* WHAT. Flooding caused by snowmelt is occurring. * WHERE. Sagavanirktok River along the Dalton Highway. * WHEN. Until 400 PM AKDT Friday. * IMPACTS. Flooding of rivers, creeks, streams and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS. - At 138 PM AKDT, high water from rapid snowmelt over the past five days continues to cause erosion and minor flooding along the Sagavanirktok (Sag) River, affecting travel conditions on the Dalton Highway. - Multiple sections of the highway have water near or over the roadway, with a significant washout reported at Milepost (MP) 15. The Dalton Highway remains closed between MP 305 and MP 356. The USGS river gauge at MP 325 has likely reached its peak and is now slowly receding. However, water levels are expected to remain above flood stage through Thursday. - High water will continue to move downstream over the coming days. Infrastructure near the river's mouth, including roads and bridges near the Deadhorse/Prudhoe Bay area is already being impacted. Water levels in this area are expected to gradually rise, particularly around high tide. - Motorists and local authorities are advised to monitor conditions closely and avoid flooded areas. - http://www.weather.gov/aprfc