Case Study: San Juan, Puerto Rico achieves life-saving 5-day advance warning for Hurricane Maria with AccuWeather For Business

AccuWeather First to Predict Life-Saving Impact Driven, Detailed Forecasts Ahead of Hurricane Maria

San Juan Puerto Rico faced catastrophic impacts from Category 4 Hurricane Maria when it made landfall on September 20, 2017, bringing extreme winds, flooding, and mudslides. AccuWeather For Business, through AccuWeather Enterprise Solutions, supported residents and clients by issuing impact-driven, detailed forecasts and warnings about likely power outages, structural damage, and life‑threatening winds days before other providers.

AccuWeather For Business issued actionable briefings beginning September 15—five days before landfall—forecasting hurricane conditions with peak gusts around 122 mph and sustained winds of 130+ mph, and repeatedly warned of mudslides, flooding, and widespread outages. Those advance forecasts provided critical lead time for preparation and response; after Maria the island experienced total power loss and severe infrastructure damage, underscoring the value of AccuWeather For Business’ early, accurate warnings.

San Juan Puerto Rico