Alaska Extended Forecast Discussion NWS Weather Prediction Center College Park MD 437 PM EST Sun Jan 05 2020 Valid 12Z Thu Jan 09 2020 - 12Z Mon Jan 13 2020 ...Weather/Hazards Highlights... Heights rises over the North Slope/Interior will end the current cold snap. A main weather focus will shift to the Aleutians and Bering Sea as a series of deep lows with a substantial threat of high winds/waves and heavy precipitation feed into the region all week, with lead weather working with some vigor into the western/southwestern mainland next weekend. Energetic lead triple point low developments will meanwhile work downstream across an unsettled Gulf of Alaska Thu/Fri then again in about a week that would threaten maritime interests and onshore into the southern/southeastern Alaskan tier. ...Guidance/Predictability Assessment... The 12 UTC GFS/ECMWF and GEFS/NAEFS/ECMWF ensemble forecasts are better clustered than normal through about the next week, bolstering forecast confidence. Prefer a composite blend along with the 19 UTC National Blend of Models to maintain good WPC continuity. Manual adjustments were applied to trend to deeper Aleutian/Bering Sea low developments with an increased maritime and coastal threat considering favorable support aloft and trend of decreasing uncertainty. Schichtel Additional 3-7 Day Hazard information can be found on the WPC medium range hazards chart at: https://www.wpc.ncep.noaa.gov/threats/threats.php WPC medium range Alaskan products including 500mb, surface fronts/pressures progs and sensible weather grids can also be found at: https://www.wpc.ncep.noaa.gov/alaska/ak_5dayfcst500_wbg.gif https://www.wpc.ncep.noaa.gov/alaska/akmedr.shtml https://www.wpc.ncep.noaa.gov/alaska/ak_5km_gridsbody.html