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Umpqua HUC8 17100303

A 3,917 km² sub-basin of the Pacific Northwest region in OR. 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
54
Moderate
Drought index
259
Severe
Area in D2+
71.39%
0% exceptional (D4)
Gauges below normal
50%
of 2 reporting
Median flow
70%
p23 of record
Water assets
370
145 springs · 190 wells

USGS gauges (3)

Recent conditions

DateDSCID2+ %Gauges lowFlow pct
2026-10-2025971.391/2p23
2026-10-1925971.391/2p24
2026-10-1825971.391/2p23
2026-10-1725971.391/2p22
2026-10-1625971.391/2p20
2026-10-1525971.391/2p20
2026-10-1425971.391/2p20
2026-10-1325971.391/2p24
2026-10-1225971.391/2p32
2026-10-1125971.391/2p30
2026-10-1025971.391/2p35
2026-10-0925971.390/2p44
2026-10-0825971.390/2p44
2026-10-0725971.390/2p38

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