Alaska Extended Forecast Discussion NWS Weather Prediction Center College Park MD 517 PM EDT Thu Jun 06 2024 Valid 12Z Mon Jun 10 2024 - 12Z Fri Jun 14 2024 ...Guidance Evaluation and Preferences... There is good agreement in the 12z guidance today, though the 12z ECMWF still has some detail issues that appear unrealistic. Early on, a blend of the 12z Canadian/ECMWF/GFS/UKMET was used, before inclusion up to 40% of the 12z NAEFS/00z ECMWF ensemble means was employed to deal with the detail issues. Most grids used a 19z NBM starting point, with the most deviation within the wind and QPF grids, to increase magnitude. ...Weather/Hazards Highlights... A deep cyclone near southwest AK and the AK Peninsula should allow for gales out at sea, and possibly coastal locations more prone to wind funneling, with rain generally expected in south-central AK and increasingly across the interior for portions of next week. Pressure gradient in the North Slope could bring coastal winds towards gale force as well. Rainfall is heavy enough in and near southern AK for a hazard to be placed in the outlook. Moderate to occasionally heavy rain shifts into the AK Panhandle by early next week, which could lead to a burst of moderate to heavy rains as an occluded front and increased onshore flow in its wake occur. Interior shower and thunderstorm chances exist due to daytime heating at the periphery of the nearly cold low and shortwaves retrograde around its northern periphery. High temperatures range from the mid to upper 30s along the North Slope, to generally 50s along the southern coast, and wavering mostly in the 70Fs inland. Subfreezing low temperatures appear confined to the North Slope and higher elevations in south-central and southeast AK early to mid next week. Roth Additional 3-7 Day Hazard Information can be found on the WPC medium range hazards outlook 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