Rio Grande De Loiza at Quebrada Arenas, PR
River level and flood forecast · San Lorenzo County
The river is 6.7 ft below flood stage (12 ft).
Flow: 21 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 at Quebrada Arenas to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 21 ft |
| Moderate flood stage | 16 ft |
| Flood stage | 12 ft |
| Action stage | 9 ft |
| Record crest (September 21, 1998) | 26.37 ft |
What floods at each level
From the National Weather Service, highest first.
- 15.41 ftBarrio Jagual, Sector Los Diaz bridge destroyed; Sector Merilla took away bridge; landslides in various areas of the Mjnicipality, Barrio Quebrada Honda, Sectores La Escuela, Jacobo Perez, Carr 181 Quebrada Arena, Barrio Quemados, Carr 181, Ramal 788
- 11 ftRio Grande de Loiza out of its banks on road PR-9912 intersecting road PR-181. /OMS 2/2022
Highest crests on record
- 26.37 ft — September 21, 1998
- 25.93 ft — September 10, 1996
- 17.52 ft — January 5, 1992
- 14.78 ft — November 5, 1983
- 14.01 ft — September 18, 2022
Recent crests: 12.29 ft (June 2, 2024) · 14.01 ft (September 18, 2022) · 11.31 ft (February 6, 2022) · 11.27 ft (March 23, 2020) · 11.42 ft (April 29, 2019)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (SLLP4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.