East Fork San Jacinto HUC8 12040103
A 2,577 km² sub-basin of the Texas-Gulf region in TX. 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
49
Stressed
Drought index
190
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
100%
of 4 reporting
Median flow
50%
p17 of record
Water assets
553
11 springs · 209 wells
USGS gauges (8)
- E Fk San Jacinto Rv nr New Caney, TX0807020013 cfsp10 · much below normal
- Peach Ck at Splendora, TX080710009 cfsp17 · below normal
- E Fk San Jacinto Rv nr Cleveland, TX0807000012 cfsp18 · below normal
- Caney Ck nr Splendora, TX0807050011 cfsp18 · below normal
- E Fk San Jacinto Rv at SH 150 nr Coldspring, TX080698000 cfsno long-term record
- Winters Bayou at SH 150 nr Coldspring, TX080698400 cfsno long-term record
- Winters Bayou at Tony Tap Rd nr Cleveland, TX080698525 cfsno long-term record
- Luce Bayou at SH-99 nr Huffman, TX080712504 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-20 | 190 | 0 | 4/4 | p17 |
| 2026-10-19 | 190 | 0 | 4/4 | p16 |
| 2026-10-18 | 190 | 0 | 4/4 | p15 |
| 2026-10-17 | 190 | 0 | 4/4 | p16 |
| 2026-10-16 | 190 | 0 | 3/4 | p20 |
| 2026-10-15 | 145 | 0 | 4/4 | p10 |
| 2026-10-14 | 145 | 0 | 3/4 | p13 |
| 2026-10-13 | 145 | 0 | 4/4 | p10 |
| 2026-10-12 | 145 | 0 | 4/4 | p11 |
| 2026-10-11 | 145 | 0 | 4/4 | p12 |
| 2026-10-10 | 145 | 0 | 4/4 | p12 |
| 2026-10-09 | 145 | 0 | 4/4 | p19 |
| 2026-10-08 | 153 | 0 | 2/4 | p22 |
| 2026-10-07 | 153 | 0 | 1/4 | p40 |
Top water assets
- 66Dunwoody Lake Damreservoir
- 66Moose Jaw Lake Damreservoir
- 66Royal Forest Lake Damreservoir
- 65East Fork San Jacinto Riverriver
- 65Yellow Gate Lake Damreservoir
- 65East Fork San Jacinto Riverriver
- 65Camp Creekriver
- 65Winters Bayouriver
- 65Big Buck Lake Damreservoir
- 65Luce Bayouriver