320 
WGUS53 KFSD 141038
FFWFSD
IAC193-141345-
/O.NEW.KFSD.FF.W.0009.260814T1038Z-260814T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Sioux Falls SD
538 AM CDT Fri Aug 14 2026

The National Weather Service in Sioux Falls has issued a

* Flash Flood Warning for...
  Southwestern Woodbury County in west central Iowa...

* Until 845 AM CDT.

* At 538 AM CDT, Doppler radar and automated rain gauges indicated
  thunderstorms producing heavy rain across the warned area. Between
  1.5 and 2.5 inches of rain have fallen. The expected rainfall rate
  is 1 to 2 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 and automated gauges.

  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...
  Sloan and Hornick.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4228 9636 4231 9621 4234 9597 4225 9594
      4221 9612 4221 9634 4222 9635 4222 9633
      4223 9632 4224 9633 4225 9633 4226 9633
      4227 9634

FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR

$$

SG

162 
WGUS73 KFSD 141148
FFSFSD

Flash Flood Statement
National Weather Service Sioux Falls SD
648 AM CDT Fri Aug 14 2026

IAC193-141345-
/O.CON.KFSD.FF.W.0009.000000T0000Z-260814T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Woodbury IA-
648 AM CDT Fri Aug 14 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 AM CDT THIS
MORNING FOR SOUTHWESTERN WOODBURY COUNTY...

At 648 AM CDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between 2
and 3 inches of rain have fallen. The expected rainfall rate is 0.5
inches in 1 hour. Additional rainfall amounts up to 0.5 inches are
possible in the warned area. Flash flooding is ongoing or expected to
begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar and automated gauges.

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...
  Sloan and Hornick.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4228 9636 4231 9621 4234 9597 4225 9594
      4221 9612 4221 9634 4222 9635 4222 9633
      4223 9632 4224 9633 4225 9633 4226 9633
      4227 9634

FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...0.5 INCHES IN 1 HOUR

$$

SG

397 
WGUS73 KFSD 141318
FFSFSD

Flash Flood Statement
National Weather Service Sioux Falls SD
818 AM CDT Fri Aug 14 2026

IAC193-141328-
/O.CAN.KFSD.FF.W.0009.000000T0000Z-260814T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Woodbury IA-
818 AM CDT Fri Aug 14 2026

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHWESTERN WOODBURY
COUNTY...

Flooding is no longer expected to pose a threat. Please continue to
heed remaining road closures.

&&

LAT...LON 4231 9621 4234 9597 4225 9594 4221 9611
      4221 9634 4222 9635 4222 9633 4223 9632
      4224 9633 4225 9633 4226 9633 4227 9634
      4228 9636

$$

Weisser