Over the weekend, northern portions of the Leeward Islands, the Virgin Islands, and Puerto Rico are expected to receive tropical rain ranging from 2 to 4 inches, with isolated totals up to 6 inches. Flash flooding, landslides and mudslides will be the main concerns over the next several days.

Hurricane Erin has strengthened to a dangerous Category 5 storm, but remains on track to just send dangerous surf and rip currents to the Jersey Shore.

Hurricane Erin is bringing heavy rain to the U.S. Virgin Islands on Saturday as the Category 5 storm moves through the Caribbean

The longstanding hurricane rating system, the Saffir-Simpson Scale, only takes into account sustained wind speeds and not the full devastating impact of a hurricane.