332
FNAK72 PAFC 151713
FWSALU

Spot Forecast for USCG Adak...USCG
National Weather Service ANCHORAGE AK
913 AM AKDT Tue Sep 15 2026

Forecast is based on forecast start time of 1000 AKDT on September 15.

.DISCUSSION...

There are still no current observations for Adak. Atka is
reporting, but lacking any information on ceilings or visibility,
making Shemya (400 miles away) the closest current observation
with the relevant observations. Therefore, be aware that this
forecast is being made with these limitations.

High pressure over the western Aleutians will move east through
this afternoon. Expect increasing clouds by later this morning as
a frontal system begins to move east toward Shemya and the far
western Aleutians. Even with the increasing clouds, VFR ceilings
and visibility is expected through late this afternoon with
ceilings initially around 8,000 ft this morning falling to around
4,000 ft by late afternoon. Ceilings will likely remain between
3,500 ft and 5,000 ft through late this evening before quickly
lowering to 1,500 and 2,500 ft by midnight AKDT as the front
approaches Adak and rain develops. Ceilings are expected to fall
to between 500 and 1,500 ft from midnight through 8 am AKDT
before rising back to MVFR through noon and VFR for Wednesday
afternoon as any lingering rain showers move east of the area and
diminish. Expect SW winds to increase this morning with sustained
winds 15 to 20 knots and gusts around 25 knots this afternoon
through Wednesday.


.TODAY...

Sky/weather.........Becoming mostly cloudy (80-90 percent) by mid
morning.
Chance of pcpn......Less than 10 percent.
Surface winds (kts).Southwest winds 10 to 17 knots. Gusts to 25 kt
in the afternoon.

TIME (AKDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........77  77  77  92  92  92  75  75
Weather cov.....
Weather type....
Chc of pcpn (%). 0   0   0   0   0   0   0   0
SFC wnd dir.....SW  SW  SW  SW  SW  SW  SW  SW
SFC wnd spd kts.10  10  10  14  14  14  17  17
SFC wnd gst.....14  14  14  18  18  18  23  24

.TONIGHT...

Sky/weather.........Partly to mostly cloudy (55-65 percent) in the
evening, then becoming cloudy (80-90 percent).
Chance of rain in the evening. Rain likely
between 11 pm and 3 am, then chance of rain
after 3 am.
Chance of pcpn......Increasing to 60 percent by 11 pm, then
decreasing to 40 percent after 3 am.
Surface winds (kts).South winds 17 to 21 knots. Gusts to 25 kt.

TIME (AKDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........75  55  58  64  73  73  76  88  90  88  83  81
Weather cov.....                CHC CHC CHC LKY LKY LKY CHC CHC
Weather type....                RN  RN  RN  RN  RN  RN  RN  RN
Chc of pcpn (%).0   10  10  10  30  30  30  60  60  60  40  40
SFC wnd dir.....SW  S   S   S   S   S   S   S   S   S   SW  SW
SFC wnd spd kts.17  19  19  19  21  21  21  21  21  21  20  20
SFC wnd gst.....22  25  25  25  25  25  25  26  26  26  23  23

.WEDNESDAY...

Sky/weather.........Mostly cloudy (70-80 percent) then becoming
                    mostly sunny (40-50 percent). Chance of rain
                    early in the morning, then slight chance of
                    rain in the morning.
Chance of pcpn......40 decreasing to 10 percent by afternoon.
Surface winds (kts).Southwest winds 15 to 20 knots. Gusts to 25
kt.

TIME (AKDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........79  76  74  70  70  70  70  42  42  42  44  44
Weather cov.....CHC SCH SCH SCH SCH SCH SCH
Weather type....RN  RN  RN  RN  RN  RN  RN
Chc of pcpn (%).40  20  20  20  20  20  20  10  10  10  10  10
SFC wnd dir.....SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
SFC wnd spd kts.20  16  16  16  15  15  15  18  18  18  19  19
SFC wnd gst.....23  25  25  25  20  20  20  21  21  21  23  23

$$
Forecaster...Markle
Requested by...MST2 Lorence
Type of request...MARINE
.TAG 2621424.5/ALU
.DELDT 09/15/26
.FormatterVersion 2.0.0
.EMAIL dylan.m.lorence@uscg.mil