CatchWindow fishing intelligence

Atka, AK Daily Water Report — October 4, 2026

Atka’s water verdict is guarded: workable for experienced sailors and divers with a conservative plan, but rough enough to make boating and kayaking poor-value propositions. A west-northwest wind around 16 knots, with gusts well beyond that, is putting a sharp edge on a 1.5–2.3 m sea. The representative wave height is 1.64 m at 7.8 seconds, with shorter 0.86 m wind waves mixed in—enough chop to keep the ride busy even before the gusts have their say. The better timing is late rather than early. Conditions are forecast to ease toward a daily wave minimum near 1.46 m around 11 PM, though darkness and the late high tide at 11:06 PM make that a planning detail, not an invitation to stretch the day. Daylight runs from 8:42 AM to 8:11 PM, with usable twilight beginning around 8:08 AM. Rain is in the forecast throughout, skies are heavily clouded, and air temperatures near 8–10 C will feel closer to 3–4 C in the wind. Marine SST is 9.3 C, so immersion protection and a conservative margin are not optional accessories. Fishing rates a middling 5.9/10. The most favorable solunar major period is 8:42–10:42 AM, with another from 8:42–10:42 PM, but the latter arrives after sunset. The afternoon high at 3:37 PM overlaps the 3:12–4:12 PM minor period, offering a reasonable daylight tide-and-timing overlap, though wind and sea state remain the tax collector. Atmospheric visibility is forecast near 7.5 km; that is not a reading of underwater visibility. Sailing leads the activity scores at 6.9/10, but that reflects usable wind alongside the gust spread and waves—not a safety guarantee. Diving also reaches 6.9/10, improved from yesterday’s reconstructed 5.4, while boating slips to 4.8 and kayaking to 4.4. Compared with October 2’s lighter 8.9-knot wind and stronger boating/kayaking scores, today is plainly more demanding. The next two days look notably calmer on the water, especially Tuesday’s 0.6–0.8 m waves, although rain remains likely; seas build again Wednesday and Thursday. Best bet: wait for Tuesday if you can—today’s water has enough attitude already.