Alaska Extended Forecast Discussion NWS Weather Prediction Center College Park MD 354 PM EDT Thu Apr 04 2019 Valid 12Z Mon Apr 08 2019 - 12Z Fri Apr 12 2019 Multiple upper lows over/near the mainland Monday will give way to a more robust system in the Bering Sea next Wed-Thu with strong winds and locally heavy rain. Ensembles were in very good agreement overall with expected detail differences as evidenced by the deterministic models. A blend of the 12Z/06Z GFS with the 00Z ECMWF offered details to the GEFS/ECMWF ensemble means through the period. Lead system next Mon/Tue will move eastward into/through the Gulf but dive southeastward as ridging pushes northwestward out of Canada toward the North Slope, helping to raise temperatures across the interior as winds veer from NE or ENE to E or ESE. Continued to show a deep low crossing the Aleutians late Tue into early Wed with a central pressure likely near 960mb (some models were in the 950s, others in the 960s) per the latest ensemble spread. Parent low will linger over the open water while the front will continue into the Gulf with the triple point emerging/redeveloping near Kodiak. Precipitation will spread eastward through Southcentral but focused along the coast. Fracasso Bullet points from the WPC Days 3-7 Hazards chart can be found at: https://www.wpc.ncep.noaa.gov/threats/threats.php Hazards - Heavy precipitation across portions of mainland Alaska and the Aleutians, Wed-Thu, Apr 10-Apr 11. - High winds across portions of mainland Alaska and the Aleutians, Wed-Thu, Apr 10-Apr 11. 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