Rio De La Plata at Comerio, PR
River level and flood forecast · Comerio County
The river is 7.3 ft below flood stage (13 ft).
Flow: 59 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.
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An email when the National Weather Service forecasts Rio De La Plata at Comerio to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 18 ft |
| Moderate flood stage | 15 ft |
| Flood stage | 13 ft |
| Action stage | 10 ft |
| Record crest (September 20, 2017) | 34.86 ft |
What floods at each level
From the National Weather Service, highest first.
- 39 ftWhile this level has never been reached, flood waters could affect Calle Palma Real.
- 34 ftRio de la Plata will cause backwater along Quebrada Higuero. The structures nearby will experience additional flooding.
- 32.4 ftThis was the crest the USGS reported during Hurricane Fiona.
- 31 ftFlood waters will go beyond Calle Georgetti, reaching Antolin Santos Negron Professional High School. Flooding in Ariel will be extensive. Most areas in the areas next to the river at Comerio urbano will be flooded.
- 28 ftExtensive flooding affecting Estadio Municipal Carlos Bonet and nearby structures. Roads and residences will be affected by floodwaters. PR-775 will be completely impassable. Residential flooding will be widespread along the houses next to PR-156.
- 26 ftFlood waters will affect Estadio Municipal Carlos Bonet. The houses west of the stadium will likely be flooded, with depths of 4 to 6 feet. Calle 7 and Calle 1 will begin to be covered by water.
- 25.5 ftThe floodwaters at Supermercado Econo will be 3 to 4 feet deep. Flood waters at Calle Santiago R. Palmer, intersection Jose de Diego will see significant flooding. Roads will remain impassable and the water will likely affect the nearby structures. Flood waters will also begin to affect road PR-775 at the confluence with Quebrada Pina, and nearby parking lots will be affected.
- 25 ftThe structures at PR-156, near the confluence of Quebrada Convento will begin to be affected by flood waters. The nearby terrain will be at a depth of nearly one foot of inundation.
- 24 ftFlood waters will begin to affect portions of Urb. Ariel, mostly affecting Calle 12.
- 22.5 ftFlooding begins at Calle Georgeti and Calle Santiago R. Palmer. The business and residences closer to the river will likely be impacted by flood waters. Flooding will also begin to affect areas along PR-740, at the Confluence of Quebrada Pina, east of Estadio Municipal Carlos Bonet. Roads will likely become impassable.
- 22 ftFlood waters will begin to affect the parking lot of Econo Supermarket. Flood waters at Calle Jose de Diego will be at a depth of 2 to 4 feet, likely affecting nearby structures. Roads will become impassable.
- 20 ftFlood waters will begin to affect the yards of the houses next to Calle 7. The depth of the water should be low, but probably enough to begin affecting nearby houses.
- 16 ftFlood waters begin to reach Calle Jose de Diego, near Oficina Regional del Procurador del Paciente.
Highest crests on record
- 34.86 ft — September 20, 2017
- 32.4 ft — September 22, 2022
- 29.22 ft — January 5, 1992
- 27.78 ft — September 10, 1996
- 24.83 ft — September 21, 1998
Recent crests: 13.21 ft (September 9, 2025) · 13 ft (August 17, 2025) · 15.5 ft (May 4, 2025) · 15.59 ft (May 3, 2025) · 14.04 ft (May 2, 2025)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (COMP4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.