Flood Watch

Flood Watch
National Weather Service Tucson AZ
117 PM MST Sat Sep 26 2026

AZZ501>515-270430-
/O.NEW.KTWC.FA.A.0013.260928T1800Z-260930T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Western Pima County-Tohono O`odham Nation-Upper Santa Cruz River
Valley/Altar Valley-Tucson Metro Area-South Central Pinal County-
Southeast Pinal County-Upper San Pedro River Valley-Eastern
Cochise County below 5000 feet-Upper Gila River Valley-White
Mountains of Graham and Greenlee Counties-Galiuro and Pinaleno
Mountains-Chiricahua Mountains-Dragoon and Mule and Huachuca and
Santa Rita Mountains-Catalina and Rincon Mountains-Baboquivari
Mountains-
Including the cities of Mount Lemmon, Vail, Mount Graham, Green
Valley, Organ Pipe Cactus N.M., Canelo Hills, Summerhaven,
Willcox, Chiricahua N.M., Safford, Benson, Sierra Vista, Tucson,
Madera Canyon, Clifton, Nogales, Sells, Oracle, Douglas, Kitt Peak,
Bisbee, Picacho Peak State Park, Hannagan Meadow, Mammoth, Marana,
and Ajo
117 PM MST Sat Sep 26 2026

...FLOOD WATCH IN EFFECT FROM LATE MONDAY MORNING THROUGH TUESDAY
EVENING...

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

* WHERE...For all of southeast Arizona, including the following
  areas, Baboquivari Mountains, Catalina and Rincon Mountains,
  Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita
  Mountains, Eastern Cochise County below 5000 feet, Galiuro and
  Pinaleno Mountains, South Central Pinal County, Southeast Pinal
  County, Tohono O`odham Nation, Tucson Metro Area, Upper Gila River
  Valley, Upper San Pedro River Valley, Upper Santa Cruz River
  Valley/Altar Valley, Western Pima County and White Mountains of
  Graham and Greenlee Counties.

* WHEN...From late Monday morning through Tuesday evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
  - Deep tropical moisture will combine with an approaching upper low
    and trough, resulting in areas of heavy rainfall. Rainfall totals
    of 1 to 2 inches are possible across most of southeast Arizona,
    with locally heavier amounts under the stronger thunderstorms.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

GLZ

Flood Watch
National Weather Service Flagstaff AZ
1201 PM MST Sat Sep 26 2026

AZZ004>018-037>040-290645-
/O.NEW.KFGZ.FA.A.0009.260928T0600Z-260930T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kaibab Plateau-Marble and Glen Canyons-Grand Canyon Country-
Coconino Plateau-Yavapai County Mountains-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-Northern Gila County-Yavapai County
Valleys and Basins-Oak Creek and Sycamore Canyons-Black Mesa Area-
Northeast Plateaus and Mesas South of Hwy 264-
Including the cities of Valle, Young, Klagetoh, Dilkon, Tuba City,
Springerville, Lees Ferry, Tusayan, Page, Window Rock, Cottonwood,
Steamboat Canyon, Happy Jack, Show Low,
Pinetop-Lakeside, Ganado, Grand Canyon North Rim, Kayenta,
Holbrook, Heber, Strawberry, Bagdad, Chinle, Chambers, Fort Defiance,
Navajo National Monument, Supai, Ash Fork, Kaibito, Winslow, Forest
Lakes, Grand Canyon Village, Camp Verde, Sanders, Jadito, Kykotsmovi,
Keams Canyon, Flagstaff, Wupatki National Monument, Snowflake, Greer,
Payson, Village of Oak Creek, Williams, Cordes Junction, Jacob Lake,
Shonto, Crown King, Wide
Ruins, Seligman, Prescott, Munds Park, Fredonia, Sedona, St.
Johns, and Canyon De Chelly
1201 PM MST Sat Sep 26 2026 /101 PM MDT Sat Sep 26 2026/

...FLOOD WATCH IN EFFECT FROM SUNDAY EVENING THROUGH TUESDAY
EVENING...

* WHAT...Flooding caused by excessive and long duration rainfall.

* WHERE...All of northern and central Arizona.

* WHEN...From Sunday evening through Tuesday evening.

* IMPACTS...Flooding will be possible over burn areas, low-water
  crossings, creeks, streams, washes and swimming holes. Larger
  creeks and rivers may exceed bankfull. Flooding of paved roads and
  highway underpasses will be possible. Unpaved roads could become
  muddy and impassable.

* ADDITIONAL DETAILS...
  - Low pressure will interact with tropical moisture from the
    eastern Pacific. This could potentially produce numerous showers
    and embedded thunderstorms, with heavy rain that will fall over
    saturated soils and burn scars. This could lead to localized
    flash flooding and rises on local rivers, such as the Little
    Colorado River.
  - Additional information is available at weather.gov/flagstaff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

$$

Bernhart