Cibuco-Guajataca HUC8 21010002
A 3,162 km² sub-basin of the Caribbean region in PR. 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
71
Moderate
Drought index
36
Abnormally dry
Area in D2+
2.14%
0% exceptional (D4)
Gauges below normal
33%
of 18 reporting
Median flow
90%
p41 of record
Water assets
19
8 springs · 0 wells
USGS gauges (24)
- RIO GRANDE DE ARECIBO ABV UTUADO, PR5002170044 cfsp7 · much below normal
- RIO GRANDE DE ARECIBO NR SAN PEDRO, PR50027600163 cfsp7 · much below normal
- RIO GRANDE DE ARECIBO BLW UTUADO, PR5002495072 cfsp8 · much below normal
- RIO CAONILLAS AT PASO PALMA, PR5002602546 cfsp8 · much below normal
- RIO SALIENTE AT COABEY NR JAYUYA, PR5002515515 cfsp9 · much below normal
- RIO BAUTA NR OROCOVIS, PR5003400015 cfsp14 · below normal
- RIO CIBUCO AT VEGA BAJA, PR5003950078 cfsp39 · normal
- RIO TANAMA NR UTUADO, PR5002800059 cfsp39 · normal
- CANAL DE DERIVACION AT LAGO DE GUAJATACA, PR5001100060 cfsp39 · normal
- CANAL MOCA ABV AGUADILLA PLANT, AGUADILLA, PR500111285 cfsp42 · normal
- CANAL DE MOCA ABV LAGO REGULADOR (E13) ISABELA, PR5001108525 cfsp43 · normal
- RIO LIMON ABV LAGO DOS BOCAS, PR50027000115 cfsp48 · normal
- RIO GUAJATACA AT LARES, PR5001050013 cfsp52 · normal
- CANAL PRINCIPAL DIVERSION BLW FOREBAY, ISABELA, PR18274306700420029 cfsp54 · normal
- RIO GRANDE DE MANATI AT CIALES, PR50035000252 cfsp55 · normal
- RIO CAMUY NR BAYANEY, PR50014800281 cfsp81 · above normal
- RIO TANAMA AT CHARCO HONDO, PR50028400327 cfsp85 · above normal
- RIO GUAJATACA BLW LAGO GUAJATACA, PR50011200393 cfsp99 · much above normal
- CANAL PRINCIPAL DIVERSION ABV. LAGO GUERRERO, PR18283006703590034 cfsno long-term record
- RIO GUAJATACA ABV MOUTH NR QUEBRADILLAS, PR5001140027 cfsno long-term record
- RIO GRANDE DE MANATI AT HWY 155 NR MOROVIS, PR50031000139 cfsno long-term record
- RIO GRANDE DE MANATI NR MANATI, PR50037000331 cfsno long-term record
- RIO GRANDE DE MANATI AT HWY 2 NR MANATI, PR50038100no readingno long-term record
- RIO COROZAL AT COROZAL, PR500383008 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-19 | 36 | 2.14 | 6/18 | p41 |
| 2026-10-18 | 36 | 2.14 | 11/18 | p14 |
| 2026-10-17 | 36 | 2.14 | 14/18 | p9 |
| 2026-10-16 | 36 | 2.14 | 12/18 | p11 |
| 2026-10-15 | 36 | 2.14 | 9/18 | p28 |
| 2026-10-14 | 36 | 2.14 | 14/18 | p10 |
| 2026-10-13 | 36 | 2.14 | 13/18 | p17 |
| 2026-10-12 | 36 | 2.14 | 12/18 | p9 |
| 2026-10-11 | 36 | 2.14 | 13/18 | p10 |
| 2026-10-10 | 36 | 2.14 | 13/18 | p12 |
| 2026-10-09 | 36 | 2.14 | 14/18 | p9 |
| 2026-10-08 | 38 | 2.14 | 14/18 | p11 |
| 2026-10-07 | 38 | 2.14 | 10/18 | p18 |
| 2026-10-06 | 38 | 2.14 | 10/18 | p24 |
Top water assets
- 69Caonillas Damreservoir
- 69North Coast Limestone Aquifer — Arecibo Regionaquifer
- 67Matrullas Damreservoir
- 67Garzas Damreservoir
- 67Guajataca Damreservoir
- 67Dos Bocas Damreservoir
- 67Guineo Damreservoir
- 66Vivi Damreservoir
- 66Pellejas Damreservoir
- 66Lago Reguladorreservoir