Rio Grande De Loiza below Dam, PR
River level and flood forecast · Trujillo Alto County
The river is 17.1 ft below flood stage (22 ft).
Flow: 390 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.
Get flood alerts for this river
An email when the National Weather Service forecasts Rio Grande De Loiza below Dam to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 42 ft |
| Moderate flood stage | 32 ft |
| Flood stage | 22 ft |
| Action stage | 12 ft |
| Record crest (September 10, 1996) | 49.31 ft |
What floods at each level
From the National Weather Service, highest first.
- 26.94 ftWater beneath the houses in Canovanas past the confluences of Rio Canovanas and Rio Canovanillas
- 23.61 ftRiver out of its banks along Road #3 at town entrance in Carolina, Flooding also occurring in the parking lot of the Roberto Clemente Coliseum.Roads #853 and #858 blocked
Highest crests on record
- 49.31 ft — September 10, 1996
- 47.93 ft — September 20, 2017
- 47.01 ft — October 14, 1997
- 44.65 ft — September 19, 2022
- 39.57 ft — November 27, 1987
Recent crests: 25.36 ft (May 3, 2025) · 24.41 ft (November 17, 2024) · 22.26 ft (November 10, 2024) · 27.91 ft (August 14, 2024) · 30.36 ft (June 2, 2024)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (TRUP4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.