Red Flag Warning
2026-03-13T20:00:00-06:00

The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM to 8 PM MDT Friday. A Fire Weather Watch has also been issued. This Fire Weather Watch for wind and low relative humidity is in effect from Saturday morning through Saturday evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248 and 249. * TIMING...For the first Red Flag Warning, until 9 PM MDT this evening. For the second Red Flag Warning, from 11 AM to 8 PM MDT Friday. For the Fire Weather Watch, from Saturday morning through Saturday evening. * WINDS...On Thursday, west 30 to 60 mph with gusts up to 90 mph, strongest winds near the Cheyenne Ridge. On Friday, west winds 25 to 35 with gusts around 35 to 50 mph. On Saturday, west winds 25 to 35 with gusts around 40 to 60 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.


Santa Cruz River River Levels

Last Updated: March 12, 2026

The Santa Cruz River is a 184-mile-long river that flows through the southern part of Arizona and northern part of Mexico.


Summary

Total streamflow across the Santa Cruz River was last observed at 98 cfs, and is expected to yield approximately 194 acre-ft of water today; about 96% of normal. Average streamflow for this time of year is 102 cfs, with recent peaks last observed on 2021-07-26 when daily discharge volume was observed at 20,367 cfs.

Maximum discharge along the river is currently at the Santa Cruz River At Cortaro reporting a streamflow rate of 54.2 cfs. However, the streamgauge with the highest stage along the river is the Santa Cruz River At Tubac with a gauge stage of 19.48 ft. This river is monitored from 9 different streamgauging stations along the Santa Cruz River, the highest being situated at an altitude of 6,489 ft, the Santa Cruz River Near Cundiyo.




15-Day Weather Outlook


River Details

Last Updated 2026-03-12
Discharge Volume 194 ACRE-FT
Streamflow 97.89 cfs
-10.0 cfs (-9.27%)
Percent of Normal 96.31%
Maximum 20,366.8 cfs
2021-07-26
Seasonal Avg 102 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Santa Cruz River Near Cundiyo
USGS 08291000
10 cfs 4.28 ft 0
Santa Cruz River Near Lochiel
USGS 09480000
0 cfs 6.23 ft 0
Santa Cruz River Near Nogales
USGS 09480500
2 cfs 1.12 ft 0
Santa Cruz River At Tubac
USGS 09481740
1 cfs 19.48 ft -87.95
Santa Cruz River At Continental
USGS 09482000
0 cfs 1.15 ft None
Santa Cruz River At Tucson
USGS 09482500
0 cfs 1.03 ft None
Santa Cruz River At Cortaro
USGS 09486500
54 cfs 8.52 ft 3.04
Santa Cruz River At Trico Road
USGS 09486520
34 cfs 2.83 ft -1.16
Santa Cruz River Near Laveen
USGS 09489000
0 cfs 8.27 ft 0
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

The Santa Cruz River (English: "Holy Cross River"; Spanish: Río Santa Cruz) is a tributary river to the Gila River in Southern Arizona and northern Sonora, Mexico. It is approximately 184 miles (296 km) long.