Alaska Extended Forecast Discussion NWS Weather Prediction Center College Park MD 351 PM EDT Fri Jun 14 2019 Valid 12Z Tue Jun 18 2019 - 12Z Sat Jun 22 2019 The forecast period begins on Tuesday with a broad upper low over the Gulf of Alaska and an upper level ridge extending northward across the western Aleutians and the Bering Sea. The model consensus is for the upper low to track inland across the southeast Panhandle and then northern British Columbia by Wednesday. Greater model differences exist with a second upper level low developing near the southwest Alaska mainland and its evolution towards the end of the week, with the CMC and GFS better defined and farther north, and the ECMWF weaker and farther south. This will have an effect on the next storm system to develop over the Gulf region. The forecast becomes quite uncertain by the end of the forecast period next Saturday 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. There will be an increased chance of showers and high elevation snow for southeast Alaska through Wednesday in association with the upper low moving inland, and generally drier conditions farther to the north and west. 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