Double Rainbow Wows Giants Fans

Giants fans hoped the rainbow would bring the home team good luck. It didn't work with the Giants losing to the D'backs.

Bay Area residents, including several thousand San Francisco Giants fans, were treated to a rare sight Wednesday evening: a double rainbow.

Photos of the double rainbow were captured and posted online from the Giants game at AT&T Park, various San Francisco neighborhoods including Potrero Hill, Bernal Heights, the Presidio, Nob Hill and the Financial District, and across the Bay looking toward the city from parts of Alameda and Contra Costa counties.

The rainbows was visible throughout the region shortly before 7:30 p.m. The bright arcs made for an impressive sunset as a storm front moved through the area,  National Weather Service meteorologist Steve Anderson said.

The same weather system sparked lightning in the South Bay throughout Wednesday, and then again early Thursday morning in San Jose and Livermore, Anderson said.

The storm system is expected to pass through the Bay Area by midday today, with dry weather forecast for the next week. Temperatures are  expected to heat up mid-month and into October, Anderson said.

Social media has been abuzz since Wednesday evening when the angle of the rainfall relative to the sun created the stunning display of colors.

 Anderson said the visual effect of a double rainbow occurs when another patch of rain falls in front of the first arc, creating the appearance of two arcs.

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