Thermals an water
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Thermals an water
How small of a spot or big how ever you wanna look at it would it take to push or pull air to create thermals? Got at spot that's 10x20 yards wondering if that could create a decent enough pull to worry abou?
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- purebowhunting
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Re: Thermals an water
10 x 20 yards is plenty big to create thermals, but the temperature difference between the air and water is important into how much effect it will create. I have a similar sized pond, it's stagnant water in average to dry falls and when much warmer than the air you'll notice the pull of the thermals when hunting real close during evening. I generally have hunted real close so not sure exactly how far away you'd notice the pull, but the surrounding ground slopes towards it so a dropping thermal I expect will be present along the entire slope. I'm putting a food plot on 1 side so this fall I'll have a crash course on its effect of the surrounding area.
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Re: Thermals an water
By having a pond, you naturally have terrain adjacent to it falling into it as well, so you have that thermal effect. Add to it the water temp, which will create its own thermal. Once the off shore breeze kicks in, the air coming off land will hit the water and then rise with the warmer air off the water. The above mentioned is on a calm day. Add into the equation a prevailing wind of 6-8 mph and now your going to have a thermal tunnel on the down wind side of the pond.
Unfortunately, hunting on the opposite side of the pond(size based on your dimmentions) will not forward you a better opportunity EXCEPT for on calmer days.
On windier days, the thermal tunnel is less of a factor when hunting higher because of the small width to the opening size you gave, hence the prevailing wind will overpower the thermal easily, but it will still exist.
On calm days, I would hunt the opposite side of the pond, shooting across.
On windy days, I would set up on the downwind side of the pond, but high in the tree.
All contingent upon the findings of the milkweed test. But I am confident from my experience that you will want to set up this way.
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Unfortunately, hunting on the opposite side of the pond(size based on your dimmentions) will not forward you a better opportunity EXCEPT for on calmer days.
On windier days, the thermal tunnel is less of a factor when hunting higher because of the small width to the opening size you gave, hence the prevailing wind will overpower the thermal easily, but it will still exist.
On calm days, I would hunt the opposite side of the pond, shooting across.
On windy days, I would set up on the downwind side of the pond, but high in the tree.
All contingent upon the findings of the milkweed test. But I am confident from my experience that you will want to set up this way.
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- DaveT1963
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Re: Thermals an water
In my experience a pond that size will not have that much thermal effect and doubt it would carry far from the CLEAR banks.... I would think the terrain features around it would have more effect (dam, hills, ravines, how large of an opening, trees density, etc.) I don't think it would take much wind at all to negate pure thermal effect. Easy to check with pods.
I hunt similar sized ponds a lot, for bucks I would try to set up on their approach downwind not at the pond itself.
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I hunt similar sized ponds a lot, for bucks I would try to set up on their approach downwind not at the pond itself.
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Re: Thermals an water
The big reason I asked this question it's a high spot in a swamp in the shape of an L open side faces east. There is some beds on the side where the 90 angle makes the point. The open side holds water I don't think it will all year plus there are oaks 10 ft from water I figure this is where a buck would feed first right before dark. So I wanted to know how much effect it would have there. In case I need to rethink my set up. My set up is south east side 35-40 yards from bed an 20 yards from oaks an water if it's there.
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- DaveT1963
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Re: Thermals an water
If this is hill country then I personally would pay far more attention to how the terrain effects the wind. Sounds like you have a lot of tree cover so foliage and lack there of will also play a role.
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- headgear
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Re: Thermals an water
TNstalker wrote:The big reason I asked this question it's a high spot in a swamp in the shape of an L open side faces east. There is some beds on the side where the 90 angle makes the point. The open side holds water I don't think it will all year plus there are oaks 10 ft from water I figure this is where a buck would feed first right before dark. So I wanted to know how much effect it would have there. In case I need to rethink my set up. My set up is south east side 35-40 yards from bed an 20 yards from oaks an water if it's there.
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When planning be ready for both, play the wind but be prepared for the calm, especially that last half hour when the buck will likely be moving. Don't just look at the small water close to the high spot, if there is a larger body of water or even a big area of swamp with vegetation it can sometimes override the smaller body of water. I have been setup close to smaller ponds/lakes but had a larger lake a bit further away create a much strong thermal pull that caught be by surprise. You want to try and position yourself in a spot where the wind and thermals keep your scent away from bedding, sometimes that can get a little interesting. If you can't get there to test the thermal before season just take your best guess and drop a lot of milkweed those first couple of hunts, you will figure it out in due time.
That L shaped tree line could cause some trouble too, maybe create a few swirling winds you might not expect too. It really doesn't take much to throw that wind off .
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Re: Thermals an water
Headgear
How far was that larger body of water?
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How far was that larger body of water?
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Re: Thermals an water
[bbvideo=425,350]https://www.youtube.com/watch?v=DINchyvKHxs&feature=youtu.be[/bbvideo]
- headgear
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Re: Thermals an water
TNstalker wrote:Headgear
How far was that larger body of water?
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Not 100% sure, I think the smaller body of water was only 250 yards away, the larger lake was maybe 500+ yards away. I heard 3 deer walk towards me and then run when they hit the unexpected thermal, finally packed up early and hunted from the ground to maybe catch a straggler but it was too late by then.
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Re: Thermals an water
Thanks for the example Dan. My best bet is to watch this spot to see if when it gets drier if the water sticks around I don't think it will but I could be wrong! But there is no way to get right over top of the water the beds are 5 foot from it. I will just have to keep tabs on it hunt it on some different winds see what happens an how the wind affects it. If I mess up oh well I will learn something about the spot for the next time.
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Re: Thermals an water
Have a new question for y'all but have any of you tried the ground near the water hole? With not being up in the air would it still drag ur scent all the way to the water?
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Re: Thermals an water
TNstalker wrote:Have a new question for y'all but have any of you tried the ground near the water hole? With not being up in the air would it still drag ur scent all the way to the water?
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The effect is greater at ground level than in a tree.
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Re: Thermals an water
Nice!! Well guess I will have to morning hunt it or hunt when that's spots dry then. Thanks for the info!
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Re: Thermals an water
Thanks for sharing the video Dan
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