As California agencies brace for possible summer floods, officials are warning visitors of Northern waterways to take precaution as record-breaking snow packs built up from winter storms continue to liquify. Both Lake Oroville and Lake Shasta reported near-full capacity Monday. Shasta Reservoir, the state’s largest man-made lake located on the upper Sacramento River near the city of Redding, is now higher than it has been in years.  As of May 15, Lake Shasta is 98% full and just a few feet shy of its 2019 high, according to the Bureau of Reclamation. Water levels have risen nearly 150 feet since the start of 2023.