Alaska Extended Forecast Discussion NWS Weather Prediction Center College Park MD 423 PM EDT Sun Jun 16 2019 Valid 12Z Thu Jun 20 2019 - 12Z Mon Jun 24 2019 The forecast period begins on Thursday with an upper level low near the eastern Aleutians and a broad upper level ridge building in across mainland Alaska and the northern Gulf region. Greater model differences emerge by the weekend with the GFS indicating an upper level low over the Gulf of Alaska, whilst the ECMWF has more of a ridge axis extending northward from the Gulf to northern Alaska. The forecast becomes much less uncertain by the end of the forecast period next Monday as shortwave energy west of the Aleutians begins affecting the synoptic scale pattern over the state. A relatively quiet weather pattern is expected to continue going into next week with no significant events on the horizon and a quality air place in place. Most locations are expected to remain dry, with the best chance for any showers to be across the elevated terrain of southern Alaska. Pleasant temperatures are expected with highs generally from the upper 60s to lowers 80s across inland areas, and colder near the coasts. The warmest conditions are expected towards the end of the forecast period. 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