351 
WGUS55 KBOI 160102
FFWBOI
IDC015-160300-
/O.NEW.KBOI.FF.W.0010.260816T0102Z-260816T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Boise ID
702 PM MDT Sat Aug 15 2026

The National Weather Service in Boise has issued a

* Flash Flood Warning for...
  The Wapiti Fire burn scar in...
  Northeastern Boise County in southwestern Idaho...

* Until 900 PM MDT.

* At 702 PM MDT, Doppler radar indicated thunderstorms producing
  heavy rain over the Wapiti Fire Burn Scar. Up to 0.2 inches of rain
  have fallen. The expected rainfall rate is 0.5 to 1 inch 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. Excessive rainfall over the burn scar will result in
  debris flow. The debris flow can consist of rock, mud, vegetation
  and other loose materials.

  HAZARD...Flash flooding caused by thunderstorms in and around the
           Wapiti Fire Burn Scar.

  SOURCE...Radar indicated.

  IMPACT...Flooding of areas in and around the Wapiti Fire Burn Scar.

* Some locations that will experience flash flooding include...
  Grandjean.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a life threatening situation. Heavy rainfall will cause
extensive and severe flash flooding of creeks...streams...and ditches
in the Wapiti Fire Burn Scar. Severe debris flows can also be
anticipated across roads. Roads and driveways may be washed away in
places. If you encounter flood waters...climb to safety.

Move away from recently burned areas. Life-threatening flooding of
creeks, roads and normally dry washes is likely. The heavy rains will
likely trigger rockslides, mudslides and debris flows in steep
terrain, especially in and around these areas.

&&

LAT...LON 4411 11504 4407 11509 4410 11518 4410 11523
      4409 11522 4409 11523 4418 11532 4422 11534
      4430 11532 4431 11525 4429 11524 4431 11524
      4431 11522 4428 11520 4430 11518 4425 11516
      4424 11517 4421 11516 4420 11517 4419 11513

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...0.5-1 INCH IN 1 HOUR

$$

LC

014 
WGUS75 KBOI 160253
FFSBOI

Flash Flood Statement
National Weather Service Boise ID
853 PM MDT Sat Aug 15 2026

IDC015-160303-
/O.EXP.KBOI.FF.W.0010.000000T0000Z-260816T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Boise ID-
853 PM MDT Sat Aug 15 2026

...FLASH FLOOD WARNING FOR THE WAPITI FIRE BURN SCAR WILL EXPIRE AT 9
PM MDT THIS EVENING FOR NORTHEASTERN BOISE COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.


&&

LAT...LON 4410 11518 4410 11523 4409 11522 4409 11523
      4418 11532 4422 11534 4430 11532 4431 11525
      4429 11524 4431 11524 4431 11522 4428 11520
      4430 11518 4425 11516 4424 11517 4421 11516
      4420 11517 4419 11513 4411 11504 4407 11509

$$

LC