Alaska Extended Forecast Discussion NWS Weather Prediction Center College Park MD 243 PM EDT Sat Jun 15 2019 Valid 12Z Wed Jun 19 2019 - 12Z Sun Jun 23 2019 The forecast period begins on Wednesday with an upper level trough passing over the Arctic Coast and an upper low over western Alaska, followed by a surface low developing over the north Pacific that will likely track towards the Alaska Panhandle region by Friday. Greater model differences exist regarding a potential upper level ridge axis near the Bering Sea, with the ECMWF indicating more of a ridge compared to the GFS, and the ECMWF has greater support from the ensemble means regarding the upper level pattern. The forecast becomes quite uncertain by the end of the forecast period next weekend regarding the eventual break-down of the Bering Sea ridge and the overall amplitude of the upper level pattern. A relatively quiet weather pattern is expected to continue going into next week with no significant events on the horizon. There will likely be some showers north of the Brooks Range on Wednesday in association with the Arctic trough passing through the region. Elsewhere, the best potential for any rain will be across the southern third of the state. Pleasant temperatures are expected with highs generally from the mid 60s to upper 70s across inland areas, and colder near the coasts. Hamrick 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