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Alaska Extended Forecast Discussion
(Latest Discussion - Issued 1953Z Apr 24, 2019)
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Abbreviations and acronyms used in this product
View Alaska Map

Alaska Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
353 PM EDT Wed Apr 24 2019

Valid 12Z Sun Apr 28 2019 - 12Z Thu May 02 2019

Amplified pattern will hold in place during the medium range but
its shape/orientation remains less certain. Regardless, main storm
track will be kept through the western/central Bering Sea but some
moisture will creep into western areas and also into southwestern
Alaska and Southcentral via a system to the south of the Aleutians
that will stay offshore. Models/ensembles show reasonable
agreement overall and a blend of the 12Z GFS with the 00Z ECMWF
and their ensemble means offered a good starting point to the
forecast which favored stronger ridging through next week. Ridge
may take on a skinny/tall shape next week that would allow height
falls over NW Canada to possibly sneak into southeastern
Alaska/Panhandle with some cooler temperatures on easterly flow,
per the forecast. Temperatures should increase steadily to
generally near/above average values for most areas, perhaps the
warmest of the season [e.g. >54 (Anchorage), >52 (McGrath), and
>56 (Fairbanks)] with low 60s possible in the warmer valley areas
of Southcentral.


Bullet points from the WPC Days 3-7 Hazards chart can be found at:

- High winds across portions of the Aleutians, Mon, Apr 29.

WPC medium range Alaskan products including 500mb, surface
fronts/pressures progs and sensible weather grids can also be
found at: