verde, and Zavala. 

* Through this evening

* Scattered to numerous showers with embedded thunderstorms will
  impact the watch area today. Widespread 1 to 2 inches of
  rainfall are expected through today, with isolated pockets near
  4 inches possible. Due to sensitivity of nearly-saturated
  grounds in the watch area, any additional heavy rains will
  result in quick run-off and an increased risk for flash 
  flooding. 

* Flooding of low water crossings, underpasses, and urban areas
  are possible. If you encounter a flooded roadway, Turn Around, 
  Don't Drown! 

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.

&&

$$
646 
WGUS64 KEWX 161950
FFAEWX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Austin/San Antonio TX
250 PM CDT Sun Sep 16 2018

...PERIODS OF HEAVY RAINFALL LEADING TO LOCALIZED FLASH FLOODING
POSSIBLE TODAY...

.A low pressure system located just west of Del Rio this afternoon 
will continue to produce showers and embedded thunderstorms 
through this evening, while a line of thunderstorms moves from 
south to north across most of the area late this afternoon. 
Additional rainfall of 1/2 to 1 inch will be common, with a few 
spots receiving up to three additional inches of rain. The flash 
flood threat should be over by 7 pm CDT, although minor flooding 
may occur or continue into late evening.

TXZ206-207-221-222-170000-
/O.NEW.KEWX.FF.A.0006.180916T1950Z-180917T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Comal-Guadalupe-Wilson-Karnes-
Including the cities of New Braunfels, Seguin, Floresville, 
and Karnes City
250 PM CDT Sun Sep 16 2018

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

The National Weather Service in Austin/San Antonio has issued a

* Flash Flood Watch for a portion of south central Texas, 
  including the following areas, Comal, Guadalupe, Karnes, and 
  Wilson. 

* Until 7 PM CDT this evening

* Two to four inches of rain has fallen in the last 36 hours, and
  another 1/2 to 2 inches is possible through sunset.

* Minor flooding is likely, and more significant flooding may
  occur where rainfall is more intense.

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.

&&

$$

TXZ183>189-202>205-217>220-228-170000-
/O.CON.KEWX.FF.A.0005.000000T0000Z-180917T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Val Verde-Edwards-Real-Kerr-Bandera-Gillespie-Kendall-Kinney-
Uvalde-Medina-Bexar-Maverick-Zavala-Frio-Atascosa-Dimmit-
Including the cities of Del Rio, Rocksprings, Leakey, Kerrville, 
Bandera, Fredericksburg, Boerne, Bracketville, Uvalde, Hondo, 
San Antonio, Eagle Pass, Crystal City, Pearsall, Pleasanton, 
and Carrizo Springs
250 PM CDT Sun Sep 16 2018

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

The Flash Flood Watch continues for

* A portion of south central Texas, including the following 
  areas, Atascosa, Bandera, Bexar, Dimmit, Edwards, Frio, 
  Gillespie, Kendall, Kerr, Kinney, Maverick, Medina, Real, 
  Uvalde, Val Verde, and Zavala. 

* Until 7 PM CDT this evening

* Scattered to numerous showers with embedded thunderstorms will
  impact the watch area through early evening. Widespread 1 to 2
  inches of rainfall are expected, and a few spots could receive
  up to 3 inches of rain by sunset.

* Flooding of low water crossings, underpasses, and urban areas 
  are possible. If you encounter a flooded roadway, Turn Around, 
  Don't Drown! 

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.

&&

$$
531 
WGUS64 KEWX 170020
FFAEWX

Flood Watch
National Weather Service Austin/San Antonio TX
720 PM CDT Sun Sep 16 2018

TXZ183>189-202>205-217>220-228-170130-
/O.EXP.KEWX.FF.A.0005.000000T0000Z-180917T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Val Verde-Edwards-Real-Kerr-Bandera-Gillespie-Kendall-Kinney-
Uvalde-Medina-Bexar-Maverick-Zavala-Frio-Atascosa-Dimmit-
Including the cities of Del Rio, Rocksprings, Leakey, Kerrville, 
Bandera, Fredericksburg, Boerne, Bracketville, Uvalde, Hondo, 
San Antonio, Eagle Pass, Crystal City, Pearsall, Pleasanton, 
and Carrizo Springs
720 PM CDT Sun Sep 16 2018

...FLASH FLOOD WATCH HAS EXPIRED...

The Flash Flood Watch for a portion of south central Texas has
expired. Overall, the threat for flash flooding has lowered and
the watch will be allowed to expire.

$$

TXZ206-207-221-222-170130-
/O.EXP.KEWX.FF.A.0006.000000T0000Z-180917T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Comal-Guadalupe-Wilson-Karnes-
Including the cities of New Braunfels, Seguin, Floresville, 
and Karnes City
720 PM CDT Sun Sep 16 2018

...FLASH FLOOD WATCH HAS EXPIRED...

The Flash Flood Watch for a portion of south central Texas has
expired. Overall, the threat for flash flooding has lowered and
the watch will be allowed to expire.

$$

What forecasters said that day

The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this flash flood watch went out at Sep 13, 1:01 PM CDT, 1 hour 42 minutes earlier.

Area forecast discussion, Sep 13, 1:01 PM CDT, 1 hour 42 minutes before
Area Forecast Discussion
National Weather Service Austin/San Antonio TX
101 PM CDT Thu Sep 13 2018

.AVIATION...
Ceilings are continuing to break early this afternoon and VFR
conditions should break out at all terminals within the next hour or
so. While there will be decent coverage of cloudcover through the
afternoon skies should be VFR through the evening. Isolated showers
have already developed east of I-35 and these should move into the
I-35 corridor later this afternoon potentially impacting the
terminals (AUS/SAT/SSF). Because of this VCSH and -SHRA have been
added to the I-35 sites through the afternoon and evening. Cigs will
return along I-35 between 04z and 06z and continue to drop to IFR
between 09z and 11z. MVFR cigs will develop at DRT around 09z and
last through 16z on Friday. Improvement in ceilings tomorrow along
I-35 will be slow, but MVFR should return by mid morning with another
round of scattered showers expected through the day.

&&

.PREV DISCUSSION... /ISSUED 619 AM CDT Thu Sep 13 2018/

AVIATION...
MVFR/IFR ceilings are in place across all TAF sites this morning and
should prevail through the late morning hours before VFR returns this
afternoon. There are some very isolated showers to the southeast of
KSAT but these are not worth mentioning. More robust showers are
expected this afternoon and will mention VCSH with TEMPO groups for
SHRA. Will keep the overnight period rain free as most of the high
res guidance shows things rain free with the loss of heating.
Another round of MVFR and perhaps IFR conditions can be expected
tonight.

PREV DISCUSSION... /ISSUED 425 AM CDT Thu Sep 13 2018/

NEAR TERM (Today into Tonight)...
Expect today will be similar to yesterday. The deepest moisture with
PWs around 2 inches remains along and east of I-35 keeping greatest
coverage of showers and thunderstorms over those areas. Locally heavy
rains and minor flooding are possible.

SHORT TERM (Friday through Sunday)...
The tropical disturbance that has been drifting west across the Gulf
of Mexico moves across central and southern Texas on Friday into
Saturday, then into Mexico by Sunday. Models have been trending
toward the GFS in keeping it more of an open wave. Currently, the
National Hurricane Center indicates a 60% chance of tropical cyclone
development. Regardless of development, the main impact will be
increased heavy rains causing a threat of flash flooding and renewed
river flooding.

Moisture levels increase as PWs rise to 2.0 to 2.5 inches. Showers
and thunderstorms become more numerous to widespread with a
corresponding greater coverage of heavy rains most areas Friday into
Saturday, shifting to the Rio Grande and Edwards Plateau Saturday
night into Sunday. Should the system become a tropical cyclone, then
the heaviest rains will become more focused in bands and near the
center. There remains uncertainty on where this center would move
across in those few models that still show a closed center. Model
consensus shows the highest rainfall amounts from San Antonio metro
area to the south and west, however a few models show a few spots
elsewhere.

Current indications show rainfall totals of 2 to 4 inches with
isolated totals of up to 8 inches. Due to the saturated soils from
the heavy rains thus far in September, the threat for flash flooding
and renewed river flooding increases as runoff will be more rapid.
Expect a Flash Flood Watch will be issued for Friday into Saturday
for at least part of our area as models come more into a consensus.

Key Messages:

1) Regardless of tropical cyclone development, the main impact from
this system will be periods of heavy rain and potential flooding
across South Central Texas Friday through Sunday.
2) Flash Flooding of low water crossings and urban areas possible.
Turn Around, Don't Drown!
3) Heavy rainfall and flooding will be of greatest concern from the
San Antonio metro area to the south and west.
4) Flooding possible on Rio Grande, Nueces, Frio, and San Antonio
River systems.

LONG TERM (Monday through Wednesday)...
In the wake of the tropical disturbance, the Subtropical Ridge builds
toward our area. Showers and thunderstorms become more isolated and
driven by heating as the airmass dries with increasing subsidence.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              88  73  85  73  85 /  60  40  70  50  60
Austin Bergstrom Intl Airport  88  73  85  73  85 /  70  40  70  50  60
New Braunfels Muni Airport     88  73  85  73  85 /  70  40  70  60  70
Burnet Muni Airport            86  71  83  71  82 /  50  30  70  50  60
Del Rio Intl Airport           89  73  88  73  83 /  30  20  50  60  80
Georgetown Muni Airport        88  72  85  72  84 /  60  30  70  50  60
Hondo Muni Airport             88  73  86  72  83 /  60  40  70  60  80
San Marcos Muni Airport        88  73  85  73  85 /  70  40  70  50  70
La Grange - Fayette Regional   89  74  86  74  87 /  80  50  80  50  70
San Antonio Intl Airport       88  73  85  73  84 /  60  40  70  60  80
Stinson Muni Airport           89  74  86  74  85 /  60  40  70  60  80

&&

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

Mesoscale/Aviation...Treadway
Synoptic/Grids...Runyen
Public Service/Data Collection...33
Hazardous weather outlook, Sep 13, 3:24 AM CDT, 11 hours 19 minutes before
Hazardous Weather Outlook
National Weather Service Austin/San Antonio TX
324 AM CDT Thu Sep 13 2018

TXZ171>173-183>194-202>209-217>225-228-141200-
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-
324 AM CDT Thu Sep 13 2018

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

.DAY ONE...Today And Tonight.

Showers and thunderstorms are expected today into tonight. Locally
heavy rains are possible and may cause mainly minor flooding.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Showers and thunderstorms are expected Friday through Monday.
Heavy rains become more widespread Friday into Saturday resulting
in a greater threat for flash flooding and possibly renewed river
flooding. Rainfall amounts of 2 to 4 inches will be possible with
isolated totals up to 8 inches. Due to recent rains and the
saturated ground even a quick 1 inch of rainfall could lead to
flash flooding issues in some areas. The area of greatest concern
for the heavy rainfall and potential flash flooding will be across
the Rio Grande, western Hill Country and San Antonio metro areas.
Chances and coverage of rainfall will begin to decrease during
the first part of next week.

.SPOTTER INFORMATION STATEMENT...

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

Nearby

Flash Flood Watches in Texas, 2018Every flash flood watch in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.