Overview
- Local forecasts say winds have become more westerly, which is steering early‑afternoon storms inland and pushing them toward the east coast where they will redevelop into the late afternoon and evening.
- Storms are expected to be slow movers with repeated rounds of heavy rain that can produce intense downpours and localized flash flooding, especially for Palm Beach County, the Treasure Coast and nearby inland areas.
- Temperatures will climb into the lower-to-mid 90s before storms, producing heat indices commonly above 100°F and locally near 108–110°F, and Miami has recorded a long consecutive run of days at or above 90°F.
- Forecasters expect elevated rain chances through Wednesday but project drier air and Saharan dust associated with a strong El Niño to cut storm coverage later in the week and keep the Atlantic basin largely quiet.
- Residents, outdoor workers and vulnerable populations should monitor NWS alerts for heavy-rain and flood warnings because localized flooding can block roads, disrupt commutes and strain cooling and emergency services.