Live National Weather Service alerts, NEXRAD weather radar, USGS river and stream gauges, Storm Prediction Center convective outlooks, Local Storm Reports, 5-day forecast, air quality, and severe-weather notifications for San Sebastián Municipio, PR (FIPS 72131) in PR. Free, no login, no ads.
San Sebastián Municipio, PR is one of the U.S. counties covered by BloomWX. San Sebastián Municipio, PR has a population of approximately 39,183 (2022 estimate, US Census Bureau). The county covers 70.4 square miles of land area.
San Sebastián Municipio, PR is served by the National Weather Service SJU forecast office for warnings, watches, advisories, and decision-support services. The same office produces the Hazardous Weather Outlook, Area Forecast Discussion, and DSS briefing packets you'll see on the BloomWX dashboard for this county.
BloomWX also covers the surrounding counties: Las Marías County, PR, Lares County, PR, Añasco County, PR, Quebradillas County, PR, Camuy County, PR, Isabela County, PR, Moca County, PR.
BloomWX is a free weather operations dashboard for SKYWARN storm spotters, emergency management volunteers, ham radio nets, and anyone in San Sebastián Municipio, PR who needs the official NWS data without the consumer-app cruft. Data is pulled directly from weather.gov and refreshes every 60 seconds. Sources: National Weather Service, Storm Prediction Center, USGS Water Data, NOAA Space Weather Prediction Center, Open-Meteo (Air Quality), and the Citizen Weather Observer Program.
Read the BloomWX learn library for beginner-friendly explainers on every dashboard surface, including SPC convective outlooks (TSTM/MRGL/SLGT/ENH/MDT/HIGH), NEXRAD radar, USGS flood gauges, and WPC surface analysis charts.