Flash Flood Warning 74, NWS Austin/San Antonio, TX

640 
WGUS54 KEWX 071501
FFWEWX
TXC299-071745-
/O.EXT.KEWX.FF.W.0074.000000T0000Z-250707T1745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
1001 AM CDT Mon Jul 7 2025

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

* Flash Flood Warning for...
  Llano County in south central Texas...

* Until 1245 PM CDT.

* At 1001 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 4 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 3 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Radar.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Llano, Gainesville, Buchanan Lake Village, Castell, Oxford, Valley 
  Spring, Lone Grove, Baby Head, Stolz, Prairie Mountain, Enchanted 
  Rock State Natural Area, Bluffton, Field Creek and Tow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 3050 9868 3050 9896 3092 9896 3092 9845
      3088 9846 3086 9842 3084 9842 3084 9840
      3084 9838 3082 9838 3082 9840 3079 9841
      3079 9843 3078 9842 3075 9843 3069 9851

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

27

383 
WGUS74 KEWX 071741
FFSEWX

Flash Flood Statement
National Weather Service Austin/San Antonio TX
1241 PM CDT Mon Jul 7 2025

TXC299-071751-
/O.EXP.KEWX.FF.W.0074.000000T0000Z-250707T1745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Llano TX-
1241 PM CDT Mon Jul 7 2025

...FLASH FLOOD WARNING WILL EXPIRE AT 1245 PM CDT THIS AFTERNOON FOR 
LLANO COUNTY...

The heavy rain has ended. Please continue to heed remaining road 
closures.

A Flood Watch remains in effect until 700 PM CDT Monday for a 
portion of south central Texas.

&&

LAT...LON 3050 9868 3050 9896 3092 9896 3092 9845
      3088 9846 3086 9842 3084 9842 3084 9840
      3084 9838 3082 9838 3082 9840 3079 9841
      3079 9843 3078 9842 3075 9843 3069 9851

$$

27

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
602 AM CDT Mon Jul 7 2025

...New AVIATION...

.SHORT TERM...
(Today through Tuesday)
Issued at 1255 AM CDT Mon Jul 7 2025

A mid level MCV and moist tropical airmass with PWs of 1.7 to 2.4
inches remain in place over our area and will linger today. Forcing
by this feature has already generated a few showers over Williamson
County. An overwhelming suite of models/ensembles forecast showers
and thunderstorms to increase in coverage overnight into Monday
morning. The favored areas continue to be the I-35 corridor into the
Hill Country with a slight spread toward the Edwards Plateau later
in the morning. Forecast storm motion vectors have sped up a little
compared to recent days. This may somewhat lessen rainfall amounts.
However, locally heavy rains of 2 to 4 inches are expected with up
to 10 inches still possible. These rainfall amounts may cause flash
and possibly renewed river flooding in the watch area. It must be
noted that models vary considerably on where the heaviest rains will
occur within the watch area. The showers and thunderstorms will
dissipate with loss of heating Monday evening.

An upper level trough that has been over the central Gulf of America
will move toward the Texas coast on Tuesday. This will likely take
the MCV away from our area. As a result, it should not impact our
area after today. This scenario is seen in most all of the
models/ensembles. As the trough approaches, chances of showers and
thunderstorms develop from the Coastal Plains to the I-35 corridor
Tuesday afternoon. Moisture levels/PWs decrease some, however still
cannot rule out a few heavy downpours.

The clouds and rain areas keep daytime temperatures slightly below
July averages.

&&

.LONG TERM...
(Tuesday night through Sunday)
Issued at 1255 AM CDT Mon Jul 7 2025

The mid level trough moves farther inland and develops into a shear
axis between Subtropical Ridges centered over the southwestern
states/northwestern Mexico and the eastern Gulf of America into the
Atlantic. Moisture levels near seasonal levels maintain chances of
showers and thunderstorms across eastern areas Wednesday afternoon.
Although rain is not in the forecast due to a drier airmass, cannot
rule out isolated showers and perhaps a thunderstorm or two each
afternoon with heating on Thursday and Friday. Chances of showers
and thunderstorms return next weekend as moisture levels increase
due to the shear axis pushing to our west. Near July average
temperatures are expected.

&&

.AVIATION...
(12Z TAFS)
Issued at 602 AM CDT Mon Jul 7 2025

MVFR ceilings prevail early this morning with pockets of IFR near San
Antonio and over portions of the Hill Country. Ceilings are forecast
to become VFR 15Z-18Z. Otherwise, scattered SHRA activity this
morning across the northern Hill Country and I-35 corridor.
Increasing in coverage after 16Z through the afternoon, with TSRA
embedded. Activity should once again diminish after sunset.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              92  74  94  74 /  30  10  20  10
Austin Bergstrom Intl Airport  92  74  92  74 /  30  10  20  10
New Braunfels Muni Airport     92  73  92  72 /  30  10  20  10
Burnet Muni Airport            88  72  90  72 /  50  10  20  10
Del Rio Intl Airport           94  76  95  76 /  20  10   0   0
Georgetown Muni Airport        90  74  91  73 /  40  10  20  10
Hondo Muni Airport             91  73  90  72 /  30  10  10   0
San Marcos Muni Airport        92  74  93  72 /  30  10  20  10
La Grange - Fayette Regional   92  75  92  74 /  40  10  40  10
San Antonio Intl Airport       92  75  91  75 /  30  10  20  10
Stinson Muni Airport           94  75  93  74 /  20  10  20   0

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
Flood Watch through this evening for Bandera-Bastrop-Bexar-Blanco-
Burnet-Caldwell-Comal-Edwards-Gillespie-Guadalupe-Hays-Kendall-Kerr-
Lee-Llano-Medina-Real-Travis-Uvalde-Williamson.

&&

Short-Term...04
Long-Term...04
Aviation...76