


Suppression Forecast
Issued by NWS
Issued by NWS
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794 FNAK72 PAFC 231116 FWSALU Spot Forecast for F/V SPARTAN Aground...United States Coast Guard National Weather Service ANCHORAGE AK 316 AM AKDT Wed Jul 23 2025 Forecast is based on forecast start time of 0315 AKDT on July 23. .DISCUSSION... High pressure south of the Aleutian Chain and low pressure over the Yukon Territory will keep westerly winds and areas of patchy fog over Nushagak Bay through tonight. On Thursday a trough of low pressure will move through the state from the Seward Peninsula to interior Southwest Alaska. This will increase southwesterly winds and generate rainfall by Thursday afternoon. Gusts around 25 kt can be expected tomorrow afternoon and evening as the front moves through. Westerly winds through tomorrow will likely yield a limited sea state due to the protection of Cape Constantine, but waves in the outer bay are likely 1-2 feet through tomorrow morning and up to 3 feet tomorrow afternoon and evening as the winds shift and strengthen. Tides are based off of Clarks Point and may differ slightly at the grounding site. .REST OF TONIGHT... Sky/weather.........Partly cloudy (30-40 percent). Areas of fog after 3 am. Chance of pcpn......10 percent. Min temperature.....Around 51. Max humidity........93 percent. Surface winds (kts).West winds 15 to 18 knots. Wave height.........2 feet. Freezing spray......None. Sea ice coverage....None. Sea surface temp....57 TIDES...............High Tide: 2:27am at 21.86ft TIME (AKDT) 3AM 4AM 5AM Sky (%).........30 42 42 Weather cov.....ARS Weather type....FOG Chc of pcpn (%).10 10 10 Temp............52 52 52 RH..............91 91 92 SFC wnd dir.....W W W SFC wnd spd kts.18 15 15 SFC wnd gst.....22 18 18 Wave height (ft)2 1 1 Freezing spray..None. Sea ice cov (%).None SST (F).........57 .TODAY... Sky/weather.........Mostly sunny (40-50 percent) then becoming mostly cloudy (75-85 percent). Slight chance of rain showers late in the afternoon. Chance of pcpn......20 percent. Max temperature.....Around 55. Min humidity........83 percent. Surface winds (kts).West winds 13 to 19 knots. Wave height.........1 foot. Freezing spray......None. Sea ice coverage....None. Sea surface temp....57 TIDES...............Low Tide: 8:44am at 7.46 ft High Tide: 1:38pm at 17.28 ft TIME (AKDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........42 42 42 42 47 47 47 71 71 71 84 84 Weather cov..... SCH SCH Weather type.... RW RW Chc of pcpn (%).10 10 10 10 10 10 10 10 10 10 20 20 Temp............52 52 52 52 53 54 54 55 55 55 55 55 RH..............92 91 90 88 85 87 84 84 83 84 84 89 SFC wnd dir.....W W W W W W W W W W W W SFC wnd spd kts.15 14 14 14 13 13 13 16 16 16 19 19 SFC wnd gst.....18 17 17 17 16 16 16 19 19 19 23 23 Wave height (ft)1 1 1 1 1 1 1 1 1 1 1 1 Freezing spray..None. Sea ice cov (%).None. SST (F).........57 .TONIGHT... Sky/weather.........Mostly cloudy (80-90 percent). Slight chance of rain showers. Chance of pcpn......20 percent. Min temperature.....Around 53. Max humidity........93 percent. Surface winds (kts).West winds 17 to 19 knots. Wave height.........1 foot. Freezing spray......None. Sea ice coverage....None. Sea surface temp....57 TIDES...............Low Tide: 8:39pm at -2.77 ft High Tide: 3:25am at 22.06 ft TIME (AKDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........84 89 89 89 94 94 94 93 93 93 74 74 Weather cov.....SCH SCH SCH SCH ISO ISO ISO ISO ISO ISO ISO ISO Weather type....RW RW RW RW RW RW RW RW RW RW RW RW Chc of pcpn (%).20 20 20 20 20 20 20 20 20 20 20 20 Temp............55 55 54 54 53 53 53 53 53 53 53 53 RH..............90 89 90 92 92 91 92 92 92 93 91 92 SFC wnd dir.....W W W W W W W W W W W W SFC wnd spd kts.19 19 19 19 19 19 19 18 18 18 17 17 SFC wnd gst.....23 23 23 23 23 23 23 22 22 22 20 20 Wave height (ft)1 1 1 1 1 1 1 1 1 1 1 1 Freezing spray..None. Sea ice cov (%).None. SST (F).........57 $$ Forecaster...Jones Requested by...OS1 Andrew Short Type of request...MARINE .TAG 2518447.0/ALU .DELDT 07/23/25 .FormatterVersion 2.0.0 .EMAIL jrccjuneau@uscg.mil