Alaska Extended Forecast Discussion NWS Weather Prediction Center College Park MD 750 PM EDT Sat Apr 24 2021 Valid 12Z Wed Apr 28 2021 - 12Z Sun May 2 2021 ...Model Guidance/Uncertainty Assessment... The latest model guidance showed fairly good agreement and predictability for the beginning of the forecast period. The main difference noted in the guidance was the latitudinal placement of the upper low near the Aleutians/northern Gulf region towards next weekend. The CMC takes the low farther north across the Bering Sea, whereas the GFS is much more suppressed with the storm system across the Gulf. The WPC blend leaned toward the better clustered 12Z ECMWF/CMC/EC mean for the Friday through Sunday time period. ...Weather/Hazards Highlights... The majority of the state should remain dry through most of the forecast period, with perhaps some isolated showers across portions of the Interior. The exception will be from the Alaska Peninsula to the southeast Panhandle region, where low pressure lifting northward across the Gulf of Alaska is expected to advect higher moisture into the area. With better forcing and dynamics, widespread precipitation is likely. No significant temperature anomalies are forecast during this 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 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