Spot Forecast
Issued by NWS Juneau, AK

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Spot Forecast for PortageBay...Coast Guard
National Weather Service Juneau AK
221 PM AKDT Sun May 11 2025

Forecast is based on forecast start time of 1800 AKDT on May 11.
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...Quiet weather for tonight into Monday expected as surface
ridging in the gulf brings offshore flow across the panhandle. Next
weather front is expected for Monday night in the form of a weak front
moving in from the West. Significant winds or precipitation are not
expected out of this front, though winds will switch from a north or
northwest direction to a southerly direction by Monday night.

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
Chance of pcpn......10 percent.
Min temperature.....Around 41.
Surface winds (kts).Northwest winds 5 to 9 knots.
Wave height.........2 feet.
Sea surface temp....46 Degrees Fahrenheit.

TIME (AKDT)      6 PM      9 PM      MIDNGT    3 AM
Sky (%).........26        8         3         4
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Chc of pcpn (%).10        0         0         0
Temp............53        48        46        44
SFC wind (kts)..NW 8G15   NW 9G16   NW 9G16   NW 5G10
Wave height (ft)2         2         1         1
SST (F).........46        46        46        46

.MONDAY...

Sky/weather.........Sunny (15-25 percent) then becoming mostly
                    cloudy (75-85 percent).
Chance of pcpn......0 percent.
Max temperature.....Around 56.
Surface winds (kts).Northwest winds 5 to 8 knots.
Wave height.........1 foot.
Sea surface temp....46 Degrees Fahrenheit.

TIME (AKDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........7         36        34        78
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Chc of pcpn (%).0         0         0         0
Temp............44        49        53        54
SFC wind (kts)..NW 8G15   NW 6G12   NW 6G12   NW 7G14
Wave height (ft)1         1         1         1
SST (F).........46        46        46        46

.MONDAY NIGHT...

Sky/weather.........Mostly cloudy (80-90 percent). Slight chance of
                    rain early in the evening. Chance of rain late
                    in the evening, then rain likely overnight.
Chance of pcpn......60 percent.
Min temperature.....Around 42.
Surface winds (kts).Northwest winds 5 to 6 knots shifting to the
                    south around 4 knots late in the evening, then
                    increasing to 5 to 6 knots overnight.
Wave height.........1 foot.
Sea surface temp....46 Degrees Fahrenheit.

TIME (AKDT)      6 PM      9 PM      MIDNGT    3 AM
Sky (%).........83        88        89        90
Weather cov.....          S CHC     CHANCE    LIKELY
Weather type....NONE      RAIN      RAIN      RAIN
Tstm cov........
Chc of pcpn (%).0         20        30        60
Temp............52        47        46        45
SFC wind (kts)..NW 5G10   NW 6G13   S 4G8     S 6G12
Wave height (ft)1         1         1         1
SST (F).........46        46        46        46

.TUESDAY...

Sky/weather.........Mostly cloudy (75-85 percent). Rain likely in
                    the morning and early afternoon, then chance of
                    rain late in the afternoon.
Chance of pcpn......60 percent.
Max temperature.....Around 51.
Surface winds (kts).Southwest winds around 5 knots shifting to the
                    west 7 to 9 knots in the late morning and
                    afternoon.
Wave height.........2 feet.
Sea surface temp....46 Degrees Fahrenheit.

TIME (AKDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........90        86        77        74
Weather cov.....LIKELY    LIKELY    LIKELY    LIKELY
Weather type....RAIN      RAIN      RAIN      RAIN
Tstm cov........
Chc of pcpn (%).60        60        60        60
Temp............44        45        48        50
SFC wind (kts)..S 5G10    SW 5G10   W 7G14    W 8G16
Wave height (ft)1         1         1         2
SST (F).........46        46        46        46

$$
Forecaster...Liske
Requested by...Sector SE USCG
Type of request...SAR
.TAG 2513593.4/AJK
.DELDT 05/11/25
.FormatterVersion 2.0.0
.EMAIL sccSoutheastAlaska@uscg.mil