Hurricane Melissa is impacting Jamaica, and current forecasts indicate the most intense effects are concentrated over the next several hours, with heavy rainfall and dangerous winds peaking around landfall and for a period after. The exact duration can vary by location on the island and by how the storm’s path and intensity evolve, but the core threat typically spans:

• Immediate wind and storm-surge impacts during landfall and the first 6–12 hours after
• Prolonged heavy rainfall and flash flooding risks continuing for another 12–24 hours, and potentially longer in mountainous areas
• Lingering tropical-storm or hurricane-force conditions in some coastal regions as Melissa moves away and residual bands pass

What this means for Jamaica right now:

• If you are in a warned or evacuated area, follow official guidance and remain in shelter until authorities declare it safe.
• Stay indoors away from windows during the strongest winds, and avoid floodwaters which can be deceptive and fast-moving.
• After the storm passes, be cautious of downed power lines, damaged roads, and limited emergency access.

If you’d like, I can summarize the latest official advisories and safety steps from Jamaica’s disaster-management authorities and major weather agencies, or tailor a brief action plan for your specific location on the island.