National Weather ServicePuerto RicoFlood WarningArchive to October 1, 2026
Flood Warnings in Puerto Rico
The National Weather Service issued 56 flood warnings for Puerto Rico in 2025 and 33 a year on average in 2008-2025; in 2021-2025 it had the 37th most of any state. 2026 through September: 19, 20% below the average of 24 for those months in 2008-2025. Aguada was covered most often (119 times since 2008).
How many flood warnings does Puerto Rico get?
Every flood warning that covered part of Puerto Rico. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 19 |
| 2025 | 56 |
| 2024 | 58 |
| 2023 | 14 |
| 2022 | 39 |
| 2021 | 4 |
| 2020 | 17 |
| 2019 | 22 |
| 2018 | 8 |
| 2017 | 61 |
| 2016 | 33 |
| 2015 | 13 |
| 2014 | 15 |
| 2013 | 15 |
| 2012 | 47 |
| 2011 | 72 |
| 2010 | 67 |
| 2009 | 37 |
| 2008 | 24 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Puerto Rico get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Puerto Rico?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Aguada | 119 | 10 | May 16, 2026 |
| Aguadilla | 107 | 10 | May 16, 2026 |
| Manati | 92 | 24 | March 29, 2026 |
| Moca | 80 | 10 | May 16, 2026 |
| Mayaguez | 74 | 6 | May 3, 2025 |
| Barceloneta | 73 | 17 | October 10, 2025 |
| Vega Baja | 71 | 13 | March 25, 2026 |
| Hormigueros | 71 | 6 | May 3, 2025 |
| Vega Alta | 69 | 14 | March 25, 2026 |
| Cabo Rojo | 66 | 5 | May 3, 2025 |
| Arecibo | 53 | 6 | May 5, 2025 |
| Toa Baja | 49 | 7 | September 13, 2025 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
The latest flood warnings for Puerto Rico in AreaZine's record
NWS San JuanWarningMay 15, 2026
Flood Warning: Aguada, Aguadilla and Moca, PR
Expired 2:15 a.m. EDT, May 16, 2026
NWS San JuanWarningApril 18, 2026
Flood Warning: Aguada, Aguadilla and Moca, PR
Expired 6:30 a.m. EDT, April 19, 2026
NWS San JuanWarningApril 18, 2026
Flood Warning: Aguada and Aguadilla, PR
Expired 12:00 p.m. EDT, April 18, 2026
NWS San JuanWarningApril 17, 2026
Flood Warning: Aguada, Aguadilla, Moca and 1 more, PR
Expired 5:30 a.m. EDT, April 18, 2026
NWS San JuanWarningApril 16, 2026
Flood Warning: Gurabo, PR
Expired 10:30 p.m. EDT, April 16, 2026
NWS San JuanWarningApril 16, 2026
Flood Warning: Juncos, Las Piedras and San Lorenzo, PR
Expired 8:00 p.m. EDT, April 16, 2026
NWS San JuanWarningApril 16, 2026
Flood Warning: Humacao and Yabucoa, PR
Expired 7:45 p.m. EDT, April 16, 2026
NWS San JuanWarningApril 16, 2026
Flood Warning: Yabucoa, PR
Expired 9:00 a.m. EDT, April 18, 2026
This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.
Source: National Weather Service alerts (api.weather.gov).
What is a flood warning?
A flood warning means flooding is happening or about to happen. The NWS issues it both for rivers at forecast points (river flood warnings) and for areas where water ponds or runs off (areal flood warnings); AreaZine counts both. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. The national record · Every warning type in Puerto Rico.