Port Protection, Alaska

A stronger atmospheric river continues to move over the panhandle Thursday evening, lasting through Friday morning. Multiple waves moving up will bring persistent moderate to heavy rain for much of the southern half of the panhandle, with the heaviest rain expected through Thursday night. Elevated gusty winds are expected alongside this heavier rainfall, with the strongest winds expected Thursday night. Prolonged periods of moderate to heavy rain will produce significant river rises with the potential for at least minor flooding. Gusty winds alongside the long duration heavy rainfall will bring a possibility of isolated landslides. * WHAT...Flooding caused by excessive rainfall continues to be 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...Through Friday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, other low-lying areas and flood-prone locations. Street flooding and flooding of creeks and rivers are possible. Isolated landslides are possible in areas of steep terrain. * ADDITIONAL DETAILS... - Rain totals between early Thursday morning and late Friday morning for the Central Panhandle and Prince of Wales Island area are still expected to be around 2 to 3.5 inches, with higher rain totals favoring southern facing mountain sides. Highest rain rates are currently expected through Thursday night, where rates could be as high as 0.3 inches per hour. We will continue to see winds of of 20 to 30 mph with gusts to 40 mph on Thursday, with potential for up to 45 mph wind gusts through Thursday night. With the multiple rounds of moderate to heavy rainfall and the elevated winds, there is possibility for isolated landslides along steep mountain slopes. Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. The ongoing rains could swamp boats. Mariners should check their vessels immediately. All residents on or near mountain slopes should be prepared for possible landslides.