Alaska Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
303 PM EST Mon Nov 19 2018

Valid 12Z Fri Nov 23 2018 - 12Z Tue Nov 27 2018

A couple of Aleutian lows will appear to be the dominant synoptic
features affecting Alaska during the medium range period through
next Tuesday.  A blend of the 00Z EC mean with the 00Z NAEFS
provides a good starting point for the WPC Alaska grid fields,
which show good continuity from yesterday's package.  Some
deterministic 00Z ECMWF and 12Z GFS solutions are incorporated as
well.  A weakening occluded low approaching the Aleutian Islands
on Friday should dissipate quickly, giving way to another occluded
low arriving on Sunday.  This cyclone appears to be more energetic
than its predecessor and is forecast to split into two centers as
it approaches southwestern Alaska early next week.  Expect stormy
conditions to prevail from the Aleutian into southwest Alaska
through the Thanksgiving weekend into early next week.  Meanwhile,
interior Alaska should remain dry through the medium range period.

Kong


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

http://www.wpc.ncep.noaa.gov/alaska/ak_5dayfcst500_wbg.gif
http://www.wpc.ncep.noaa.gov/alaska/akmedr.shtml
http://www.wpc.ncep.noaa.gov/alaska/ak_5km_gridsbody.html