239
FNAK77 PAJK 190419
FWSAJK

Spot Forecast for South Pennock Island...USCG
National Weather Service Juneau AK
819 PM AKDT Fri Jul 18 2025

Forecast is based on forecast start time of 2100 AKDT on July 18.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office at (907) 790-6824, if you have questions
or concerns with this forecast.

.DISCUSSION...Light northwest winds to continue in near Southern
Clarence Strait due surface ridge holding in place over the central
gulf of Alaska.  Partly to mostly cloudy skies, anticipate winds
picking up daylight hours Saturday as daytime wind speeds increase
to around 10 to 13 kt.

.REST OF TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent).
Chance of pcpn......0 percent.
Min temperature.....Around 56.
Max humidity........88 percent.
Surface winds (kts).Northwest winds 5 to 6 knots late in the
                    evening becoming light.
Swell height........North swell 0 feet.
Wave height.........1 foot.
Sea surface temp....0 Degrees Fahrenheit.
Rainfall amount.....0.00 inches.

TIME (AKDT)      9 PM      MIDNGT    3 AM
Sky (%).........37        41        36
Weather cov.....
Weather type....NONE      NONE      NONE
Tstm cov........
Chc of pcpn (%).0         0         0
Temp............61        58        57
RH..............77        84        87
SFC wind (kts)..NW 5G8    NW 6G10   NW 3G4
Swell hgt (ft)..N 0       N 0       N 0
Wave height (ft)1         1         1
SST (F).........0         0         0

.SATURDAY...

Sky/weather.........Partly sunny (50-60 percent).
Chance of pcpn......0 percent.
Max temperature.....Around 65.
Min humidity........71 percent.
Surface winds (kts).Northwest winds around 4 knots increasing to
                    west around 6 knots in the afternoon.
Swell height........North swell 0 feet.
Wave height.........2 feet.
Sea surface temp....0 Degrees Fahrenheit.
Rainfall amount.....0.00 inches.

TIME (AKDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........43        43        62        60
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Chc of pcpn (%).0         0         0         0
Temp............57        61        62        64
RH..............88        81        76        73
SFC wind (kts)..NW 3G4    NW 3G5    NW 4G7    NW 6G10
Swell hgt (ft)..N 0       N 0       N 0       N 0
Wave height (ft)1         1         1         2
SST (F).........0         0         0         0

$$
Forecaster...Bezenek
Requested by...PO
Type of request...MARINE
.TAG 2518254.0/AJK
.DELDT 07/18/25
.FormatterVersion 2.0.0
.EMAIL sccSoutheastAlaska@uscg.mil