Weather Warnings for Alaska

Issued by the National Weather Service

Current watches, warnings, and advisories for Alaska
Alerts Updated: June 17, 2026, 9:32 am  UTC


Flood Watch issued June 16 at 3:57PM AKDT until June 17 at 10:00AM AKDT by NWS Fairbanks AK

Summary: * WHAT...Flooding caused by rain and snowmelt continues to be possible. * WHERE...Dalton Highway, Sag, Colville, Kuparuk Rivers and their tributaries. * WHEN...Through Thursday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Access to roads, airstrips, and low-lying infrastructure may be affected. High flows could lead to bank erosion that could threaten nearby roads. Blocked culverts could lead to road washouts. * ADDITIONAL DETAILS... - High water is being seen at several stream gages on the North Slope after the warm weekend temperatures followed by rain on residual snow. Rain will be tapering off into Tuesday evening and water levels in headwater streams are already dropping. Locations lower on rivers can expect to see high water through Wednesday and into Thursday. - Http://www.weather.gov/aprfc
Severity:  Severe    Effective:  June 16, 2026, 3:57 pm      Expires:  June 17, 2026, 10:00 am
Area:  Central Beaufort Sea Coast; Eastern Beaufort Sea Coast; Western Arctic Plains; Howard Pass and the Delong Mountains; Central Arctic Plains; Central Brooks Range; Romanzof Mountains


Flood Watch issued June 16 at 3:57PM AKDT until June 17 at 12:00PM AKDT by NWS Fairbanks AK

Summary: * WHAT...Flooding caused by rain and snowmelt continues to be possible. * WHERE...Including the following areas, South Slopes of The Central Brooks Range and Upper Koyukuk Valley. This includes the cities of Wiseman, Coldfoot, Chandalar Dot Camp, Iniakuk Lake, The Dalton Highway From Mp 165 To Mp 232, Allakaket, Bettles, Evansville, and Alatna. * WHEN...Through Thursday morning. * IMPACTS...This rain on snow event will result in high water level and potential flooding of low lying areas. * ADDITIONAL DETAILS... - Water levels have already crested at the Middle Fork Koyukuk and Slate Creek gages along the Dalton Highway corridor while the South Fork Koyukuk is nearing its crest. This high water is making its way downstream towards Bettles/Evansville and Allakaket along the Koyukuk River. - Http://www.weather.gov/aprfc
Severity:  Severe    Effective:  June 16, 2026, 3:57 pm      Expires:  June 17, 2026, 12:00 pm
Area:  South Slopes Of The Central Brooks Range; Upper Koyukuk Valley


Flood Advisory issued June 16 at 1:46PM AKDT until June 18 at 1:15PM AKDT by NWS Fairbanks AK

Summary: * WHAT...Flooding caused by rain and snowmelt is expected. * WHERE...Sagavanirktok River along the Dalton Highway, mileposts 310-340. * WHEN...Until Thursday afternoon * IMPACTS...Road washouts are possible on the Dalton, especially in low lying areas adjacent to the Sag River and in vicinity of stream crossings if lingering ice results in culvert blockages. * ADDITIONAL DETAILS... - As of Tuesday morning the Sag River at the USGS gage near Ice Cut was showing water levels approaching bankfull Heavy precipitation preceded by warm temperatures have resulted in heavy run off due to combined snowmelt and rainfall. Rain is tapering off today and water levels are expected to start dropping Tuesday evening at the USGS Sag River gage. - Http://www.weather.gov/aprfc
Severity:  Minor    Effective:  June 16, 2026, 1:46 pm      Expires:  June 18, 2026, 1:15 pm
Area:  Central Arctic Plains; Central Brooks Range


Flood Advisory issued June 16 at 8:58AM AKDT until June 19 at 8:45AM AKDT by NWS Fairbanks AK

Summary: * WHAT...Flooding caused by rain and snowmelt is expected. * WHERE...Colville River from Umiat to Nuiqsut. * WHEN...Until Friday morning. * IMPACTS...Minor flooding in low-lying areas due to rapid temperature rises and continuing rain on residual snowpack. * ADDITIONAL DETAILS... - As of Tuesday morning rain and snowmelt are causing minor flooding along the Colville River. Between 1 and 1.5 inches of rain have fallen through Tuesday morning. This rain event was preceded over the weekend by very warm temperatures and has rapidly melted the snowpack remaining in the Brooks Range. Rain is expected to end Tuesday afternoon. The flood crest should attenuate as it progresses downstream, but water levels are already high in Umiat and minor flooding should be expected elsewhere. - Http://www.weather.gov/aprfc
Severity:  Minor    Effective:  June 16, 2026, 8:58 am      Expires:  June 19, 2026, 8:45 am
Area:  Central Beaufort Sea Coast; Western Arctic Plains; Central Arctic Plains