Muddy HUC8 15010012

A 4,696 km² sub-basin of the Lower Colorado region in NV. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.

Health score

Stressed

Drought index

240

Severe

Area in D2+

39.78%

0% exceptional (D4)

Gauges below normal

71%

of 7 reporting

Median flow

92%

p10 of record

Water assets

528

96 springs · 153 wells

USGS gauges (8)

PEDERSON SPGS NR MOAPA, NV
094159100 cfsp7 · much below normal
WARM SPGS W NR MOAPA, NV
094159203 cfsp9 · much below normal
WARM SPGS CONFL AT IVERSON FLUME NR MOAPA, NV
094159274 cfsp10 · much below normal
PEDERSON E SPGS NR MOAPA, NV
094159080 cfsp10 · below normal
MUDDY SPGS AT LDS FARM NR MOAPA, NV
094159007 cfsp24 · below normal
MUDDY RV NR MOAPA, NV
0941600041 cfsp56 · normal
MUDDY RV NR GLENDALE, NV
0941900078 cfsp87 · above normal
WARM SPGS W INFLOW NR MOAPA, NV
094159153 cfsno long-term record

Recent conditions

Date	DSCI	D2+ %	Gauges low	Flow pct
2026-10-22	240	39.78	5/7	p10
2026-10-21	240	39.78	4/7	p10
2026-10-20	240	39.78	4/7	p10
2026-10-19	240	39.78	4/7	p14
2026-10-18	240	39.78	4/7	p10
2026-10-17	240	39.78	4/7	p10
2026-10-16	240	39.78	4/7	p10
2026-10-15	300	100	4/7	p16
2026-10-14	300	100	3/7	p25
2026-10-13	300	100	3/7	p25
2026-10-12	300	100	3/7	p25
2026-10-11	300	100	4/7	p10
2026-10-10	300	100	4/7	p10
2026-10-09	300	100	4/7	p10

Top water assets

View on the map All Lower Colorado sub-basins