Alaska Extended Forecast Discussion NWS Weather Prediction Center College Park MD 515 PM EDT Wed Jun 12 2024 Valid 12Z Sun Jun 16 2024 - 12Z Thu Jun 20 2024 ...Overview, Guidance Evaluation, & Preferences... An Omega Block slowly flattens over time, keeping the main cyclone track south of the Aleutians/AK. A cold low takes up real estate near northwest AK. This allows a front to cross portions of western and northern AK. The guidance showed more dispersion today, with the 12z UKMET especially aggressive to remove the AK ridge by taking the cold low bodily through the state. Much of the guidance is closer to the 00z ECMWF and 12z NAEFS means and maintained somewhat more ridging across AK, though trends are not on their side. The pressures, winds, and QPF were a blend of the 12z deterministic guidance (with 12z UKMET dropping out earlier than usual) with increasing amounts of the 00z ECMWF and 12z NAEFS means with time. The remainder of the grids heavily relied upon the 19z NBM. ...Weather/Hazards Highlights... Winds to 30 knots/35 mph at times across the Aleutians, AK Peninsula, and North Slope. Precipitation chances slowly gain real estate across AK as ridging aloft slowly erodes; precipitation amounts are expected to be modest. High temperatures are forecast to range from the upper 30Fs in the North Slope, 40Fs in the Aleutians, the 50Fs along the southern coast, and the 70Fs/near 80F across the interior. Low temperatures are expected to dip below freezing across the North Slope and the higher terrain of south-central and southeast AK. 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