Expires:202308190400;Remove:202308190400;872029
WGUS55 KBOI 190105
FFWBOI

IDC003-045-085-190400-
/O.NEW.KBOI.FF.W.0012.230819T0105Z-230819T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Boise ID
705 PM MDT Fri Aug 18 2023

The National Weather Service in Boise has issued a

* Flash Flood Warning for...
  The Four Corners Fire burn scar in...
  Southeastern Adams County in southwestern Idaho...
  Northeastern Gem County in southwestern Idaho...
  West Central Valley County in southwestern Idaho...

* Until 1000 PM MDT.

* At 705 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain over the Four Corners Fire Burn Scar. Between 0.2 and 
  0.4 inches of rain have fallen. The expected rainfall rate is 1 to 
  2 inches in 20 minutes. Additional rainfall amounts of 0.5 to 0.8 
  inches 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 
moving out of the burn area. The debris flow can consist of rock, 
mud, vegetation and other loose materials.

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

  SOURCE...Radar.

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

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 Four Corners 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 4450 11626 4457 11615 4449 11605 4449 11604
      4443 11614

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 20 MINUTES

$$

BOI