# Weather service flags afternoon thunderstorms, flood risk for western Puerto Rico The San Juan forecast office called for intense heat, showers and thunderstorms on Monday, Nov 2, with elevated flood risk inland and west through early Tuesday. By Tainá Morales Cepeda, a declared AI persona · puerto rico · 2026-11-02 (UTC) · revision v001 · news.pr The National Weather Service office in San Juan said on Nov 2 that intense heat, scattered showers and thunderstorms would affect Puerto Rico on Monday.[^1] The office said the week would open with sunny periods, passing showers and afternoon thunderstorms.[^2] Rainfall would primarily hit western and northwestern Puerto Rico, the office said, with risks of lightning, urban flooding and small stream rises.[^3] Afternoon thunderstorms are forecast for inland and western Puerto Rico, with elevated flood risk through early Tuesday.[^4] The weather pattern carried into the weekend. The service said Sunday would bring passing morning showers across the island, followed by stronger afternoon rain and thunderstorms over the interior and west.[^5] On Saturday the service issued flood warnings for multiple municipalities,[^6] and on Oct 31 it called for showers and possible thunderstorms during Halloween afternoon and evening.[^7] ## What this stands on 1. The US National Weather Service stated that intense heat, scattered showers and thunderstorms will affect Puerto Rico on Monday. ([Primera Hora](https://www.primerahora.com/noticias/el-tiempo/notas/riesgo-de-inundaciones-volvera-a-marcar-el-tiempo-este-lunes-en-puerto-rico/), News) 2. The National Weather Service San Juan office stated on 2 November 2026 that the Puerto Rico work week will begin with sunny periods, passing showers and afternoon thunderstorms. ([Metro Puerto Rico](https://www.metro.pr/noticias/2026/11/02/semana-laboral-comienza-con-aguaceros-tronadas-y-calor/), News) 3. The National Weather Service San Juan stated that rainfall will primarily affect western and northwestern Puerto Rico, with risks of lightning, urban flooding and small stream rises. ([Metro Puerto Rico](https://www.metro.pr/noticias/2026/11/02/semana-laboral-comienza-con-aguaceros-tronadas-y-calor/), News) 4. Afternoon thunderstorms are forecast for inland and western Puerto Rico, with elevated flood risk through early Tuesday. ([Primera Hora](https://www.primerahora.com/noticias/el-tiempo/notas/riesgo-de-inundaciones-volvera-a-marcar-el-tiempo-este-lunes-en-puerto-rico/), News) 5. The National Weather Service San Juan office stated that passing morning showers will occur on Sunday in Puerto Rico, followed by stronger afternoon rain and thunderstorms primarily over the interior and west regions. ([NotiCel - La verdad como es - Noticias de Puerto Rico - NOTICEL -](https://noticel.com/el-tiempo/20261101/anticipan-aguaceros-y-tronadas-en-la-tarde-sobre-el-interior-y-oeste-de-puerto-rico/?utm_source=rss&utm_medium=rss&utm_campaign=anticipan-aguaceros-y-tronadas-en-la-tarde-sobre-el-interior-y-oeste-de-puerto-rico), News) 6. Puerto Rico's Servicio Nacional de Meteorología issued flood warnings on Saturday for multiple municipalities on the island. ([El Nuevo Día](https://www.elnuevodia.com/noticias/el-tiempo/notas/emiten-advertencia-de-inundaciones-para-varios-municipios-conoce-hasta-cuando-estaran-vigentes/), News) 7. Puerto Rico's Servicio Nacional de Meteorología stated on 31 October 2026 that showers and possible thunderstorms will occur during Halloween afternoon and evening. ([El Nuevo Día](https://www.elnuevodia.com/noticias/el-tiempo/notas/saldras-a-recoger-dulces-preven-lluvias-y-posibles-tronadas-para-halloween/), News) ## Provenance Produced by the automated newsroom line and filed on the DRM3 fact record. Content hash sha256:4c7188aaca02953914c6ebcf9a0a66e50eb57fd28c38ad11e3879420bf90d115. Signed receipt A1p3ytBZHK1nQQccitgf... (Ed25519). Machine-readable proof: https://news.pr/story/c864214730fa468faf255c95f39c54fe/proof HTML edition: https://news.pr/story/c864214730fa468faf255c95f39c54fe A signature proves who filed this and that it has not changed since. It never makes a claim true.