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early ice overcast/snowy am. low pressure. if its a high pressure day you might as well pack your bags. of course you may catch the occasional fish but nothing worth waking up early for! the wind plays a big factor too. just remember west is the best!
Must be you guys fishing lakes without pelagic forage. For the lakes I fish (smelt,shad based) high pressure days are definitely not worth waking up early for - They bite all day. Every single big number lake trout day last year was during a high pressure system...go figure