Pierces Island launch circumnavigate New Castle Sunday April 19th

[Gcosloy]

High tide is approx. noon max minus current in the Piscataqua is also about noon. Circumnavigate clockwise. Drysuits mandatory. Meet at 11AM. Sunday April 19th 6-7 mile get the rust out trip.

Edited April 18, 2015 by GCosloy

[Gcosloy]

High tide is approx. noon max minus current in the Piscataqua is also about noon. Circumnavigate clockwise. Drysuits mandatory. Meet at 11AM. Sunday April 19th 6-7 mile get the rust out trip. Because the current in the Piscat can create some challenges, this trip is L3. Please RSVP here, if no takers trip will be cancelled.

[Dan Foster]

Can you explain the timing of the ebb and flood currents relative to the tidal cycle in Portsmouth, as it relates to this circumnav? The only current predictions I've been able to find are the ones listed below, which don't match up with "max minus current is also about noon" for Sunday the 19th.

http://www.portsmouthnh.com/cam/

Current data for the entrance to Portsmouth Harbor. Tide and current closer to Pierce and New Castle is described as 1/2 hour later than these times.

Sun 01:33am -0.00 knots Slack, Ebb Begins
Sun 04:23am -2.51 knots Max Ebb
Sun 05:54am Sunrise
Sun 06:35am Moonrise
Sun 08:09am 0.01 knots Slack, Flood Begins
Sun 10:16am 1.66 knots Max Flood
Sun 01:58pm -0.00 knots Slack, Ebb Begins
Sun 04:44pm -2.38 knots Max Ebb
Sun 07:29pm Sunset
Sun 08:25pm 0.00 knots Slack, Flood Begins
Sun 08:43pm Moonset
Sun 10:38pm 1.81 knots Max Flood

Tides for Portsmouth, Portsmouth Harbor, New Hampshire

2015-04-19 00:05 EDT 9.96 feet High Tide
2015-04-19 05:55 EDT Sunrise
2015-04-19 06:17 EDT -1.55 feet Low Tide
2015-04-19 06:35 EDT Moonrise
2015-04-19 12:37 EDT 9.40 feet High Tide
2015-04-19 18:35 EDT -0.97 feet Low Tide
2015-04-19 19:30 EDT Sunset
2015-04-19 20:43 EDT Moonset

[Gcosloy]

Hi Dan,

Thanks for spotting this: I went to Kayaking Resources on NSPN home page and selected Piscataqua river currents. I used Henderson Point which is the narrowest spot on the river from Pierces down to Clark Island, which should contain the most current ebb or flood. Problem was this automatically provided data for 2012 which I hadn't noticed. To make matters even worse I was looking at January 2012 not even April. As Emily Latella used to say on SNL news-"Never mind!" In my defense leaving Pierces and entering the river against a flood current one could always eddy hop south which I have done and is doable. This early in the season however I would not want to do this.

Going back to NOAA tides and currents allows you to select the year and so doing I confirm your results. Under the circumstances I would rather not do this trip. Alternative is meet at Frisbee Wharf in Kittery Point and circumnavigate Gerrish/Cutts. Same put in time and current no longer needs to be a consideration.

Edited April 18, 2015 by GCosloy