Alaska Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
423 PM EDT Sun Jun 16 2019
Valid 12Z Thu Jun 20 2019 - 12Z Mon Jun 24 2019
The forecast period begins on Thursday with an upper level low
near the eastern Aleutians and a broad upper level ridge building
in across mainland Alaska and the northern Gulf region. Greater
model differences emerge by the weekend with the GFS indicating an
upper level low over the Gulf of Alaska, whilst the ECMWF has more
of a ridge axis extending northward from the Gulf to northern
Alaska. The forecast becomes much less uncertain by the end of
the forecast period next Monday as shortwave energy west of the
Aleutians begins affecting the synoptic scale pattern over the
state.
A relatively quiet weather pattern is expected to continue going
into next week with no significant events on the horizon and a
quality air place in place. Most locations are expected to remain
dry, with the best chance for any showers to be across the
elevated terrain of southern Alaska. Pleasant temperatures are
expected with highs generally from the upper 60s to lowers 80s
across inland areas, and colder near the coasts. The warmest
conditions are expected towards the end of the forecast period.
Hamrick
Additional 3-7 Day Hazard information can be found on the WPC
medium range hazards chart at:
https://www.wpc.ncep.noaa.gov/threats/threats.php
No significant hazards are expected over Alaska during this
forecast period.
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