Meteo-France, the French weather service, is predicting “flooding rains” Friday evening when the opening ceremony is set to unroll along the Seine River.

But the show is set to go on as planned, starting at 1:30 p.m. EDT/7:30 p.m. CEST and should last more than three hours.

Already in the late afternoon, skies were gray with intermittent drizzle. There was a silver lining, though, with temperatures expected to stay relatively warm throughout the evening.

Instead of a traditional march into a stadium, about 6,800 athletes will parade on more than 90 boats on the Seine River for 6 kilometers (3.7 miles).

Though 10,700 athletes are expected to compete at these Olympics, hundreds of soccer players are based outside Paris, surfers are in Tahiti and many have yet to arrive for their events in the second week, organizers said Thursday.

Hundreds of thousands of people, including 320,000 paying and invited ticket-holders, are expected to line the Seine’s banks as athletes are paraded along the river on boats.

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