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Hydrologic Outlook

National Weather Service Fairbanks AK

354 PM AKDT Mon May 12 2025



...Koyukuk River breakup status...



The river ice at Hughes lifted on Friday and is thermally degraded

but in-place down to Winthrop Point.  Below Winthrop Point the river

is a mix of degraded in-place ice on bends alternating with open

stretches of water to near the mouth which is open for several miles

upstream of the community of Koyukuk.



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