Lower Kuskokwim Valley storm history

RFC personnel reported Ice Jam flooding along the Kuskokwim River starting in Red Devil from an ice jam near Eightmile. An Ice Jam then formed downstream of Crooked Creek causing flooding in that community. The flooding receded the night of May 12th in both communities.

Thunderstorms developing off the Western Alaska Range in the afternoon on June 17 pushed west over the Lower Kuskokwim Valley, producing numerous lightning strikes. Thunderstorm activity lasted through around 10 pm. A total of 17 new fire starts in the Southwest region were repor…

The Sleetmute AWOS reported 0.04 inches of freezing rain from 3 to 7 am on November 24. A strong upper-level trough tracking northwest across Southwest Alaska produced widespread showers and warmed temperatures aloft above freezing. Prior to this, light showers produced only snow…

Sleetmute, AK Post Office reported 4-6 inches of snow.

Browns Slough river gauge crested at 9.62 ft. on 5/20/23 at 8PM, which was 1.12 ft. above flood stage. Alaska DOT CR reported water over Hangar Lake Road and Alder Street, with portions of the roads closed for safety.

A large ice jam moved down the Kuskokwim River the evening of Friday 5/19, with water flooding the village the night of 5/19 into the morning of 5/20. The river significantly spread across the village causing widespread flooding of home, roads and structures in the village lastin…

Riverwatch crew identified an ice jam which was impounding water below Akiak, AK and rising water had impacts on roadways in the village.

Ice jams on the Kuskokwim River flooded both Upper and Lower Kalskag on the Kuskokwim River. Flooding was reported over numerous roads including the primary road between Upper and Lower Kalskag. Widespread flooding in the villages was reported with water impacting the Kalskag air…

A 15 mile long ice jam moved from Crooked Creek downstream into the area around Napaimute through Birch Crossing which included the areas of Aniak and Chuathbaluk. The ice jam flooded the Napaimute Airport on the evening of May 15. Flooding then impacted the Napaimute airport wit…

An ice jam was reported by the NWS Riverwatch team located 5 miles downstream of Red Devil, AK which caused 12-18 inches of flood depth on the Red Devil Airstrip Runway. 4 feet deep floodwaters were reported in low lying sections of the Village of Red Devil. Most homes were eleva…

Riverwatch reported an ice jam below Crooked Creek, AK causing major flooding to the village. All roads were impassable except by boat, water levels had risen to 12 ft. by the afternoon of 5/13 and 16 ft. By the morning of 5/14 , most builds were inundated with water and roads, i…

Several weather observing sites across the Lower Kuskokwim Valley reported periods of 1/2 mile visibility or less due to moderate/blowing snow. A member of the public reported difficult travel conditions due to blowing snow and reduced visibility in Aniak.

Red Flag Warning conditions were met for T/RH at STNA2/Stoney RAWS 2pm to 8pm 6/30. Winds did not hit technical criteria at this site, but winds across the zone for higher elevation sites were gusting in the 30 to 50 mph range nearly continuously for much of 6/30 afternoon and ov…

Historically dry fuels prompted the issuance of this Red Flag Warning knowing that criteria would all likely not be met. Given high fire activity in the area and large fire spread, this was verified on impacts based criteria in coordination with the IMET. The fire grew up to 3 mi…

Red Flag Warning conditions were technically not met at any location in 152. However. in coordination with AICC- Alaska Interagency Coordination Center, a decision was made to put out the Red Flag Warning given lack of moisture and susceptibility of available fuels. AICC stated t…

Red Flag Warning was in effect for lightning beginning 09/22Z (2pm AKDT). Based on 15-min GLD data, lightning began at 09/20:00Z (noon AKDT). At 09/20:45Z (12:45pm AKDT), 1 cell had 27 strikes in 15 min (equivalent to LAL 5). Lightning activity continued to intensify, peaking aro…

Aniak Tribal Svcs reported 18 inches. Chuathbaluk reported 24 inches over two days.

Sparrevohn reported light freezing rain at 28 to 30 degrees.

Sparrevohn weather station in the Lower Kuskokwim Valley reported light freezing drizzle between 2:50 PM and 4 PM on December 22nd.

PASL had a 24-hr QPF of 0.82 from 12/6 00Z to 12/7 00Z, or about 8 inches of snow using a 10:1 ratio.

This ice jam was caused by some of the thickest ice on the river this winter - some local reports indicated that it was greater than 50 thick (most other reading along the Kuskokwim from last year are around 36). Ice became thicker in this region because of freeze up ice jams, wh…

The catastrophic ice jam which began on 4/30 held through 5/4 at the Kolmakof River. As a result, 16 cabins and several other buildings were destroyed or submerged, and the airport was under with feet of water. Most damage occurred in the vicinity of the Native Village of Napaimu…

The catastrophic ice jam which began on 4/30 held through 5/4 at the Kolmakof River. As a result, 16 cabins and several other buildings were destroyed or submerged, and the airport was under with feet of water. Most damage occurred in the vicinity of the Native Village of Napaimu…

Minor ice jams cause minor flooding at the villages of Sleetmute and Crooked Creek.

In Sleetmute, Jack Egnaty Senior School reported 0.5 inches of ice accumulation.

Chuathbaluk Law Enforcement estimated 0.13 inches of ice accumulation and 1 to 3 inches of snowfall.

As the spring river ice breakup front moved downstream on the Kuskokwim River, an ice jam formed near Birch Crossing, downstream of Aniak. Water levels rose steadily in Aniak and began to flood the low-lying areas of town with up to 6 ft depths of water. The most significantly im…