Rio Piedras at Hato Rey, PR
River level and flood forecast · San Juan County
The river is 11.3 ft below flood stage (15 ft).
Flow: 15 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 Piedras at Hato Rey to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 19 ft |
| Moderate flood stage | 17 ft |
| Flood stage | 15 ft |
| Action stage | 9 ft |
| Record crest (September 20, 2017) | 22.91 ft |
What floods at each level
From the National Weather Service, highest first.
- 15.24 ftThe following roads were flooded in Bo. Obrero: Avenida Kennedy, Avenida Barbosa, Avenida Munoz Rivera, AvenidaRoosevelt. Avenida Simon Madera, Avenida de Diego, and Calle Notre Dame in University Gardens.
Highest crests on record
- 22.91 ft — September 20, 2017
- 22.47 ft — November 15, 2009
- 22.11 ft — September 10, 1996
- 21.17 ft — May 23, 2004
- 20.77 ft — June 17, 1970
Recent crests: 15.78 ft (October 31, 2024) · 18.35 ft (August 14, 2024) · 16.93 ft (May 3, 2024) · 15.76 ft (April 28, 2023) · 17.08 ft (November 6, 2022)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (RPOP4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.