In the Interior, including most of the Yukon and Koyukuk River
basins breakup potential is above average due to higher-than-normal snowpack levels. In contrast, portions of the Lower Yukon and Kuskokwim River basins can expect a
below-average breakup potential due to very low snowpack caused by warmer than normal winter temperatures.
Timing of breakup is expected to be near normal for rivers across northern and eastern Alaska, and 1-3 days later than normal in western Alaska. We are still two weeks away from the start of breakup on the mainstem of the Yukon and Kuskokwim Rivers
The Kuskokwim River basin snowpack is well below-average, particularly in the lower basin— a stark contrast to last season’s well above-average snowpack. Areas near McGrath and to the northeast have a deeper snowpack and closer to normal for this time of year
In terms of flood risk, Anviks is low moderate with a forecast break up date of may 13th to 19th. everyone else in the KSKO immediate listenign area along the lower yukon upper kuskokwim region have a low risk of flooding. nikolai's forecast break up date is april 22nd to 28th, mcgraths is may 3rd to 9th, sleetmute is april 30th to may 6th, crooked creek is may 3rd to 9th.
A link to the full break up report is here
https://www.weather.gov/media/aprfc/BreakupProducts/ESFAK_ACR_20250418.pdf
Responses
Thank you for using McGrathAlaska.net's Community Message Board!