Flood Watch: Petersburg Borough; Western Kupreanof and Kuiu Island; Prince of Wales Island; City and Borough of Wrangell

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Flood Watch — Petersburg Borough; Western Kupreanof and Kuiu Island; Prince of Wales Island; City and Borough of Wrangell Severity: Severe. Certainty: Possible. A stronger atmospheric river is expected to move over the panhandle beginning early Thursday morning and continuing through at least Friday morning. Multiple waves moving up will bring persistent moderate to heavy rain for much of the southern half of the panhandle. Past early Friday morning, additional periods of heavy rain are possible, but confidence is moderate to low at this time. Prolonged periods of moderate to heavy rain will produce significant river rises with the potential for at least minor flooding. * WHAT...Flooding caused by excessive rainfall is possible. * WHERE...The following areas, Central Inner Channels, Southern Inner Channels and Southeast Gulf Coast. This includes the cities of Petersburg, Kake, Port Alexander, Craig, Klawock, Hydaburg, Coffman Cove, Thorne Bay, And Wrangell. * WHEN...From Thursday afternoon through Friday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, other low-lying areas and flood-prone locations. Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - Rain totals between early Thursday morning and late Friday morning for the Central Panhandle and Prince of Wales Island area are currently expected around 2 to 3.5 inches, with higher rain totals favoring southern facing mountainsides. Highest rain rates are currently expected during the late morning through evening timeframe on Thursday, where rates could be as high as 0.25 inches per hour.