Alaska Minor Flood Advisory | Effective 09/01/2026 07:20

Rain showers continue to move across the area this evening bringing periods of moderate to heavy rain for the Juneau area. Rainfall amounts around the Mendenhall Valley show around an inch of rain has fallen in the last six hours with another quarter of an inch possible. * WHAT...Flooding caused by excessive rainfall continues. * WHERE...Montana Creek near areas near the low water crossing on Montana Creek Road and near Back Loop Road at the Montana Creek bridge. * WHEN...Until 930 AM AKDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 617 AM AKDT, river gauge reports indicate rises in water levels from heavy rain across the advisory area. Minor flooding is ongoing or expected to begin shortly, especially near Montana Creek. Between 1 and 1.5 inches of rain have fallen. Additional rainfall amounts up to a quarter of an inch is possible. - For Montana Creek at Back Loop Bridge: At 6:00am the stage was 14.5 feet. Flood Stage is 14.5 feet. Forecast: A crest around 14.7 feet is expected around 1:00am Tuesday. A crest around 15.0 feet is expected around 12:00am Tuesday. Water levels will go below minor flood stage around 3am. Impacts: At 14.5 feet: Water begins flowing over the low water crossing on Montana Creek Road. Bankfull conditions at the gauge with water starting to inundate adjacent undeveloped fields along Mendenhall Loop Road.