Elm Fork Trinity HUC8 12030103
A 4,813 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
60
Moderate
Drought index
240
Severe
Area in D2+
29.33%
0% exceptional (D4)
Gauges below normal
31%
of 13 reporting
Median flow
118%
p50 of record
Water assets
1,544
4 springs · 602 wells
USGS gauges (15)
- Doe Br at US Hwy 380 nr Prosper, TX080527454 cfsp2 · much below normal
- Timber Ck nr Collinsville, TX080508000 cfsp10 · below normal
- Range Ck nr Collinsville, TX080508400 cfsp10 · below normal
- Elm Fk Trinity Rv at Greenbelt nr Pilot Point, TX080511358 cfsp17 · below normal
- Clear Ck nr Sanger, TX080515001 cfsp28 · normal
- Hutton Br at N Denton Dr at Carrollton, TX080530901 cfsp49 · normal
- Hickory Ck at Denton, TX080527800 cfsp50 · normal
- Elm Fk Trinity Rv at Spur 348, Irving, TX08055560155 cfsp51 · normal
- Indian Ck at FM 2281, Carrollton, TX080530095 cfsp57 · normal
- Elm Fk Trinity Rv nr Carrollton, TX08055500127 cfsp58 · normal
- Elm Fk Trinity Rv at Gainesville, TX080504002 cfsp59 · normal
- Elm Fk Trinity Rv nr Lewisville, TX08053000285 cfsp65 · normal
- Little Elm Ck nr Aubrey, TX080527006 cfsp86 · above normal
- Elm Fk Trinity Rv at FM 1198 nr Myra, TX080503500 cfsno long-term record
- Timber Ck at S. Edmonds Ln, Lewisville, TX080530250 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 240 | 29.33 | 4/13 | p50 |
| 2026-10-20 | 240 | 29.33 | 3/13 | p53 |
| 2026-10-19 | 240 | 29.33 | 3/13 | p57 |
| 2026-10-18 | 240 | 29.33 | 3/13 | p55 |
| 2026-10-17 | 240 | 29.33 | 4/13 | p56 |
| 2026-10-16 | 240 | 29.33 | 4/13 | p46 |
| 2026-10-15 | 294 | 76.03 | 4/13 | p48 |
| 2026-10-14 | 294 | 76.03 | 4/13 | p53 |
| 2026-10-13 | 294 | 76.03 | 3/13 | p51 |
| 2026-10-12 | 294 | 76.03 | 2/13 | p53 |
| 2026-10-11 | 294 | 76.03 | 2/13 | p55 |
| 2026-10-10 | 294 | 76.03 | 3/13 | p53 |
| 2026-10-09 | 294 | 76.03 | 2/13 | p55 |
| 2026-10-08 | 394 | 100 | 2/13 | p60 |
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