Extreme Heat Warning
2026-08-21T20:00:00-07:00

* WHAT...Dangerously hot conditions expected. Afternoon temperatures 106 to 114. Major Heat Risk. * WHERE...Aguila Valley, Apache Junction/Gold Canyon, Cave Creek/New River, Fountain Hills/East Mesa, Gila Bend, Northwest Pinal County, Sonoran Desert Natl Monument, Tonopah Desert, and West Pinal County. * WHEN...From 10 AM Monday to 8 PM MST Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * ADDITIONAL DETAILS...In Maricopa County, call 2-1-1 to find a free cooling center, transportation, water and more. https://www.maricopa.gov/heat

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Arizona

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Extreme Heat Warning
Until 2026-08-16T03:00:00-07:00 • National Weather Service
* WHAT...Dangerously hot conditions expected. Afternoon temperatures 106 to 114. Major Heat Risk. * WHERE...Aguila Valley, Apache Junction/Gold Canyon, Cave Creek/New River, Fountain Hills/East Mesa, Gila Bend, Northwest Pinal County, Sonoran Desert Natl Monument, Tonopah Desert, and West Pinal County. * WHEN...From 10 AM Monday to 8 PM MST Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * ADDITIONAL DETAILS...In Maricopa County, call 2-1-1 to find a free cooling center, transportation, water and more. https://www.maricopa.gov/heat

FLORENCE-CASA GRANDE CANAL, NEAR FLORENCE, AZ.

Realtime Data • Report • Conditions

232

Discharge (cfs)

3.7

Gauge Height (ft)

USGS 09475500

Streamflow discharge was last observed at 232 cfs, and a gauge height of 3.73 feet. With the % decrease since yesterday, the streamflow average over the past 10 days is 66 .

Weather today, Tomorrow,

The main flow provider for the canal is the Gila River, with the potential for several tributaries to impact its flow. Seasonal trends show increased flow during the summer months due to monsoon rains and snowmelt. The canal is also impacted by upstream dams, including the Theodore Roosevelt Dam. Interestingly, the canal was originally built in the early 1900s for agricultural purposes and is still in use today. Overall, the Florence Casa Grande Canal stream gauge provides valuable data for understanding the hydrology of the region and managing its water resources.

August 15, 2026

Elevation	1,557.0 ft
Last Updated
Gage height, ft	3.73 ft
Streamflow, ft³/s	232.0 ft3/s
Percent of Normal	79%
Year Over Year Average	295 cfs
24hr Flow Prediction	cfs
Maximum Recorded	682 cfs
Geolocation	33.09, -111.29

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Florence-Casa Grande Canal, Near Florence, Az. Realtime Data

FLORENCE-CASA GRANDE CANAL, NEAR FLORENCE, AZ.

Realtime Data • Report • Conditions

232

Discharge (cfs)

3.7

Gauge Height (ft)

August 15, 2026

Seasonal Comparison

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Florence-Casa Grande Canal, Near Florence, Az. Realtime Data

FLORENCE-CASA GRANDE CANAL, NEAR FLORENCE, AZ.

Realtime Data • Report • Conditions

232

Discharge (cfs)

3.7

Gauge Height (ft)

August 15, 2026

Seasonal Comparison

Oceanic Nino Index

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