557
WGUS55 KFGZ 050014
FFWFGZ
AZC005-050315-
/O.NEW.KFGZ.FF.W.0044.250905T0014Z-250905T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Flagstaff AZ
514 PM MST Thu Sep 4 2025

The National Weather Service in Flagstaff has issued a

* Flash Flood Warning for...
  Coconino County in north central Arizona...this includes the
  Colorado River between river miles 49 and 54.

* Until 815 PM MST /915 PM MDT/.

* At 514 PM MST /614 PM MDT/, Doppler radar indicated thunderstorms
  producing heavy rain over and just north of Nankoweap Creek. This
  is the second round of storms in this area today. Flash flooding
  is ongoing or expected to begin shortly.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Radar indicated.

  IMPACT...Life threatening flash flooding of creeks and streams
           and normally dry washes.

* Some locations that will experience flash flooding include...
  Grand Canyon National Park and Saddle Mountain Wilderness.

This includes the Colorado River between river miles 49 and 54.

This includes the following recreation areas and campgrounds...
Dinosaur Camp Site, Little Nankoweap Camp Site, Upper Nankoweap Camp
Site, Main Nankoweap Camp Site and Lower Nankoweap Camp Site.

This includes the following creeks, washes and rivers...
  Nankoweap Creek, Saddle Canyon, Colorado River, Nankoweap Canyon,
  Tatahoysa Wash and Little Nankoweap Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Flooding of washes and creeks will occur, some dirt roads will
become muddy and impassable. Paved roads and underpasses could
become flooded as well.

&&

LAT...LON 3636 11188 3635 11184 3632 11183 3629 11185
      3628 11188 3628 11190 3629 11193 3632 11194
      3635 11194 3636 11191

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

NWS Flagstaff