101 
WGUS84 KEWX 212157
FLSEWX

Flood Advisory
National Weather Service Austin/San Antonio TX
457 PM CDT Thu May 21 2026

TXC031-171-299-220100-
/O.NEW.KEWX.FA.Y.0060.260521T2157Z-260522T0100Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Blanco TX-Gillespie TX-Llano TX-
457 PM CDT Thu May 21 2026

...FLOOD ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING...

* WHAT...Urban and small stream flooding caused by excessive 
  rainfall is expected.

* WHERE...A portion of south central Texas, including the following 
  counties, Blanco, Gillespie and Llano.

* WHEN...Until 800 PM CDT.

* IMPACTS...Minor flooding in low-lying and poor drainage areas. 
  Water over roadways. Some low-water crossings may become 
  impassable.

* ADDITIONAL DETAILS...
  - At 457 PM CDT, Doppler radar and automated rain gauges
    indicated heavy rain due to thunderstorms. This will cause
    urban and small stream flooding. Up to 1 inch of rain has
    fallen.
  - Additional rainfall amounts of 1 to 2 inches are expected
    over the area. This additional rain will result in minor
    flooding.
  - Some locations that will experience flooding include...
    Fredericksburg, Kingsland, Llano, Round Mountain, Buchanan
    Dam, Gainesville, Granite Shoals, Horseshoe Bay, Buchanan
    Lake Village, Stonewall, Highland Haven, Castell, Enchanted
    Rock State Natural Area, Prairie Mountain, Crabapple, Oxford,
    Eckert, Willow City, Blowout and Cherry Spring.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, dont drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Flooding is occurring or is imminent. It is important to know where 
you are relative to streams, rivers, or creeks which can become 
killers in heavy rains. Campers and hikers should avoid streams or 
creeks.

&&

LAT...LON 3050 9930 3050 9896 3092 9896 3092 9845
      3088 9846 3086 9842 3084 9842 3084 9838
      3079 9843 3076 9843 3074 9837 3070 9841
      3068 9840 3067 9844 3060 9840 3057 9841
      3056 9835 3049 9835 3021 9858 3021 9930


$$

MM