Sea Lion Pass, Rat Islands, Alaska Current 51.9000° N, 177.9000° E Flood direction 12° true Ebb direction 195° true Note: Current is somewhat rotary turning clockwise. At times given for slack, flood begins and slack, ebb begins the current probably flows WNW and ESE respectively, with speed of about 1.5 knots. Reference is in time zone :America/Anchorage; adjusted offsets 1 hr to undo LST compensation. 2025-10-04 3:16 PM HDT 2.50 knots Max Flood 2025-10-04 6:40 PM HDT -0.00 knots Slack, Ebb Begins 2025-10-04 9:19 PM HDT -1.49 knots Max Ebb 2025-10-05 12:09 AM HDT 0.00 knots Slack, Flood Begins 2025-10-05 3:10 AM HDT 2.33 knots Max Flood 2025-10-05 6:14 AM HDT -0.01 knots Slack, Ebb Begins 2025-10-05 9:25 AM HDT -2.41 knots Max Ebb 2025-10-05 12:45 PM HDT 0.00 knots Slack, Flood Begins 2025-10-05 3:43 PM HDT 2.68 knots Max Flood 2025-10-05 6:49 PM HDT -0.01 knots Slack, Ebb Begins 2025-10-05 9:50 PM HDT -2.41 knots Max Ebb 2025-10-06 1:04 AM HDT 0.00 knots Slack, Flood Begins 2025-10-06 4:07 AM HDT 2.92 knots Max Flood 2025-10-06 7:19 AM HDT -0.00 knots Slack, Ebb Begins 2025-10-06 10:10 AM HDT -2.23 knots Max Ebb 2025-10-06 1:19 PM HDT 0.00 knots Slack, Flood Begins 2025-10-06 4:13 PM HDT 2.82 knots Max Flood 2025-10-06 7:04 PM HDT -0.00 knots Slack, Ebb Begins 2025-10-06 10:24 PM HDT -3.32 knots Max Ebb 2025-10-07 1:55 AM HDT 0.00 knots Slack, Flood Begins 2025-10-07 5:00 AM HDT 3.43 knots Max Flood 2025-10-07 8:22 AM HDT -0.01 knots Slack, Ebb Begins 2025-10-07 10:55 AM HDT -1.92 knots Max Ebb 2025-10-07 1:50 PM HDT 0.01 knots Slack, Flood Begins 2025-10-07 4:46 PM HDT 2.93 knots Max Flood 2025-10-07 7:25 PM HDT -0.00 knots Slack, Ebb Begins 2025-10-07 11:00 PM HDT -4.12 knots Max Ebb 2025-10-08 2:45 AM HDT 0.00 knots Slack, Flood Begins 2025-10-08 5:50 AM HDT 3.77 knots Max Flood 2025-10-08 9:24 AM HDT -0.00 knots Slack, Ebb Begins 2025-10-08 11:38 AM HDT -1.50 knots Max Ebb
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| Name | Sea Lion Pass, Rat Islands, Alaska Current |
| In file | /usr/share/xtide/harmonics-dwf-free.tcd |
| Date imported | 2009-12-24 |
| Coordinates | 51.9000° N, 177.9000° E |
| Country | U.S.A. |
| Time zone | :America/Adak |
| Native units | knots |
| Flood direction | 12° true |
| Ebb direction | 195° true |
| Source | http://tidesandcurrents.noaa.gov/ |
| Restriction | Public domain |
| Comments | Data from web snapshot taken 2009-12-22 |
| Notes | Current is somewhat rotary turning clockwise. At times given for slack, flood begins and slack, ebb begins the current probably flows WNW and ESE respectively, with speed of about 1.5 knots. Reference is in time zone :America/Anchorage; adjusted offsets 1 hr to undo LST compensation. |
| Credit | Processed by David Flater for XTide http://www.flaterco.com/xtide/ |
| Original name | Sea Lion Pass, Rat Islands |
| State | AK |
| Type | Subordinate station, current |
| Reference | Unimak Pass (off Scotch Cap), Alaska Current |
| Min time add | +0:37 |
| Min level add | NULL |
| Min level mult | 0.800 |
| Max time add | +0:59 |
| Max level add | NULL |
| Max level mult | 0.700 |
| Flood begins | +1:06 |
| Ebb begins | +0:26 |
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. The author assumes no liability for damages arising from use of these predictions. They are not certified to be correct, and they do not incorporate the effects of tropical storms, El Niño, seismic events, subsidence, uplift, or changes in global sea level.
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