tidealmanac
Tue, Oct 6

Wednesday, October 7, 2026

Block Island, Tlevak Narrows, AK · NOAA 9450406 · MLLW · Local time (America/Sitka)

Thu, Oct 8

This is a subordinate station: NOAA predicts its highs and lows from a nearby reference station and publishes no curve for it. Nothing is interpolated.

Tides

  1. Low5:06 AM0.3 ft0.11 m
  2. High11:40 AM11.4 ft3.48 m
  3. Low5:36 PM1.8 ft0.56 m
  4. High11:41 PM11.4 ft3.48 m

Range 11.1 ft3.38 m · 4 predicted tides · MLLW

Sun

Civil dawn
6:30 AM
Sunrise
7:06 AM
Solar noon
12:40 PM
Sunset
6:15 PM
Civil dusk
6:51 PM
Daylight
11h 9m

Computed from the station's coordinates (NOAA solar algorithm, ±1 min); not NOAA tide data. Sun calendars: sunupsundown.site.

Moon

Waning crescent15% illuminated · day 25 of the cycle

Between spring and neap: an average tidal range. Approximate phase, computed here.

This week

Sun, Oct 4L 1:47AM 0.8 ft0.24 mH 8:56AM 8.9 ft2.73 mL 1:58PM 5.0 ft1.54 mH 7:57PM 10.6 ft3.23 mMon, Oct 5L 3:08AM 0.8 ft0.23 mH 10:08AM 9.6 ft2.94 mL 3:36PM 4.3 ft1.30 mH 9:28PM 10.6 ft3.24 mTue, Oct 6L 4:14AM 0.5 ft0.16 mH 10:59AM 10.5 ft3.21 mL 4:44PM 3.1 ft0.94 mH 10:42PM 11.0 ft3.36 mWed, Oct 7L 5:06AM 0.3 ft0.11 mH 11:40AM 11.4 ft3.48 mL 5:36PM 1.8 ft0.56 mH 11:41PM 11.4 ft3.48 mThu, Oct 8L 5:49AM 0.4 ft0.11 mH 12:14PM 12.2 ft3.72 mL 6:20PM 0.7 ft0.22 mFri, Oct 9H 12:31AM 11.7 ft3.57 mL 6:28AM 0.6 ft0.18 mH 12:47PM 12.8 ft3.90 mL 7:00PM -0.1 ft-0.04 mSat, Oct 10H 1:16AM 11.8 ft3.59 mL 7:03AM 1.0 ft0.32 mH 1:17PM 13.2 ft4.01 mL 7:38PM -0.7 ft-0.20 m