148
WGUS53 KFSD 180836
FFWFSD
IAC119-143-167-181145-
/O.NEW.KFSD.FF.W.0021.250818T0836Z-250818T1145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Sioux Falls SD
336 AM CDT Mon Aug 18 2025

The National Weather Service in Sioux Falls has issued a

* Flash Flood Warning for...
  Eastern Lyon County in northwestern Iowa...
  West Central Osceola County in northwestern Iowa...
  Northeastern Sioux County in northwestern Iowa...

* Until 645 AM CDT.

* At 336 AM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Between 2 and 4 inches of rain
  have fallen. The expected rainfall rate is 3 to 5 inches in 1
  hour. Additional rainfall amounts of 0.5 to 1 inch are possible in
  the warned area. Flash flooding is ongoing or expected to begin
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  George, Little Rock and Matlock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 4346 9604 4343 9576 4326 9591 4322 9594
      4334 9617

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...3-5 INCHES IN 1 HOUR

$$

JM