Question on weather, history, and GWX

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Originally Posted by theworldover

Greeting fellow Kaleuns,

At what point on the way to the surface, would a Uboat crew have been aware of the weather on the surface? I’ve noticed in terrible storms in GWX that I give me some movement above 20m but I’d like a more historical perspective. Thanks in advance friends.

Having PM'd a long-term member from my friends list who served on nukes, he responded that on the way to the surface in heavy seas, the motion can be detected at 200 feet...particularly when perpendicular to or abeam the current. It can be masked if the sub is moving fast but readily becomes apparent when slowing for periscope depth. If serious rolling is at or above 150 ft, stowing and tying down loose gear is essential.