San Juan, Puerto Rico
Regional Weather Alerts
| Alert: | Flood Advisory |
| Area(s): | Culebra, PR |
| Effective: | 2026-04-13 @ 7:57 am -> 2026-04-13 @ 11:00 am |
| Onset: | 2026-04-13 @ 7:57 am -> 2026-04-13 @ 11:00 am |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS San Juan PR on 2026-04-13 @ 7:57 am |
| Headline: | Flood Advisory issued April 13 at 8:57AM AST until April 13 at 12:00PM AST by NWS San Juan PR |
| Description: |
* WHAT...Urban and small stream flooding caused by excessive rainfall is expected. * WHERE...Culebra. * WHEN...Until noon AST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 856 AM AST, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Up to 1 inch of rain has fallen. - Additional rainfall amounts of 1 to 3 inches are expected over the area. This additional rain will result in minor flooding. - http://www.weather.gov/safety/flood |
| Alert: | Flood Advisory |
| Area(s): | Vieques, PR |
| Effective: | 2026-04-13 @ 7:57 am -> 2026-04-13 @ 11:00 am |
| Onset: | 2026-04-13 @ 7:57 am -> 2026-04-13 @ 11:00 am |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS San Juan PR on 2026-04-13 @ 7:57 am |
| Headline: | Flood Advisory issued April 13 at 8:57AM AST until April 13 at 12:00PM AST by NWS San Juan PR |
| Description: |
* WHAT...Urban and small stream flooding caused by excessive rainfall is expected. * WHERE...Vieques. * WHEN...Until noon AST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 856 AM AST, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Up to 1 inch of rain has fallen. - Additional rainfall amounts of 1 to 3 inches are expected over the area. This additional rain will result in minor flooding. - http://www.weather.gov/safety/flood |
| Alert: | Flood Watch |
| Area(s): | San Juan and Vicinity; Northeast; Southeast; Eastern Interior; North Central; Central Interior; Ponce and Vicinity; Northwest; Western Interior; Mayaguez and Vicinity; Southwest; Culebra; Vieques; St.Thomas...St. John.. and Adjacent Islands; St Croix |
| Effective: | 2026-04-13 @ 2:05 am -> 2026-04-15 @ 7:00 am |
| Onset: | 2026-04-13 @ 9:00 am -> 2026-04-13 @ 2:30 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS San Juan PR on 2026-04-13 @ 2:05 am |
| Headline: | Flood Watch issued April 13 at 3:05AM AST until April 15 at 8:00AM AST by NWS San Juan PR |
| Description: |
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Puerto Rico, including the following areas, Central Interior, Culebra, Eastern Interior, Mayaguez and Vicinity, North Central, Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, Southwest, Vieques and Western Interior and Virgin Islands, including the following areas, St Croix and St.Thomas...St. John...and Adjacent Islands. * WHEN...From 10 AM AST this morning through Wednesday morning. * IMPACTS...Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - As a trough continues to approach from the northwest, the likelihood of flooding will increase. The heaviest activity is anticipated for later this afternoon into early morning hours on Tuesday. Based on the latest guidance and the atmospheric set-up, the confidence is increasing though the exact placement remains uncertain. - http://www.weather.gov/safety/flood |