Flash Flood Warning

Flash Flood Warning
AZC009-021-300545-
/O.NEW.KTWC.FF.W.0165.260830T0049Z-260830T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tucson AZ
549 PM MST Sat Aug 29 2026

The National Weather Service in Tucson has issued a

* Flash Flood Warning for...
  West Central Graham County in southeastern Arizona...
  East Central Pinal County in southeastern Arizona...

* Until 1045 PM MST.

* At 549 PM MST, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Between 1 and 3 inches of rain
  have fallen. Additional rainfall amounts up to 1 inch are possible
  in the warned area. 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,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Aravaipa Canyon Wilderness.

This includes the following streams and drainages...
  Garden Creek, Kelly Gulch, Telegraph Wash, Deer Creek, Goodwin
  Wash, Turkey Creek and Aravaipa Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Remain alert for flooding even in locations not receiving rain.
Washes, streams, and rivers can become raging killer currents in a
matter of minutes, even from distant rainfall.

Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.

&&

LAT...LON 3315 11055 3317 11054 3312 11051 3308 11044
      3301 11026 3282 11048 3283 11064 3282 11064
      3285 11071 3287 11064 3291 11059 3298 11063
      3304 11061 3303 11064 3307 11060 3304 11051
      3307 11049 3309 11051 3313 11059 3315 11058

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

$$

JRM

Extreme Heat Warning

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
749 PM MST Sat Aug 29 2026

AZZ503-506>509-300400-
/O.EXP.KTWC.XH.W.0006.000000T0000Z-260830T0300Z/
Upper Santa Cruz River Valley/Altar Valley-Southeast Pinal County-
Upper San Pedro River Valley-Eastern Cochise County below
5000 feet-Upper Gila River Valley-
Including the cities of Nogales, Safford, Mammoth, Willcox, Oracle,
Sierra Vista, Clifton, Benson, and Douglas
749 PM MST Sat Aug 29 2026

...EXTREME HEAT WARNING WILL EXPIRE AT 8 PM MST THIS EVENING...

$$

GLZ

Flood Advisory

Flood Advisory
National Weather Service Tucson AZ
551 PM MST Sat Aug 29 2026

AZC009-300315-
/O.CON.KTWC.FA.Y.0100.000000T0000Z-260830T0315Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Graham AZ-
551 PM MST Sat Aug 29 2026

...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 815 PM MST THIS EVENING...

* WHAT...Flooding caused by excessive rainfall continues.

* WHERE...West Central Graham County in southeastern Arizona...

* WHEN...Until 815 PM MST.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
  Rises in small streams and normally dry washes.

* ADDITIONAL DETAILS...
  - At 551 PM MST, Doppler radar indicated heavy rain due to
    thunderstorms. Minor flooding is ongoing or expected to begin
    shortly in the advisory area. Up to 1 inch of rain has fallen.
  - Additional rainfall amounts up to 1 inch are expected over the
    area. This additional rain will result in minor flooding.
  - Some locations that will experience flooding include...
    Mainly rural areas of West Central Graham County.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.

&&

LAT...LON 3303 11032 3305 11038 3306 11043 3309 11039
      3321 11036 3323 11035 3322 11026 3302 11025
      3301 11026


$$

JRM

Flood Watch

Flood Watch
National Weather Service Flagstaff AZ
1150 AM MST Sat Aug 29 2026

AZZ004>007-009>017-039-040-300730-
/O.NEW.KFGZ.FA.A.0007.260830T2100Z-260901T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kaibab Plateau-Marble and Glen Canyons-Grand Canyon Country-
Coconino Plateau-Northeast Plateaus and Mesas Hwy 264 Northward-
Chinle Valley-Chuska Mountains and Defiance Plateau-Little
Colorado River Valley in Coconino County-Little Colorado River
Valley in Navajo County-Little Colorado River Valley in Apache
County-Western Mogollon Rim-Eastern Mogollon Rim-White Mountains-
Black Mesa Area-Northeast Plateaus and Mesas South of Hwy 264-
Including the cities of Snowflake, Keams Canyon, Heber, Supai, Grand
Canyon North Rim, Forest Lakes, Dilkon, Fredonia, Jacob Lake,
Winslow, Wupatki National Monument, Fort Defiance, Greer, Chambers,
Navajo National Monument, Steamboat Canyon, Wide Ruins, Ganado,
Shonto, Flagstaff, Kykotsmovi, Happy Jack,
Pinetop-Lakeside, Kaibito, Kayenta, Window Rock, Grand Canyon
Village, Tusayan, Jadito, Show Low, St. Johns, Williams, Tuba
City, Valle, Page, Holbrook, Klagetoh, Springerville, Lees Ferry,
Munds Park, Sanders, Chinle, and Canyon De Chelly
1150 AM MST Sat Aug 29 2026 /1250 PM MDT Sat Aug 29 2026/

...FLOOD WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY
EVENING...

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...Apache, Coconino, and Navajo counties.

* WHEN...From Sunday afternoon through Monday evening.

* IMPACTS...Flash flooding will be possible in creeks, normally dry
  washes, swimming holes, and over recently burned areas. Raging
  killer currents will be possible in side canyons and narrow slot
  canyons. Low-water crossings may be flooded.

* ADDITIONAL DETAILS...
  - Numerous to widespread showers and thunderstorms are expected
    across much of central and northern Arizona on Sunday and Monday,
    including the overnight hours Sunday night. These storms will
    have the potential to produce heavy rainfall, which could lead to
    flash flooding.
  - Additional information is available at weather.gov/flagstaff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Have a way to receive Flash Flood Warnings and be prepared to take
action should warnings be issued.

Consider changing your plans if you were going to hike, boat, or
paddleboard to a slot canyon or normally dry wash. If you do still
decide to recreate, check in at a nearby visitor center or ranger
station.

&&

$$

Humphreys