Flash Flood Watch
Issued by NWS Tucson, AZ

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074
WGUS65 KTWC 162351
FFATWC

Flood Watch
National Weather Service Tucson AZ
451 PM MST Wed Sep 16 2026

AZZ501>515-170600-
/O.CON.KTWC.FA.A.0012.000000T0000Z-260917T0600Z/
/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 Graham, Organ Pipe Cactus N.M.,
Sierra Vista, Ajo, Marana, Picacho Peak State Park, Mammoth, Vail,
Madera Canyon, Clifton, Hannagan Meadow, Mount Lemmon, Oracle,
Tucson, Safford, Sells, Summerhaven, Bisbee, Benson, Kitt
Peak, Willcox, Green Valley, Douglas, Chiricahua N.M., Nogales,
and Canelo Hills
451 PM MST Wed Sep 16 2026

...FLOOD WATCH REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING...

* WHAT...Flooding caused by excessive rainfall continues to be
  possible.

* WHERE...A portion 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...Until 11 PM MST this evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Creeks and streams may rise out of their banks. Flooding may occur
  in poor drainage and urban areas. Low-water crossings may be
  flooded.

* ADDITIONAL DETAILS...
  - Well above normal moisture levels for September are expected to
    result in scattered to numerous showers and thunderstorms capable
    of producing heavy rainfall into this evening. Rain totals of 1
    to 2 inches are expected with the stronger storms with isolated
    amounts over 2 inches possible. Areas that received substantial
    rainfall over the previous two to four days will be more
    susceptible to flash flooding. This rainfall will result in
    faster response in washes, creeks, and storm drainages.
  - http://www.weather.gov/safety/flood

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.

&&

$$