Official Twitter account for the National Weather Service Alaska-Pacific River Forecast Center. Details: https://xitter.gq/t.co/wRUYVqiivA
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ALT A satellite image of the Kuskokwim River and the area around Bethel, Alaska depicting the VIIRS River Flood product. Areas that are flooded are shown in red and orange, open water on the river is dark blue, and ice over water is in cyan. The image shows significant flooding upstream of Bethel.
ALT Flood Warning in effect for Kenai Peninsula through Monday. A map shows the areas under the Flood Warning, which includes (1) Kenai River from Cooper Landing to Skilak Lake, and (2) Snow River including Primrose Campground and Kenai Lake. In the sidebar: 1) Flooding due to Snow Glacier-Dammed Lake outburst 2) Floodwaters may affect low-lying roads, campgrounds, and houses along Primrose Rd. 3) Monitor local rivers. Use caution when traveling or recreating.
ALT A picture of Snow Glacier-Dammed Lake is shown (taken 9/7/2023 at 8pm by Kellie Okonek). An arrow points to stranded ice above the lake, which shows that the lake was releasing when the photo was taken. What we know: The Snow Glacier-Dammed Lake is currently releasing, with downstream impacts expected along Kenai River and Snow River What we don't know: How much water was in the lake before it started releasing - this will affect forecasts for crest height and timing
ALT Impacts for the Snow River near Seward. A hydrograph shows observed water levels and forecast water levels. Snow River is expected to peak at 14.2 feet (minor flood stage) around Saturday afternoon/evening. At 12.5 feet, the river floods the gravel area just downstream from the railroad bridge. Water starts to flow over Primrose Road. At 13.0 feet, the end of Primrose Road is impassable to small vehicles. Access to residences and campgrounds is impacted. At 14.2 feet, garages along Primrose Road begin to flood.
ALT Impacts for Kenai River at Cooper Landing. A hydrograph shows observed water levels and forecast water levels. Kenai River is expected to peak at 15.64 feet (moderate flood stage) around Sunday morning/afternoon. At 12.5 feet, water starts to flow over Primrose Road. At 13.0 feet, water enters yards along Sterling Highway mile posts 48-50. The wooden walkway at the bottom of the boat ramp begins to be submerged. At 15.0 feet, Quartz Creek Campground boat ramp is submerged and water nears campsites. North Cooper Creek Campgrounds begins to flood. Water approaches foundation level of buildings along Sterling Highway mileposts 48-50.
ALT A bar graph showing rainfall totals for some locations in the SE Brooks Range. Totals ranged from a few hundredths of an inch at Coleen River to 2.20 inches of rain at Coldfoot from the 7th to the 10th
ALT The Koyukuk River flows over the Wiseman Rd. near Wiseman. Photo by B. Hicker.
ALT Side dumper is side dumping a load of rock to shore up the embankment along Dalton Highway and Sag River.
ALT Graphic showing an image of the Dalton Highway washing out and information about a flood warning in effect through 2PM Monday.
ALT Debris line shows the crest of high water at Galena. (photo courtesy K. Bodony)
ALT Flooded building in Fort Yukon
ALT Flooded road in Fort Yukon
ALT Flooded road in Fort Yukon.
ALT Photograph of flooding in Russian Mission
ALT Photograph of flooding in Russian Mission
ALT Photograph of flooding in Russian Mission
ALT Photograph of flooding in Russian Mission
ALT A flood watch for the lower Yukon River and Yukon Delta for ice jam flooding and high water moving down river possible through Thursday.
ALT Flood Watch What to Expect Where: Kobuk River downriver of Kobuk to Ambler, including Shungnak When: Through Tuesday afternoon. What: Flooding caused by an ice jam is possible. Main Concerns Impacts: An ice jam below Kobuk may cause flooding in villages below Kobuk when it releases, as ice downriver of Shungnak appears mostly intact per the latest satellite data. The river has come up an estimated 15 to 20 feet in Shungnak today, with minor flooding in the lowest area of town. Expect increased river levels as breakup progresses. At right: Graphic depicting the areal extent of the Flood Watch with dark green shading.