Grand Canyon, Arizona

Regional Weather Alerts


     

Alert: Flood Advisory
Area(s): Santa Cruz, AZ
Effective: 2026-09-24 @ 1:05 am -> 2026-09-24 @ 3:45 am
Onset: 2026-09-24 @ 1:05 am -> 2026-09-24 @ 3:45 am
Severity: Minor
Certainty: Likely
Urgency: Expected
Issued By: NWS Tucson AZ on 2026-09-24 @ 1:05 am
Headline: Flood Advisory issued September 23 at 6:05PM MST until September 23 at 8:45PM MST by NWS Tucson AZ
Description: * WHAT...Flooding caused by excessive rainfall continues.

* WHERE...South Central Santa Cruz County in southeastern Arizona...

* WHEN...Until 845 PM MST.

* IMPACTS...Rises in small streams and normally dry washes. Dangerous
flows over low-water crossings. Some low-water crossings may become
impassable.

* ADDITIONAL DETAILS...
- At 605 PM MST, Doppler radar indicated heavy rain due to
thunderstorms. Minor flooding is ongoing or expected to begin
shortly in the advisory area. Between 1 and 2 inches of rain have
fallen.
- Additional rainfall amounts up to 0.5 inches are expected over
the area. This additional rain will result in minor flooding.
- Some locations that will experience flooding include...
Rio Rico, Nogales International Airport, Patagonia Lake State
Park and Kino Springs.
- This includes the following highways...
Interstate 19 between mile markers 9 and 10. Route 82 between
mile markers 4 and 14.

This includes the following Flash Flood Prone Locations...
Pendleton Dr at Sonoita Creek.
- http://www.weather.gov/safety/flood

Alert: Flash Flood Warning
Area(s): Yavapai, AZ
Effective: 2026-09-24 @ 12:15 am -> 2026-09-24 @ 2:45 am
Onset: 2026-09-24 @ 12:15 am -> 2026-09-24 @ 2:45 am
Severity: Severe
Certainty: Likely
Urgency: Immediate
Issued By: NWS Flagstaff AZ on 2026-09-24 @ 12:15 am
Headline: Flash Flood Warning issued September 23 at 5:15PM MST until September 23 at 7:45PM MST by NWS Flagstaff AZ
Description: At 515 PM MST, a river gauge on the Agua Fria River reported a rapid
rise of 3.3 feet from earlier thunderstorms producing heavy rain.
Between 1 and 2 inches of rain have fallen. Flooding impacts will
continue, but no additional rainfall is expected. Flash flooding is
already occurring.

HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding in and around the Agua Fria River.

SOURCE...River gauge reported.

IMPACT...Life threatening flash flooding of areas in and around the
Agua Fria River.

Some locations that will experience flash flooding include...
Agua Fria National Monument and Black Canyon City.

This includes Interstate 17 between mile markers 243 and 245.

This includes the following creeks, washes and rivers...
Badger Spring Wash, Larry Creek, Agua Fria River, Black Canyon
Creek, Bishop Creek, Squaw Creek, Antelope Creek, Indian Creek,
Slate Creek, Silver Creek, Black Canyon, Tank Creek and Copper
Creek.

Alert: Flood Advisory
Area(s): Maricopa, AZ; Yuma, AZ
Effective: 2026-09-24 @ 12:07 am -> 2026-09-24 @ 3:00 am
Onset: 2026-09-24 @ 12:07 am -> 2026-09-24 @ 3:00 am
Severity: Minor
Certainty: Likely
Urgency: Expected
Issued By: NWS Phoenix AZ on 2026-09-24 @ 12:07 am
Headline: Flood Advisory issued September 23 at 5:07PM MST until September 23 at 8:00PM MST by NWS Phoenix AZ
Description: * WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...Maricopa County in south central Arizona...
Northeastern Yuma County in southwestern Arizona...

* WHEN...Until 800 PM MST.

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

* ADDITIONAL DETAILS...
- At 507 PM MST, Doppler radar indicated heavy rain due to
thunderstorms. Minor flooding is ongoing or expected to begin
shortly in the advisory area. Between 0.5 and 1.5 inches of rain
have fallen.
- This includes the following streams and drainages...
Copper Wash, Columbus Wash, Centennial Wash and Loudermilk Wash.
- Some locations that will experience flooding include...
Sundad.
- http://www.weather.gov/safety/flood

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