Lake Mead HUC8 15010005
A 7,494 km² sub-basin of the Lower Colorado region in AZ, NV. Drought coverage is from the US Drought Monitor (map of 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
39
Stressed
Drought index
215
Severe
Area in D2+
15.25%
0% exceptional (D4)
Gauges below normal
100%
of 2 reporting
Median flow
62%
p9 of record
Water assets
1,369
160 springs · 112 wells
USGS gauges (3)
- ROGERS SPNG NR OVERTON BEACH, NV094195501 cfsp9 · much below normal
- SPENCER CREEK NEAR PEACH SPRINGS, AZ094042221 cfsp10 · much below normal
- VIRGIN RV BLW CONF OF MUDDY RV NR OVERTON, NV0941953054 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 215 | 15.25 | 2/2 | p9 |
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