slack water time on the Hamble

colhel

colhel

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I've got to move the boat this weekend, probably on my own. Is there a time differential with the tidal stream atlas for Portsmouth? ie slack water in the Solent looks about midday, but the tidal graph for Warsash looks to me as though slack water is from around 14.30-16.30 . Do any Hamble regulars have a quick formula for knowing when slack water is please?
 
colhel said:
I've got to move the boat this weekend, probably on my own. Is there a time differential with the tidal stream atlas for Portsmouth? ie slack water in the Solent looks about midday, but the tidal graph for Warsash looks to me as though slack water is from around 14.30-16.30 . Do any Hamble regulars have a quick formula for knowing when slack water is please?
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While since I sailed there, but I'm sure the primary port was Southampton for the Hamble. Anyway, slack water in the Solent is not at HW, so don't worry about what is going on outside the river.

I recall there were a few places where there were eddies affecting berthing in the marinas, but flows won't be too strong between the two high waters.

Best advice for the Hamble is to look over the side - then look again ten minutes later to see if it has changed.
 
I agree, the Solent and its rivers are known for their their curious four daily tide hydrographic regime. IIRC long periods of slack water at high and to a lesser extent low tide are interspersed by strong flood and ebb tides, especially the ebbs. That's why the Hamble mob are the best ferry gliders in the world ;)

Take a look at this link and expect slack water between those double highs (prob with 20 mins before the first high but poss less after the second -- local racers will know the details of all the eddies) and about the same time surrounding the low. These numbers will of course vary a little depending on the water flow within the river.
http://www.ukho.gov.uk/easytide/EasyTide/ShowPrediction.aspx?PortID=0062&PredictionLength=7
 
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The "stand" in the Hamble is after Soton HW, and lasts for quite a time. At a guess, assume Soton HW+.30 to +1.30 (ish)

Where are you moving it to? I'll be there on Saturday.
 
colhel said:
Mercury to Port Hamble. :o :D Reason for the question, I was just going to drive down, move it and drive home again. It would be good to meet up again if you're about. What about you Dom?
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I would have loved to except the daughter is coming home from university this w/e with a couple of her mates. Still, if you're in Port Hamble over the winter I can see a few winter warmers coming on ;)
 
Col - if Saturday morning I might be able to help you. - edit sorry visiting family in Oxford PM (below)

The river more or less stands still from ~ 30 mins before the first (proper) high water and until ~ 30 mins after the second HW, so around 2 1/2 - 3 hours, when it then plummets out of the river like a plug pulled out of a bath. I would not try to berth on your own at PH on the strong ebb, so aim to be there by the 2nd HW and you will be just fine.

First HW is at 14.24 2nd 16.08, so mostly slack from around 14.00 - 16.30
 
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Thanks Trevor. Bob and Tom (Topcat 47) will be around, so in answer to the question "how many forumites to move a boat 500 feet?", answer: 3 (at least).
I'll bring some ingredients for bacon butties if anyone else wants to come along?
 
colhel said:
Thanks Trevor. Bob and Tom (Topcat 47) will be around, so in answer to the question "how many forumites to move a boat 500 feet?", answer: 3 (at least).
I'll bring some ingredients for bacon butties if anyone else wants to come along?
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+1

I'm bringing down a replacement dehumidifier for my boat (currently ashore at Hamble Point). Old one decided to go phutt. (Dehumidifier that is, not boat). So I'll be around for an hour or so and would love to say "hi". Let me know what time you are around and I will try to time my trip down accordingly.

Be aware that there is a load of work going on at Port Hamble at the mo. Half of one of the car parks is out of bounds while they build a new shower block.

Oh, and it is really only the ebb that is strong. Indeed, if you are berthing on the upstream side of a pontoon (as my berth at Port Hamble is) I actually find a bit of flood tide rather helpful when coming into my berth.
 
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Sorry I didn't make it Col. We had more to do than we thought. Hope you didn't get too wet.
 
... and they really were yummy sausages. And the coffee was good too. Thank you Col. :encouragement:

I'm unlikely to be down there in 30 days, unless my new dehumidifier also goes phutt. :eek:

But, now everyone has heard about your hospitality, I'm sure you'll be inundated with offers to crew for you. :cool:
 
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