Rivers in Puerto Rico

Rio Blanco at Florida

Naguabo County, Puerto RicoNWS NGKP4USGS 50075500San Juan office

Action stage
6.68ftStage

Observed Tue, Sep 22, 4:50 PM AST

Flood stage
7.30 ft
Record crest
17.04 ft2019

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood16.00 ft
Moderate flood9.00 ft
Minor flood7.30 ft
Action5.00 ft
  1. 20.00 ft20.00 ft Rio Blanco out of its banks - Road #3(HWY 53) and Road 191/31 impassable. OMS/5.2019
  2. 10.00 ftRoad 31 and 191 impassable. Road #31 intersection with Road #3(HWY 53) impassable. OMS/5.2019
  3. 7.00 ftRio Blanco out of its banks causing flooding along low lying areas. Road PR-191 could be impassable. Road PR-31, Exit 22 toward Highway PR-53 will be impassable as well. the exit toward the highway may be flooded as well.

Crest history

82 crests on NOAA’s list since 2019.

#DateStage
1July 30, 201917.04 ft
2August 14, 202417.00 ft
3November 5, 202416.86 ft
4June 5, 202414.11 ft
5July 30, 202013.57 ft
6June 2, 202412.81 ft
7October 27, 202212.22 ft
8May 22, 202312.12 ft
9November 5, 202211.80 ft
10July 20, 201911.51 ft
11November 1, 202511.39 ft
12October 31, 202411.19 ft
13November 1, 202410.84 ft
14July 2, 202210.81 ft
15November 25, 202110.47 ft
16September 29, 201910.34 ft
17November 15, 202210.33 ft
18October 5, 202310.33 ft
19March 14, 202510.27 ft
20November 10, 202410.24 ft
21July 9, 202310.21 ft
22May 15, 202510.16 ft
23June 27, 202110.04 ft
24October 18, 20209.90 ft
25May 23, 20219.88 ft

Most recent crests

  • March 28, 2026: 9.04 ft
  • November 1, 2025: 11.39 ft
  • September 25, 2025: 8.89 ft
  • September 18, 2025: 9.47 ft
  • September 8, 2025: 8.27 ft
  • August 17, 2025: 8.44 ft
  • May 16, 2025: 9.36 ft
  • May 15, 2025: 10.16 ft
  • May 11, 2025: 8.80 ft
  • May 9, 2025: 8.04 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Southeast River Forecast Center. Forecasts are not available. Only observed stages are available for this point.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.