VANDENBERG AIR FORCE BASE, Calif. — An approaching storm has delayed the launch of a U.S. defense satellite from California's central coast.

An Atlas V rocket carrying a classified payload for the National Reconnaissance Office was scheduled to lift off Thursday from Vandenberg Air Force Base.

However, the launch was postponed to Friday night because of concerns that the storm might bring rain, heavy clouds, gusty winds and even lightning.

Strong gales and sheets of rain from the storm knocked out electricity, flooded freeways and toppled trees in Northern California earlier Thursday.