A strong low pressure center tracked north through the Bering Sea across St. Lawrence Island, the Bering Strait, and into the Chukchi Sea between Aug 2-4th, 2019. This was the strongest in a series of weather systems associated with an atmospheric river which developed over the Bering Sea from late July and into August. This early fall storm resulted in coastal flooding, high surf, erosion, and riverine flooding due to heavy rainfall. Impacts included minor flooding of homes, seasonal subsistence camps damaged, road washouts, and coastal lagoons flooded.

Coastal Flood in ERN NORTON SOUND NULATO HILLS, ALASKA
From 02-AUG-19 22:00:00 to 03-AUG-19 22:00:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Local Official

Storm surge ranged from 6 to 10 feet above the normal high tide line in eastern Norton Sound. The high surge combined with southwest winds 30 to 45 mph resulted in high surf and significant wave runup. In Shaktoolik, water surrounded the village, much of the normally dry tundra was inundated, but erosion of the evacuation route out of town was the biggest impact. In Unalakleet, water was up to the AC store, the Fish processing plant, around the village and the airport was surrounded by water. In Stebbins, minor flooding was observed and a few homes were surrounded by water. Lastly, in St. Michael minor flooding of the old shipyard and erosion were the biggest impacts.

High Surf in CHUKCHI SEA COAST, ALASKA
From 03-AUG-19 06:00:00 to 04-AUG-19 06:00:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Local Official

Storm surge ranged from 3 to 5 feet above the normal high tide line along the Chukchi Sea coast. The high surge combined with southwest to west winds 30 to 45 mph resulted in high surf and significant wave runup. The storm caused major erosion to the sanitation road that leads to Shishmaref���s landfill. A lot of earth, rock, rip rap, cement blocks, and boulders were dislodged from the shoreline and the road structure. In addition, some subsistence fish racks were damaged by the wind and waves.

Coastal Flood in YUKON DELTA, ALASKA
From 02-AUG-19 22:00:00 to 03-AUG-19 22:00:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Local Official

Storm surge ranged from 4 to 8 feet above the normal high tide line in southern Norton Sound and the Yukon River Delta. The high surge combined with southwest winds 30 to 40 mph resulted in high surf and significant wave runup. In Kotlik, Flooding reached some homes and structures and water got into the floor insulation in homes in low lying areas. There was also damage to some boardwalks and some residents lost fishing gear and other personal items. The warnings helped people to prepare and move property, such as snow machines, four wheelers, and fish nets, to higher ground or indoors.

Coastal Flood in SRN SEWARD PENINSULA COAST, ALASKA
From 02-AUG-19 10:00:00 to 03-AUG-19 18:00:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Local Official

Storm surge ranged from 6 to 8 feet above the normal high tide line along the southern Seward Peninsula coast. The high surge combined with southwest winds 30 to 45 mph resulted in high surf and significant wave runup. In Nome, water inundated low lying areas near the coast and high surf caused minor erosion along the Nome-Council road. In Golovin, water completely flooded the old runway, the barge landing and there was significant erosion. The community constructed a temporary berm which helped to hold water back from entering town. Many smaller creeks were overbank due to heavy rain. Some fishnets and a boat were lost.

Coastal Flood in BALDWIN PEN. & SELAWIK VALLEY, ALASKA
From 03-AUG-19 00:00:00 to 04-AUG-19 00:00:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Storm surge ranged from 3 to 5 feet above the normal high tide line in Kotzebue Sound. The high surge combined with west winds 30 to 45 mph resulted in high surf and significant wave runup. Minor flooding was reported in low lying areas in Kotzebue and around the lagoon. Water was up to the teacher housing.