Alaska Extended Forecast Discussion NWS Weather Prediction Center College Park MD 359 PM EDT Tue Oct 15 2019 Valid 12Z Sat Oct 19 2019 - 12Z Wed Oct 23 2019 ...Weather/Hazards Highlights and Guidance/Predictability Assessment... Model guidance this morning shows fairly good agreement on the synoptic pattern affecting Alaska through the medium-range. The remnants of Hagibis will continue to gradually decay as it meanders over the Bering Sea into early next week. Precipitation should be light and scattered in nature, and be confined along the southern periphery of mainland Alaska. The highest chance of rain is expected for the Alaska Panhandle on Sunday when a fast-moving low pressure system is forecast to arrive. Meanwhile, scattered showers associated with the decaying Bering Sea low is forecast to rotate across the Aluetians through the weekend into Monday. By next Wednesday, a low pressure wave may deepen into a more substantial cyclone and approach the eastern Aleutians from the south. The WPC grids for Alaska were derived mainly from the consensus of the 00Z ECMWF, 00Z EC mean, 06/12Z GFS, and the 06Z GEFS, with increasing weights toward the ensemble means for Days 7 and 8. Some 00Z NAEFS was used for these days as well. Kong 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 No significant hazards are expected over Alaska during this forecast period. 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