Alaska Extended Forecast Discussion NWS Weather Prediction Center College Park MD 602 PM EDT Fri Jul 03 2020 Valid 12Z Tue Jul 07 2020 - 12Z Sat Jul 11 2020 ...Overview and Guidance/Predictability Assessment... Upper troughing initially over northeastern Russia and northwestern Canada Tuesday will focus toward western/southwestern Alaska by the end of next week. A system in the Gulf Tuesday will move southeastward toward the southern Panhandle and Haida Gwaii as a northern stream front pushes out of Southcentral. The 12Z GFS/ECMWF paired fairly well with their ensemble means (with partial support from the UKMET/Canadian) such that a blended solution served well through the period. Ensembles have wavered a bit on system timing especially out of the central North Pacific, but a blended solution should minimize further refinements. Increased ensemble weighting was used to balance the uncertainty by later next week, which should carry a system through the Gulf again toward the southern Panhandle and Hadai Gwaii. ...Weather/Hazard Highlights... Increased troughing will promote cooler than average temperatures over most of the state next week, perhaps by 10-15 degrees in some spots. Extreme northwestern coastal areas may see near to above average temperatures with an offshore/downsloping flow off the Brooks Range. Showers will be favored over the Alaska Range amid daytime heating and cooling mid-level temperatures. Light showers are possible over the western Aleutians midweek as a dying warm front approaches from the south and a cold front approaches from the north. Showers may be enhanced over Southcentral later in the week as the upper trough from the northwest sinks toward the region. Rainfall is not expected to be heavy over a widespread area. Fracasso 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 Hazards: 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