CIBOLA COUNTY, N.M. – As Cibola County moves deeper into March, the latest water data shows Bluewater Lake continuing its gradual decline, the Rio San Jose holding steady at low levels, and mountain snowpack in the Zuni/Bluewater River Basin effectively disappearing.
With the traditional snowpack peak now past, this week’s numbers raise serious questions about how much natural runoff will be available to support reservoirs and streams later this spring.
Bluewater Lake
Bluewater Lake measured 7,368.09 feet in elevation on March 16, according to the latest provisional data from the U.S. Geological Survey. That is down from 7,368.25 feet recorded March 9, continuing a slow but consistent downward trend.
While week-to-week changes are small, the lake has shown no measurable response to winter precipitation events, reflecting the limited snowpack available to feed the reservoir.
Rio San Jose
The Rio San Jose at Acoma Pueblo measured 1.86 feet on March 16, unchanged from the previous week.
The river has remained within a narrow range for several weeks, indicating stable but shallow base flow conditions. Without meaningful snowmelt or sustained precipitation, the gauge has shown little variation through the late winter period.
Zuni/Bluewater Snowpack Snowpack conditions in the Zuni/Bluewater River Basin have now dropped to effectively zero.
Data from the NRCS SNOTEL site at Rice Park, elevation 8,480 feet, shows 0.0 inches of snow water equivalent as of March 16. The median for this date is 2.9 inches, while the basin’s median seasonal peak is 6.0 inches, typically occurring in early March.
The basin index now stands at 0 percent of normal. The loss of snowpack at this point in the season significantly reduces the likelihood of a strong spring runoff. Snow water equivalent represents the amount of water stored in mountain snowpack that can eventually melt and flow into rivers, reservoirs, and groundwater systems. With little remaining snowpack in the Zuni Mountains, Bluewater Lake and the Rio San Jose are unlikely to see substantial recharge unless late-season storms arrive.
Taken together, this week’s data reinforces a pattern that has been developing since early winter.
Bluewater Lake continues to edge downward, the Rio San Jose remains steady but low, and the snowpack that typically drives spring recharge has largely disappeared. As Cibola County transitions from winter into the early stages of the warm season, the focus will increasingly shift toward rainfall and summer monsoon activity as potential sources of water replenishment.